Commit | Line | Data |
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ef230218 | 1 | /* Renesas / SuperH SH specific support for 32-bit ELF |
b3adc24a | 2 | Copyright (C) 1996-2020 Free Software Foundation, Inc. |
252b5132 RH |
3 | Contributed by Ian Lance Taylor, Cygnus Support. |
4 | ||
571fe01f | 5 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 6 | |
571fe01f NC |
7 | This program is free software; you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 9 | the Free Software Foundation; either version 3 of the License, or |
571fe01f | 10 | (at your option) any later version. |
252b5132 | 11 | |
571fe01f NC |
12 | This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
252b5132 | 16 | |
571fe01f NC |
17 | You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
20 | MA 02110-1301, USA. */ | |
252b5132 | 21 | |
252b5132 | 22 | #include "sysdep.h" |
3db64b00 | 23 | #include "bfd.h" |
252b5132 RH |
24 | #include "bfdlink.h" |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
55e6e397 | 27 | #include "elf-vxworks.h" |
252b5132 | 28 | #include "elf/sh.h" |
8e45593f | 29 | #include "dwarf2.h" |
f6f9408f | 30 | #include "libiberty.h" |
871ec896 | 31 | #include "../opcodes/sh-opc.h" |
252b5132 | 32 | |
bb294208 AM |
33 | /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */ |
34 | #define OCTETS_PER_BYTE(ABFD, SEC) 1 | |
35 | ||
252b5132 | 36 | static bfd_reloc_status_type sh_elf_reloc |
09fd220b | 37 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 38 | static bfd_reloc_status_type sh_elf_ignore_reloc |
09fd220b | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
b34976b6 | 40 | static bfd_boolean sh_elf_relax_delete_bytes |
09fd220b | 41 | (bfd *, asection *, bfd_vma, int); |
b34976b6 | 42 | static bfd_boolean sh_elf_align_loads |
09fd220b | 43 | (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *); |
b34976b6 | 44 | static bfd_boolean sh_elf_swap_insns |
09fd220b | 45 | (bfd *, asection *, void *, bfd_byte *, bfd_vma); |
3376eaf5 | 46 | static int sh_elf_optimized_tls_reloc |
09fd220b | 47 | (struct bfd_link_info *, int, int); |
3376eaf5 | 48 | static bfd_vma dtpoff_base |
09fd220b | 49 | (struct bfd_link_info *); |
267fb3c1 | 50 | static bfd_vma tpoff |
09fd220b | 51 | (struct bfd_link_info *, bfd_vma); |
37c644f2 AO |
52 | |
53 | /* The name of the dynamic interpreter. This is put in the .interp | |
54 | section. */ | |
55 | ||
56 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
252b5132 | 57 | |
8e45593f NC |
58 | /* FDPIC binaries have a default 128K stack. */ |
59 | #define DEFAULT_STACK_SIZE 0x20000 | |
60 | ||
55e6e397 | 61 | #define MINUS_ONE ((bfd_vma) 0 - 1) |
8e45593f NC |
62 | |
63 | /* Decide whether a reference to a symbol can be resolved locally or | |
64 | not. If the symbol is protected, we want the local address, but | |
65 | its function descriptor must be assigned by the dynamic linker. */ | |
66 | #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \ | |
67 | (SYMBOL_REFERENCES_LOCAL (INFO, H) \ | |
68 | || ! elf_hash_table (INFO)->dynamic_sections_created) | |
55e6e397 RS |
69 | \f |
70 | #define SH_PARTIAL32 TRUE | |
71 | #define SH_SRC_MASK32 0xffffffff | |
72 | #define SH_ELF_RELOC sh_elf_reloc | |
38b1a46c NC |
73 | static reloc_howto_type sh_elf_howto_table[] = |
74 | { | |
55e6e397 RS |
75 | #include "elf32-sh-relocs.h" |
76 | }; | |
fbca6ad9 | 77 | |
55e6e397 RS |
78 | #define SH_PARTIAL32 FALSE |
79 | #define SH_SRC_MASK32 0 | |
80 | #define SH_ELF_RELOC bfd_elf_generic_reloc | |
81 | static reloc_howto_type sh_vxworks_howto_table[] = | |
82 | { | |
83 | #include "elf32-sh-relocs.h" | |
84 | }; | |
85 | \f | |
86 | /* Return true if OUTPUT_BFD is a VxWorks object. */ | |
fbca6ad9 | 87 | |
55e6e397 | 88 | static bfd_boolean |
527a23b8 | 89 | vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED) |
55e6e397 | 90 | { |
211dc24b | 91 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 AM |
92 | extern const bfd_target sh_elf32_vxworks_le_vec; |
93 | extern const bfd_target sh_elf32_vxworks_vec; | |
fbca6ad9 | 94 | |
6d00b590 AM |
95 | return (abfd->xvec == &sh_elf32_vxworks_le_vec |
96 | || abfd->xvec == &sh_elf32_vxworks_vec); | |
527a23b8 NC |
97 | #else |
98 | return FALSE; | |
99 | #endif | |
55e6e397 | 100 | } |
fbca6ad9 | 101 | |
8e45593f NC |
102 | /* Return true if OUTPUT_BFD is an FDPIC object. */ |
103 | ||
104 | static bfd_boolean | |
105 | fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED) | |
106 | { | |
211dc24b | 107 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 AM |
108 | extern const bfd_target sh_elf32_fdpic_le_vec; |
109 | extern const bfd_target sh_elf32_fdpic_be_vec; | |
8e45593f | 110 | |
6d00b590 AM |
111 | return (abfd->xvec == &sh_elf32_fdpic_le_vec |
112 | || abfd->xvec == &sh_elf32_fdpic_be_vec); | |
8e45593f NC |
113 | #else |
114 | return FALSE; | |
115 | #endif | |
116 | } | |
117 | ||
55e6e397 | 118 | /* Return the howto table for ABFD. */ |
fbca6ad9 | 119 | |
55e6e397 RS |
120 | static reloc_howto_type * |
121 | get_howto_table (bfd *abfd) | |
122 | { | |
123 | if (vxworks_object_p (abfd)) | |
124 | return sh_vxworks_howto_table; | |
125 | return sh_elf_howto_table; | |
126 | } | |
252b5132 | 127 | |
015551fc | 128 | static bfd_reloc_status_type |
09fd220b KK |
129 | sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd, |
130 | asection *input_section, bfd_byte *contents, | |
131 | bfd_vma addr, asection *symbol_section, | |
132 | bfd_vma start, bfd_vma end) | |
015551fc JR |
133 | { |
134 | static bfd_vma last_addr; | |
00fdaf47 | 135 | static asection *last_symbol_section; |
015551fc JR |
136 | bfd_byte *start_ptr, *ptr, *last_ptr; |
137 | int diff, cum_diff; | |
138 | bfd_signed_vma x; | |
139 | int insn; | |
140 | ||
141 | /* Sanity check the address. */ | |
07515404 | 142 | if (addr > bfd_get_section_limit (input_bfd, input_section)) |
015551fc JR |
143 | return bfd_reloc_outofrange; |
144 | ||
145 | /* We require the start and end relocations to be processed consecutively - | |
146 | although we allow then to be processed forwards or backwards. */ | |
147 | if (! last_addr) | |
148 | { | |
149 | last_addr = addr; | |
150 | last_symbol_section = symbol_section; | |
151 | return bfd_reloc_ok; | |
152 | } | |
153 | if (last_addr != addr) | |
154 | abort (); | |
155 | last_addr = 0; | |
156 | ||
157 | if (! symbol_section || last_symbol_section != symbol_section || end < start) | |
158 | return bfd_reloc_outofrange; | |
159 | ||
160 | /* Get the symbol_section contents. */ | |
161 | if (symbol_section != input_section) | |
162 | { | |
163 | if (elf_section_data (symbol_section)->this_hdr.contents != NULL) | |
164 | contents = elf_section_data (symbol_section)->this_hdr.contents; | |
165 | else | |
166 | { | |
eea6121a AM |
167 | if (!bfd_malloc_and_get_section (input_bfd, symbol_section, |
168 | &contents)) | |
015551fc | 169 | { |
eea6121a AM |
170 | if (contents != NULL) |
171 | free (contents); | |
015551fc JR |
172 | return bfd_reloc_outofrange; |
173 | } | |
174 | } | |
175 | } | |
176 | #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800) | |
177 | start_ptr = contents + start; | |
178 | for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;) | |
179 | { | |
180 | for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);) | |
181 | ptr -= 2; | |
182 | ptr += 2; | |
61ff1804 | 183 | diff = (last_ptr - ptr) >> 1; |
015551fc JR |
184 | cum_diff += diff & 1; |
185 | cum_diff += diff; | |
186 | } | |
187 | /* Calculate the start / end values to load into rs / re minus four - | |
188 | so that will cancel out the four we would otherwise have to add to | |
189 | addr to get the value to subtract in order to get relative addressing. */ | |
190 | if (cum_diff >= 0) | |
191 | { | |
192 | start -= 4; | |
193 | end = (ptr + cum_diff * 2) - contents; | |
194 | } | |
195 | else | |
196 | { | |
197 | bfd_vma start0 = start - 4; | |
198 | ||
a0fc8ba1 | 199 | while (start0 && IS_PPI (contents + start0)) |
015551fc JR |
200 | start0 -= 2; |
201 | start0 = start - 2 - ((start - start0) & 2); | |
202 | start = start0 - cum_diff - 2; | |
203 | end = start0; | |
204 | } | |
205 | ||
6cdc0ccc AM |
206 | if (contents != NULL |
207 | && elf_section_data (symbol_section)->this_hdr.contents != contents) | |
208 | free (contents); | |
015551fc JR |
209 | |
210 | insn = bfd_get_16 (input_bfd, contents + addr); | |
211 | ||
212 | x = (insn & 0x200 ? end : start) - addr; | |
213 | if (input_section != symbol_section) | |
214 | x += ((symbol_section->output_section->vma + symbol_section->output_offset) | |
215 | - (input_section->output_section->vma | |
216 | + input_section->output_offset)); | |
217 | x >>= 1; | |
218 | if (x < -128 || x > 127) | |
219 | return bfd_reloc_overflow; | |
220 | ||
61ff1804 | 221 | x = (insn & ~0xff) | (x & 0xff); |
dc810e39 | 222 | bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr); |
015551fc JR |
223 | |
224 | return bfd_reloc_ok; | |
225 | } | |
226 | ||
227 | /* This function is used for normal relocs. This used to be like the COFF | |
252b5132 RH |
228 | function, and is almost certainly incorrect for other ELF targets. */ |
229 | ||
230 | static bfd_reloc_status_type | |
09fd220b KK |
231 | sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, |
232 | void *data, asection *input_section, bfd *output_bfd, | |
233 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 | 234 | { |
96e2dbda | 235 | bfd_vma insn; |
252b5132 RH |
236 | bfd_vma sym_value; |
237 | enum elf_sh_reloc_type r_type; | |
238 | bfd_vma addr = reloc_entry->address; | |
bb294208 AM |
239 | bfd_size_type octets = addr * OCTETS_PER_BYTE (abfd, input_section); |
240 | bfd_byte *hit_data = (bfd_byte *) data + octets; | |
252b5132 RH |
241 | |
242 | r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; | |
243 | ||
244 | if (output_bfd != NULL) | |
245 | { | |
246 | /* Partial linking--do nothing. */ | |
247 | reloc_entry->address += input_section->output_offset; | |
248 | return bfd_reloc_ok; | |
249 | } | |
250 | ||
251 | /* Almost all relocs have to do with relaxing. If any work must be | |
252 | done for them, it has been done in sh_relax_section. */ | |
015551fc | 253 | if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0) |
252b5132 RH |
254 | return bfd_reloc_ok; |
255 | ||
256 | if (symbol_in != NULL | |
257 | && bfd_is_und_section (symbol_in->section)) | |
258 | return bfd_reloc_undefined; | |
259 | ||
cd21f5da | 260 | /* PR 17512: file: 9891ca98. */ |
bb294208 | 261 | if (octets + bfd_get_reloc_size (reloc_entry->howto) |
6346d5ca | 262 | > bfd_get_section_limit_octets (abfd, input_section)) |
cd21f5da NC |
263 | return bfd_reloc_outofrange; |
264 | ||
252b5132 | 265 | if (bfd_is_com_section (symbol_in->section)) |
435b1e90 KH |
266 | sym_value = 0; |
267 | else | |
252b5132 RH |
268 | sym_value = (symbol_in->value + |
269 | symbol_in->section->output_section->vma + | |
270 | symbol_in->section->output_offset); | |
271 | ||
272 | switch (r_type) | |
273 | { | |
274 | case R_SH_DIR32: | |
275 | insn = bfd_get_32 (abfd, hit_data); | |
276 | insn += sym_value + reloc_entry->addend; | |
96e2dbda | 277 | bfd_put_32 (abfd, insn, hit_data); |
252b5132 RH |
278 | break; |
279 | case R_SH_IND12W: | |
280 | insn = bfd_get_16 (abfd, hit_data); | |
281 | sym_value += reloc_entry->addend; | |
282 | sym_value -= (input_section->output_section->vma | |
283 | + input_section->output_offset | |
284 | + addr | |
285 | + 4); | |
96e2dbda AM |
286 | sym_value += (((insn & 0xfff) ^ 0x800) - 0x800) << 1; |
287 | insn = (insn & 0xf000) | ((sym_value >> 1) & 0xfff); | |
288 | bfd_put_16 (abfd, insn, hit_data); | |
289 | if (sym_value + 0x1000 >= 0x2000 || (sym_value & 1) != 0) | |
252b5132 RH |
290 | return bfd_reloc_overflow; |
291 | break; | |
292 | default: | |
293 | abort (); | |
294 | break; | |
295 | } | |
296 | ||
297 | return bfd_reloc_ok; | |
298 | } | |
299 | ||
300 | /* This function is used for relocs which are only used for relaxing, | |
301 | which the linker should otherwise ignore. */ | |
302 | ||
303 | static bfd_reloc_status_type | |
09fd220b KK |
304 | sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
305 | asymbol *symbol ATTRIBUTE_UNUSED, | |
306 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
307 | bfd *output_bfd, | |
308 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
309 | { |
310 | if (output_bfd != NULL) | |
311 | reloc_entry->address += input_section->output_offset; | |
312 | return bfd_reloc_ok; | |
313 | } | |
314 | ||
315 | /* This structure is used to map BFD reloc codes to SH ELF relocs. */ | |
316 | ||
38b1a46c NC |
317 | struct elf_reloc_map |
318 | { | |
252b5132 RH |
319 | bfd_reloc_code_real_type bfd_reloc_val; |
320 | unsigned char elf_reloc_val; | |
321 | }; | |
322 | ||
323 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
324 | ||
38b1a46c NC |
325 | static const struct elf_reloc_map sh_reloc_map[] = |
326 | { | |
252b5132 RH |
327 | { BFD_RELOC_NONE, R_SH_NONE }, |
328 | { BFD_RELOC_32, R_SH_DIR32 }, | |
d38eb334 DD |
329 | { BFD_RELOC_16, R_SH_DIR16 }, |
330 | { BFD_RELOC_8, R_SH_DIR8 }, | |
252b5132 RH |
331 | { BFD_RELOC_CTOR, R_SH_DIR32 }, |
332 | { BFD_RELOC_32_PCREL, R_SH_REL32 }, | |
333 | { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN }, | |
334 | { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W }, | |
335 | { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ }, | |
336 | { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL }, | |
337 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
338 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
339 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
340 | { BFD_RELOC_SH_USES, R_SH_USES }, | |
341 | { BFD_RELOC_SH_COUNT, R_SH_COUNT }, | |
342 | { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, | |
343 | { BFD_RELOC_SH_CODE, R_SH_CODE }, | |
344 | { BFD_RELOC_SH_DATA, R_SH_DATA }, | |
345 | { BFD_RELOC_SH_LABEL, R_SH_LABEL }, | |
346 | { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, | |
347 | { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, | |
015551fc JR |
348 | { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START }, |
349 | { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END }, | |
3376eaf5 KK |
350 | { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 }, |
351 | { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 }, | |
352 | { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 }, | |
353 | { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 }, | |
354 | { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 }, | |
355 | { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 }, | |
356 | { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 }, | |
357 | { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 }, | |
37c644f2 AO |
358 | { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 }, |
359 | { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 }, | |
360 | { BFD_RELOC_SH_COPY, R_SH_COPY }, | |
361 | { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT }, | |
362 | { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT }, | |
363 | { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE }, | |
364 | { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF }, | |
365 | { BFD_RELOC_SH_GOTPC, R_SH_GOTPC }, | |
fbca6ad9 | 366 | { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 }, |
8e45593f NC |
367 | { BFD_RELOC_SH_GOT20, R_SH_GOT20 }, |
368 | { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 }, | |
369 | { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC }, | |
370 | { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 }, | |
371 | { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC }, | |
372 | { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 }, | |
373 | { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC }, | |
252b5132 RH |
374 | }; |
375 | ||
376 | /* Given a BFD reloc code, return the howto structure for the | |
55e6e397 | 377 | corresponding SH ELF reloc. */ |
252b5132 RH |
378 | |
379 | static reloc_howto_type * | |
55e6e397 | 380 | sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
252b5132 RH |
381 | { |
382 | unsigned int i; | |
383 | ||
384 | for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
385 | { | |
386 | if (sh_reloc_map[i].bfd_reloc_val == code) | |
55e6e397 | 387 | return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val; |
252b5132 RH |
388 | } |
389 | ||
390 | return NULL; | |
391 | } | |
392 | ||
157090f7 AM |
393 | static reloc_howto_type * |
394 | sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name) | |
395 | { | |
396 | unsigned int i; | |
397 | ||
398 | if (vxworks_object_p (abfd)) | |
399 | { | |
400 | for (i = 0; | |
401 | i < (sizeof (sh_vxworks_howto_table) | |
402 | / sizeof (sh_vxworks_howto_table[0])); | |
403 | i++) | |
404 | if (sh_vxworks_howto_table[i].name != NULL | |
405 | && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0) | |
406 | return &sh_vxworks_howto_table[i]; | |
407 | } | |
408 | else | |
409 | { | |
410 | for (i = 0; | |
411 | i < (sizeof (sh_elf_howto_table) | |
412 | / sizeof (sh_elf_howto_table[0])); | |
413 | i++) | |
414 | if (sh_elf_howto_table[i].name != NULL | |
415 | && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0) | |
416 | return &sh_elf_howto_table[i]; | |
417 | } | |
418 | ||
419 | return NULL; | |
420 | } | |
421 | ||
252b5132 RH |
422 | /* Given an ELF reloc, fill in the howto field of a relent. */ |
423 | ||
f3185997 | 424 | static bfd_boolean |
55e6e397 | 425 | sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
252b5132 RH |
426 | { |
427 | unsigned int r; | |
428 | ||
429 | r = ELF32_R_TYPE (dst->r_info); | |
430 | ||
cd21f5da NC |
431 | if (r >= R_SH_max |
432 | || (r >= R_SH_FIRST_INVALID_RELOC && r <= R_SH_LAST_INVALID_RELOC) | |
433 | || (r >= R_SH_FIRST_INVALID_RELOC_2 && r <= R_SH_LAST_INVALID_RELOC_2) | |
434 | || (r >= R_SH_FIRST_INVALID_RELOC_3 && r <= R_SH_LAST_INVALID_RELOC_3) | |
435 | || (r >= R_SH_FIRST_INVALID_RELOC_4 && r <= R_SH_LAST_INVALID_RELOC_4) | |
436 | || (r >= R_SH_FIRST_INVALID_RELOC_5 && r <= R_SH_LAST_INVALID_RELOC_5) | |
437 | || (r >= R_SH_FIRST_INVALID_RELOC_6 && r <= R_SH_LAST_INVALID_RELOC_6)) | |
438 | { | |
695344c0 | 439 | /* xgettext:c-format */ |
0aa13fee | 440 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 441 | abfd, r); |
cd21f5da | 442 | bfd_set_error (bfd_error_bad_value); |
f3185997 | 443 | return FALSE; |
cd21f5da | 444 | } |
252b5132 | 445 | |
55e6e397 | 446 | cache_ptr->howto = get_howto_table (abfd) + r; |
f3185997 | 447 | return TRUE; |
252b5132 RH |
448 | } |
449 | \f | |
450 | /* This function handles relaxing for SH ELF. See the corresponding | |
451 | function in coff-sh.c for a description of what this does. FIXME: | |
452 | There is a lot of duplication here between this code and the COFF | |
453 | specific code. The format of relocs and symbols is wound deeply | |
454 | into this code, but it would still be better if the duplication | |
455 | could be eliminated somehow. Note in particular that although both | |
456 | functions use symbols like R_SH_CODE, those symbols have different | |
457 | values; in coff-sh.c they come from include/coff/sh.h, whereas here | |
458 | they come from enum elf_sh_reloc_type in include/elf/sh.h. */ | |
459 | ||
b34976b6 | 460 | static bfd_boolean |
09fd220b KK |
461 | sh_elf_relax_section (bfd *abfd, asection *sec, |
462 | struct bfd_link_info *link_info, bfd_boolean *again) | |
252b5132 RH |
463 | { |
464 | Elf_Internal_Shdr *symtab_hdr; | |
465 | Elf_Internal_Rela *internal_relocs; | |
b34976b6 | 466 | bfd_boolean have_code; |
252b5132 RH |
467 | Elf_Internal_Rela *irel, *irelend; |
468 | bfd_byte *contents = NULL; | |
6cdc0ccc | 469 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 470 | |
b34976b6 | 471 | *again = FALSE; |
252b5132 | 472 | |
0e1862bb | 473 | if (bfd_link_relocatable (link_info) |
252b5132 RH |
474 | || (sec->flags & SEC_RELOC) == 0 |
475 | || sec->reloc_count == 0) | |
b34976b6 | 476 | return TRUE; |
252b5132 | 477 | |
0ffa91dd | 478 | symtab_hdr = &elf_symtab_hdr (abfd); |
252b5132 | 479 | |
45d6a902 | 480 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 481 | (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, |
252b5132 RH |
482 | link_info->keep_memory)); |
483 | if (internal_relocs == NULL) | |
484 | goto error_return; | |
252b5132 | 485 | |
b34976b6 | 486 | have_code = FALSE; |
252b5132 RH |
487 | |
488 | irelend = internal_relocs + sec->reloc_count; | |
489 | for (irel = internal_relocs; irel < irelend; irel++) | |
490 | { | |
491 | bfd_vma laddr, paddr, symval; | |
492 | unsigned short insn; | |
493 | Elf_Internal_Rela *irelfn, *irelscan, *irelcount; | |
494 | bfd_signed_vma foff; | |
495 | ||
496 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE) | |
b34976b6 | 497 | have_code = TRUE; |
252b5132 RH |
498 | |
499 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES) | |
500 | continue; | |
501 | ||
502 | /* Get the section contents. */ | |
503 | if (contents == NULL) | |
504 | { | |
505 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
506 | contents = elf_section_data (sec)->this_hdr.contents; | |
507 | else | |
508 | { | |
eea6121a | 509 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
510 | goto error_return; |
511 | } | |
512 | } | |
513 | ||
514 | /* The r_addend field of the R_SH_USES reloc will point us to | |
067653c5 AM |
515 | the register load. The 4 is because the r_addend field is |
516 | computed as though it were a jump offset, which are based | |
517 | from 4 bytes after the jump instruction. */ | |
252b5132 | 518 | laddr = irel->r_offset + 4 + irel->r_addend; |
eea6121a | 519 | if (laddr >= sec->size) |
252b5132 | 520 | { |
695344c0 | 521 | /* xgettext:c-format */ |
2dcf00ce AM |
522 | _bfd_error_handler |
523 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"), | |
524 | abfd, (uint64_t) irel->r_offset); | |
252b5132 RH |
525 | continue; |
526 | } | |
527 | insn = bfd_get_16 (abfd, contents + laddr); | |
528 | ||
529 | /* If the instruction is not mov.l NN,rN, we don't know what to | |
067653c5 | 530 | do. */ |
252b5132 RH |
531 | if ((insn & 0xf000) != 0xd000) |
532 | { | |
4eca0228 | 533 | _bfd_error_handler |
695344c0 | 534 | /* xgettext:c-format */ |
2dcf00ce AM |
535 | (_("%pB: %#" PRIx64 ": warning: " |
536 | "R_SH_USES points to unrecognized insn 0x%x"), | |
537 | abfd, (uint64_t) irel->r_offset, insn); | |
252b5132 RH |
538 | continue; |
539 | } | |
540 | ||
541 | /* Get the address from which the register is being loaded. The | |
99e4ae17 AJ |
542 | displacement in the mov.l instruction is quadrupled. It is a |
543 | displacement from four bytes after the movl instruction, but, | |
544 | before adding in the PC address, two least significant bits | |
545 | of the PC are cleared. We assume that the section is aligned | |
546 | on a four byte boundary. */ | |
252b5132 RH |
547 | paddr = insn & 0xff; |
548 | paddr *= 4; | |
dc810e39 | 549 | paddr += (laddr + 4) &~ (bfd_vma) 3; |
eea6121a | 550 | if (paddr >= sec->size) |
252b5132 | 551 | { |
4eca0228 | 552 | _bfd_error_handler |
695344c0 | 553 | /* xgettext:c-format */ |
2dcf00ce AM |
554 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"), |
555 | abfd, (uint64_t) irel->r_offset); | |
252b5132 RH |
556 | continue; |
557 | } | |
558 | ||
559 | /* Get the reloc for the address from which the register is | |
067653c5 AM |
560 | being loaded. This reloc will tell us which function is |
561 | actually being called. */ | |
252b5132 RH |
562 | for (irelfn = internal_relocs; irelfn < irelend; irelfn++) |
563 | if (irelfn->r_offset == paddr | |
564 | && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32) | |
565 | break; | |
566 | if (irelfn >= irelend) | |
567 | { | |
4eca0228 | 568 | _bfd_error_handler |
695344c0 | 569 | /* xgettext:c-format */ |
2dcf00ce AM |
570 | (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"), |
571 | abfd, (uint64_t) paddr); | |
252b5132 RH |
572 | continue; |
573 | } | |
574 | ||
575 | /* Read this BFD's symbols if we haven't done so already. */ | |
6cdc0ccc | 576 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
252b5132 | 577 | { |
6cdc0ccc AM |
578 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
579 | if (isymbuf == NULL) | |
580 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
581 | symtab_hdr->sh_info, 0, | |
582 | NULL, NULL, NULL); | |
583 | if (isymbuf == NULL) | |
584 | goto error_return; | |
252b5132 RH |
585 | } |
586 | ||
587 | /* Get the value of the symbol referred to by the reloc. */ | |
588 | if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) | |
589 | { | |
9ad5cbcf | 590 | /* A local symbol. */ |
6cdc0ccc | 591 | Elf_Internal_Sym *isym; |
252b5132 | 592 | |
6cdc0ccc AM |
593 | isym = isymbuf + ELF32_R_SYM (irelfn->r_info); |
594 | if (isym->st_shndx | |
d426c6b0 | 595 | != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec)) |
252b5132 | 596 | { |
4eca0228 | 597 | _bfd_error_handler |
695344c0 | 598 | /* xgettext:c-format */ |
2dcf00ce AM |
599 | (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"), |
600 | abfd, (uint64_t) paddr); | |
252b5132 RH |
601 | continue; |
602 | } | |
603 | ||
6cdc0ccc | 604 | symval = (isym->st_value |
252b5132 RH |
605 | + sec->output_section->vma |
606 | + sec->output_offset); | |
607 | } | |
608 | else | |
609 | { | |
610 | unsigned long indx; | |
611 | struct elf_link_hash_entry *h; | |
612 | ||
613 | indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info; | |
614 | h = elf_sym_hashes (abfd)[indx]; | |
615 | BFD_ASSERT (h != NULL); | |
616 | if (h->root.type != bfd_link_hash_defined | |
617 | && h->root.type != bfd_link_hash_defweak) | |
618 | { | |
619 | /* This appears to be a reference to an undefined | |
067653c5 AM |
620 | symbol. Just ignore it--it will be caught by the |
621 | regular reloc processing. */ | |
252b5132 RH |
622 | continue; |
623 | } | |
624 | ||
625 | symval = (h->root.u.def.value | |
626 | + h->root.u.def.section->output_section->vma | |
627 | + h->root.u.def.section->output_offset); | |
628 | } | |
629 | ||
55e6e397 RS |
630 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
631 | symval += bfd_get_32 (abfd, contents + paddr); | |
632 | else | |
633 | symval += irelfn->r_addend; | |
252b5132 RH |
634 | |
635 | /* See if this function call can be shortened. */ | |
636 | foff = (symval | |
637 | - (irel->r_offset | |
638 | + sec->output_section->vma | |
639 | + sec->output_offset | |
640 | + 4)); | |
f725025b DD |
641 | /* A branch to an address beyond ours might be increased by an |
642 | .align that doesn't move when bytes behind us are deleted. | |
643 | So, we add some slop in this calculation to allow for | |
644 | that. */ | |
645 | if (foff < -0x1000 || foff >= 0x1000 - 8) | |
252b5132 RH |
646 | { |
647 | /* After all that work, we can't shorten this function call. */ | |
648 | continue; | |
649 | } | |
650 | ||
651 | /* Shorten the function call. */ | |
652 | ||
653 | /* For simplicity of coding, we are going to modify the section | |
654 | contents, the section relocs, and the BFD symbol table. We | |
655 | must tell the rest of the code not to free up this | |
656 | information. It would be possible to instead create a table | |
657 | of changes which have to be made, as is done in coff-mips.c; | |
658 | that would be more work, but would require less memory when | |
659 | the linker is run. */ | |
660 | ||
661 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 662 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 663 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 | 664 | |
8c784016 | 665 | /* Replace the jmp/jsr with a bra/bsr. */ |
252b5132 RH |
666 | |
667 | /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and | |
8c784016 | 668 | replace the jmp/jsr with a bra/bsr. */ |
252b5132 | 669 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W); |
bdfaef52 JR |
670 | /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) |
671 | here, but that only checks if the symbol is an external symbol, | |
672 | not if the symbol is in a different section. Besides, we need | |
673 | a consistent meaning for the relocation, so we just assume here that | |
674 | the value of the symbol is not available. */ | |
0e71e495 BE |
675 | |
676 | /* We can't fully resolve this yet, because the external | |
677 | symbol value may be changed by future relaxing. We let | |
678 | the final link phase handle it. */ | |
8c784016 KK |
679 | if (bfd_get_16 (abfd, contents + irel->r_offset) & 0x0020) |
680 | bfd_put_16 (abfd, (bfd_vma) 0xa000, contents + irel->r_offset); | |
681 | else | |
682 | bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset); | |
0e71e495 | 683 | |
bdfaef52 | 684 | irel->r_addend = -4; |
252b5132 | 685 | |
f725025b DD |
686 | /* When we calculated the symbol "value" we had an offset in the |
687 | DIR32's word in memory (we read and add it above). However, | |
688 | the jsr we create does NOT have this offset encoded, so we | |
689 | have to add it to the addend to preserve it. */ | |
690 | irel->r_addend += bfd_get_32 (abfd, contents + paddr); | |
691 | ||
252b5132 | 692 | /* See if there is another R_SH_USES reloc referring to the same |
067653c5 | 693 | register load. */ |
252b5132 RH |
694 | for (irelscan = internal_relocs; irelscan < irelend; irelscan++) |
695 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES | |
696 | && laddr == irelscan->r_offset + 4 + irelscan->r_addend) | |
697 | break; | |
698 | if (irelscan < irelend) | |
699 | { | |
700 | /* Some other function call depends upon this register load, | |
701 | and we have not yet converted that function call. | |
702 | Indeed, we may never be able to convert it. There is | |
703 | nothing else we can do at this point. */ | |
704 | continue; | |
705 | } | |
706 | ||
707 | /* Look for a R_SH_COUNT reloc on the location where the | |
067653c5 AM |
708 | function address is stored. Do this before deleting any |
709 | bytes, to avoid confusion about the address. */ | |
252b5132 RH |
710 | for (irelcount = internal_relocs; irelcount < irelend; irelcount++) |
711 | if (irelcount->r_offset == paddr | |
712 | && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT) | |
713 | break; | |
714 | ||
715 | /* Delete the register load. */ | |
716 | if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2)) | |
717 | goto error_return; | |
718 | ||
719 | /* That will change things, so, just in case it permits some | |
067653c5 AM |
720 | other function call to come within range, we should relax |
721 | again. Note that this is not required, and it may be slow. */ | |
b34976b6 | 722 | *again = TRUE; |
252b5132 RH |
723 | |
724 | /* Now check whether we got a COUNT reloc. */ | |
725 | if (irelcount >= irelend) | |
726 | { | |
4eca0228 | 727 | _bfd_error_handler |
695344c0 | 728 | /* xgettext:c-format */ |
2dcf00ce AM |
729 | (_("%pB: %#" PRIx64 ": warning: " |
730 | "could not find expected COUNT reloc"), | |
731 | abfd, (uint64_t) paddr); | |
252b5132 RH |
732 | continue; |
733 | } | |
734 | ||
735 | /* The number of uses is stored in the r_addend field. We've | |
067653c5 | 736 | just deleted one. */ |
252b5132 RH |
737 | if (irelcount->r_addend == 0) |
738 | { | |
695344c0 | 739 | /* xgettext:c-format */ |
2dcf00ce AM |
740 | _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"), |
741 | abfd, (uint64_t) paddr); | |
252b5132 RH |
742 | continue; |
743 | } | |
744 | ||
745 | --irelcount->r_addend; | |
746 | ||
747 | /* If there are no more uses, we can delete the address. Reload | |
067653c5 AM |
748 | the address from irelfn, in case it was changed by the |
749 | previous call to sh_elf_relax_delete_bytes. */ | |
252b5132 RH |
750 | if (irelcount->r_addend == 0) |
751 | { | |
752 | if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4)) | |
753 | goto error_return; | |
754 | } | |
755 | ||
756 | /* We've done all we can with that function call. */ | |
757 | } | |
758 | ||
759 | /* Look for load and store instructions that we can align on four | |
760 | byte boundaries. */ | |
bdfaef52 JR |
761 | if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4 |
762 | && have_code) | |
252b5132 | 763 | { |
b34976b6 | 764 | bfd_boolean swapped; |
252b5132 RH |
765 | |
766 | /* Get the section contents. */ | |
767 | if (contents == NULL) | |
768 | { | |
769 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
770 | contents = elf_section_data (sec)->this_hdr.contents; | |
771 | else | |
772 | { | |
eea6121a | 773 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
774 | goto error_return; |
775 | } | |
776 | } | |
777 | ||
778 | if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents, | |
779 | &swapped)) | |
780 | goto error_return; | |
781 | ||
782 | if (swapped) | |
783 | { | |
784 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 785 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 786 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
787 | } |
788 | } | |
789 | ||
6cdc0ccc AM |
790 | if (isymbuf != NULL |
791 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
792 | { |
793 | if (! link_info->keep_memory) | |
6cdc0ccc | 794 | free (isymbuf); |
252b5132 RH |
795 | else |
796 | { | |
6cdc0ccc AM |
797 | /* Cache the symbols for elf_link_input_bfd. */ |
798 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 799 | } |
9ad5cbcf AM |
800 | } |
801 | ||
6cdc0ccc AM |
802 | if (contents != NULL |
803 | && elf_section_data (sec)->this_hdr.contents != contents) | |
252b5132 RH |
804 | { |
805 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
806 | free (contents); |
807 | else | |
252b5132 | 808 | { |
6cdc0ccc AM |
809 | /* Cache the section contents for elf_link_input_bfd. */ |
810 | elf_section_data (sec)->this_hdr.contents = contents; | |
252b5132 | 811 | } |
252b5132 RH |
812 | } |
813 | ||
6cdc0ccc AM |
814 | if (internal_relocs != NULL |
815 | && elf_section_data (sec)->relocs != internal_relocs) | |
816 | free (internal_relocs); | |
817 | ||
b34976b6 | 818 | return TRUE; |
252b5132 RH |
819 | |
820 | error_return: | |
6cdc0ccc AM |
821 | if (isymbuf != NULL |
822 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
823 | free (isymbuf); | |
824 | if (contents != NULL | |
825 | && elf_section_data (sec)->this_hdr.contents != contents) | |
826 | free (contents); | |
827 | if (internal_relocs != NULL | |
828 | && elf_section_data (sec)->relocs != internal_relocs) | |
829 | free (internal_relocs); | |
9ad5cbcf | 830 | |
b34976b6 | 831 | return FALSE; |
252b5132 RH |
832 | } |
833 | ||
834 | /* Delete some bytes from a section while relaxing. FIXME: There is a | |
835 | lot of duplication between this function and sh_relax_delete_bytes | |
836 | in coff-sh.c. */ | |
837 | ||
b34976b6 | 838 | static bfd_boolean |
09fd220b KK |
839 | sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, |
840 | int count) | |
252b5132 RH |
841 | { |
842 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 843 | unsigned int sec_shndx; |
252b5132 RH |
844 | bfd_byte *contents; |
845 | Elf_Internal_Rela *irel, *irelend; | |
846 | Elf_Internal_Rela *irelalign; | |
847 | bfd_vma toaddr; | |
6cdc0ccc | 848 | Elf_Internal_Sym *isymbuf, *isym, *isymend; |
9ad5cbcf AM |
849 | struct elf_link_hash_entry **sym_hashes; |
850 | struct elf_link_hash_entry **end_hashes; | |
851 | unsigned int symcount; | |
252b5132 RH |
852 | asection *o; |
853 | ||
0ffa91dd | 854 | symtab_hdr = &elf_symtab_hdr (abfd); |
6cdc0ccc | 855 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
9ad5cbcf AM |
856 | |
857 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 RH |
858 | |
859 | contents = elf_section_data (sec)->this_hdr.contents; | |
860 | ||
de194d85 | 861 | /* The deletion must stop at the next ALIGN reloc for an alignment |
252b5132 RH |
862 | power larger than the number of bytes we are deleting. */ |
863 | ||
864 | irelalign = NULL; | |
eea6121a | 865 | toaddr = sec->size; |
252b5132 RH |
866 | |
867 | irel = elf_section_data (sec)->relocs; | |
868 | irelend = irel + sec->reloc_count; | |
869 | for (; irel < irelend; irel++) | |
870 | { | |
871 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
872 | && irel->r_offset > addr | |
873 | && count < (1 << irel->r_addend)) | |
874 | { | |
875 | irelalign = irel; | |
876 | toaddr = irel->r_offset; | |
877 | break; | |
878 | } | |
879 | } | |
880 | ||
881 | /* Actually delete the bytes. */ | |
dc810e39 AM |
882 | memmove (contents + addr, contents + addr + count, |
883 | (size_t) (toaddr - addr - count)); | |
252b5132 | 884 | if (irelalign == NULL) |
eea6121a | 885 | sec->size -= count; |
252b5132 RH |
886 | else |
887 | { | |
888 | int i; | |
889 | ||
890 | #define NOP_OPCODE (0x0009) | |
891 | ||
892 | BFD_ASSERT ((count & 1) == 0); | |
893 | for (i = 0; i < count; i += 2) | |
dc810e39 | 894 | bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i); |
252b5132 RH |
895 | } |
896 | ||
897 | /* Adjust all the relocs. */ | |
898 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
899 | { | |
900 | bfd_vma nraddr, stop; | |
901 | bfd_vma start = 0; | |
902 | int insn = 0; | |
252b5132 RH |
903 | int off, adjust, oinsn; |
904 | bfd_signed_vma voff = 0; | |
b34976b6 | 905 | bfd_boolean overflow; |
252b5132 RH |
906 | |
907 | /* Get the new reloc address. */ | |
908 | nraddr = irel->r_offset; | |
909 | if ((irel->r_offset > addr | |
910 | && irel->r_offset < toaddr) | |
911 | || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
912 | && irel->r_offset == toaddr)) | |
913 | nraddr -= count; | |
914 | ||
915 | /* See if this reloc was for the bytes we have deleted, in which | |
916 | case we no longer care about it. Don't delete relocs which | |
917 | represent addresses, though. */ | |
918 | if (irel->r_offset >= addr | |
919 | && irel->r_offset < addr + count | |
920 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN | |
921 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE | |
922 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA | |
923 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL) | |
924 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
925 | (int) R_SH_NONE); | |
926 | ||
927 | /* If this is a PC relative reloc, see if the range it covers | |
067653c5 | 928 | includes the bytes we have deleted. */ |
252b5132 RH |
929 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
930 | { | |
931 | default: | |
932 | break; | |
933 | ||
934 | case R_SH_DIR8WPN: | |
935 | case R_SH_IND12W: | |
936 | case R_SH_DIR8WPZ: | |
937 | case R_SH_DIR8WPL: | |
938 | start = irel->r_offset; | |
939 | insn = bfd_get_16 (abfd, contents + nraddr); | |
940 | break; | |
941 | } | |
942 | ||
943 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
944 | { | |
945 | default: | |
946 | start = stop = addr; | |
947 | break; | |
948 | ||
949 | case R_SH_DIR32: | |
950 | /* If this reloc is against a symbol defined in this | |
067653c5 AM |
951 | section, and the symbol will not be adjusted below, we |
952 | must check the addend to see it will put the value in | |
953 | range to be adjusted, and hence must be changed. */ | |
252b5132 RH |
954 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
955 | { | |
6cdc0ccc AM |
956 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
957 | if (isym->st_shndx == sec_shndx | |
958 | && (isym->st_value <= addr | |
959 | || isym->st_value >= toaddr)) | |
252b5132 RH |
960 | { |
961 | bfd_vma val; | |
962 | ||
55e6e397 RS |
963 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
964 | { | |
965 | val = bfd_get_32 (abfd, contents + nraddr); | |
966 | val += isym->st_value; | |
967 | if (val > addr && val < toaddr) | |
968 | bfd_put_32 (abfd, val - count, contents + nraddr); | |
969 | } | |
970 | else | |
971 | { | |
972 | val = isym->st_value + irel->r_addend; | |
973 | if (val > addr && val < toaddr) | |
974 | irel->r_addend -= count; | |
975 | } | |
252b5132 RH |
976 | } |
977 | } | |
978 | start = stop = addr; | |
979 | break; | |
980 | ||
981 | case R_SH_DIR8WPN: | |
982 | off = insn & 0xff; | |
983 | if (off & 0x80) | |
984 | off -= 0x100; | |
985 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
986 | break; | |
987 | ||
988 | case R_SH_IND12W: | |
bdfaef52 JR |
989 | off = insn & 0xfff; |
990 | if (! off) | |
991 | { | |
992 | /* This has been made by previous relaxation. Since the | |
993 | relocation will be against an external symbol, the | |
994 | final relocation will just do the right thing. */ | |
995 | start = stop = addr; | |
996 | } | |
252b5132 RH |
997 | else |
998 | { | |
252b5132 RH |
999 | if (off & 0x800) |
1000 | off -= 0x1000; | |
1001 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
bdfaef52 JR |
1002 | |
1003 | /* The addend will be against the section symbol, thus | |
1004 | for adjusting the addend, the relevant start is the | |
1005 | start of the section. | |
4cc11e76 | 1006 | N.B. If we want to abandon in-place changes here and |
bdfaef52 JR |
1007 | test directly using symbol + addend, we have to take into |
1008 | account that the addend has already been adjusted by -4. */ | |
1009 | if (stop > addr && stop < toaddr) | |
1010 | irel->r_addend -= count; | |
252b5132 RH |
1011 | } |
1012 | break; | |
1013 | ||
1014 | case R_SH_DIR8WPZ: | |
1015 | off = insn & 0xff; | |
1016 | stop = start + 4 + off * 2; | |
1017 | break; | |
1018 | ||
1019 | case R_SH_DIR8WPL: | |
1020 | off = insn & 0xff; | |
435b1e90 | 1021 | stop = (start & ~(bfd_vma) 3) + 4 + off * 4; |
252b5132 RH |
1022 | break; |
1023 | ||
1024 | case R_SH_SWITCH8: | |
1025 | case R_SH_SWITCH16: | |
1026 | case R_SH_SWITCH32: | |
1027 | /* These relocs types represent | |
1028 | .word L2-L1 | |
06e1ba78 | 1029 | The r_addend field holds the difference between the reloc |
252b5132 RH |
1030 | address and L1. That is the start of the reloc, and |
1031 | adding in the contents gives us the top. We must adjust | |
06e1ba78 JR |
1032 | both the r_offset field and the section contents. |
1033 | N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset, | |
1034 | and the elf bfd r_offset is called r_vaddr. */ | |
252b5132 | 1035 | |
06e1ba78 JR |
1036 | stop = irel->r_offset; |
1037 | start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend); | |
252b5132 RH |
1038 | |
1039 | if (start > addr | |
1040 | && start < toaddr | |
1041 | && (stop <= addr || stop >= toaddr)) | |
1042 | irel->r_addend += count; | |
1043 | else if (stop > addr | |
1044 | && stop < toaddr | |
1045 | && (start <= addr || start >= toaddr)) | |
1046 | irel->r_addend -= count; | |
1047 | ||
252b5132 RH |
1048 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16) |
1049 | voff = bfd_get_signed_16 (abfd, contents + nraddr); | |
1050 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8) | |
1051 | voff = bfd_get_8 (abfd, contents + nraddr); | |
1052 | else | |
1053 | voff = bfd_get_signed_32 (abfd, contents + nraddr); | |
1054 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1055 | ||
1056 | break; | |
1057 | ||
1058 | case R_SH_USES: | |
1059 | start = irel->r_offset; | |
1060 | stop = (bfd_vma) ((bfd_signed_vma) start | |
1061 | + (long) irel->r_addend | |
1062 | + 4); | |
1063 | break; | |
1064 | } | |
1065 | ||
1066 | if (start > addr | |
1067 | && start < toaddr | |
1068 | && (stop <= addr || stop >= toaddr)) | |
1069 | adjust = count; | |
1070 | else if (stop > addr | |
1071 | && stop < toaddr | |
1072 | && (start <= addr || start >= toaddr)) | |
1073 | adjust = - count; | |
1074 | else | |
1075 | adjust = 0; | |
1076 | ||
1077 | if (adjust != 0) | |
1078 | { | |
1079 | oinsn = insn; | |
b34976b6 | 1080 | overflow = FALSE; |
252b5132 RH |
1081 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
1082 | { | |
1083 | default: | |
1084 | abort (); | |
1085 | break; | |
1086 | ||
1087 | case R_SH_DIR8WPN: | |
1088 | case R_SH_DIR8WPZ: | |
1089 | insn += adjust / 2; | |
1090 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1091 | overflow = TRUE; |
dc810e39 | 1092 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1093 | break; |
1094 | ||
1095 | case R_SH_IND12W: | |
1096 | insn += adjust / 2; | |
1097 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1098 | overflow = TRUE; |
dc810e39 | 1099 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1100 | break; |
1101 | ||
1102 | case R_SH_DIR8WPL: | |
1103 | BFD_ASSERT (adjust == count || count >= 4); | |
1104 | if (count >= 4) | |
1105 | insn += adjust / 4; | |
1106 | else | |
1107 | { | |
1108 | if ((irel->r_offset & 3) == 0) | |
1109 | ++insn; | |
1110 | } | |
1111 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1112 | overflow = TRUE; |
dc810e39 | 1113 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1114 | break; |
1115 | ||
851cde10 JR |
1116 | case R_SH_SWITCH8: |
1117 | voff += adjust; | |
1118 | if (voff < 0 || voff >= 0xff) | |
b34976b6 | 1119 | overflow = TRUE; |
851cde10 JR |
1120 | bfd_put_8 (abfd, voff, contents + nraddr); |
1121 | break; | |
1122 | ||
252b5132 RH |
1123 | case R_SH_SWITCH16: |
1124 | voff += adjust; | |
1125 | if (voff < - 0x8000 || voff >= 0x8000) | |
b34976b6 | 1126 | overflow = TRUE; |
dc810e39 | 1127 | bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1128 | break; |
1129 | ||
1130 | case R_SH_SWITCH32: | |
1131 | voff += adjust; | |
dc810e39 | 1132 | bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1133 | break; |
1134 | ||
1135 | case R_SH_USES: | |
1136 | irel->r_addend += adjust; | |
1137 | break; | |
1138 | } | |
1139 | ||
1140 | if (overflow) | |
1141 | { | |
4eca0228 | 1142 | _bfd_error_handler |
695344c0 | 1143 | /* xgettext:c-format */ |
2dcf00ce AM |
1144 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), |
1145 | abfd, (uint64_t) irel->r_offset); | |
252b5132 | 1146 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1147 | return FALSE; |
252b5132 RH |
1148 | } |
1149 | } | |
1150 | ||
1151 | irel->r_offset = nraddr; | |
1152 | } | |
1153 | ||
1154 | /* Look through all the other sections. If there contain any IMM32 | |
1155 | relocs against internal symbols which we are not going to adjust | |
1156 | below, we may need to adjust the addends. */ | |
1157 | for (o = abfd->sections; o != NULL; o = o->next) | |
1158 | { | |
1159 | Elf_Internal_Rela *internal_relocs; | |
1160 | Elf_Internal_Rela *irelscan, *irelscanend; | |
1161 | bfd_byte *ocontents; | |
1162 | ||
1163 | if (o == sec | |
1164 | || (o->flags & SEC_RELOC) == 0 | |
1165 | || o->reloc_count == 0) | |
1166 | continue; | |
1167 | ||
1168 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
b34976b6 | 1169 | FALSE, we should free them, if we are permitted to, when we |
067653c5 | 1170 | leave sh_coff_relax_section. */ |
45d6a902 | 1171 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 1172 | (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE)); |
252b5132 | 1173 | if (internal_relocs == NULL) |
b34976b6 | 1174 | return FALSE; |
252b5132 RH |
1175 | |
1176 | ocontents = NULL; | |
1177 | irelscanend = internal_relocs + o->reloc_count; | |
1178 | for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) | |
1179 | { | |
084aa3aa JR |
1180 | /* Dwarf line numbers use R_SH_SWITCH32 relocs. */ |
1181 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32) | |
1182 | { | |
1183 | bfd_vma start, stop; | |
1184 | bfd_signed_vma voff; | |
1185 | ||
1186 | if (ocontents == NULL) | |
1187 | { | |
1188 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1189 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1190 | else | |
1191 | { | |
1192 | /* We always cache the section contents. | |
b34976b6 | 1193 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1194 | should free them, if we are permitted to, |
1195 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1196 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1197 | { | |
1198 | if (ocontents != NULL) | |
1199 | free (ocontents); | |
1200 | return FALSE; | |
1201 | } | |
1202 | ||
084aa3aa JR |
1203 | elf_section_data (o)->this_hdr.contents = ocontents; |
1204 | } | |
1205 | } | |
1206 | ||
1207 | stop = irelscan->r_offset; | |
1208 | start | |
1209 | = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend); | |
1210 | ||
1211 | /* STOP is in a different section, so it won't change. */ | |
1212 | if (start > addr && start < toaddr) | |
1213 | irelscan->r_addend += count; | |
1214 | ||
1215 | voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset); | |
1216 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1217 | ||
1218 | if (start > addr | |
1219 | && start < toaddr | |
1220 | && (stop <= addr || stop >= toaddr)) | |
dc810e39 | 1221 | bfd_put_signed_32 (abfd, (bfd_vma) voff + count, |
084aa3aa JR |
1222 | ocontents + irelscan->r_offset); |
1223 | else if (stop > addr | |
1224 | && stop < toaddr | |
1225 | && (start <= addr || start >= toaddr)) | |
dc810e39 | 1226 | bfd_put_signed_32 (abfd, (bfd_vma) voff - count, |
084aa3aa JR |
1227 | ocontents + irelscan->r_offset); |
1228 | } | |
1229 | ||
252b5132 RH |
1230 | if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32) |
1231 | continue; | |
1232 | ||
1233 | if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info) | |
1234 | continue; | |
1235 | ||
252b5132 | 1236 | |
6cdc0ccc AM |
1237 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); |
1238 | if (isym->st_shndx == sec_shndx | |
1239 | && (isym->st_value <= addr | |
1240 | || isym->st_value >= toaddr)) | |
252b5132 RH |
1241 | { |
1242 | bfd_vma val; | |
1243 | ||
1244 | if (ocontents == NULL) | |
1245 | { | |
1246 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1247 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1248 | else | |
1249 | { | |
1250 | /* We always cache the section contents. | |
b34976b6 | 1251 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1252 | should free them, if we are permitted to, |
1253 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1254 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1255 | { | |
1256 | if (ocontents != NULL) | |
1257 | free (ocontents); | |
1258 | return FALSE; | |
1259 | } | |
1260 | ||
252b5132 RH |
1261 | elf_section_data (o)->this_hdr.contents = ocontents; |
1262 | } | |
1263 | } | |
1264 | ||
1265 | val = bfd_get_32 (abfd, ocontents + irelscan->r_offset); | |
6cdc0ccc | 1266 | val += isym->st_value; |
252b5132 RH |
1267 | if (val > addr && val < toaddr) |
1268 | bfd_put_32 (abfd, val - count, | |
1269 | ocontents + irelscan->r_offset); | |
1270 | } | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1275 | isymend = isymbuf + symtab_hdr->sh_info; |
1276 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 1277 | { |
6cdc0ccc AM |
1278 | if (isym->st_shndx == sec_shndx |
1279 | && isym->st_value > addr | |
1280 | && isym->st_value < toaddr) | |
1281 | isym->st_value -= count; | |
252b5132 RH |
1282 | } |
1283 | ||
1284 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1285 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1286 | - symtab_hdr->sh_info); | |
1287 | sym_hashes = elf_sym_hashes (abfd); | |
1288 | end_hashes = sym_hashes + symcount; | |
1289 | for (; sym_hashes < end_hashes; sym_hashes++) | |
252b5132 | 1290 | { |
9ad5cbcf AM |
1291 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1292 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1293 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1294 | && sym_hash->root.u.def.section == sec | |
1295 | && sym_hash->root.u.def.value > addr | |
1296 | && sym_hash->root.u.def.value < toaddr) | |
252b5132 | 1297 | { |
9ad5cbcf | 1298 | sym_hash->root.u.def.value -= count; |
252b5132 RH |
1299 | } |
1300 | } | |
1301 | ||
1302 | /* See if we can move the ALIGN reloc forward. We have adjusted | |
1303 | r_offset for it already. */ | |
1304 | if (irelalign != NULL) | |
1305 | { | |
1306 | bfd_vma alignto, alignaddr; | |
1307 | ||
1308 | alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); | |
1309 | alignaddr = BFD_ALIGN (irelalign->r_offset, | |
1310 | 1 << irelalign->r_addend); | |
1311 | if (alignto != alignaddr) | |
1312 | { | |
1313 | /* Tail recursion. */ | |
1314 | return sh_elf_relax_delete_bytes (abfd, sec, alignaddr, | |
dc810e39 | 1315 | (int) (alignto - alignaddr)); |
252b5132 RH |
1316 | } |
1317 | } | |
1318 | ||
b34976b6 | 1319 | return TRUE; |
252b5132 RH |
1320 | } |
1321 | ||
1322 | /* Look for loads and stores which we can align to four byte | |
1323 | boundaries. This is like sh_align_loads in coff-sh.c. */ | |
1324 | ||
b34976b6 | 1325 | static bfd_boolean |
09fd220b KK |
1326 | sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, |
1327 | Elf_Internal_Rela *internal_relocs, | |
1328 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
1329 | bfd_boolean *pswapped) | |
252b5132 RH |
1330 | { |
1331 | Elf_Internal_Rela *irel, *irelend; | |
1332 | bfd_vma *labels = NULL; | |
1333 | bfd_vma *label, *label_end; | |
dc810e39 | 1334 | bfd_size_type amt; |
252b5132 | 1335 | |
b34976b6 | 1336 | *pswapped = FALSE; |
252b5132 RH |
1337 | |
1338 | irelend = internal_relocs + sec->reloc_count; | |
1339 | ||
1340 | /* Get all the addresses with labels on them. */ | |
dc810e39 AM |
1341 | amt = sec->reloc_count; |
1342 | amt *= sizeof (bfd_vma); | |
1343 | labels = (bfd_vma *) bfd_malloc (amt); | |
252b5132 RH |
1344 | if (labels == NULL) |
1345 | goto error_return; | |
1346 | label_end = labels; | |
1347 | for (irel = internal_relocs; irel < irelend; irel++) | |
1348 | { | |
1349 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL) | |
1350 | { | |
1351 | *label_end = irel->r_offset; | |
1352 | ++label_end; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | /* Note that the assembler currently always outputs relocs in | |
1357 | address order. If that ever changes, this code will need to sort | |
1358 | the label values and the relocs. */ | |
1359 | ||
1360 | label = labels; | |
1361 | ||
1362 | for (irel = internal_relocs; irel < irelend; irel++) | |
1363 | { | |
1364 | bfd_vma start, stop; | |
1365 | ||
1366 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE) | |
1367 | continue; | |
1368 | ||
1369 | start = irel->r_offset; | |
1370 | ||
1371 | for (irel++; irel < irelend; irel++) | |
1372 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA) | |
1373 | break; | |
1374 | if (irel < irelend) | |
1375 | stop = irel->r_offset; | |
1376 | else | |
eea6121a | 1377 | stop = sec->size; |
252b5132 RH |
1378 | |
1379 | if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns, | |
09fd220b | 1380 | internal_relocs, &label, |
252b5132 RH |
1381 | label_end, start, stop, pswapped)) |
1382 | goto error_return; | |
1383 | } | |
1384 | ||
1385 | free (labels); | |
1386 | ||
b34976b6 | 1387 | return TRUE; |
252b5132 RH |
1388 | |
1389 | error_return: | |
1390 | if (labels != NULL) | |
1391 | free (labels); | |
b34976b6 | 1392 | return FALSE; |
252b5132 RH |
1393 | } |
1394 | ||
1395 | /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */ | |
1396 | ||
b34976b6 | 1397 | static bfd_boolean |
09fd220b KK |
1398 | sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs, |
1399 | bfd_byte *contents, bfd_vma addr) | |
252b5132 RH |
1400 | { |
1401 | Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs; | |
1402 | unsigned short i1, i2; | |
1403 | Elf_Internal_Rela *irel, *irelend; | |
1404 | ||
1405 | /* Swap the instructions themselves. */ | |
1406 | i1 = bfd_get_16 (abfd, contents + addr); | |
1407 | i2 = bfd_get_16 (abfd, contents + addr + 2); | |
dc810e39 AM |
1408 | bfd_put_16 (abfd, (bfd_vma) i2, contents + addr); |
1409 | bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2); | |
252b5132 RH |
1410 | |
1411 | /* Adjust all reloc addresses. */ | |
1412 | irelend = internal_relocs + sec->reloc_count; | |
1413 | for (irel = internal_relocs; irel < irelend; irel++) | |
1414 | { | |
1415 | enum elf_sh_reloc_type type; | |
1416 | int add; | |
1417 | ||
1418 | /* There are a few special types of relocs that we don't want to | |
067653c5 AM |
1419 | adjust. These relocs do not apply to the instruction itself, |
1420 | but are only associated with the address. */ | |
252b5132 RH |
1421 | type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info); |
1422 | if (type == R_SH_ALIGN | |
1423 | || type == R_SH_CODE | |
1424 | || type == R_SH_DATA | |
1425 | || type == R_SH_LABEL) | |
1426 | continue; | |
1427 | ||
1428 | /* If an R_SH_USES reloc points to one of the addresses being | |
067653c5 AM |
1429 | swapped, we must adjust it. It would be incorrect to do this |
1430 | for a jump, though, since we want to execute both | |
1431 | instructions after the jump. (We have avoided swapping | |
1432 | around a label, so the jump will not wind up executing an | |
1433 | instruction it shouldn't). */ | |
252b5132 RH |
1434 | if (type == R_SH_USES) |
1435 | { | |
1436 | bfd_vma off; | |
1437 | ||
1438 | off = irel->r_offset + 4 + irel->r_addend; | |
1439 | if (off == addr) | |
1440 | irel->r_offset += 2; | |
1441 | else if (off == addr + 2) | |
1442 | irel->r_offset -= 2; | |
1443 | } | |
1444 | ||
1445 | if (irel->r_offset == addr) | |
1446 | { | |
1447 | irel->r_offset += 2; | |
1448 | add = -2; | |
1449 | } | |
1450 | else if (irel->r_offset == addr + 2) | |
1451 | { | |
1452 | irel->r_offset -= 2; | |
1453 | add = 2; | |
1454 | } | |
1455 | else | |
1456 | add = 0; | |
1457 | ||
1458 | if (add != 0) | |
1459 | { | |
1460 | bfd_byte *loc; | |
1461 | unsigned short insn, oinsn; | |
b34976b6 | 1462 | bfd_boolean overflow; |
252b5132 RH |
1463 | |
1464 | loc = contents + irel->r_offset; | |
b34976b6 | 1465 | overflow = FALSE; |
252b5132 RH |
1466 | switch (type) |
1467 | { | |
1468 | default: | |
1469 | break; | |
1470 | ||
1471 | case R_SH_DIR8WPN: | |
1472 | case R_SH_DIR8WPZ: | |
1473 | insn = bfd_get_16 (abfd, loc); | |
1474 | oinsn = insn; | |
1475 | insn += add / 2; | |
1476 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1477 | overflow = TRUE; |
dc810e39 | 1478 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1479 | break; |
1480 | ||
1481 | case R_SH_IND12W: | |
1482 | insn = bfd_get_16 (abfd, loc); | |
1483 | oinsn = insn; | |
1484 | insn += add / 2; | |
1485 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1486 | overflow = TRUE; |
dc810e39 | 1487 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1488 | break; |
1489 | ||
1490 | case R_SH_DIR8WPL: | |
1491 | /* This reloc ignores the least significant 3 bits of | |
067653c5 AM |
1492 | the program counter before adding in the offset. |
1493 | This means that if ADDR is at an even address, the | |
1494 | swap will not affect the offset. If ADDR is an at an | |
1495 | odd address, then the instruction will be crossing a | |
1496 | four byte boundary, and must be adjusted. */ | |
252b5132 RH |
1497 | if ((addr & 3) != 0) |
1498 | { | |
1499 | insn = bfd_get_16 (abfd, loc); | |
1500 | oinsn = insn; | |
1501 | insn += add / 2; | |
1502 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1503 | overflow = TRUE; |
dc810e39 | 1504 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1505 | } |
1506 | ||
1507 | break; | |
1508 | } | |
1509 | ||
1510 | if (overflow) | |
1511 | { | |
4eca0228 | 1512 | _bfd_error_handler |
695344c0 | 1513 | /* xgettext:c-format */ |
2dcf00ce AM |
1514 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), |
1515 | abfd, (uint64_t) irel->r_offset); | |
252b5132 | 1516 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1517 | return FALSE; |
252b5132 RH |
1518 | } |
1519 | } | |
1520 | } | |
1521 | ||
b34976b6 | 1522 | return TRUE; |
252b5132 RH |
1523 | } |
1524 | \f | |
55e6e397 RS |
1525 | /* Describes one of the various PLT styles. */ |
1526 | ||
1527 | struct elf_sh_plt_info | |
1528 | { | |
1529 | /* The template for the first PLT entry, or NULL if there is no special | |
1530 | first entry. */ | |
1531 | const bfd_byte *plt0_entry; | |
1532 | ||
1533 | /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */ | |
1534 | bfd_vma plt0_entry_size; | |
1535 | ||
1536 | /* Index I is the offset into PLT0_ENTRY of a pointer to | |
1537 | _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE | |
1538 | if there is no such pointer. */ | |
1539 | bfd_vma plt0_got_fields[3]; | |
1540 | ||
1541 | /* The template for a symbol's PLT entry. */ | |
1542 | const bfd_byte *symbol_entry; | |
1543 | ||
1544 | /* The size of SYMBOL_ENTRY in bytes. */ | |
1545 | bfd_vma symbol_entry_size; | |
1546 | ||
1547 | /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used | |
1548 | on all targets. The comments by each member indicate the value | |
1549 | that the field must hold. */ | |
1550 | struct { | |
1551 | bfd_vma got_entry; /* the address of the symbol's .got.plt entry */ | |
1552 | bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */ | |
1553 | bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */ | |
8e45593f NC |
1554 | bfd_boolean got20; /* TRUE if got_entry points to a movi20 |
1555 | instruction (instead of a constant pool | |
1556 | entry). */ | |
55e6e397 RS |
1557 | } symbol_fields; |
1558 | ||
1559 | /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */ | |
1560 | bfd_vma symbol_resolve_offset; | |
8e45593f NC |
1561 | |
1562 | /* A different PLT layout which can be used for the first | |
1563 | MAX_SHORT_PLT entries. It must share the same plt0. NULL in | |
1564 | other cases. */ | |
1565 | const struct elf_sh_plt_info *short_plt; | |
55e6e397 RS |
1566 | }; |
1567 | ||
37c644f2 | 1568 | /* The size in bytes of an entry in the procedure linkage table. */ |
252b5132 | 1569 | |
55e6e397 | 1570 | #define ELF_PLT_ENTRY_SIZE 28 |
37c644f2 AO |
1571 | |
1572 | /* First entry in an absolute procedure linkage table look like this. */ | |
1573 | ||
6c426cf3 | 1574 | /* Note - this code has been "optimised" not to use r2. r2 is used by |
4cc11e76 | 1575 | GCC to return the address of large structures, so it should not be |
6c426cf3 NC |
1576 | corrupted here. This does mean however, that this PLT does not conform |
1577 | to the SH PIC ABI. That spec says that r0 contains the type of the PLT | |
1578 | and r2 contains the GOT id. This version stores the GOT id in r0 and | |
1579 | ignores the type. Loaders can easily detect this difference however, | |
1580 | since the type will always be 0 or 8, and the GOT ids will always be | |
1581 | greater than or equal to 12. */ | |
55e6e397 | 1582 | static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1583 | { |
1584 | 0xd0, 0x05, /* mov.l 2f,r0 */ | |
1585 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1586 | 0x2f, 0x06, /* mov.l r0,@-r15 */ | |
1587 | 0xd0, 0x03, /* mov.l 1f,r0 */ | |
1588 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1589 | 0x40, 0x2b, /* jmp @r0 */ | |
1590 | 0x60, 0xf6, /* mov.l @r15+,r0 */ | |
1591 | 0x00, 0x09, /* nop */ | |
1592 | 0x00, 0x09, /* nop */ | |
1593 | 0x00, 0x09, /* nop */ | |
1594 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1595 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1596 | }; | |
1597 | ||
55e6e397 | 1598 | static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1599 | { |
1600 | 0x05, 0xd0, /* mov.l 2f,r0 */ | |
1601 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1602 | 0x06, 0x2f, /* mov.l r0,@-r15 */ | |
1603 | 0x03, 0xd0, /* mov.l 1f,r0 */ | |
1604 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1605 | 0x2b, 0x40, /* jmp @r0 */ | |
1606 | 0xf6, 0x60, /* mov.l @r15+,r0 */ | |
1607 | 0x09, 0x00, /* nop */ | |
1608 | 0x09, 0x00, /* nop */ | |
1609 | 0x09, 0x00, /* nop */ | |
1610 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1611 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1612 | }; | |
1613 | ||
1614 | /* Sebsequent entries in an absolute procedure linkage table look like | |
1615 | this. */ | |
1616 | ||
55e6e397 | 1617 | static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1618 | { |
1619 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
55e6e397 | 1620 | 0x60, 0x02, /* mov.l @(r0,r12),r0 */ |
6c426cf3 NC |
1621 | 0xd1, 0x02, /* mov.l 0f,r1 */ |
1622 | 0x40, 0x2b, /* jmp @r0 */ | |
1623 | 0x60, 0x13, /* mov r1,r0 */ | |
1624 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1625 | 0x40, 0x2b, /* jmp @r0 */ | |
1626 | 0x00, 0x09, /* nop */ | |
1627 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1628 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1629 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1630 | }; | |
1631 | ||
55e6e397 | 1632 | static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1633 | { |
1634 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1635 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1636 | 0x02, 0xd1, /* mov.l 0f,r1 */ | |
1637 | 0x2b, 0x40, /* jmp @r0 */ | |
1638 | 0x13, 0x60, /* mov r1,r0 */ | |
1639 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1640 | 0x2b, 0x40, /* jmp @r0 */ | |
1641 | 0x09, 0x00, /* nop */ | |
1642 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1643 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1644 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1645 | }; | |
1646 | ||
1647 | /* Entries in a PIC procedure linkage table look like this. */ | |
1648 | ||
55e6e397 | 1649 | static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1650 | { |
1651 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
1652 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1653 | 0x40, 0x2b, /* jmp @r0 */ | |
1654 | 0x00, 0x09, /* nop */ | |
1655 | 0x50, 0xc2, /* mov.l @(8,r12),r0 */ | |
1656 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1657 | 0x40, 0x2b, /* jmp @r0 */ | |
1658 | 0x50, 0xc1, /* mov.l @(4,r12),r0 */ | |
1659 | 0x00, 0x09, /* nop */ | |
1660 | 0x00, 0x09, /* nop */ | |
1661 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1662 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1663 | }; | |
1664 | ||
55e6e397 | 1665 | static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1666 | { |
1667 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1668 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
1669 | 0x2b, 0x40, /* jmp @r0 */ | |
1670 | 0x09, 0x00, /* nop */ | |
1671 | 0xc2, 0x50, /* mov.l @(8,r12),r0 */ | |
1672 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1673 | 0x2b, 0x40, /* jmp @r0 */ | |
1674 | 0xc1, 0x50, /* mov.l @(4,r12),r0 */ | |
1675 | 0x09, 0x00, /* nop */ | |
1676 | 0x09, 0x00, /* nop */ | |
1677 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1678 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1679 | }; | |
1680 | ||
55e6e397 RS |
1681 | static const struct elf_sh_plt_info elf_sh_plts[2][2] = { |
1682 | { | |
1683 | { | |
1684 | /* Big-endian non-PIC. */ | |
1685 | elf_sh_plt0_entry_be, | |
1686 | ELF_PLT_ENTRY_SIZE, | |
1687 | { MINUS_ONE, 24, 20 }, | |
1688 | elf_sh_plt_entry_be, | |
1689 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1690 | { 20, 16, 24, FALSE }, |
1691 | 8, | |
1692 | NULL | |
55e6e397 RS |
1693 | }, |
1694 | { | |
1695 | /* Little-endian non-PIC. */ | |
1696 | elf_sh_plt0_entry_le, | |
1697 | ELF_PLT_ENTRY_SIZE, | |
1698 | { MINUS_ONE, 24, 20 }, | |
1699 | elf_sh_plt_entry_le, | |
1700 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1701 | { 20, 16, 24, FALSE }, |
1702 | 8, | |
1703 | NULL | |
55e6e397 RS |
1704 | }, |
1705 | }, | |
1706 | { | |
1707 | { | |
1708 | /* Big-endian PIC. */ | |
1709 | elf_sh_plt0_entry_be, | |
1710 | ELF_PLT_ENTRY_SIZE, | |
1711 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1712 | elf_sh_pic_plt_entry_be, | |
1713 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1714 | { 20, MINUS_ONE, 24, FALSE }, |
1715 | 8, | |
1716 | NULL | |
55e6e397 RS |
1717 | }, |
1718 | { | |
1719 | /* Little-endian PIC. */ | |
1720 | elf_sh_plt0_entry_le, | |
1721 | ELF_PLT_ENTRY_SIZE, | |
1722 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1723 | elf_sh_pic_plt_entry_le, | |
1724 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1725 | { 20, MINUS_ONE, 24, FALSE }, |
1726 | 8, | |
1727 | NULL | |
55e6e397 RS |
1728 | }, |
1729 | } | |
1730 | }; | |
252b5132 | 1731 | |
55e6e397 RS |
1732 | #define VXWORKS_PLT_HEADER_SIZE 12 |
1733 | #define VXWORKS_PLT_ENTRY_SIZE 24 | |
252b5132 | 1734 | |
55e6e397 RS |
1735 | static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] = |
1736 | { | |
1737 | 0xd1, 0x01, /* mov.l @(8,pc),r1 */ | |
1738 | 0x61, 0x12, /* mov.l @r1,r1 */ | |
1739 | 0x41, 0x2b, /* jmp @r1 */ | |
1740 | 0x00, 0x09, /* nop */ | |
1741 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1742 | }; | |
252b5132 | 1743 | |
55e6e397 RS |
1744 | static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] = |
1745 | { | |
1746 | 0x01, 0xd1, /* mov.l @(8,pc),r1 */ | |
1747 | 0x12, 0x61, /* mov.l @r1,r1 */ | |
1748 | 0x2b, 0x41, /* jmp @r1 */ | |
1749 | 0x09, 0x00, /* nop */ | |
1750 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1751 | }; | |
1752 | ||
1753 | static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1754 | { | |
1755 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1756 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1757 | 0x40, 0x2b, /* jmp @r0 */ | |
1758 | 0x00, 0x09, /* nop */ | |
1759 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1760 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1761 | 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */ | |
1762 | 0x00, 0x09, /* nop */ | |
1763 | 0x00, 0x09, /* nop */ | |
1764 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1765 | }; | |
1766 | ||
1767 | static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1768 | { | |
1769 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1770 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1771 | 0x2b, 0x40, /* jmp @r0 */ | |
1772 | 0x09, 0x00, /* nop */ | |
1773 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1774 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1775 | 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */ | |
1776 | 0x09, 0x00, /* nop */ | |
1777 | 0x09, 0x00, /* nop */ | |
1778 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1779 | }; | |
1780 | ||
1781 | static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1782 | { | |
1783 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1784 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1785 | 0x40, 0x2b, /* jmp @r0 */ | |
1786 | 0x00, 0x09, /* nop */ | |
1787 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
1788 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1789 | 0x51, 0xc2, /* mov.l @(8,r12),r1 */ | |
1790 | 0x41, 0x2b, /* jmp @r1 */ | |
1791 | 0x00, 0x09, /* nop */ | |
1792 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1793 | }; | |
1794 | ||
1795 | static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1796 | { | |
1797 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1798 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
1799 | 0x2b, 0x40, /* jmp @r0 */ | |
1800 | 0x09, 0x00, /* nop */ | |
1801 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
1802 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1803 | 0xc2, 0x51, /* mov.l @(8,r12),r1 */ | |
1804 | 0x2b, 0x41, /* jmp @r1 */ | |
1805 | 0x09, 0x00, /* nop */ | |
1806 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1807 | }; | |
1808 | ||
1809 | static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = { | |
1810 | { | |
1811 | { | |
1812 | /* Big-endian non-PIC. */ | |
1813 | vxworks_sh_plt0_entry_be, | |
1814 | VXWORKS_PLT_HEADER_SIZE, | |
1815 | { MINUS_ONE, MINUS_ONE, 8 }, | |
1816 | vxworks_sh_plt_entry_be, | |
1817 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1818 | { 8, 14, 20, FALSE }, |
1819 | 12, | |
1820 | NULL | |
55e6e397 RS |
1821 | }, |
1822 | { | |
1823 | /* Little-endian non-PIC. */ | |
1824 | vxworks_sh_plt0_entry_le, | |
1825 | VXWORKS_PLT_HEADER_SIZE, | |
1826 | { MINUS_ONE, MINUS_ONE, 8 }, | |
1827 | vxworks_sh_plt_entry_le, | |
1828 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1829 | { 8, 14, 20, FALSE }, |
1830 | 12, | |
1831 | NULL | |
55e6e397 RS |
1832 | }, |
1833 | }, | |
1834 | { | |
1835 | { | |
1836 | /* Big-endian PIC. */ | |
1837 | NULL, | |
1838 | 0, | |
1839 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1840 | vxworks_sh_pic_plt_entry_be, | |
1841 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1842 | { 8, MINUS_ONE, 20, FALSE }, |
1843 | 12, | |
1844 | NULL | |
55e6e397 RS |
1845 | }, |
1846 | { | |
1847 | /* Little-endian PIC. */ | |
1848 | NULL, | |
1849 | 0, | |
1850 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1851 | vxworks_sh_pic_plt_entry_le, | |
1852 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1853 | { 8, MINUS_ONE, 20, FALSE }, |
1854 | 12, | |
1855 | NULL | |
55e6e397 RS |
1856 | }, |
1857 | } | |
1858 | }; | |
9bdafcce | 1859 | |
8e45593f NC |
1860 | /* FDPIC PLT entries. Two unimplemented optimizations for lazy |
1861 | binding are to omit the lazy binding stub when linking with -z now | |
1862 | and to move lazy binding stubs into a separate region for better | |
1863 | cache behavior. */ | |
1864 | ||
1865 | #define FDPIC_PLT_ENTRY_SIZE 28 | |
1866 | #define FDPIC_PLT_LAZY_OFFSET 20 | |
1867 | ||
1868 | /* FIXME: The lazy binding stub requires a plt0 - which may need to be | |
1869 | duplicated if it is out of range, or which can be inlined. So | |
1870 | right now it is always inlined, which wastes a word per stub. It | |
1871 | might be easier to handle the duplication if we put the lazy | |
1872 | stubs separately. */ | |
1873 | ||
1874 | static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] = | |
1875 | { | |
1876 | 0xd0, 0x02, /* mov.l @(12,pc),r0 */ | |
1877 | 0x01, 0xce, /* mov.l @(r0,r12),r1 */ | |
1878 | 0x70, 0x04, /* add #4, r0 */ | |
1879 | 0x41, 0x2b, /* jmp @r1 */ | |
1880 | 0x0c, 0xce, /* mov.l @(r0,r12),r12 */ | |
1881 | 0x00, 0x09, /* nop */ | |
1882 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */ | |
1883 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1884 | 0x60, 0xc2, /* mov.l @r12,r0 */ | |
1885 | 0x40, 0x2b, /* jmp @r0 */ | |
1886 | 0x53, 0xc1, /* mov.l @(4,r12),r3 */ | |
1887 | 0x00, 0x09, /* nop */ | |
1888 | }; | |
1889 | ||
1890 | static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] = | |
1891 | { | |
1892 | 0x02, 0xd0, /* mov.l @(12,pc),r0 */ | |
1893 | 0xce, 0x01, /* mov.l @(r0,r12),r1 */ | |
1894 | 0x04, 0x70, /* add #4, r0 */ | |
1895 | 0x2b, 0x41, /* jmp @r1 */ | |
1896 | 0xce, 0x0c, /* mov.l @(r0,r12),r12 */ | |
1897 | 0x09, 0x00, /* nop */ | |
1898 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */ | |
1899 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1900 | 0xc2, 0x60, /* mov.l @r12,r0 */ | |
1901 | 0x2b, 0x40, /* jmp @r0 */ | |
1902 | 0xc1, 0x53, /* mov.l @(4,r12),r3 */ | |
1903 | 0x09, 0x00, /* nop */ | |
1904 | }; | |
1905 | ||
1906 | static const struct elf_sh_plt_info fdpic_sh_plts[2] = { | |
1907 | { | |
1908 | /* Big-endian PIC. */ | |
1909 | NULL, | |
1910 | 0, | |
1911 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1912 | fdpic_sh_plt_entry_be, | |
1913 | FDPIC_PLT_ENTRY_SIZE, | |
1914 | { 12, MINUS_ONE, 16, FALSE }, | |
1915 | FDPIC_PLT_LAZY_OFFSET, | |
1916 | NULL | |
1917 | }, | |
1918 | { | |
1919 | /* Little-endian PIC. */ | |
1920 | NULL, | |
1921 | 0, | |
1922 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1923 | fdpic_sh_plt_entry_le, | |
1924 | FDPIC_PLT_ENTRY_SIZE, | |
1925 | { 12, MINUS_ONE, 16, FALSE }, | |
1926 | FDPIC_PLT_LAZY_OFFSET, | |
1927 | NULL | |
1928 | }, | |
1929 | }; | |
1930 | ||
1931 | /* On SH2A, we can use the movi20 instruction to generate shorter PLT | |
1932 | entries for the first 64K slots. We use the normal FDPIC PLT entry | |
1933 | past that point; we could also use movi20s, which might be faster, | |
1934 | but would not be any smaller. */ | |
1935 | ||
1936 | #define FDPIC_SH2A_PLT_ENTRY_SIZE 24 | |
1937 | #define FDPIC_SH2A_PLT_LAZY_OFFSET 16 | |
1938 | ||
1939 | static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] = | |
1940 | { | |
1941 | 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */ | |
1942 | 0x01, 0xce, /* mov.l @(r0,r12),r1 */ | |
1943 | 0x70, 0x04, /* add #4, r0 */ | |
1944 | 0x41, 0x2b, /* jmp @r1 */ | |
1945 | 0x0c, 0xce, /* mov.l @(r0,r12),r12 */ | |
1946 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1947 | 0x60, 0xc2, /* mov.l @r12,r0 */ | |
1948 | 0x40, 0x2b, /* jmp @r0 */ | |
1949 | 0x53, 0xc1, /* mov.l @(4,r12),r3 */ | |
1950 | 0x00, 0x09, /* nop */ | |
1951 | }; | |
1952 | ||
1953 | static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] = | |
1954 | { | |
1955 | 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */ | |
1956 | 0xce, 0x01, /* mov.l @(r0,r12),r1 */ | |
1957 | 0x04, 0x70, /* add #4, r0 */ | |
1958 | 0x2b, 0x41, /* jmp @r1 */ | |
1959 | 0xce, 0x0c, /* mov.l @(r0,r12),r12 */ | |
1960 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1961 | 0xc2, 0x60, /* mov.l @r12,r0 */ | |
1962 | 0x2b, 0x40, /* jmp @r0 */ | |
1963 | 0xc1, 0x53, /* mov.l @(4,r12),r3 */ | |
1964 | 0x09, 0x00, /* nop */ | |
1965 | }; | |
1966 | ||
1967 | static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = { | |
1968 | /* Big-endian FDPIC, max index 64K. */ | |
1969 | NULL, | |
1970 | 0, | |
1971 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1972 | fdpic_sh2a_plt_entry_be, | |
1973 | FDPIC_SH2A_PLT_ENTRY_SIZE, | |
1974 | { 0, MINUS_ONE, 12, TRUE }, | |
1975 | FDPIC_SH2A_PLT_LAZY_OFFSET, | |
1976 | NULL | |
1977 | }; | |
1978 | ||
1979 | static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = { | |
1980 | /* Little-endian FDPIC, max index 64K. */ | |
1981 | NULL, | |
1982 | 0, | |
1983 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1984 | fdpic_sh2a_plt_entry_le, | |
1985 | FDPIC_SH2A_PLT_ENTRY_SIZE, | |
1986 | { 0, MINUS_ONE, 12, TRUE }, | |
1987 | FDPIC_SH2A_PLT_LAZY_OFFSET, | |
1988 | NULL | |
1989 | }; | |
1990 | ||
1991 | static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = { | |
1992 | { | |
1993 | /* Big-endian PIC. */ | |
1994 | NULL, | |
1995 | 0, | |
1996 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1997 | fdpic_sh_plt_entry_be, | |
1998 | FDPIC_PLT_ENTRY_SIZE, | |
1999 | { 12, MINUS_ONE, 16, FALSE }, | |
2000 | FDPIC_PLT_LAZY_OFFSET, | |
2001 | &fdpic_sh2a_short_plt_be | |
2002 | }, | |
2003 | { | |
2004 | /* Little-endian PIC. */ | |
2005 | NULL, | |
2006 | 0, | |
2007 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
2008 | fdpic_sh_plt_entry_le, | |
2009 | FDPIC_PLT_ENTRY_SIZE, | |
2010 | { 12, MINUS_ONE, 16, FALSE }, | |
2011 | FDPIC_PLT_LAZY_OFFSET, | |
2012 | &fdpic_sh2a_short_plt_le | |
2013 | }, | |
2014 | }; | |
2015 | ||
55e6e397 RS |
2016 | /* Return the type of PLT associated with ABFD. PIC_P is true if |
2017 | the object is position-independent. */ | |
9bdafcce | 2018 | |
55e6e397 | 2019 | static const struct elf_sh_plt_info * |
8e45593f | 2020 | get_plt_info (bfd *abfd, bfd_boolean pic_p) |
55e6e397 | 2021 | { |
8e45593f NC |
2022 | if (fdpic_object_p (abfd)) |
2023 | { | |
2024 | /* If any input file requires SH2A we can use a shorter PLT | |
2025 | sequence. */ | |
2026 | if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base) | |
2027 | return &fdpic_sh2a_plts[!bfd_big_endian (abfd)]; | |
2028 | else | |
2029 | return &fdpic_sh_plts[!bfd_big_endian (abfd)]; | |
2030 | } | |
55e6e397 RS |
2031 | if (vxworks_object_p (abfd)) |
2032 | return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2033 | return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2034 | } | |
9bdafcce | 2035 | |
55e6e397 RS |
2036 | /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD. |
2037 | VALUE is the field's value and CODE_P is true if VALUE refers to code, | |
2038 | not data. */ | |
9bdafcce | 2039 | |
55e6e397 RS |
2040 | inline static void |
2041 | install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED, | |
2042 | unsigned long value, bfd_byte *addr) | |
2043 | { | |
2044 | bfd_put_32 (output_bfd, value, addr); | |
2045 | } | |
015551fc | 2046 | |
8e45593f NC |
2047 | /* The number of PLT entries which can use a shorter PLT, if any. |
2048 | Currently always 64K, since only SH-2A FDPIC uses this; a | |
2049 | 20-bit movi20 can address that many function descriptors below | |
2050 | _GLOBAL_OFFSET_TABLE_. */ | |
2051 | #define MAX_SHORT_PLT 65536 | |
2052 | ||
55e6e397 RS |
2053 | /* Return the index of the PLT entry at byte offset OFFSET. */ |
2054 | ||
2055 | static bfd_vma | |
2056 | get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset) | |
2057 | { | |
8e45593f NC |
2058 | bfd_vma plt_index = 0; |
2059 | ||
2060 | offset -= info->plt0_entry_size; | |
2061 | if (info->short_plt != NULL) | |
2062 | { | |
2063 | if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size) | |
2064 | { | |
2065 | plt_index = MAX_SHORT_PLT; | |
2066 | offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size; | |
2067 | } | |
2068 | else | |
2069 | info = info->short_plt; | |
2070 | } | |
2071 | return plt_index + offset / info->symbol_entry_size; | |
55e6e397 RS |
2072 | } |
2073 | ||
2074 | /* Do the inverse operation. */ | |
2075 | ||
2076 | static bfd_vma | |
91d6fa6a | 2077 | get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index) |
55e6e397 | 2078 | { |
8e45593f NC |
2079 | bfd_vma offset = 0; |
2080 | ||
2081 | if (info->short_plt != NULL) | |
2082 | { | |
2083 | if (plt_index > MAX_SHORT_PLT) | |
2084 | { | |
2085 | offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size; | |
2086 | plt_index -= MAX_SHORT_PLT; | |
2087 | } | |
2088 | else | |
2089 | info = info->short_plt; | |
2090 | } | |
2091 | return (offset + info->plt0_entry_size | |
2092 | + (plt_index * info->symbol_entry_size)); | |
55e6e397 RS |
2093 | } |
2094 | ||
8e45593f NC |
2095 | union gotref |
2096 | { | |
2097 | bfd_signed_vma refcount; | |
2098 | bfd_vma offset; | |
2099 | }; | |
2100 | ||
37c644f2 AO |
2101 | /* sh ELF linker hash entry. */ |
2102 | ||
38b1a46c NC |
2103 | struct elf_sh_link_hash_entry |
2104 | { | |
37c644f2 AO |
2105 | struct elf_link_hash_entry root; |
2106 | ||
067653c5 | 2107 | /* Track dynamic relocs copied for this symbol. */ |
3bf083ed | 2108 | struct elf_dyn_relocs *dyn_relocs; |
4989d792 SC |
2109 | |
2110 | bfd_signed_vma gotplt_refcount; | |
3376eaf5 | 2111 | |
8e45593f NC |
2112 | /* A local function descriptor, for FDPIC. The refcount counts |
2113 | R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20 | |
2114 | relocations; the PLT and GOT entry are accounted | |
2115 | for separately. After adjust_dynamic_symbol, the offset is | |
2116 | MINUS_ONE if there is no local descriptor (dynamic linker | |
2117 | managed and no PLT entry, or undefined weak non-dynamic). | |
2118 | During check_relocs we do not yet know whether the local | |
2119 | descriptor will be canonical. */ | |
2120 | union gotref funcdesc; | |
2121 | ||
2122 | /* How many of the above refcounted relocations were R_SH_FUNCDESC, | |
2123 | and thus require fixups or relocations. */ | |
2124 | bfd_signed_vma abs_funcdesc_refcount; | |
2125 | ||
85e02784 | 2126 | enum got_type { |
8e45593f NC |
2127 | GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC |
2128 | } got_type; | |
3376eaf5 KK |
2129 | }; |
2130 | ||
2131 | #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent)) | |
2132 | ||
2133 | struct sh_elf_obj_tdata | |
2134 | { | |
2135 | struct elf_obj_tdata root; | |
2136 | ||
8e45593f NC |
2137 | /* got_type for each local got entry. */ |
2138 | char *local_got_type; | |
2139 | ||
2140 | /* Function descriptor refcount and offset for each local symbol. */ | |
2141 | union gotref *local_funcdesc; | |
37c644f2 AO |
2142 | }; |
2143 | ||
3376eaf5 KK |
2144 | #define sh_elf_tdata(abfd) \ |
2145 | ((struct sh_elf_obj_tdata *) (abfd)->tdata.any) | |
2146 | ||
8e45593f NC |
2147 | #define sh_elf_local_got_type(abfd) \ |
2148 | (sh_elf_tdata (abfd)->local_got_type) | |
2149 | ||
2150 | #define sh_elf_local_funcdesc(abfd) \ | |
2151 | (sh_elf_tdata (abfd)->local_funcdesc) | |
3376eaf5 | 2152 | |
0ffa91dd NC |
2153 | #define is_sh_elf(bfd) \ |
2154 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
2155 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 2156 | && elf_object_id (bfd) == SH_ELF_DATA) |
0ffa91dd | 2157 | |
3376eaf5 KK |
2158 | /* Override the generic function because we need to store sh_elf_obj_tdata |
2159 | as the specific tdata. */ | |
2160 | ||
b34976b6 | 2161 | static bfd_boolean |
09fd220b | 2162 | sh_elf_mkobject (bfd *abfd) |
3376eaf5 | 2163 | { |
0ffa91dd | 2164 | return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata), |
4dfe6ac6 | 2165 | SH_ELF_DATA); |
3376eaf5 | 2166 | } |
b34976b6 | 2167 | |
37c644f2 AO |
2168 | /* sh ELF linker hash table. */ |
2169 | ||
38b1a46c NC |
2170 | struct elf_sh_link_hash_table |
2171 | { | |
37c644f2 | 2172 | struct elf_link_hash_table root; |
37c644f2 | 2173 | |
067653c5 | 2174 | /* Short-cuts to get to dynamic linker sections. */ |
067653c5 AM |
2175 | asection *sdynbss; |
2176 | asection *srelbss; | |
8e45593f NC |
2177 | asection *sfuncdesc; |
2178 | asection *srelfuncdesc; | |
2179 | asection *srofixup; | |
37c644f2 | 2180 | |
55e6e397 RS |
2181 | /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */ |
2182 | asection *srelplt2; | |
2183 | ||
87d72d41 AM |
2184 | /* Small local sym cache. */ |
2185 | struct sym_cache sym_cache; | |
3376eaf5 KK |
2186 | |
2187 | /* A counter or offset to track a TLS got entry. */ | |
2188 | union | |
2189 | { | |
2190 | bfd_signed_vma refcount; | |
2191 | bfd_vma offset; | |
2192 | } tls_ldm_got; | |
55e6e397 RS |
2193 | |
2194 | /* The type of PLT to use. */ | |
2195 | const struct elf_sh_plt_info *plt_info; | |
2196 | ||
2197 | /* True if the target system is VxWorks. */ | |
2198 | bfd_boolean vxworks_p; | |
8e45593f NC |
2199 | |
2200 | /* True if the target system uses FDPIC. */ | |
2201 | bfd_boolean fdpic_p; | |
067653c5 | 2202 | }; |
37c644f2 AO |
2203 | |
2204 | /* Traverse an sh ELF linker hash table. */ | |
2205 | ||
2206 | #define sh_elf_link_hash_traverse(table, func, info) \ | |
2207 | (elf_link_hash_traverse \ | |
2208 | (&(table)->root, \ | |
09fd220b | 2209 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
37c644f2 AO |
2210 | (info))) |
2211 | ||
2212 | /* Get the sh ELF linker hash table from a link_info structure. */ | |
2213 | ||
2214 | #define sh_elf_hash_table(p) \ | |
4dfe6ac6 NC |
2215 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
2216 | == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL) | |
37c644f2 AO |
2217 | |
2218 | /* Create an entry in an sh ELF linker hash table. */ | |
2219 | ||
2220 | static struct bfd_hash_entry * | |
09fd220b KK |
2221 | sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
2222 | struct bfd_hash_table *table, | |
2223 | const char *string) | |
37c644f2 AO |
2224 | { |
2225 | struct elf_sh_link_hash_entry *ret = | |
2226 | (struct elf_sh_link_hash_entry *) entry; | |
2227 | ||
2228 | /* Allocate the structure if it has not already been allocated by a | |
2229 | subclass. */ | |
2230 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2231 | ret = ((struct elf_sh_link_hash_entry *) | |
2232 | bfd_hash_allocate (table, | |
2233 | sizeof (struct elf_sh_link_hash_entry))); | |
2234 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2235 | return (struct bfd_hash_entry *) ret; | |
2236 | ||
2237 | /* Call the allocation method of the superclass. */ | |
2238 | ret = ((struct elf_sh_link_hash_entry *) | |
2239 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
2240 | table, string)); | |
2241 | if (ret != (struct elf_sh_link_hash_entry *) NULL) | |
2242 | { | |
396a6083 SC |
2243 | ret->dyn_relocs = NULL; |
2244 | ret->gotplt_refcount = 0; | |
8e45593f NC |
2245 | ret->funcdesc.refcount = 0; |
2246 | ret->abs_funcdesc_refcount = 0; | |
2247 | ret->got_type = GOT_UNKNOWN; | |
37c644f2 AO |
2248 | } |
2249 | ||
2250 | return (struct bfd_hash_entry *) ret; | |
2251 | } | |
2252 | ||
2253 | /* Create an sh ELF linker hash table. */ | |
2254 | ||
2255 | static struct bfd_link_hash_table * | |
09fd220b | 2256 | sh_elf_link_hash_table_create (bfd *abfd) |
37c644f2 AO |
2257 | { |
2258 | struct elf_sh_link_hash_table *ret; | |
986f0783 | 2259 | size_t amt = sizeof (struct elf_sh_link_hash_table); |
37c644f2 | 2260 | |
0e5de31a | 2261 | ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt); |
37c644f2 AO |
2262 | if (ret == (struct elf_sh_link_hash_table *) NULL) |
2263 | return NULL; | |
2264 | ||
66eb6687 AM |
2265 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
2266 | sh_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
2267 | sizeof (struct elf_sh_link_hash_entry), |
2268 | SH_ELF_DATA)) | |
37c644f2 | 2269 | { |
e2d34d7d | 2270 | free (ret); |
37c644f2 AO |
2271 | return NULL; |
2272 | } | |
2273 | ||
55e6e397 | 2274 | ret->vxworks_p = vxworks_object_p (abfd); |
8e45593f | 2275 | ret->fdpic_p = fdpic_object_p (abfd); |
067653c5 | 2276 | |
37c644f2 AO |
2277 | return &ret->root.root; |
2278 | } | |
2279 | ||
8e45593f NC |
2280 | static bfd_boolean |
2281 | sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2282 | struct bfd_link_info *info, asection *p) | |
2283 | { | |
2284 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
2285 | ||
2286 | /* Non-FDPIC binaries do not need dynamic symbols for sections. */ | |
2287 | if (!htab->fdpic_p) | |
2288 | return TRUE; | |
2289 | ||
2290 | /* We need dynamic symbols for every section, since segments can | |
2291 | relocate independently. */ | |
2292 | switch (elf_section_data (p)->this_hdr.sh_type) | |
2293 | { | |
2294 | case SHT_PROGBITS: | |
2295 | case SHT_NOBITS: | |
2296 | /* If sh_type is yet undecided, assume it could be | |
2297 | SHT_PROGBITS/SHT_NOBITS. */ | |
2298 | case SHT_NULL: | |
2299 | return FALSE; | |
2300 | ||
2301 | /* There shouldn't be section relative relocations | |
2302 | against any other section. */ | |
2303 | default: | |
2304 | return TRUE; | |
2305 | } | |
2306 | } | |
2307 | ||
067653c5 AM |
2308 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
2309 | shortcuts to them in our hash table. */ | |
2310 | ||
b34976b6 | 2311 | static bfd_boolean |
09fd220b | 2312 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
067653c5 AM |
2313 | { |
2314 | struct elf_sh_link_hash_table *htab; | |
2315 | ||
2316 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 2317 | return FALSE; |
067653c5 AM |
2318 | |
2319 | htab = sh_elf_hash_table (info); | |
4dfe6ac6 NC |
2320 | if (htab == NULL) |
2321 | return FALSE; | |
2322 | ||
3d4d4302 AM |
2323 | htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc", |
2324 | (SEC_ALLOC | SEC_LOAD | |
2325 | | SEC_HAS_CONTENTS | |
2326 | | SEC_IN_MEMORY | |
2327 | | SEC_LINKER_CREATED)); | |
8e45593f | 2328 | if (htab->sfuncdesc == NULL |
fd361982 | 2329 | || !bfd_set_section_alignment (htab->sfuncdesc, 2)) |
8e45593f NC |
2330 | return FALSE; |
2331 | ||
3d4d4302 AM |
2332 | htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj, |
2333 | ".rela.got.funcdesc", | |
2334 | (SEC_ALLOC | SEC_LOAD | |
2335 | | SEC_HAS_CONTENTS | |
2336 | | SEC_IN_MEMORY | |
2337 | | SEC_LINKER_CREATED | |
2338 | | SEC_READONLY)); | |
8e45593f | 2339 | if (htab->srelfuncdesc == NULL |
fd361982 | 2340 | || !bfd_set_section_alignment (htab->srelfuncdesc, 2)) |
8e45593f NC |
2341 | return FALSE; |
2342 | ||
2343 | /* Also create .rofixup. */ | |
3d4d4302 AM |
2344 | htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup", |
2345 | (SEC_ALLOC | SEC_LOAD | |
2346 | | SEC_HAS_CONTENTS | |
2347 | | SEC_IN_MEMORY | |
2348 | | SEC_LINKER_CREATED | |
2349 | | SEC_READONLY)); | |
8e45593f | 2350 | if (htab->srofixup == NULL |
fd361982 | 2351 | || !bfd_set_section_alignment (htab->srofixup, 2)) |
8e45593f NC |
2352 | return FALSE; |
2353 | ||
b34976b6 | 2354 | return TRUE; |
067653c5 AM |
2355 | } |
2356 | ||
37c644f2 AO |
2357 | /* Create dynamic sections when linking against a dynamic object. */ |
2358 | ||
b34976b6 | 2359 | static bfd_boolean |
09fd220b | 2360 | sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
37c644f2 | 2361 | { |
067653c5 | 2362 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 2363 | flagword flags, pltflags; |
91d6fa6a | 2364 | asection *s; |
9c5bfbb7 | 2365 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
37c644f2 AO |
2366 | int ptralign = 0; |
2367 | ||
2368 | switch (bed->s->arch_size) | |
2369 | { | |
2370 | case 32: | |
2371 | ptralign = 2; | |
2372 | break; | |
2373 | ||
2374 | case 64: | |
2375 | ptralign = 3; | |
2376 | break; | |
2377 | ||
2378 | default: | |
2379 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2380 | return FALSE; |
37c644f2 AO |
2381 | } |
2382 | ||
067653c5 | 2383 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
2384 | if (htab == NULL) |
2385 | return FALSE; | |
2386 | ||
35cad4c4 KK |
2387 | if (htab->root.dynamic_sections_created) |
2388 | return TRUE; | |
067653c5 | 2389 | |
37c644f2 AO |
2390 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and |
2391 | .rel[a].bss sections. */ | |
2392 | ||
2393 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2394 | | SEC_LINKER_CREATED); | |
2395 | ||
2396 | pltflags = flags; | |
2397 | pltflags |= SEC_CODE; | |
2398 | if (bed->plt_not_loaded) | |
2399 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
2400 | if (bed->plt_readonly) | |
2401 | pltflags |= SEC_READONLY; | |
2402 | ||
3d4d4302 | 2403 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
ce558b89 | 2404 | htab->root.splt = s; |
35cad4c4 | 2405 | if (s == NULL |
fd361982 | 2406 | || !bfd_set_section_alignment (s, bed->plt_alignment)) |
35cad4c4 | 2407 | return FALSE; |
37c644f2 AO |
2408 | |
2409 | if (bed->want_plt_sym) | |
2410 | { | |
2411 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
2412 | .plt section. */ | |
14a793b2 AM |
2413 | struct elf_link_hash_entry *h; |
2414 | struct bfd_link_hash_entry *bh = NULL; | |
2415 | ||
37c644f2 AO |
2416 | if (! (_bfd_generic_link_add_one_symbol |
2417 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
b34976b6 | 2418 | (bfd_vma) 0, (const char *) NULL, FALSE, |
14a793b2 | 2419 | get_elf_backend_data (abfd)->collect, &bh))) |
b34976b6 | 2420 | return FALSE; |
14a793b2 AM |
2421 | |
2422 | h = (struct elf_link_hash_entry *) bh; | |
f5385ebf | 2423 | h->def_regular = 1; |
37c644f2 | 2424 | h->type = STT_OBJECT; |
7325306f | 2425 | htab->root.hplt = h; |
37c644f2 | 2426 | |
0e1862bb | 2427 | if (bfd_link_pic (info) |
c152c796 | 2428 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2429 | return FALSE; |
37c644f2 AO |
2430 | } |
2431 | ||
3d4d4302 AM |
2432 | s = bfd_make_section_anyway_with_flags (abfd, |
2433 | bed->default_use_rela_p | |
2434 | ? ".rela.plt" : ".rel.plt", | |
2435 | flags | SEC_READONLY); | |
ce558b89 | 2436 | htab->root.srelplt = s; |
35cad4c4 | 2437 | if (s == NULL |
fd361982 | 2438 | || !bfd_set_section_alignment (s, ptralign)) |
35cad4c4 | 2439 | return FALSE; |
37c644f2 | 2440 | |
ce558b89 | 2441 | if (htab->root.sgot == NULL |
2293c499 | 2442 | && !create_got_section (abfd, info)) |
b34976b6 | 2443 | return FALSE; |
37c644f2 | 2444 | |
37c644f2 AO |
2445 | if (bed->want_dynbss) |
2446 | { | |
2447 | /* The .dynbss section is a place to put symbols which are defined | |
2448 | by dynamic objects, are referenced by regular objects, and are | |
2449 | not functions. We must allocate space for them in the process | |
2450 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2451 | initialize them at run time. The linker script puts the .dynbss | |
2452 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2453 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2454 | SEC_ALLOC | SEC_LINKER_CREATED); | |
35cad4c4 | 2455 | htab->sdynbss = s; |
3496cb2a | 2456 | if (s == NULL) |
35cad4c4 | 2457 | return FALSE; |
37c644f2 AO |
2458 | |
2459 | /* The .rel[a].bss section holds copy relocs. This section is not | |
2460 | normally needed. We need to create it here, though, so that the | |
2461 | linker will map it to an output section. We can't just create it | |
2462 | only if we need it, because we will not know whether we need it | |
2463 | until we have seen all the input files, and the first time the | |
2464 | main linker code calls BFD after examining all the input files | |
2465 | (size_dynamic_sections) the input sections have already been | |
2466 | mapped to the output sections. If the section turns out not to | |
2467 | be needed, we can discard it later. We will never need this | |
2468 | section when generating a shared object, since they do not use | |
2469 | copy relocs. */ | |
0e1862bb | 2470 | if (! bfd_link_pic (info)) |
37c644f2 | 2471 | { |
3d4d4302 AM |
2472 | s = bfd_make_section_anyway_with_flags (abfd, |
2473 | (bed->default_use_rela_p | |
2474 | ? ".rela.bss" : ".rel.bss"), | |
2475 | flags | SEC_READONLY); | |
067653c5 | 2476 | htab->srelbss = s; |
37c644f2 | 2477 | if (s == NULL |
fd361982 | 2478 | || !bfd_set_section_alignment (s, ptralign)) |
b34976b6 | 2479 | return FALSE; |
37c644f2 AO |
2480 | } |
2481 | } | |
2482 | ||
55e6e397 RS |
2483 | if (htab->vxworks_p) |
2484 | { | |
2485 | if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
2486 | return FALSE; | |
2487 | } | |
2488 | ||
b34976b6 | 2489 | return TRUE; |
37c644f2 AO |
2490 | } |
2491 | \f | |
63c1f59d AM |
2492 | /* Find dynamic relocs for H that apply to read-only sections. */ |
2493 | ||
2494 | static asection * | |
2495 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
2496 | { | |
3bf083ed | 2497 | struct elf_dyn_relocs *p; |
63c1f59d AM |
2498 | |
2499 | for (p = sh_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
2500 | { | |
2501 | asection *s = p->sec->output_section; | |
2502 | ||
2503 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2504 | return p->sec; | |
2505 | } | |
2506 | return NULL; | |
2507 | } | |
2508 | ||
37c644f2 AO |
2509 | /* Adjust a symbol defined by a dynamic object and referenced by a |
2510 | regular object. The current definition is in some section of the | |
2511 | dynamic object, but we're not including those sections. We have to | |
2512 | change the definition to something the rest of the link can | |
2513 | understand. */ | |
2514 | ||
b34976b6 | 2515 | static bfd_boolean |
09fd220b KK |
2516 | sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
2517 | struct elf_link_hash_entry *h) | |
37c644f2 | 2518 | { |
067653c5 | 2519 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 2520 | asection *s; |
37c644f2 | 2521 | |
2293c499 | 2522 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
2523 | if (htab == NULL) |
2524 | return FALSE; | |
37c644f2 AO |
2525 | |
2526 | /* Make sure we know what is going on here. */ | |
2293c499 | 2527 | BFD_ASSERT (htab->root.dynobj != NULL |
f5385ebf | 2528 | && (h->needs_plt |
60d67dc8 | 2529 | || h->is_weakalias |
f5385ebf AM |
2530 | || (h->def_dynamic |
2531 | && h->ref_regular | |
2532 | && !h->def_regular))); | |
37c644f2 AO |
2533 | |
2534 | /* If this is a function, put it in the procedure linkage table. We | |
2535 | will fill in the contents of the procedure linkage table later, | |
2536 | when we know the address of the .got section. */ | |
2537 | if (h->type == STT_FUNC | |
f5385ebf | 2538 | || h->needs_plt) |
37c644f2 | 2539 | { |
067653c5 | 2540 | if (h->plt.refcount <= 0 |
3d85aebe KK |
2541 | || SYMBOL_CALLS_LOCAL (info, h) |
2542 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2543 | && h->root.type == bfd_link_hash_undefweak)) | |
37c644f2 AO |
2544 | { |
2545 | /* This case can occur if we saw a PLT reloc in an input | |
2546 | file, but the symbol was never referred to by a dynamic | |
2547 | object. In such a case, we don't actually need to build | |
2548 | a procedure linkage table, and we can just do a REL32 | |
2549 | reloc instead. */ | |
067653c5 | 2550 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 2551 | h->needs_plt = 0; |
37c644f2 AO |
2552 | } |
2553 | ||
b34976b6 | 2554 | return TRUE; |
37c644f2 | 2555 | } |
067653c5 AM |
2556 | else |
2557 | h->plt.offset = (bfd_vma) -1; | |
37c644f2 AO |
2558 | |
2559 | /* If this is a weak symbol, and there is a real definition, the | |
2560 | processor independent code will have arranged for us to see the | |
2561 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2562 | if (h->is_weakalias) |
37c644f2 | 2563 | { |
60d67dc8 AM |
2564 | struct elf_link_hash_entry *def = weakdef (h); |
2565 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2566 | h->root.u.def.section = def->root.u.def.section; | |
2567 | h->root.u.def.value = def->root.u.def.value; | |
04e534c3 | 2568 | if (info->nocopyreloc) |
60d67dc8 | 2569 | h->non_got_ref = def->non_got_ref; |
b34976b6 | 2570 | return TRUE; |
37c644f2 AO |
2571 | } |
2572 | ||
2573 | /* This is a reference to a symbol defined by a dynamic object which | |
2574 | is not a function. */ | |
2575 | ||
2576 | /* If we are creating a shared library, we must presume that the | |
2577 | only references to the symbol are via the global offset table. | |
2578 | For such cases we need not do anything here; the relocations will | |
2579 | be handled correctly by relocate_section. */ | |
0e1862bb | 2580 | if (bfd_link_pic (info)) |
b34976b6 | 2581 | return TRUE; |
37c644f2 AO |
2582 | |
2583 | /* If there are no references to this symbol that do not use the | |
2584 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 2585 | if (!h->non_got_ref) |
b34976b6 | 2586 | return TRUE; |
37c644f2 | 2587 | |
067653c5 | 2588 | /* If -z nocopyreloc was given, we won't generate them either. */ |
3bf083ed | 2589 | if (0 && info->nocopyreloc) |
067653c5 | 2590 | { |
f5385ebf | 2591 | h->non_got_ref = 0; |
b34976b6 | 2592 | return TRUE; |
067653c5 AM |
2593 | } |
2594 | ||
3bf083ed AM |
2595 | /* If we don't find any dynamic relocs in read-only sections, then |
2596 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2597 | if (0 && !readonly_dynrelocs (h)) | |
067653c5 | 2598 | { |
f5385ebf | 2599 | h->non_got_ref = 0; |
b34976b6 | 2600 | return TRUE; |
067653c5 AM |
2601 | } |
2602 | ||
37c644f2 AO |
2603 | /* We must allocate the symbol in our .dynbss section, which will |
2604 | become part of the .bss section of the executable. There will be | |
2605 | an entry for this symbol in the .dynsym section. The dynamic | |
2606 | object will contain position independent code, so all references | |
2607 | from the dynamic object to this symbol will go through the global | |
2608 | offset table. The dynamic linker will use the .dynsym entry to | |
2609 | determine the address it must put in the global offset table, so | |
2610 | both the dynamic object and the regular object will refer to the | |
2611 | same memory location for the variable. */ | |
2612 | ||
067653c5 | 2613 | s = htab->sdynbss; |
37c644f2 AO |
2614 | BFD_ASSERT (s != NULL); |
2615 | ||
2616 | /* We must generate a R_SH_COPY reloc to tell the dynamic linker to | |
2617 | copy the initial value out of the dynamic object and into the | |
2618 | runtime process image. We need to remember the offset into the | |
2619 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 2620 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
37c644f2 AO |
2621 | { |
2622 | asection *srel; | |
2623 | ||
067653c5 | 2624 | srel = htab->srelbss; |
37c644f2 | 2625 | BFD_ASSERT (srel != NULL); |
eea6121a | 2626 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 2627 | h->needs_copy = 1; |
37c644f2 AO |
2628 | } |
2629 | ||
6cabe1ea | 2630 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
37c644f2 AO |
2631 | } |
2632 | ||
067653c5 AM |
2633 | /* Allocate space in .plt, .got and associated reloc sections for |
2634 | dynamic relocs. */ | |
2635 | ||
b34976b6 | 2636 | static bfd_boolean |
09fd220b | 2637 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
067653c5 AM |
2638 | { |
2639 | struct bfd_link_info *info; | |
2640 | struct elf_sh_link_hash_table *htab; | |
2641 | struct elf_sh_link_hash_entry *eh; | |
3bf083ed | 2642 | struct elf_dyn_relocs *p; |
067653c5 AM |
2643 | |
2644 | if (h->root.type == bfd_link_hash_indirect) | |
b34976b6 | 2645 | return TRUE; |
067653c5 | 2646 | |
067653c5 AM |
2647 | info = (struct bfd_link_info *) inf; |
2648 | htab = sh_elf_hash_table (info); | |
4dfe6ac6 NC |
2649 | if (htab == NULL) |
2650 | return FALSE; | |
067653c5 | 2651 | |
4989d792 SC |
2652 | eh = (struct elf_sh_link_hash_entry *) h; |
2653 | if ((h->got.refcount > 0 | |
f5385ebf | 2654 | || h->forced_local) |
4989d792 SC |
2655 | && eh->gotplt_refcount > 0) |
2656 | { | |
2657 | /* The symbol has been forced local, or we have some direct got refs, | |
26e41594 | 2658 | so treat all the gotplt refs as got refs. */ |
4989d792 SC |
2659 | h->got.refcount += eh->gotplt_refcount; |
2660 | if (h->plt.refcount >= eh->gotplt_refcount) | |
2661 | h->plt.refcount -= eh->gotplt_refcount; | |
2662 | } | |
2663 | ||
067653c5 | 2664 | if (htab->root.dynamic_sections_created |
04e534c3 KK |
2665 | && h->plt.refcount > 0 |
2666 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2667 | || h->root.type != bfd_link_hash_undefweak)) | |
067653c5 AM |
2668 | { |
2669 | /* Make sure this symbol is output as a dynamic symbol. | |
2670 | Undefined weak syms won't yet be marked as dynamic. */ | |
2671 | if (h->dynindx == -1 | |
f5385ebf | 2672 | && !h->forced_local) |
067653c5 | 2673 | { |
c152c796 | 2674 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2675 | return FALSE; |
067653c5 AM |
2676 | } |
2677 | ||
0e1862bb | 2678 | if (bfd_link_pic (info) |
267fb3c1 | 2679 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
067653c5 | 2680 | { |
ce558b89 | 2681 | asection *s = htab->root.splt; |
8e45593f | 2682 | const struct elf_sh_plt_info *plt_info; |
067653c5 AM |
2683 | |
2684 | /* If this is the first .plt entry, make room for the special | |
2685 | first entry. */ | |
eea6121a | 2686 | if (s->size == 0) |
55e6e397 | 2687 | s->size += htab->plt_info->plt0_entry_size; |
067653c5 | 2688 | |
eea6121a | 2689 | h->plt.offset = s->size; |
067653c5 AM |
2690 | |
2691 | /* If this symbol is not defined in a regular file, and we are | |
2692 | not generating a shared library, then set the symbol to this | |
2693 | location in the .plt. This is required to make function | |
2694 | pointers compare as equal between the normal executable and | |
8e45593f NC |
2695 | the shared library. Skip this for FDPIC, since the |
2696 | function's address will be the address of the canonical | |
2697 | function descriptor. */ | |
0e1862bb | 2698 | if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular) |
067653c5 AM |
2699 | { |
2700 | h->root.u.def.section = s; | |
2701 | h->root.u.def.value = h->plt.offset; | |
2702 | } | |
2703 | ||
2704 | /* Make room for this entry. */ | |
8e45593f NC |
2705 | plt_info = htab->plt_info; |
2706 | if (plt_info->short_plt != NULL | |
2707 | && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT)) | |
2708 | plt_info = plt_info->short_plt; | |
2709 | s->size += plt_info->symbol_entry_size; | |
067653c5 AM |
2710 | |
2711 | /* We also need to make an entry in the .got.plt section, which | |
2712 | will be placed in the .got section by the linker script. */ | |
8e45593f | 2713 | if (!htab->fdpic_p) |
ce558b89 | 2714 | htab->root.sgotplt->size += 4; |
8e45593f | 2715 | else |
ce558b89 | 2716 | htab->root.sgotplt->size += 8; |
067653c5 AM |
2717 | |
2718 | /* We also need to make an entry in the .rel.plt section. */ | |
ce558b89 | 2719 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); |
55e6e397 | 2720 | |
0e1862bb | 2721 | if (htab->vxworks_p && !bfd_link_pic (info)) |
55e6e397 RS |
2722 | { |
2723 | /* VxWorks executables have a second set of relocations | |
2724 | for each PLT entry. They go in a separate relocation | |
2725 | section, which is processed by the kernel loader. */ | |
2726 | ||
2727 | /* There is a relocation for the initial PLT entry: | |
2728 | an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */ | |
2729 | if (h->plt.offset == htab->plt_info->plt0_entry_size) | |
2730 | htab->srelplt2->size += sizeof (Elf32_External_Rela); | |
2731 | ||
2732 | /* There are two extra relocations for each subsequent | |
2733 | PLT entry: an R_SH_DIR32 relocation for the GOT entry, | |
2734 | and an R_SH_DIR32 relocation for the PLT entry. */ | |
2735 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2; | |
2736 | } | |
067653c5 AM |
2737 | } |
2738 | else | |
2739 | { | |
2740 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2741 | h->needs_plt = 0; |
067653c5 AM |
2742 | } |
2743 | } | |
2744 | else | |
2745 | { | |
2746 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2747 | h->needs_plt = 0; |
067653c5 AM |
2748 | } |
2749 | ||
2750 | if (h->got.refcount > 0) | |
2751 | { | |
2752 | asection *s; | |
b34976b6 | 2753 | bfd_boolean dyn; |
85e02784 | 2754 | enum got_type got_type = sh_elf_hash_entry (h)->got_type; |
067653c5 AM |
2755 | |
2756 | /* Make sure this symbol is output as a dynamic symbol. | |
2757 | Undefined weak syms won't yet be marked as dynamic. */ | |
2758 | if (h->dynindx == -1 | |
f5385ebf | 2759 | && !h->forced_local) |
067653c5 | 2760 | { |
c152c796 | 2761 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2762 | return FALSE; |
067653c5 AM |
2763 | } |
2764 | ||
ce558b89 | 2765 | s = htab->root.sgot; |
eea6121a AM |
2766 | h->got.offset = s->size; |
2767 | s->size += 4; | |
3376eaf5 | 2768 | /* R_SH_TLS_GD needs 2 consecutive GOT slots. */ |
8e45593f | 2769 | if (got_type == GOT_TLS_GD) |
eea6121a | 2770 | s->size += 4; |
067653c5 | 2771 | dyn = htab->root.dynamic_sections_created; |
8e45593f NC |
2772 | if (!dyn) |
2773 | { | |
2774 | /* No dynamic relocations required. */ | |
0e1862bb | 2775 | if (htab->fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
2776 | && h->root.type != bfd_link_hash_undefweak |
2777 | && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC)) | |
2778 | htab->srofixup->size += 4; | |
2779 | } | |
87458ed2 | 2780 | /* No dynamic relocations required when IE->LE conversion happens. */ |
0e1862bb L |
2781 | else if (got_type == GOT_TLS_IE |
2782 | && !h->def_dynamic | |
2783 | && !bfd_link_pic (info)) | |
87458ed2 | 2784 | ; |
267fb3c1 | 2785 | /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic, |
3376eaf5 | 2786 | R_SH_TLS_GD needs one if local symbol and two if global. */ |
8e45593f NC |
2787 | else if ((got_type == GOT_TLS_GD && h->dynindx == -1) |
2788 | || got_type == GOT_TLS_IE) | |
ce558b89 | 2789 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f | 2790 | else if (got_type == GOT_TLS_GD) |
ce558b89 | 2791 | htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela); |
8e45593f NC |
2792 | else if (got_type == GOT_FUNCDESC) |
2793 | { | |
0e1862bb | 2794 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
2795 | htab->srofixup->size += 4; |
2796 | else | |
ce558b89 | 2797 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f | 2798 | } |
04e534c3 KK |
2799 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
2800 | || h->root.type != bfd_link_hash_undefweak) | |
0e1862bb | 2801 | && (bfd_link_pic (info) |
04e534c3 | 2802 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) |
ce558b89 | 2803 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
0e1862bb L |
2804 | else if (htab->fdpic_p |
2805 | && !bfd_link_pic (info) | |
2806 | && got_type == GOT_NORMAL | |
8e45593f NC |
2807 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
2808 | || h->root.type != bfd_link_hash_undefweak)) | |
2809 | htab->srofixup->size += 4; | |
067653c5 AM |
2810 | } |
2811 | else | |
2812 | h->got.offset = (bfd_vma) -1; | |
2813 | ||
8e45593f NC |
2814 | /* Allocate space for any dynamic relocations to function |
2815 | descriptors, canonical or otherwise. We need to relocate the | |
2816 | reference unless it resolves to zero, which only happens for | |
2817 | undefined weak symbols (either non-default visibility, or when | |
2818 | static linking). Any GOT slot is accounted for elsewhere. */ | |
2819 | if (eh->abs_funcdesc_refcount > 0 | |
2820 | && (h->root.type != bfd_link_hash_undefweak | |
2821 | || (htab->root.dynamic_sections_created | |
2822 | && ! SYMBOL_CALLS_LOCAL (info, h)))) | |
2823 | { | |
0e1862bb | 2824 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
2825 | htab->srofixup->size += eh->abs_funcdesc_refcount * 4; |
2826 | else | |
ce558b89 | 2827 | htab->root.srelgot->size |
8e45593f NC |
2828 | += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela); |
2829 | } | |
2830 | ||
2831 | /* We must allocate a function descriptor if there are references to | |
2832 | a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and | |
2833 | the dynamic linker isn't going to allocate it. None of this | |
2834 | applies if we already created one in .got.plt, but if the | |
2835 | canonical function descriptor can be in this object, there | |
2836 | won't be a PLT entry at all. */ | |
2837 | if ((eh->funcdesc.refcount > 0 | |
2838 | || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC)) | |
2839 | && h->root.type != bfd_link_hash_undefweak | |
2840 | && SYMBOL_FUNCDESC_LOCAL (info, h)) | |
2841 | { | |
2842 | /* Make room for this function descriptor. */ | |
2843 | eh->funcdesc.offset = htab->sfuncdesc->size; | |
2844 | htab->sfuncdesc->size += 8; | |
2845 | ||
2846 | /* We will need a relocation or two fixups to initialize the | |
2847 | function descriptor, so allocate those too. */ | |
0e1862bb | 2848 | if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h)) |
8e45593f NC |
2849 | htab->srofixup->size += 8; |
2850 | else | |
2851 | htab->srelfuncdesc->size += sizeof (Elf32_External_Rela); | |
2852 | } | |
2853 | ||
067653c5 | 2854 | if (eh->dyn_relocs == NULL) |
b34976b6 | 2855 | return TRUE; |
067653c5 AM |
2856 | |
2857 | /* In the shared -Bsymbolic case, discard space allocated for | |
2858 | dynamic pc-relative relocs against symbols which turn out to be | |
2859 | defined in regular objects. For the normal shared case, discard | |
2860 | space for pc-relative relocs that have become local due to symbol | |
2861 | visibility changes. */ | |
2862 | ||
0e1862bb | 2863 | if (bfd_link_pic (info)) |
067653c5 | 2864 | { |
3d85aebe | 2865 | if (SYMBOL_CALLS_LOCAL (info, h)) |
067653c5 | 2866 | { |
3bf083ed | 2867 | struct elf_dyn_relocs **pp; |
067653c5 AM |
2868 | |
2869 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2870 | { | |
2871 | p->count -= p->pc_count; | |
2872 | p->pc_count = 0; | |
2873 | if (p->count == 0) | |
2874 | *pp = p->next; | |
2875 | else | |
2876 | pp = &p->next; | |
2877 | } | |
2878 | } | |
04e534c3 | 2879 | |
3348747a NS |
2880 | if (htab->vxworks_p) |
2881 | { | |
3bf083ed | 2882 | struct elf_dyn_relocs **pp; |
3348747a NS |
2883 | |
2884 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2885 | { | |
2886 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
2887 | *pp = p->next; | |
2888 | else | |
2889 | pp = &p->next; | |
2890 | } | |
2891 | } | |
2892 | ||
04e534c3 KK |
2893 | /* Also discard relocs on undefined weak syms with non-default |
2894 | visibility. */ | |
22d606e9 | 2895 | if (eh->dyn_relocs != NULL |
04e534c3 | 2896 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 | 2897 | { |
6ee6e05a L |
2898 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2899 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
22d606e9 AM |
2900 | eh->dyn_relocs = NULL; |
2901 | ||
2902 | /* Make sure undefined weak symbols are output as a dynamic | |
2903 | symbol in PIEs. */ | |
2904 | else if (h->dynindx == -1 | |
2905 | && !h->forced_local) | |
2906 | { | |
2907 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2908 | return FALSE; | |
2909 | } | |
2910 | } | |
067653c5 AM |
2911 | } |
2912 | else | |
2913 | { | |
2914 | /* For the non-shared case, discard space for relocs against | |
2915 | symbols which turn out to need copy relocs or are not | |
2916 | dynamic. */ | |
2917 | ||
f5385ebf AM |
2918 | if (!h->non_got_ref |
2919 | && ((h->def_dynamic | |
2920 | && !h->def_regular) | |
067653c5 AM |
2921 | || (htab->root.dynamic_sections_created |
2922 | && (h->root.type == bfd_link_hash_undefweak | |
2923 | || h->root.type == bfd_link_hash_undefined)))) | |
2924 | { | |
2925 | /* Make sure this symbol is output as a dynamic symbol. | |
2926 | Undefined weak syms won't yet be marked as dynamic. */ | |
2927 | if (h->dynindx == -1 | |
f5385ebf | 2928 | && !h->forced_local) |
067653c5 | 2929 | { |
c152c796 | 2930 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2931 | return FALSE; |
067653c5 AM |
2932 | } |
2933 | ||
2934 | /* If that succeeded, we know we'll be keeping all the | |
2935 | relocs. */ | |
2936 | if (h->dynindx != -1) | |
2937 | goto keep; | |
2938 | } | |
2939 | ||
2940 | eh->dyn_relocs = NULL; | |
2941 | ||
2942 | keep: ; | |
2943 | } | |
2944 | ||
2945 | /* Finally, allocate space. */ | |
2946 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2947 | { | |
2948 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2949 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
8e45593f NC |
2950 | |
2951 | /* If we need relocations, we do not need fixups. */ | |
0e1862bb | 2952 | if (htab->fdpic_p && !bfd_link_pic (info)) |
8e45593f | 2953 | htab->srofixup->size -= 4 * (p->count - p->pc_count); |
067653c5 AM |
2954 | } |
2955 | ||
b34976b6 | 2956 | return TRUE; |
067653c5 AM |
2957 | } |
2958 | ||
63c1f59d AM |
2959 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
2960 | read-only sections. */ | |
067653c5 | 2961 | |
b34976b6 | 2962 | static bfd_boolean |
63c1f59d | 2963 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
067653c5 | 2964 | { |
63c1f59d | 2965 | asection *sec; |
067653c5 | 2966 | |
63c1f59d AM |
2967 | if (h->root.type == bfd_link_hash_indirect) |
2968 | return TRUE; | |
067653c5 | 2969 | |
63c1f59d AM |
2970 | sec = readonly_dynrelocs (h); |
2971 | if (sec != NULL) | |
2972 | { | |
2973 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
067653c5 | 2974 | |
63c1f59d AM |
2975 | info->flags |= DF_TEXTREL; |
2976 | info->callbacks->minfo | |
c1c8c1ef | 2977 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 2978 | sec->owner, h->root.root.string, sec); |
a72f95f7 | 2979 | |
63c1f59d AM |
2980 | /* Not an error, just cut short the traversal. */ |
2981 | return FALSE; | |
067653c5 | 2982 | } |
b34976b6 | 2983 | return TRUE; |
067653c5 AM |
2984 | } |
2985 | ||
55e6e397 RS |
2986 | /* This function is called after all the input files have been read, |
2987 | and the input sections have been assigned to output sections. | |
2988 | It's a convenient place to determine the PLT style. */ | |
2989 | ||
2990 | static bfd_boolean | |
2991 | sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) | |
2992 | { | |
0e1862bb L |
2993 | sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd, |
2994 | bfd_link_pic (info)); | |
8e45593f | 2995 | |
0e1862bb | 2996 | if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info) |
04c3a755 NS |
2997 | && !bfd_elf_stack_segment_size (output_bfd, info, |
2998 | "__stacksize", DEFAULT_STACK_SIZE)) | |
2999 | return FALSE; | |
55e6e397 RS |
3000 | return TRUE; |
3001 | } | |
3002 | ||
37c644f2 AO |
3003 | /* Set the sizes of the dynamic sections. */ |
3004 | ||
b34976b6 | 3005 | static bfd_boolean |
09fd220b KK |
3006 | sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
3007 | struct bfd_link_info *info) | |
37c644f2 | 3008 | { |
067653c5 | 3009 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
3010 | bfd *dynobj; |
3011 | asection *s; | |
b34976b6 | 3012 | bfd_boolean relocs; |
067653c5 | 3013 | bfd *ibfd; |
37c644f2 | 3014 | |
067653c5 | 3015 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
3016 | if (htab == NULL) |
3017 | return FALSE; | |
3018 | ||
067653c5 | 3019 | dynobj = htab->root.dynobj; |
37c644f2 AO |
3020 | BFD_ASSERT (dynobj != NULL); |
3021 | ||
067653c5 | 3022 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
3023 | { |
3024 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 3025 | if (bfd_link_executable (info) && !info->nointerp) |
37c644f2 | 3026 | { |
3d4d4302 | 3027 | s = bfd_get_linker_section (dynobj, ".interp"); |
37c644f2 | 3028 | BFD_ASSERT (s != NULL); |
eea6121a | 3029 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
37c644f2 AO |
3030 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
3031 | } | |
3032 | } | |
37c644f2 | 3033 | |
067653c5 AM |
3034 | /* Set up .got offsets for local syms, and space for local dynamic |
3035 | relocs. */ | |
c72f2fb2 | 3036 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
37c644f2 | 3037 | { |
067653c5 AM |
3038 | bfd_signed_vma *local_got; |
3039 | bfd_signed_vma *end_local_got; | |
8e45593f NC |
3040 | union gotref *local_funcdesc, *end_local_funcdesc; |
3041 | char *local_got_type; | |
067653c5 AM |
3042 | bfd_size_type locsymcount; |
3043 | Elf_Internal_Shdr *symtab_hdr; | |
3044 | asection *srel; | |
37c644f2 | 3045 | |
0ffa91dd | 3046 | if (! is_sh_elf (ibfd)) |
37c644f2 AO |
3047 | continue; |
3048 | ||
067653c5 | 3049 | for (s = ibfd->sections; s != NULL; s = s->next) |
37c644f2 | 3050 | { |
3bf083ed | 3051 | struct elf_dyn_relocs *p; |
067653c5 | 3052 | |
3bf083ed | 3053 | for (p = ((struct elf_dyn_relocs *) |
067653c5 AM |
3054 | elf_section_data (s)->local_dynrel); |
3055 | p != NULL; | |
3056 | p = p->next) | |
37c644f2 | 3057 | { |
067653c5 AM |
3058 | if (! bfd_is_abs_section (p->sec) |
3059 | && bfd_is_abs_section (p->sec->output_section)) | |
3060 | { | |
3061 | /* Input section has been discarded, either because | |
3062 | it is a copy of a linkonce section or due to | |
3063 | linker script /DISCARD/, so we'll be discarding | |
3064 | the relocs too. */ | |
3065 | } | |
3348747a NS |
3066 | else if (htab->vxworks_p |
3067 | && strcmp (p->sec->output_section->name, | |
3068 | ".tls_vars") == 0) | |
3069 | { | |
3070 | /* Relocations in vxworks .tls_vars sections are | |
3071 | handled specially by the loader. */ | |
3072 | } | |
067653c5 AM |
3073 | else if (p->count != 0) |
3074 | { | |
3075 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 3076 | srel->size += p->count * sizeof (Elf32_External_Rela); |
067653c5 | 3077 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
a72f95f7 L |
3078 | { |
3079 | info->flags |= DF_TEXTREL; | |
871b3ab2 | 3080 | info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"), |
a72f95f7 L |
3081 | p->sec->owner, p->sec); |
3082 | } | |
8e45593f NC |
3083 | |
3084 | /* If we need relocations, we do not need fixups. */ | |
0e1862bb | 3085 | if (htab->fdpic_p && !bfd_link_pic (info)) |
8e45593f | 3086 | htab->srofixup->size -= 4 * (p->count - p->pc_count); |
067653c5 | 3087 | } |
37c644f2 AO |
3088 | } |
3089 | } | |
067653c5 | 3090 | |
0ffa91dd | 3091 | symtab_hdr = &elf_symtab_hdr (ibfd); |
067653c5 | 3092 | locsymcount = symtab_hdr->sh_info; |
ce558b89 AM |
3093 | s = htab->root.sgot; |
3094 | srel = htab->root.srelgot; | |
8e45593f NC |
3095 | |
3096 | local_got = elf_local_got_refcounts (ibfd); | |
3097 | if (local_got) | |
37c644f2 | 3098 | { |
8e45593f NC |
3099 | end_local_got = local_got + locsymcount; |
3100 | local_got_type = sh_elf_local_got_type (ibfd); | |
3101 | local_funcdesc = sh_elf_local_funcdesc (ibfd); | |
3102 | for (; local_got < end_local_got; ++local_got) | |
37c644f2 | 3103 | { |
8e45593f NC |
3104 | if (*local_got > 0) |
3105 | { | |
3106 | *local_got = s->size; | |
3107 | s->size += 4; | |
3108 | if (*local_got_type == GOT_TLS_GD) | |
3109 | s->size += 4; | |
0e1862bb | 3110 | if (bfd_link_pic (info)) |
8e45593f NC |
3111 | srel->size += sizeof (Elf32_External_Rela); |
3112 | else | |
3113 | htab->srofixup->size += 4; | |
3114 | ||
3115 | if (*local_got_type == GOT_FUNCDESC) | |
3116 | { | |
3117 | if (local_funcdesc == NULL) | |
3118 | { | |
3119 | bfd_size_type size; | |
3120 | ||
3121 | size = locsymcount * sizeof (union gotref); | |
3122 | local_funcdesc = (union gotref *) bfd_zalloc (ibfd, | |
3123 | size); | |
3124 | if (local_funcdesc == NULL) | |
3125 | return FALSE; | |
3126 | sh_elf_local_funcdesc (ibfd) = local_funcdesc; | |
3127 | local_funcdesc += (local_got | |
3128 | - elf_local_got_refcounts (ibfd)); | |
3129 | } | |
3130 | local_funcdesc->refcount++; | |
3131 | ++local_funcdesc; | |
3132 | } | |
3133 | } | |
3134 | else | |
3135 | *local_got = (bfd_vma) -1; | |
3136 | ++local_got_type; | |
3137 | } | |
3138 | } | |
3139 | ||
3140 | local_funcdesc = sh_elf_local_funcdesc (ibfd); | |
3141 | if (local_funcdesc) | |
3142 | { | |
3143 | end_local_funcdesc = local_funcdesc + locsymcount; | |
3144 | ||
3145 | for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc) | |
3146 | { | |
3147 | if (local_funcdesc->refcount > 0) | |
3148 | { | |
3149 | local_funcdesc->offset = htab->sfuncdesc->size; | |
3150 | htab->sfuncdesc->size += 8; | |
0e1862bb | 3151 | if (!bfd_link_pic (info)) |
8e45593f NC |
3152 | htab->srofixup->size += 8; |
3153 | else | |
3154 | htab->srelfuncdesc->size += sizeof (Elf32_External_Rela); | |
3155 | } | |
3156 | else | |
3157 | local_funcdesc->offset = MINUS_ONE; | |
37c644f2 | 3158 | } |
37c644f2 | 3159 | } |
8e45593f | 3160 | |
067653c5 AM |
3161 | } |
3162 | ||
3376eaf5 KK |
3163 | if (htab->tls_ldm_got.refcount > 0) |
3164 | { | |
3165 | /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32 | |
3166 | relocs. */ | |
ce558b89 AM |
3167 | htab->tls_ldm_got.offset = htab->root.sgot->size; |
3168 | htab->root.sgot->size += 8; | |
3169 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
3170 | } |
3171 | else | |
3172 | htab->tls_ldm_got.offset = -1; | |
3173 | ||
8e45593f NC |
3174 | /* Only the reserved entries should be present. For FDPIC, they go at |
3175 | the end of .got.plt. */ | |
3176 | if (htab->fdpic_p) | |
3177 | { | |
ce558b89 AM |
3178 | BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12); |
3179 | htab->root.sgotplt->size = 0; | |
8e45593f NC |
3180 | } |
3181 | ||
067653c5 AM |
3182 | /* Allocate global sym .plt and .got entries, and space for global |
3183 | sym dynamic relocs. */ | |
09fd220b | 3184 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); |
067653c5 | 3185 | |
8e45593f NC |
3186 | /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the |
3187 | end of the FDPIC .got.plt. */ | |
3188 | if (htab->fdpic_p) | |
3189 | { | |
ce558b89 AM |
3190 | htab->root.hgot->root.u.def.value = htab->root.sgotplt->size; |
3191 | htab->root.sgotplt->size += 12; | |
8e45593f NC |
3192 | } |
3193 | ||
3194 | /* At the very end of the .rofixup section is a pointer to the GOT. */ | |
3195 | if (htab->fdpic_p && htab->srofixup != NULL) | |
3196 | htab->srofixup->size += 4; | |
3197 | ||
067653c5 AM |
3198 | /* We now have determined the sizes of the various dynamic sections. |
3199 | Allocate memory for them. */ | |
b34976b6 | 3200 | relocs = FALSE; |
067653c5 AM |
3201 | for (s = dynobj->sections; s != NULL; s = s->next) |
3202 | { | |
3203 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3204 | continue; | |
3205 | ||
ce558b89 AM |
3206 | if (s == htab->root.splt |
3207 | || s == htab->root.sgot | |
3208 | || s == htab->root.sgotplt | |
8e45593f NC |
3209 | || s == htab->sfuncdesc |
3210 | || s == htab->srofixup | |
c456f082 | 3211 | || s == htab->sdynbss) |
067653c5 AM |
3212 | { |
3213 | /* Strip this section if we don't need it; see the | |
3214 | comment below. */ | |
3215 | } | |
fd361982 | 3216 | else if (CONST_STRNEQ (bfd_section_name (s), ".rela")) |
067653c5 | 3217 | { |
ce558b89 | 3218 | if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2) |
b34976b6 | 3219 | relocs = TRUE; |
067653c5 AM |
3220 | |
3221 | /* We use the reloc_count field as a counter if we need | |
3222 | to copy relocs into the output file. */ | |
3223 | s->reloc_count = 0; | |
3224 | } | |
3225 | else | |
37c644f2 AO |
3226 | { |
3227 | /* It's not one of our sections, so don't allocate space. */ | |
3228 | continue; | |
3229 | } | |
3230 | ||
eea6121a | 3231 | if (s->size == 0) |
37c644f2 | 3232 | { |
067653c5 AM |
3233 | /* If we don't need this section, strip it from the |
3234 | output file. This is mostly to handle .rela.bss and | |
3235 | .rela.plt. We must create both sections in | |
3236 | create_dynamic_sections, because they must be created | |
3237 | before the linker maps input sections to output | |
3238 | sections. The linker does that before | |
3239 | adjust_dynamic_symbol is called, and it is that | |
3240 | function which decides whether anything needs to go | |
3241 | into these sections. */ | |
3242 | ||
8423293d | 3243 | s->flags |= SEC_EXCLUDE; |
37c644f2 AO |
3244 | continue; |
3245 | } | |
3246 | ||
c456f082 AM |
3247 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
3248 | continue; | |
3249 | ||
067653c5 AM |
3250 | /* Allocate memory for the section contents. We use bfd_zalloc |
3251 | here in case unused entries are not reclaimed before the | |
3252 | section's contents are written out. This should not happen, | |
3253 | but this way if it does, we get a R_SH_NONE reloc instead | |
3254 | of garbage. */ | |
eea6121a | 3255 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
067653c5 | 3256 | if (s->contents == NULL) |
b34976b6 | 3257 | return FALSE; |
37c644f2 AO |
3258 | } |
3259 | ||
067653c5 | 3260 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
3261 | { |
3262 | /* Add some entries to the .dynamic section. We fill in the | |
3263 | values later, in sh_elf_finish_dynamic_sections, but we | |
3264 | must add the entries now so that we get the correct size for | |
3265 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3266 | dynamic linker and used by the debugger. */ | |
dc810e39 | 3267 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 3268 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 3269 | |
0e1862bb | 3270 | if (bfd_link_executable (info)) |
37c644f2 | 3271 | { |
067653c5 | 3272 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 3273 | return FALSE; |
37c644f2 AO |
3274 | } |
3275 | ||
ce558b89 | 3276 | if (htab->root.splt->size != 0) |
37c644f2 | 3277 | { |
067653c5 AM |
3278 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
3279 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
3280 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3281 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 3282 | return FALSE; |
37c644f2 | 3283 | } |
b4b0e149 | 3284 | else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC)) |
8e45593f NC |
3285 | { |
3286 | if (! add_dynamic_entry (DT_PLTGOT, 0)) | |
3287 | return FALSE; | |
3288 | } | |
37c644f2 AO |
3289 | |
3290 | if (relocs) | |
3291 | { | |
067653c5 AM |
3292 | if (! add_dynamic_entry (DT_RELA, 0) |
3293 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
3294 | || ! add_dynamic_entry (DT_RELAENT, | |
3295 | sizeof (Elf32_External_Rela))) | |
b34976b6 | 3296 | return FALSE; |
37c644f2 | 3297 | |
067653c5 AM |
3298 | /* If any dynamic relocs apply to a read-only section, |
3299 | then we need a DT_TEXTREL entry. */ | |
3300 | if ((info->flags & DF_TEXTREL) == 0) | |
63c1f59d | 3301 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); |
067653c5 AM |
3302 | |
3303 | if ((info->flags & DF_TEXTREL) != 0) | |
3304 | { | |
3305 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 3306 | return FALSE; |
067653c5 | 3307 | } |
37c644f2 | 3308 | } |
7a2b07ff NS |
3309 | if (htab->vxworks_p |
3310 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
3311 | return FALSE; | |
37c644f2 | 3312 | } |
dc810e39 | 3313 | #undef add_dynamic_entry |
37c644f2 | 3314 | |
b34976b6 | 3315 | return TRUE; |
37c644f2 | 3316 | } |
37c644f2 | 3317 | \f |
8e45593f | 3318 | /* Add a dynamic relocation to the SRELOC section. */ |
37c644f2 | 3319 | |
8e45593f NC |
3320 | inline static bfd_vma |
3321 | sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset, | |
3322 | int reloc_type, long dynindx, bfd_vma addend) | |
37c644f2 | 3323 | { |
8e45593f NC |
3324 | Elf_Internal_Rela outrel; |
3325 | bfd_vma reloc_offset; | |
37c644f2 | 3326 | |
8e45593f NC |
3327 | outrel.r_offset = offset; |
3328 | outrel.r_info = ELF32_R_INFO (dynindx, reloc_type); | |
3329 | outrel.r_addend = addend; | |
0ffa91dd | 3330 | |
8e45593f NC |
3331 | reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela); |
3332 | BFD_ASSERT (reloc_offset < sreloc->size); | |
3333 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3334 | sreloc->contents + reloc_offset); | |
3335 | sreloc->reloc_count++; | |
37c644f2 | 3336 | |
8e45593f NC |
3337 | return reloc_offset; |
3338 | } | |
37c644f2 | 3339 | |
8e45593f | 3340 | /* Add an FDPIC read-only fixup. */ |
37c644f2 | 3341 | |
8e45593f NC |
3342 | inline static void |
3343 | sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset) | |
3344 | { | |
3345 | bfd_vma fixup_offset; | |
3346 | ||
3347 | fixup_offset = srofixup->reloc_count++ * 4; | |
3348 | BFD_ASSERT (fixup_offset < srofixup->size); | |
3349 | bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset); | |
3350 | } | |
3351 | ||
3352 | /* Return the offset of the generated .got section from the | |
3353 | _GLOBAL_OFFSET_TABLE_ symbol. */ | |
3354 | ||
3355 | static bfd_signed_vma | |
3356 | sh_elf_got_offset (struct elf_sh_link_hash_table *htab) | |
3357 | { | |
ce558b89 | 3358 | return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset |
8e45593f NC |
3359 | - htab->root.hgot->root.u.def.value); |
3360 | } | |
3361 | ||
3362 | /* Find the segment number in which OSEC, and output section, is | |
3363 | located. */ | |
3364 | ||
3365 | static unsigned | |
3366 | sh_elf_osec_to_segment (bfd *output_bfd, asection *osec) | |
3367 | { | |
3d301fdc AM |
3368 | Elf_Internal_Phdr *p = NULL; |
3369 | ||
5bc8cb6f NC |
3370 | if (output_bfd->xvec->flavour == bfd_target_elf_flavour |
3371 | /* PR ld/17110: Do not look for output segments in an input bfd. */ | |
3372 | && output_bfd->direction != read_direction) | |
3d301fdc | 3373 | p = _bfd_elf_find_segment_containing_section (output_bfd, osec); |
8e45593f NC |
3374 | |
3375 | /* FIXME: Nothing ever says what this index is relative to. The kernel | |
3376 | supplies data in terms of the number of load segments but this is | |
3377 | a phdr index and the first phdr may not be a load segment. */ | |
3378 | return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1; | |
3379 | } | |
3380 | ||
3381 | static bfd_boolean | |
3382 | sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec) | |
3383 | { | |
3384 | unsigned seg = sh_elf_osec_to_segment (output_bfd, osec); | |
3385 | ||
3d301fdc AM |
3386 | return (seg != (unsigned) -1 |
3387 | && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W)); | |
8e45593f NC |
3388 | } |
3389 | ||
3390 | /* Generate the initial contents of a local function descriptor, along | |
3391 | with any relocations or fixups required. */ | |
3392 | static bfd_boolean | |
3393 | sh_elf_initialize_funcdesc (bfd *output_bfd, | |
3394 | struct bfd_link_info *info, | |
3395 | struct elf_link_hash_entry *h, | |
3396 | bfd_vma offset, | |
3397 | asection *section, | |
3398 | bfd_vma value) | |
3399 | { | |
3400 | struct elf_sh_link_hash_table *htab; | |
3401 | int dynindx; | |
3402 | bfd_vma addr, seg; | |
3403 | ||
3404 | htab = sh_elf_hash_table (info); | |
3405 | ||
3406 | /* FIXME: The ABI says that the offset to the function goes in the | |
3407 | descriptor, along with the segment index. We're RELA, so it could | |
3408 | go in the reloc instead... */ | |
3409 | ||
3410 | if (h != NULL && SYMBOL_CALLS_LOCAL (info, h)) | |
3411 | { | |
3412 | section = h->root.u.def.section; | |
3413 | value = h->root.u.def.value; | |
3414 | } | |
3415 | ||
3416 | if (h == NULL || SYMBOL_CALLS_LOCAL (info, h)) | |
3417 | { | |
3418 | dynindx = elf_section_data (section->output_section)->dynindx; | |
3419 | addr = value + section->output_offset; | |
3420 | seg = sh_elf_osec_to_segment (output_bfd, section->output_section); | |
3421 | } | |
3422 | else | |
3423 | { | |
3424 | BFD_ASSERT (h->dynindx != -1); | |
3425 | dynindx = h->dynindx; | |
3426 | addr = seg = 0; | |
3427 | } | |
3428 | ||
0e1862bb | 3429 | if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h)) |
8e45593f NC |
3430 | { |
3431 | if (h == NULL || h->root.type != bfd_link_hash_undefweak) | |
3432 | { | |
3433 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
3434 | offset | |
3435 | + htab->sfuncdesc->output_section->vma | |
3436 | + htab->sfuncdesc->output_offset); | |
3437 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
3438 | offset + 4 | |
3439 | + htab->sfuncdesc->output_section->vma | |
3440 | + htab->sfuncdesc->output_offset); | |
3441 | } | |
3442 | ||
3443 | /* There are no dynamic relocations so fill in the final | |
3444 | address and gp value (barring fixups). */ | |
3445 | addr += section->output_section->vma; | |
3446 | seg = htab->root.hgot->root.u.def.value | |
3447 | + htab->root.hgot->root.u.def.section->output_section->vma | |
3448 | + htab->root.hgot->root.u.def.section->output_offset; | |
3449 | } | |
3450 | else | |
3451 | sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc, | |
3452 | offset | |
3453 | + htab->sfuncdesc->output_section->vma | |
3454 | + htab->sfuncdesc->output_offset, | |
3455 | R_SH_FUNCDESC_VALUE, dynindx, 0); | |
3456 | ||
3457 | bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset); | |
3458 | bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4); | |
3459 | ||
3460 | return TRUE; | |
3461 | } | |
3462 | ||
3463 | /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD. | |
3464 | VALUE is the field's value. Return bfd_reloc_ok if successful or an error | |
3465 | otherwise. */ | |
3466 | ||
3467 | static bfd_reloc_status_type | |
3468 | install_movi20_field (bfd *output_bfd, unsigned long relocation, | |
3469 | bfd *input_bfd, asection *input_section, | |
3470 | bfd_byte *contents, bfd_vma offset) | |
3471 | { | |
3472 | unsigned long cur_val; | |
3473 | bfd_byte *addr; | |
3474 | bfd_reloc_status_type r; | |
3475 | ||
3476 | if (offset > bfd_get_section_limit (input_bfd, input_section)) | |
3477 | return bfd_reloc_outofrange; | |
3478 | ||
3479 | r = bfd_check_overflow (complain_overflow_signed, 20, 0, | |
3480 | bfd_arch_bits_per_address (input_bfd), relocation); | |
3481 | if (r != bfd_reloc_ok) | |
3482 | return r; | |
3483 | ||
3484 | addr = contents + offset; | |
3485 | cur_val = bfd_get_16 (output_bfd, addr); | |
3486 | bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr); | |
3487 | bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2); | |
3488 | ||
3489 | return bfd_reloc_ok; | |
3490 | } | |
3491 | ||
3492 | /* Relocate an SH ELF section. */ | |
3493 | ||
3494 | static bfd_boolean | |
3495 | sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, | |
3496 | bfd *input_bfd, asection *input_section, | |
3497 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
3498 | Elf_Internal_Sym *local_syms, | |
3499 | asection **local_sections) | |
3500 | { | |
3501 | struct elf_sh_link_hash_table *htab; | |
3502 | Elf_Internal_Shdr *symtab_hdr; | |
3503 | struct elf_link_hash_entry **sym_hashes; | |
3504 | Elf_Internal_Rela *rel, *relend; | |
8e45593f | 3505 | bfd_vma *local_got_offsets; |
e0af1f53 MR |
3506 | asection *sgot = NULL; |
3507 | asection *sgotplt = NULL; | |
3508 | asection *splt = NULL; | |
3509 | asection *sreloc = NULL; | |
3510 | asection *srelgot = NULL; | |
8e45593f NC |
3511 | bfd_boolean is_vxworks_tls; |
3512 | unsigned isec_segment, got_segment, plt_segment, check_segment[2]; | |
e0af1f53 | 3513 | bfd_boolean fdpic_p = FALSE; |
8e45593f | 3514 | |
7af5d5c4 AM |
3515 | if (!is_sh_elf (input_bfd)) |
3516 | { | |
3517 | bfd_set_error (bfd_error_wrong_format); | |
3518 | return FALSE; | |
3519 | } | |
8e45593f NC |
3520 | |
3521 | htab = sh_elf_hash_table (info); | |
e0af1f53 MR |
3522 | if (htab != NULL) |
3523 | { | |
ce558b89 AM |
3524 | sgot = htab->root.sgot; |
3525 | sgotplt = htab->root.sgotplt; | |
3526 | srelgot = htab->root.srelgot; | |
3527 | splt = htab->root.splt; | |
e0af1f53 MR |
3528 | fdpic_p = htab->fdpic_p; |
3529 | } | |
8e45593f NC |
3530 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
3531 | sym_hashes = elf_sym_hashes (input_bfd); | |
8e45593f NC |
3532 | local_got_offsets = elf_local_got_offsets (input_bfd); |
3533 | ||
3534 | isec_segment = sh_elf_osec_to_segment (output_bfd, | |
3535 | input_section->output_section); | |
e0af1f53 | 3536 | if (fdpic_p && sgot) |
8e45593f | 3537 | got_segment = sh_elf_osec_to_segment (output_bfd, |
e0af1f53 | 3538 | sgot->output_section); |
8e45593f NC |
3539 | else |
3540 | got_segment = -1; | |
e0af1f53 | 3541 | if (fdpic_p && splt) |
8e45593f | 3542 | plt_segment = sh_elf_osec_to_segment (output_bfd, |
e0af1f53 | 3543 | splt->output_section); |
8e45593f NC |
3544 | else |
3545 | plt_segment = -1; | |
3546 | ||
8e45593f NC |
3547 | /* We have to handle relocations in vxworks .tls_vars sections |
3548 | specially, because the dynamic loader is 'weird'. */ | |
0e1862bb | 3549 | is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info) |
8e45593f NC |
3550 | && !strcmp (input_section->output_section->name, |
3551 | ".tls_vars")); | |
3552 | ||
3553 | rel = relocs; | |
3554 | relend = relocs + input_section->reloc_count; | |
3555 | for (; rel < relend; rel++) | |
3556 | { | |
3557 | int r_type; | |
3558 | reloc_howto_type *howto; | |
3559 | unsigned long r_symndx; | |
3560 | Elf_Internal_Sym *sym; | |
3561 | asection *sec; | |
3562 | struct elf_link_hash_entry *h; | |
3563 | bfd_vma relocation; | |
3564 | bfd_vma addend = (bfd_vma) 0; | |
3565 | bfd_reloc_status_type r; | |
8e45593f | 3566 | bfd_vma off; |
85e02784 | 3567 | enum got_type got_type; |
8e45593f | 3568 | const char *symname = NULL; |
6ee6e05a | 3569 | bfd_boolean resolved_to_zero; |
8e45593f NC |
3570 | |
3571 | r_symndx = ELF32_R_SYM (rel->r_info); | |
37c644f2 | 3572 | |
37c644f2 AO |
3573 | r_type = ELF32_R_TYPE (rel->r_info); |
3574 | ||
3575 | /* Many of the relocs are only used for relaxing, and are | |
067653c5 | 3576 | handled entirely by the relaxation code. */ |
d38eb334 DD |
3577 | if (r_type >= (int) R_SH_GNU_VTINHERIT |
3578 | && r_type <= (int) R_SH_LABEL) | |
37c644f2 | 3579 | continue; |
c5aeb40f AO |
3580 | if (r_type == (int) R_SH_NONE) |
3581 | continue; | |
37c644f2 AO |
3582 | |
3583 | if (r_type < 0 | |
3584 | || r_type >= R_SH_max | |
3585 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC | |
06bb75c1 | 3586 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) |
8e45593f NC |
3587 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 |
3588 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_2) | |
fbca6ad9 AO |
3589 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3 |
3590 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_3) | |
3591 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 | |
3592 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_4) | |
3376eaf5 KK |
3593 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5 |
3594 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_5) | |
8e45593f NC |
3595 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6 |
3596 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_6)) | |
37c644f2 AO |
3597 | { |
3598 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3599 | return FALSE; |
37c644f2 AO |
3600 | } |
3601 | ||
55e6e397 | 3602 | howto = get_howto_table (output_bfd) + r_type; |
37c644f2 | 3603 | |
146be91a | 3604 | /* For relocs that aren't partial_inplace, we get the addend from |
067653c5 | 3605 | the relocation. */ |
146be91a HPN |
3606 | if (! howto->partial_inplace) |
3607 | addend = rel->r_addend; | |
3608 | ||
6ee6e05a | 3609 | resolved_to_zero = FALSE; |
37c644f2 AO |
3610 | h = NULL; |
3611 | sym = NULL; | |
3612 | sec = NULL; | |
8e45593f NC |
3613 | check_segment[0] = -1; |
3614 | check_segment[1] = -1; | |
37c644f2 AO |
3615 | if (r_symndx < symtab_hdr->sh_info) |
3616 | { | |
3617 | sym = local_syms + r_symndx; | |
3618 | sec = local_sections[r_symndx]; | |
8e45593f NC |
3619 | |
3620 | symname = bfd_elf_string_from_elf_section | |
3621 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
3622 | if (symname == NULL || *symname == '\0') | |
fd361982 | 3623 | symname = bfd_section_name (sec); |
8e45593f | 3624 | |
37c644f2 AO |
3625 | relocation = (sec->output_section->vma |
3626 | + sec->output_offset | |
3627 | + sym->st_value); | |
ab96bf03 | 3628 | |
dbaa2011 | 3629 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
3630 | /* Handled below. */ |
3631 | ; | |
0e1862bb | 3632 | else if (bfd_link_relocatable (info)) |
8a3975e6 | 3633 | { |
1049f94e | 3634 | /* This is a relocatable link. We don't have to change |
8a3975e6 AO |
3635 | anything, unless the reloc is against a section symbol, |
3636 | in which case we have to adjust according to where the | |
3637 | section symbol winds up in the output section. */ | |
8a3975e6 | 3638 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
146be91a HPN |
3639 | { |
3640 | if (! howto->partial_inplace) | |
3641 | { | |
3642 | /* For relocations with the addend in the | |
3643 | relocation, we need just to update the addend. | |
3644 | All real relocs are of type partial_inplace; this | |
3645 | code is mostly for completeness. */ | |
ab96bf03 | 3646 | rel->r_addend += sec->output_offset; |
146be91a HPN |
3647 | |
3648 | continue; | |
3649 | } | |
3650 | ||
3651 | /* Relocs of type partial_inplace need to pick up the | |
3652 | contents in the contents and add the offset resulting | |
3653 | from the changed location of the section symbol. | |
3654 | Using _bfd_final_link_relocate (e.g. goto | |
3655 | final_link_relocate) here would be wrong, because | |
3656 | relocations marked pc_relative would get the current | |
3657 | location subtracted, and we must only do that at the | |
3658 | final link. */ | |
3659 | r = _bfd_relocate_contents (howto, input_bfd, | |
3660 | sec->output_offset | |
3661 | + sym->st_value, | |
3662 | contents + rel->r_offset); | |
3663 | goto relocation_done; | |
3664 | } | |
8a3975e6 AO |
3665 | |
3666 | continue; | |
3667 | } | |
f8df10f4 JJ |
3668 | else if (! howto->partial_inplace) |
3669 | { | |
8517fae7 | 3670 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
f8df10f4 JJ |
3671 | addend = rel->r_addend; |
3672 | } | |
3673 | else if ((sec->flags & SEC_MERGE) | |
3674 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3675 | { | |
3676 | asection *msec; | |
3677 | ||
3678 | if (howto->rightshift || howto->src_mask != 0xffffffff) | |
3679 | { | |
4eca0228 | 3680 | _bfd_error_handler |
695344c0 | 3681 | /* xgettext:c-format */ |
2dcf00ce AM |
3682 | (_("%pB(%pA+%#" PRIx64 "): " |
3683 | "%s relocation against SEC_MERGE section"), | |
d003868e | 3684 | input_bfd, input_section, |
2dcf00ce | 3685 | (uint64_t) rel->r_offset, howto->name); |
b34976b6 | 3686 | return FALSE; |
f8df10f4 JJ |
3687 | } |
3688 | ||
067653c5 AM |
3689 | addend = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3690 | msec = sec; | |
3691 | addend = | |
c629eae0 | 3692 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) |
f8df10f4 JJ |
3693 | - relocation; |
3694 | addend += msec->output_section->vma + msec->output_offset; | |
3695 | bfd_put_32 (input_bfd, addend, contents + rel->r_offset); | |
3696 | addend = 0; | |
3697 | } | |
37c644f2 AO |
3698 | } |
3699 | else | |
3700 | { | |
560e09e9 NC |
3701 | /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */ |
3702 | ||
ab96bf03 | 3703 | relocation = 0; |
37c644f2 | 3704 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
8e45593f | 3705 | symname = h->root.root.string; |
37c644f2 AO |
3706 | while (h->root.type == bfd_link_hash_indirect |
3707 | || h->root.type == bfd_link_hash_warning) | |
211dc24b | 3708 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
37c644f2 AO |
3709 | if (h->root.type == bfd_link_hash_defined |
3710 | || h->root.type == bfd_link_hash_defweak) | |
3711 | { | |
b34976b6 | 3712 | bfd_boolean dyn; |
067653c5 | 3713 | |
e0af1f53 | 3714 | dyn = htab ? htab->root.dynamic_sections_created : FALSE; |
37c644f2 AO |
3715 | sec = h->root.u.def.section; |
3716 | /* In these cases, we don't need the relocation value. | |
3717 | We check specially because in some obscure cases | |
435b1e90 | 3718 | sec->output_section will be NULL. */ |
37c644f2 | 3719 | if (r_type == R_SH_GOTPC |
fbca6ad9 AO |
3720 | || r_type == R_SH_GOTPC_LOW16 |
3721 | || r_type == R_SH_GOTPC_MEDLOW16 | |
3722 | || r_type == R_SH_GOTPC_MEDHI16 | |
3723 | || r_type == R_SH_GOTPC_HI16 | |
3724 | || ((r_type == R_SH_PLT32 | |
3725 | || r_type == R_SH_PLT_LOW16 | |
3726 | || r_type == R_SH_PLT_MEDLOW16 | |
3727 | || r_type == R_SH_PLT_MEDHI16 | |
3728 | || r_type == R_SH_PLT_HI16) | |
37c644f2 | 3729 | && h->plt.offset != (bfd_vma) -1) |
fbca6ad9 | 3730 | || ((r_type == R_SH_GOT32 |
8e45593f NC |
3731 | || r_type == R_SH_GOT20 |
3732 | || r_type == R_SH_GOTFUNCDESC | |
3733 | || r_type == R_SH_GOTFUNCDESC20 | |
3734 | || r_type == R_SH_GOTOFFFUNCDESC | |
3735 | || r_type == R_SH_GOTOFFFUNCDESC20 | |
3736 | || r_type == R_SH_FUNCDESC | |
fbca6ad9 AO |
3737 | || r_type == R_SH_GOT_LOW16 |
3738 | || r_type == R_SH_GOT_MEDLOW16 | |
3739 | || r_type == R_SH_GOT_MEDHI16 | |
3740 | || r_type == R_SH_GOT_HI16) | |
0e1862bb L |
3741 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
3742 | bfd_link_pic (info), | |
3743 | h) | |
3744 | && (! bfd_link_pic (info) | |
37c644f2 | 3745 | || (! info->symbolic && h->dynindx != -1) |
f5385ebf | 3746 | || !h->def_regular)) |
37c644f2 AO |
3747 | /* The cases above are those in which relocation is |
3748 | overwritten in the switch block below. The cases | |
3749 | below are those in which we must defer relocation | |
3750 | to run-time, because we can't resolve absolute | |
3751 | addresses when creating a shared library. */ | |
0e1862bb | 3752 | || (bfd_link_pic (info) |
37c644f2 | 3753 | && ((! info->symbolic && h->dynindx != -1) |
f5385ebf | 3754 | || !h->def_regular) |
37c644f2 | 3755 | && ((r_type == R_SH_DIR32 |
f5385ebf | 3756 | && !h->forced_local) |
f50ad433 KK |
3757 | || (r_type == R_SH_REL32 |
3758 | && !SYMBOL_CALLS_LOCAL (info, h))) | |
37c644f2 AO |
3759 | && ((input_section->flags & SEC_ALLOC) != 0 |
3760 | /* DWARF will emit R_SH_DIR32 relocations in its | |
3761 | sections against symbols defined externally | |
3762 | in shared libraries. We can't do anything | |
3763 | with them here. */ | |
067653c5 | 3764 | || ((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 3765 | && h->def_dynamic))) |
1448fa32 KK |
3766 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
3767 | sections because such sections are not SEC_ALLOC and | |
3768 | thus ld.so will not process them. */ | |
3769 | || (sec->output_section == NULL | |
3770 | && ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 3771 | && h->def_dynamic)) |
3376eaf5 | 3772 | || (sec->output_section == NULL |
8e45593f NC |
3773 | && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE |
3774 | || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD))) | |
ab96bf03 AM |
3775 | ; |
3776 | else if (sec->output_section != NULL) | |
fad3d2c1 | 3777 | relocation = (h->root.u.def.value |
ab96bf03 | 3778 | + sec->output_section->vma |
fad3d2c1 | 3779 | + sec->output_offset); |
0e1862bb | 3780 | else if (!bfd_link_relocatable (info) |
1d5316ab AM |
3781 | && (_bfd_elf_section_offset (output_bfd, info, |
3782 | input_section, | |
3783 | rel->r_offset) | |
3784 | != (bfd_vma) -1)) | |
37c644f2 | 3785 | { |
4eca0228 | 3786 | _bfd_error_handler |
695344c0 | 3787 | /* xgettext:c-format */ |
2dcf00ce AM |
3788 | (_("%pB(%pA+%#" PRIx64 "): " |
3789 | "unresolvable %s relocation against symbol `%s'"), | |
843fe662 L |
3790 | input_bfd, |
3791 | input_section, | |
2dcf00ce | 3792 | (uint64_t) rel->r_offset, |
843fe662 L |
3793 | howto->name, |
3794 | h->root.root.string); | |
b34976b6 | 3795 | return FALSE; |
37c644f2 | 3796 | } |
37c644f2 AO |
3797 | } |
3798 | else if (h->root.type == bfd_link_hash_undefweak) | |
6ee6e05a | 3799 | resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h); |
59c2e50f | 3800 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
067653c5 | 3801 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
ab96bf03 | 3802 | ; |
0e1862bb | 3803 | else if (!bfd_link_relocatable (info)) |
95a51568 FS |
3804 | info->callbacks->undefined_symbol |
3805 | (info, h->root.root.string, input_bfd, input_section, | |
3806 | rel->r_offset, | |
3807 | (info->unresolved_syms_in_objects == RM_DIAGNOSE | |
3808 | && !info->warn_unresolved_syms) | |
3809 | || ELF_ST_VISIBILITY (h->other)); | |
3810 | } | |
37c644f2 | 3811 | |
dbaa2011 | 3812 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 3813 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3814 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 3815 | |
0e1862bb | 3816 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
3817 | continue; |
3818 | ||
8e45593f NC |
3819 | /* Check for inter-segment relocations in FDPIC files. Most |
3820 | relocations connect the relocation site to the location of | |
3821 | the target symbol, but there are some exceptions below. */ | |
3822 | check_segment[0] = isec_segment; | |
3823 | if (sec != NULL) | |
3824 | check_segment[1] = sh_elf_osec_to_segment (output_bfd, | |
3825 | sec->output_section); | |
3826 | else | |
3827 | check_segment[1] = -1; | |
3828 | ||
435b1e90 | 3829 | switch ((int) r_type) |
37c644f2 AO |
3830 | { |
3831 | final_link_relocate: | |
3832 | /* COFF relocs don't use the addend. The addend is used for | |
435b1e90 | 3833 | R_SH_DIR32 to be compatible with other compilers. */ |
37c644f2 AO |
3834 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3835 | contents, rel->r_offset, | |
3836 | relocation, addend); | |
3837 | break; | |
3838 | ||
3839 | case R_SH_IND12W: | |
cd6ec716 DD |
3840 | goto final_link_relocate; |
3841 | ||
37c644f2 AO |
3842 | case R_SH_DIR8WPN: |
3843 | case R_SH_DIR8WPZ: | |
3844 | case R_SH_DIR8WPL: | |
cd6ec716 DD |
3845 | /* If the reloc is against the start of this section, then |
3846 | the assembler has already taken care of it and the reloc | |
3847 | is here only to assist in relaxing. If the reloc is not | |
3848 | against the start of this section, then it's against an | |
3849 | external symbol and we must deal with it ourselves. */ | |
3850 | if (input_section->output_section->vma + input_section->output_offset | |
3851 | != relocation) | |
3852 | { | |
3853 | int disp = (relocation | |
3854 | - input_section->output_section->vma | |
3855 | - input_section->output_offset | |
3856 | - rel->r_offset); | |
3857 | int mask = 0; | |
3858 | switch (r_type) | |
3859 | { | |
3860 | case R_SH_DIR8WPN: | |
3861 | case R_SH_DIR8WPZ: mask = 1; break; | |
3862 | case R_SH_DIR8WPL: mask = 3; break; | |
3863 | default: mask = 0; break; | |
3864 | } | |
3865 | if (disp & mask) | |
3866 | { | |
4eca0228 | 3867 | _bfd_error_handler |
695344c0 | 3868 | /* xgettext:c-format */ |
2dcf00ce AM |
3869 | (_("%pB: %#" PRIx64 ": fatal: " |
3870 | "unaligned branch target for relax-support relocation"), | |
4eca0228 | 3871 | input_section->owner, |
2dcf00ce | 3872 | (uint64_t) rel->r_offset); |
cd6ec716 | 3873 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3874 | return FALSE; |
cd6ec716 DD |
3875 | } |
3876 | relocation -= 4; | |
3877 | goto final_link_relocate; | |
3878 | } | |
3879 | r = bfd_reloc_ok; | |
3880 | break; | |
37c644f2 AO |
3881 | |
3882 | default: | |
3883 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3884 | return FALSE; |
37c644f2 | 3885 | |
d38eb334 DD |
3886 | case R_SH_DIR16: |
3887 | case R_SH_DIR8: | |
3888 | case R_SH_DIR8U: | |
3889 | case R_SH_DIR8S: | |
3890 | case R_SH_DIR4U: | |
3891 | goto final_link_relocate; | |
3892 | ||
3893 | case R_SH_DIR8UL: | |
3894 | case R_SH_DIR4UL: | |
3895 | if (relocation & 3) | |
3896 | { | |
4eca0228 | 3897 | _bfd_error_handler |
695344c0 | 3898 | /* xgettext:c-format */ |
2dcf00ce AM |
3899 | (_("%pB: %#" PRIx64 ": fatal: " |
3900 | "unaligned %s relocation %#" PRIx64), | |
3901 | input_section->owner, (uint64_t) rel->r_offset, | |
3902 | howto->name, (uint64_t) relocation); | |
d38eb334 DD |
3903 | bfd_set_error (bfd_error_bad_value); |
3904 | return FALSE; | |
3905 | } | |
3906 | goto final_link_relocate; | |
3907 | ||
3908 | case R_SH_DIR8UW: | |
3909 | case R_SH_DIR8SW: | |
3910 | case R_SH_DIR4UW: | |
3911 | if (relocation & 1) | |
3912 | { | |
4eca0228 | 3913 | _bfd_error_handler |
695344c0 | 3914 | /* xgettext:c-format */ |
2dcf00ce AM |
3915 | (_("%pB: %#" PRIx64 ": fatal: " |
3916 | "unaligned %s relocation %#" PRIx64 ""), | |
4eca0228 | 3917 | input_section->owner, |
2dcf00ce AM |
3918 | (uint64_t) rel->r_offset, howto->name, |
3919 | (uint64_t) relocation); | |
d38eb334 DD |
3920 | bfd_set_error (bfd_error_bad_value); |
3921 | return FALSE; | |
3922 | } | |
3923 | goto final_link_relocate; | |
3924 | ||
3925 | case R_SH_PSHA: | |
3926 | if ((signed int)relocation < -32 | |
3927 | || (signed int)relocation > 32) | |
3928 | { | |
4eca0228 | 3929 | _bfd_error_handler |
695344c0 | 3930 | /* xgettext:c-format */ |
2dcf00ce AM |
3931 | (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64 |
3932 | " not in range -32..32"), | |
4eca0228 | 3933 | input_section->owner, |
2dcf00ce AM |
3934 | (uint64_t) rel->r_offset, |
3935 | (int64_t) relocation); | |
d38eb334 DD |
3936 | bfd_set_error (bfd_error_bad_value); |
3937 | return FALSE; | |
3938 | } | |
3939 | goto final_link_relocate; | |
3940 | ||
3941 | case R_SH_PSHL: | |
3942 | if ((signed int)relocation < -16 | |
3943 | || (signed int)relocation > 16) | |
3944 | { | |
4eca0228 | 3945 | _bfd_error_handler |
695344c0 | 3946 | /* xgettext:c-format */ |
2dcf00ce AM |
3947 | (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64 |
3948 | " not in range -32..32"), | |
4eca0228 | 3949 | input_section->owner, |
2dcf00ce AM |
3950 | (uint64_t) rel->r_offset, |
3951 | (int64_t) relocation); | |
d38eb334 DD |
3952 | bfd_set_error (bfd_error_bad_value); |
3953 | return FALSE; | |
3954 | } | |
3955 | goto final_link_relocate; | |
3956 | ||
37c644f2 AO |
3957 | case R_SH_DIR32: |
3958 | case R_SH_REL32: | |
0e1862bb | 3959 | if (bfd_link_pic (info) |
04e534c3 | 3960 | && (h == NULL |
6ee6e05a L |
3961 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
3962 | && !resolved_to_zero) | |
04e534c3 | 3963 | || h->root.type != bfd_link_hash_undefweak) |
cf35638d | 3964 | && r_symndx != STN_UNDEF |
37c644f2 | 3965 | && (input_section->flags & SEC_ALLOC) != 0 |
3348747a | 3966 | && !is_vxworks_tls |
46e993b9 | 3967 | && (r_type == R_SH_DIR32 |
3d85aebe | 3968 | || !SYMBOL_CALLS_LOCAL (info, h))) |
37c644f2 AO |
3969 | { |
3970 | Elf_Internal_Rela outrel; | |
947216bf | 3971 | bfd_byte *loc; |
b34976b6 | 3972 | bfd_boolean skip, relocate; |
37c644f2 AO |
3973 | |
3974 | /* When generating a shared object, these relocations | |
3975 | are copied into the output file to be resolved at run | |
3976 | time. */ | |
3977 | ||
3978 | if (sreloc == NULL) | |
3979 | { | |
83bac4b0 NC |
3980 | sreloc = _bfd_elf_get_dynamic_reloc_section |
3981 | (input_bfd, input_section, /*rela?*/ TRUE); | |
3982 | if (sreloc == NULL) | |
b34976b6 | 3983 | return FALSE; |
37c644f2 AO |
3984 | } |
3985 | ||
b34976b6 AM |
3986 | skip = FALSE; |
3987 | relocate = FALSE; | |
37c644f2 | 3988 | |
c629eae0 JJ |
3989 | outrel.r_offset = |
3990 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3991 | rel->r_offset); | |
3992 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 3993 | skip = TRUE; |
0bb2d96a | 3994 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 3995 | skip = TRUE, relocate = TRUE; |
37c644f2 AO |
3996 | outrel.r_offset += (input_section->output_section->vma |
3997 | + input_section->output_offset); | |
3998 | ||
3999 | if (skip) | |
0bb2d96a | 4000 | memset (&outrel, 0, sizeof outrel); |
37c644f2 AO |
4001 | else if (r_type == R_SH_REL32) |
4002 | { | |
4003 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
37c644f2 | 4004 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32); |
146be91a | 4005 | outrel.r_addend |
55e6e397 RS |
4006 | = (howto->partial_inplace |
4007 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4008 | : addend); | |
37c644f2 | 4009 | } |
e0af1f53 | 4010 | else if (fdpic_p |
8e45593f NC |
4011 | && (h == NULL |
4012 | || ((info->symbolic || h->dynindx == -1) | |
4013 | && h->def_regular))) | |
4014 | { | |
4015 | int dynindx; | |
4016 | ||
4017 | BFD_ASSERT (sec != NULL); | |
4018 | BFD_ASSERT (sec->output_section != NULL); | |
4019 | dynindx = elf_section_data (sec->output_section)->dynindx; | |
4020 | outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
4021 | outrel.r_addend = relocation; | |
4022 | outrel.r_addend | |
4023 | += (howto->partial_inplace | |
4024 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4025 | : addend); | |
4026 | outrel.r_addend -= sec->output_section->vma; | |
4027 | } | |
37c644f2 AO |
4028 | else |
4029 | { | |
4030 | /* h->dynindx may be -1 if this symbol was marked to | |
4031 | become local. */ | |
4032 | if (h == NULL | |
4033 | || ((info->symbolic || h->dynindx == -1) | |
f5385ebf | 4034 | && h->def_regular)) |
37c644f2 | 4035 | { |
55e6e397 | 4036 | relocate = howto->partial_inplace; |
37c644f2 | 4037 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); |
37c644f2 AO |
4038 | } |
4039 | else | |
4040 | { | |
4041 | BFD_ASSERT (h->dynindx != -1); | |
37c644f2 | 4042 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32); |
37c644f2 | 4043 | } |
55e6e397 RS |
4044 | outrel.r_addend = relocation; |
4045 | outrel.r_addend | |
4046 | += (howto->partial_inplace | |
4047 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4048 | : addend); | |
37c644f2 AO |
4049 | } |
4050 | ||
947216bf AM |
4051 | loc = sreloc->contents; |
4052 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4053 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 | 4054 | |
8e45593f NC |
4055 | check_segment[0] = check_segment[1] = -1; |
4056 | ||
37c644f2 AO |
4057 | /* If this reloc is against an external symbol, we do |
4058 | not want to fiddle with the addend. Otherwise, we | |
4059 | need to include the symbol value so that it becomes | |
4060 | an addend for the dynamic reloc. */ | |
4061 | if (! relocate) | |
4062 | continue; | |
4063 | } | |
0e1862bb | 4064 | else if (fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
4065 | && r_type == R_SH_DIR32 |
4066 | && (input_section->flags & SEC_ALLOC) != 0) | |
4067 | { | |
4068 | bfd_vma offset; | |
4069 | ||
e0af1f53 MR |
4070 | BFD_ASSERT (htab); |
4071 | ||
8e45593f NC |
4072 | if (sh_elf_osec_readonly_p (output_bfd, |
4073 | input_section->output_section)) | |
4074 | { | |
4eca0228 | 4075 | _bfd_error_handler |
695344c0 | 4076 | /* xgettext:c-format */ |
2dcf00ce AM |
4077 | (_("%pB(%pA+%#" PRIx64 "): " |
4078 | "cannot emit fixup to `%s' in read-only section"), | |
8e45593f NC |
4079 | input_bfd, |
4080 | input_section, | |
2dcf00ce | 4081 | (uint64_t) rel->r_offset, |
8e45593f NC |
4082 | symname); |
4083 | return FALSE; | |
4084 | } | |
4085 | ||
4086 | offset = _bfd_elf_section_offset (output_bfd, info, | |
4087 | input_section, rel->r_offset); | |
4088 | if (offset != (bfd_vma)-1) | |
4089 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4090 | input_section->output_section->vma | |
4091 | + input_section->output_offset | |
4092 | + rel->r_offset); | |
4093 | ||
4094 | check_segment[0] = check_segment[1] = -1; | |
4095 | } | |
a6f713fc KK |
4096 | /* We don't want warnings for non-NULL tests on undefined weak |
4097 | symbols. */ | |
4098 | else if (r_type == R_SH_REL32 | |
4099 | && h | |
1b786873 | 4100 | && h->root.type == bfd_link_hash_undefweak) |
a6f713fc | 4101 | check_segment[0] = check_segment[1] = -1; |
37c644f2 AO |
4102 | goto final_link_relocate; |
4103 | ||
fbca6ad9 | 4104 | case R_SH_GOTPLT32: |
fbca6ad9 AO |
4105 | /* Relocation is to the entry for this symbol in the |
4106 | procedure linkage table. */ | |
4107 | ||
4108 | if (h == NULL | |
f5385ebf | 4109 | || h->forced_local |
0e1862bb | 4110 | || ! bfd_link_pic (info) |
fbca6ad9 AO |
4111 | || info->symbolic |
4112 | || h->dynindx == -1 | |
4113 | || h->plt.offset == (bfd_vma) -1 | |
4114 | || h->got.offset != (bfd_vma) -1) | |
4115 | goto force_got; | |
4116 | ||
4117 | /* Relocation is to the entry for this symbol in the global | |
4118 | offset table extension for the procedure linkage table. */ | |
fbca6ad9 | 4119 | |
e0af1f53 | 4120 | BFD_ASSERT (htab); |
067653c5 | 4121 | BFD_ASSERT (sgotplt != NULL); |
fbca6ad9 | 4122 | relocation = (sgotplt->output_offset |
55e6e397 RS |
4123 | + (get_plt_index (htab->plt_info, h->plt.offset) |
4124 | + 3) * 4); | |
fbca6ad9 AO |
4125 | |
4126 | #ifdef GOT_BIAS | |
4127 | relocation -= GOT_BIAS; | |
4128 | #endif | |
4129 | ||
4130 | goto final_link_relocate; | |
4131 | ||
4132 | force_got: | |
37c644f2 | 4133 | case R_SH_GOT32: |
8e45593f | 4134 | case R_SH_GOT20: |
37c644f2 AO |
4135 | /* Relocation is to the entry for this symbol in the global |
4136 | offset table. */ | |
067653c5 | 4137 | |
e0af1f53 | 4138 | BFD_ASSERT (htab); |
067653c5 | 4139 | BFD_ASSERT (sgot != NULL); |
8e45593f | 4140 | check_segment[0] = check_segment[1] = -1; |
37c644f2 AO |
4141 | |
4142 | if (h != NULL) | |
4143 | { | |
b34976b6 | 4144 | bfd_boolean dyn; |
37c644f2 AO |
4145 | |
4146 | off = h->got.offset; | |
4147 | BFD_ASSERT (off != (bfd_vma) -1); | |
4148 | ||
067653c5 | 4149 | dyn = htab->root.dynamic_sections_created; |
0e1862bb L |
4150 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
4151 | bfd_link_pic (info), | |
4152 | h) | |
4153 | || (bfd_link_pic (info) | |
3d85aebe | 4154 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
6ee6e05a L |
4155 | || ((ELF_ST_VISIBILITY (h->other) |
4156 | || resolved_to_zero) | |
04e534c3 | 4157 | && h->root.type == bfd_link_hash_undefweak)) |
37c644f2 AO |
4158 | { |
4159 | /* This is actually a static link, or it is a | |
4160 | -Bsymbolic link and the symbol is defined | |
4161 | locally, or the symbol was forced to be local | |
4162 | because of a version file. We must initialize | |
4163 | this entry in the global offset table. Since the | |
4164 | offset must always be a multiple of 4, we use the | |
4165 | least significant bit to record whether we have | |
4166 | initialized it already. | |
4167 | ||
4168 | When doing a dynamic link, we create a .rela.got | |
4169 | relocation entry to initialize the value. This | |
4170 | is done in the finish_dynamic_symbol routine. */ | |
4171 | if ((off & 1) != 0) | |
4172 | off &= ~1; | |
4173 | else | |
4174 | { | |
4175 | bfd_put_32 (output_bfd, relocation, | |
4176 | sgot->contents + off); | |
211dc24b | 4177 | h->got.offset |= 1; |
8e45593f NC |
4178 | |
4179 | /* If we initialize the GOT entry here with a valid | |
4180 | symbol address, also add a fixup. */ | |
0e1862bb | 4181 | if (fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
4182 | && sh_elf_hash_entry (h)->got_type == GOT_NORMAL |
4183 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
4184 | || h->root.type != bfd_link_hash_undefweak)) | |
4185 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4186 | sgot->output_section->vma | |
4187 | + sgot->output_offset | |
4188 | + off); | |
37c644f2 AO |
4189 | } |
4190 | } | |
4191 | ||
8e45593f | 4192 | relocation = sh_elf_got_offset (htab) + off; |
37c644f2 AO |
4193 | } |
4194 | else | |
4195 | { | |
37c644f2 AO |
4196 | BFD_ASSERT (local_got_offsets != NULL |
4197 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
4198 | ||
4199 | off = local_got_offsets[r_symndx]; | |
4200 | ||
4201 | /* The offset must always be a multiple of 4. We use | |
4202 | the least significant bit to record whether we have | |
4203 | already generated the necessary reloc. */ | |
4204 | if ((off & 1) != 0) | |
4205 | off &= ~1; | |
4206 | else | |
4207 | { | |
4208 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
4209 | ||
0e1862bb | 4210 | if (bfd_link_pic (info)) |
37c644f2 | 4211 | { |
37c644f2 | 4212 | Elf_Internal_Rela outrel; |
947216bf | 4213 | bfd_byte *loc; |
37c644f2 | 4214 | |
37c644f2 AO |
4215 | outrel.r_offset = (sgot->output_section->vma |
4216 | + sgot->output_offset | |
4217 | + off); | |
e0af1f53 | 4218 | if (fdpic_p) |
8e45593f NC |
4219 | { |
4220 | int dynindx | |
4221 | = elf_section_data (sec->output_section)->dynindx; | |
4222 | outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
4223 | outrel.r_addend = relocation; | |
4224 | outrel.r_addend -= sec->output_section->vma; | |
4225 | } | |
4226 | else | |
4227 | { | |
4228 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
4229 | outrel.r_addend = relocation; | |
4230 | } | |
947216bf AM |
4231 | loc = srelgot->contents; |
4232 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
4233 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 | 4234 | } |
e0af1f53 | 4235 | else if (fdpic_p |
8e45593f NC |
4236 | && (sh_elf_local_got_type (input_bfd) [r_symndx] |
4237 | == GOT_NORMAL)) | |
4238 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4239 | sgot->output_section->vma | |
4240 | + sgot->output_offset | |
4241 | + off); | |
37c644f2 | 4242 | |
211dc24b | 4243 | local_got_offsets[r_symndx] |= 1; |
37c644f2 AO |
4244 | } |
4245 | ||
8e45593f | 4246 | relocation = sh_elf_got_offset (htab) + off; |
37c644f2 AO |
4247 | } |
4248 | ||
fbca6ad9 | 4249 | #ifdef GOT_BIAS |
067653c5 | 4250 | relocation -= GOT_BIAS; |
fbca6ad9 AO |
4251 | #endif |
4252 | ||
8e45593f NC |
4253 | if (r_type == R_SH_GOT20) |
4254 | { | |
4255 | r = install_movi20_field (output_bfd, relocation + addend, | |
4256 | input_bfd, input_section, contents, | |
4257 | rel->r_offset); | |
4258 | break; | |
4259 | } | |
4260 | else | |
4261 | goto final_link_relocate; | |
37c644f2 AO |
4262 | |
4263 | case R_SH_GOTOFF: | |
8e45593f | 4264 | case R_SH_GOTOFF20: |
8e45593f NC |
4265 | /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which |
4266 | we place at the start of the .got.plt section. This is the same | |
4267 | as the start of the output .got section, unless there are function | |
4268 | descriptors in front of it. */ | |
e0af1f53 | 4269 | BFD_ASSERT (htab); |
8e45593f NC |
4270 | BFD_ASSERT (sgotplt != NULL); |
4271 | check_segment[0] = got_segment; | |
4272 | relocation -= sgotplt->output_section->vma + sgotplt->output_offset | |
4273 | + htab->root.hgot->root.u.def.value; | |
37c644f2 | 4274 | |
fbca6ad9 AO |
4275 | #ifdef GOT_BIAS |
4276 | relocation -= GOT_BIAS; | |
4277 | #endif | |
4278 | ||
4279 | addend = rel->r_addend; | |
4280 | ||
8e45593f NC |
4281 | if (r_type == R_SH_GOTOFF20) |
4282 | { | |
4283 | r = install_movi20_field (output_bfd, relocation + addend, | |
4284 | input_bfd, input_section, contents, | |
4285 | rel->r_offset); | |
4286 | break; | |
4287 | } | |
4288 | else | |
4289 | goto final_link_relocate; | |
37c644f2 AO |
4290 | |
4291 | case R_SH_GOTPC: | |
4292 | /* Use global offset table as symbol value. */ | |
4293 | ||
8e45593f NC |
4294 | BFD_ASSERT (sgotplt != NULL); |
4295 | relocation = sgotplt->output_section->vma + sgotplt->output_offset; | |
37c644f2 | 4296 | |
fbca6ad9 AO |
4297 | #ifdef GOT_BIAS |
4298 | relocation += GOT_BIAS; | |
4299 | #endif | |
4300 | ||
4301 | addend = rel->r_addend; | |
4302 | ||
37c644f2 AO |
4303 | goto final_link_relocate; |
4304 | ||
4305 | case R_SH_PLT32: | |
4306 | /* Relocation is to the entry for this symbol in the | |
4307 | procedure linkage table. */ | |
4308 | ||
4309 | /* Resolve a PLT reloc against a local symbol directly, | |
4310 | without using the procedure linkage table. */ | |
4311 | if (h == NULL) | |
4312 | goto final_link_relocate; | |
4313 | ||
8e45593f NC |
4314 | /* We don't want to warn on calls to undefined weak symbols, |
4315 | as calls to them must be protected by non-NULL tests | |
4316 | anyway, and unprotected calls would invoke undefined | |
4317 | behavior. */ | |
4318 | if (h->root.type == bfd_link_hash_undefweak) | |
4319 | check_segment[0] = check_segment[1] = -1; | |
4320 | ||
f5385ebf | 4321 | if (h->forced_local) |
37c644f2 AO |
4322 | goto final_link_relocate; |
4323 | ||
4324 | if (h->plt.offset == (bfd_vma) -1) | |
4325 | { | |
4326 | /* We didn't make a PLT entry for this symbol. This | |
4327 | happens when statically linking PIC code, or when | |
4328 | using -Bsymbolic. */ | |
4329 | goto final_link_relocate; | |
4330 | } | |
4331 | ||
067653c5 | 4332 | BFD_ASSERT (splt != NULL); |
8e45593f | 4333 | check_segment[1] = plt_segment; |
37c644f2 AO |
4334 | relocation = (splt->output_section->vma |
4335 | + splt->output_offset | |
4336 | + h->plt.offset); | |
4337 | ||
fbca6ad9 AO |
4338 | addend = rel->r_addend; |
4339 | ||
37c644f2 AO |
4340 | goto final_link_relocate; |
4341 | ||
8e45593f NC |
4342 | /* Relocation is to the canonical function descriptor for this |
4343 | symbol, possibly via the GOT. Initialize the GOT | |
4344 | entry and function descriptor if necessary. */ | |
4345 | case R_SH_GOTFUNCDESC: | |
4346 | case R_SH_GOTFUNCDESC20: | |
4347 | case R_SH_FUNCDESC: | |
4348 | { | |
4349 | int dynindx = -1; | |
4350 | asection *reloc_section; | |
4351 | bfd_vma reloc_offset; | |
4352 | int reloc_type = R_SH_FUNCDESC; | |
4353 | ||
e0af1f53 MR |
4354 | BFD_ASSERT (htab); |
4355 | ||
8e45593f NC |
4356 | check_segment[0] = check_segment[1] = -1; |
4357 | ||
4358 | /* FIXME: See what FRV does for global symbols in the | |
4359 | executable, with --export-dynamic. Do they need ld.so | |
4360 | to allocate official descriptors? See what this code | |
4361 | does. */ | |
4362 | ||
4363 | relocation = 0; | |
4364 | addend = 0; | |
4365 | ||
4366 | if (r_type == R_SH_FUNCDESC) | |
4367 | { | |
4368 | reloc_section = input_section; | |
4369 | reloc_offset = rel->r_offset; | |
4370 | } | |
4371 | else | |
4372 | { | |
e0af1f53 | 4373 | reloc_section = sgot; |
8e45593f NC |
4374 | |
4375 | if (h != NULL) | |
4376 | reloc_offset = h->got.offset; | |
4377 | else | |
4378 | { | |
4379 | BFD_ASSERT (local_got_offsets != NULL); | |
4380 | reloc_offset = local_got_offsets[r_symndx]; | |
4381 | } | |
4382 | BFD_ASSERT (reloc_offset != MINUS_ONE); | |
4383 | ||
4384 | if (reloc_offset & 1) | |
4385 | { | |
4386 | reloc_offset &= ~1; | |
4387 | goto funcdesc_done_got; | |
4388 | } | |
4389 | } | |
4390 | ||
4391 | if (h && h->root.type == bfd_link_hash_undefweak | |
4392 | && (SYMBOL_CALLS_LOCAL (info, h) | |
4393 | || !htab->root.dynamic_sections_created)) | |
4394 | /* Undefined weak symbol which will not be dynamically | |
4395 | resolved later; leave it at zero. */ | |
4396 | goto funcdesc_leave_zero; | |
4397 | else if (SYMBOL_CALLS_LOCAL (info, h) | |
4398 | && ! SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4399 | { | |
4400 | /* If the symbol needs a non-local function descriptor | |
4401 | but binds locally (i.e., its visibility is | |
4402 | protected), emit a dynamic relocation decayed to | |
4403 | section+offset. This is an optimization; the dynamic | |
4404 | linker would resolve our function descriptor request | |
4405 | to our copy of the function anyway. */ | |
4406 | dynindx = elf_section_data (h->root.u.def.section | |
4407 | ->output_section)->dynindx; | |
4408 | relocation += h->root.u.def.section->output_offset | |
4409 | + h->root.u.def.value; | |
4410 | } | |
4411 | else if (! SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4412 | { | |
4413 | /* If the symbol is dynamic and there will be dynamic | |
4414 | symbol resolution because we are or are linked with a | |
4415 | shared library, emit a FUNCDESC relocation such that | |
4416 | the dynamic linker will allocate the function | |
4417 | descriptor. */ | |
4418 | BFD_ASSERT (h->dynindx != -1); | |
4419 | dynindx = h->dynindx; | |
4420 | } | |
4421 | else | |
4422 | { | |
4423 | bfd_vma offset; | |
4424 | ||
4425 | /* Otherwise, we know we have a private function | |
4426 | descriptor, so reference it directly. */ | |
4427 | reloc_type = R_SH_DIR32; | |
4428 | dynindx = elf_section_data (htab->sfuncdesc | |
4429 | ->output_section)->dynindx; | |
4430 | ||
4431 | if (h) | |
4432 | { | |
4433 | offset = sh_elf_hash_entry (h)->funcdesc.offset; | |
4434 | BFD_ASSERT (offset != MINUS_ONE); | |
4435 | if ((offset & 1) == 0) | |
4436 | { | |
4437 | if (!sh_elf_initialize_funcdesc (output_bfd, info, h, | |
4438 | offset, NULL, 0)) | |
4439 | return FALSE; | |
4440 | sh_elf_hash_entry (h)->funcdesc.offset |= 1; | |
4441 | } | |
4442 | } | |
4443 | else | |
4444 | { | |
4445 | union gotref *local_funcdesc; | |
4446 | ||
4447 | local_funcdesc = sh_elf_local_funcdesc (input_bfd); | |
4448 | offset = local_funcdesc[r_symndx].offset; | |
4449 | BFD_ASSERT (offset != MINUS_ONE); | |
4450 | if ((offset & 1) == 0) | |
4451 | { | |
4452 | if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL, | |
4453 | offset, sec, | |
4454 | sym->st_value)) | |
4455 | return FALSE; | |
4456 | local_funcdesc[r_symndx].offset |= 1; | |
4457 | } | |
4458 | } | |
4459 | ||
4460 | relocation = htab->sfuncdesc->output_offset + (offset & ~1); | |
4461 | } | |
4462 | ||
0e1862bb | 4463 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
4464 | { |
4465 | bfd_vma offset; | |
4466 | ||
4467 | if (sh_elf_osec_readonly_p (output_bfd, | |
4468 | reloc_section->output_section)) | |
4469 | { | |
4eca0228 | 4470 | _bfd_error_handler |
695344c0 | 4471 | /* xgettext:c-format */ |
2dcf00ce AM |
4472 | (_("%pB(%pA+%#" PRIx64 "): " |
4473 | "cannot emit fixup to `%s' in read-only section"), | |
8e45593f NC |
4474 | input_bfd, |
4475 | input_section, | |
2dcf00ce | 4476 | (uint64_t) rel->r_offset, |
8e45593f NC |
4477 | symname); |
4478 | return FALSE; | |
4479 | } | |
4480 | ||
4481 | offset = _bfd_elf_section_offset (output_bfd, info, | |
4482 | reloc_section, reloc_offset); | |
4483 | ||
4484 | if (offset != (bfd_vma)-1) | |
4485 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4486 | offset | |
4487 | + reloc_section->output_section->vma | |
4488 | + reloc_section->output_offset); | |
4489 | } | |
4490 | else if ((reloc_section->output_section->flags | |
4491 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
4492 | { | |
4493 | bfd_vma offset; | |
4494 | ||
4495 | if (sh_elf_osec_readonly_p (output_bfd, | |
4496 | reloc_section->output_section)) | |
4497 | { | |
4498 | info->callbacks->warning | |
4499 | (info, | |
4500 | _("cannot emit dynamic relocations in read-only section"), | |
4501 | symname, input_bfd, reloc_section, reloc_offset); | |
4502 | return FALSE; | |
4503 | } | |
4504 | ||
8e45593f NC |
4505 | offset = _bfd_elf_section_offset (output_bfd, info, |
4506 | reloc_section, reloc_offset); | |
4507 | ||
4508 | if (offset != (bfd_vma)-1) | |
4509 | sh_elf_add_dyn_reloc (output_bfd, srelgot, | |
4510 | offset | |
4511 | + reloc_section->output_section->vma | |
4512 | + reloc_section->output_offset, | |
4513 | reloc_type, dynindx, relocation); | |
4514 | ||
4515 | if (r_type == R_SH_FUNCDESC) | |
4516 | { | |
4517 | r = bfd_reloc_ok; | |
4518 | break; | |
4519 | } | |
4520 | else | |
4521 | { | |
4522 | relocation = 0; | |
4523 | goto funcdesc_leave_zero; | |
4524 | } | |
4525 | } | |
4526 | ||
4527 | if (SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4528 | relocation += htab->sfuncdesc->output_section->vma; | |
4529 | funcdesc_leave_zero: | |
4530 | if (r_type != R_SH_FUNCDESC) | |
4531 | { | |
4532 | bfd_put_32 (output_bfd, relocation, | |
4533 | reloc_section->contents + reloc_offset); | |
4534 | if (h != NULL) | |
4535 | h->got.offset |= 1; | |
4536 | else | |
4537 | local_got_offsets[r_symndx] |= 1; | |
4538 | ||
4539 | funcdesc_done_got: | |
4540 | ||
4541 | relocation = sh_elf_got_offset (htab) + reloc_offset; | |
4542 | #ifdef GOT_BIAS | |
4543 | relocation -= GOT_BIAS; | |
4544 | #endif | |
4545 | } | |
4546 | if (r_type == R_SH_GOTFUNCDESC20) | |
4547 | { | |
4548 | r = install_movi20_field (output_bfd, relocation + addend, | |
4549 | input_bfd, input_section, contents, | |
4550 | rel->r_offset); | |
4551 | break; | |
4552 | } | |
4553 | else | |
4554 | goto final_link_relocate; | |
4555 | } | |
4556 | break; | |
4557 | ||
4558 | case R_SH_GOTOFFFUNCDESC: | |
4559 | case R_SH_GOTOFFFUNCDESC20: | |
4560 | /* FIXME: See R_SH_FUNCDESC comment about global symbols in the | |
4561 | executable and --export-dynamic. If such symbols get | |
4562 | ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC | |
4563 | for them. */ | |
e0af1f53 | 4564 | BFD_ASSERT (htab); |
8e45593f NC |
4565 | |
4566 | check_segment[0] = check_segment[1] = -1; | |
4567 | relocation = 0; | |
4568 | addend = rel->r_addend; | |
4569 | ||
4570 | if (h && (h->root.type == bfd_link_hash_undefweak | |
4571 | || !SYMBOL_FUNCDESC_LOCAL (info, h))) | |
4572 | { | |
4573 | _bfd_error_handler | |
695344c0 | 4574 | /* xgettext:c-format */ |
2dcf00ce AM |
4575 | (_("%pB(%pA+%#" PRIx64 "): " |
4576 | "%s relocation against external symbol \"%s\""), | |
4577 | input_bfd, input_section, (uint64_t) rel->r_offset, | |
4578 | howto->name, h->root.root.string); | |
8e45593f NC |
4579 | return FALSE; |
4580 | } | |
4581 | else | |
4582 | { | |
4583 | bfd_vma offset; | |
4584 | ||
4585 | /* Otherwise, we know we have a private function | |
4586 | descriptor, so reference it directly. */ | |
4587 | if (h) | |
4588 | { | |
4589 | offset = sh_elf_hash_entry (h)->funcdesc.offset; | |
4590 | BFD_ASSERT (offset != MINUS_ONE); | |
4591 | if ((offset & 1) == 0) | |
4592 | { | |
4593 | if (!sh_elf_initialize_funcdesc (output_bfd, info, h, | |
4594 | offset, NULL, 0)) | |
4595 | return FALSE; | |
4596 | sh_elf_hash_entry (h)->funcdesc.offset |= 1; | |
4597 | } | |
4598 | } | |
4599 | else | |
4600 | { | |
4601 | union gotref *local_funcdesc; | |
4602 | ||
4603 | local_funcdesc = sh_elf_local_funcdesc (input_bfd); | |
4604 | offset = local_funcdesc[r_symndx].offset; | |
4605 | BFD_ASSERT (offset != MINUS_ONE); | |
4606 | if ((offset & 1) == 0) | |
4607 | { | |
4608 | if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL, | |
4609 | offset, sec, | |
4610 | sym->st_value)) | |
4611 | return FALSE; | |
4612 | local_funcdesc[r_symndx].offset |= 1; | |
4613 | } | |
4614 | } | |
4615 | ||
4616 | relocation = htab->sfuncdesc->output_offset + (offset & ~1); | |
4617 | } | |
4618 | ||
e0af1f53 MR |
4619 | relocation -= (htab->root.hgot->root.u.def.value |
4620 | + sgotplt->output_offset); | |
8e45593f NC |
4621 | #ifdef GOT_BIAS |
4622 | relocation -= GOT_BIAS; | |
4623 | #endif | |
4624 | ||
4625 | if (r_type == R_SH_GOTOFFFUNCDESC20) | |
4626 | { | |
4627 | r = install_movi20_field (output_bfd, relocation + addend, | |
4628 | input_bfd, input_section, contents, | |
4629 | rel->r_offset); | |
4630 | break; | |
4631 | } | |
4632 | else | |
4633 | goto final_link_relocate; | |
4634 | ||
37c644f2 AO |
4635 | case R_SH_LOOP_START: |
4636 | { | |
4637 | static bfd_vma start, end; | |
4638 | ||
4639 | start = (relocation + rel->r_addend | |
4640 | - (sec->output_section->vma + sec->output_offset)); | |
4641 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
4642 | rel->r_offset, sec, start, end); | |
4643 | break; | |
4644 | ||
4645 | case R_SH_LOOP_END: | |
4646 | end = (relocation + rel->r_addend | |
4647 | - (sec->output_section->vma + sec->output_offset)); | |
4648 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
4649 | rel->r_offset, sec, start, end); | |
4650 | break; | |
4651 | } | |
3376eaf5 KK |
4652 | |
4653 | case R_SH_TLS_GD_32: | |
4654 | case R_SH_TLS_IE_32: | |
e0af1f53 | 4655 | BFD_ASSERT (htab); |
8e45593f | 4656 | check_segment[0] = check_segment[1] = -1; |
3376eaf5 | 4657 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); |
8e45593f | 4658 | got_type = GOT_UNKNOWN; |
3376eaf5 | 4659 | if (h == NULL && local_got_offsets) |
8e45593f | 4660 | got_type = sh_elf_local_got_type (input_bfd) [r_symndx]; |
3376eaf5 KK |
4661 | else if (h != NULL) |
4662 | { | |
8e45593f | 4663 | got_type = sh_elf_hash_entry (h)->got_type; |
0e1862bb | 4664 | if (! bfd_link_pic (info) |
3376eaf5 | 4665 | && (h->dynindx == -1 |
f5385ebf | 4666 | || h->def_regular)) |
267fb3c1 | 4667 | r_type = R_SH_TLS_LE_32; |
3376eaf5 KK |
4668 | } |
4669 | ||
8e45593f | 4670 | if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE) |
3376eaf5 KK |
4671 | r_type = R_SH_TLS_IE_32; |
4672 | ||
4673 | if (r_type == R_SH_TLS_LE_32) | |
4674 | { | |
4675 | bfd_vma offset; | |
4676 | unsigned short insn; | |
3376eaf5 KK |
4677 | |
4678 | if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32) | |
4679 | { | |
4680 | /* GD->LE transition: | |
4681 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
b34976b6 | 4682 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; |
3376eaf5 KK |
4683 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: |
4684 | We change it into: | |
4685 | mov.l 1f,r4; stc gbr,r0; add r4,r0; nop; | |
4686 | nop; nop; ... | |
4687 | 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */ | |
4688 | ||
4689 | offset = rel->r_offset; | |
a05b9f5e NC |
4690 | if (offset < 16) |
4691 | { | |
4692 | _bfd_error_handler | |
4693 | /* xgettext:c-format */ | |
4694 | (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64), | |
4695 | input_bfd, input_section, (uint64_t) offset); | |
4696 | return FALSE; | |
4697 | } | |
4698 | ||
3376eaf5 KK |
4699 | /* Size of GD instructions is 16 or 18. */ |
4700 | offset -= 16; | |
4701 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4702 | if ((insn & 0xff00) == 0xc700) | |
4703 | { | |
4704 | BFD_ASSERT (offset >= 2); | |
4705 | offset -= 2; | |
4706 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4707 | } | |
4708 | ||
a05b9f5e NC |
4709 | if ((insn & 0xff00) != 0xd400) |
4710 | _bfd_error_handler | |
4711 | /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */ | |
4712 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"), | |
4713 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4714 | ||
3376eaf5 | 4715 | insn = bfd_get_16 (input_bfd, contents + offset + 2); |
a05b9f5e NC |
4716 | |
4717 | if ((insn & 0xff00) != 0xc700) | |
4718 | _bfd_error_handler | |
4719 | /* xgettext:c-format */ | |
4720 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"), | |
4721 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4722 | ||
3376eaf5 | 4723 | insn = bfd_get_16 (input_bfd, contents + offset + 4); |
a05b9f5e NC |
4724 | if ((insn & 0xff00) != 0xd100) |
4725 | _bfd_error_handler | |
4726 | /* xgettext:c-format */ | |
4727 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"), | |
4728 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4729 | ||
3376eaf5 | 4730 | insn = bfd_get_16 (input_bfd, contents + offset + 6); |
a05b9f5e NC |
4731 | if (insn != 0x310c) |
4732 | _bfd_error_handler | |
4733 | /* xgettext:c-format */ | |
4734 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"), | |
4735 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4736 | ||
3376eaf5 | 4737 | insn = bfd_get_16 (input_bfd, contents + offset + 8); |
a05b9f5e NC |
4738 | if (insn != 0x410b) |
4739 | _bfd_error_handler | |
4740 | /* xgettext:c-format */ | |
4741 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"), | |
4742 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4743 | ||
3376eaf5 | 4744 | insn = bfd_get_16 (input_bfd, contents + offset + 10); |
a05b9f5e NC |
4745 | if (insn != 0x34cc) |
4746 | _bfd_error_handler | |
4747 | /* xgettext:c-format */ | |
4748 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"), | |
4749 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
3376eaf5 KK |
4750 | |
4751 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 2); | |
4752 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 4); | |
4753 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
4754 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4755 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4756 | } | |
4757 | else | |
4758 | { | |
91d6fa6a | 4759 | int target; |
3376eaf5 KK |
4760 | |
4761 | /* IE->LE transition: | |
a05b9f5e NC |
4762 | mov.l 1f,r0; |
4763 | stc gbr,rN; | |
4764 | mov.l @(r0,r12),rM; | |
4765 | bra 2f; | |
4766 | add ...; | |
4767 | .align 2; | |
4768 | 1: x@GOTTPOFF; | |
4769 | 2: | |
3376eaf5 | 4770 | We change it into: |
a05b9f5e NC |
4771 | mov.l .Ln,rM; |
4772 | stc gbr,rN; | |
4773 | nop; | |
4774 | ...; | |
4775 | 1: x@TPOFF; | |
4776 | 2:. */ | |
3376eaf5 KK |
4777 | |
4778 | offset = rel->r_offset; | |
a05b9f5e NC |
4779 | if (offset < 16) |
4780 | { | |
4781 | _bfd_error_handler | |
4782 | /* xgettext:c-format */ | |
4783 | (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64), | |
4784 | input_bfd, input_section, (uint64_t) offset); | |
4785 | return FALSE; | |
4786 | } | |
4787 | ||
3376eaf5 KK |
4788 | /* Size of IE instructions is 10 or 12. */ |
4789 | offset -= 10; | |
4790 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4791 | if ((insn & 0xf0ff) == 0x0012) | |
4792 | { | |
4793 | BFD_ASSERT (offset >= 2); | |
4794 | offset -= 2; | |
4795 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4796 | } | |
4797 | ||
a05b9f5e NC |
4798 | if ((insn & 0xff00) != 0xd000) |
4799 | _bfd_error_handler | |
4800 | /* xgettext:c-format */ | |
4801 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"), | |
4802 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4803 | ||
91d6fa6a | 4804 | target = insn & 0x00ff; |
a05b9f5e | 4805 | |
3376eaf5 | 4806 | insn = bfd_get_16 (input_bfd, contents + offset + 2); |
a05b9f5e NC |
4807 | if ((insn & 0xf0ff) != 0x0012) |
4808 | _bfd_error_handler | |
4809 | /* xgettext:c-format */ | |
4810 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"), | |
4811 | input_bfd, input_section, (uint64_t) (offset + 2), (int) insn); | |
4812 | ||
3376eaf5 | 4813 | insn = bfd_get_16 (input_bfd, contents + offset + 4); |
a05b9f5e NC |
4814 | if ((insn & 0xf0ff) != 0x00ce) |
4815 | _bfd_error_handler | |
4816 | /* xgettext:c-format */ | |
4817 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"), | |
4818 | input_bfd, input_section, (uint64_t) (offset + 4), (int) insn); | |
4819 | ||
91d6fa6a | 4820 | insn = 0xd000 | (insn & 0x0f00) | target; |
3376eaf5 KK |
4821 | bfd_put_16 (output_bfd, insn, contents + offset + 0); |
4822 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
4823 | } | |
4824 | ||
267fb3c1 KK |
4825 | bfd_put_32 (output_bfd, tpoff (info, relocation), |
4826 | contents + rel->r_offset); | |
3376eaf5 KK |
4827 | continue; |
4828 | } | |
4829 | ||
8e45593f | 4830 | if (sgot == NULL || sgotplt == NULL) |
3376eaf5 KK |
4831 | abort (); |
4832 | ||
4833 | if (h != NULL) | |
4834 | off = h->got.offset; | |
4835 | else | |
4836 | { | |
4837 | if (local_got_offsets == NULL) | |
4838 | abort (); | |
4839 | ||
4840 | off = local_got_offsets[r_symndx]; | |
4841 | } | |
4842 | ||
267fb3c1 KK |
4843 | /* Relocate R_SH_TLS_IE_32 directly when statically linking. */ |
4844 | if (r_type == R_SH_TLS_IE_32 | |
4845 | && ! htab->root.dynamic_sections_created) | |
4846 | { | |
4847 | off &= ~1; | |
4848 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
4849 | sgot->contents + off); | |
8e45593f | 4850 | bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off, |
267fb3c1 KK |
4851 | contents + rel->r_offset); |
4852 | continue; | |
4853 | } | |
4854 | ||
3376eaf5 KK |
4855 | if ((off & 1) != 0) |
4856 | off &= ~1; | |
26e41594 | 4857 | else |
3376eaf5 KK |
4858 | { |
4859 | Elf_Internal_Rela outrel; | |
947216bf | 4860 | bfd_byte *loc; |
3376eaf5 KK |
4861 | int dr_type, indx; |
4862 | ||
3376eaf5 KK |
4863 | outrel.r_offset = (sgot->output_section->vma |
4864 | + sgot->output_offset + off); | |
4865 | ||
267fb3c1 | 4866 | if (h == NULL || h->dynindx == -1) |
c95b8a7a KK |
4867 | indx = 0; |
4868 | else | |
4869 | indx = h->dynindx; | |
267fb3c1 | 4870 | |
3376eaf5 KK |
4871 | dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 : |
4872 | R_SH_TLS_TPOFF32); | |
4873 | if (dr_type == R_SH_TLS_TPOFF32 && indx == 0) | |
4874 | outrel.r_addend = relocation - dtpoff_base (info); | |
4875 | else | |
4876 | outrel.r_addend = 0; | |
4877 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
947216bf AM |
4878 | loc = srelgot->contents; |
4879 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
4880 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
4881 | ||
4882 | if (r_type == R_SH_TLS_GD_32) | |
4883 | { | |
4884 | if (indx == 0) | |
4885 | { | |
4886 | bfd_put_32 (output_bfd, | |
4887 | relocation - dtpoff_base (info), | |
4888 | sgot->contents + off + 4); | |
4889 | } | |
4890 | else | |
4891 | { | |
4892 | outrel.r_info = ELF32_R_INFO (indx, | |
4893 | R_SH_TLS_DTPOFF32); | |
4894 | outrel.r_offset += 4; | |
4895 | outrel.r_addend = 0; | |
4896 | srelgot->reloc_count++; | |
947216bf AM |
4897 | loc += sizeof (Elf32_External_Rela); |
4898 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
4899 | } |
4900 | } | |
4901 | ||
4902 | if (h != NULL) | |
4903 | h->got.offset |= 1; | |
4904 | else | |
4905 | local_got_offsets[r_symndx] |= 1; | |
4906 | } | |
4907 | ||
4908 | if (off >= (bfd_vma) -2) | |
4909 | abort (); | |
4910 | ||
4911 | if (r_type == (int) ELF32_R_TYPE (rel->r_info)) | |
8e45593f | 4912 | relocation = sh_elf_got_offset (htab) + off; |
3376eaf5 KK |
4913 | else |
4914 | { | |
4915 | bfd_vma offset; | |
4916 | unsigned short insn; | |
4917 | ||
4918 | /* GD->IE transition: | |
4919 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
4920 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
4921 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: | |
4922 | We change it into: | |
4923 | mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0; | |
4924 | nop; nop; bra 3f; nop; .align 2; | |
4925 | 1: .long x@TPOFF; 2:...; 3:. */ | |
4926 | ||
4927 | offset = rel->r_offset; | |
a05b9f5e NC |
4928 | if (offset < 16) |
4929 | { | |
4930 | _bfd_error_handler | |
4931 | /* xgettext:c-format */ | |
4932 | (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64), | |
4933 | input_bfd, input_section, (uint64_t) offset); | |
4934 | return FALSE; | |
4935 | } | |
4936 | ||
3376eaf5 KK |
4937 | /* Size of GD instructions is 16 or 18. */ |
4938 | offset -= 16; | |
4939 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4940 | if ((insn & 0xff00) == 0xc700) | |
4941 | { | |
4942 | BFD_ASSERT (offset >= 2); | |
4943 | offset -= 2; | |
4944 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4945 | } | |
4946 | ||
4947 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
4948 | ||
4949 | /* Replace mov.l 1f,R4 with mov.l 1f,r0. */ | |
4950 | bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset); | |
4951 | ||
4952 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4953 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
4954 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4955 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
4956 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
4957 | BFD_ASSERT (insn == 0x310c); | |
4958 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
4959 | BFD_ASSERT (insn == 0x410b); | |
4960 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
4961 | BFD_ASSERT (insn == 0x34cc); | |
4962 | ||
4963 | bfd_put_16 (output_bfd, 0x0412, contents + offset + 2); | |
4964 | bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4); | |
4965 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 6); | |
4966 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4967 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4968 | ||
8e45593f | 4969 | bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off, |
3376eaf5 KK |
4970 | contents + rel->r_offset); |
4971 | ||
4972 | continue; | |
4973 | } | |
4974 | ||
4975 | addend = rel->r_addend; | |
4976 | ||
4977 | goto final_link_relocate; | |
4978 | ||
4979 | case R_SH_TLS_LD_32: | |
e0af1f53 | 4980 | BFD_ASSERT (htab); |
8e45593f | 4981 | check_segment[0] = check_segment[1] = -1; |
0e1862bb | 4982 | if (! bfd_link_pic (info)) |
3376eaf5 KK |
4983 | { |
4984 | bfd_vma offset; | |
4985 | unsigned short insn; | |
4986 | ||
4987 | /* LD->LE transition: | |
4988 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
4989 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
4990 | 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3: | |
4991 | We change it into: | |
4992 | stc gbr,r0; nop; nop; nop; | |
4993 | nop; nop; bra 3f; ...; 3:. */ | |
4994 | ||
4995 | offset = rel->r_offset; | |
a05b9f5e NC |
4996 | if (offset < 16) |
4997 | { | |
4998 | _bfd_error_handler | |
4999 | /* xgettext:c-format */ | |
5000 | (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64), | |
5001 | input_bfd, input_section, (uint64_t) offset); | |
5002 | return FALSE; | |
5003 | } | |
5004 | ||
3376eaf5 KK |
5005 | /* Size of LD instructions is 16 or 18. */ |
5006 | offset -= 16; | |
5007 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
5008 | if ((insn & 0xff00) == 0xc700) | |
5009 | { | |
5010 | BFD_ASSERT (offset >= 2); | |
5011 | offset -= 2; | |
5012 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
5013 | } | |
5014 | ||
5015 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
5016 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
5017 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
5018 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
5019 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
5020 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
5021 | BFD_ASSERT (insn == 0x310c); | |
5022 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
5023 | BFD_ASSERT (insn == 0x410b); | |
5024 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
5025 | BFD_ASSERT (insn == 0x34cc); | |
5026 | ||
5027 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 0); | |
5028 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 2); | |
5029 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
5030 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
5031 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
5032 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
5033 | ||
5034 | continue; | |
5035 | } | |
5036 | ||
8e45593f | 5037 | if (sgot == NULL || sgotplt == NULL) |
3376eaf5 KK |
5038 | abort (); |
5039 | ||
5040 | off = htab->tls_ldm_got.offset; | |
5041 | if (off & 1) | |
5042 | off &= ~1; | |
5043 | else | |
5044 | { | |
5045 | Elf_Internal_Rela outrel; | |
947216bf | 5046 | bfd_byte *loc; |
3376eaf5 | 5047 | |
3376eaf5 KK |
5048 | outrel.r_offset = (sgot->output_section->vma |
5049 | + sgot->output_offset + off); | |
5050 | outrel.r_addend = 0; | |
5051 | outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32); | |
947216bf AM |
5052 | loc = srelgot->contents; |
5053 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
5054 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
5055 | htab->tls_ldm_got.offset |= 1; | |
5056 | } | |
5057 | ||
8e45593f | 5058 | relocation = sh_elf_got_offset (htab) + off; |
3376eaf5 KK |
5059 | addend = rel->r_addend; |
5060 | ||
5061 | goto final_link_relocate; | |
5062 | ||
5063 | case R_SH_TLS_LDO_32: | |
8e45593f | 5064 | check_segment[0] = check_segment[1] = -1; |
0e1862bb | 5065 | if (! bfd_link_pic (info)) |
267fb3c1 | 5066 | relocation = tpoff (info, relocation); |
3376eaf5 KK |
5067 | else |
5068 | relocation -= dtpoff_base (info); | |
5069 | ||
5070 | addend = rel->r_addend; | |
5071 | goto final_link_relocate; | |
5072 | ||
5073 | case R_SH_TLS_LE_32: | |
5074 | { | |
5075 | int indx; | |
5076 | Elf_Internal_Rela outrel; | |
947216bf | 5077 | bfd_byte *loc; |
3376eaf5 | 5078 | |
8e45593f NC |
5079 | check_segment[0] = check_segment[1] = -1; |
5080 | ||
3cbc1e5e | 5081 | if (!bfd_link_dll (info)) |
267fb3c1 KK |
5082 | { |
5083 | relocation = tpoff (info, relocation); | |
5084 | addend = rel->r_addend; | |
5085 | goto final_link_relocate; | |
5086 | } | |
5087 | ||
3376eaf5 KK |
5088 | if (sreloc == NULL) |
5089 | { | |
83bac4b0 NC |
5090 | sreloc = _bfd_elf_get_dynamic_reloc_section |
5091 | (input_bfd, input_section, /*rela?*/ TRUE); | |
5092 | if (sreloc == NULL) | |
b34976b6 | 5093 | return FALSE; |
3376eaf5 KK |
5094 | } |
5095 | ||
267fb3c1 KK |
5096 | if (h == NULL || h->dynindx == -1) |
5097 | indx = 0; | |
5098 | else | |
5099 | indx = h->dynindx; | |
5100 | ||
3376eaf5 KK |
5101 | outrel.r_offset = (input_section->output_section->vma |
5102 | + input_section->output_offset | |
5103 | + rel->r_offset); | |
5104 | outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32); | |
5105 | if (indx == 0) | |
5106 | outrel.r_addend = relocation - dtpoff_base (info); | |
5107 | else | |
5108 | outrel.r_addend = 0; | |
3376eaf5 | 5109 | |
947216bf AM |
5110 | loc = sreloc->contents; |
5111 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
5112 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
5113 | continue; |
5114 | } | |
37c644f2 AO |
5115 | } |
5116 | ||
146be91a | 5117 | relocation_done: |
e0af1f53 | 5118 | if (fdpic_p && check_segment[0] != (unsigned) -1 |
8e45593f NC |
5119 | && check_segment[0] != check_segment[1]) |
5120 | { | |
5121 | /* We don't want duplicate errors for undefined symbols. */ | |
5122 | if (!h || h->root.type != bfd_link_hash_undefined) | |
5123 | { | |
0e1862bb | 5124 | if (bfd_link_pic (info)) |
8e45593f NC |
5125 | { |
5126 | info->callbacks->einfo | |
695344c0 | 5127 | /* xgettext:c-format */ |
8e45593f NC |
5128 | (_("%X%C: relocation to \"%s\" references a different segment\n"), |
5129 | input_bfd, input_section, rel->r_offset, symname); | |
5130 | return FALSE; | |
5131 | } | |
5132 | else | |
5133 | info->callbacks->einfo | |
695344c0 | 5134 | /* xgettext:c-format */ |
8e45593f NC |
5135 | (_("%C: warning: relocation to \"%s\" references a different segment\n"), |
5136 | input_bfd, input_section, rel->r_offset, symname); | |
5137 | } | |
5138 | ||
fbedb42d | 5139 | elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC; |
8e45593f NC |
5140 | } |
5141 | ||
37c644f2 AO |
5142 | if (r != bfd_reloc_ok) |
5143 | { | |
5144 | switch (r) | |
5145 | { | |
5146 | default: | |
5147 | case bfd_reloc_outofrange: | |
5148 | abort (); | |
5149 | case bfd_reloc_overflow: | |
5150 | { | |
5151 | const char *name; | |
5152 | ||
5153 | if (h != NULL) | |
dfeffb9f | 5154 | name = NULL; |
37c644f2 AO |
5155 | else |
5156 | { | |
252b5132 RH |
5157 | name = (bfd_elf_string_from_elf_section |
5158 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
5159 | if (name == NULL) | |
b34976b6 | 5160 | return FALSE; |
252b5132 | 5161 | if (*name == '\0') |
fd361982 | 5162 | name = bfd_section_name (sec); |
252b5132 | 5163 | } |
1a72702b AM |
5164 | (*info->callbacks->reloc_overflow) |
5165 | (info, (h ? &h->root : NULL), name, howto->name, | |
5166 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
252b5132 RH |
5167 | } |
5168 | break; | |
5169 | } | |
5170 | } | |
5171 | } | |
5172 | ||
b34976b6 | 5173 | return TRUE; |
252b5132 RH |
5174 | } |
5175 | ||
5176 | /* This is a version of bfd_generic_get_relocated_section_contents | |
5177 | which uses sh_elf_relocate_section. */ | |
5178 | ||
5179 | static bfd_byte * | |
09fd220b KK |
5180 | sh_elf_get_relocated_section_contents (bfd *output_bfd, |
5181 | struct bfd_link_info *link_info, | |
5182 | struct bfd_link_order *link_order, | |
5183 | bfd_byte *data, | |
5184 | bfd_boolean relocatable, | |
5185 | asymbol **symbols) | |
252b5132 RH |
5186 | { |
5187 | Elf_Internal_Shdr *symtab_hdr; | |
5188 | asection *input_section = link_order->u.indirect.section; | |
5189 | bfd *input_bfd = input_section->owner; | |
5190 | asection **sections = NULL; | |
5191 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 5192 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 RH |
5193 | |
5194 | /* We only need to handle the case of relaxing, or of having a | |
5195 | particular set of section contents, specially. */ | |
1049f94e | 5196 | if (relocatable |
252b5132 RH |
5197 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
5198 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
5199 | link_order, data, | |
1049f94e | 5200 | relocatable, |
252b5132 RH |
5201 | symbols); |
5202 | ||
0ffa91dd | 5203 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
252b5132 RH |
5204 | |
5205 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 5206 | (size_t) input_section->size); |
252b5132 RH |
5207 | |
5208 | if ((input_section->flags & SEC_RELOC) != 0 | |
5209 | && input_section->reloc_count > 0) | |
5210 | { | |
252b5132 | 5211 | asection **secpp; |
6cdc0ccc | 5212 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 5213 | bfd_size_type amt; |
252b5132 | 5214 | |
45d6a902 | 5215 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 5216 | (input_bfd, input_section, NULL, |
b34976b6 | 5217 | (Elf_Internal_Rela *) NULL, FALSE)); |
252b5132 RH |
5218 | if (internal_relocs == NULL) |
5219 | goto error_return; | |
5220 | ||
6cdc0ccc AM |
5221 | if (symtab_hdr->sh_info != 0) |
5222 | { | |
5223 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5224 | if (isymbuf == NULL) | |
5225 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
5226 | symtab_hdr->sh_info, 0, | |
5227 | NULL, NULL, NULL); | |
5228 | if (isymbuf == NULL) | |
5229 | goto error_return; | |
5230 | } | |
252b5132 | 5231 | |
9ad5cbcf AM |
5232 | amt = symtab_hdr->sh_info; |
5233 | amt *= sizeof (asection *); | |
5234 | sections = (asection **) bfd_malloc (amt); | |
5235 | if (sections == NULL && amt != 0) | |
252b5132 RH |
5236 | goto error_return; |
5237 | ||
6cdc0ccc AM |
5238 | isymend = isymbuf + symtab_hdr->sh_info; |
5239 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
252b5132 RH |
5240 | { |
5241 | asection *isec; | |
5242 | ||
6cdc0ccc | 5243 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 5244 | isec = bfd_und_section_ptr; |
6cdc0ccc | 5245 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 5246 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 5247 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
5248 | isec = bfd_com_section_ptr; |
5249 | else | |
6cdc0ccc | 5250 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
252b5132 RH |
5251 | |
5252 | *secpp = isec; | |
5253 | } | |
5254 | ||
5255 | if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd, | |
5256 | input_section, data, internal_relocs, | |
6cdc0ccc | 5257 | isymbuf, sections)) |
252b5132 RH |
5258 | goto error_return; |
5259 | ||
5260 | if (sections != NULL) | |
5261 | free (sections); | |
6cdc0ccc AM |
5262 | if (isymbuf != NULL |
5263 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5264 | free (isymbuf); | |
5265 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
252b5132 | 5266 | free (internal_relocs); |
252b5132 RH |
5267 | } |
5268 | ||
5269 | return data; | |
5270 | ||
5271 | error_return: | |
252b5132 RH |
5272 | if (sections != NULL) |
5273 | free (sections); | |
6cdc0ccc AM |
5274 | if (isymbuf != NULL |
5275 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5276 | free (isymbuf); | |
5277 | if (internal_relocs != NULL | |
5278 | && elf_section_data (input_section)->relocs != internal_relocs) | |
5279 | free (internal_relocs); | |
252b5132 RH |
5280 | return NULL; |
5281 | } | |
917583ad | 5282 | |
3376eaf5 KK |
5283 | /* Return the base VMA address which should be subtracted from real addresses |
5284 | when resolving @dtpoff relocation. | |
5285 | This is PT_TLS segment p_vaddr. */ | |
5286 | ||
5287 | static bfd_vma | |
09fd220b | 5288 | dtpoff_base (struct bfd_link_info *info) |
3376eaf5 | 5289 | { |
e1918d23 AM |
5290 | /* If tls_sec is NULL, we should have signalled an error already. */ |
5291 | if (elf_hash_table (info)->tls_sec == NULL) | |
267fb3c1 | 5292 | return 0; |
e1918d23 | 5293 | return elf_hash_table (info)->tls_sec->vma; |
3376eaf5 KK |
5294 | } |
5295 | ||
267fb3c1 KK |
5296 | /* Return the relocation value for R_SH_TLS_TPOFF32.. */ |
5297 | ||
5298 | static bfd_vma | |
09fd220b | 5299 | tpoff (struct bfd_link_info *info, bfd_vma address) |
267fb3c1 | 5300 | { |
e1918d23 AM |
5301 | /* If tls_sec is NULL, we should have signalled an error already. */ |
5302 | if (elf_hash_table (info)->tls_sec == NULL) | |
267fb3c1 KK |
5303 | return 0; |
5304 | /* SH TLS ABI is variant I and static TLS block start just after tcbhead | |
5305 | structure which has 2 pointer fields. */ | |
044ad7e3 KK |
5306 | return (address - elf_hash_table (info)->tls_sec->vma |
5307 | + align_power ((bfd_vma) 8, | |
5308 | elf_hash_table (info)->tls_sec->alignment_power)); | |
267fb3c1 KK |
5309 | } |
5310 | ||
252b5132 | 5311 | static asection * |
09fd220b | 5312 | sh_elf_gc_mark_hook (asection *sec, |
07adf181 AM |
5313 | struct bfd_link_info *info, |
5314 | Elf_Internal_Rela *rel, | |
5315 | struct elf_link_hash_entry *h, | |
09fd220b | 5316 | Elf_Internal_Sym *sym) |
252b5132 RH |
5317 | { |
5318 | if (h != NULL) | |
07adf181 AM |
5319 | switch (ELF32_R_TYPE (rel->r_info)) |
5320 | { | |
5321 | case R_SH_GNU_VTINHERIT: | |
5322 | case R_SH_GNU_VTENTRY: | |
5323 | return NULL; | |
5324 | } | |
9ad5cbcf | 5325 | |
07adf181 | 5326 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 RH |
5327 | } |
5328 | ||
067653c5 AM |
5329 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
5330 | ||
5331 | static void | |
fcfa13d2 | 5332 | sh_elf_copy_indirect_symbol (struct bfd_link_info *info, |
09fd220b KK |
5333 | struct elf_link_hash_entry *dir, |
5334 | struct elf_link_hash_entry *ind) | |
067653c5 AM |
5335 | { |
5336 | struct elf_sh_link_hash_entry *edir, *eind; | |
5337 | ||
5338 | edir = (struct elf_sh_link_hash_entry *) dir; | |
5339 | eind = (struct elf_sh_link_hash_entry *) ind; | |
5340 | ||
5341 | if (eind->dyn_relocs != NULL) | |
5342 | { | |
5343 | if (edir->dyn_relocs != NULL) | |
5344 | { | |
3bf083ed AM |
5345 | struct elf_dyn_relocs **pp; |
5346 | struct elf_dyn_relocs *p; | |
067653c5 | 5347 | |
fcfa13d2 | 5348 | /* Add reloc counts against the indirect sym to the direct sym |
067653c5 AM |
5349 | list. Merge any entries against the same section. */ |
5350 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
5351 | { | |
3bf083ed | 5352 | struct elf_dyn_relocs *q; |
067653c5 AM |
5353 | |
5354 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
5355 | if (q->sec == p->sec) | |
5356 | { | |
5357 | q->pc_count += p->pc_count; | |
5358 | q->count += p->count; | |
5359 | *pp = p->next; | |
5360 | break; | |
5361 | } | |
5362 | if (q == NULL) | |
5363 | pp = &p->next; | |
5364 | } | |
5365 | *pp = edir->dyn_relocs; | |
5366 | } | |
5367 | ||
5368 | edir->dyn_relocs = eind->dyn_relocs; | |
5369 | eind->dyn_relocs = NULL; | |
5370 | } | |
4989d792 SC |
5371 | edir->gotplt_refcount = eind->gotplt_refcount; |
5372 | eind->gotplt_refcount = 0; | |
8e45593f | 5373 | edir->funcdesc.refcount += eind->funcdesc.refcount; |
68ffbac6 | 5374 | eind->funcdesc.refcount = 0; |
8e45593f | 5375 | edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount; |
68ffbac6 | 5376 | eind->abs_funcdesc_refcount = 0; |
067653c5 | 5377 | |
3376eaf5 KK |
5378 | if (ind->root.type == bfd_link_hash_indirect |
5379 | && dir->got.refcount <= 0) | |
5380 | { | |
8e45593f NC |
5381 | edir->got_type = eind->got_type; |
5382 | eind->got_type = GOT_UNKNOWN; | |
3376eaf5 KK |
5383 | } |
5384 | ||
04e534c3 | 5385 | if (ind->root.type != bfd_link_hash_indirect |
f5385ebf AM |
5386 | && dir->dynamic_adjusted) |
5387 | { | |
5388 | /* If called to transfer flags for a weakdef during processing | |
5389 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
5390 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
e81830c5 AM |
5391 | if (dir->versioned != versioned_hidden) |
5392 | dir->ref_dynamic |= ind->ref_dynamic; | |
f5385ebf AM |
5393 | dir->ref_regular |= ind->ref_regular; |
5394 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
5395 | dir->needs_plt |= ind->needs_plt; | |
5396 | } | |
04e534c3 | 5397 | else |
fcfa13d2 | 5398 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
067653c5 AM |
5399 | } |
5400 | ||
3376eaf5 | 5401 | static int |
09fd220b KK |
5402 | sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type, |
5403 | int is_local) | |
3376eaf5 | 5404 | { |
0e1862bb | 5405 | if (bfd_link_pic (info)) |
3376eaf5 KK |
5406 | return r_type; |
5407 | ||
5408 | switch (r_type) | |
5409 | { | |
5410 | case R_SH_TLS_GD_32: | |
5411 | case R_SH_TLS_IE_32: | |
5412 | if (is_local) | |
5413 | return R_SH_TLS_LE_32; | |
5414 | return R_SH_TLS_IE_32; | |
5415 | case R_SH_TLS_LD_32: | |
5416 | return R_SH_TLS_LE_32; | |
5417 | } | |
5418 | ||
5419 | return r_type; | |
5420 | } | |
5421 | ||
252b5132 RH |
5422 | /* Look through the relocs for a section during the first phase. |
5423 | Since we don't do .gots or .plts, we just need to consider the | |
5424 | virtual table relocs for gc. */ | |
435b1e90 | 5425 | |
b34976b6 | 5426 | static bfd_boolean |
09fd220b KK |
5427 | sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, |
5428 | const Elf_Internal_Rela *relocs) | |
252b5132 RH |
5429 | { |
5430 | Elf_Internal_Shdr *symtab_hdr; | |
5582a088 | 5431 | struct elf_link_hash_entry **sym_hashes; |
067653c5 | 5432 | struct elf_sh_link_hash_table *htab; |
252b5132 RH |
5433 | const Elf_Internal_Rela *rel; |
5434 | const Elf_Internal_Rela *rel_end; | |
37c644f2 | 5435 | asection *sreloc; |
3376eaf5 | 5436 | unsigned int r_type; |
85e02784 | 5437 | enum got_type got_type, old_got_type; |
435b1e90 | 5438 | |
37c644f2 AO |
5439 | sreloc = NULL; |
5440 | ||
0e1862bb | 5441 | if (bfd_link_relocatable (info)) |
b34976b6 | 5442 | return TRUE; |
435b1e90 | 5443 | |
65281396 AM |
5444 | /* Don't do anything special with non-loaded, non-alloced sections. |
5445 | In particular, any relocs in such sections should not affect GOT | |
5446 | and PLT reference counting (ie. we don't allow them to create GOT | |
5447 | or PLT entries), there's no possibility or desire to optimize TLS | |
5448 | relocs, and there's not much point in propagating relocs to shared | |
5449 | libs that the dynamic linker won't relocate. */ | |
5450 | if ((sec->flags & SEC_ALLOC) == 0) | |
5451 | return TRUE; | |
5452 | ||
0ffa91dd NC |
5453 | BFD_ASSERT (is_sh_elf (abfd)); |
5454 | ||
5455 | symtab_hdr = &elf_symtab_hdr (abfd); | |
252b5132 | 5456 | sym_hashes = elf_sym_hashes (abfd); |
435b1e90 | 5457 | |
067653c5 | 5458 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
5459 | if (htab == NULL) |
5460 | return FALSE; | |
5461 | ||
252b5132 RH |
5462 | rel_end = relocs + sec->reloc_count; |
5463 | for (rel = relocs; rel < rel_end; rel++) | |
5464 | { | |
5465 | struct elf_link_hash_entry *h; | |
5466 | unsigned long r_symndx; | |
435b1e90 | 5467 | |
252b5132 | 5468 | r_symndx = ELF32_R_SYM (rel->r_info); |
3376eaf5 KK |
5469 | r_type = ELF32_R_TYPE (rel->r_info); |
5470 | ||
252b5132 | 5471 | if (r_symndx < symtab_hdr->sh_info) |
435b1e90 | 5472 | h = NULL; |
252b5132 | 5473 | else |
396a6083 SC |
5474 | { |
5475 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
396a6083 SC |
5476 | while (h->root.type == bfd_link_hash_indirect |
5477 | || h->root.type == bfd_link_hash_warning) | |
211dc24b | 5478 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
396a6083 | 5479 | } |
435b1e90 | 5480 | |
3376eaf5 | 5481 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); |
0e1862bb | 5482 | if (! bfd_link_pic (info) |
3376eaf5 KK |
5483 | && r_type == R_SH_TLS_IE_32 |
5484 | && h != NULL | |
5485 | && h->root.type != bfd_link_hash_undefined | |
5486 | && h->root.type != bfd_link_hash_undefweak | |
5487 | && (h->dynindx == -1 | |
f5385ebf | 5488 | || h->def_regular)) |
3376eaf5 KK |
5489 | r_type = R_SH_TLS_LE_32; |
5490 | ||
8e45593f NC |
5491 | if (htab->fdpic_p) |
5492 | switch (r_type) | |
5493 | { | |
5494 | case R_SH_GOTOFFFUNCDESC: | |
5495 | case R_SH_GOTOFFFUNCDESC20: | |
5496 | case R_SH_FUNCDESC: | |
5497 | case R_SH_GOTFUNCDESC: | |
5498 | case R_SH_GOTFUNCDESC20: | |
5499 | if (h != NULL) | |
5500 | { | |
5501 | if (h->dynindx == -1) | |
5502 | switch (ELF_ST_VISIBILITY (h->other)) | |
5503 | { | |
5504 | case STV_INTERNAL: | |
5505 | case STV_HIDDEN: | |
5506 | break; | |
5507 | default: | |
5508 | bfd_elf_link_record_dynamic_symbol (info, h); | |
5509 | break; | |
5510 | } | |
5511 | } | |
5512 | break; | |
5513 | } | |
5514 | ||
37c644f2 | 5515 | /* Some relocs require a global offset table. */ |
ce558b89 | 5516 | if (htab->root.sgot == NULL) |
37c644f2 | 5517 | { |
3376eaf5 | 5518 | switch (r_type) |
37c644f2 | 5519 | { |
8e45593f NC |
5520 | case R_SH_DIR32: |
5521 | /* This may require an rofixup. */ | |
5522 | if (!htab->fdpic_p) | |
5523 | break; | |
1a0670f3 | 5524 | /* Fall through. */ |
fbca6ad9 | 5525 | case R_SH_GOTPLT32: |
37c644f2 | 5526 | case R_SH_GOT32: |
8e45593f | 5527 | case R_SH_GOT20: |
37c644f2 | 5528 | case R_SH_GOTOFF: |
8e45593f NC |
5529 | case R_SH_GOTOFF20: |
5530 | case R_SH_FUNCDESC: | |
5531 | case R_SH_GOTFUNCDESC: | |
5532 | case R_SH_GOTFUNCDESC20: | |
5533 | case R_SH_GOTOFFFUNCDESC: | |
5534 | case R_SH_GOTOFFFUNCDESC20: | |
37c644f2 | 5535 | case R_SH_GOTPC: |
3376eaf5 KK |
5536 | case R_SH_TLS_GD_32: |
5537 | case R_SH_TLS_LD_32: | |
5538 | case R_SH_TLS_IE_32: | |
8e45593f NC |
5539 | if (htab->root.dynobj == NULL) |
5540 | htab->root.dynobj = abfd; | |
5541 | if (!create_got_section (htab->root.dynobj, info)) | |
5542 | return FALSE; | |
37c644f2 AO |
5543 | break; |
5544 | ||
5545 | default: | |
5546 | break; | |
5547 | } | |
5548 | } | |
5549 | ||
3376eaf5 | 5550 | switch (r_type) |
067653c5 AM |
5551 | { |
5552 | /* This relocation describes the C++ object vtable hierarchy. | |
5553 | Reconstruct it for later use during GC. */ | |
435b1e90 | 5554 | case R_SH_GNU_VTINHERIT: |
c152c796 | 5555 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 5556 | return FALSE; |
435b1e90 KH |
5557 | break; |
5558 | ||
067653c5 AM |
5559 | /* This relocation describes which C++ vtable entries are actually |
5560 | used. Record for later use during GC. */ | |
435b1e90 | 5561 | case R_SH_GNU_VTENTRY: |
a0ea3a14 | 5562 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 5563 | return FALSE; |
435b1e90 | 5564 | break; |
37c644f2 | 5565 | |
3376eaf5 | 5566 | case R_SH_TLS_IE_32: |
0e1862bb | 5567 | if (bfd_link_pic (info)) |
3376eaf5 KK |
5568 | info->flags |= DF_STATIC_TLS; |
5569 | ||
5570 | /* FALLTHROUGH */ | |
267fb3c1 | 5571 | force_got: |
3376eaf5 | 5572 | case R_SH_TLS_GD_32: |
37c644f2 | 5573 | case R_SH_GOT32: |
8e45593f | 5574 | case R_SH_GOT20: |
8e45593f NC |
5575 | case R_SH_GOTFUNCDESC: |
5576 | case R_SH_GOTFUNCDESC20: | |
3376eaf5 KK |
5577 | switch (r_type) |
5578 | { | |
5579 | default: | |
8e45593f | 5580 | got_type = GOT_NORMAL; |
3376eaf5 KK |
5581 | break; |
5582 | case R_SH_TLS_GD_32: | |
8e45593f | 5583 | got_type = GOT_TLS_GD; |
3376eaf5 KK |
5584 | break; |
5585 | case R_SH_TLS_IE_32: | |
8e45593f NC |
5586 | got_type = GOT_TLS_IE; |
5587 | break; | |
5588 | case R_SH_GOTFUNCDESC: | |
5589 | case R_SH_GOTFUNCDESC20: | |
5590 | got_type = GOT_FUNCDESC; | |
3376eaf5 KK |
5591 | break; |
5592 | } | |
5593 | ||
37c644f2 | 5594 | if (h != NULL) |
3376eaf5 | 5595 | { |
211dc24b | 5596 | h->got.refcount += 1; |
8e45593f | 5597 | old_got_type = sh_elf_hash_entry (h)->got_type; |
3376eaf5 | 5598 | } |
37c644f2 AO |
5599 | else |
5600 | { | |
067653c5 AM |
5601 | bfd_signed_vma *local_got_refcounts; |
5602 | ||
435b1e90 | 5603 | /* This is a global offset table entry for a local |
067653c5 AM |
5604 | symbol. */ |
5605 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
5606 | if (local_got_refcounts == NULL) | |
37c644f2 | 5607 | { |
dc810e39 | 5608 | bfd_size_type size; |
37c644f2 | 5609 | |
dc810e39 | 5610 | size = symtab_hdr->sh_info; |
067653c5 | 5611 | size *= sizeof (bfd_signed_vma); |
3376eaf5 | 5612 | size += symtab_hdr->sh_info; |
067653c5 AM |
5613 | local_got_refcounts = ((bfd_signed_vma *) |
5614 | bfd_zalloc (abfd, size)); | |
5615 | if (local_got_refcounts == NULL) | |
b34976b6 | 5616 | return FALSE; |
067653c5 | 5617 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
8e45593f | 5618 | sh_elf_local_got_type (abfd) |
3376eaf5 | 5619 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); |
37c644f2 | 5620 | } |
211dc24b | 5621 | local_got_refcounts[r_symndx] += 1; |
8e45593f | 5622 | old_got_type = sh_elf_local_got_type (abfd) [r_symndx]; |
3376eaf5 KK |
5623 | } |
5624 | ||
5625 | /* If a TLS symbol is accessed using IE at least once, | |
5626 | there is no point to use dynamic model for it. */ | |
8e45593f NC |
5627 | if (old_got_type != got_type && old_got_type != GOT_UNKNOWN |
5628 | && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE)) | |
3376eaf5 | 5629 | { |
8e45593f NC |
5630 | if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD) |
5631 | got_type = GOT_TLS_IE; | |
3376eaf5 KK |
5632 | else |
5633 | { | |
8e45593f NC |
5634 | if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC) |
5635 | && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL)) | |
4eca0228 | 5636 | _bfd_error_handler |
695344c0 | 5637 | /* xgettext:c-format */ |
871b3ab2 | 5638 | (_("%pB: `%s' accessed both as normal and FDPIC symbol"), |
8e45593f NC |
5639 | abfd, h->root.root.string); |
5640 | else if (old_got_type == GOT_FUNCDESC | |
5641 | || got_type == GOT_FUNCDESC) | |
4eca0228 | 5642 | _bfd_error_handler |
695344c0 | 5643 | /* xgettext:c-format */ |
871b3ab2 | 5644 | (_("%pB: `%s' accessed both as FDPIC and thread local symbol"), |
8e45593f NC |
5645 | abfd, h->root.root.string); |
5646 | else | |
4eca0228 | 5647 | _bfd_error_handler |
695344c0 | 5648 | /* xgettext:c-format */ |
871b3ab2 | 5649 | (_("%pB: `%s' accessed both as normal and thread local symbol"), |
4eca0228 | 5650 | abfd, h->root.root.string); |
b34976b6 | 5651 | return FALSE; |
3376eaf5 KK |
5652 | } |
5653 | } | |
5654 | ||
8e45593f | 5655 | if (old_got_type != got_type) |
3376eaf5 KK |
5656 | { |
5657 | if (h != NULL) | |
8e45593f | 5658 | sh_elf_hash_entry (h)->got_type = got_type; |
3376eaf5 | 5659 | else |
8e45593f | 5660 | sh_elf_local_got_type (abfd) [r_symndx] = got_type; |
37c644f2 | 5661 | } |
3376eaf5 KK |
5662 | |
5663 | break; | |
5664 | ||
5665 | case R_SH_TLS_LD_32: | |
5666 | sh_elf_hash_table(info)->tls_ldm_got.refcount += 1; | |
37c644f2 AO |
5667 | break; |
5668 | ||
8e45593f NC |
5669 | case R_SH_FUNCDESC: |
5670 | case R_SH_GOTOFFFUNCDESC: | |
5671 | case R_SH_GOTOFFFUNCDESC20: | |
5672 | if (rel->r_addend) | |
5673 | { | |
4eca0228 | 5674 | _bfd_error_handler |
871b3ab2 | 5675 | (_("%pB: Function descriptor relocation with non-zero addend"), |
8e45593f NC |
5676 | abfd); |
5677 | return FALSE; | |
5678 | } | |
5679 | ||
5680 | if (h == NULL) | |
5681 | { | |
5682 | union gotref *local_funcdesc; | |
5683 | ||
5684 | /* We need a function descriptor for a local symbol. */ | |
5685 | local_funcdesc = sh_elf_local_funcdesc (abfd); | |
5686 | if (local_funcdesc == NULL) | |
5687 | { | |
5688 | bfd_size_type size; | |
5689 | ||
5690 | size = symtab_hdr->sh_info * sizeof (union gotref); | |
8e45593f NC |
5691 | local_funcdesc = (union gotref *) bfd_zalloc (abfd, size); |
5692 | if (local_funcdesc == NULL) | |
5693 | return FALSE; | |
5694 | sh_elf_local_funcdesc (abfd) = local_funcdesc; | |
5695 | } | |
5696 | local_funcdesc[r_symndx].refcount += 1; | |
5697 | ||
5698 | if (r_type == R_SH_FUNCDESC) | |
5699 | { | |
0e1862bb | 5700 | if (!bfd_link_pic (info)) |
8e45593f NC |
5701 | htab->srofixup->size += 4; |
5702 | else | |
ce558b89 | 5703 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f NC |
5704 | } |
5705 | } | |
5706 | else | |
5707 | { | |
5708 | sh_elf_hash_entry (h)->funcdesc.refcount++; | |
5709 | if (r_type == R_SH_FUNCDESC) | |
5710 | sh_elf_hash_entry (h)->abs_funcdesc_refcount++; | |
5711 | ||
5712 | /* If there is a function descriptor reference, then | |
5713 | there should not be any non-FDPIC references. */ | |
5714 | old_got_type = sh_elf_hash_entry (h)->got_type; | |
5715 | if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN) | |
5716 | { | |
5717 | if (old_got_type == GOT_NORMAL) | |
4eca0228 | 5718 | _bfd_error_handler |
695344c0 | 5719 | /* xgettext:c-format */ |
871b3ab2 | 5720 | (_("%pB: `%s' accessed both as normal and FDPIC symbol"), |
8e45593f NC |
5721 | abfd, h->root.root.string); |
5722 | else | |
4eca0228 | 5723 | _bfd_error_handler |
695344c0 | 5724 | /* xgettext:c-format */ |
871b3ab2 | 5725 | (_("%pB: `%s' accessed both as FDPIC and thread local symbol"), |
8e45593f NC |
5726 | abfd, h->root.root.string); |
5727 | } | |
5728 | } | |
5729 | break; | |
5730 | ||
fbca6ad9 | 5731 | case R_SH_GOTPLT32: |
fbca6ad9 AO |
5732 | /* If this is a local symbol, we resolve it directly without |
5733 | creating a procedure linkage table entry. */ | |
5734 | ||
5735 | if (h == NULL | |
f5385ebf | 5736 | || h->forced_local |
0e1862bb | 5737 | || ! bfd_link_pic (info) |
fbca6ad9 | 5738 | || info->symbolic |
067653c5 | 5739 | || h->dynindx == -1) |
fbca6ad9 AO |
5740 | goto force_got; |
5741 | ||
f5385ebf | 5742 | h->needs_plt = 1; |
067653c5 | 5743 | h->plt.refcount += 1; |
4989d792 | 5744 | ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1; |
fbca6ad9 AO |
5745 | |
5746 | break; | |
5747 | ||
37c644f2 AO |
5748 | case R_SH_PLT32: |
5749 | /* This symbol requires a procedure linkage table entry. We | |
5750 | actually build the entry in adjust_dynamic_symbol, | |
5751 | because this might be a case of linking PIC code which is | |
5752 | never referenced by a dynamic object, in which case we | |
5753 | don't need to generate a procedure linkage table entry | |
5754 | after all. */ | |
5755 | ||
5756 | /* If this is a local symbol, we resolve it directly without | |
5757 | creating a procedure linkage table entry. */ | |
5758 | if (h == NULL) | |
5759 | continue; | |
5760 | ||
f5385ebf | 5761 | if (h->forced_local) |
37c644f2 AO |
5762 | break; |
5763 | ||
f5385ebf | 5764 | h->needs_plt = 1; |
067653c5 | 5765 | h->plt.refcount += 1; |
37c644f2 AO |
5766 | break; |
5767 | ||
5768 | case R_SH_DIR32: | |
5769 | case R_SH_REL32: | |
0e1862bb | 5770 | if (h != NULL && ! bfd_link_pic (info)) |
067653c5 | 5771 | { |
f5385ebf | 5772 | h->non_got_ref = 1; |
067653c5 AM |
5773 | h->plt.refcount += 1; |
5774 | } | |
37c644f2 AO |
5775 | |
5776 | /* If we are creating a shared library, and this is a reloc | |
5777 | against a global symbol, or a non PC relative reloc | |
5778 | against a local symbol, then we need to copy the reloc | |
5779 | into the shared library. However, if we are linking with | |
5780 | -Bsymbolic, we do not need to copy a reloc against a | |
5781 | global symbol which is defined in an object we are | |
5782 | including in the link (i.e., DEF_REGULAR is set). At | |
5783 | this point we have not seen all the input files, so it is | |
5784 | possible that DEF_REGULAR is not set now but will be set | |
5785 | later (it is never cleared). We account for that | |
5786 | possibility below by storing information in the | |
067653c5 AM |
5787 | dyn_relocs field of the hash table entry. A similar |
5788 | situation occurs when creating shared libraries and symbol | |
5789 | visibility changes render the symbol local. | |
5790 | ||
5791 | If on the other hand, we are creating an executable, we | |
5792 | may need to keep relocations for symbols satisfied by a | |
5793 | dynamic library if we manage to avoid copy relocs for the | |
5794 | symbol. */ | |
0e1862bb | 5795 | if ((bfd_link_pic (info) |
067653c5 | 5796 | && (sec->flags & SEC_ALLOC) != 0 |
3376eaf5 | 5797 | && (r_type != R_SH_REL32 |
067653c5 AM |
5798 | || (h != NULL |
5799 | && (! info->symbolic | |
5800 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5801 | || !h->def_regular)))) |
0e1862bb | 5802 | || (! bfd_link_pic (info) |
067653c5 AM |
5803 | && (sec->flags & SEC_ALLOC) != 0 |
5804 | && h != NULL | |
5805 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5806 | || !h->def_regular))) |
37c644f2 | 5807 | { |
3bf083ed AM |
5808 | struct elf_dyn_relocs *p; |
5809 | struct elf_dyn_relocs **head; | |
067653c5 | 5810 | |
2293c499 AM |
5811 | if (htab->root.dynobj == NULL) |
5812 | htab->root.dynobj = abfd; | |
067653c5 | 5813 | |
37c644f2 AO |
5814 | /* When creating a shared object, we must copy these |
5815 | reloc types into the output file. We create a reloc | |
5816 | section in dynobj and make room for this reloc. */ | |
5817 | if (sreloc == NULL) | |
5818 | { | |
83bac4b0 NC |
5819 | sreloc = _bfd_elf_make_dynamic_reloc_section |
5820 | (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE); | |
37c644f2 | 5821 | |
37c644f2 | 5822 | if (sreloc == NULL) |
83bac4b0 | 5823 | return FALSE; |
37c644f2 AO |
5824 | } |
5825 | ||
067653c5 AM |
5826 | /* If this is a global symbol, we count the number of |
5827 | relocations we need for this symbol. */ | |
5828 | if (h != NULL) | |
5829 | head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs; | |
5830 | else | |
37c644f2 | 5831 | { |
87d72d41 | 5832 | /* Track dynamic relocs needed for local syms too. */ |
067653c5 | 5833 | asection *s; |
6edfbbad | 5834 | void *vpp; |
87d72d41 | 5835 | Elf_Internal_Sym *isym; |
37c644f2 | 5836 | |
87d72d41 AM |
5837 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
5838 | abfd, r_symndx); | |
5839 | if (isym == NULL) | |
b34976b6 | 5840 | return FALSE; |
37c644f2 | 5841 | |
87d72d41 AM |
5842 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
5843 | if (s == NULL) | |
5844 | s = sec; | |
5845 | ||
6edfbbad | 5846 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 5847 | head = (struct elf_dyn_relocs **) vpp; |
067653c5 | 5848 | } |
37c644f2 | 5849 | |
067653c5 AM |
5850 | p = *head; |
5851 | if (p == NULL || p->sec != sec) | |
5852 | { | |
986f0783 | 5853 | size_t amt = sizeof (*p); |
2293c499 | 5854 | p = bfd_alloc (htab->root.dynobj, amt); |
37c644f2 | 5855 | if (p == NULL) |
b34976b6 | 5856 | return FALSE; |
067653c5 AM |
5857 | p->next = *head; |
5858 | *head = p; | |
5859 | p->sec = sec; | |
5860 | p->count = 0; | |
5861 | p->pc_count = 0; | |
37c644f2 | 5862 | } |
067653c5 AM |
5863 | |
5864 | p->count += 1; | |
211dc24b | 5865 | if (r_type == R_SH_REL32) |
067653c5 | 5866 | p->pc_count += 1; |
37c644f2 AO |
5867 | } |
5868 | ||
8e45593f NC |
5869 | /* Allocate the fixup regardless of whether we need a relocation. |
5870 | If we end up generating the relocation, we'll unallocate the | |
5871 | fixup. */ | |
0e1862bb | 5872 | if (htab->fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
5873 | && r_type == R_SH_DIR32 |
5874 | && (sec->flags & SEC_ALLOC) != 0) | |
5875 | htab->srofixup->size += 4; | |
37c644f2 | 5876 | break; |
3376eaf5 KK |
5877 | |
5878 | case R_SH_TLS_LE_32: | |
3cbc1e5e | 5879 | if (bfd_link_dll (info)) |
3376eaf5 | 5880 | { |
4eca0228 | 5881 | _bfd_error_handler |
871b3ab2 | 5882 | (_("%pB: TLS local exec code cannot be linked into shared objects"), |
d003868e | 5883 | abfd); |
b34976b6 | 5884 | return FALSE; |
3376eaf5 KK |
5885 | } |
5886 | ||
267fb3c1 | 5887 | break; |
3376eaf5 | 5888 | |
3376eaf5 | 5889 | case R_SH_TLS_LDO_32: |
267fb3c1 | 5890 | /* Nothing to do. */ |
3376eaf5 KK |
5891 | break; |
5892 | ||
5893 | default: | |
5894 | break; | |
435b1e90 | 5895 | } |
252b5132 | 5896 | } |
435b1e90 | 5897 | |
b34976b6 | 5898 | return TRUE; |
252b5132 RH |
5899 | } |
5900 | ||
fbca6ad9 | 5901 | #ifndef sh_elf_set_mach_from_flags |
f6f9408f JR |
5902 | static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE }; |
5903 | ||
b34976b6 | 5904 | static bfd_boolean |
09fd220b | 5905 | sh_elf_set_mach_from_flags (bfd *abfd) |
d4845d57 | 5906 | { |
f6f9408f JR |
5907 | flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK; |
5908 | ||
f461bbd8 | 5909 | if (flags >= ARRAY_SIZE (sh_ef_bfd_table)) |
f6f9408f JR |
5910 | return FALSE; |
5911 | ||
5912 | if (sh_ef_bfd_table[flags] == 0) | |
5913 | return FALSE; | |
68ffbac6 | 5914 | |
f6f9408f | 5915 | bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]); |
d4845d57 | 5916 | |
b34976b6 | 5917 | return TRUE; |
d4845d57 | 5918 | } |
f6f9408f JR |
5919 | |
5920 | ||
5921 | /* Reverse table lookup for sh_ef_bfd_table[]. | |
5922 | Given a bfd MACH value from archures.c | |
5923 | return the equivalent ELF flags from the table. | |
5924 | Return -1 if no match is found. */ | |
5925 | ||
5926 | int | |
5927 | sh_elf_get_flags_from_mach (unsigned long mach) | |
5928 | { | |
4195f552 | 5929 | int i = ARRAY_SIZE (sh_ef_bfd_table) - 1; |
68ffbac6 | 5930 | |
f6f9408f JR |
5931 | for (; i>0; i--) |
5932 | if (sh_ef_bfd_table[i] == mach) | |
5933 | return i; | |
68ffbac6 | 5934 | |
f6f9408f JR |
5935 | /* shouldn't get here */ |
5936 | BFD_FAIL(); | |
5937 | ||
5938 | return -1; | |
5939 | } | |
fbca6ad9 | 5940 | #endif /* not sh_elf_set_mach_from_flags */ |
d4845d57 | 5941 | |
fbca6ad9 | 5942 | #ifndef sh_elf_copy_private_data |
d4845d57 | 5943 | /* Copy backend specific data from one object module to another */ |
435b1e90 | 5944 | |
b34976b6 | 5945 | static bfd_boolean |
09fd220b | 5946 | sh_elf_copy_private_data (bfd * ibfd, bfd * obfd) |
d4845d57 | 5947 | { |
0ffa91dd NC |
5948 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
5949 | return TRUE; | |
5950 | ||
e2349352 L |
5951 | if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd)) |
5952 | return FALSE; | |
5953 | ||
5954 | return sh_elf_set_mach_from_flags (obfd); | |
d4845d57 | 5955 | } |
fbca6ad9 | 5956 | #endif /* not sh_elf_copy_private_data */ |
d4845d57 | 5957 | |
fbca6ad9 | 5958 | #ifndef sh_elf_merge_private_data |
d4845d57 | 5959 | |
f6f9408f JR |
5960 | /* This function returns the ELF architecture number that |
5961 | corresponds to the given arch_sh* flags. */ | |
85fbca6a | 5962 | |
f6f9408f JR |
5963 | int |
5964 | sh_find_elf_flags (unsigned int arch_set) | |
d4845d57 | 5965 | { |
85fbca6a | 5966 | extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int); |
f6f9408f | 5967 | unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set); |
d4845d57 | 5968 | |
f6f9408f JR |
5969 | return sh_elf_get_flags_from_mach (bfd_mach); |
5970 | } | |
f6f9408f | 5971 | |
1047201f AM |
5972 | /* Merge the architecture type of two BFD files, such that the |
5973 | resultant architecture supports all the features required | |
5974 | by the two input BFDs. | |
5975 | If the input BFDs are multually incompatible - i.e. one uses | |
5976 | DSP while the other uses FPU - or there is no known architecture | |
5977 | that fits the requirements then an error is emitted. */ | |
5978 | ||
5979 | static bfd_boolean | |
50e03d47 | 5980 | sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info) |
1047201f | 5981 | { |
50e03d47 | 5982 | bfd *obfd = info->output_bfd; |
1047201f AM |
5983 | unsigned int old_arch, new_arch, merged_arch; |
5984 | ||
50e03d47 | 5985 | if (! _bfd_generic_verify_endian_match (ibfd, info)) |
1047201f AM |
5986 | return FALSE; |
5987 | ||
5988 | old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd)); | |
5989 | new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd)); | |
5990 | ||
5991 | merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch); | |
5992 | ||
5993 | if (!SH_VALID_CO_ARCH_SET (merged_arch)) | |
5994 | { | |
5995 | _bfd_error_handler | |
695344c0 | 5996 | /* xgettext:c-format */ |
871b3ab2 | 5997 | (_("%pB: uses %s instructions while previous modules " |
695344c0 | 5998 | "use %s instructions"), |
1047201f AM |
5999 | ibfd, |
6000 | SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point", | |
6001 | SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp"); | |
6002 | bfd_set_error (bfd_error_bad_value); | |
6003 | return FALSE; | |
6004 | } | |
6005 | else if (!SH_VALID_ARCH_SET (merged_arch)) | |
6006 | { | |
6007 | _bfd_error_handler | |
695344c0 NC |
6008 | /* xgettext:c-format */ |
6009 | (_("internal error: merge of architecture '%s' with " | |
6010 | "architecture '%s' produced unknown architecture"), | |
1047201f AM |
6011 | bfd_printable_name (obfd), |
6012 | bfd_printable_name (ibfd)); | |
6013 | bfd_set_error (bfd_error_bad_value); | |
6014 | return FALSE; | |
6015 | } | |
6016 | ||
6017 | bfd_default_set_arch_mach (obfd, bfd_arch_sh, | |
6018 | sh_get_bfd_mach_from_arch_set (merged_arch)); | |
6019 | ||
6020 | return TRUE; | |
6021 | } | |
6022 | ||
f6f9408f JR |
6023 | /* This routine initialises the elf flags when required and |
6024 | calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */ | |
d4845d57 | 6025 | |
f6f9408f | 6026 | static bfd_boolean |
50e03d47 | 6027 | sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info) |
f6f9408f | 6028 | { |
50e03d47 | 6029 | bfd *obfd = info->output_bfd; |
85fbca6a | 6030 | |
6b728d32 AM |
6031 | /* FIXME: What should be checked when linking shared libraries? */ |
6032 | if ((ibfd->flags & DYNAMIC) != 0) | |
6033 | return TRUE; | |
6034 | ||
0ffa91dd | 6035 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
b34976b6 | 6036 | return TRUE; |
d4845d57 JR |
6037 | |
6038 | if (! elf_flags_init (obfd)) | |
6039 | { | |
a39b79b9 | 6040 | /* This happens when ld starts out with a 'blank' output file. */ |
b34976b6 | 6041 | elf_flags_init (obfd) = TRUE; |
8e45593f | 6042 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
f6f9408f | 6043 | sh_elf_set_mach_from_flags (obfd); |
8e45593f | 6044 | if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC) |
fbedb42d | 6045 | elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC; |
d4845d57 | 6046 | } |
d4845d57 | 6047 | |
50e03d47 | 6048 | if (! sh_merge_bfd_arch (ibfd, info)) |
1d70c7fb | 6049 | { |
871b3ab2 | 6050 | _bfd_error_handler (_("%pB: uses instructions which are incompatible " |
695344c0 | 6051 | "with instructions used in previous modules"), |
d003868e | 6052 | ibfd); |
1d70c7fb AO |
6053 | bfd_set_error (bfd_error_bad_value); |
6054 | return FALSE; | |
6055 | } | |
f6f9408f | 6056 | |
8e45593f NC |
6057 | elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK; |
6058 | elf_elfheader (obfd)->e_flags |= | |
f6f9408f | 6059 | sh_elf_get_flags_from_mach (bfd_get_mach (obfd)); |
8e45593f NC |
6060 | |
6061 | if (fdpic_object_p (ibfd) != fdpic_object_p (obfd)) | |
6062 | { | |
871b3ab2 | 6063 | _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"), |
8e45593f NC |
6064 | ibfd); |
6065 | bfd_set_error (bfd_error_bad_value); | |
6066 | return FALSE; | |
6067 | } | |
6068 | ||
f6f9408f | 6069 | return TRUE; |
d4845d57 | 6070 | } |
fbca6ad9 | 6071 | #endif /* not sh_elf_merge_private_data */ |
d4845d57 | 6072 | |
3376eaf5 KK |
6073 | /* Override the generic function because we need to store sh_elf_obj_tdata |
6074 | as the specific tdata. We set also the machine architecture from flags | |
6075 | here. */ | |
6076 | ||
b34976b6 | 6077 | static bfd_boolean |
09fd220b | 6078 | sh_elf_object_p (bfd *abfd) |
3376eaf5 | 6079 | { |
8e45593f NC |
6080 | if (! sh_elf_set_mach_from_flags (abfd)) |
6081 | return FALSE; | |
6082 | ||
6083 | return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0) | |
6084 | == fdpic_object_p (abfd)); | |
3376eaf5 KK |
6085 | } |
6086 | ||
37c644f2 AO |
6087 | /* Finish up dynamic symbol handling. We set the contents of various |
6088 | dynamic sections here. */ | |
6089 | ||
b34976b6 | 6090 | static bfd_boolean |
09fd220b KK |
6091 | sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
6092 | struct elf_link_hash_entry *h, | |
6093 | Elf_Internal_Sym *sym) | |
37c644f2 | 6094 | { |
067653c5 | 6095 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 6096 | |
067653c5 | 6097 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
6098 | if (htab == NULL) |
6099 | return FALSE; | |
37c644f2 AO |
6100 | |
6101 | if (h->plt.offset != (bfd_vma) -1) | |
6102 | { | |
6103 | asection *splt; | |
8e45593f NC |
6104 | asection *sgotplt; |
6105 | asection *srelplt; | |
37c644f2 AO |
6106 | |
6107 | bfd_vma plt_index; | |
6108 | bfd_vma got_offset; | |
6109 | Elf_Internal_Rela rel; | |
947216bf | 6110 | bfd_byte *loc; |
8e45593f | 6111 | const struct elf_sh_plt_info *plt_info; |
37c644f2 AO |
6112 | |
6113 | /* This symbol has an entry in the procedure linkage table. Set | |
6114 | it up. */ | |
6115 | ||
6116 | BFD_ASSERT (h->dynindx != -1); | |
6117 | ||
ce558b89 AM |
6118 | splt = htab->root.splt; |
6119 | sgotplt = htab->root.sgotplt; | |
6120 | srelplt = htab->root.srelplt; | |
8e45593f | 6121 | BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL); |
37c644f2 AO |
6122 | |
6123 | /* Get the index in the procedure linkage table which | |
6124 | corresponds to this symbol. This is the index of this symbol | |
6125 | in all the symbols for which we are making plt entries. The | |
6126 | first entry in the procedure linkage table is reserved. */ | |
55e6e397 | 6127 | plt_index = get_plt_index (htab->plt_info, h->plt.offset); |
37c644f2 | 6128 | |
8e45593f NC |
6129 | plt_info = htab->plt_info; |
6130 | if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT) | |
6131 | plt_info = plt_info->short_plt; | |
6132 | ||
37c644f2 | 6133 | /* Get the offset into the .got table of the entry that |
8e45593f NC |
6134 | corresponds to this function. */ |
6135 | if (htab->fdpic_p) | |
6136 | /* The offset must be relative to the GOT symbol, twelve bytes | |
6137 | before the end of .got.plt. Each descriptor is eight | |
6138 | bytes. */ | |
6139 | got_offset = plt_index * 8 + 12 - sgotplt->size; | |
6140 | else | |
6141 | /* Each .got entry is 4 bytes. The first three are | |
6142 | reserved. */ | |
6143 | got_offset = (plt_index + 3) * 4; | |
37c644f2 | 6144 | |
fbca6ad9 | 6145 | #ifdef GOT_BIAS |
0e1862bb | 6146 | if (bfd_link_pic (info)) |
c8614e8e | 6147 | got_offset -= GOT_BIAS; |
fbca6ad9 AO |
6148 | #endif |
6149 | ||
37c644f2 | 6150 | /* Fill in the entry in the procedure linkage table. */ |
55e6e397 | 6151 | memcpy (splt->contents + h->plt.offset, |
8e45593f NC |
6152 | plt_info->symbol_entry, |
6153 | plt_info->symbol_entry_size); | |
55e6e397 | 6154 | |
0e1862bb | 6155 | if (bfd_link_pic (info) || htab->fdpic_p) |
8e45593f NC |
6156 | { |
6157 | if (plt_info->symbol_fields.got20) | |
6158 | { | |
6159 | bfd_reloc_status_type r; | |
6160 | r = install_movi20_field (output_bfd, got_offset, | |
6161 | splt->owner, splt, splt->contents, | |
6162 | h->plt.offset | |
6163 | + plt_info->symbol_fields.got_entry); | |
6164 | BFD_ASSERT (r == bfd_reloc_ok); | |
6165 | } | |
6166 | else | |
6167 | install_plt_field (output_bfd, FALSE, got_offset, | |
6168 | (splt->contents | |
6169 | + h->plt.offset | |
6170 | + plt_info->symbol_fields.got_entry)); | |
6171 | } | |
55e6e397 | 6172 | else |
37c644f2 | 6173 | { |
8e45593f NC |
6174 | BFD_ASSERT (!plt_info->symbol_fields.got20); |
6175 | ||
55e6e397 | 6176 | install_plt_field (output_bfd, FALSE, |
8e45593f NC |
6177 | (sgotplt->output_section->vma |
6178 | + sgotplt->output_offset | |
fbca6ad9 | 6179 | + got_offset), |
55e6e397 RS |
6180 | (splt->contents |
6181 | + h->plt.offset | |
8e45593f | 6182 | + plt_info->symbol_fields.got_entry)); |
55e6e397 | 6183 | if (htab->vxworks_p) |
37c644f2 | 6184 | { |
55e6e397 RS |
6185 | unsigned int reachable_plts, plts_per_4k; |
6186 | int distance; | |
6187 | ||
6188 | /* Divide the PLT into groups. The first group contains | |
6189 | REACHABLE_PLTS entries and the other groups contain | |
6190 | PLTS_PER_4K entries. Entries in the first group can | |
6191 | branch directly to .plt; those in later groups branch | |
6192 | to the last element of the previous group. */ | |
6193 | /* ??? It would be better to create multiple copies of | |
6194 | the common resolver stub. */ | |
6195 | reachable_plts = ((4096 | |
8e45593f NC |
6196 | - plt_info->plt0_entry_size |
6197 | - (plt_info->symbol_fields.plt + 4)) | |
6198 | / plt_info->symbol_entry_size) + 1; | |
6199 | plts_per_4k = (4096 / plt_info->symbol_entry_size); | |
55e6e397 RS |
6200 | if (plt_index < reachable_plts) |
6201 | distance = -(h->plt.offset | |
8e45593f | 6202 | + plt_info->symbol_fields.plt); |
55e6e397 RS |
6203 | else |
6204 | distance = -(((plt_index - reachable_plts) % plts_per_4k + 1) | |
8e45593f | 6205 | * plt_info->symbol_entry_size); |
55e6e397 RS |
6206 | |
6207 | /* Install the 'bra' with this offset. */ | |
6208 | bfd_put_16 (output_bfd, | |
6209 | 0xa000 | (0x0fff & ((distance - 4) / 2)), | |
6210 | (splt->contents | |
6211 | + h->plt.offset | |
8e45593f | 6212 | + plt_info->symbol_fields.plt)); |
37c644f2 | 6213 | } |
55e6e397 RS |
6214 | else |
6215 | install_plt_field (output_bfd, TRUE, | |
6216 | splt->output_section->vma + splt->output_offset, | |
6217 | (splt->contents | |
6218 | + h->plt.offset | |
8e45593f | 6219 | + plt_info->symbol_fields.plt)); |
37c644f2 AO |
6220 | } |
6221 | ||
8e45593f | 6222 | /* Make got_offset relative to the start of .got.plt. */ |
fbca6ad9 | 6223 | #ifdef GOT_BIAS |
0e1862bb | 6224 | if (bfd_link_pic (info)) |
c8614e8e | 6225 | got_offset += GOT_BIAS; |
fbca6ad9 | 6226 | #endif |
8e45593f NC |
6227 | if (htab->fdpic_p) |
6228 | got_offset = plt_index * 8; | |
fbca6ad9 | 6229 | |
8e45593f NC |
6230 | if (plt_info->symbol_fields.reloc_offset != MINUS_ONE) |
6231 | install_plt_field (output_bfd, FALSE, | |
6232 | plt_index * sizeof (Elf32_External_Rela), | |
6233 | (splt->contents | |
6234 | + h->plt.offset | |
6235 | + plt_info->symbol_fields.reloc_offset)); | |
37c644f2 AO |
6236 | |
6237 | /* Fill in the entry in the global offset table. */ | |
6238 | bfd_put_32 (output_bfd, | |
6239 | (splt->output_section->vma | |
6240 | + splt->output_offset | |
6241 | + h->plt.offset | |
8e45593f NC |
6242 | + plt_info->symbol_resolve_offset), |
6243 | sgotplt->contents + got_offset); | |
6244 | if (htab->fdpic_p) | |
6245 | bfd_put_32 (output_bfd, | |
ce558b89 | 6246 | sh_elf_osec_to_segment (output_bfd, splt->output_section), |
8e45593f | 6247 | sgotplt->contents + got_offset + 4); |
37c644f2 AO |
6248 | |
6249 | /* Fill in the entry in the .rela.plt section. */ | |
8e45593f NC |
6250 | rel.r_offset = (sgotplt->output_section->vma |
6251 | + sgotplt->output_offset | |
37c644f2 | 6252 | + got_offset); |
8e45593f NC |
6253 | if (htab->fdpic_p) |
6254 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE); | |
6255 | else | |
6256 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT); | |
37c644f2 | 6257 | rel.r_addend = 0; |
fbca6ad9 AO |
6258 | #ifdef GOT_BIAS |
6259 | rel.r_addend = GOT_BIAS; | |
6260 | #endif | |
8e45593f | 6261 | loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela); |
947216bf | 6262 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
37c644f2 | 6263 | |
0e1862bb | 6264 | if (htab->vxworks_p && !bfd_link_pic (info)) |
55e6e397 RS |
6265 | { |
6266 | /* Create the .rela.plt.unloaded relocations for this PLT entry. | |
6267 | Begin by pointing LOC to the first such relocation. */ | |
6268 | loc = (htab->srelplt2->contents | |
6269 | + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela)); | |
6270 | ||
6271 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation | |
6272 | for the PLT entry's pointer to the .got.plt entry. */ | |
ce558b89 AM |
6273 | rel.r_offset = (splt->output_section->vma |
6274 | + splt->output_offset | |
55e6e397 | 6275 | + h->plt.offset |
8e45593f | 6276 | + plt_info->symbol_fields.got_entry); |
55e6e397 RS |
6277 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); |
6278 | rel.r_addend = got_offset; | |
6279 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
6280 | loc += sizeof (Elf32_External_Rela); | |
6281 | ||
6282 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for | |
6283 | the .got.plt entry, which initially points to .plt. */ | |
8e45593f NC |
6284 | rel.r_offset = (sgotplt->output_section->vma |
6285 | + sgotplt->output_offset | |
55e6e397 RS |
6286 | + got_offset); |
6287 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32); | |
6288 | rel.r_addend = 0; | |
6289 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6290 | } | |
6291 | ||
f5385ebf | 6292 | if (!h->def_regular) |
37c644f2 AO |
6293 | { |
6294 | /* Mark the symbol as undefined, rather than as defined in | |
6295 | the .plt section. Leave the value alone. */ | |
6296 | sym->st_shndx = SHN_UNDEF; | |
6297 | } | |
6298 | } | |
6299 | ||
3376eaf5 | 6300 | if (h->got.offset != (bfd_vma) -1 |
8e45593f NC |
6301 | && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD |
6302 | && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE | |
6303 | && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC) | |
37c644f2 AO |
6304 | { |
6305 | asection *sgot; | |
8e45593f | 6306 | asection *srelgot; |
37c644f2 | 6307 | Elf_Internal_Rela rel; |
947216bf | 6308 | bfd_byte *loc; |
37c644f2 AO |
6309 | |
6310 | /* This symbol has an entry in the global offset table. Set it | |
6311 | up. */ | |
6312 | ||
ce558b89 AM |
6313 | sgot = htab->root.sgot; |
6314 | srelgot = htab->root.srelgot; | |
8e45593f | 6315 | BFD_ASSERT (sgot != NULL && srelgot != NULL); |
37c644f2 AO |
6316 | |
6317 | rel.r_offset = (sgot->output_section->vma | |
6318 | + sgot->output_offset | |
dc810e39 | 6319 | + (h->got.offset &~ (bfd_vma) 1)); |
37c644f2 | 6320 | |
067653c5 AM |
6321 | /* If this is a static link, or it is a -Bsymbolic link and the |
6322 | symbol is defined locally or was forced to be local because | |
6323 | of a version file, we just want to emit a RELATIVE reloc. | |
37c644f2 AO |
6324 | The entry in the global offset table will already have been |
6325 | initialized in the relocate_section function. */ | |
0e1862bb | 6326 | if (bfd_link_pic (info) |
3d85aebe | 6327 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
37c644f2 | 6328 | { |
8e45593f NC |
6329 | if (htab->fdpic_p) |
6330 | { | |
6331 | asection *sec = h->root.u.def.section; | |
6332 | int dynindx | |
6333 | = elf_section_data (sec->output_section)->dynindx; | |
6334 | ||
6335 | rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
6336 | rel.r_addend = (h->root.u.def.value | |
6337 | + h->root.u.def.section->output_offset); | |
6338 | } | |
6339 | else | |
6340 | { | |
6341 | rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
6342 | rel.r_addend = (h->root.u.def.value | |
6343 | + h->root.u.def.section->output_section->vma | |
6344 | + h->root.u.def.section->output_offset); | |
6345 | } | |
37c644f2 AO |
6346 | } |
6347 | else | |
6348 | { | |
6349 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
6350 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT); | |
6351 | rel.r_addend = 0; | |
6352 | } | |
6353 | ||
8e45593f NC |
6354 | loc = srelgot->contents; |
6355 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
947216bf | 6356 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
37c644f2 AO |
6357 | } |
6358 | ||
f5385ebf | 6359 | if (h->needs_copy) |
37c644f2 AO |
6360 | { |
6361 | asection *s; | |
6362 | Elf_Internal_Rela rel; | |
947216bf | 6363 | bfd_byte *loc; |
37c644f2 AO |
6364 | |
6365 | /* This symbol needs a copy reloc. Set it up. */ | |
6366 | ||
6367 | BFD_ASSERT (h->dynindx != -1 | |
6368 | && (h->root.type == bfd_link_hash_defined | |
6369 | || h->root.type == bfd_link_hash_defweak)); | |
6370 | ||
3d4d4302 | 6371 | s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss"); |
37c644f2 AO |
6372 | BFD_ASSERT (s != NULL); |
6373 | ||
6374 | rel.r_offset = (h->root.u.def.value | |
6375 | + h->root.u.def.section->output_section->vma | |
6376 | + h->root.u.def.section->output_offset); | |
6377 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY); | |
6378 | rel.r_addend = 0; | |
947216bf AM |
6379 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
6380 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
37c644f2 AO |
6381 | } |
6382 | ||
55e6e397 RS |
6383 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks, |
6384 | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the | |
6385 | ".got" section. */ | |
9637f6ef | 6386 | if (h == htab->root.hdynamic |
55e6e397 | 6387 | || (!htab->vxworks_p && h == htab->root.hgot)) |
37c644f2 AO |
6388 | sym->st_shndx = SHN_ABS; |
6389 | ||
b34976b6 | 6390 | return TRUE; |
37c644f2 AO |
6391 | } |
6392 | ||
6393 | /* Finish up the dynamic sections. */ | |
6394 | ||
b34976b6 | 6395 | static bfd_boolean |
09fd220b | 6396 | sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
37c644f2 | 6397 | { |
067653c5 | 6398 | struct elf_sh_link_hash_table *htab; |
8e45593f | 6399 | asection *sgotplt; |
37c644f2 AO |
6400 | asection *sdyn; |
6401 | ||
067653c5 | 6402 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
6403 | if (htab == NULL) |
6404 | return FALSE; | |
6405 | ||
ce558b89 | 6406 | sgotplt = htab->root.sgotplt; |
3d4d4302 | 6407 | sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic"); |
37c644f2 | 6408 | |
067653c5 | 6409 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
6410 | { |
6411 | asection *splt; | |
6412 | Elf32_External_Dyn *dyncon, *dynconend; | |
6413 | ||
8e45593f | 6414 | BFD_ASSERT (sgotplt != NULL && sdyn != NULL); |
37c644f2 AO |
6415 | |
6416 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 6417 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
37c644f2 AO |
6418 | for (; dyncon < dynconend; dyncon++) |
6419 | { | |
6420 | Elf_Internal_Dyn dyn; | |
37c644f2 AO |
6421 | asection *s; |
6422 | ||
2293c499 | 6423 | bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn); |
37c644f2 AO |
6424 | |
6425 | switch (dyn.d_tag) | |
6426 | { | |
6427 | default: | |
7a2b07ff NS |
6428 | if (htab->vxworks_p |
6429 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
6430 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
37c644f2 AO |
6431 | break; |
6432 | ||
6433 | case DT_PLTGOT: | |
8e45593f NC |
6434 | BFD_ASSERT (htab->root.hgot != NULL); |
6435 | s = htab->root.hgot->root.u.def.section; | |
6436 | dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value | |
6437 | + s->output_section->vma + s->output_offset; | |
6438 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6439 | break; | |
37c644f2 AO |
6440 | |
6441 | case DT_JMPREL: | |
ce558b89 | 6442 | s = htab->root.srelplt->output_section; |
37c644f2 AO |
6443 | BFD_ASSERT (s != NULL); |
6444 | dyn.d_un.d_ptr = s->vma; | |
6445 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6446 | break; | |
6447 | ||
6448 | case DT_PLTRELSZ: | |
ce558b89 | 6449 | s = htab->root.srelplt->output_section; |
37c644f2 | 6450 | BFD_ASSERT (s != NULL); |
eea6121a | 6451 | dyn.d_un.d_val = s->size; |
37c644f2 AO |
6452 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6453 | break; | |
37c644f2 AO |
6454 | } |
6455 | } | |
6456 | ||
6457 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 6458 | splt = htab->root.splt; |
55e6e397 | 6459 | if (splt && splt->size > 0 && htab->plt_info->plt0_entry) |
37c644f2 | 6460 | { |
55e6e397 RS |
6461 | unsigned int i; |
6462 | ||
6463 | memcpy (splt->contents, | |
6464 | htab->plt_info->plt0_entry, | |
6465 | htab->plt_info->plt0_entry_size); | |
6466 | for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++) | |
6467 | if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE) | |
6468 | install_plt_field (output_bfd, FALSE, | |
8e45593f NC |
6469 | (sgotplt->output_section->vma |
6470 | + sgotplt->output_offset | |
55e6e397 RS |
6471 | + (i * 4)), |
6472 | (splt->contents | |
6473 | + htab->plt_info->plt0_got_fields[i])); | |
6474 | ||
6475 | if (htab->vxworks_p) | |
37c644f2 | 6476 | { |
55e6e397 RS |
6477 | /* Finalize the .rela.plt.unloaded contents. */ |
6478 | Elf_Internal_Rela rel; | |
6479 | bfd_byte *loc; | |
6480 | ||
6481 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the | |
6482 | first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */ | |
6483 | loc = htab->srelplt2->contents; | |
6484 | rel.r_offset = (splt->output_section->vma | |
6485 | + splt->output_offset | |
6486 | + htab->plt_info->plt0_got_fields[2]); | |
6487 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); | |
6488 | rel.r_addend = 8; | |
6489 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
6490 | loc += sizeof (Elf32_External_Rela); | |
6491 | ||
6492 | /* Fix up the remaining .rela.plt.unloaded relocations. | |
6493 | They may have the wrong symbol index for _G_O_T_ or | |
6494 | _P_L_T_ depending on the order in which symbols were | |
6495 | output. */ | |
6496 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
37c644f2 | 6497 | { |
55e6e397 RS |
6498 | /* The PLT entry's pointer to the .got.plt slot. */ |
6499 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
6500 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, | |
6501 | R_SH_DIR32); | |
6502 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6503 | loc += sizeof (Elf32_External_Rela); | |
6504 | ||
6505 | /* The .got.plt slot's pointer to .plt. */ | |
6506 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
6507 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, | |
6508 | R_SH_DIR32); | |
6509 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6510 | loc += sizeof (Elf32_External_Rela); | |
37c644f2 | 6511 | } |
37c644f2 AO |
6512 | } |
6513 | ||
6514 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
6515 | really seem like the right value. */ | |
6516 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
6517 | } | |
6518 | } | |
6519 | ||
6520 | /* Fill in the first three entries in the global offset table. */ | |
8e45593f | 6521 | if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p) |
37c644f2 AO |
6522 | { |
6523 | if (sdyn == NULL) | |
8e45593f | 6524 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); |
37c644f2 AO |
6525 | else |
6526 | bfd_put_32 (output_bfd, | |
6527 | sdyn->output_section->vma + sdyn->output_offset, | |
8e45593f NC |
6528 | sgotplt->contents); |
6529 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); | |
6530 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); | |
6531 | } | |
37c644f2 | 6532 | |
8e45593f NC |
6533 | if (sgotplt && sgotplt->size > 0) |
6534 | elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; | |
68ffbac6 | 6535 | |
8e45593f NC |
6536 | /* At the very end of the .rofixup section is a pointer to the GOT. */ |
6537 | if (htab->fdpic_p && htab->srofixup != NULL) | |
6538 | { | |
6539 | struct elf_link_hash_entry *hgot = htab->root.hgot; | |
6540 | bfd_vma got_value = hgot->root.u.def.value | |
6541 | + hgot->root.u.def.section->output_section->vma | |
6542 | + hgot->root.u.def.section->output_offset; | |
6543 | ||
6544 | sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value); | |
6545 | ||
6546 | /* Make sure we allocated and generated the same number of fixups. */ | |
6547 | BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size); | |
067653c5 | 6548 | } |
37c644f2 | 6549 | |
8e45593f NC |
6550 | if (htab->srelfuncdesc) |
6551 | BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela) | |
6552 | == htab->srelfuncdesc->size); | |
6553 | ||
ce558b89 AM |
6554 | if (htab->root.srelgot) |
6555 | BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela) | |
6556 | == htab->root.srelgot->size); | |
8e45593f | 6557 | |
b34976b6 | 6558 | return TRUE; |
37c644f2 AO |
6559 | } |
6560 | ||
99e4ae17 | 6561 | static enum elf_reloc_type_class |
7e612e98 AM |
6562 | sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
6563 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
6564 | const Elf_Internal_Rela *rela) | |
99e4ae17 | 6565 | { |
f51e552e | 6566 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
6567 | { |
6568 | case R_SH_RELATIVE: | |
6569 | return reloc_class_relative; | |
6570 | case R_SH_JMP_SLOT: | |
6571 | return reloc_class_plt; | |
6572 | case R_SH_COPY: | |
6573 | return reloc_class_copy; | |
6574 | default: | |
6575 | return reloc_class_normal; | |
6576 | } | |
6577 | } | |
6578 | ||
85fbca6a | 6579 | #if !defined SH_TARGET_ALREADY_DEFINED |
571fe01f | 6580 | /* Support for Linux core dump NOTE sections. */ |
85fbca6a | 6581 | |
b34976b6 | 6582 | static bfd_boolean |
09fd220b | 6583 | elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
6584 | { |
6585 | int offset; | |
eea6121a | 6586 | unsigned int size; |
2bc3c89a AM |
6587 | |
6588 | switch (note->descsz) | |
6589 | { | |
6590 | default: | |
b34976b6 | 6591 | return FALSE; |
2bc3c89a AM |
6592 | |
6593 | case 168: /* Linux/SH */ | |
6594 | /* pr_cursig */ | |
228e534f | 6595 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
2bc3c89a AM |
6596 | |
6597 | /* pr_pid */ | |
228e534f | 6598 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
2bc3c89a AM |
6599 | |
6600 | /* pr_reg */ | |
6601 | offset = 72; | |
eea6121a | 6602 | size = 92; |
2bc3c89a AM |
6603 | |
6604 | break; | |
6605 | } | |
6606 | ||
6607 | /* Make a ".reg/999" section. */ | |
6608 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 6609 | size, note->descpos + offset); |
2bc3c89a AM |
6610 | } |
6611 | ||
b34976b6 | 6612 | static bfd_boolean |
09fd220b | 6613 | elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
6614 | { |
6615 | switch (note->descsz) | |
6616 | { | |
6617 | default: | |
b34976b6 | 6618 | return FALSE; |
2bc3c89a AM |
6619 | |
6620 | case 124: /* Linux/SH elf_prpsinfo */ | |
228e534f | 6621 | elf_tdata (abfd)->core->program |
2bc3c89a | 6622 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); |
228e534f | 6623 | elf_tdata (abfd)->core->command |
2bc3c89a AM |
6624 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); |
6625 | } | |
6626 | ||
6627 | /* Note that for some reason, a spurious space is tacked | |
6628 | onto the end of the args in some (at least one anyway) | |
6629 | implementations, so strip it off if it exists. */ | |
6630 | ||
6631 | { | |
228e534f | 6632 | char *command = elf_tdata (abfd)->core->command; |
2bc3c89a AM |
6633 | int n = strlen (command); |
6634 | ||
6635 | if (0 < n && command[n - 1] == ' ') | |
6636 | command[n - 1] = '\0'; | |
6637 | } | |
6638 | ||
b34976b6 | 6639 | return TRUE; |
2bc3c89a | 6640 | } |
85fbca6a | 6641 | #endif /* not SH_TARGET_ALREADY_DEFINED */ |
2bc3c89a | 6642 | |
68ffbac6 | 6643 | |
1f1799d5 KK |
6644 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
6645 | or (bfd_vma) -1 if it should not be included. */ | |
6646 | ||
6647 | static bfd_vma | |
6648 | sh_elf_plt_sym_val (bfd_vma i, const asection *plt, | |
6649 | const arelent *rel ATTRIBUTE_UNUSED) | |
6650 | { | |
55e6e397 RS |
6651 | const struct elf_sh_plt_info *plt_info; |
6652 | ||
6653 | plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0); | |
6654 | return plt->vma + get_plt_offset (plt_info, i); | |
1f1799d5 KK |
6655 | } |
6656 | ||
8e45593f NC |
6657 | /* Decide whether to attempt to turn absptr or lsda encodings in |
6658 | shared libraries into pcrel within the given input section. */ | |
6659 | ||
6660 | static bfd_boolean | |
6661 | sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED, | |
6662 | struct bfd_link_info *info, | |
6663 | asection *eh_frame_section ATTRIBUTE_UNUSED) | |
6664 | { | |
6665 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
6666 | ||
6667 | /* We can't use PC-relative encodings in FDPIC binaries, in general. */ | |
6668 | if (htab->fdpic_p) | |
6669 | return FALSE; | |
6670 | ||
6671 | return TRUE; | |
6672 | } | |
6673 | ||
6674 | /* Adjust the contents of an eh_frame_hdr section before they're output. */ | |
6675 | ||
6676 | static bfd_byte | |
6677 | sh_elf_encode_eh_address (bfd *abfd, | |
6678 | struct bfd_link_info *info, | |
6679 | asection *osec, bfd_vma offset, | |
6680 | asection *loc_sec, bfd_vma loc_offset, | |
6681 | bfd_vma *encoded) | |
6682 | { | |
6683 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
6684 | struct elf_link_hash_entry *h; | |
6685 | ||
6686 | if (!htab->fdpic_p) | |
6687 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec, | |
6688 | loc_offset, encoded); | |
6689 | ||
6690 | h = htab->root.hgot; | |
6691 | BFD_ASSERT (h && h->root.type == bfd_link_hash_defined); | |
6692 | ||
6693 | if (! h || (sh_elf_osec_to_segment (abfd, osec) | |
6694 | == sh_elf_osec_to_segment (abfd, loc_sec->output_section))) | |
6695 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, | |
6696 | loc_sec, loc_offset, encoded); | |
6697 | ||
6698 | BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec) | |
6699 | == (sh_elf_osec_to_segment | |
6700 | (abfd, h->root.u.def.section->output_section))); | |
6701 | ||
6702 | *encoded = osec->vma + offset | |
6703 | - (h->root.u.def.value | |
6704 | + h->root.u.def.section->output_section->vma | |
6705 | + h->root.u.def.section->output_offset); | |
6706 | ||
6707 | return DW_EH_PE_datarel | DW_EH_PE_sdata4; | |
6708 | } | |
6709 | ||
85fbca6a | 6710 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 | 6711 | #define TARGET_BIG_SYM sh_elf32_vec |
252b5132 | 6712 | #define TARGET_BIG_NAME "elf32-sh" |
6d00b590 | 6713 | #define TARGET_LITTLE_SYM sh_elf32_le_vec |
252b5132 | 6714 | #define TARGET_LITTLE_NAME "elf32-shl" |
85fbca6a NC |
6715 | #endif |
6716 | ||
252b5132 | 6717 | #define ELF_ARCH bfd_arch_sh |
ae95ffa6 | 6718 | #define ELF_TARGET_ID SH_ELF_DATA |
252b5132 | 6719 | #define ELF_MACHINE_CODE EM_SH |
d0facd1b NC |
6720 | #ifdef __QNXTARGET__ |
6721 | #define ELF_MAXPAGESIZE 0x1000 | |
6722 | #else | |
6723 | #define ELF_MAXPAGESIZE 0x80 | |
6724 | #endif | |
252b5132 RH |
6725 | |
6726 | #define elf_symbol_leading_char '_' | |
6727 | ||
6728 | #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup | |
157090f7 AM |
6729 | #define bfd_elf32_bfd_reloc_name_lookup \ |
6730 | sh_elf_reloc_name_lookup | |
252b5132 RH |
6731 | #define elf_info_to_howto sh_elf_info_to_howto |
6732 | #define bfd_elf32_bfd_relax_section sh_elf_relax_section | |
6733 | #define elf_backend_relocate_section sh_elf_relocate_section | |
6734 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
6735 | sh_elf_get_relocated_section_contents | |
3376eaf5 KK |
6736 | #define bfd_elf32_mkobject sh_elf_mkobject |
6737 | #define elf_backend_object_p sh_elf_object_p | |
d4845d57 JR |
6738 | #define bfd_elf32_bfd_copy_private_bfd_data \ |
6739 | sh_elf_copy_private_data | |
875f7f69 | 6740 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
d4845d57 | 6741 | sh_elf_merge_private_data |
252b5132 | 6742 | |
067653c5 | 6743 | #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook |
067653c5 AM |
6744 | #define elf_backend_check_relocs sh_elf_check_relocs |
6745 | #define elf_backend_copy_indirect_symbol \ | |
6746 | sh_elf_copy_indirect_symbol | |
37c644f2 AO |
6747 | #define elf_backend_create_dynamic_sections \ |
6748 | sh_elf_create_dynamic_sections | |
6749 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6750 | sh_elf_link_hash_table_create | |
6751 | #define elf_backend_adjust_dynamic_symbol \ | |
6752 | sh_elf_adjust_dynamic_symbol | |
55e6e397 RS |
6753 | #define elf_backend_always_size_sections \ |
6754 | sh_elf_always_size_sections | |
37c644f2 AO |
6755 | #define elf_backend_size_dynamic_sections \ |
6756 | sh_elf_size_dynamic_sections | |
8e45593f | 6757 | #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym |
37c644f2 AO |
6758 | #define elf_backend_finish_dynamic_symbol \ |
6759 | sh_elf_finish_dynamic_symbol | |
6760 | #define elf_backend_finish_dynamic_sections \ | |
6761 | sh_elf_finish_dynamic_sections | |
99e4ae17 | 6762 | #define elf_backend_reloc_type_class sh_elf_reloc_type_class |
1f1799d5 | 6763 | #define elf_backend_plt_sym_val sh_elf_plt_sym_val |
8e45593f NC |
6764 | #define elf_backend_can_make_relative_eh_frame \ |
6765 | sh_elf_use_relative_eh_frame | |
6766 | #define elf_backend_can_make_lsda_relative_eh_frame \ | |
6767 | sh_elf_use_relative_eh_frame | |
6768 | #define elf_backend_encode_eh_address \ | |
6769 | sh_elf_encode_eh_address | |
37c644f2 | 6770 | |
04c3a755 | 6771 | #define elf_backend_stack_align 8 |
067653c5 AM |
6772 | #define elf_backend_can_gc_sections 1 |
6773 | #define elf_backend_can_refcount 1 | |
37c644f2 AO |
6774 | #define elf_backend_want_got_plt 1 |
6775 | #define elf_backend_plt_readonly 1 | |
6776 | #define elf_backend_want_plt_sym 0 | |
6777 | #define elf_backend_got_header_size 12 | |
64f52338 | 6778 | #define elf_backend_dtrel_excludes_plt 1 |
ed71e111 | 6779 | |
a2f63b2e MR |
6780 | #define elf_backend_linux_prpsinfo32_ugid16 TRUE |
6781 | ||
211dc24b | 6782 | #if !defined SH_TARGET_ALREADY_DEFINED |
2bc3c89a | 6783 | |
252b5132 | 6784 | #include "elf32-target.h" |
ed71e111 | 6785 | |
2bc3c89a AM |
6786 | /* NetBSD support. */ |
6787 | #undef TARGET_BIG_SYM | |
6d00b590 | 6788 | #define TARGET_BIG_SYM sh_elf32_nbsd_vec |
2bc3c89a AM |
6789 | #undef TARGET_BIG_NAME |
6790 | #define TARGET_BIG_NAME "elf32-sh-nbsd" | |
6791 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6792 | #define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec |
2bc3c89a AM |
6793 | #undef TARGET_LITTLE_NAME |
6794 | #define TARGET_LITTLE_NAME "elf32-shl-nbsd" | |
6795 | #undef ELF_MAXPAGESIZE | |
6796 | #define ELF_MAXPAGESIZE 0x10000 | |
24718e3b | 6797 | #undef ELF_COMMONPAGESIZE |
2bc3c89a AM |
6798 | #undef elf_symbol_leading_char |
6799 | #define elf_symbol_leading_char 0 | |
571fe01f | 6800 | #undef elf32_bed |
2bc3c89a AM |
6801 | #define elf32_bed elf32_sh_nbsd_bed |
6802 | ||
6803 | #include "elf32-target.h" | |
6804 | ||
2bc3c89a AM |
6805 | |
6806 | /* Linux support. */ | |
6807 | #undef TARGET_BIG_SYM | |
6d00b590 | 6808 | #define TARGET_BIG_SYM sh_elf32_linux_be_vec |
2bc3c89a AM |
6809 | #undef TARGET_BIG_NAME |
6810 | #define TARGET_BIG_NAME "elf32-shbig-linux" | |
6811 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6812 | #define TARGET_LITTLE_SYM sh_elf32_linux_vec |
2bc3c89a AM |
6813 | #undef TARGET_LITTLE_NAME |
6814 | #define TARGET_LITTLE_NAME "elf32-sh-linux" | |
24718e3b L |
6815 | #undef ELF_COMMONPAGESIZE |
6816 | #define ELF_COMMONPAGESIZE 0x1000 | |
2bc3c89a AM |
6817 | |
6818 | #undef elf_backend_grok_prstatus | |
6819 | #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus | |
6820 | #undef elf_backend_grok_psinfo | |
6821 | #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo | |
571fe01f | 6822 | #undef elf32_bed |
2bc3c89a AM |
6823 | #define elf32_bed elf32_sh_lin_bed |
6824 | ||
6825 | #include "elf32-target.h" | |
6826 | ||
8e45593f NC |
6827 | |
6828 | /* FDPIC support. */ | |
6829 | #undef TARGET_BIG_SYM | |
6d00b590 | 6830 | #define TARGET_BIG_SYM sh_elf32_fdpic_be_vec |
8e45593f NC |
6831 | #undef TARGET_BIG_NAME |
6832 | #define TARGET_BIG_NAME "elf32-shbig-fdpic" | |
6833 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6834 | #define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec |
8e45593f NC |
6835 | #undef TARGET_LITTLE_NAME |
6836 | #define TARGET_LITTLE_NAME "elf32-sh-fdpic" | |
8e45593f NC |
6837 | |
6838 | #undef elf32_bed | |
6839 | #define elf32_bed elf32_sh_fd_bed | |
6840 | ||
6841 | #include "elf32-target.h" | |
6842 | ||
8e45593f | 6843 | /* VxWorks support. */ |
55e6e397 | 6844 | #undef TARGET_BIG_SYM |
6d00b590 | 6845 | #define TARGET_BIG_SYM sh_elf32_vxworks_vec |
55e6e397 RS |
6846 | #undef TARGET_BIG_NAME |
6847 | #define TARGET_BIG_NAME "elf32-sh-vxworks" | |
6848 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6849 | #define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec |
55e6e397 RS |
6850 | #undef TARGET_LITTLE_NAME |
6851 | #define TARGET_LITTLE_NAME "elf32-shl-vxworks" | |
6852 | #undef elf32_bed | |
6853 | #define elf32_bed elf32_sh_vxworks_bed | |
6854 | ||
6855 | #undef elf_backend_want_plt_sym | |
6856 | #define elf_backend_want_plt_sym 1 | |
6857 | #undef elf_symbol_leading_char | |
6858 | #define elf_symbol_leading_char '_' | |
6859 | #define elf_backend_want_got_underscore 1 | |
6860 | #undef elf_backend_grok_prstatus | |
6861 | #undef elf_backend_grok_psinfo | |
6862 | #undef elf_backend_add_symbol_hook | |
6863 | #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook | |
6864 | #undef elf_backend_link_output_symbol_hook | |
6865 | #define elf_backend_link_output_symbol_hook \ | |
6866 | elf_vxworks_link_output_symbol_hook | |
6867 | #undef elf_backend_emit_relocs | |
6868 | #define elf_backend_emit_relocs elf_vxworks_emit_relocs | |
6869 | #undef elf_backend_final_write_processing | |
6870 | #define elf_backend_final_write_processing \ | |
6871 | elf_vxworks_final_write_processing | |
6872 | #undef ELF_MAXPAGESIZE | |
6873 | #define ELF_MAXPAGESIZE 0x1000 | |
6874 | #undef ELF_COMMONPAGESIZE | |
6875 | ||
6876 | #include "elf32-target.h" | |
6877 | ||
211dc24b | 6878 | #endif /* not SH_TARGET_ALREADY_DEFINED */ |