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ef230218 | 1 | /* Renesas / SuperH SH specific support for 32-bit ELF |
82704155 | 2 | Copyright (C) 1996-2019 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 RH |
32 | |
33 | static bfd_reloc_status_type sh_elf_reloc | |
09fd220b | 34 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
252b5132 | 35 | static bfd_reloc_status_type sh_elf_ignore_reloc |
09fd220b | 36 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
b34976b6 | 37 | static bfd_boolean sh_elf_relax_delete_bytes |
09fd220b | 38 | (bfd *, asection *, bfd_vma, int); |
b34976b6 | 39 | static bfd_boolean sh_elf_align_loads |
09fd220b | 40 | (bfd *, asection *, Elf_Internal_Rela *, bfd_byte *, bfd_boolean *); |
b34976b6 | 41 | static bfd_boolean sh_elf_swap_insns |
09fd220b | 42 | (bfd *, asection *, void *, bfd_byte *, bfd_vma); |
3376eaf5 | 43 | static int sh_elf_optimized_tls_reloc |
09fd220b | 44 | (struct bfd_link_info *, int, int); |
3376eaf5 | 45 | static bfd_vma dtpoff_base |
09fd220b | 46 | (struct bfd_link_info *); |
267fb3c1 | 47 | static bfd_vma tpoff |
09fd220b | 48 | (struct bfd_link_info *, bfd_vma); |
37c644f2 AO |
49 | |
50 | /* The name of the dynamic interpreter. This is put in the .interp | |
51 | section. */ | |
52 | ||
53 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
252b5132 | 54 | |
8e45593f NC |
55 | /* FDPIC binaries have a default 128K stack. */ |
56 | #define DEFAULT_STACK_SIZE 0x20000 | |
57 | ||
55e6e397 | 58 | #define MINUS_ONE ((bfd_vma) 0 - 1) |
8e45593f NC |
59 | |
60 | /* Decide whether a reference to a symbol can be resolved locally or | |
61 | not. If the symbol is protected, we want the local address, but | |
62 | its function descriptor must be assigned by the dynamic linker. */ | |
63 | #define SYMBOL_FUNCDESC_LOCAL(INFO, H) \ | |
64 | (SYMBOL_REFERENCES_LOCAL (INFO, H) \ | |
65 | || ! elf_hash_table (INFO)->dynamic_sections_created) | |
55e6e397 RS |
66 | \f |
67 | #define SH_PARTIAL32 TRUE | |
68 | #define SH_SRC_MASK32 0xffffffff | |
69 | #define SH_ELF_RELOC sh_elf_reloc | |
38b1a46c NC |
70 | static reloc_howto_type sh_elf_howto_table[] = |
71 | { | |
55e6e397 RS |
72 | #include "elf32-sh-relocs.h" |
73 | }; | |
fbca6ad9 | 74 | |
55e6e397 RS |
75 | #define SH_PARTIAL32 FALSE |
76 | #define SH_SRC_MASK32 0 | |
77 | #define SH_ELF_RELOC bfd_elf_generic_reloc | |
78 | static reloc_howto_type sh_vxworks_howto_table[] = | |
79 | { | |
80 | #include "elf32-sh-relocs.h" | |
81 | }; | |
82 | \f | |
83 | /* Return true if OUTPUT_BFD is a VxWorks object. */ | |
fbca6ad9 | 84 | |
55e6e397 | 85 | static bfd_boolean |
527a23b8 | 86 | vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED) |
55e6e397 | 87 | { |
211dc24b | 88 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 AM |
89 | extern const bfd_target sh_elf32_vxworks_le_vec; |
90 | extern const bfd_target sh_elf32_vxworks_vec; | |
fbca6ad9 | 91 | |
6d00b590 AM |
92 | return (abfd->xvec == &sh_elf32_vxworks_le_vec |
93 | || abfd->xvec == &sh_elf32_vxworks_vec); | |
527a23b8 NC |
94 | #else |
95 | return FALSE; | |
96 | #endif | |
55e6e397 | 97 | } |
fbca6ad9 | 98 | |
8e45593f NC |
99 | /* Return true if OUTPUT_BFD is an FDPIC object. */ |
100 | ||
101 | static bfd_boolean | |
102 | fdpic_object_p (bfd *abfd ATTRIBUTE_UNUSED) | |
103 | { | |
211dc24b | 104 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 AM |
105 | extern const bfd_target sh_elf32_fdpic_le_vec; |
106 | extern const bfd_target sh_elf32_fdpic_be_vec; | |
8e45593f | 107 | |
6d00b590 AM |
108 | return (abfd->xvec == &sh_elf32_fdpic_le_vec |
109 | || abfd->xvec == &sh_elf32_fdpic_be_vec); | |
8e45593f NC |
110 | #else |
111 | return FALSE; | |
112 | #endif | |
113 | } | |
114 | ||
55e6e397 | 115 | /* Return the howto table for ABFD. */ |
fbca6ad9 | 116 | |
55e6e397 RS |
117 | static reloc_howto_type * |
118 | get_howto_table (bfd *abfd) | |
119 | { | |
120 | if (vxworks_object_p (abfd)) | |
121 | return sh_vxworks_howto_table; | |
122 | return sh_elf_howto_table; | |
123 | } | |
252b5132 | 124 | |
015551fc | 125 | static bfd_reloc_status_type |
09fd220b KK |
126 | sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd, |
127 | asection *input_section, bfd_byte *contents, | |
128 | bfd_vma addr, asection *symbol_section, | |
129 | bfd_vma start, bfd_vma end) | |
015551fc JR |
130 | { |
131 | static bfd_vma last_addr; | |
00fdaf47 | 132 | static asection *last_symbol_section; |
015551fc JR |
133 | bfd_byte *start_ptr, *ptr, *last_ptr; |
134 | int diff, cum_diff; | |
135 | bfd_signed_vma x; | |
136 | int insn; | |
137 | ||
138 | /* Sanity check the address. */ | |
07515404 | 139 | if (addr > bfd_get_section_limit (input_bfd, input_section)) |
015551fc JR |
140 | return bfd_reloc_outofrange; |
141 | ||
142 | /* We require the start and end relocations to be processed consecutively - | |
143 | although we allow then to be processed forwards or backwards. */ | |
144 | if (! last_addr) | |
145 | { | |
146 | last_addr = addr; | |
147 | last_symbol_section = symbol_section; | |
148 | return bfd_reloc_ok; | |
149 | } | |
150 | if (last_addr != addr) | |
151 | abort (); | |
152 | last_addr = 0; | |
153 | ||
154 | if (! symbol_section || last_symbol_section != symbol_section || end < start) | |
155 | return bfd_reloc_outofrange; | |
156 | ||
157 | /* Get the symbol_section contents. */ | |
158 | if (symbol_section != input_section) | |
159 | { | |
160 | if (elf_section_data (symbol_section)->this_hdr.contents != NULL) | |
161 | contents = elf_section_data (symbol_section)->this_hdr.contents; | |
162 | else | |
163 | { | |
eea6121a AM |
164 | if (!bfd_malloc_and_get_section (input_bfd, symbol_section, |
165 | &contents)) | |
015551fc | 166 | { |
eea6121a AM |
167 | if (contents != NULL) |
168 | free (contents); | |
015551fc JR |
169 | return bfd_reloc_outofrange; |
170 | } | |
171 | } | |
172 | } | |
173 | #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800) | |
174 | start_ptr = contents + start; | |
175 | for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;) | |
176 | { | |
177 | for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);) | |
178 | ptr -= 2; | |
179 | ptr += 2; | |
61ff1804 | 180 | diff = (last_ptr - ptr) >> 1; |
015551fc JR |
181 | cum_diff += diff & 1; |
182 | cum_diff += diff; | |
183 | } | |
184 | /* Calculate the start / end values to load into rs / re minus four - | |
185 | so that will cancel out the four we would otherwise have to add to | |
186 | addr to get the value to subtract in order to get relative addressing. */ | |
187 | if (cum_diff >= 0) | |
188 | { | |
189 | start -= 4; | |
190 | end = (ptr + cum_diff * 2) - contents; | |
191 | } | |
192 | else | |
193 | { | |
194 | bfd_vma start0 = start - 4; | |
195 | ||
a0fc8ba1 | 196 | while (start0 && IS_PPI (contents + start0)) |
015551fc JR |
197 | start0 -= 2; |
198 | start0 = start - 2 - ((start - start0) & 2); | |
199 | start = start0 - cum_diff - 2; | |
200 | end = start0; | |
201 | } | |
202 | ||
6cdc0ccc AM |
203 | if (contents != NULL |
204 | && elf_section_data (symbol_section)->this_hdr.contents != contents) | |
205 | free (contents); | |
015551fc JR |
206 | |
207 | insn = bfd_get_16 (input_bfd, contents + addr); | |
208 | ||
209 | x = (insn & 0x200 ? end : start) - addr; | |
210 | if (input_section != symbol_section) | |
211 | x += ((symbol_section->output_section->vma + symbol_section->output_offset) | |
212 | - (input_section->output_section->vma | |
213 | + input_section->output_offset)); | |
214 | x >>= 1; | |
215 | if (x < -128 || x > 127) | |
216 | return bfd_reloc_overflow; | |
217 | ||
61ff1804 | 218 | x = (insn & ~0xff) | (x & 0xff); |
dc810e39 | 219 | bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr); |
015551fc JR |
220 | |
221 | return bfd_reloc_ok; | |
222 | } | |
223 | ||
224 | /* This function is used for normal relocs. This used to be like the COFF | |
252b5132 RH |
225 | function, and is almost certainly incorrect for other ELF targets. */ |
226 | ||
227 | static bfd_reloc_status_type | |
09fd220b KK |
228 | sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, |
229 | void *data, asection *input_section, bfd *output_bfd, | |
230 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
231 | { |
232 | unsigned long insn; | |
233 | bfd_vma sym_value; | |
234 | enum elf_sh_reloc_type r_type; | |
235 | bfd_vma addr = reloc_entry->address; | |
236 | bfd_byte *hit_data = addr + (bfd_byte *) data; | |
237 | ||
238 | r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; | |
239 | ||
240 | if (output_bfd != NULL) | |
241 | { | |
242 | /* Partial linking--do nothing. */ | |
243 | reloc_entry->address += input_section->output_offset; | |
244 | return bfd_reloc_ok; | |
245 | } | |
246 | ||
247 | /* Almost all relocs have to do with relaxing. If any work must be | |
248 | done for them, it has been done in sh_relax_section. */ | |
015551fc | 249 | if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0) |
252b5132 RH |
250 | return bfd_reloc_ok; |
251 | ||
252 | if (symbol_in != NULL | |
253 | && bfd_is_und_section (symbol_in->section)) | |
254 | return bfd_reloc_undefined; | |
255 | ||
cd21f5da | 256 | /* PR 17512: file: 9891ca98. */ |
6346d5ca AM |
257 | if (addr * bfd_octets_per_byte (abfd) + bfd_get_reloc_size (reloc_entry->howto) |
258 | > bfd_get_section_limit_octets (abfd, input_section)) | |
cd21f5da NC |
259 | return bfd_reloc_outofrange; |
260 | ||
252b5132 | 261 | if (bfd_is_com_section (symbol_in->section)) |
435b1e90 KH |
262 | sym_value = 0; |
263 | else | |
252b5132 RH |
264 | sym_value = (symbol_in->value + |
265 | symbol_in->section->output_section->vma + | |
266 | symbol_in->section->output_offset); | |
267 | ||
268 | switch (r_type) | |
269 | { | |
270 | case R_SH_DIR32: | |
271 | insn = bfd_get_32 (abfd, hit_data); | |
272 | insn += sym_value + reloc_entry->addend; | |
dc810e39 | 273 | bfd_put_32 (abfd, (bfd_vma) insn, hit_data); |
252b5132 RH |
274 | break; |
275 | case R_SH_IND12W: | |
276 | insn = bfd_get_16 (abfd, hit_data); | |
277 | sym_value += reloc_entry->addend; | |
278 | sym_value -= (input_section->output_section->vma | |
279 | + input_section->output_offset | |
280 | + addr | |
281 | + 4); | |
282 | sym_value += (insn & 0xfff) << 1; | |
283 | if (insn & 0x800) | |
284 | sym_value -= 0x1000; | |
285 | insn = (insn & 0xf000) | (sym_value & 0xfff); | |
dc810e39 | 286 | bfd_put_16 (abfd, (bfd_vma) insn, hit_data); |
252b5132 RH |
287 | if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000) |
288 | return bfd_reloc_overflow; | |
289 | break; | |
290 | default: | |
291 | abort (); | |
292 | break; | |
293 | } | |
294 | ||
295 | return bfd_reloc_ok; | |
296 | } | |
297 | ||
298 | /* This function is used for relocs which are only used for relaxing, | |
299 | which the linker should otherwise ignore. */ | |
300 | ||
301 | static bfd_reloc_status_type | |
09fd220b KK |
302 | sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
303 | asymbol *symbol ATTRIBUTE_UNUSED, | |
304 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
305 | bfd *output_bfd, | |
306 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
307 | { |
308 | if (output_bfd != NULL) | |
309 | reloc_entry->address += input_section->output_offset; | |
310 | return bfd_reloc_ok; | |
311 | } | |
312 | ||
313 | /* This structure is used to map BFD reloc codes to SH ELF relocs. */ | |
314 | ||
38b1a46c NC |
315 | struct elf_reloc_map |
316 | { | |
252b5132 RH |
317 | bfd_reloc_code_real_type bfd_reloc_val; |
318 | unsigned char elf_reloc_val; | |
319 | }; | |
320 | ||
321 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
322 | ||
38b1a46c NC |
323 | static const struct elf_reloc_map sh_reloc_map[] = |
324 | { | |
252b5132 RH |
325 | { BFD_RELOC_NONE, R_SH_NONE }, |
326 | { BFD_RELOC_32, R_SH_DIR32 }, | |
d38eb334 DD |
327 | { BFD_RELOC_16, R_SH_DIR16 }, |
328 | { BFD_RELOC_8, R_SH_DIR8 }, | |
252b5132 RH |
329 | { BFD_RELOC_CTOR, R_SH_DIR32 }, |
330 | { BFD_RELOC_32_PCREL, R_SH_REL32 }, | |
331 | { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN }, | |
332 | { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W }, | |
333 | { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ }, | |
334 | { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL }, | |
335 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
336 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
337 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
338 | { BFD_RELOC_SH_USES, R_SH_USES }, | |
339 | { BFD_RELOC_SH_COUNT, R_SH_COUNT }, | |
340 | { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, | |
341 | { BFD_RELOC_SH_CODE, R_SH_CODE }, | |
342 | { BFD_RELOC_SH_DATA, R_SH_DATA }, | |
343 | { BFD_RELOC_SH_LABEL, R_SH_LABEL }, | |
344 | { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, | |
345 | { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, | |
015551fc JR |
346 | { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START }, |
347 | { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END }, | |
3376eaf5 KK |
348 | { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 }, |
349 | { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 }, | |
350 | { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 }, | |
351 | { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 }, | |
352 | { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 }, | |
353 | { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 }, | |
354 | { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 }, | |
355 | { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 }, | |
37c644f2 AO |
356 | { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 }, |
357 | { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 }, | |
358 | { BFD_RELOC_SH_COPY, R_SH_COPY }, | |
359 | { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT }, | |
360 | { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT }, | |
361 | { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE }, | |
362 | { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF }, | |
363 | { BFD_RELOC_SH_GOTPC, R_SH_GOTPC }, | |
fbca6ad9 | 364 | { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 }, |
8e45593f NC |
365 | { BFD_RELOC_SH_GOT20, R_SH_GOT20 }, |
366 | { BFD_RELOC_SH_GOTOFF20, R_SH_GOTOFF20 }, | |
367 | { BFD_RELOC_SH_GOTFUNCDESC, R_SH_GOTFUNCDESC }, | |
368 | { BFD_RELOC_SH_GOTFUNCDESC20, R_SH_GOTFUNCDESC20 }, | |
369 | { BFD_RELOC_SH_GOTOFFFUNCDESC, R_SH_GOTOFFFUNCDESC }, | |
370 | { BFD_RELOC_SH_GOTOFFFUNCDESC20, R_SH_GOTOFFFUNCDESC20 }, | |
371 | { BFD_RELOC_SH_FUNCDESC, R_SH_FUNCDESC }, | |
252b5132 RH |
372 | }; |
373 | ||
374 | /* Given a BFD reloc code, return the howto structure for the | |
55e6e397 | 375 | corresponding SH ELF reloc. */ |
252b5132 RH |
376 | |
377 | static reloc_howto_type * | |
55e6e397 | 378 | sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
252b5132 RH |
379 | { |
380 | unsigned int i; | |
381 | ||
382 | for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
383 | { | |
384 | if (sh_reloc_map[i].bfd_reloc_val == code) | |
55e6e397 | 385 | return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val; |
252b5132 RH |
386 | } |
387 | ||
388 | return NULL; | |
389 | } | |
390 | ||
157090f7 AM |
391 | static reloc_howto_type * |
392 | sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name) | |
393 | { | |
394 | unsigned int i; | |
395 | ||
396 | if (vxworks_object_p (abfd)) | |
397 | { | |
398 | for (i = 0; | |
399 | i < (sizeof (sh_vxworks_howto_table) | |
400 | / sizeof (sh_vxworks_howto_table[0])); | |
401 | i++) | |
402 | if (sh_vxworks_howto_table[i].name != NULL | |
403 | && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0) | |
404 | return &sh_vxworks_howto_table[i]; | |
405 | } | |
406 | else | |
407 | { | |
408 | for (i = 0; | |
409 | i < (sizeof (sh_elf_howto_table) | |
410 | / sizeof (sh_elf_howto_table[0])); | |
411 | i++) | |
412 | if (sh_elf_howto_table[i].name != NULL | |
413 | && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0) | |
414 | return &sh_elf_howto_table[i]; | |
415 | } | |
416 | ||
417 | return NULL; | |
418 | } | |
419 | ||
252b5132 RH |
420 | /* Given an ELF reloc, fill in the howto field of a relent. */ |
421 | ||
f3185997 | 422 | static bfd_boolean |
55e6e397 | 423 | sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
252b5132 RH |
424 | { |
425 | unsigned int r; | |
426 | ||
427 | r = ELF32_R_TYPE (dst->r_info); | |
428 | ||
cd21f5da NC |
429 | if (r >= R_SH_max |
430 | || (r >= R_SH_FIRST_INVALID_RELOC && r <= R_SH_LAST_INVALID_RELOC) | |
431 | || (r >= R_SH_FIRST_INVALID_RELOC_2 && r <= R_SH_LAST_INVALID_RELOC_2) | |
432 | || (r >= R_SH_FIRST_INVALID_RELOC_3 && r <= R_SH_LAST_INVALID_RELOC_3) | |
433 | || (r >= R_SH_FIRST_INVALID_RELOC_4 && r <= R_SH_LAST_INVALID_RELOC_4) | |
434 | || (r >= R_SH_FIRST_INVALID_RELOC_5 && r <= R_SH_LAST_INVALID_RELOC_5) | |
435 | || (r >= R_SH_FIRST_INVALID_RELOC_6 && r <= R_SH_LAST_INVALID_RELOC_6)) | |
436 | { | |
695344c0 | 437 | /* xgettext:c-format */ |
0aa13fee | 438 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 439 | abfd, r); |
cd21f5da | 440 | bfd_set_error (bfd_error_bad_value); |
f3185997 | 441 | return FALSE; |
cd21f5da | 442 | } |
252b5132 | 443 | |
55e6e397 | 444 | cache_ptr->howto = get_howto_table (abfd) + r; |
f3185997 | 445 | return TRUE; |
252b5132 RH |
446 | } |
447 | \f | |
448 | /* This function handles relaxing for SH ELF. See the corresponding | |
449 | function in coff-sh.c for a description of what this does. FIXME: | |
450 | There is a lot of duplication here between this code and the COFF | |
451 | specific code. The format of relocs and symbols is wound deeply | |
452 | into this code, but it would still be better if the duplication | |
453 | could be eliminated somehow. Note in particular that although both | |
454 | functions use symbols like R_SH_CODE, those symbols have different | |
455 | values; in coff-sh.c they come from include/coff/sh.h, whereas here | |
456 | they come from enum elf_sh_reloc_type in include/elf/sh.h. */ | |
457 | ||
b34976b6 | 458 | static bfd_boolean |
09fd220b KK |
459 | sh_elf_relax_section (bfd *abfd, asection *sec, |
460 | struct bfd_link_info *link_info, bfd_boolean *again) | |
252b5132 RH |
461 | { |
462 | Elf_Internal_Shdr *symtab_hdr; | |
463 | Elf_Internal_Rela *internal_relocs; | |
b34976b6 | 464 | bfd_boolean have_code; |
252b5132 RH |
465 | Elf_Internal_Rela *irel, *irelend; |
466 | bfd_byte *contents = NULL; | |
6cdc0ccc | 467 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 468 | |
b34976b6 | 469 | *again = FALSE; |
252b5132 | 470 | |
0e1862bb | 471 | if (bfd_link_relocatable (link_info) |
252b5132 RH |
472 | || (sec->flags & SEC_RELOC) == 0 |
473 | || sec->reloc_count == 0) | |
b34976b6 | 474 | return TRUE; |
252b5132 | 475 | |
0ffa91dd | 476 | symtab_hdr = &elf_symtab_hdr (abfd); |
252b5132 | 477 | |
45d6a902 | 478 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 479 | (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, |
252b5132 RH |
480 | link_info->keep_memory)); |
481 | if (internal_relocs == NULL) | |
482 | goto error_return; | |
252b5132 | 483 | |
b34976b6 | 484 | have_code = FALSE; |
252b5132 RH |
485 | |
486 | irelend = internal_relocs + sec->reloc_count; | |
487 | for (irel = internal_relocs; irel < irelend; irel++) | |
488 | { | |
489 | bfd_vma laddr, paddr, symval; | |
490 | unsigned short insn; | |
491 | Elf_Internal_Rela *irelfn, *irelscan, *irelcount; | |
492 | bfd_signed_vma foff; | |
493 | ||
494 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE) | |
b34976b6 | 495 | have_code = TRUE; |
252b5132 RH |
496 | |
497 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES) | |
498 | continue; | |
499 | ||
500 | /* Get the section contents. */ | |
501 | if (contents == NULL) | |
502 | { | |
503 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
504 | contents = elf_section_data (sec)->this_hdr.contents; | |
505 | else | |
506 | { | |
eea6121a | 507 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
508 | goto error_return; |
509 | } | |
510 | } | |
511 | ||
512 | /* The r_addend field of the R_SH_USES reloc will point us to | |
067653c5 AM |
513 | the register load. The 4 is because the r_addend field is |
514 | computed as though it were a jump offset, which are based | |
515 | from 4 bytes after the jump instruction. */ | |
252b5132 | 516 | laddr = irel->r_offset + 4 + irel->r_addend; |
eea6121a | 517 | if (laddr >= sec->size) |
252b5132 | 518 | { |
695344c0 | 519 | /* xgettext:c-format */ |
2dcf00ce AM |
520 | _bfd_error_handler |
521 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES offset"), | |
522 | abfd, (uint64_t) irel->r_offset); | |
252b5132 RH |
523 | continue; |
524 | } | |
525 | insn = bfd_get_16 (abfd, contents + laddr); | |
526 | ||
527 | /* If the instruction is not mov.l NN,rN, we don't know what to | |
067653c5 | 528 | do. */ |
252b5132 RH |
529 | if ((insn & 0xf000) != 0xd000) |
530 | { | |
4eca0228 | 531 | _bfd_error_handler |
695344c0 | 532 | /* xgettext:c-format */ |
2dcf00ce AM |
533 | (_("%pB: %#" PRIx64 ": warning: " |
534 | "R_SH_USES points to unrecognized insn 0x%x"), | |
535 | abfd, (uint64_t) irel->r_offset, insn); | |
252b5132 RH |
536 | continue; |
537 | } | |
538 | ||
539 | /* Get the address from which the register is being loaded. The | |
99e4ae17 AJ |
540 | displacement in the mov.l instruction is quadrupled. It is a |
541 | displacement from four bytes after the movl instruction, but, | |
542 | before adding in the PC address, two least significant bits | |
543 | of the PC are cleared. We assume that the section is aligned | |
544 | on a four byte boundary. */ | |
252b5132 RH |
545 | paddr = insn & 0xff; |
546 | paddr *= 4; | |
dc810e39 | 547 | paddr += (laddr + 4) &~ (bfd_vma) 3; |
eea6121a | 548 | if (paddr >= sec->size) |
252b5132 | 549 | { |
4eca0228 | 550 | _bfd_error_handler |
695344c0 | 551 | /* xgettext:c-format */ |
2dcf00ce AM |
552 | (_("%pB: %#" PRIx64 ": warning: bad R_SH_USES load offset"), |
553 | abfd, (uint64_t) irel->r_offset); | |
252b5132 RH |
554 | continue; |
555 | } | |
556 | ||
557 | /* Get the reloc for the address from which the register is | |
067653c5 AM |
558 | being loaded. This reloc will tell us which function is |
559 | actually being called. */ | |
252b5132 RH |
560 | for (irelfn = internal_relocs; irelfn < irelend; irelfn++) |
561 | if (irelfn->r_offset == paddr | |
562 | && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32) | |
563 | break; | |
564 | if (irelfn >= irelend) | |
565 | { | |
4eca0228 | 566 | _bfd_error_handler |
695344c0 | 567 | /* xgettext:c-format */ |
2dcf00ce AM |
568 | (_("%pB: %#" PRIx64 ": warning: could not find expected reloc"), |
569 | abfd, (uint64_t) paddr); | |
252b5132 RH |
570 | continue; |
571 | } | |
572 | ||
573 | /* Read this BFD's symbols if we haven't done so already. */ | |
6cdc0ccc | 574 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
252b5132 | 575 | { |
6cdc0ccc AM |
576 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
577 | if (isymbuf == NULL) | |
578 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
579 | symtab_hdr->sh_info, 0, | |
580 | NULL, NULL, NULL); | |
581 | if (isymbuf == NULL) | |
582 | goto error_return; | |
252b5132 RH |
583 | } |
584 | ||
585 | /* Get the value of the symbol referred to by the reloc. */ | |
586 | if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) | |
587 | { | |
9ad5cbcf | 588 | /* A local symbol. */ |
6cdc0ccc | 589 | Elf_Internal_Sym *isym; |
252b5132 | 590 | |
6cdc0ccc AM |
591 | isym = isymbuf + ELF32_R_SYM (irelfn->r_info); |
592 | if (isym->st_shndx | |
d426c6b0 | 593 | != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec)) |
252b5132 | 594 | { |
4eca0228 | 595 | _bfd_error_handler |
695344c0 | 596 | /* xgettext:c-format */ |
2dcf00ce AM |
597 | (_("%pB: %#" PRIx64 ": warning: symbol in unexpected section"), |
598 | abfd, (uint64_t) paddr); | |
252b5132 RH |
599 | continue; |
600 | } | |
601 | ||
6cdc0ccc | 602 | symval = (isym->st_value |
252b5132 RH |
603 | + sec->output_section->vma |
604 | + sec->output_offset); | |
605 | } | |
606 | else | |
607 | { | |
608 | unsigned long indx; | |
609 | struct elf_link_hash_entry *h; | |
610 | ||
611 | indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info; | |
612 | h = elf_sym_hashes (abfd)[indx]; | |
613 | BFD_ASSERT (h != NULL); | |
614 | if (h->root.type != bfd_link_hash_defined | |
615 | && h->root.type != bfd_link_hash_defweak) | |
616 | { | |
617 | /* This appears to be a reference to an undefined | |
067653c5 AM |
618 | symbol. Just ignore it--it will be caught by the |
619 | regular reloc processing. */ | |
252b5132 RH |
620 | continue; |
621 | } | |
622 | ||
623 | symval = (h->root.u.def.value | |
624 | + h->root.u.def.section->output_section->vma | |
625 | + h->root.u.def.section->output_offset); | |
626 | } | |
627 | ||
55e6e397 RS |
628 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
629 | symval += bfd_get_32 (abfd, contents + paddr); | |
630 | else | |
631 | symval += irelfn->r_addend; | |
252b5132 RH |
632 | |
633 | /* See if this function call can be shortened. */ | |
634 | foff = (symval | |
635 | - (irel->r_offset | |
636 | + sec->output_section->vma | |
637 | + sec->output_offset | |
638 | + 4)); | |
f725025b DD |
639 | /* A branch to an address beyond ours might be increased by an |
640 | .align that doesn't move when bytes behind us are deleted. | |
641 | So, we add some slop in this calculation to allow for | |
642 | that. */ | |
643 | if (foff < -0x1000 || foff >= 0x1000 - 8) | |
252b5132 RH |
644 | { |
645 | /* After all that work, we can't shorten this function call. */ | |
646 | continue; | |
647 | } | |
648 | ||
649 | /* Shorten the function call. */ | |
650 | ||
651 | /* For simplicity of coding, we are going to modify the section | |
652 | contents, the section relocs, and the BFD symbol table. We | |
653 | must tell the rest of the code not to free up this | |
654 | information. It would be possible to instead create a table | |
655 | of changes which have to be made, as is done in coff-mips.c; | |
656 | that would be more work, but would require less memory when | |
657 | the linker is run. */ | |
658 | ||
659 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 660 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 661 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 | 662 | |
8c784016 | 663 | /* Replace the jmp/jsr with a bra/bsr. */ |
252b5132 RH |
664 | |
665 | /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and | |
8c784016 | 666 | replace the jmp/jsr with a bra/bsr. */ |
252b5132 | 667 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W); |
bdfaef52 JR |
668 | /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) |
669 | here, but that only checks if the symbol is an external symbol, | |
670 | not if the symbol is in a different section. Besides, we need | |
671 | a consistent meaning for the relocation, so we just assume here that | |
672 | the value of the symbol is not available. */ | |
0e71e495 BE |
673 | |
674 | /* We can't fully resolve this yet, because the external | |
675 | symbol value may be changed by future relaxing. We let | |
676 | the final link phase handle it. */ | |
8c784016 KK |
677 | if (bfd_get_16 (abfd, contents + irel->r_offset) & 0x0020) |
678 | bfd_put_16 (abfd, (bfd_vma) 0xa000, contents + irel->r_offset); | |
679 | else | |
680 | bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset); | |
0e71e495 | 681 | |
bdfaef52 | 682 | irel->r_addend = -4; |
252b5132 | 683 | |
f725025b DD |
684 | /* When we calculated the symbol "value" we had an offset in the |
685 | DIR32's word in memory (we read and add it above). However, | |
686 | the jsr we create does NOT have this offset encoded, so we | |
687 | have to add it to the addend to preserve it. */ | |
688 | irel->r_addend += bfd_get_32 (abfd, contents + paddr); | |
689 | ||
252b5132 | 690 | /* See if there is another R_SH_USES reloc referring to the same |
067653c5 | 691 | register load. */ |
252b5132 RH |
692 | for (irelscan = internal_relocs; irelscan < irelend; irelscan++) |
693 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES | |
694 | && laddr == irelscan->r_offset + 4 + irelscan->r_addend) | |
695 | break; | |
696 | if (irelscan < irelend) | |
697 | { | |
698 | /* Some other function call depends upon this register load, | |
699 | and we have not yet converted that function call. | |
700 | Indeed, we may never be able to convert it. There is | |
701 | nothing else we can do at this point. */ | |
702 | continue; | |
703 | } | |
704 | ||
705 | /* Look for a R_SH_COUNT reloc on the location where the | |
067653c5 AM |
706 | function address is stored. Do this before deleting any |
707 | bytes, to avoid confusion about the address. */ | |
252b5132 RH |
708 | for (irelcount = internal_relocs; irelcount < irelend; irelcount++) |
709 | if (irelcount->r_offset == paddr | |
710 | && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT) | |
711 | break; | |
712 | ||
713 | /* Delete the register load. */ | |
714 | if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2)) | |
715 | goto error_return; | |
716 | ||
717 | /* That will change things, so, just in case it permits some | |
067653c5 AM |
718 | other function call to come within range, we should relax |
719 | again. Note that this is not required, and it may be slow. */ | |
b34976b6 | 720 | *again = TRUE; |
252b5132 RH |
721 | |
722 | /* Now check whether we got a COUNT reloc. */ | |
723 | if (irelcount >= irelend) | |
724 | { | |
4eca0228 | 725 | _bfd_error_handler |
695344c0 | 726 | /* xgettext:c-format */ |
2dcf00ce AM |
727 | (_("%pB: %#" PRIx64 ": warning: " |
728 | "could not find expected COUNT reloc"), | |
729 | abfd, (uint64_t) paddr); | |
252b5132 RH |
730 | continue; |
731 | } | |
732 | ||
733 | /* The number of uses is stored in the r_addend field. We've | |
067653c5 | 734 | just deleted one. */ |
252b5132 RH |
735 | if (irelcount->r_addend == 0) |
736 | { | |
695344c0 | 737 | /* xgettext:c-format */ |
2dcf00ce AM |
738 | _bfd_error_handler (_("%pB: %#" PRIx64 ": warning: bad count"), |
739 | abfd, (uint64_t) paddr); | |
252b5132 RH |
740 | continue; |
741 | } | |
742 | ||
743 | --irelcount->r_addend; | |
744 | ||
745 | /* If there are no more uses, we can delete the address. Reload | |
067653c5 AM |
746 | the address from irelfn, in case it was changed by the |
747 | previous call to sh_elf_relax_delete_bytes. */ | |
252b5132 RH |
748 | if (irelcount->r_addend == 0) |
749 | { | |
750 | if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4)) | |
751 | goto error_return; | |
752 | } | |
753 | ||
754 | /* We've done all we can with that function call. */ | |
755 | } | |
756 | ||
757 | /* Look for load and store instructions that we can align on four | |
758 | byte boundaries. */ | |
bdfaef52 JR |
759 | if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4 |
760 | && have_code) | |
252b5132 | 761 | { |
b34976b6 | 762 | bfd_boolean swapped; |
252b5132 RH |
763 | |
764 | /* Get the section contents. */ | |
765 | if (contents == NULL) | |
766 | { | |
767 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
768 | contents = elf_section_data (sec)->this_hdr.contents; | |
769 | else | |
770 | { | |
eea6121a | 771 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
772 | goto error_return; |
773 | } | |
774 | } | |
775 | ||
776 | if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents, | |
777 | &swapped)) | |
778 | goto error_return; | |
779 | ||
780 | if (swapped) | |
781 | { | |
782 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 783 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 784 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
785 | } |
786 | } | |
787 | ||
6cdc0ccc AM |
788 | if (isymbuf != NULL |
789 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
790 | { |
791 | if (! link_info->keep_memory) | |
6cdc0ccc | 792 | free (isymbuf); |
252b5132 RH |
793 | else |
794 | { | |
6cdc0ccc AM |
795 | /* Cache the symbols for elf_link_input_bfd. */ |
796 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 797 | } |
9ad5cbcf AM |
798 | } |
799 | ||
6cdc0ccc AM |
800 | if (contents != NULL |
801 | && elf_section_data (sec)->this_hdr.contents != contents) | |
252b5132 RH |
802 | { |
803 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
804 | free (contents); |
805 | else | |
252b5132 | 806 | { |
6cdc0ccc AM |
807 | /* Cache the section contents for elf_link_input_bfd. */ |
808 | elf_section_data (sec)->this_hdr.contents = contents; | |
252b5132 | 809 | } |
252b5132 RH |
810 | } |
811 | ||
6cdc0ccc AM |
812 | if (internal_relocs != NULL |
813 | && elf_section_data (sec)->relocs != internal_relocs) | |
814 | free (internal_relocs); | |
815 | ||
b34976b6 | 816 | return TRUE; |
252b5132 RH |
817 | |
818 | error_return: | |
6cdc0ccc AM |
819 | if (isymbuf != NULL |
820 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
821 | free (isymbuf); | |
822 | if (contents != NULL | |
823 | && elf_section_data (sec)->this_hdr.contents != contents) | |
824 | free (contents); | |
825 | if (internal_relocs != NULL | |
826 | && elf_section_data (sec)->relocs != internal_relocs) | |
827 | free (internal_relocs); | |
9ad5cbcf | 828 | |
b34976b6 | 829 | return FALSE; |
252b5132 RH |
830 | } |
831 | ||
832 | /* Delete some bytes from a section while relaxing. FIXME: There is a | |
833 | lot of duplication between this function and sh_relax_delete_bytes | |
834 | in coff-sh.c. */ | |
835 | ||
b34976b6 | 836 | static bfd_boolean |
09fd220b KK |
837 | sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, |
838 | int count) | |
252b5132 RH |
839 | { |
840 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 841 | unsigned int sec_shndx; |
252b5132 RH |
842 | bfd_byte *contents; |
843 | Elf_Internal_Rela *irel, *irelend; | |
844 | Elf_Internal_Rela *irelalign; | |
845 | bfd_vma toaddr; | |
6cdc0ccc | 846 | Elf_Internal_Sym *isymbuf, *isym, *isymend; |
9ad5cbcf AM |
847 | struct elf_link_hash_entry **sym_hashes; |
848 | struct elf_link_hash_entry **end_hashes; | |
849 | unsigned int symcount; | |
252b5132 RH |
850 | asection *o; |
851 | ||
0ffa91dd | 852 | symtab_hdr = &elf_symtab_hdr (abfd); |
6cdc0ccc | 853 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
9ad5cbcf AM |
854 | |
855 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 RH |
856 | |
857 | contents = elf_section_data (sec)->this_hdr.contents; | |
858 | ||
de194d85 | 859 | /* The deletion must stop at the next ALIGN reloc for an alignment |
252b5132 RH |
860 | power larger than the number of bytes we are deleting. */ |
861 | ||
862 | irelalign = NULL; | |
eea6121a | 863 | toaddr = sec->size; |
252b5132 RH |
864 | |
865 | irel = elf_section_data (sec)->relocs; | |
866 | irelend = irel + sec->reloc_count; | |
867 | for (; irel < irelend; irel++) | |
868 | { | |
869 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
870 | && irel->r_offset > addr | |
871 | && count < (1 << irel->r_addend)) | |
872 | { | |
873 | irelalign = irel; | |
874 | toaddr = irel->r_offset; | |
875 | break; | |
876 | } | |
877 | } | |
878 | ||
879 | /* Actually delete the bytes. */ | |
dc810e39 AM |
880 | memmove (contents + addr, contents + addr + count, |
881 | (size_t) (toaddr - addr - count)); | |
252b5132 | 882 | if (irelalign == NULL) |
eea6121a | 883 | sec->size -= count; |
252b5132 RH |
884 | else |
885 | { | |
886 | int i; | |
887 | ||
888 | #define NOP_OPCODE (0x0009) | |
889 | ||
890 | BFD_ASSERT ((count & 1) == 0); | |
891 | for (i = 0; i < count; i += 2) | |
dc810e39 | 892 | bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i); |
252b5132 RH |
893 | } |
894 | ||
895 | /* Adjust all the relocs. */ | |
896 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
897 | { | |
898 | bfd_vma nraddr, stop; | |
899 | bfd_vma start = 0; | |
900 | int insn = 0; | |
252b5132 RH |
901 | int off, adjust, oinsn; |
902 | bfd_signed_vma voff = 0; | |
b34976b6 | 903 | bfd_boolean overflow; |
252b5132 RH |
904 | |
905 | /* Get the new reloc address. */ | |
906 | nraddr = irel->r_offset; | |
907 | if ((irel->r_offset > addr | |
908 | && irel->r_offset < toaddr) | |
909 | || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
910 | && irel->r_offset == toaddr)) | |
911 | nraddr -= count; | |
912 | ||
913 | /* See if this reloc was for the bytes we have deleted, in which | |
914 | case we no longer care about it. Don't delete relocs which | |
915 | represent addresses, though. */ | |
916 | if (irel->r_offset >= addr | |
917 | && irel->r_offset < addr + count | |
918 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN | |
919 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE | |
920 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA | |
921 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL) | |
922 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
923 | (int) R_SH_NONE); | |
924 | ||
925 | /* If this is a PC relative reloc, see if the range it covers | |
067653c5 | 926 | includes the bytes we have deleted. */ |
252b5132 RH |
927 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
928 | { | |
929 | default: | |
930 | break; | |
931 | ||
932 | case R_SH_DIR8WPN: | |
933 | case R_SH_IND12W: | |
934 | case R_SH_DIR8WPZ: | |
935 | case R_SH_DIR8WPL: | |
936 | start = irel->r_offset; | |
937 | insn = bfd_get_16 (abfd, contents + nraddr); | |
938 | break; | |
939 | } | |
940 | ||
941 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
942 | { | |
943 | default: | |
944 | start = stop = addr; | |
945 | break; | |
946 | ||
947 | case R_SH_DIR32: | |
948 | /* If this reloc is against a symbol defined in this | |
067653c5 AM |
949 | section, and the symbol will not be adjusted below, we |
950 | must check the addend to see it will put the value in | |
951 | range to be adjusted, and hence must be changed. */ | |
252b5132 RH |
952 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
953 | { | |
6cdc0ccc AM |
954 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
955 | if (isym->st_shndx == sec_shndx | |
956 | && (isym->st_value <= addr | |
957 | || isym->st_value >= toaddr)) | |
252b5132 RH |
958 | { |
959 | bfd_vma val; | |
960 | ||
55e6e397 RS |
961 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
962 | { | |
963 | val = bfd_get_32 (abfd, contents + nraddr); | |
964 | val += isym->st_value; | |
965 | if (val > addr && val < toaddr) | |
966 | bfd_put_32 (abfd, val - count, contents + nraddr); | |
967 | } | |
968 | else | |
969 | { | |
970 | val = isym->st_value + irel->r_addend; | |
971 | if (val > addr && val < toaddr) | |
972 | irel->r_addend -= count; | |
973 | } | |
252b5132 RH |
974 | } |
975 | } | |
976 | start = stop = addr; | |
977 | break; | |
978 | ||
979 | case R_SH_DIR8WPN: | |
980 | off = insn & 0xff; | |
981 | if (off & 0x80) | |
982 | off -= 0x100; | |
983 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
984 | break; | |
985 | ||
986 | case R_SH_IND12W: | |
bdfaef52 JR |
987 | off = insn & 0xfff; |
988 | if (! off) | |
989 | { | |
990 | /* This has been made by previous relaxation. Since the | |
991 | relocation will be against an external symbol, the | |
992 | final relocation will just do the right thing. */ | |
993 | start = stop = addr; | |
994 | } | |
252b5132 RH |
995 | else |
996 | { | |
252b5132 RH |
997 | if (off & 0x800) |
998 | off -= 0x1000; | |
999 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
bdfaef52 JR |
1000 | |
1001 | /* The addend will be against the section symbol, thus | |
1002 | for adjusting the addend, the relevant start is the | |
1003 | start of the section. | |
4cc11e76 | 1004 | N.B. If we want to abandon in-place changes here and |
bdfaef52 JR |
1005 | test directly using symbol + addend, we have to take into |
1006 | account that the addend has already been adjusted by -4. */ | |
1007 | if (stop > addr && stop < toaddr) | |
1008 | irel->r_addend -= count; | |
252b5132 RH |
1009 | } |
1010 | break; | |
1011 | ||
1012 | case R_SH_DIR8WPZ: | |
1013 | off = insn & 0xff; | |
1014 | stop = start + 4 + off * 2; | |
1015 | break; | |
1016 | ||
1017 | case R_SH_DIR8WPL: | |
1018 | off = insn & 0xff; | |
435b1e90 | 1019 | stop = (start & ~(bfd_vma) 3) + 4 + off * 4; |
252b5132 RH |
1020 | break; |
1021 | ||
1022 | case R_SH_SWITCH8: | |
1023 | case R_SH_SWITCH16: | |
1024 | case R_SH_SWITCH32: | |
1025 | /* These relocs types represent | |
1026 | .word L2-L1 | |
06e1ba78 | 1027 | The r_addend field holds the difference between the reloc |
252b5132 RH |
1028 | address and L1. That is the start of the reloc, and |
1029 | adding in the contents gives us the top. We must adjust | |
06e1ba78 JR |
1030 | both the r_offset field and the section contents. |
1031 | N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset, | |
1032 | and the elf bfd r_offset is called r_vaddr. */ | |
252b5132 | 1033 | |
06e1ba78 JR |
1034 | stop = irel->r_offset; |
1035 | start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend); | |
252b5132 RH |
1036 | |
1037 | if (start > addr | |
1038 | && start < toaddr | |
1039 | && (stop <= addr || stop >= toaddr)) | |
1040 | irel->r_addend += count; | |
1041 | else if (stop > addr | |
1042 | && stop < toaddr | |
1043 | && (start <= addr || start >= toaddr)) | |
1044 | irel->r_addend -= count; | |
1045 | ||
252b5132 RH |
1046 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16) |
1047 | voff = bfd_get_signed_16 (abfd, contents + nraddr); | |
1048 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8) | |
1049 | voff = bfd_get_8 (abfd, contents + nraddr); | |
1050 | else | |
1051 | voff = bfd_get_signed_32 (abfd, contents + nraddr); | |
1052 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1053 | ||
1054 | break; | |
1055 | ||
1056 | case R_SH_USES: | |
1057 | start = irel->r_offset; | |
1058 | stop = (bfd_vma) ((bfd_signed_vma) start | |
1059 | + (long) irel->r_addend | |
1060 | + 4); | |
1061 | break; | |
1062 | } | |
1063 | ||
1064 | if (start > addr | |
1065 | && start < toaddr | |
1066 | && (stop <= addr || stop >= toaddr)) | |
1067 | adjust = count; | |
1068 | else if (stop > addr | |
1069 | && stop < toaddr | |
1070 | && (start <= addr || start >= toaddr)) | |
1071 | adjust = - count; | |
1072 | else | |
1073 | adjust = 0; | |
1074 | ||
1075 | if (adjust != 0) | |
1076 | { | |
1077 | oinsn = insn; | |
b34976b6 | 1078 | overflow = FALSE; |
252b5132 RH |
1079 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
1080 | { | |
1081 | default: | |
1082 | abort (); | |
1083 | break; | |
1084 | ||
1085 | case R_SH_DIR8WPN: | |
1086 | case R_SH_DIR8WPZ: | |
1087 | insn += adjust / 2; | |
1088 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1089 | overflow = TRUE; |
dc810e39 | 1090 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1091 | break; |
1092 | ||
1093 | case R_SH_IND12W: | |
1094 | insn += adjust / 2; | |
1095 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1096 | overflow = TRUE; |
dc810e39 | 1097 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1098 | break; |
1099 | ||
1100 | case R_SH_DIR8WPL: | |
1101 | BFD_ASSERT (adjust == count || count >= 4); | |
1102 | if (count >= 4) | |
1103 | insn += adjust / 4; | |
1104 | else | |
1105 | { | |
1106 | if ((irel->r_offset & 3) == 0) | |
1107 | ++insn; | |
1108 | } | |
1109 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1110 | overflow = TRUE; |
dc810e39 | 1111 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1112 | break; |
1113 | ||
851cde10 JR |
1114 | case R_SH_SWITCH8: |
1115 | voff += adjust; | |
1116 | if (voff < 0 || voff >= 0xff) | |
b34976b6 | 1117 | overflow = TRUE; |
851cde10 JR |
1118 | bfd_put_8 (abfd, voff, contents + nraddr); |
1119 | break; | |
1120 | ||
252b5132 RH |
1121 | case R_SH_SWITCH16: |
1122 | voff += adjust; | |
1123 | if (voff < - 0x8000 || voff >= 0x8000) | |
b34976b6 | 1124 | overflow = TRUE; |
dc810e39 | 1125 | bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1126 | break; |
1127 | ||
1128 | case R_SH_SWITCH32: | |
1129 | voff += adjust; | |
dc810e39 | 1130 | bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1131 | break; |
1132 | ||
1133 | case R_SH_USES: | |
1134 | irel->r_addend += adjust; | |
1135 | break; | |
1136 | } | |
1137 | ||
1138 | if (overflow) | |
1139 | { | |
4eca0228 | 1140 | _bfd_error_handler |
695344c0 | 1141 | /* xgettext:c-format */ |
2dcf00ce AM |
1142 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), |
1143 | abfd, (uint64_t) irel->r_offset); | |
252b5132 | 1144 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1145 | return FALSE; |
252b5132 RH |
1146 | } |
1147 | } | |
1148 | ||
1149 | irel->r_offset = nraddr; | |
1150 | } | |
1151 | ||
1152 | /* Look through all the other sections. If there contain any IMM32 | |
1153 | relocs against internal symbols which we are not going to adjust | |
1154 | below, we may need to adjust the addends. */ | |
1155 | for (o = abfd->sections; o != NULL; o = o->next) | |
1156 | { | |
1157 | Elf_Internal_Rela *internal_relocs; | |
1158 | Elf_Internal_Rela *irelscan, *irelscanend; | |
1159 | bfd_byte *ocontents; | |
1160 | ||
1161 | if (o == sec | |
1162 | || (o->flags & SEC_RELOC) == 0 | |
1163 | || o->reloc_count == 0) | |
1164 | continue; | |
1165 | ||
1166 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
b34976b6 | 1167 | FALSE, we should free them, if we are permitted to, when we |
067653c5 | 1168 | leave sh_coff_relax_section. */ |
45d6a902 | 1169 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 1170 | (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE)); |
252b5132 | 1171 | if (internal_relocs == NULL) |
b34976b6 | 1172 | return FALSE; |
252b5132 RH |
1173 | |
1174 | ocontents = NULL; | |
1175 | irelscanend = internal_relocs + o->reloc_count; | |
1176 | for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) | |
1177 | { | |
084aa3aa JR |
1178 | /* Dwarf line numbers use R_SH_SWITCH32 relocs. */ |
1179 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32) | |
1180 | { | |
1181 | bfd_vma start, stop; | |
1182 | bfd_signed_vma voff; | |
1183 | ||
1184 | if (ocontents == NULL) | |
1185 | { | |
1186 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1187 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1188 | else | |
1189 | { | |
1190 | /* We always cache the section contents. | |
b34976b6 | 1191 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1192 | should free them, if we are permitted to, |
1193 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1194 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1195 | { | |
1196 | if (ocontents != NULL) | |
1197 | free (ocontents); | |
1198 | return FALSE; | |
1199 | } | |
1200 | ||
084aa3aa JR |
1201 | elf_section_data (o)->this_hdr.contents = ocontents; |
1202 | } | |
1203 | } | |
1204 | ||
1205 | stop = irelscan->r_offset; | |
1206 | start | |
1207 | = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend); | |
1208 | ||
1209 | /* STOP is in a different section, so it won't change. */ | |
1210 | if (start > addr && start < toaddr) | |
1211 | irelscan->r_addend += count; | |
1212 | ||
1213 | voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset); | |
1214 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1215 | ||
1216 | if (start > addr | |
1217 | && start < toaddr | |
1218 | && (stop <= addr || stop >= toaddr)) | |
dc810e39 | 1219 | bfd_put_signed_32 (abfd, (bfd_vma) voff + count, |
084aa3aa JR |
1220 | ocontents + irelscan->r_offset); |
1221 | else if (stop > addr | |
1222 | && stop < toaddr | |
1223 | && (start <= addr || start >= toaddr)) | |
dc810e39 | 1224 | bfd_put_signed_32 (abfd, (bfd_vma) voff - count, |
084aa3aa JR |
1225 | ocontents + irelscan->r_offset); |
1226 | } | |
1227 | ||
252b5132 RH |
1228 | if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32) |
1229 | continue; | |
1230 | ||
1231 | if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info) | |
1232 | continue; | |
1233 | ||
252b5132 | 1234 | |
6cdc0ccc AM |
1235 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); |
1236 | if (isym->st_shndx == sec_shndx | |
1237 | && (isym->st_value <= addr | |
1238 | || isym->st_value >= toaddr)) | |
252b5132 RH |
1239 | { |
1240 | bfd_vma val; | |
1241 | ||
1242 | if (ocontents == NULL) | |
1243 | { | |
1244 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1245 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1246 | else | |
1247 | { | |
1248 | /* We always cache the section contents. | |
b34976b6 | 1249 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1250 | should free them, if we are permitted to, |
1251 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1252 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1253 | { | |
1254 | if (ocontents != NULL) | |
1255 | free (ocontents); | |
1256 | return FALSE; | |
1257 | } | |
1258 | ||
252b5132 RH |
1259 | elf_section_data (o)->this_hdr.contents = ocontents; |
1260 | } | |
1261 | } | |
1262 | ||
1263 | val = bfd_get_32 (abfd, ocontents + irelscan->r_offset); | |
6cdc0ccc | 1264 | val += isym->st_value; |
252b5132 RH |
1265 | if (val > addr && val < toaddr) |
1266 | bfd_put_32 (abfd, val - count, | |
1267 | ocontents + irelscan->r_offset); | |
1268 | } | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1273 | isymend = isymbuf + symtab_hdr->sh_info; |
1274 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 1275 | { |
6cdc0ccc AM |
1276 | if (isym->st_shndx == sec_shndx |
1277 | && isym->st_value > addr | |
1278 | && isym->st_value < toaddr) | |
1279 | isym->st_value -= count; | |
252b5132 RH |
1280 | } |
1281 | ||
1282 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1283 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1284 | - symtab_hdr->sh_info); | |
1285 | sym_hashes = elf_sym_hashes (abfd); | |
1286 | end_hashes = sym_hashes + symcount; | |
1287 | for (; sym_hashes < end_hashes; sym_hashes++) | |
252b5132 | 1288 | { |
9ad5cbcf AM |
1289 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1290 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1291 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1292 | && sym_hash->root.u.def.section == sec | |
1293 | && sym_hash->root.u.def.value > addr | |
1294 | && sym_hash->root.u.def.value < toaddr) | |
252b5132 | 1295 | { |
9ad5cbcf | 1296 | sym_hash->root.u.def.value -= count; |
252b5132 RH |
1297 | } |
1298 | } | |
1299 | ||
1300 | /* See if we can move the ALIGN reloc forward. We have adjusted | |
1301 | r_offset for it already. */ | |
1302 | if (irelalign != NULL) | |
1303 | { | |
1304 | bfd_vma alignto, alignaddr; | |
1305 | ||
1306 | alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); | |
1307 | alignaddr = BFD_ALIGN (irelalign->r_offset, | |
1308 | 1 << irelalign->r_addend); | |
1309 | if (alignto != alignaddr) | |
1310 | { | |
1311 | /* Tail recursion. */ | |
1312 | return sh_elf_relax_delete_bytes (abfd, sec, alignaddr, | |
dc810e39 | 1313 | (int) (alignto - alignaddr)); |
252b5132 RH |
1314 | } |
1315 | } | |
1316 | ||
b34976b6 | 1317 | return TRUE; |
252b5132 RH |
1318 | } |
1319 | ||
1320 | /* Look for loads and stores which we can align to four byte | |
1321 | boundaries. This is like sh_align_loads in coff-sh.c. */ | |
1322 | ||
b34976b6 | 1323 | static bfd_boolean |
09fd220b KK |
1324 | sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, |
1325 | Elf_Internal_Rela *internal_relocs, | |
1326 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
1327 | bfd_boolean *pswapped) | |
252b5132 RH |
1328 | { |
1329 | Elf_Internal_Rela *irel, *irelend; | |
1330 | bfd_vma *labels = NULL; | |
1331 | bfd_vma *label, *label_end; | |
dc810e39 | 1332 | bfd_size_type amt; |
252b5132 | 1333 | |
b34976b6 | 1334 | *pswapped = FALSE; |
252b5132 RH |
1335 | |
1336 | irelend = internal_relocs + sec->reloc_count; | |
1337 | ||
1338 | /* Get all the addresses with labels on them. */ | |
dc810e39 AM |
1339 | amt = sec->reloc_count; |
1340 | amt *= sizeof (bfd_vma); | |
1341 | labels = (bfd_vma *) bfd_malloc (amt); | |
252b5132 RH |
1342 | if (labels == NULL) |
1343 | goto error_return; | |
1344 | label_end = labels; | |
1345 | for (irel = internal_relocs; irel < irelend; irel++) | |
1346 | { | |
1347 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL) | |
1348 | { | |
1349 | *label_end = irel->r_offset; | |
1350 | ++label_end; | |
1351 | } | |
1352 | } | |
1353 | ||
1354 | /* Note that the assembler currently always outputs relocs in | |
1355 | address order. If that ever changes, this code will need to sort | |
1356 | the label values and the relocs. */ | |
1357 | ||
1358 | label = labels; | |
1359 | ||
1360 | for (irel = internal_relocs; irel < irelend; irel++) | |
1361 | { | |
1362 | bfd_vma start, stop; | |
1363 | ||
1364 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE) | |
1365 | continue; | |
1366 | ||
1367 | start = irel->r_offset; | |
1368 | ||
1369 | for (irel++; irel < irelend; irel++) | |
1370 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA) | |
1371 | break; | |
1372 | if (irel < irelend) | |
1373 | stop = irel->r_offset; | |
1374 | else | |
eea6121a | 1375 | stop = sec->size; |
252b5132 RH |
1376 | |
1377 | if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns, | |
09fd220b | 1378 | internal_relocs, &label, |
252b5132 RH |
1379 | label_end, start, stop, pswapped)) |
1380 | goto error_return; | |
1381 | } | |
1382 | ||
1383 | free (labels); | |
1384 | ||
b34976b6 | 1385 | return TRUE; |
252b5132 RH |
1386 | |
1387 | error_return: | |
1388 | if (labels != NULL) | |
1389 | free (labels); | |
b34976b6 | 1390 | return FALSE; |
252b5132 RH |
1391 | } |
1392 | ||
1393 | /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */ | |
1394 | ||
b34976b6 | 1395 | static bfd_boolean |
09fd220b KK |
1396 | sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs, |
1397 | bfd_byte *contents, bfd_vma addr) | |
252b5132 RH |
1398 | { |
1399 | Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs; | |
1400 | unsigned short i1, i2; | |
1401 | Elf_Internal_Rela *irel, *irelend; | |
1402 | ||
1403 | /* Swap the instructions themselves. */ | |
1404 | i1 = bfd_get_16 (abfd, contents + addr); | |
1405 | i2 = bfd_get_16 (abfd, contents + addr + 2); | |
dc810e39 AM |
1406 | bfd_put_16 (abfd, (bfd_vma) i2, contents + addr); |
1407 | bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2); | |
252b5132 RH |
1408 | |
1409 | /* Adjust all reloc addresses. */ | |
1410 | irelend = internal_relocs + sec->reloc_count; | |
1411 | for (irel = internal_relocs; irel < irelend; irel++) | |
1412 | { | |
1413 | enum elf_sh_reloc_type type; | |
1414 | int add; | |
1415 | ||
1416 | /* There are a few special types of relocs that we don't want to | |
067653c5 AM |
1417 | adjust. These relocs do not apply to the instruction itself, |
1418 | but are only associated with the address. */ | |
252b5132 RH |
1419 | type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info); |
1420 | if (type == R_SH_ALIGN | |
1421 | || type == R_SH_CODE | |
1422 | || type == R_SH_DATA | |
1423 | || type == R_SH_LABEL) | |
1424 | continue; | |
1425 | ||
1426 | /* If an R_SH_USES reloc points to one of the addresses being | |
067653c5 AM |
1427 | swapped, we must adjust it. It would be incorrect to do this |
1428 | for a jump, though, since we want to execute both | |
1429 | instructions after the jump. (We have avoided swapping | |
1430 | around a label, so the jump will not wind up executing an | |
1431 | instruction it shouldn't). */ | |
252b5132 RH |
1432 | if (type == R_SH_USES) |
1433 | { | |
1434 | bfd_vma off; | |
1435 | ||
1436 | off = irel->r_offset + 4 + irel->r_addend; | |
1437 | if (off == addr) | |
1438 | irel->r_offset += 2; | |
1439 | else if (off == addr + 2) | |
1440 | irel->r_offset -= 2; | |
1441 | } | |
1442 | ||
1443 | if (irel->r_offset == addr) | |
1444 | { | |
1445 | irel->r_offset += 2; | |
1446 | add = -2; | |
1447 | } | |
1448 | else if (irel->r_offset == addr + 2) | |
1449 | { | |
1450 | irel->r_offset -= 2; | |
1451 | add = 2; | |
1452 | } | |
1453 | else | |
1454 | add = 0; | |
1455 | ||
1456 | if (add != 0) | |
1457 | { | |
1458 | bfd_byte *loc; | |
1459 | unsigned short insn, oinsn; | |
b34976b6 | 1460 | bfd_boolean overflow; |
252b5132 RH |
1461 | |
1462 | loc = contents + irel->r_offset; | |
b34976b6 | 1463 | overflow = FALSE; |
252b5132 RH |
1464 | switch (type) |
1465 | { | |
1466 | default: | |
1467 | break; | |
1468 | ||
1469 | case R_SH_DIR8WPN: | |
1470 | case R_SH_DIR8WPZ: | |
1471 | insn = bfd_get_16 (abfd, loc); | |
1472 | oinsn = insn; | |
1473 | insn += add / 2; | |
1474 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1475 | overflow = TRUE; |
dc810e39 | 1476 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1477 | break; |
1478 | ||
1479 | case R_SH_IND12W: | |
1480 | insn = bfd_get_16 (abfd, loc); | |
1481 | oinsn = insn; | |
1482 | insn += add / 2; | |
1483 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1484 | overflow = TRUE; |
dc810e39 | 1485 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1486 | break; |
1487 | ||
1488 | case R_SH_DIR8WPL: | |
1489 | /* This reloc ignores the least significant 3 bits of | |
067653c5 AM |
1490 | the program counter before adding in the offset. |
1491 | This means that if ADDR is at an even address, the | |
1492 | swap will not affect the offset. If ADDR is an at an | |
1493 | odd address, then the instruction will be crossing a | |
1494 | four byte boundary, and must be adjusted. */ | |
252b5132 RH |
1495 | if ((addr & 3) != 0) |
1496 | { | |
1497 | insn = bfd_get_16 (abfd, loc); | |
1498 | oinsn = insn; | |
1499 | insn += add / 2; | |
1500 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1501 | overflow = TRUE; |
dc810e39 | 1502 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1503 | } |
1504 | ||
1505 | break; | |
1506 | } | |
1507 | ||
1508 | if (overflow) | |
1509 | { | |
4eca0228 | 1510 | _bfd_error_handler |
695344c0 | 1511 | /* xgettext:c-format */ |
2dcf00ce AM |
1512 | (_("%pB: %#" PRIx64 ": fatal: reloc overflow while relaxing"), |
1513 | abfd, (uint64_t) irel->r_offset); | |
252b5132 | 1514 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1515 | return FALSE; |
252b5132 RH |
1516 | } |
1517 | } | |
1518 | } | |
1519 | ||
b34976b6 | 1520 | return TRUE; |
252b5132 RH |
1521 | } |
1522 | \f | |
55e6e397 RS |
1523 | /* Describes one of the various PLT styles. */ |
1524 | ||
1525 | struct elf_sh_plt_info | |
1526 | { | |
1527 | /* The template for the first PLT entry, or NULL if there is no special | |
1528 | first entry. */ | |
1529 | const bfd_byte *plt0_entry; | |
1530 | ||
1531 | /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */ | |
1532 | bfd_vma plt0_entry_size; | |
1533 | ||
1534 | /* Index I is the offset into PLT0_ENTRY of a pointer to | |
1535 | _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE | |
1536 | if there is no such pointer. */ | |
1537 | bfd_vma plt0_got_fields[3]; | |
1538 | ||
1539 | /* The template for a symbol's PLT entry. */ | |
1540 | const bfd_byte *symbol_entry; | |
1541 | ||
1542 | /* The size of SYMBOL_ENTRY in bytes. */ | |
1543 | bfd_vma symbol_entry_size; | |
1544 | ||
1545 | /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used | |
1546 | on all targets. The comments by each member indicate the value | |
1547 | that the field must hold. */ | |
1548 | struct { | |
1549 | bfd_vma got_entry; /* the address of the symbol's .got.plt entry */ | |
1550 | bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */ | |
1551 | bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */ | |
8e45593f NC |
1552 | bfd_boolean got20; /* TRUE if got_entry points to a movi20 |
1553 | instruction (instead of a constant pool | |
1554 | entry). */ | |
55e6e397 RS |
1555 | } symbol_fields; |
1556 | ||
1557 | /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */ | |
1558 | bfd_vma symbol_resolve_offset; | |
8e45593f NC |
1559 | |
1560 | /* A different PLT layout which can be used for the first | |
1561 | MAX_SHORT_PLT entries. It must share the same plt0. NULL in | |
1562 | other cases. */ | |
1563 | const struct elf_sh_plt_info *short_plt; | |
55e6e397 RS |
1564 | }; |
1565 | ||
37c644f2 | 1566 | /* The size in bytes of an entry in the procedure linkage table. */ |
252b5132 | 1567 | |
55e6e397 | 1568 | #define ELF_PLT_ENTRY_SIZE 28 |
37c644f2 AO |
1569 | |
1570 | /* First entry in an absolute procedure linkage table look like this. */ | |
1571 | ||
6c426cf3 | 1572 | /* Note - this code has been "optimised" not to use r2. r2 is used by |
4cc11e76 | 1573 | GCC to return the address of large structures, so it should not be |
6c426cf3 NC |
1574 | corrupted here. This does mean however, that this PLT does not conform |
1575 | to the SH PIC ABI. That spec says that r0 contains the type of the PLT | |
1576 | and r2 contains the GOT id. This version stores the GOT id in r0 and | |
1577 | ignores the type. Loaders can easily detect this difference however, | |
1578 | since the type will always be 0 or 8, and the GOT ids will always be | |
1579 | greater than or equal to 12. */ | |
55e6e397 | 1580 | static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1581 | { |
1582 | 0xd0, 0x05, /* mov.l 2f,r0 */ | |
1583 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1584 | 0x2f, 0x06, /* mov.l r0,@-r15 */ | |
1585 | 0xd0, 0x03, /* mov.l 1f,r0 */ | |
1586 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1587 | 0x40, 0x2b, /* jmp @r0 */ | |
1588 | 0x60, 0xf6, /* mov.l @r15+,r0 */ | |
1589 | 0x00, 0x09, /* nop */ | |
1590 | 0x00, 0x09, /* nop */ | |
1591 | 0x00, 0x09, /* nop */ | |
1592 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1593 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1594 | }; | |
1595 | ||
55e6e397 | 1596 | static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1597 | { |
1598 | 0x05, 0xd0, /* mov.l 2f,r0 */ | |
1599 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1600 | 0x06, 0x2f, /* mov.l r0,@-r15 */ | |
1601 | 0x03, 0xd0, /* mov.l 1f,r0 */ | |
1602 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1603 | 0x2b, 0x40, /* jmp @r0 */ | |
1604 | 0xf6, 0x60, /* mov.l @r15+,r0 */ | |
1605 | 0x09, 0x00, /* nop */ | |
1606 | 0x09, 0x00, /* nop */ | |
1607 | 0x09, 0x00, /* nop */ | |
1608 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1609 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1610 | }; | |
1611 | ||
1612 | /* Sebsequent entries in an absolute procedure linkage table look like | |
1613 | this. */ | |
1614 | ||
55e6e397 | 1615 | static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1616 | { |
1617 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
55e6e397 | 1618 | 0x60, 0x02, /* mov.l @(r0,r12),r0 */ |
6c426cf3 NC |
1619 | 0xd1, 0x02, /* mov.l 0f,r1 */ |
1620 | 0x40, 0x2b, /* jmp @r0 */ | |
1621 | 0x60, 0x13, /* mov r1,r0 */ | |
1622 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1623 | 0x40, 0x2b, /* jmp @r0 */ | |
1624 | 0x00, 0x09, /* nop */ | |
1625 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1626 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1627 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1628 | }; | |
1629 | ||
55e6e397 | 1630 | static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1631 | { |
1632 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1633 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1634 | 0x02, 0xd1, /* mov.l 0f,r1 */ | |
1635 | 0x2b, 0x40, /* jmp @r0 */ | |
1636 | 0x13, 0x60, /* mov r1,r0 */ | |
1637 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1638 | 0x2b, 0x40, /* jmp @r0 */ | |
1639 | 0x09, 0x00, /* nop */ | |
1640 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1641 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1642 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1643 | }; | |
1644 | ||
1645 | /* Entries in a PIC procedure linkage table look like this. */ | |
1646 | ||
55e6e397 | 1647 | static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1648 | { |
1649 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
1650 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1651 | 0x40, 0x2b, /* jmp @r0 */ | |
1652 | 0x00, 0x09, /* nop */ | |
1653 | 0x50, 0xc2, /* mov.l @(8,r12),r0 */ | |
1654 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1655 | 0x40, 0x2b, /* jmp @r0 */ | |
1656 | 0x50, 0xc1, /* mov.l @(4,r12),r0 */ | |
1657 | 0x00, 0x09, /* nop */ | |
1658 | 0x00, 0x09, /* nop */ | |
1659 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1660 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1661 | }; | |
1662 | ||
55e6e397 | 1663 | static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1664 | { |
1665 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1666 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
1667 | 0x2b, 0x40, /* jmp @r0 */ | |
1668 | 0x09, 0x00, /* nop */ | |
1669 | 0xc2, 0x50, /* mov.l @(8,r12),r0 */ | |
1670 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1671 | 0x2b, 0x40, /* jmp @r0 */ | |
1672 | 0xc1, 0x50, /* mov.l @(4,r12),r0 */ | |
1673 | 0x09, 0x00, /* nop */ | |
1674 | 0x09, 0x00, /* nop */ | |
1675 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1676 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1677 | }; | |
1678 | ||
55e6e397 RS |
1679 | static const struct elf_sh_plt_info elf_sh_plts[2][2] = { |
1680 | { | |
1681 | { | |
1682 | /* Big-endian non-PIC. */ | |
1683 | elf_sh_plt0_entry_be, | |
1684 | ELF_PLT_ENTRY_SIZE, | |
1685 | { MINUS_ONE, 24, 20 }, | |
1686 | elf_sh_plt_entry_be, | |
1687 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1688 | { 20, 16, 24, FALSE }, |
1689 | 8, | |
1690 | NULL | |
55e6e397 RS |
1691 | }, |
1692 | { | |
1693 | /* Little-endian non-PIC. */ | |
1694 | elf_sh_plt0_entry_le, | |
1695 | ELF_PLT_ENTRY_SIZE, | |
1696 | { MINUS_ONE, 24, 20 }, | |
1697 | elf_sh_plt_entry_le, | |
1698 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1699 | { 20, 16, 24, FALSE }, |
1700 | 8, | |
1701 | NULL | |
55e6e397 RS |
1702 | }, |
1703 | }, | |
1704 | { | |
1705 | { | |
1706 | /* Big-endian PIC. */ | |
1707 | elf_sh_plt0_entry_be, | |
1708 | ELF_PLT_ENTRY_SIZE, | |
1709 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1710 | elf_sh_pic_plt_entry_be, | |
1711 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1712 | { 20, MINUS_ONE, 24, FALSE }, |
1713 | 8, | |
1714 | NULL | |
55e6e397 RS |
1715 | }, |
1716 | { | |
1717 | /* Little-endian PIC. */ | |
1718 | elf_sh_plt0_entry_le, | |
1719 | ELF_PLT_ENTRY_SIZE, | |
1720 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1721 | elf_sh_pic_plt_entry_le, | |
1722 | ELF_PLT_ENTRY_SIZE, | |
8e45593f NC |
1723 | { 20, MINUS_ONE, 24, FALSE }, |
1724 | 8, | |
1725 | NULL | |
55e6e397 RS |
1726 | }, |
1727 | } | |
1728 | }; | |
252b5132 | 1729 | |
55e6e397 RS |
1730 | #define VXWORKS_PLT_HEADER_SIZE 12 |
1731 | #define VXWORKS_PLT_ENTRY_SIZE 24 | |
252b5132 | 1732 | |
55e6e397 RS |
1733 | static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] = |
1734 | { | |
1735 | 0xd1, 0x01, /* mov.l @(8,pc),r1 */ | |
1736 | 0x61, 0x12, /* mov.l @r1,r1 */ | |
1737 | 0x41, 0x2b, /* jmp @r1 */ | |
1738 | 0x00, 0x09, /* nop */ | |
1739 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1740 | }; | |
252b5132 | 1741 | |
55e6e397 RS |
1742 | static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] = |
1743 | { | |
1744 | 0x01, 0xd1, /* mov.l @(8,pc),r1 */ | |
1745 | 0x12, 0x61, /* mov.l @r1,r1 */ | |
1746 | 0x2b, 0x41, /* jmp @r1 */ | |
1747 | 0x09, 0x00, /* nop */ | |
1748 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1749 | }; | |
1750 | ||
1751 | static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1752 | { | |
1753 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1754 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1755 | 0x40, 0x2b, /* jmp @r0 */ | |
1756 | 0x00, 0x09, /* nop */ | |
1757 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1758 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1759 | 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */ | |
1760 | 0x00, 0x09, /* nop */ | |
1761 | 0x00, 0x09, /* nop */ | |
1762 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1763 | }; | |
1764 | ||
1765 | static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1766 | { | |
1767 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1768 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1769 | 0x2b, 0x40, /* jmp @r0 */ | |
1770 | 0x09, 0x00, /* nop */ | |
1771 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1772 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1773 | 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */ | |
1774 | 0x09, 0x00, /* nop */ | |
1775 | 0x09, 0x00, /* nop */ | |
1776 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1777 | }; | |
1778 | ||
1779 | static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1780 | { | |
1781 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1782 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1783 | 0x40, 0x2b, /* jmp @r0 */ | |
1784 | 0x00, 0x09, /* nop */ | |
1785 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
1786 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1787 | 0x51, 0xc2, /* mov.l @(8,r12),r1 */ | |
1788 | 0x41, 0x2b, /* jmp @r1 */ | |
1789 | 0x00, 0x09, /* nop */ | |
1790 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1791 | }; | |
1792 | ||
1793 | static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1794 | { | |
1795 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1796 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
1797 | 0x2b, 0x40, /* jmp @r0 */ | |
1798 | 0x09, 0x00, /* nop */ | |
1799 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
1800 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1801 | 0xc2, 0x51, /* mov.l @(8,r12),r1 */ | |
1802 | 0x2b, 0x41, /* jmp @r1 */ | |
1803 | 0x09, 0x00, /* nop */ | |
1804 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1805 | }; | |
1806 | ||
1807 | static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = { | |
1808 | { | |
1809 | { | |
1810 | /* Big-endian non-PIC. */ | |
1811 | vxworks_sh_plt0_entry_be, | |
1812 | VXWORKS_PLT_HEADER_SIZE, | |
1813 | { MINUS_ONE, MINUS_ONE, 8 }, | |
1814 | vxworks_sh_plt_entry_be, | |
1815 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1816 | { 8, 14, 20, FALSE }, |
1817 | 12, | |
1818 | NULL | |
55e6e397 RS |
1819 | }, |
1820 | { | |
1821 | /* Little-endian non-PIC. */ | |
1822 | vxworks_sh_plt0_entry_le, | |
1823 | VXWORKS_PLT_HEADER_SIZE, | |
1824 | { MINUS_ONE, MINUS_ONE, 8 }, | |
1825 | vxworks_sh_plt_entry_le, | |
1826 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1827 | { 8, 14, 20, FALSE }, |
1828 | 12, | |
1829 | NULL | |
55e6e397 RS |
1830 | }, |
1831 | }, | |
1832 | { | |
1833 | { | |
1834 | /* Big-endian PIC. */ | |
1835 | NULL, | |
1836 | 0, | |
1837 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1838 | vxworks_sh_pic_plt_entry_be, | |
1839 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1840 | { 8, MINUS_ONE, 20, FALSE }, |
1841 | 12, | |
1842 | NULL | |
55e6e397 RS |
1843 | }, |
1844 | { | |
1845 | /* Little-endian PIC. */ | |
1846 | NULL, | |
1847 | 0, | |
1848 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1849 | vxworks_sh_pic_plt_entry_le, | |
1850 | VXWORKS_PLT_ENTRY_SIZE, | |
8e45593f NC |
1851 | { 8, MINUS_ONE, 20, FALSE }, |
1852 | 12, | |
1853 | NULL | |
55e6e397 RS |
1854 | }, |
1855 | } | |
1856 | }; | |
9bdafcce | 1857 | |
8e45593f NC |
1858 | /* FDPIC PLT entries. Two unimplemented optimizations for lazy |
1859 | binding are to omit the lazy binding stub when linking with -z now | |
1860 | and to move lazy binding stubs into a separate region for better | |
1861 | cache behavior. */ | |
1862 | ||
1863 | #define FDPIC_PLT_ENTRY_SIZE 28 | |
1864 | #define FDPIC_PLT_LAZY_OFFSET 20 | |
1865 | ||
1866 | /* FIXME: The lazy binding stub requires a plt0 - which may need to be | |
1867 | duplicated if it is out of range, or which can be inlined. So | |
1868 | right now it is always inlined, which wastes a word per stub. It | |
1869 | might be easier to handle the duplication if we put the lazy | |
1870 | stubs separately. */ | |
1871 | ||
1872 | static const bfd_byte fdpic_sh_plt_entry_be[FDPIC_PLT_ENTRY_SIZE] = | |
1873 | { | |
1874 | 0xd0, 0x02, /* mov.l @(12,pc),r0 */ | |
1875 | 0x01, 0xce, /* mov.l @(r0,r12),r1 */ | |
1876 | 0x70, 0x04, /* add #4, r0 */ | |
1877 | 0x41, 0x2b, /* jmp @r1 */ | |
1878 | 0x0c, 0xce, /* mov.l @(r0,r12),r12 */ | |
1879 | 0x00, 0x09, /* nop */ | |
1880 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */ | |
1881 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1882 | 0x60, 0xc2, /* mov.l @r12,r0 */ | |
1883 | 0x40, 0x2b, /* jmp @r0 */ | |
1884 | 0x53, 0xc1, /* mov.l @(4,r12),r3 */ | |
1885 | 0x00, 0x09, /* nop */ | |
1886 | }; | |
1887 | ||
1888 | static const bfd_byte fdpic_sh_plt_entry_le[FDPIC_PLT_ENTRY_SIZE] = | |
1889 | { | |
1890 | 0x02, 0xd0, /* mov.l @(12,pc),r0 */ | |
1891 | 0xce, 0x01, /* mov.l @(r0,r12),r1 */ | |
1892 | 0x04, 0x70, /* add #4, r0 */ | |
1893 | 0x2b, 0x41, /* jmp @r1 */ | |
1894 | 0xce, 0x0c, /* mov.l @(r0,r12),r12 */ | |
1895 | 0x09, 0x00, /* nop */ | |
1896 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol's funcdesc */ | |
1897 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1898 | 0xc2, 0x60, /* mov.l @r12,r0 */ | |
1899 | 0x2b, 0x40, /* jmp @r0 */ | |
1900 | 0xc1, 0x53, /* mov.l @(4,r12),r3 */ | |
1901 | 0x09, 0x00, /* nop */ | |
1902 | }; | |
1903 | ||
1904 | static const struct elf_sh_plt_info fdpic_sh_plts[2] = { | |
1905 | { | |
1906 | /* Big-endian PIC. */ | |
1907 | NULL, | |
1908 | 0, | |
1909 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1910 | fdpic_sh_plt_entry_be, | |
1911 | FDPIC_PLT_ENTRY_SIZE, | |
1912 | { 12, MINUS_ONE, 16, FALSE }, | |
1913 | FDPIC_PLT_LAZY_OFFSET, | |
1914 | NULL | |
1915 | }, | |
1916 | { | |
1917 | /* Little-endian PIC. */ | |
1918 | NULL, | |
1919 | 0, | |
1920 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1921 | fdpic_sh_plt_entry_le, | |
1922 | FDPIC_PLT_ENTRY_SIZE, | |
1923 | { 12, MINUS_ONE, 16, FALSE }, | |
1924 | FDPIC_PLT_LAZY_OFFSET, | |
1925 | NULL | |
1926 | }, | |
1927 | }; | |
1928 | ||
1929 | /* On SH2A, we can use the movi20 instruction to generate shorter PLT | |
1930 | entries for the first 64K slots. We use the normal FDPIC PLT entry | |
1931 | past that point; we could also use movi20s, which might be faster, | |
1932 | but would not be any smaller. */ | |
1933 | ||
1934 | #define FDPIC_SH2A_PLT_ENTRY_SIZE 24 | |
1935 | #define FDPIC_SH2A_PLT_LAZY_OFFSET 16 | |
1936 | ||
1937 | static const bfd_byte fdpic_sh2a_plt_entry_be[FDPIC_SH2A_PLT_ENTRY_SIZE] = | |
1938 | { | |
1939 | 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */ | |
1940 | 0x01, 0xce, /* mov.l @(r0,r12),r1 */ | |
1941 | 0x70, 0x04, /* add #4, r0 */ | |
1942 | 0x41, 0x2b, /* jmp @r1 */ | |
1943 | 0x0c, 0xce, /* mov.l @(r0,r12),r12 */ | |
1944 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1945 | 0x60, 0xc2, /* mov.l @r12,r0 */ | |
1946 | 0x40, 0x2b, /* jmp @r0 */ | |
1947 | 0x53, 0xc1, /* mov.l @(4,r12),r3 */ | |
1948 | 0x00, 0x09, /* nop */ | |
1949 | }; | |
1950 | ||
1951 | static const bfd_byte fdpic_sh2a_plt_entry_le[FDPIC_SH2A_PLT_ENTRY_SIZE] = | |
1952 | { | |
1953 | 0, 0, 0, 0, /* movi20 #gotofffuncdesc,r0 */ | |
1954 | 0xce, 0x01, /* mov.l @(r0,r12),r1 */ | |
1955 | 0x04, 0x70, /* add #4, r0 */ | |
1956 | 0x2b, 0x41, /* jmp @r1 */ | |
1957 | 0xce, 0x0c, /* mov.l @(r0,r12),r12 */ | |
1958 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1959 | 0xc2, 0x60, /* mov.l @r12,r0 */ | |
1960 | 0x2b, 0x40, /* jmp @r0 */ | |
1961 | 0xc1, 0x53, /* mov.l @(4,r12),r3 */ | |
1962 | 0x09, 0x00, /* nop */ | |
1963 | }; | |
1964 | ||
1965 | static const struct elf_sh_plt_info fdpic_sh2a_short_plt_be = { | |
1966 | /* Big-endian FDPIC, max index 64K. */ | |
1967 | NULL, | |
1968 | 0, | |
1969 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1970 | fdpic_sh2a_plt_entry_be, | |
1971 | FDPIC_SH2A_PLT_ENTRY_SIZE, | |
1972 | { 0, MINUS_ONE, 12, TRUE }, | |
1973 | FDPIC_SH2A_PLT_LAZY_OFFSET, | |
1974 | NULL | |
1975 | }; | |
1976 | ||
1977 | static const struct elf_sh_plt_info fdpic_sh2a_short_plt_le = { | |
1978 | /* Little-endian FDPIC, max index 64K. */ | |
1979 | NULL, | |
1980 | 0, | |
1981 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1982 | fdpic_sh2a_plt_entry_le, | |
1983 | FDPIC_SH2A_PLT_ENTRY_SIZE, | |
1984 | { 0, MINUS_ONE, 12, TRUE }, | |
1985 | FDPIC_SH2A_PLT_LAZY_OFFSET, | |
1986 | NULL | |
1987 | }; | |
1988 | ||
1989 | static const struct elf_sh_plt_info fdpic_sh2a_plts[2] = { | |
1990 | { | |
1991 | /* Big-endian PIC. */ | |
1992 | NULL, | |
1993 | 0, | |
1994 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1995 | fdpic_sh_plt_entry_be, | |
1996 | FDPIC_PLT_ENTRY_SIZE, | |
1997 | { 12, MINUS_ONE, 16, FALSE }, | |
1998 | FDPIC_PLT_LAZY_OFFSET, | |
1999 | &fdpic_sh2a_short_plt_be | |
2000 | }, | |
2001 | { | |
2002 | /* Little-endian PIC. */ | |
2003 | NULL, | |
2004 | 0, | |
2005 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
2006 | fdpic_sh_plt_entry_le, | |
2007 | FDPIC_PLT_ENTRY_SIZE, | |
2008 | { 12, MINUS_ONE, 16, FALSE }, | |
2009 | FDPIC_PLT_LAZY_OFFSET, | |
2010 | &fdpic_sh2a_short_plt_le | |
2011 | }, | |
2012 | }; | |
2013 | ||
55e6e397 RS |
2014 | /* Return the type of PLT associated with ABFD. PIC_P is true if |
2015 | the object is position-independent. */ | |
9bdafcce | 2016 | |
55e6e397 | 2017 | static const struct elf_sh_plt_info * |
8e45593f | 2018 | get_plt_info (bfd *abfd, bfd_boolean pic_p) |
55e6e397 | 2019 | { |
8e45593f NC |
2020 | if (fdpic_object_p (abfd)) |
2021 | { | |
2022 | /* If any input file requires SH2A we can use a shorter PLT | |
2023 | sequence. */ | |
2024 | if (sh_get_arch_from_bfd_mach (bfd_get_mach (abfd)) & arch_sh2a_base) | |
2025 | return &fdpic_sh2a_plts[!bfd_big_endian (abfd)]; | |
2026 | else | |
2027 | return &fdpic_sh_plts[!bfd_big_endian (abfd)]; | |
2028 | } | |
55e6e397 RS |
2029 | if (vxworks_object_p (abfd)) |
2030 | return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2031 | return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2032 | } | |
9bdafcce | 2033 | |
55e6e397 RS |
2034 | /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD. |
2035 | VALUE is the field's value and CODE_P is true if VALUE refers to code, | |
2036 | not data. */ | |
9bdafcce | 2037 | |
55e6e397 RS |
2038 | inline static void |
2039 | install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED, | |
2040 | unsigned long value, bfd_byte *addr) | |
2041 | { | |
2042 | bfd_put_32 (output_bfd, value, addr); | |
2043 | } | |
015551fc | 2044 | |
8e45593f NC |
2045 | /* The number of PLT entries which can use a shorter PLT, if any. |
2046 | Currently always 64K, since only SH-2A FDPIC uses this; a | |
2047 | 20-bit movi20 can address that many function descriptors below | |
2048 | _GLOBAL_OFFSET_TABLE_. */ | |
2049 | #define MAX_SHORT_PLT 65536 | |
2050 | ||
55e6e397 RS |
2051 | /* Return the index of the PLT entry at byte offset OFFSET. */ |
2052 | ||
2053 | static bfd_vma | |
2054 | get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset) | |
2055 | { | |
8e45593f NC |
2056 | bfd_vma plt_index = 0; |
2057 | ||
2058 | offset -= info->plt0_entry_size; | |
2059 | if (info->short_plt != NULL) | |
2060 | { | |
2061 | if (offset > MAX_SHORT_PLT * info->short_plt->symbol_entry_size) | |
2062 | { | |
2063 | plt_index = MAX_SHORT_PLT; | |
2064 | offset -= MAX_SHORT_PLT * info->short_plt->symbol_entry_size; | |
2065 | } | |
2066 | else | |
2067 | info = info->short_plt; | |
2068 | } | |
2069 | return plt_index + offset / info->symbol_entry_size; | |
55e6e397 RS |
2070 | } |
2071 | ||
2072 | /* Do the inverse operation. */ | |
2073 | ||
2074 | static bfd_vma | |
91d6fa6a | 2075 | get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma plt_index) |
55e6e397 | 2076 | { |
8e45593f NC |
2077 | bfd_vma offset = 0; |
2078 | ||
2079 | if (info->short_plt != NULL) | |
2080 | { | |
2081 | if (plt_index > MAX_SHORT_PLT) | |
2082 | { | |
2083 | offset = MAX_SHORT_PLT * info->short_plt->symbol_entry_size; | |
2084 | plt_index -= MAX_SHORT_PLT; | |
2085 | } | |
2086 | else | |
2087 | info = info->short_plt; | |
2088 | } | |
2089 | return (offset + info->plt0_entry_size | |
2090 | + (plt_index * info->symbol_entry_size)); | |
55e6e397 RS |
2091 | } |
2092 | ||
8e45593f NC |
2093 | union gotref |
2094 | { | |
2095 | bfd_signed_vma refcount; | |
2096 | bfd_vma offset; | |
2097 | }; | |
2098 | ||
37c644f2 AO |
2099 | /* sh ELF linker hash entry. */ |
2100 | ||
38b1a46c NC |
2101 | struct elf_sh_link_hash_entry |
2102 | { | |
37c644f2 AO |
2103 | struct elf_link_hash_entry root; |
2104 | ||
067653c5 | 2105 | /* Track dynamic relocs copied for this symbol. */ |
3bf083ed | 2106 | struct elf_dyn_relocs *dyn_relocs; |
4989d792 SC |
2107 | |
2108 | bfd_signed_vma gotplt_refcount; | |
3376eaf5 | 2109 | |
8e45593f NC |
2110 | /* A local function descriptor, for FDPIC. The refcount counts |
2111 | R_SH_FUNCDESC, R_SH_GOTOFFFUNCDESC, and R_SH_GOTOFFFUNCDESC20 | |
2112 | relocations; the PLT and GOT entry are accounted | |
2113 | for separately. After adjust_dynamic_symbol, the offset is | |
2114 | MINUS_ONE if there is no local descriptor (dynamic linker | |
2115 | managed and no PLT entry, or undefined weak non-dynamic). | |
2116 | During check_relocs we do not yet know whether the local | |
2117 | descriptor will be canonical. */ | |
2118 | union gotref funcdesc; | |
2119 | ||
2120 | /* How many of the above refcounted relocations were R_SH_FUNCDESC, | |
2121 | and thus require fixups or relocations. */ | |
2122 | bfd_signed_vma abs_funcdesc_refcount; | |
2123 | ||
85e02784 | 2124 | enum got_type { |
8e45593f NC |
2125 | GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE, GOT_FUNCDESC |
2126 | } got_type; | |
3376eaf5 KK |
2127 | }; |
2128 | ||
2129 | #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent)) | |
2130 | ||
2131 | struct sh_elf_obj_tdata | |
2132 | { | |
2133 | struct elf_obj_tdata root; | |
2134 | ||
8e45593f NC |
2135 | /* got_type for each local got entry. */ |
2136 | char *local_got_type; | |
2137 | ||
2138 | /* Function descriptor refcount and offset for each local symbol. */ | |
2139 | union gotref *local_funcdesc; | |
37c644f2 AO |
2140 | }; |
2141 | ||
3376eaf5 KK |
2142 | #define sh_elf_tdata(abfd) \ |
2143 | ((struct sh_elf_obj_tdata *) (abfd)->tdata.any) | |
2144 | ||
8e45593f NC |
2145 | #define sh_elf_local_got_type(abfd) \ |
2146 | (sh_elf_tdata (abfd)->local_got_type) | |
2147 | ||
2148 | #define sh_elf_local_funcdesc(abfd) \ | |
2149 | (sh_elf_tdata (abfd)->local_funcdesc) | |
3376eaf5 | 2150 | |
0ffa91dd NC |
2151 | #define is_sh_elf(bfd) \ |
2152 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
2153 | && elf_tdata (bfd) != NULL \ | |
4dfe6ac6 | 2154 | && elf_object_id (bfd) == SH_ELF_DATA) |
0ffa91dd | 2155 | |
3376eaf5 KK |
2156 | /* Override the generic function because we need to store sh_elf_obj_tdata |
2157 | as the specific tdata. */ | |
2158 | ||
b34976b6 | 2159 | static bfd_boolean |
09fd220b | 2160 | sh_elf_mkobject (bfd *abfd) |
3376eaf5 | 2161 | { |
0ffa91dd | 2162 | return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata), |
4dfe6ac6 | 2163 | SH_ELF_DATA); |
3376eaf5 | 2164 | } |
b34976b6 | 2165 | |
37c644f2 AO |
2166 | /* sh ELF linker hash table. */ |
2167 | ||
38b1a46c NC |
2168 | struct elf_sh_link_hash_table |
2169 | { | |
37c644f2 | 2170 | struct elf_link_hash_table root; |
37c644f2 | 2171 | |
067653c5 | 2172 | /* Short-cuts to get to dynamic linker sections. */ |
067653c5 AM |
2173 | asection *sdynbss; |
2174 | asection *srelbss; | |
8e45593f NC |
2175 | asection *sfuncdesc; |
2176 | asection *srelfuncdesc; | |
2177 | asection *srofixup; | |
37c644f2 | 2178 | |
55e6e397 RS |
2179 | /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */ |
2180 | asection *srelplt2; | |
2181 | ||
87d72d41 AM |
2182 | /* Small local sym cache. */ |
2183 | struct sym_cache sym_cache; | |
3376eaf5 KK |
2184 | |
2185 | /* A counter or offset to track a TLS got entry. */ | |
2186 | union | |
2187 | { | |
2188 | bfd_signed_vma refcount; | |
2189 | bfd_vma offset; | |
2190 | } tls_ldm_got; | |
55e6e397 RS |
2191 | |
2192 | /* The type of PLT to use. */ | |
2193 | const struct elf_sh_plt_info *plt_info; | |
2194 | ||
2195 | /* True if the target system is VxWorks. */ | |
2196 | bfd_boolean vxworks_p; | |
8e45593f NC |
2197 | |
2198 | /* True if the target system uses FDPIC. */ | |
2199 | bfd_boolean fdpic_p; | |
067653c5 | 2200 | }; |
37c644f2 AO |
2201 | |
2202 | /* Traverse an sh ELF linker hash table. */ | |
2203 | ||
2204 | #define sh_elf_link_hash_traverse(table, func, info) \ | |
2205 | (elf_link_hash_traverse \ | |
2206 | (&(table)->root, \ | |
09fd220b | 2207 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
37c644f2 AO |
2208 | (info))) |
2209 | ||
2210 | /* Get the sh ELF linker hash table from a link_info structure. */ | |
2211 | ||
2212 | #define sh_elf_hash_table(p) \ | |
4dfe6ac6 NC |
2213 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
2214 | == SH_ELF_DATA ? ((struct elf_sh_link_hash_table *) ((p)->hash)) : NULL) | |
37c644f2 AO |
2215 | |
2216 | /* Create an entry in an sh ELF linker hash table. */ | |
2217 | ||
2218 | static struct bfd_hash_entry * | |
09fd220b KK |
2219 | sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
2220 | struct bfd_hash_table *table, | |
2221 | const char *string) | |
37c644f2 AO |
2222 | { |
2223 | struct elf_sh_link_hash_entry *ret = | |
2224 | (struct elf_sh_link_hash_entry *) entry; | |
2225 | ||
2226 | /* Allocate the structure if it has not already been allocated by a | |
2227 | subclass. */ | |
2228 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2229 | ret = ((struct elf_sh_link_hash_entry *) | |
2230 | bfd_hash_allocate (table, | |
2231 | sizeof (struct elf_sh_link_hash_entry))); | |
2232 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2233 | return (struct bfd_hash_entry *) ret; | |
2234 | ||
2235 | /* Call the allocation method of the superclass. */ | |
2236 | ret = ((struct elf_sh_link_hash_entry *) | |
2237 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
2238 | table, string)); | |
2239 | if (ret != (struct elf_sh_link_hash_entry *) NULL) | |
2240 | { | |
396a6083 SC |
2241 | ret->dyn_relocs = NULL; |
2242 | ret->gotplt_refcount = 0; | |
8e45593f NC |
2243 | ret->funcdesc.refcount = 0; |
2244 | ret->abs_funcdesc_refcount = 0; | |
2245 | ret->got_type = GOT_UNKNOWN; | |
37c644f2 AO |
2246 | } |
2247 | ||
2248 | return (struct bfd_hash_entry *) ret; | |
2249 | } | |
2250 | ||
2251 | /* Create an sh ELF linker hash table. */ | |
2252 | ||
2253 | static struct bfd_link_hash_table * | |
09fd220b | 2254 | sh_elf_link_hash_table_create (bfd *abfd) |
37c644f2 AO |
2255 | { |
2256 | struct elf_sh_link_hash_table *ret; | |
dc810e39 | 2257 | bfd_size_type amt = sizeof (struct elf_sh_link_hash_table); |
37c644f2 | 2258 | |
0e5de31a | 2259 | ret = (struct elf_sh_link_hash_table *) bfd_zmalloc (amt); |
37c644f2 AO |
2260 | if (ret == (struct elf_sh_link_hash_table *) NULL) |
2261 | return NULL; | |
2262 | ||
66eb6687 AM |
2263 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
2264 | sh_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
2265 | sizeof (struct elf_sh_link_hash_entry), |
2266 | SH_ELF_DATA)) | |
37c644f2 | 2267 | { |
e2d34d7d | 2268 | free (ret); |
37c644f2 AO |
2269 | return NULL; |
2270 | } | |
2271 | ||
55e6e397 | 2272 | ret->vxworks_p = vxworks_object_p (abfd); |
8e45593f | 2273 | ret->fdpic_p = fdpic_object_p (abfd); |
067653c5 | 2274 | |
37c644f2 AO |
2275 | return &ret->root.root; |
2276 | } | |
2277 | ||
8e45593f NC |
2278 | static bfd_boolean |
2279 | sh_elf_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2280 | struct bfd_link_info *info, asection *p) | |
2281 | { | |
2282 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
2283 | ||
2284 | /* Non-FDPIC binaries do not need dynamic symbols for sections. */ | |
2285 | if (!htab->fdpic_p) | |
2286 | return TRUE; | |
2287 | ||
2288 | /* We need dynamic symbols for every section, since segments can | |
2289 | relocate independently. */ | |
2290 | switch (elf_section_data (p)->this_hdr.sh_type) | |
2291 | { | |
2292 | case SHT_PROGBITS: | |
2293 | case SHT_NOBITS: | |
2294 | /* If sh_type is yet undecided, assume it could be | |
2295 | SHT_PROGBITS/SHT_NOBITS. */ | |
2296 | case SHT_NULL: | |
2297 | return FALSE; | |
2298 | ||
2299 | /* There shouldn't be section relative relocations | |
2300 | against any other section. */ | |
2301 | default: | |
2302 | return TRUE; | |
2303 | } | |
2304 | } | |
2305 | ||
067653c5 AM |
2306 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
2307 | shortcuts to them in our hash table. */ | |
2308 | ||
b34976b6 | 2309 | static bfd_boolean |
09fd220b | 2310 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
067653c5 AM |
2311 | { |
2312 | struct elf_sh_link_hash_table *htab; | |
2313 | ||
2314 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 2315 | return FALSE; |
067653c5 AM |
2316 | |
2317 | htab = sh_elf_hash_table (info); | |
4dfe6ac6 NC |
2318 | if (htab == NULL) |
2319 | return FALSE; | |
2320 | ||
3d4d4302 AM |
2321 | htab->sfuncdesc = bfd_make_section_anyway_with_flags (dynobj, ".got.funcdesc", |
2322 | (SEC_ALLOC | SEC_LOAD | |
2323 | | SEC_HAS_CONTENTS | |
2324 | | SEC_IN_MEMORY | |
2325 | | SEC_LINKER_CREATED)); | |
8e45593f NC |
2326 | if (htab->sfuncdesc == NULL |
2327 | || ! bfd_set_section_alignment (dynobj, htab->sfuncdesc, 2)) | |
2328 | return FALSE; | |
2329 | ||
3d4d4302 AM |
2330 | htab->srelfuncdesc = bfd_make_section_anyway_with_flags (dynobj, |
2331 | ".rela.got.funcdesc", | |
2332 | (SEC_ALLOC | SEC_LOAD | |
2333 | | SEC_HAS_CONTENTS | |
2334 | | SEC_IN_MEMORY | |
2335 | | SEC_LINKER_CREATED | |
2336 | | SEC_READONLY)); | |
8e45593f NC |
2337 | if (htab->srelfuncdesc == NULL |
2338 | || ! bfd_set_section_alignment (dynobj, htab->srelfuncdesc, 2)) | |
2339 | return FALSE; | |
2340 | ||
2341 | /* Also create .rofixup. */ | |
3d4d4302 AM |
2342 | htab->srofixup = bfd_make_section_anyway_with_flags (dynobj, ".rofixup", |
2343 | (SEC_ALLOC | SEC_LOAD | |
2344 | | SEC_HAS_CONTENTS | |
2345 | | SEC_IN_MEMORY | |
2346 | | SEC_LINKER_CREATED | |
2347 | | SEC_READONLY)); | |
8e45593f NC |
2348 | if (htab->srofixup == NULL |
2349 | || ! bfd_set_section_alignment (dynobj, htab->srofixup, 2)) | |
2350 | return FALSE; | |
2351 | ||
b34976b6 | 2352 | return TRUE; |
067653c5 AM |
2353 | } |
2354 | ||
37c644f2 AO |
2355 | /* Create dynamic sections when linking against a dynamic object. */ |
2356 | ||
b34976b6 | 2357 | static bfd_boolean |
09fd220b | 2358 | sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
37c644f2 | 2359 | { |
067653c5 | 2360 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 2361 | flagword flags, pltflags; |
91d6fa6a | 2362 | asection *s; |
9c5bfbb7 | 2363 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
37c644f2 AO |
2364 | int ptralign = 0; |
2365 | ||
2366 | switch (bed->s->arch_size) | |
2367 | { | |
2368 | case 32: | |
2369 | ptralign = 2; | |
2370 | break; | |
2371 | ||
2372 | case 64: | |
2373 | ptralign = 3; | |
2374 | break; | |
2375 | ||
2376 | default: | |
2377 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2378 | return FALSE; |
37c644f2 AO |
2379 | } |
2380 | ||
067653c5 | 2381 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
2382 | if (htab == NULL) |
2383 | return FALSE; | |
2384 | ||
35cad4c4 KK |
2385 | if (htab->root.dynamic_sections_created) |
2386 | return TRUE; | |
067653c5 | 2387 | |
37c644f2 AO |
2388 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and |
2389 | .rel[a].bss sections. */ | |
2390 | ||
2391 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2392 | | SEC_LINKER_CREATED); | |
2393 | ||
2394 | pltflags = flags; | |
2395 | pltflags |= SEC_CODE; | |
2396 | if (bed->plt_not_loaded) | |
2397 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
2398 | if (bed->plt_readonly) | |
2399 | pltflags |= SEC_READONLY; | |
2400 | ||
3d4d4302 | 2401 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
ce558b89 | 2402 | htab->root.splt = s; |
35cad4c4 | 2403 | if (s == NULL |
35cad4c4 KK |
2404 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
2405 | return FALSE; | |
37c644f2 AO |
2406 | |
2407 | if (bed->want_plt_sym) | |
2408 | { | |
2409 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
2410 | .plt section. */ | |
14a793b2 AM |
2411 | struct elf_link_hash_entry *h; |
2412 | struct bfd_link_hash_entry *bh = NULL; | |
2413 | ||
37c644f2 AO |
2414 | if (! (_bfd_generic_link_add_one_symbol |
2415 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
b34976b6 | 2416 | (bfd_vma) 0, (const char *) NULL, FALSE, |
14a793b2 | 2417 | get_elf_backend_data (abfd)->collect, &bh))) |
b34976b6 | 2418 | return FALSE; |
14a793b2 AM |
2419 | |
2420 | h = (struct elf_link_hash_entry *) bh; | |
f5385ebf | 2421 | h->def_regular = 1; |
37c644f2 | 2422 | h->type = STT_OBJECT; |
7325306f | 2423 | htab->root.hplt = h; |
37c644f2 | 2424 | |
0e1862bb | 2425 | if (bfd_link_pic (info) |
c152c796 | 2426 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2427 | return FALSE; |
37c644f2 AO |
2428 | } |
2429 | ||
3d4d4302 AM |
2430 | s = bfd_make_section_anyway_with_flags (abfd, |
2431 | bed->default_use_rela_p | |
2432 | ? ".rela.plt" : ".rel.plt", | |
2433 | flags | SEC_READONLY); | |
ce558b89 | 2434 | htab->root.srelplt = s; |
35cad4c4 | 2435 | if (s == NULL |
35cad4c4 KK |
2436 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
2437 | return FALSE; | |
37c644f2 | 2438 | |
ce558b89 | 2439 | if (htab->root.sgot == NULL |
2293c499 | 2440 | && !create_got_section (abfd, info)) |
b34976b6 | 2441 | return FALSE; |
37c644f2 | 2442 | |
37c644f2 AO |
2443 | if (bed->want_dynbss) |
2444 | { | |
2445 | /* The .dynbss section is a place to put symbols which are defined | |
2446 | by dynamic objects, are referenced by regular objects, and are | |
2447 | not functions. We must allocate space for them in the process | |
2448 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2449 | initialize them at run time. The linker script puts the .dynbss | |
2450 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2451 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2452 | SEC_ALLOC | SEC_LINKER_CREATED); | |
35cad4c4 | 2453 | htab->sdynbss = s; |
3496cb2a | 2454 | if (s == NULL) |
35cad4c4 | 2455 | return FALSE; |
37c644f2 AO |
2456 | |
2457 | /* The .rel[a].bss section holds copy relocs. This section is not | |
2458 | normally needed. We need to create it here, though, so that the | |
2459 | linker will map it to an output section. We can't just create it | |
2460 | only if we need it, because we will not know whether we need it | |
2461 | until we have seen all the input files, and the first time the | |
2462 | main linker code calls BFD after examining all the input files | |
2463 | (size_dynamic_sections) the input sections have already been | |
2464 | mapped to the output sections. If the section turns out not to | |
2465 | be needed, we can discard it later. We will never need this | |
2466 | section when generating a shared object, since they do not use | |
2467 | copy relocs. */ | |
0e1862bb | 2468 | if (! bfd_link_pic (info)) |
37c644f2 | 2469 | { |
3d4d4302 AM |
2470 | s = bfd_make_section_anyway_with_flags (abfd, |
2471 | (bed->default_use_rela_p | |
2472 | ? ".rela.bss" : ".rel.bss"), | |
2473 | flags | SEC_READONLY); | |
067653c5 | 2474 | htab->srelbss = s; |
37c644f2 | 2475 | if (s == NULL |
37c644f2 | 2476 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
b34976b6 | 2477 | return FALSE; |
37c644f2 AO |
2478 | } |
2479 | } | |
2480 | ||
55e6e397 RS |
2481 | if (htab->vxworks_p) |
2482 | { | |
2483 | if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
2484 | return FALSE; | |
2485 | } | |
2486 | ||
b34976b6 | 2487 | return TRUE; |
37c644f2 AO |
2488 | } |
2489 | \f | |
63c1f59d AM |
2490 | /* Find dynamic relocs for H that apply to read-only sections. */ |
2491 | ||
2492 | static asection * | |
2493 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
2494 | { | |
3bf083ed | 2495 | struct elf_dyn_relocs *p; |
63c1f59d AM |
2496 | |
2497 | for (p = sh_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
2498 | { | |
2499 | asection *s = p->sec->output_section; | |
2500 | ||
2501 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2502 | return p->sec; | |
2503 | } | |
2504 | return NULL; | |
2505 | } | |
2506 | ||
37c644f2 AO |
2507 | /* Adjust a symbol defined by a dynamic object and referenced by a |
2508 | regular object. The current definition is in some section of the | |
2509 | dynamic object, but we're not including those sections. We have to | |
2510 | change the definition to something the rest of the link can | |
2511 | understand. */ | |
2512 | ||
b34976b6 | 2513 | static bfd_boolean |
09fd220b KK |
2514 | sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
2515 | struct elf_link_hash_entry *h) | |
37c644f2 | 2516 | { |
067653c5 | 2517 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 2518 | asection *s; |
37c644f2 | 2519 | |
2293c499 | 2520 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
2521 | if (htab == NULL) |
2522 | return FALSE; | |
37c644f2 AO |
2523 | |
2524 | /* Make sure we know what is going on here. */ | |
2293c499 | 2525 | BFD_ASSERT (htab->root.dynobj != NULL |
f5385ebf | 2526 | && (h->needs_plt |
60d67dc8 | 2527 | || h->is_weakalias |
f5385ebf AM |
2528 | || (h->def_dynamic |
2529 | && h->ref_regular | |
2530 | && !h->def_regular))); | |
37c644f2 AO |
2531 | |
2532 | /* If this is a function, put it in the procedure linkage table. We | |
2533 | will fill in the contents of the procedure linkage table later, | |
2534 | when we know the address of the .got section. */ | |
2535 | if (h->type == STT_FUNC | |
f5385ebf | 2536 | || h->needs_plt) |
37c644f2 | 2537 | { |
067653c5 | 2538 | if (h->plt.refcount <= 0 |
3d85aebe KK |
2539 | || SYMBOL_CALLS_LOCAL (info, h) |
2540 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2541 | && h->root.type == bfd_link_hash_undefweak)) | |
37c644f2 AO |
2542 | { |
2543 | /* This case can occur if we saw a PLT reloc in an input | |
2544 | file, but the symbol was never referred to by a dynamic | |
2545 | object. In such a case, we don't actually need to build | |
2546 | a procedure linkage table, and we can just do a REL32 | |
2547 | reloc instead. */ | |
067653c5 | 2548 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 2549 | h->needs_plt = 0; |
37c644f2 AO |
2550 | } |
2551 | ||
b34976b6 | 2552 | return TRUE; |
37c644f2 | 2553 | } |
067653c5 AM |
2554 | else |
2555 | h->plt.offset = (bfd_vma) -1; | |
37c644f2 AO |
2556 | |
2557 | /* If this is a weak symbol, and there is a real definition, the | |
2558 | processor independent code will have arranged for us to see the | |
2559 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2560 | if (h->is_weakalias) |
37c644f2 | 2561 | { |
60d67dc8 AM |
2562 | struct elf_link_hash_entry *def = weakdef (h); |
2563 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2564 | h->root.u.def.section = def->root.u.def.section; | |
2565 | h->root.u.def.value = def->root.u.def.value; | |
04e534c3 | 2566 | if (info->nocopyreloc) |
60d67dc8 | 2567 | h->non_got_ref = def->non_got_ref; |
b34976b6 | 2568 | return TRUE; |
37c644f2 AO |
2569 | } |
2570 | ||
2571 | /* This is a reference to a symbol defined by a dynamic object which | |
2572 | is not a function. */ | |
2573 | ||
2574 | /* If we are creating a shared library, we must presume that the | |
2575 | only references to the symbol are via the global offset table. | |
2576 | For such cases we need not do anything here; the relocations will | |
2577 | be handled correctly by relocate_section. */ | |
0e1862bb | 2578 | if (bfd_link_pic (info)) |
b34976b6 | 2579 | return TRUE; |
37c644f2 AO |
2580 | |
2581 | /* If there are no references to this symbol that do not use the | |
2582 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 2583 | if (!h->non_got_ref) |
b34976b6 | 2584 | return TRUE; |
37c644f2 | 2585 | |
067653c5 | 2586 | /* If -z nocopyreloc was given, we won't generate them either. */ |
3bf083ed | 2587 | if (0 && info->nocopyreloc) |
067653c5 | 2588 | { |
f5385ebf | 2589 | h->non_got_ref = 0; |
b34976b6 | 2590 | return TRUE; |
067653c5 AM |
2591 | } |
2592 | ||
3bf083ed AM |
2593 | /* If we don't find any dynamic relocs in read-only sections, then |
2594 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2595 | if (0 && !readonly_dynrelocs (h)) | |
067653c5 | 2596 | { |
f5385ebf | 2597 | h->non_got_ref = 0; |
b34976b6 | 2598 | return TRUE; |
067653c5 AM |
2599 | } |
2600 | ||
37c644f2 AO |
2601 | /* We must allocate the symbol in our .dynbss section, which will |
2602 | become part of the .bss section of the executable. There will be | |
2603 | an entry for this symbol in the .dynsym section. The dynamic | |
2604 | object will contain position independent code, so all references | |
2605 | from the dynamic object to this symbol will go through the global | |
2606 | offset table. The dynamic linker will use the .dynsym entry to | |
2607 | determine the address it must put in the global offset table, so | |
2608 | both the dynamic object and the regular object will refer to the | |
2609 | same memory location for the variable. */ | |
2610 | ||
067653c5 | 2611 | s = htab->sdynbss; |
37c644f2 AO |
2612 | BFD_ASSERT (s != NULL); |
2613 | ||
2614 | /* We must generate a R_SH_COPY reloc to tell the dynamic linker to | |
2615 | copy the initial value out of the dynamic object and into the | |
2616 | runtime process image. We need to remember the offset into the | |
2617 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 2618 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
37c644f2 AO |
2619 | { |
2620 | asection *srel; | |
2621 | ||
067653c5 | 2622 | srel = htab->srelbss; |
37c644f2 | 2623 | BFD_ASSERT (srel != NULL); |
eea6121a | 2624 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 2625 | h->needs_copy = 1; |
37c644f2 AO |
2626 | } |
2627 | ||
6cabe1ea | 2628 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
37c644f2 AO |
2629 | } |
2630 | ||
067653c5 AM |
2631 | /* Allocate space in .plt, .got and associated reloc sections for |
2632 | dynamic relocs. */ | |
2633 | ||
b34976b6 | 2634 | static bfd_boolean |
09fd220b | 2635 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
067653c5 AM |
2636 | { |
2637 | struct bfd_link_info *info; | |
2638 | struct elf_sh_link_hash_table *htab; | |
2639 | struct elf_sh_link_hash_entry *eh; | |
3bf083ed | 2640 | struct elf_dyn_relocs *p; |
067653c5 AM |
2641 | |
2642 | if (h->root.type == bfd_link_hash_indirect) | |
b34976b6 | 2643 | return TRUE; |
067653c5 | 2644 | |
067653c5 AM |
2645 | info = (struct bfd_link_info *) inf; |
2646 | htab = sh_elf_hash_table (info); | |
4dfe6ac6 NC |
2647 | if (htab == NULL) |
2648 | return FALSE; | |
067653c5 | 2649 | |
4989d792 SC |
2650 | eh = (struct elf_sh_link_hash_entry *) h; |
2651 | if ((h->got.refcount > 0 | |
f5385ebf | 2652 | || h->forced_local) |
4989d792 SC |
2653 | && eh->gotplt_refcount > 0) |
2654 | { | |
2655 | /* The symbol has been forced local, or we have some direct got refs, | |
26e41594 | 2656 | so treat all the gotplt refs as got refs. */ |
4989d792 SC |
2657 | h->got.refcount += eh->gotplt_refcount; |
2658 | if (h->plt.refcount >= eh->gotplt_refcount) | |
2659 | h->plt.refcount -= eh->gotplt_refcount; | |
2660 | } | |
2661 | ||
067653c5 | 2662 | if (htab->root.dynamic_sections_created |
04e534c3 KK |
2663 | && h->plt.refcount > 0 |
2664 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2665 | || h->root.type != bfd_link_hash_undefweak)) | |
067653c5 AM |
2666 | { |
2667 | /* Make sure this symbol is output as a dynamic symbol. | |
2668 | Undefined weak syms won't yet be marked as dynamic. */ | |
2669 | if (h->dynindx == -1 | |
f5385ebf | 2670 | && !h->forced_local) |
067653c5 | 2671 | { |
c152c796 | 2672 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2673 | return FALSE; |
067653c5 AM |
2674 | } |
2675 | ||
0e1862bb | 2676 | if (bfd_link_pic (info) |
267fb3c1 | 2677 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) |
067653c5 | 2678 | { |
ce558b89 | 2679 | asection *s = htab->root.splt; |
8e45593f | 2680 | const struct elf_sh_plt_info *plt_info; |
067653c5 AM |
2681 | |
2682 | /* If this is the first .plt entry, make room for the special | |
2683 | first entry. */ | |
eea6121a | 2684 | if (s->size == 0) |
55e6e397 | 2685 | s->size += htab->plt_info->plt0_entry_size; |
067653c5 | 2686 | |
eea6121a | 2687 | h->plt.offset = s->size; |
067653c5 AM |
2688 | |
2689 | /* If this symbol is not defined in a regular file, and we are | |
2690 | not generating a shared library, then set the symbol to this | |
2691 | location in the .plt. This is required to make function | |
2692 | pointers compare as equal between the normal executable and | |
8e45593f NC |
2693 | the shared library. Skip this for FDPIC, since the |
2694 | function's address will be the address of the canonical | |
2695 | function descriptor. */ | |
0e1862bb | 2696 | if (!htab->fdpic_p && !bfd_link_pic (info) && !h->def_regular) |
067653c5 AM |
2697 | { |
2698 | h->root.u.def.section = s; | |
2699 | h->root.u.def.value = h->plt.offset; | |
2700 | } | |
2701 | ||
2702 | /* Make room for this entry. */ | |
8e45593f NC |
2703 | plt_info = htab->plt_info; |
2704 | if (plt_info->short_plt != NULL | |
2705 | && (get_plt_index (plt_info->short_plt, s->size) < MAX_SHORT_PLT)) | |
2706 | plt_info = plt_info->short_plt; | |
2707 | s->size += plt_info->symbol_entry_size; | |
067653c5 AM |
2708 | |
2709 | /* We also need to make an entry in the .got.plt section, which | |
2710 | will be placed in the .got section by the linker script. */ | |
8e45593f | 2711 | if (!htab->fdpic_p) |
ce558b89 | 2712 | htab->root.sgotplt->size += 4; |
8e45593f | 2713 | else |
ce558b89 | 2714 | htab->root.sgotplt->size += 8; |
067653c5 AM |
2715 | |
2716 | /* We also need to make an entry in the .rel.plt section. */ | |
ce558b89 | 2717 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); |
55e6e397 | 2718 | |
0e1862bb | 2719 | if (htab->vxworks_p && !bfd_link_pic (info)) |
55e6e397 RS |
2720 | { |
2721 | /* VxWorks executables have a second set of relocations | |
2722 | for each PLT entry. They go in a separate relocation | |
2723 | section, which is processed by the kernel loader. */ | |
2724 | ||
2725 | /* There is a relocation for the initial PLT entry: | |
2726 | an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */ | |
2727 | if (h->plt.offset == htab->plt_info->plt0_entry_size) | |
2728 | htab->srelplt2->size += sizeof (Elf32_External_Rela); | |
2729 | ||
2730 | /* There are two extra relocations for each subsequent | |
2731 | PLT entry: an R_SH_DIR32 relocation for the GOT entry, | |
2732 | and an R_SH_DIR32 relocation for the PLT entry. */ | |
2733 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2; | |
2734 | } | |
067653c5 AM |
2735 | } |
2736 | else | |
2737 | { | |
2738 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2739 | h->needs_plt = 0; |
067653c5 AM |
2740 | } |
2741 | } | |
2742 | else | |
2743 | { | |
2744 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2745 | h->needs_plt = 0; |
067653c5 AM |
2746 | } |
2747 | ||
2748 | if (h->got.refcount > 0) | |
2749 | { | |
2750 | asection *s; | |
b34976b6 | 2751 | bfd_boolean dyn; |
85e02784 | 2752 | enum got_type got_type = sh_elf_hash_entry (h)->got_type; |
067653c5 AM |
2753 | |
2754 | /* Make sure this symbol is output as a dynamic symbol. | |
2755 | Undefined weak syms won't yet be marked as dynamic. */ | |
2756 | if (h->dynindx == -1 | |
f5385ebf | 2757 | && !h->forced_local) |
067653c5 | 2758 | { |
c152c796 | 2759 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2760 | return FALSE; |
067653c5 AM |
2761 | } |
2762 | ||
ce558b89 | 2763 | s = htab->root.sgot; |
eea6121a AM |
2764 | h->got.offset = s->size; |
2765 | s->size += 4; | |
3376eaf5 | 2766 | /* R_SH_TLS_GD needs 2 consecutive GOT slots. */ |
8e45593f | 2767 | if (got_type == GOT_TLS_GD) |
eea6121a | 2768 | s->size += 4; |
067653c5 | 2769 | dyn = htab->root.dynamic_sections_created; |
8e45593f NC |
2770 | if (!dyn) |
2771 | { | |
2772 | /* No dynamic relocations required. */ | |
0e1862bb | 2773 | if (htab->fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
2774 | && h->root.type != bfd_link_hash_undefweak |
2775 | && (got_type == GOT_NORMAL || got_type == GOT_FUNCDESC)) | |
2776 | htab->srofixup->size += 4; | |
2777 | } | |
87458ed2 | 2778 | /* No dynamic relocations required when IE->LE conversion happens. */ |
0e1862bb L |
2779 | else if (got_type == GOT_TLS_IE |
2780 | && !h->def_dynamic | |
2781 | && !bfd_link_pic (info)) | |
87458ed2 | 2782 | ; |
267fb3c1 | 2783 | /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic, |
3376eaf5 | 2784 | R_SH_TLS_GD needs one if local symbol and two if global. */ |
8e45593f NC |
2785 | else if ((got_type == GOT_TLS_GD && h->dynindx == -1) |
2786 | || got_type == GOT_TLS_IE) | |
ce558b89 | 2787 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f | 2788 | else if (got_type == GOT_TLS_GD) |
ce558b89 | 2789 | htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela); |
8e45593f NC |
2790 | else if (got_type == GOT_FUNCDESC) |
2791 | { | |
0e1862bb | 2792 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
2793 | htab->srofixup->size += 4; |
2794 | else | |
ce558b89 | 2795 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f | 2796 | } |
04e534c3 KK |
2797 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
2798 | || h->root.type != bfd_link_hash_undefweak) | |
0e1862bb | 2799 | && (bfd_link_pic (info) |
04e534c3 | 2800 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) |
ce558b89 | 2801 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
0e1862bb L |
2802 | else if (htab->fdpic_p |
2803 | && !bfd_link_pic (info) | |
2804 | && got_type == GOT_NORMAL | |
8e45593f NC |
2805 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
2806 | || h->root.type != bfd_link_hash_undefweak)) | |
2807 | htab->srofixup->size += 4; | |
067653c5 AM |
2808 | } |
2809 | else | |
2810 | h->got.offset = (bfd_vma) -1; | |
2811 | ||
8e45593f NC |
2812 | /* Allocate space for any dynamic relocations to function |
2813 | descriptors, canonical or otherwise. We need to relocate the | |
2814 | reference unless it resolves to zero, which only happens for | |
2815 | undefined weak symbols (either non-default visibility, or when | |
2816 | static linking). Any GOT slot is accounted for elsewhere. */ | |
2817 | if (eh->abs_funcdesc_refcount > 0 | |
2818 | && (h->root.type != bfd_link_hash_undefweak | |
2819 | || (htab->root.dynamic_sections_created | |
2820 | && ! SYMBOL_CALLS_LOCAL (info, h)))) | |
2821 | { | |
0e1862bb | 2822 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
2823 | htab->srofixup->size += eh->abs_funcdesc_refcount * 4; |
2824 | else | |
ce558b89 | 2825 | htab->root.srelgot->size |
8e45593f NC |
2826 | += eh->abs_funcdesc_refcount * sizeof (Elf32_External_Rela); |
2827 | } | |
2828 | ||
2829 | /* We must allocate a function descriptor if there are references to | |
2830 | a canonical descriptor (R_SH_GOTFUNCDESC or R_SH_FUNCDESC) and | |
2831 | the dynamic linker isn't going to allocate it. None of this | |
2832 | applies if we already created one in .got.plt, but if the | |
2833 | canonical function descriptor can be in this object, there | |
2834 | won't be a PLT entry at all. */ | |
2835 | if ((eh->funcdesc.refcount > 0 | |
2836 | || (h->got.offset != MINUS_ONE && eh->got_type == GOT_FUNCDESC)) | |
2837 | && h->root.type != bfd_link_hash_undefweak | |
2838 | && SYMBOL_FUNCDESC_LOCAL (info, h)) | |
2839 | { | |
2840 | /* Make room for this function descriptor. */ | |
2841 | eh->funcdesc.offset = htab->sfuncdesc->size; | |
2842 | htab->sfuncdesc->size += 8; | |
2843 | ||
2844 | /* We will need a relocation or two fixups to initialize the | |
2845 | function descriptor, so allocate those too. */ | |
0e1862bb | 2846 | if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h)) |
8e45593f NC |
2847 | htab->srofixup->size += 8; |
2848 | else | |
2849 | htab->srelfuncdesc->size += sizeof (Elf32_External_Rela); | |
2850 | } | |
2851 | ||
067653c5 | 2852 | if (eh->dyn_relocs == NULL) |
b34976b6 | 2853 | return TRUE; |
067653c5 AM |
2854 | |
2855 | /* In the shared -Bsymbolic case, discard space allocated for | |
2856 | dynamic pc-relative relocs against symbols which turn out to be | |
2857 | defined in regular objects. For the normal shared case, discard | |
2858 | space for pc-relative relocs that have become local due to symbol | |
2859 | visibility changes. */ | |
2860 | ||
0e1862bb | 2861 | if (bfd_link_pic (info)) |
067653c5 | 2862 | { |
3d85aebe | 2863 | if (SYMBOL_CALLS_LOCAL (info, h)) |
067653c5 | 2864 | { |
3bf083ed | 2865 | struct elf_dyn_relocs **pp; |
067653c5 AM |
2866 | |
2867 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2868 | { | |
2869 | p->count -= p->pc_count; | |
2870 | p->pc_count = 0; | |
2871 | if (p->count == 0) | |
2872 | *pp = p->next; | |
2873 | else | |
2874 | pp = &p->next; | |
2875 | } | |
2876 | } | |
04e534c3 | 2877 | |
3348747a NS |
2878 | if (htab->vxworks_p) |
2879 | { | |
3bf083ed | 2880 | struct elf_dyn_relocs **pp; |
3348747a NS |
2881 | |
2882 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2883 | { | |
2884 | if (strcmp (p->sec->output_section->name, ".tls_vars") == 0) | |
2885 | *pp = p->next; | |
2886 | else | |
2887 | pp = &p->next; | |
2888 | } | |
2889 | } | |
2890 | ||
04e534c3 KK |
2891 | /* Also discard relocs on undefined weak syms with non-default |
2892 | visibility. */ | |
22d606e9 | 2893 | if (eh->dyn_relocs != NULL |
04e534c3 | 2894 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 | 2895 | { |
6ee6e05a L |
2896 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2897 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
22d606e9 AM |
2898 | eh->dyn_relocs = NULL; |
2899 | ||
2900 | /* Make sure undefined weak symbols are output as a dynamic | |
2901 | symbol in PIEs. */ | |
2902 | else if (h->dynindx == -1 | |
2903 | && !h->forced_local) | |
2904 | { | |
2905 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2906 | return FALSE; | |
2907 | } | |
2908 | } | |
067653c5 AM |
2909 | } |
2910 | else | |
2911 | { | |
2912 | /* For the non-shared case, discard space for relocs against | |
2913 | symbols which turn out to need copy relocs or are not | |
2914 | dynamic. */ | |
2915 | ||
f5385ebf AM |
2916 | if (!h->non_got_ref |
2917 | && ((h->def_dynamic | |
2918 | && !h->def_regular) | |
067653c5 AM |
2919 | || (htab->root.dynamic_sections_created |
2920 | && (h->root.type == bfd_link_hash_undefweak | |
2921 | || h->root.type == bfd_link_hash_undefined)))) | |
2922 | { | |
2923 | /* Make sure this symbol is output as a dynamic symbol. | |
2924 | Undefined weak syms won't yet be marked as dynamic. */ | |
2925 | if (h->dynindx == -1 | |
f5385ebf | 2926 | && !h->forced_local) |
067653c5 | 2927 | { |
c152c796 | 2928 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2929 | return FALSE; |
067653c5 AM |
2930 | } |
2931 | ||
2932 | /* If that succeeded, we know we'll be keeping all the | |
2933 | relocs. */ | |
2934 | if (h->dynindx != -1) | |
2935 | goto keep; | |
2936 | } | |
2937 | ||
2938 | eh->dyn_relocs = NULL; | |
2939 | ||
2940 | keep: ; | |
2941 | } | |
2942 | ||
2943 | /* Finally, allocate space. */ | |
2944 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2945 | { | |
2946 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2947 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
8e45593f NC |
2948 | |
2949 | /* If we need relocations, we do not need fixups. */ | |
0e1862bb | 2950 | if (htab->fdpic_p && !bfd_link_pic (info)) |
8e45593f | 2951 | htab->srofixup->size -= 4 * (p->count - p->pc_count); |
067653c5 AM |
2952 | } |
2953 | ||
b34976b6 | 2954 | return TRUE; |
067653c5 AM |
2955 | } |
2956 | ||
63c1f59d AM |
2957 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
2958 | read-only sections. */ | |
067653c5 | 2959 | |
b34976b6 | 2960 | static bfd_boolean |
63c1f59d | 2961 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
067653c5 | 2962 | { |
63c1f59d | 2963 | asection *sec; |
067653c5 | 2964 | |
63c1f59d AM |
2965 | if (h->root.type == bfd_link_hash_indirect) |
2966 | return TRUE; | |
067653c5 | 2967 | |
63c1f59d AM |
2968 | sec = readonly_dynrelocs (h); |
2969 | if (sec != NULL) | |
2970 | { | |
2971 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
067653c5 | 2972 | |
63c1f59d AM |
2973 | info->flags |= DF_TEXTREL; |
2974 | info->callbacks->minfo | |
c1c8c1ef | 2975 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 2976 | sec->owner, h->root.root.string, sec); |
a72f95f7 | 2977 | |
63c1f59d AM |
2978 | /* Not an error, just cut short the traversal. */ |
2979 | return FALSE; | |
067653c5 | 2980 | } |
b34976b6 | 2981 | return TRUE; |
067653c5 AM |
2982 | } |
2983 | ||
55e6e397 RS |
2984 | /* This function is called after all the input files have been read, |
2985 | and the input sections have been assigned to output sections. | |
2986 | It's a convenient place to determine the PLT style. */ | |
2987 | ||
2988 | static bfd_boolean | |
2989 | sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) | |
2990 | { | |
0e1862bb L |
2991 | sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd, |
2992 | bfd_link_pic (info)); | |
8e45593f | 2993 | |
0e1862bb | 2994 | if (sh_elf_hash_table (info)->fdpic_p && !bfd_link_relocatable (info) |
04c3a755 NS |
2995 | && !bfd_elf_stack_segment_size (output_bfd, info, |
2996 | "__stacksize", DEFAULT_STACK_SIZE)) | |
2997 | return FALSE; | |
55e6e397 RS |
2998 | return TRUE; |
2999 | } | |
3000 | ||
37c644f2 AO |
3001 | /* Set the sizes of the dynamic sections. */ |
3002 | ||
b34976b6 | 3003 | static bfd_boolean |
09fd220b KK |
3004 | sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
3005 | struct bfd_link_info *info) | |
37c644f2 | 3006 | { |
067653c5 | 3007 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
3008 | bfd *dynobj; |
3009 | asection *s; | |
b34976b6 | 3010 | bfd_boolean relocs; |
067653c5 | 3011 | bfd *ibfd; |
37c644f2 | 3012 | |
067653c5 | 3013 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
3014 | if (htab == NULL) |
3015 | return FALSE; | |
3016 | ||
067653c5 | 3017 | dynobj = htab->root.dynobj; |
37c644f2 AO |
3018 | BFD_ASSERT (dynobj != NULL); |
3019 | ||
067653c5 | 3020 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
3021 | { |
3022 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 3023 | if (bfd_link_executable (info) && !info->nointerp) |
37c644f2 | 3024 | { |
3d4d4302 | 3025 | s = bfd_get_linker_section (dynobj, ".interp"); |
37c644f2 | 3026 | BFD_ASSERT (s != NULL); |
eea6121a | 3027 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
37c644f2 AO |
3028 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
3029 | } | |
3030 | } | |
37c644f2 | 3031 | |
067653c5 AM |
3032 | /* Set up .got offsets for local syms, and space for local dynamic |
3033 | relocs. */ | |
c72f2fb2 | 3034 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
37c644f2 | 3035 | { |
067653c5 AM |
3036 | bfd_signed_vma *local_got; |
3037 | bfd_signed_vma *end_local_got; | |
8e45593f NC |
3038 | union gotref *local_funcdesc, *end_local_funcdesc; |
3039 | char *local_got_type; | |
067653c5 AM |
3040 | bfd_size_type locsymcount; |
3041 | Elf_Internal_Shdr *symtab_hdr; | |
3042 | asection *srel; | |
37c644f2 | 3043 | |
0ffa91dd | 3044 | if (! is_sh_elf (ibfd)) |
37c644f2 AO |
3045 | continue; |
3046 | ||
067653c5 | 3047 | for (s = ibfd->sections; s != NULL; s = s->next) |
37c644f2 | 3048 | { |
3bf083ed | 3049 | struct elf_dyn_relocs *p; |
067653c5 | 3050 | |
3bf083ed | 3051 | for (p = ((struct elf_dyn_relocs *) |
067653c5 AM |
3052 | elf_section_data (s)->local_dynrel); |
3053 | p != NULL; | |
3054 | p = p->next) | |
37c644f2 | 3055 | { |
067653c5 AM |
3056 | if (! bfd_is_abs_section (p->sec) |
3057 | && bfd_is_abs_section (p->sec->output_section)) | |
3058 | { | |
3059 | /* Input section has been discarded, either because | |
3060 | it is a copy of a linkonce section or due to | |
3061 | linker script /DISCARD/, so we'll be discarding | |
3062 | the relocs too. */ | |
3063 | } | |
3348747a NS |
3064 | else if (htab->vxworks_p |
3065 | && strcmp (p->sec->output_section->name, | |
3066 | ".tls_vars") == 0) | |
3067 | { | |
3068 | /* Relocations in vxworks .tls_vars sections are | |
3069 | handled specially by the loader. */ | |
3070 | } | |
067653c5 AM |
3071 | else if (p->count != 0) |
3072 | { | |
3073 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 3074 | srel->size += p->count * sizeof (Elf32_External_Rela); |
067653c5 | 3075 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
a72f95f7 L |
3076 | { |
3077 | info->flags |= DF_TEXTREL; | |
871b3ab2 | 3078 | info->callbacks->minfo (_("%pB: dynamic relocation in read-only section `%pA'\n"), |
a72f95f7 L |
3079 | p->sec->owner, p->sec); |
3080 | } | |
8e45593f NC |
3081 | |
3082 | /* If we need relocations, we do not need fixups. */ | |
0e1862bb | 3083 | if (htab->fdpic_p && !bfd_link_pic (info)) |
8e45593f | 3084 | htab->srofixup->size -= 4 * (p->count - p->pc_count); |
067653c5 | 3085 | } |
37c644f2 AO |
3086 | } |
3087 | } | |
067653c5 | 3088 | |
0ffa91dd | 3089 | symtab_hdr = &elf_symtab_hdr (ibfd); |
067653c5 | 3090 | locsymcount = symtab_hdr->sh_info; |
ce558b89 AM |
3091 | s = htab->root.sgot; |
3092 | srel = htab->root.srelgot; | |
8e45593f NC |
3093 | |
3094 | local_got = elf_local_got_refcounts (ibfd); | |
3095 | if (local_got) | |
37c644f2 | 3096 | { |
8e45593f NC |
3097 | end_local_got = local_got + locsymcount; |
3098 | local_got_type = sh_elf_local_got_type (ibfd); | |
3099 | local_funcdesc = sh_elf_local_funcdesc (ibfd); | |
3100 | for (; local_got < end_local_got; ++local_got) | |
37c644f2 | 3101 | { |
8e45593f NC |
3102 | if (*local_got > 0) |
3103 | { | |
3104 | *local_got = s->size; | |
3105 | s->size += 4; | |
3106 | if (*local_got_type == GOT_TLS_GD) | |
3107 | s->size += 4; | |
0e1862bb | 3108 | if (bfd_link_pic (info)) |
8e45593f NC |
3109 | srel->size += sizeof (Elf32_External_Rela); |
3110 | else | |
3111 | htab->srofixup->size += 4; | |
3112 | ||
3113 | if (*local_got_type == GOT_FUNCDESC) | |
3114 | { | |
3115 | if (local_funcdesc == NULL) | |
3116 | { | |
3117 | bfd_size_type size; | |
3118 | ||
3119 | size = locsymcount * sizeof (union gotref); | |
3120 | local_funcdesc = (union gotref *) bfd_zalloc (ibfd, | |
3121 | size); | |
3122 | if (local_funcdesc == NULL) | |
3123 | return FALSE; | |
3124 | sh_elf_local_funcdesc (ibfd) = local_funcdesc; | |
3125 | local_funcdesc += (local_got | |
3126 | - elf_local_got_refcounts (ibfd)); | |
3127 | } | |
3128 | local_funcdesc->refcount++; | |
3129 | ++local_funcdesc; | |
3130 | } | |
3131 | } | |
3132 | else | |
3133 | *local_got = (bfd_vma) -1; | |
3134 | ++local_got_type; | |
3135 | } | |
3136 | } | |
3137 | ||
3138 | local_funcdesc = sh_elf_local_funcdesc (ibfd); | |
3139 | if (local_funcdesc) | |
3140 | { | |
3141 | end_local_funcdesc = local_funcdesc + locsymcount; | |
3142 | ||
3143 | for (; local_funcdesc < end_local_funcdesc; ++local_funcdesc) | |
3144 | { | |
3145 | if (local_funcdesc->refcount > 0) | |
3146 | { | |
3147 | local_funcdesc->offset = htab->sfuncdesc->size; | |
3148 | htab->sfuncdesc->size += 8; | |
0e1862bb | 3149 | if (!bfd_link_pic (info)) |
8e45593f NC |
3150 | htab->srofixup->size += 8; |
3151 | else | |
3152 | htab->srelfuncdesc->size += sizeof (Elf32_External_Rela); | |
3153 | } | |
3154 | else | |
3155 | local_funcdesc->offset = MINUS_ONE; | |
37c644f2 | 3156 | } |
37c644f2 | 3157 | } |
8e45593f | 3158 | |
067653c5 AM |
3159 | } |
3160 | ||
3376eaf5 KK |
3161 | if (htab->tls_ldm_got.refcount > 0) |
3162 | { | |
3163 | /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32 | |
3164 | relocs. */ | |
ce558b89 AM |
3165 | htab->tls_ldm_got.offset = htab->root.sgot->size; |
3166 | htab->root.sgot->size += 8; | |
3167 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
3168 | } |
3169 | else | |
3170 | htab->tls_ldm_got.offset = -1; | |
3171 | ||
8e45593f NC |
3172 | /* Only the reserved entries should be present. For FDPIC, they go at |
3173 | the end of .got.plt. */ | |
3174 | if (htab->fdpic_p) | |
3175 | { | |
ce558b89 AM |
3176 | BFD_ASSERT (htab->root.sgotplt && htab->root.sgotplt->size == 12); |
3177 | htab->root.sgotplt->size = 0; | |
8e45593f NC |
3178 | } |
3179 | ||
067653c5 AM |
3180 | /* Allocate global sym .plt and .got entries, and space for global |
3181 | sym dynamic relocs. */ | |
09fd220b | 3182 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); |
067653c5 | 3183 | |
8e45593f NC |
3184 | /* Move the reserved entries and the _GLOBAL_OFFSET_TABLE_ symbol to the |
3185 | end of the FDPIC .got.plt. */ | |
3186 | if (htab->fdpic_p) | |
3187 | { | |
ce558b89 AM |
3188 | htab->root.hgot->root.u.def.value = htab->root.sgotplt->size; |
3189 | htab->root.sgotplt->size += 12; | |
8e45593f NC |
3190 | } |
3191 | ||
3192 | /* At the very end of the .rofixup section is a pointer to the GOT. */ | |
3193 | if (htab->fdpic_p && htab->srofixup != NULL) | |
3194 | htab->srofixup->size += 4; | |
3195 | ||
067653c5 AM |
3196 | /* We now have determined the sizes of the various dynamic sections. |
3197 | Allocate memory for them. */ | |
b34976b6 | 3198 | relocs = FALSE; |
067653c5 AM |
3199 | for (s = dynobj->sections; s != NULL; s = s->next) |
3200 | { | |
3201 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3202 | continue; | |
3203 | ||
ce558b89 AM |
3204 | if (s == htab->root.splt |
3205 | || s == htab->root.sgot | |
3206 | || s == htab->root.sgotplt | |
8e45593f NC |
3207 | || s == htab->sfuncdesc |
3208 | || s == htab->srofixup | |
c456f082 | 3209 | || s == htab->sdynbss) |
067653c5 AM |
3210 | { |
3211 | /* Strip this section if we don't need it; see the | |
3212 | comment below. */ | |
3213 | } | |
0112cd26 | 3214 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
067653c5 | 3215 | { |
ce558b89 | 3216 | if (s->size != 0 && s != htab->root.srelplt && s != htab->srelplt2) |
b34976b6 | 3217 | relocs = TRUE; |
067653c5 AM |
3218 | |
3219 | /* We use the reloc_count field as a counter if we need | |
3220 | to copy relocs into the output file. */ | |
3221 | s->reloc_count = 0; | |
3222 | } | |
3223 | else | |
37c644f2 AO |
3224 | { |
3225 | /* It's not one of our sections, so don't allocate space. */ | |
3226 | continue; | |
3227 | } | |
3228 | ||
eea6121a | 3229 | if (s->size == 0) |
37c644f2 | 3230 | { |
067653c5 AM |
3231 | /* If we don't need this section, strip it from the |
3232 | output file. This is mostly to handle .rela.bss and | |
3233 | .rela.plt. We must create both sections in | |
3234 | create_dynamic_sections, because they must be created | |
3235 | before the linker maps input sections to output | |
3236 | sections. The linker does that before | |
3237 | adjust_dynamic_symbol is called, and it is that | |
3238 | function which decides whether anything needs to go | |
3239 | into these sections. */ | |
3240 | ||
8423293d | 3241 | s->flags |= SEC_EXCLUDE; |
37c644f2 AO |
3242 | continue; |
3243 | } | |
3244 | ||
c456f082 AM |
3245 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
3246 | continue; | |
3247 | ||
067653c5 AM |
3248 | /* Allocate memory for the section contents. We use bfd_zalloc |
3249 | here in case unused entries are not reclaimed before the | |
3250 | section's contents are written out. This should not happen, | |
3251 | but this way if it does, we get a R_SH_NONE reloc instead | |
3252 | of garbage. */ | |
eea6121a | 3253 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
067653c5 | 3254 | if (s->contents == NULL) |
b34976b6 | 3255 | return FALSE; |
37c644f2 AO |
3256 | } |
3257 | ||
067653c5 | 3258 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
3259 | { |
3260 | /* Add some entries to the .dynamic section. We fill in the | |
3261 | values later, in sh_elf_finish_dynamic_sections, but we | |
3262 | must add the entries now so that we get the correct size for | |
3263 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3264 | dynamic linker and used by the debugger. */ | |
dc810e39 | 3265 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 3266 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 3267 | |
0e1862bb | 3268 | if (bfd_link_executable (info)) |
37c644f2 | 3269 | { |
067653c5 | 3270 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 3271 | return FALSE; |
37c644f2 AO |
3272 | } |
3273 | ||
ce558b89 | 3274 | if (htab->root.splt->size != 0) |
37c644f2 | 3275 | { |
067653c5 AM |
3276 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
3277 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
3278 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3279 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 3280 | return FALSE; |
37c644f2 | 3281 | } |
b4b0e149 | 3282 | else if ((elf_elfheader (output_bfd)->e_flags & EF_SH_FDPIC)) |
8e45593f NC |
3283 | { |
3284 | if (! add_dynamic_entry (DT_PLTGOT, 0)) | |
3285 | return FALSE; | |
3286 | } | |
37c644f2 AO |
3287 | |
3288 | if (relocs) | |
3289 | { | |
067653c5 AM |
3290 | if (! add_dynamic_entry (DT_RELA, 0) |
3291 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
3292 | || ! add_dynamic_entry (DT_RELAENT, | |
3293 | sizeof (Elf32_External_Rela))) | |
b34976b6 | 3294 | return FALSE; |
37c644f2 | 3295 | |
067653c5 AM |
3296 | /* If any dynamic relocs apply to a read-only section, |
3297 | then we need a DT_TEXTREL entry. */ | |
3298 | if ((info->flags & DF_TEXTREL) == 0) | |
63c1f59d | 3299 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); |
067653c5 AM |
3300 | |
3301 | if ((info->flags & DF_TEXTREL) != 0) | |
3302 | { | |
3303 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 3304 | return FALSE; |
067653c5 | 3305 | } |
37c644f2 | 3306 | } |
7a2b07ff NS |
3307 | if (htab->vxworks_p |
3308 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
3309 | return FALSE; | |
37c644f2 | 3310 | } |
dc810e39 | 3311 | #undef add_dynamic_entry |
37c644f2 | 3312 | |
b34976b6 | 3313 | return TRUE; |
37c644f2 | 3314 | } |
37c644f2 | 3315 | \f |
8e45593f | 3316 | /* Add a dynamic relocation to the SRELOC section. */ |
37c644f2 | 3317 | |
8e45593f NC |
3318 | inline static bfd_vma |
3319 | sh_elf_add_dyn_reloc (bfd *output_bfd, asection *sreloc, bfd_vma offset, | |
3320 | int reloc_type, long dynindx, bfd_vma addend) | |
37c644f2 | 3321 | { |
8e45593f NC |
3322 | Elf_Internal_Rela outrel; |
3323 | bfd_vma reloc_offset; | |
37c644f2 | 3324 | |
8e45593f NC |
3325 | outrel.r_offset = offset; |
3326 | outrel.r_info = ELF32_R_INFO (dynindx, reloc_type); | |
3327 | outrel.r_addend = addend; | |
0ffa91dd | 3328 | |
8e45593f NC |
3329 | reloc_offset = sreloc->reloc_count * sizeof (Elf32_External_Rela); |
3330 | BFD_ASSERT (reloc_offset < sreloc->size); | |
3331 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3332 | sreloc->contents + reloc_offset); | |
3333 | sreloc->reloc_count++; | |
37c644f2 | 3334 | |
8e45593f NC |
3335 | return reloc_offset; |
3336 | } | |
37c644f2 | 3337 | |
8e45593f | 3338 | /* Add an FDPIC read-only fixup. */ |
37c644f2 | 3339 | |
8e45593f NC |
3340 | inline static void |
3341 | sh_elf_add_rofixup (bfd *output_bfd, asection *srofixup, bfd_vma offset) | |
3342 | { | |
3343 | bfd_vma fixup_offset; | |
3344 | ||
3345 | fixup_offset = srofixup->reloc_count++ * 4; | |
3346 | BFD_ASSERT (fixup_offset < srofixup->size); | |
3347 | bfd_put_32 (output_bfd, offset, srofixup->contents + fixup_offset); | |
3348 | } | |
3349 | ||
3350 | /* Return the offset of the generated .got section from the | |
3351 | _GLOBAL_OFFSET_TABLE_ symbol. */ | |
3352 | ||
3353 | static bfd_signed_vma | |
3354 | sh_elf_got_offset (struct elf_sh_link_hash_table *htab) | |
3355 | { | |
ce558b89 | 3356 | return (htab->root.sgot->output_offset - htab->root.sgotplt->output_offset |
8e45593f NC |
3357 | - htab->root.hgot->root.u.def.value); |
3358 | } | |
3359 | ||
3360 | /* Find the segment number in which OSEC, and output section, is | |
3361 | located. */ | |
3362 | ||
3363 | static unsigned | |
3364 | sh_elf_osec_to_segment (bfd *output_bfd, asection *osec) | |
3365 | { | |
3d301fdc AM |
3366 | Elf_Internal_Phdr *p = NULL; |
3367 | ||
5bc8cb6f NC |
3368 | if (output_bfd->xvec->flavour == bfd_target_elf_flavour |
3369 | /* PR ld/17110: Do not look for output segments in an input bfd. */ | |
3370 | && output_bfd->direction != read_direction) | |
3d301fdc | 3371 | p = _bfd_elf_find_segment_containing_section (output_bfd, osec); |
8e45593f NC |
3372 | |
3373 | /* FIXME: Nothing ever says what this index is relative to. The kernel | |
3374 | supplies data in terms of the number of load segments but this is | |
3375 | a phdr index and the first phdr may not be a load segment. */ | |
3376 | return (p != NULL) ? p - elf_tdata (output_bfd)->phdr : -1; | |
3377 | } | |
3378 | ||
3379 | static bfd_boolean | |
3380 | sh_elf_osec_readonly_p (bfd *output_bfd, asection *osec) | |
3381 | { | |
3382 | unsigned seg = sh_elf_osec_to_segment (output_bfd, osec); | |
3383 | ||
3d301fdc AM |
3384 | return (seg != (unsigned) -1 |
3385 | && ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W)); | |
8e45593f NC |
3386 | } |
3387 | ||
3388 | /* Generate the initial contents of a local function descriptor, along | |
3389 | with any relocations or fixups required. */ | |
3390 | static bfd_boolean | |
3391 | sh_elf_initialize_funcdesc (bfd *output_bfd, | |
3392 | struct bfd_link_info *info, | |
3393 | struct elf_link_hash_entry *h, | |
3394 | bfd_vma offset, | |
3395 | asection *section, | |
3396 | bfd_vma value) | |
3397 | { | |
3398 | struct elf_sh_link_hash_table *htab; | |
3399 | int dynindx; | |
3400 | bfd_vma addr, seg; | |
3401 | ||
3402 | htab = sh_elf_hash_table (info); | |
3403 | ||
3404 | /* FIXME: The ABI says that the offset to the function goes in the | |
3405 | descriptor, along with the segment index. We're RELA, so it could | |
3406 | go in the reloc instead... */ | |
3407 | ||
3408 | if (h != NULL && SYMBOL_CALLS_LOCAL (info, h)) | |
3409 | { | |
3410 | section = h->root.u.def.section; | |
3411 | value = h->root.u.def.value; | |
3412 | } | |
3413 | ||
3414 | if (h == NULL || SYMBOL_CALLS_LOCAL (info, h)) | |
3415 | { | |
3416 | dynindx = elf_section_data (section->output_section)->dynindx; | |
3417 | addr = value + section->output_offset; | |
3418 | seg = sh_elf_osec_to_segment (output_bfd, section->output_section); | |
3419 | } | |
3420 | else | |
3421 | { | |
3422 | BFD_ASSERT (h->dynindx != -1); | |
3423 | dynindx = h->dynindx; | |
3424 | addr = seg = 0; | |
3425 | } | |
3426 | ||
0e1862bb | 3427 | if (!bfd_link_pic (info) && SYMBOL_CALLS_LOCAL (info, h)) |
8e45593f NC |
3428 | { |
3429 | if (h == NULL || h->root.type != bfd_link_hash_undefweak) | |
3430 | { | |
3431 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
3432 | offset | |
3433 | + htab->sfuncdesc->output_section->vma | |
3434 | + htab->sfuncdesc->output_offset); | |
3435 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
3436 | offset + 4 | |
3437 | + htab->sfuncdesc->output_section->vma | |
3438 | + htab->sfuncdesc->output_offset); | |
3439 | } | |
3440 | ||
3441 | /* There are no dynamic relocations so fill in the final | |
3442 | address and gp value (barring fixups). */ | |
3443 | addr += section->output_section->vma; | |
3444 | seg = htab->root.hgot->root.u.def.value | |
3445 | + htab->root.hgot->root.u.def.section->output_section->vma | |
3446 | + htab->root.hgot->root.u.def.section->output_offset; | |
3447 | } | |
3448 | else | |
3449 | sh_elf_add_dyn_reloc (output_bfd, htab->srelfuncdesc, | |
3450 | offset | |
3451 | + htab->sfuncdesc->output_section->vma | |
3452 | + htab->sfuncdesc->output_offset, | |
3453 | R_SH_FUNCDESC_VALUE, dynindx, 0); | |
3454 | ||
3455 | bfd_put_32 (output_bfd, addr, htab->sfuncdesc->contents + offset); | |
3456 | bfd_put_32 (output_bfd, seg, htab->sfuncdesc->contents + offset + 4); | |
3457 | ||
3458 | return TRUE; | |
3459 | } | |
3460 | ||
3461 | /* Install a 20-bit movi20 field starting at ADDR, which occurs in OUTPUT_BFD. | |
3462 | VALUE is the field's value. Return bfd_reloc_ok if successful or an error | |
3463 | otherwise. */ | |
3464 | ||
3465 | static bfd_reloc_status_type | |
3466 | install_movi20_field (bfd *output_bfd, unsigned long relocation, | |
3467 | bfd *input_bfd, asection *input_section, | |
3468 | bfd_byte *contents, bfd_vma offset) | |
3469 | { | |
3470 | unsigned long cur_val; | |
3471 | bfd_byte *addr; | |
3472 | bfd_reloc_status_type r; | |
3473 | ||
3474 | if (offset > bfd_get_section_limit (input_bfd, input_section)) | |
3475 | return bfd_reloc_outofrange; | |
3476 | ||
3477 | r = bfd_check_overflow (complain_overflow_signed, 20, 0, | |
3478 | bfd_arch_bits_per_address (input_bfd), relocation); | |
3479 | if (r != bfd_reloc_ok) | |
3480 | return r; | |
3481 | ||
3482 | addr = contents + offset; | |
3483 | cur_val = bfd_get_16 (output_bfd, addr); | |
3484 | bfd_put_16 (output_bfd, cur_val | ((relocation & 0xf0000) >> 12), addr); | |
3485 | bfd_put_16 (output_bfd, relocation & 0xffff, addr + 2); | |
3486 | ||
3487 | return bfd_reloc_ok; | |
3488 | } | |
3489 | ||
3490 | /* Relocate an SH ELF section. */ | |
3491 | ||
3492 | static bfd_boolean | |
3493 | sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, | |
3494 | bfd *input_bfd, asection *input_section, | |
3495 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
3496 | Elf_Internal_Sym *local_syms, | |
3497 | asection **local_sections) | |
3498 | { | |
3499 | struct elf_sh_link_hash_table *htab; | |
3500 | Elf_Internal_Shdr *symtab_hdr; | |
3501 | struct elf_link_hash_entry **sym_hashes; | |
3502 | Elf_Internal_Rela *rel, *relend; | |
8e45593f | 3503 | bfd_vma *local_got_offsets; |
e0af1f53 MR |
3504 | asection *sgot = NULL; |
3505 | asection *sgotplt = NULL; | |
3506 | asection *splt = NULL; | |
3507 | asection *sreloc = NULL; | |
3508 | asection *srelgot = NULL; | |
8e45593f NC |
3509 | bfd_boolean is_vxworks_tls; |
3510 | unsigned isec_segment, got_segment, plt_segment, check_segment[2]; | |
e0af1f53 | 3511 | bfd_boolean fdpic_p = FALSE; |
8e45593f | 3512 | |
7af5d5c4 AM |
3513 | if (!is_sh_elf (input_bfd)) |
3514 | { | |
3515 | bfd_set_error (bfd_error_wrong_format); | |
3516 | return FALSE; | |
3517 | } | |
8e45593f NC |
3518 | |
3519 | htab = sh_elf_hash_table (info); | |
e0af1f53 MR |
3520 | if (htab != NULL) |
3521 | { | |
ce558b89 AM |
3522 | sgot = htab->root.sgot; |
3523 | sgotplt = htab->root.sgotplt; | |
3524 | srelgot = htab->root.srelgot; | |
3525 | splt = htab->root.splt; | |
e0af1f53 MR |
3526 | fdpic_p = htab->fdpic_p; |
3527 | } | |
8e45593f NC |
3528 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
3529 | sym_hashes = elf_sym_hashes (input_bfd); | |
8e45593f NC |
3530 | local_got_offsets = elf_local_got_offsets (input_bfd); |
3531 | ||
3532 | isec_segment = sh_elf_osec_to_segment (output_bfd, | |
3533 | input_section->output_section); | |
e0af1f53 | 3534 | if (fdpic_p && sgot) |
8e45593f | 3535 | got_segment = sh_elf_osec_to_segment (output_bfd, |
e0af1f53 | 3536 | sgot->output_section); |
8e45593f NC |
3537 | else |
3538 | got_segment = -1; | |
e0af1f53 | 3539 | if (fdpic_p && splt) |
8e45593f | 3540 | plt_segment = sh_elf_osec_to_segment (output_bfd, |
e0af1f53 | 3541 | splt->output_section); |
8e45593f NC |
3542 | else |
3543 | plt_segment = -1; | |
3544 | ||
8e45593f NC |
3545 | /* We have to handle relocations in vxworks .tls_vars sections |
3546 | specially, because the dynamic loader is 'weird'. */ | |
0e1862bb | 3547 | is_vxworks_tls = (htab && htab->vxworks_p && bfd_link_pic (info) |
8e45593f NC |
3548 | && !strcmp (input_section->output_section->name, |
3549 | ".tls_vars")); | |
3550 | ||
3551 | rel = relocs; | |
3552 | relend = relocs + input_section->reloc_count; | |
3553 | for (; rel < relend; rel++) | |
3554 | { | |
3555 | int r_type; | |
3556 | reloc_howto_type *howto; | |
3557 | unsigned long r_symndx; | |
3558 | Elf_Internal_Sym *sym; | |
3559 | asection *sec; | |
3560 | struct elf_link_hash_entry *h; | |
3561 | bfd_vma relocation; | |
3562 | bfd_vma addend = (bfd_vma) 0; | |
3563 | bfd_reloc_status_type r; | |
3564 | int seen_stt_datalabel = 0; | |
3565 | bfd_vma off; | |
85e02784 | 3566 | enum got_type got_type; |
8e45593f | 3567 | const char *symname = NULL; |
6ee6e05a | 3568 | bfd_boolean resolved_to_zero; |
8e45593f NC |
3569 | |
3570 | r_symndx = ELF32_R_SYM (rel->r_info); | |
37c644f2 | 3571 | |
37c644f2 AO |
3572 | r_type = ELF32_R_TYPE (rel->r_info); |
3573 | ||
3574 | /* Many of the relocs are only used for relaxing, and are | |
067653c5 | 3575 | handled entirely by the relaxation code. */ |
d38eb334 DD |
3576 | if (r_type >= (int) R_SH_GNU_VTINHERIT |
3577 | && r_type <= (int) R_SH_LABEL) | |
37c644f2 | 3578 | continue; |
c5aeb40f AO |
3579 | if (r_type == (int) R_SH_NONE) |
3580 | continue; | |
37c644f2 AO |
3581 | |
3582 | if (r_type < 0 | |
3583 | || r_type >= R_SH_max | |
3584 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC | |
06bb75c1 | 3585 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) |
8e45593f NC |
3586 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 |
3587 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_2) | |
fbca6ad9 AO |
3588 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3 |
3589 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_3) | |
3590 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 | |
3591 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_4) | |
3376eaf5 KK |
3592 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5 |
3593 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_5) | |
8e45593f NC |
3594 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_6 |
3595 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_6)) | |
37c644f2 AO |
3596 | { |
3597 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3598 | return FALSE; |
37c644f2 AO |
3599 | } |
3600 | ||
55e6e397 | 3601 | howto = get_howto_table (output_bfd) + r_type; |
37c644f2 | 3602 | |
146be91a | 3603 | /* For relocs that aren't partial_inplace, we get the addend from |
067653c5 | 3604 | the relocation. */ |
146be91a HPN |
3605 | if (! howto->partial_inplace) |
3606 | addend = rel->r_addend; | |
3607 | ||
6ee6e05a | 3608 | resolved_to_zero = FALSE; |
37c644f2 AO |
3609 | h = NULL; |
3610 | sym = NULL; | |
3611 | sec = NULL; | |
8e45593f NC |
3612 | check_segment[0] = -1; |
3613 | check_segment[1] = -1; | |
37c644f2 AO |
3614 | if (r_symndx < symtab_hdr->sh_info) |
3615 | { | |
3616 | sym = local_syms + r_symndx; | |
3617 | sec = local_sections[r_symndx]; | |
8e45593f NC |
3618 | |
3619 | symname = bfd_elf_string_from_elf_section | |
3620 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
3621 | if (symname == NULL || *symname == '\0') | |
3622 | symname = bfd_section_name (input_bfd, sec); | |
3623 | ||
37c644f2 AO |
3624 | relocation = (sec->output_section->vma |
3625 | + sec->output_offset | |
3626 | + sym->st_value); | |
fbca6ad9 AO |
3627 | /* A local symbol never has STO_SH5_ISA32, so we don't need |
3628 | datalabel processing here. Make sure this does not change | |
3629 | without notice. */ | |
3630 | if ((sym->st_other & STO_SH5_ISA32) != 0) | |
1a72702b AM |
3631 | (*info->callbacks->reloc_dangerous) |
3632 | (info, | |
38f14ab8 | 3633 | _("unexpected STO_SH5_ISA32 on local symbol is not handled"), |
1a72702b | 3634 | input_bfd, input_section, rel->r_offset); |
ab96bf03 | 3635 | |
dbaa2011 | 3636 | if (sec != NULL && discarded_section (sec)) |
ab96bf03 AM |
3637 | /* Handled below. */ |
3638 | ; | |
0e1862bb | 3639 | else if (bfd_link_relocatable (info)) |
8a3975e6 | 3640 | { |
1049f94e | 3641 | /* This is a relocatable link. We don't have to change |
8a3975e6 AO |
3642 | anything, unless the reloc is against a section symbol, |
3643 | in which case we have to adjust according to where the | |
3644 | section symbol winds up in the output section. */ | |
8a3975e6 | 3645 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
146be91a HPN |
3646 | { |
3647 | if (! howto->partial_inplace) | |
3648 | { | |
3649 | /* For relocations with the addend in the | |
3650 | relocation, we need just to update the addend. | |
3651 | All real relocs are of type partial_inplace; this | |
3652 | code is mostly for completeness. */ | |
ab96bf03 | 3653 | rel->r_addend += sec->output_offset; |
146be91a HPN |
3654 | |
3655 | continue; | |
3656 | } | |
3657 | ||
3658 | /* Relocs of type partial_inplace need to pick up the | |
3659 | contents in the contents and add the offset resulting | |
3660 | from the changed location of the section symbol. | |
3661 | Using _bfd_final_link_relocate (e.g. goto | |
3662 | final_link_relocate) here would be wrong, because | |
3663 | relocations marked pc_relative would get the current | |
3664 | location subtracted, and we must only do that at the | |
3665 | final link. */ | |
3666 | r = _bfd_relocate_contents (howto, input_bfd, | |
3667 | sec->output_offset | |
3668 | + sym->st_value, | |
3669 | contents + rel->r_offset); | |
3670 | goto relocation_done; | |
3671 | } | |
8a3975e6 AO |
3672 | |
3673 | continue; | |
3674 | } | |
f8df10f4 JJ |
3675 | else if (! howto->partial_inplace) |
3676 | { | |
8517fae7 | 3677 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
f8df10f4 JJ |
3678 | addend = rel->r_addend; |
3679 | } | |
3680 | else if ((sec->flags & SEC_MERGE) | |
3681 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3682 | { | |
3683 | asection *msec; | |
3684 | ||
3685 | if (howto->rightshift || howto->src_mask != 0xffffffff) | |
3686 | { | |
4eca0228 | 3687 | _bfd_error_handler |
695344c0 | 3688 | /* xgettext:c-format */ |
2dcf00ce AM |
3689 | (_("%pB(%pA+%#" PRIx64 "): " |
3690 | "%s relocation against SEC_MERGE section"), | |
d003868e | 3691 | input_bfd, input_section, |
2dcf00ce | 3692 | (uint64_t) rel->r_offset, howto->name); |
b34976b6 | 3693 | return FALSE; |
f8df10f4 JJ |
3694 | } |
3695 | ||
067653c5 AM |
3696 | addend = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3697 | msec = sec; | |
3698 | addend = | |
c629eae0 | 3699 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) |
f8df10f4 JJ |
3700 | - relocation; |
3701 | addend += msec->output_section->vma + msec->output_offset; | |
3702 | bfd_put_32 (input_bfd, addend, contents + rel->r_offset); | |
3703 | addend = 0; | |
3704 | } | |
37c644f2 AO |
3705 | } |
3706 | else | |
3707 | { | |
560e09e9 NC |
3708 | /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */ |
3709 | ||
ab96bf03 | 3710 | relocation = 0; |
37c644f2 | 3711 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
8e45593f | 3712 | symname = h->root.root.string; |
37c644f2 AO |
3713 | while (h->root.type == bfd_link_hash_indirect |
3714 | || h->root.type == bfd_link_hash_warning) | |
211dc24b | 3715 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
37c644f2 AO |
3716 | if (h->root.type == bfd_link_hash_defined |
3717 | || h->root.type == bfd_link_hash_defweak) | |
3718 | { | |
b34976b6 | 3719 | bfd_boolean dyn; |
067653c5 | 3720 | |
e0af1f53 | 3721 | dyn = htab ? htab->root.dynamic_sections_created : FALSE; |
37c644f2 AO |
3722 | sec = h->root.u.def.section; |
3723 | /* In these cases, we don't need the relocation value. | |
3724 | We check specially because in some obscure cases | |
435b1e90 | 3725 | sec->output_section will be NULL. */ |
37c644f2 | 3726 | if (r_type == R_SH_GOTPC |
fbca6ad9 AO |
3727 | || r_type == R_SH_GOTPC_LOW16 |
3728 | || r_type == R_SH_GOTPC_MEDLOW16 | |
3729 | || r_type == R_SH_GOTPC_MEDHI16 | |
3730 | || r_type == R_SH_GOTPC_HI16 | |
3731 | || ((r_type == R_SH_PLT32 | |
3732 | || r_type == R_SH_PLT_LOW16 | |
3733 | || r_type == R_SH_PLT_MEDLOW16 | |
3734 | || r_type == R_SH_PLT_MEDHI16 | |
3735 | || r_type == R_SH_PLT_HI16) | |
37c644f2 | 3736 | && h->plt.offset != (bfd_vma) -1) |
fbca6ad9 | 3737 | || ((r_type == R_SH_GOT32 |
8e45593f NC |
3738 | || r_type == R_SH_GOT20 |
3739 | || r_type == R_SH_GOTFUNCDESC | |
3740 | || r_type == R_SH_GOTFUNCDESC20 | |
3741 | || r_type == R_SH_GOTOFFFUNCDESC | |
3742 | || r_type == R_SH_GOTOFFFUNCDESC20 | |
3743 | || r_type == R_SH_FUNCDESC | |
fbca6ad9 AO |
3744 | || r_type == R_SH_GOT_LOW16 |
3745 | || r_type == R_SH_GOT_MEDLOW16 | |
3746 | || r_type == R_SH_GOT_MEDHI16 | |
3747 | || r_type == R_SH_GOT_HI16) | |
0e1862bb L |
3748 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
3749 | bfd_link_pic (info), | |
3750 | h) | |
3751 | && (! bfd_link_pic (info) | |
37c644f2 | 3752 | || (! info->symbolic && h->dynindx != -1) |
f5385ebf | 3753 | || !h->def_regular)) |
37c644f2 AO |
3754 | /* The cases above are those in which relocation is |
3755 | overwritten in the switch block below. The cases | |
3756 | below are those in which we must defer relocation | |
3757 | to run-time, because we can't resolve absolute | |
3758 | addresses when creating a shared library. */ | |
0e1862bb | 3759 | || (bfd_link_pic (info) |
37c644f2 | 3760 | && ((! info->symbolic && h->dynindx != -1) |
f5385ebf | 3761 | || !h->def_regular) |
37c644f2 | 3762 | && ((r_type == R_SH_DIR32 |
f5385ebf | 3763 | && !h->forced_local) |
f50ad433 KK |
3764 | || (r_type == R_SH_REL32 |
3765 | && !SYMBOL_CALLS_LOCAL (info, h))) | |
37c644f2 AO |
3766 | && ((input_section->flags & SEC_ALLOC) != 0 |
3767 | /* DWARF will emit R_SH_DIR32 relocations in its | |
3768 | sections against symbols defined externally | |
3769 | in shared libraries. We can't do anything | |
3770 | with them here. */ | |
067653c5 | 3771 | || ((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 3772 | && h->def_dynamic))) |
1448fa32 KK |
3773 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
3774 | sections because such sections are not SEC_ALLOC and | |
3775 | thus ld.so will not process them. */ | |
3776 | || (sec->output_section == NULL | |
3777 | && ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 3778 | && h->def_dynamic)) |
3376eaf5 | 3779 | || (sec->output_section == NULL |
8e45593f NC |
3780 | && (sh_elf_hash_entry (h)->got_type == GOT_TLS_IE |
3781 | || sh_elf_hash_entry (h)->got_type == GOT_TLS_GD))) | |
ab96bf03 AM |
3782 | ; |
3783 | else if (sec->output_section != NULL) | |
3784 | relocation = ((h->root.u.def.value | |
3785 | + sec->output_section->vma | |
3786 | + sec->output_offset) | |
3787 | /* A STO_SH5_ISA32 causes a "bitor 1" to the | |
3788 | symbol value, unless we've seen | |
3789 | STT_DATALABEL on the way to it. */ | |
3790 | | ((h->other & STO_SH5_ISA32) != 0 | |
3791 | && ! seen_stt_datalabel)); | |
0e1862bb | 3792 | else if (!bfd_link_relocatable (info) |
1d5316ab AM |
3793 | && (_bfd_elf_section_offset (output_bfd, info, |
3794 | input_section, | |
3795 | rel->r_offset) | |
3796 | != (bfd_vma) -1)) | |
37c644f2 | 3797 | { |
4eca0228 | 3798 | _bfd_error_handler |
695344c0 | 3799 | /* xgettext:c-format */ |
2dcf00ce AM |
3800 | (_("%pB(%pA+%#" PRIx64 "): " |
3801 | "unresolvable %s relocation against symbol `%s'"), | |
843fe662 L |
3802 | input_bfd, |
3803 | input_section, | |
2dcf00ce | 3804 | (uint64_t) rel->r_offset, |
843fe662 L |
3805 | howto->name, |
3806 | h->root.root.string); | |
b34976b6 | 3807 | return FALSE; |
37c644f2 | 3808 | } |
37c644f2 AO |
3809 | } |
3810 | else if (h->root.type == bfd_link_hash_undefweak) | |
6ee6e05a | 3811 | resolved_to_zero = UNDEFWEAK_NO_DYNAMIC_RELOC (info, h); |
59c2e50f | 3812 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
067653c5 | 3813 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
ab96bf03 | 3814 | ; |
0e1862bb | 3815 | else if (!bfd_link_relocatable (info)) |
1a72702b AM |
3816 | (*info->callbacks->undefined_symbol) |
3817 | (info, h->root.root.string, input_bfd, | |
3818 | input_section, rel->r_offset, | |
3819 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR | |
3820 | || ELF_ST_VISIBILITY (h->other))); | |
37c644f2 AO |
3821 | } |
3822 | ||
dbaa2011 | 3823 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 3824 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3825 | rel, 1, relend, howto, 0, contents); |
ab96bf03 | 3826 | |
0e1862bb | 3827 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
3828 | continue; |
3829 | ||
8e45593f NC |
3830 | /* Check for inter-segment relocations in FDPIC files. Most |
3831 | relocations connect the relocation site to the location of | |
3832 | the target symbol, but there are some exceptions below. */ | |
3833 | check_segment[0] = isec_segment; | |
3834 | if (sec != NULL) | |
3835 | check_segment[1] = sh_elf_osec_to_segment (output_bfd, | |
3836 | sec->output_section); | |
3837 | else | |
3838 | check_segment[1] = -1; | |
3839 | ||
435b1e90 | 3840 | switch ((int) r_type) |
37c644f2 AO |
3841 | { |
3842 | final_link_relocate: | |
3843 | /* COFF relocs don't use the addend. The addend is used for | |
435b1e90 | 3844 | R_SH_DIR32 to be compatible with other compilers. */ |
37c644f2 AO |
3845 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3846 | contents, rel->r_offset, | |
3847 | relocation, addend); | |
3848 | break; | |
3849 | ||
3850 | case R_SH_IND12W: | |
cd6ec716 DD |
3851 | goto final_link_relocate; |
3852 | ||
37c644f2 AO |
3853 | case R_SH_DIR8WPN: |
3854 | case R_SH_DIR8WPZ: | |
3855 | case R_SH_DIR8WPL: | |
cd6ec716 DD |
3856 | /* If the reloc is against the start of this section, then |
3857 | the assembler has already taken care of it and the reloc | |
3858 | is here only to assist in relaxing. If the reloc is not | |
3859 | against the start of this section, then it's against an | |
3860 | external symbol and we must deal with it ourselves. */ | |
3861 | if (input_section->output_section->vma + input_section->output_offset | |
3862 | != relocation) | |
3863 | { | |
3864 | int disp = (relocation | |
3865 | - input_section->output_section->vma | |
3866 | - input_section->output_offset | |
3867 | - rel->r_offset); | |
3868 | int mask = 0; | |
3869 | switch (r_type) | |
3870 | { | |
3871 | case R_SH_DIR8WPN: | |
3872 | case R_SH_DIR8WPZ: mask = 1; break; | |
3873 | case R_SH_DIR8WPL: mask = 3; break; | |
3874 | default: mask = 0; break; | |
3875 | } | |
3876 | if (disp & mask) | |
3877 | { | |
4eca0228 | 3878 | _bfd_error_handler |
695344c0 | 3879 | /* xgettext:c-format */ |
2dcf00ce AM |
3880 | (_("%pB: %#" PRIx64 ": fatal: " |
3881 | "unaligned branch target for relax-support relocation"), | |
4eca0228 | 3882 | input_section->owner, |
2dcf00ce | 3883 | (uint64_t) rel->r_offset); |
cd6ec716 | 3884 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3885 | return FALSE; |
cd6ec716 DD |
3886 | } |
3887 | relocation -= 4; | |
3888 | goto final_link_relocate; | |
3889 | } | |
3890 | r = bfd_reloc_ok; | |
3891 | break; | |
37c644f2 AO |
3892 | |
3893 | default: | |
3894 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3895 | return FALSE; |
37c644f2 | 3896 | |
d38eb334 DD |
3897 | case R_SH_DIR16: |
3898 | case R_SH_DIR8: | |
3899 | case R_SH_DIR8U: | |
3900 | case R_SH_DIR8S: | |
3901 | case R_SH_DIR4U: | |
3902 | goto final_link_relocate; | |
3903 | ||
3904 | case R_SH_DIR8UL: | |
3905 | case R_SH_DIR4UL: | |
3906 | if (relocation & 3) | |
3907 | { | |
4eca0228 | 3908 | _bfd_error_handler |
695344c0 | 3909 | /* xgettext:c-format */ |
2dcf00ce AM |
3910 | (_("%pB: %#" PRIx64 ": fatal: " |
3911 | "unaligned %s relocation %#" PRIx64), | |
3912 | input_section->owner, (uint64_t) rel->r_offset, | |
3913 | howto->name, (uint64_t) relocation); | |
d38eb334 DD |
3914 | bfd_set_error (bfd_error_bad_value); |
3915 | return FALSE; | |
3916 | } | |
3917 | goto final_link_relocate; | |
3918 | ||
3919 | case R_SH_DIR8UW: | |
3920 | case R_SH_DIR8SW: | |
3921 | case R_SH_DIR4UW: | |
3922 | if (relocation & 1) | |
3923 | { | |
4eca0228 | 3924 | _bfd_error_handler |
695344c0 | 3925 | /* xgettext:c-format */ |
2dcf00ce AM |
3926 | (_("%pB: %#" PRIx64 ": fatal: " |
3927 | "unaligned %s relocation %#" PRIx64 ""), | |
4eca0228 | 3928 | input_section->owner, |
2dcf00ce AM |
3929 | (uint64_t) rel->r_offset, howto->name, |
3930 | (uint64_t) relocation); | |
d38eb334 DD |
3931 | bfd_set_error (bfd_error_bad_value); |
3932 | return FALSE; | |
3933 | } | |
3934 | goto final_link_relocate; | |
3935 | ||
3936 | case R_SH_PSHA: | |
3937 | if ((signed int)relocation < -32 | |
3938 | || (signed int)relocation > 32) | |
3939 | { | |
4eca0228 | 3940 | _bfd_error_handler |
695344c0 | 3941 | /* xgettext:c-format */ |
2dcf00ce AM |
3942 | (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHA relocation %" PRId64 |
3943 | " not in range -32..32"), | |
4eca0228 | 3944 | input_section->owner, |
2dcf00ce AM |
3945 | (uint64_t) rel->r_offset, |
3946 | (int64_t) relocation); | |
d38eb334 DD |
3947 | bfd_set_error (bfd_error_bad_value); |
3948 | return FALSE; | |
3949 | } | |
3950 | goto final_link_relocate; | |
3951 | ||
3952 | case R_SH_PSHL: | |
3953 | if ((signed int)relocation < -16 | |
3954 | || (signed int)relocation > 16) | |
3955 | { | |
4eca0228 | 3956 | _bfd_error_handler |
695344c0 | 3957 | /* xgettext:c-format */ |
2dcf00ce AM |
3958 | (_("%pB: %#" PRIx64 ": fatal: R_SH_PSHL relocation %" PRId64 |
3959 | " not in range -32..32"), | |
4eca0228 | 3960 | input_section->owner, |
2dcf00ce AM |
3961 | (uint64_t) rel->r_offset, |
3962 | (int64_t) relocation); | |
d38eb334 DD |
3963 | bfd_set_error (bfd_error_bad_value); |
3964 | return FALSE; | |
3965 | } | |
3966 | goto final_link_relocate; | |
3967 | ||
37c644f2 AO |
3968 | case R_SH_DIR32: |
3969 | case R_SH_REL32: | |
0e1862bb | 3970 | if (bfd_link_pic (info) |
04e534c3 | 3971 | && (h == NULL |
6ee6e05a L |
3972 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
3973 | && !resolved_to_zero) | |
04e534c3 | 3974 | || h->root.type != bfd_link_hash_undefweak) |
cf35638d | 3975 | && r_symndx != STN_UNDEF |
37c644f2 | 3976 | && (input_section->flags & SEC_ALLOC) != 0 |
3348747a | 3977 | && !is_vxworks_tls |
46e993b9 | 3978 | && (r_type == R_SH_DIR32 |
3d85aebe | 3979 | || !SYMBOL_CALLS_LOCAL (info, h))) |
37c644f2 AO |
3980 | { |
3981 | Elf_Internal_Rela outrel; | |
947216bf | 3982 | bfd_byte *loc; |
b34976b6 | 3983 | bfd_boolean skip, relocate; |
37c644f2 AO |
3984 | |
3985 | /* When generating a shared object, these relocations | |
3986 | are copied into the output file to be resolved at run | |
3987 | time. */ | |
3988 | ||
3989 | if (sreloc == NULL) | |
3990 | { | |
83bac4b0 NC |
3991 | sreloc = _bfd_elf_get_dynamic_reloc_section |
3992 | (input_bfd, input_section, /*rela?*/ TRUE); | |
3993 | if (sreloc == NULL) | |
b34976b6 | 3994 | return FALSE; |
37c644f2 AO |
3995 | } |
3996 | ||
b34976b6 AM |
3997 | skip = FALSE; |
3998 | relocate = FALSE; | |
37c644f2 | 3999 | |
c629eae0 JJ |
4000 | outrel.r_offset = |
4001 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
4002 | rel->r_offset); | |
4003 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 4004 | skip = TRUE; |
0bb2d96a | 4005 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 4006 | skip = TRUE, relocate = TRUE; |
37c644f2 AO |
4007 | outrel.r_offset += (input_section->output_section->vma |
4008 | + input_section->output_offset); | |
4009 | ||
4010 | if (skip) | |
0bb2d96a | 4011 | memset (&outrel, 0, sizeof outrel); |
37c644f2 AO |
4012 | else if (r_type == R_SH_REL32) |
4013 | { | |
4014 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
37c644f2 | 4015 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32); |
146be91a | 4016 | outrel.r_addend |
55e6e397 RS |
4017 | = (howto->partial_inplace |
4018 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4019 | : addend); | |
37c644f2 | 4020 | } |
e0af1f53 | 4021 | else if (fdpic_p |
8e45593f NC |
4022 | && (h == NULL |
4023 | || ((info->symbolic || h->dynindx == -1) | |
4024 | && h->def_regular))) | |
4025 | { | |
4026 | int dynindx; | |
4027 | ||
4028 | BFD_ASSERT (sec != NULL); | |
4029 | BFD_ASSERT (sec->output_section != NULL); | |
4030 | dynindx = elf_section_data (sec->output_section)->dynindx; | |
4031 | outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
4032 | outrel.r_addend = relocation; | |
4033 | outrel.r_addend | |
4034 | += (howto->partial_inplace | |
4035 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4036 | : addend); | |
4037 | outrel.r_addend -= sec->output_section->vma; | |
4038 | } | |
37c644f2 AO |
4039 | else |
4040 | { | |
4041 | /* h->dynindx may be -1 if this symbol was marked to | |
4042 | become local. */ | |
4043 | if (h == NULL | |
4044 | || ((info->symbolic || h->dynindx == -1) | |
f5385ebf | 4045 | && h->def_regular)) |
37c644f2 | 4046 | { |
55e6e397 | 4047 | relocate = howto->partial_inplace; |
37c644f2 | 4048 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); |
37c644f2 AO |
4049 | } |
4050 | else | |
4051 | { | |
4052 | BFD_ASSERT (h->dynindx != -1); | |
37c644f2 | 4053 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32); |
37c644f2 | 4054 | } |
55e6e397 RS |
4055 | outrel.r_addend = relocation; |
4056 | outrel.r_addend | |
4057 | += (howto->partial_inplace | |
4058 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
4059 | : addend); | |
37c644f2 AO |
4060 | } |
4061 | ||
947216bf AM |
4062 | loc = sreloc->contents; |
4063 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4064 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 | 4065 | |
8e45593f NC |
4066 | check_segment[0] = check_segment[1] = -1; |
4067 | ||
37c644f2 AO |
4068 | /* If this reloc is against an external symbol, we do |
4069 | not want to fiddle with the addend. Otherwise, we | |
4070 | need to include the symbol value so that it becomes | |
4071 | an addend for the dynamic reloc. */ | |
4072 | if (! relocate) | |
4073 | continue; | |
4074 | } | |
0e1862bb | 4075 | else if (fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
4076 | && r_type == R_SH_DIR32 |
4077 | && (input_section->flags & SEC_ALLOC) != 0) | |
4078 | { | |
4079 | bfd_vma offset; | |
4080 | ||
e0af1f53 MR |
4081 | BFD_ASSERT (htab); |
4082 | ||
8e45593f NC |
4083 | if (sh_elf_osec_readonly_p (output_bfd, |
4084 | input_section->output_section)) | |
4085 | { | |
4eca0228 | 4086 | _bfd_error_handler |
695344c0 | 4087 | /* xgettext:c-format */ |
2dcf00ce AM |
4088 | (_("%pB(%pA+%#" PRIx64 "): " |
4089 | "cannot emit fixup to `%s' in read-only section"), | |
8e45593f NC |
4090 | input_bfd, |
4091 | input_section, | |
2dcf00ce | 4092 | (uint64_t) rel->r_offset, |
8e45593f NC |
4093 | symname); |
4094 | return FALSE; | |
4095 | } | |
4096 | ||
4097 | offset = _bfd_elf_section_offset (output_bfd, info, | |
4098 | input_section, rel->r_offset); | |
4099 | if (offset != (bfd_vma)-1) | |
4100 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4101 | input_section->output_section->vma | |
4102 | + input_section->output_offset | |
4103 | + rel->r_offset); | |
4104 | ||
4105 | check_segment[0] = check_segment[1] = -1; | |
4106 | } | |
a6f713fc KK |
4107 | /* We don't want warnings for non-NULL tests on undefined weak |
4108 | symbols. */ | |
4109 | else if (r_type == R_SH_REL32 | |
4110 | && h | |
1b786873 | 4111 | && h->root.type == bfd_link_hash_undefweak) |
a6f713fc | 4112 | check_segment[0] = check_segment[1] = -1; |
37c644f2 AO |
4113 | goto final_link_relocate; |
4114 | ||
fbca6ad9 | 4115 | case R_SH_GOTPLT32: |
fbca6ad9 AO |
4116 | /* Relocation is to the entry for this symbol in the |
4117 | procedure linkage table. */ | |
4118 | ||
4119 | if (h == NULL | |
f5385ebf | 4120 | || h->forced_local |
0e1862bb | 4121 | || ! bfd_link_pic (info) |
fbca6ad9 AO |
4122 | || info->symbolic |
4123 | || h->dynindx == -1 | |
4124 | || h->plt.offset == (bfd_vma) -1 | |
4125 | || h->got.offset != (bfd_vma) -1) | |
4126 | goto force_got; | |
4127 | ||
4128 | /* Relocation is to the entry for this symbol in the global | |
4129 | offset table extension for the procedure linkage table. */ | |
fbca6ad9 | 4130 | |
e0af1f53 | 4131 | BFD_ASSERT (htab); |
067653c5 | 4132 | BFD_ASSERT (sgotplt != NULL); |
fbca6ad9 | 4133 | relocation = (sgotplt->output_offset |
55e6e397 RS |
4134 | + (get_plt_index (htab->plt_info, h->plt.offset) |
4135 | + 3) * 4); | |
fbca6ad9 AO |
4136 | |
4137 | #ifdef GOT_BIAS | |
4138 | relocation -= GOT_BIAS; | |
4139 | #endif | |
4140 | ||
4141 | goto final_link_relocate; | |
4142 | ||
4143 | force_got: | |
37c644f2 | 4144 | case R_SH_GOT32: |
8e45593f | 4145 | case R_SH_GOT20: |
37c644f2 AO |
4146 | /* Relocation is to the entry for this symbol in the global |
4147 | offset table. */ | |
067653c5 | 4148 | |
e0af1f53 | 4149 | BFD_ASSERT (htab); |
067653c5 | 4150 | BFD_ASSERT (sgot != NULL); |
8e45593f | 4151 | check_segment[0] = check_segment[1] = -1; |
37c644f2 AO |
4152 | |
4153 | if (h != NULL) | |
4154 | { | |
b34976b6 | 4155 | bfd_boolean dyn; |
37c644f2 AO |
4156 | |
4157 | off = h->got.offset; | |
4158 | BFD_ASSERT (off != (bfd_vma) -1); | |
4159 | ||
067653c5 | 4160 | dyn = htab->root.dynamic_sections_created; |
0e1862bb L |
4161 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
4162 | bfd_link_pic (info), | |
4163 | h) | |
4164 | || (bfd_link_pic (info) | |
3d85aebe | 4165 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
6ee6e05a L |
4166 | || ((ELF_ST_VISIBILITY (h->other) |
4167 | || resolved_to_zero) | |
04e534c3 | 4168 | && h->root.type == bfd_link_hash_undefweak)) |
37c644f2 AO |
4169 | { |
4170 | /* This is actually a static link, or it is a | |
4171 | -Bsymbolic link and the symbol is defined | |
4172 | locally, or the symbol was forced to be local | |
4173 | because of a version file. We must initialize | |
4174 | this entry in the global offset table. Since the | |
4175 | offset must always be a multiple of 4, we use the | |
4176 | least significant bit to record whether we have | |
4177 | initialized it already. | |
4178 | ||
4179 | When doing a dynamic link, we create a .rela.got | |
4180 | relocation entry to initialize the value. This | |
4181 | is done in the finish_dynamic_symbol routine. */ | |
4182 | if ((off & 1) != 0) | |
4183 | off &= ~1; | |
4184 | else | |
4185 | { | |
4186 | bfd_put_32 (output_bfd, relocation, | |
4187 | sgot->contents + off); | |
211dc24b | 4188 | h->got.offset |= 1; |
8e45593f NC |
4189 | |
4190 | /* If we initialize the GOT entry here with a valid | |
4191 | symbol address, also add a fixup. */ | |
0e1862bb | 4192 | if (fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
4193 | && sh_elf_hash_entry (h)->got_type == GOT_NORMAL |
4194 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
4195 | || h->root.type != bfd_link_hash_undefweak)) | |
4196 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4197 | sgot->output_section->vma | |
4198 | + sgot->output_offset | |
4199 | + off); | |
37c644f2 AO |
4200 | } |
4201 | } | |
4202 | ||
8e45593f | 4203 | relocation = sh_elf_got_offset (htab) + off; |
37c644f2 AO |
4204 | } |
4205 | else | |
4206 | { | |
37c644f2 AO |
4207 | BFD_ASSERT (local_got_offsets != NULL |
4208 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
4209 | ||
4210 | off = local_got_offsets[r_symndx]; | |
4211 | ||
4212 | /* The offset must always be a multiple of 4. We use | |
4213 | the least significant bit to record whether we have | |
4214 | already generated the necessary reloc. */ | |
4215 | if ((off & 1) != 0) | |
4216 | off &= ~1; | |
4217 | else | |
4218 | { | |
4219 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
4220 | ||
0e1862bb | 4221 | if (bfd_link_pic (info)) |
37c644f2 | 4222 | { |
37c644f2 | 4223 | Elf_Internal_Rela outrel; |
947216bf | 4224 | bfd_byte *loc; |
37c644f2 | 4225 | |
37c644f2 AO |
4226 | outrel.r_offset = (sgot->output_section->vma |
4227 | + sgot->output_offset | |
4228 | + off); | |
e0af1f53 | 4229 | if (fdpic_p) |
8e45593f NC |
4230 | { |
4231 | int dynindx | |
4232 | = elf_section_data (sec->output_section)->dynindx; | |
4233 | outrel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
4234 | outrel.r_addend = relocation; | |
4235 | outrel.r_addend -= sec->output_section->vma; | |
4236 | } | |
4237 | else | |
4238 | { | |
4239 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
4240 | outrel.r_addend = relocation; | |
4241 | } | |
947216bf AM |
4242 | loc = srelgot->contents; |
4243 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
4244 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 | 4245 | } |
e0af1f53 | 4246 | else if (fdpic_p |
8e45593f NC |
4247 | && (sh_elf_local_got_type (input_bfd) [r_symndx] |
4248 | == GOT_NORMAL)) | |
4249 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4250 | sgot->output_section->vma | |
4251 | + sgot->output_offset | |
4252 | + off); | |
37c644f2 | 4253 | |
211dc24b | 4254 | local_got_offsets[r_symndx] |= 1; |
37c644f2 AO |
4255 | } |
4256 | ||
8e45593f | 4257 | relocation = sh_elf_got_offset (htab) + off; |
37c644f2 AO |
4258 | } |
4259 | ||
fbca6ad9 | 4260 | #ifdef GOT_BIAS |
067653c5 | 4261 | relocation -= GOT_BIAS; |
fbca6ad9 AO |
4262 | #endif |
4263 | ||
8e45593f NC |
4264 | if (r_type == R_SH_GOT20) |
4265 | { | |
4266 | r = install_movi20_field (output_bfd, relocation + addend, | |
4267 | input_bfd, input_section, contents, | |
4268 | rel->r_offset); | |
4269 | break; | |
4270 | } | |
4271 | else | |
4272 | goto final_link_relocate; | |
37c644f2 AO |
4273 | |
4274 | case R_SH_GOTOFF: | |
8e45593f | 4275 | case R_SH_GOTOFF20: |
8e45593f NC |
4276 | /* GOTOFF relocations are relative to _GLOBAL_OFFSET_TABLE_, which |
4277 | we place at the start of the .got.plt section. This is the same | |
4278 | as the start of the output .got section, unless there are function | |
4279 | descriptors in front of it. */ | |
e0af1f53 | 4280 | BFD_ASSERT (htab); |
8e45593f NC |
4281 | BFD_ASSERT (sgotplt != NULL); |
4282 | check_segment[0] = got_segment; | |
4283 | relocation -= sgotplt->output_section->vma + sgotplt->output_offset | |
4284 | + htab->root.hgot->root.u.def.value; | |
37c644f2 | 4285 | |
fbca6ad9 AO |
4286 | #ifdef GOT_BIAS |
4287 | relocation -= GOT_BIAS; | |
4288 | #endif | |
4289 | ||
4290 | addend = rel->r_addend; | |
4291 | ||
8e45593f NC |
4292 | if (r_type == R_SH_GOTOFF20) |
4293 | { | |
4294 | r = install_movi20_field (output_bfd, relocation + addend, | |
4295 | input_bfd, input_section, contents, | |
4296 | rel->r_offset); | |
4297 | break; | |
4298 | } | |
4299 | else | |
4300 | goto final_link_relocate; | |
37c644f2 AO |
4301 | |
4302 | case R_SH_GOTPC: | |
4303 | /* Use global offset table as symbol value. */ | |
4304 | ||
8e45593f NC |
4305 | BFD_ASSERT (sgotplt != NULL); |
4306 | relocation = sgotplt->output_section->vma + sgotplt->output_offset; | |
37c644f2 | 4307 | |
fbca6ad9 AO |
4308 | #ifdef GOT_BIAS |
4309 | relocation += GOT_BIAS; | |
4310 | #endif | |
4311 | ||
4312 | addend = rel->r_addend; | |
4313 | ||
37c644f2 AO |
4314 | goto final_link_relocate; |
4315 | ||
4316 | case R_SH_PLT32: | |
4317 | /* Relocation is to the entry for this symbol in the | |
4318 | procedure linkage table. */ | |
4319 | ||
4320 | /* Resolve a PLT reloc against a local symbol directly, | |
4321 | without using the procedure linkage table. */ | |
4322 | if (h == NULL) | |
4323 | goto final_link_relocate; | |
4324 | ||
8e45593f NC |
4325 | /* We don't want to warn on calls to undefined weak symbols, |
4326 | as calls to them must be protected by non-NULL tests | |
4327 | anyway, and unprotected calls would invoke undefined | |
4328 | behavior. */ | |
4329 | if (h->root.type == bfd_link_hash_undefweak) | |
4330 | check_segment[0] = check_segment[1] = -1; | |
4331 | ||
f5385ebf | 4332 | if (h->forced_local) |
37c644f2 AO |
4333 | goto final_link_relocate; |
4334 | ||
4335 | if (h->plt.offset == (bfd_vma) -1) | |
4336 | { | |
4337 | /* We didn't make a PLT entry for this symbol. This | |
4338 | happens when statically linking PIC code, or when | |
4339 | using -Bsymbolic. */ | |
4340 | goto final_link_relocate; | |
4341 | } | |
4342 | ||
067653c5 | 4343 | BFD_ASSERT (splt != NULL); |
8e45593f | 4344 | check_segment[1] = plt_segment; |
37c644f2 AO |
4345 | relocation = (splt->output_section->vma |
4346 | + splt->output_offset | |
4347 | + h->plt.offset); | |
4348 | ||
fbca6ad9 AO |
4349 | addend = rel->r_addend; |
4350 | ||
37c644f2 AO |
4351 | goto final_link_relocate; |
4352 | ||
8e45593f NC |
4353 | /* Relocation is to the canonical function descriptor for this |
4354 | symbol, possibly via the GOT. Initialize the GOT | |
4355 | entry and function descriptor if necessary. */ | |
4356 | case R_SH_GOTFUNCDESC: | |
4357 | case R_SH_GOTFUNCDESC20: | |
4358 | case R_SH_FUNCDESC: | |
4359 | { | |
4360 | int dynindx = -1; | |
4361 | asection *reloc_section; | |
4362 | bfd_vma reloc_offset; | |
4363 | int reloc_type = R_SH_FUNCDESC; | |
4364 | ||
e0af1f53 MR |
4365 | BFD_ASSERT (htab); |
4366 | ||
8e45593f NC |
4367 | check_segment[0] = check_segment[1] = -1; |
4368 | ||
4369 | /* FIXME: See what FRV does for global symbols in the | |
4370 | executable, with --export-dynamic. Do they need ld.so | |
4371 | to allocate official descriptors? See what this code | |
4372 | does. */ | |
4373 | ||
4374 | relocation = 0; | |
4375 | addend = 0; | |
4376 | ||
4377 | if (r_type == R_SH_FUNCDESC) | |
4378 | { | |
4379 | reloc_section = input_section; | |
4380 | reloc_offset = rel->r_offset; | |
4381 | } | |
4382 | else | |
4383 | { | |
e0af1f53 | 4384 | reloc_section = sgot; |
8e45593f NC |
4385 | |
4386 | if (h != NULL) | |
4387 | reloc_offset = h->got.offset; | |
4388 | else | |
4389 | { | |
4390 | BFD_ASSERT (local_got_offsets != NULL); | |
4391 | reloc_offset = local_got_offsets[r_symndx]; | |
4392 | } | |
4393 | BFD_ASSERT (reloc_offset != MINUS_ONE); | |
4394 | ||
4395 | if (reloc_offset & 1) | |
4396 | { | |
4397 | reloc_offset &= ~1; | |
4398 | goto funcdesc_done_got; | |
4399 | } | |
4400 | } | |
4401 | ||
4402 | if (h && h->root.type == bfd_link_hash_undefweak | |
4403 | && (SYMBOL_CALLS_LOCAL (info, h) | |
4404 | || !htab->root.dynamic_sections_created)) | |
4405 | /* Undefined weak symbol which will not be dynamically | |
4406 | resolved later; leave it at zero. */ | |
4407 | goto funcdesc_leave_zero; | |
4408 | else if (SYMBOL_CALLS_LOCAL (info, h) | |
4409 | && ! SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4410 | { | |
4411 | /* If the symbol needs a non-local function descriptor | |
4412 | but binds locally (i.e., its visibility is | |
4413 | protected), emit a dynamic relocation decayed to | |
4414 | section+offset. This is an optimization; the dynamic | |
4415 | linker would resolve our function descriptor request | |
4416 | to our copy of the function anyway. */ | |
4417 | dynindx = elf_section_data (h->root.u.def.section | |
4418 | ->output_section)->dynindx; | |
4419 | relocation += h->root.u.def.section->output_offset | |
4420 | + h->root.u.def.value; | |
4421 | } | |
4422 | else if (! SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4423 | { | |
4424 | /* If the symbol is dynamic and there will be dynamic | |
4425 | symbol resolution because we are or are linked with a | |
4426 | shared library, emit a FUNCDESC relocation such that | |
4427 | the dynamic linker will allocate the function | |
4428 | descriptor. */ | |
4429 | BFD_ASSERT (h->dynindx != -1); | |
4430 | dynindx = h->dynindx; | |
4431 | } | |
4432 | else | |
4433 | { | |
4434 | bfd_vma offset; | |
4435 | ||
4436 | /* Otherwise, we know we have a private function | |
4437 | descriptor, so reference it directly. */ | |
4438 | reloc_type = R_SH_DIR32; | |
4439 | dynindx = elf_section_data (htab->sfuncdesc | |
4440 | ->output_section)->dynindx; | |
4441 | ||
4442 | if (h) | |
4443 | { | |
4444 | offset = sh_elf_hash_entry (h)->funcdesc.offset; | |
4445 | BFD_ASSERT (offset != MINUS_ONE); | |
4446 | if ((offset & 1) == 0) | |
4447 | { | |
4448 | if (!sh_elf_initialize_funcdesc (output_bfd, info, h, | |
4449 | offset, NULL, 0)) | |
4450 | return FALSE; | |
4451 | sh_elf_hash_entry (h)->funcdesc.offset |= 1; | |
4452 | } | |
4453 | } | |
4454 | else | |
4455 | { | |
4456 | union gotref *local_funcdesc; | |
4457 | ||
4458 | local_funcdesc = sh_elf_local_funcdesc (input_bfd); | |
4459 | offset = local_funcdesc[r_symndx].offset; | |
4460 | BFD_ASSERT (offset != MINUS_ONE); | |
4461 | if ((offset & 1) == 0) | |
4462 | { | |
4463 | if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL, | |
4464 | offset, sec, | |
4465 | sym->st_value)) | |
4466 | return FALSE; | |
4467 | local_funcdesc[r_symndx].offset |= 1; | |
4468 | } | |
4469 | } | |
4470 | ||
4471 | relocation = htab->sfuncdesc->output_offset + (offset & ~1); | |
4472 | } | |
4473 | ||
0e1862bb | 4474 | if (!bfd_link_pic (info) && SYMBOL_FUNCDESC_LOCAL (info, h)) |
8e45593f NC |
4475 | { |
4476 | bfd_vma offset; | |
4477 | ||
4478 | if (sh_elf_osec_readonly_p (output_bfd, | |
4479 | reloc_section->output_section)) | |
4480 | { | |
4eca0228 | 4481 | _bfd_error_handler |
695344c0 | 4482 | /* xgettext:c-format */ |
2dcf00ce AM |
4483 | (_("%pB(%pA+%#" PRIx64 "): " |
4484 | "cannot emit fixup to `%s' in read-only section"), | |
8e45593f NC |
4485 | input_bfd, |
4486 | input_section, | |
2dcf00ce | 4487 | (uint64_t) rel->r_offset, |
8e45593f NC |
4488 | symname); |
4489 | return FALSE; | |
4490 | } | |
4491 | ||
4492 | offset = _bfd_elf_section_offset (output_bfd, info, | |
4493 | reloc_section, reloc_offset); | |
4494 | ||
4495 | if (offset != (bfd_vma)-1) | |
4496 | sh_elf_add_rofixup (output_bfd, htab->srofixup, | |
4497 | offset | |
4498 | + reloc_section->output_section->vma | |
4499 | + reloc_section->output_offset); | |
4500 | } | |
4501 | else if ((reloc_section->output_section->flags | |
4502 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
4503 | { | |
4504 | bfd_vma offset; | |
4505 | ||
4506 | if (sh_elf_osec_readonly_p (output_bfd, | |
4507 | reloc_section->output_section)) | |
4508 | { | |
4509 | info->callbacks->warning | |
4510 | (info, | |
4511 | _("cannot emit dynamic relocations in read-only section"), | |
4512 | symname, input_bfd, reloc_section, reloc_offset); | |
4513 | return FALSE; | |
4514 | } | |
4515 | ||
8e45593f NC |
4516 | offset = _bfd_elf_section_offset (output_bfd, info, |
4517 | reloc_section, reloc_offset); | |
4518 | ||
4519 | if (offset != (bfd_vma)-1) | |
4520 | sh_elf_add_dyn_reloc (output_bfd, srelgot, | |
4521 | offset | |
4522 | + reloc_section->output_section->vma | |
4523 | + reloc_section->output_offset, | |
4524 | reloc_type, dynindx, relocation); | |
4525 | ||
4526 | if (r_type == R_SH_FUNCDESC) | |
4527 | { | |
4528 | r = bfd_reloc_ok; | |
4529 | break; | |
4530 | } | |
4531 | else | |
4532 | { | |
4533 | relocation = 0; | |
4534 | goto funcdesc_leave_zero; | |
4535 | } | |
4536 | } | |
4537 | ||
4538 | if (SYMBOL_FUNCDESC_LOCAL (info, h)) | |
4539 | relocation += htab->sfuncdesc->output_section->vma; | |
4540 | funcdesc_leave_zero: | |
4541 | if (r_type != R_SH_FUNCDESC) | |
4542 | { | |
4543 | bfd_put_32 (output_bfd, relocation, | |
4544 | reloc_section->contents + reloc_offset); | |
4545 | if (h != NULL) | |
4546 | h->got.offset |= 1; | |
4547 | else | |
4548 | local_got_offsets[r_symndx] |= 1; | |
4549 | ||
4550 | funcdesc_done_got: | |
4551 | ||
4552 | relocation = sh_elf_got_offset (htab) + reloc_offset; | |
4553 | #ifdef GOT_BIAS | |
4554 | relocation -= GOT_BIAS; | |
4555 | #endif | |
4556 | } | |
4557 | if (r_type == R_SH_GOTFUNCDESC20) | |
4558 | { | |
4559 | r = install_movi20_field (output_bfd, relocation + addend, | |
4560 | input_bfd, input_section, contents, | |
4561 | rel->r_offset); | |
4562 | break; | |
4563 | } | |
4564 | else | |
4565 | goto final_link_relocate; | |
4566 | } | |
4567 | break; | |
4568 | ||
4569 | case R_SH_GOTOFFFUNCDESC: | |
4570 | case R_SH_GOTOFFFUNCDESC20: | |
4571 | /* FIXME: See R_SH_FUNCDESC comment about global symbols in the | |
4572 | executable and --export-dynamic. If such symbols get | |
4573 | ld.so-allocated descriptors we can not use R_SH_GOTOFFFUNCDESC | |
4574 | for them. */ | |
e0af1f53 | 4575 | BFD_ASSERT (htab); |
8e45593f NC |
4576 | |
4577 | check_segment[0] = check_segment[1] = -1; | |
4578 | relocation = 0; | |
4579 | addend = rel->r_addend; | |
4580 | ||
4581 | if (h && (h->root.type == bfd_link_hash_undefweak | |
4582 | || !SYMBOL_FUNCDESC_LOCAL (info, h))) | |
4583 | { | |
4584 | _bfd_error_handler | |
695344c0 | 4585 | /* xgettext:c-format */ |
2dcf00ce AM |
4586 | (_("%pB(%pA+%#" PRIx64 "): " |
4587 | "%s relocation against external symbol \"%s\""), | |
4588 | input_bfd, input_section, (uint64_t) rel->r_offset, | |
4589 | howto->name, h->root.root.string); | |
8e45593f NC |
4590 | return FALSE; |
4591 | } | |
4592 | else | |
4593 | { | |
4594 | bfd_vma offset; | |
4595 | ||
4596 | /* Otherwise, we know we have a private function | |
4597 | descriptor, so reference it directly. */ | |
4598 | if (h) | |
4599 | { | |
4600 | offset = sh_elf_hash_entry (h)->funcdesc.offset; | |
4601 | BFD_ASSERT (offset != MINUS_ONE); | |
4602 | if ((offset & 1) == 0) | |
4603 | { | |
4604 | if (!sh_elf_initialize_funcdesc (output_bfd, info, h, | |
4605 | offset, NULL, 0)) | |
4606 | return FALSE; | |
4607 | sh_elf_hash_entry (h)->funcdesc.offset |= 1; | |
4608 | } | |
4609 | } | |
4610 | else | |
4611 | { | |
4612 | union gotref *local_funcdesc; | |
4613 | ||
4614 | local_funcdesc = sh_elf_local_funcdesc (input_bfd); | |
4615 | offset = local_funcdesc[r_symndx].offset; | |
4616 | BFD_ASSERT (offset != MINUS_ONE); | |
4617 | if ((offset & 1) == 0) | |
4618 | { | |
4619 | if (!sh_elf_initialize_funcdesc (output_bfd, info, NULL, | |
4620 | offset, sec, | |
4621 | sym->st_value)) | |
4622 | return FALSE; | |
4623 | local_funcdesc[r_symndx].offset |= 1; | |
4624 | } | |
4625 | } | |
4626 | ||
4627 | relocation = htab->sfuncdesc->output_offset + (offset & ~1); | |
4628 | } | |
4629 | ||
e0af1f53 MR |
4630 | relocation -= (htab->root.hgot->root.u.def.value |
4631 | + sgotplt->output_offset); | |
8e45593f NC |
4632 | #ifdef GOT_BIAS |
4633 | relocation -= GOT_BIAS; | |
4634 | #endif | |
4635 | ||
4636 | if (r_type == R_SH_GOTOFFFUNCDESC20) | |
4637 | { | |
4638 | r = install_movi20_field (output_bfd, relocation + addend, | |
4639 | input_bfd, input_section, contents, | |
4640 | rel->r_offset); | |
4641 | break; | |
4642 | } | |
4643 | else | |
4644 | goto final_link_relocate; | |
4645 | ||
37c644f2 AO |
4646 | case R_SH_LOOP_START: |
4647 | { | |
4648 | static bfd_vma start, end; | |
4649 | ||
4650 | start = (relocation + rel->r_addend | |
4651 | - (sec->output_section->vma + sec->output_offset)); | |
4652 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
4653 | rel->r_offset, sec, start, end); | |
4654 | break; | |
4655 | ||
4656 | case R_SH_LOOP_END: | |
4657 | end = (relocation + rel->r_addend | |
4658 | - (sec->output_section->vma + sec->output_offset)); | |
4659 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
4660 | rel->r_offset, sec, start, end); | |
4661 | break; | |
4662 | } | |
3376eaf5 KK |
4663 | |
4664 | case R_SH_TLS_GD_32: | |
4665 | case R_SH_TLS_IE_32: | |
e0af1f53 | 4666 | BFD_ASSERT (htab); |
8e45593f | 4667 | check_segment[0] = check_segment[1] = -1; |
3376eaf5 | 4668 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); |
8e45593f | 4669 | got_type = GOT_UNKNOWN; |
3376eaf5 | 4670 | if (h == NULL && local_got_offsets) |
8e45593f | 4671 | got_type = sh_elf_local_got_type (input_bfd) [r_symndx]; |
3376eaf5 KK |
4672 | else if (h != NULL) |
4673 | { | |
8e45593f | 4674 | got_type = sh_elf_hash_entry (h)->got_type; |
0e1862bb | 4675 | if (! bfd_link_pic (info) |
3376eaf5 | 4676 | && (h->dynindx == -1 |
f5385ebf | 4677 | || h->def_regular)) |
267fb3c1 | 4678 | r_type = R_SH_TLS_LE_32; |
3376eaf5 KK |
4679 | } |
4680 | ||
8e45593f | 4681 | if (r_type == R_SH_TLS_GD_32 && got_type == GOT_TLS_IE) |
3376eaf5 KK |
4682 | r_type = R_SH_TLS_IE_32; |
4683 | ||
4684 | if (r_type == R_SH_TLS_LE_32) | |
4685 | { | |
4686 | bfd_vma offset; | |
4687 | unsigned short insn; | |
3376eaf5 KK |
4688 | |
4689 | if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32) | |
4690 | { | |
4691 | /* GD->LE transition: | |
4692 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
b34976b6 | 4693 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; |
3376eaf5 KK |
4694 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: |
4695 | We change it into: | |
4696 | mov.l 1f,r4; stc gbr,r0; add r4,r0; nop; | |
4697 | nop; nop; ... | |
4698 | 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */ | |
4699 | ||
4700 | offset = rel->r_offset; | |
a05b9f5e NC |
4701 | if (offset < 16) |
4702 | { | |
4703 | _bfd_error_handler | |
4704 | /* xgettext:c-format */ | |
4705 | (_("%pB(%pA): offset in relocation for GD->LE translation is too small: %#" PRIx64), | |
4706 | input_bfd, input_section, (uint64_t) offset); | |
4707 | return FALSE; | |
4708 | } | |
4709 | ||
3376eaf5 KK |
4710 | /* Size of GD instructions is 16 or 18. */ |
4711 | offset -= 16; | |
4712 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4713 | if ((insn & 0xff00) == 0xc700) | |
4714 | { | |
4715 | BFD_ASSERT (offset >= 2); | |
4716 | offset -= 2; | |
4717 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4718 | } | |
4719 | ||
a05b9f5e NC |
4720 | if ((insn & 0xff00) != 0xd400) |
4721 | _bfd_error_handler | |
4722 | /* xgettext:c-format */ /* The backslash is to prevent bogus trigraph detection. */ | |
4723 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd4?\?)"), | |
4724 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4725 | ||
3376eaf5 | 4726 | insn = bfd_get_16 (input_bfd, contents + offset + 2); |
a05b9f5e NC |
4727 | |
4728 | if ((insn & 0xff00) != 0xc700) | |
4729 | _bfd_error_handler | |
4730 | /* xgettext:c-format */ | |
4731 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xc7?\?)"), | |
4732 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4733 | ||
3376eaf5 | 4734 | insn = bfd_get_16 (input_bfd, contents + offset + 4); |
a05b9f5e NC |
4735 | if ((insn & 0xff00) != 0xd100) |
4736 | _bfd_error_handler | |
4737 | /* xgettext:c-format */ | |
4738 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd1?\?)"), | |
4739 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4740 | ||
3376eaf5 | 4741 | insn = bfd_get_16 (input_bfd, contents + offset + 6); |
a05b9f5e NC |
4742 | if (insn != 0x310c) |
4743 | _bfd_error_handler | |
4744 | /* xgettext:c-format */ | |
4745 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x310c)"), | |
4746 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4747 | ||
3376eaf5 | 4748 | insn = bfd_get_16 (input_bfd, contents + offset + 8); |
a05b9f5e NC |
4749 | if (insn != 0x410b) |
4750 | _bfd_error_handler | |
4751 | /* xgettext:c-format */ | |
4752 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x410b)"), | |
4753 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4754 | ||
3376eaf5 | 4755 | insn = bfd_get_16 (input_bfd, contents + offset + 10); |
a05b9f5e NC |
4756 | if (insn != 0x34cc) |
4757 | _bfd_error_handler | |
4758 | /* xgettext:c-format */ | |
4759 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x34cc)"), | |
4760 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
3376eaf5 KK |
4761 | |
4762 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 2); | |
4763 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 4); | |
4764 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
4765 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4766 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4767 | } | |
4768 | else | |
4769 | { | |
91d6fa6a | 4770 | int target; |
3376eaf5 KK |
4771 | |
4772 | /* IE->LE transition: | |
a05b9f5e NC |
4773 | mov.l 1f,r0; |
4774 | stc gbr,rN; | |
4775 | mov.l @(r0,r12),rM; | |
4776 | bra 2f; | |
4777 | add ...; | |
4778 | .align 2; | |
4779 | 1: x@GOTTPOFF; | |
4780 | 2: | |
3376eaf5 | 4781 | We change it into: |
a05b9f5e NC |
4782 | mov.l .Ln,rM; |
4783 | stc gbr,rN; | |
4784 | nop; | |
4785 | ...; | |
4786 | 1: x@TPOFF; | |
4787 | 2:. */ | |
3376eaf5 KK |
4788 | |
4789 | offset = rel->r_offset; | |
a05b9f5e NC |
4790 | if (offset < 16) |
4791 | { | |
4792 | _bfd_error_handler | |
4793 | /* xgettext:c-format */ | |
4794 | (_("%pB(%pA): offset in relocation for IE->LE translation is too small: %#" PRIx64), | |
4795 | input_bfd, input_section, (uint64_t) offset); | |
4796 | return FALSE; | |
4797 | } | |
4798 | ||
3376eaf5 KK |
4799 | /* Size of IE instructions is 10 or 12. */ |
4800 | offset -= 10; | |
4801 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4802 | if ((insn & 0xf0ff) == 0x0012) | |
4803 | { | |
4804 | BFD_ASSERT (offset >= 2); | |
4805 | offset -= 2; | |
4806 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4807 | } | |
4808 | ||
a05b9f5e NC |
4809 | if ((insn & 0xff00) != 0xd000) |
4810 | _bfd_error_handler | |
4811 | /* xgettext:c-format */ | |
4812 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0xd0??: mov.l)"), | |
4813 | input_bfd, input_section, (uint64_t) offset, (int) insn); | |
4814 | ||
91d6fa6a | 4815 | target = insn & 0x00ff; |
a05b9f5e | 4816 | |
3376eaf5 | 4817 | insn = bfd_get_16 (input_bfd, contents + offset + 2); |
a05b9f5e NC |
4818 | if ((insn & 0xf0ff) != 0x0012) |
4819 | _bfd_error_handler | |
4820 | /* xgettext:c-format */ | |
4821 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?12: stc)"), | |
4822 | input_bfd, input_section, (uint64_t) (offset + 2), (int) insn); | |
4823 | ||
3376eaf5 | 4824 | insn = bfd_get_16 (input_bfd, contents + offset + 4); |
a05b9f5e NC |
4825 | if ((insn & 0xf0ff) != 0x00ce) |
4826 | _bfd_error_handler | |
4827 | /* xgettext:c-format */ | |
4828 | (_("%pB(%pA+%#" PRIx64 "): unexpected instruction %#04X (expected 0x0?ce: mov.l)"), | |
4829 | input_bfd, input_section, (uint64_t) (offset + 4), (int) insn); | |
4830 | ||
91d6fa6a | 4831 | insn = 0xd000 | (insn & 0x0f00) | target; |
3376eaf5 KK |
4832 | bfd_put_16 (output_bfd, insn, contents + offset + 0); |
4833 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
4834 | } | |
4835 | ||
267fb3c1 KK |
4836 | bfd_put_32 (output_bfd, tpoff (info, relocation), |
4837 | contents + rel->r_offset); | |
3376eaf5 KK |
4838 | continue; |
4839 | } | |
4840 | ||
8e45593f | 4841 | if (sgot == NULL || sgotplt == NULL) |
3376eaf5 KK |
4842 | abort (); |
4843 | ||
4844 | if (h != NULL) | |
4845 | off = h->got.offset; | |
4846 | else | |
4847 | { | |
4848 | if (local_got_offsets == NULL) | |
4849 | abort (); | |
4850 | ||
4851 | off = local_got_offsets[r_symndx]; | |
4852 | } | |
4853 | ||
267fb3c1 KK |
4854 | /* Relocate R_SH_TLS_IE_32 directly when statically linking. */ |
4855 | if (r_type == R_SH_TLS_IE_32 | |
4856 | && ! htab->root.dynamic_sections_created) | |
4857 | { | |
4858 | off &= ~1; | |
4859 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
4860 | sgot->contents + off); | |
8e45593f | 4861 | bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off, |
267fb3c1 KK |
4862 | contents + rel->r_offset); |
4863 | continue; | |
4864 | } | |
4865 | ||
3376eaf5 KK |
4866 | if ((off & 1) != 0) |
4867 | off &= ~1; | |
26e41594 | 4868 | else |
3376eaf5 KK |
4869 | { |
4870 | Elf_Internal_Rela outrel; | |
947216bf | 4871 | bfd_byte *loc; |
3376eaf5 KK |
4872 | int dr_type, indx; |
4873 | ||
3376eaf5 KK |
4874 | outrel.r_offset = (sgot->output_section->vma |
4875 | + sgot->output_offset + off); | |
4876 | ||
267fb3c1 | 4877 | if (h == NULL || h->dynindx == -1) |
c95b8a7a KK |
4878 | indx = 0; |
4879 | else | |
4880 | indx = h->dynindx; | |
267fb3c1 | 4881 | |
3376eaf5 KK |
4882 | dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 : |
4883 | R_SH_TLS_TPOFF32); | |
4884 | if (dr_type == R_SH_TLS_TPOFF32 && indx == 0) | |
4885 | outrel.r_addend = relocation - dtpoff_base (info); | |
4886 | else | |
4887 | outrel.r_addend = 0; | |
4888 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
947216bf AM |
4889 | loc = srelgot->contents; |
4890 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
4891 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
4892 | ||
4893 | if (r_type == R_SH_TLS_GD_32) | |
4894 | { | |
4895 | if (indx == 0) | |
4896 | { | |
4897 | bfd_put_32 (output_bfd, | |
4898 | relocation - dtpoff_base (info), | |
4899 | sgot->contents + off + 4); | |
4900 | } | |
4901 | else | |
4902 | { | |
4903 | outrel.r_info = ELF32_R_INFO (indx, | |
4904 | R_SH_TLS_DTPOFF32); | |
4905 | outrel.r_offset += 4; | |
4906 | outrel.r_addend = 0; | |
4907 | srelgot->reloc_count++; | |
947216bf AM |
4908 | loc += sizeof (Elf32_External_Rela); |
4909 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
4910 | } |
4911 | } | |
4912 | ||
4913 | if (h != NULL) | |
4914 | h->got.offset |= 1; | |
4915 | else | |
4916 | local_got_offsets[r_symndx] |= 1; | |
4917 | } | |
4918 | ||
4919 | if (off >= (bfd_vma) -2) | |
4920 | abort (); | |
4921 | ||
4922 | if (r_type == (int) ELF32_R_TYPE (rel->r_info)) | |
8e45593f | 4923 | relocation = sh_elf_got_offset (htab) + off; |
3376eaf5 KK |
4924 | else |
4925 | { | |
4926 | bfd_vma offset; | |
4927 | unsigned short insn; | |
4928 | ||
4929 | /* GD->IE transition: | |
4930 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
4931 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
4932 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: | |
4933 | We change it into: | |
4934 | mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0; | |
4935 | nop; nop; bra 3f; nop; .align 2; | |
4936 | 1: .long x@TPOFF; 2:...; 3:. */ | |
4937 | ||
4938 | offset = rel->r_offset; | |
a05b9f5e NC |
4939 | if (offset < 16) |
4940 | { | |
4941 | _bfd_error_handler | |
4942 | /* xgettext:c-format */ | |
4943 | (_("%pB(%pA): offset in relocation for GD->IE translation is too small: %#" PRIx64), | |
4944 | input_bfd, input_section, (uint64_t) offset); | |
4945 | return FALSE; | |
4946 | } | |
4947 | ||
3376eaf5 KK |
4948 | /* Size of GD instructions is 16 or 18. */ |
4949 | offset -= 16; | |
4950 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4951 | if ((insn & 0xff00) == 0xc700) | |
4952 | { | |
4953 | BFD_ASSERT (offset >= 2); | |
4954 | offset -= 2; | |
4955 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4956 | } | |
4957 | ||
4958 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
4959 | ||
4960 | /* Replace mov.l 1f,R4 with mov.l 1f,r0. */ | |
4961 | bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset); | |
4962 | ||
4963 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4964 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
4965 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4966 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
4967 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
4968 | BFD_ASSERT (insn == 0x310c); | |
4969 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
4970 | BFD_ASSERT (insn == 0x410b); | |
4971 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
4972 | BFD_ASSERT (insn == 0x34cc); | |
4973 | ||
4974 | bfd_put_16 (output_bfd, 0x0412, contents + offset + 2); | |
4975 | bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4); | |
4976 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 6); | |
4977 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4978 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4979 | ||
8e45593f | 4980 | bfd_put_32 (output_bfd, sh_elf_got_offset (htab) + off, |
3376eaf5 KK |
4981 | contents + rel->r_offset); |
4982 | ||
4983 | continue; | |
4984 | } | |
4985 | ||
4986 | addend = rel->r_addend; | |
4987 | ||
4988 | goto final_link_relocate; | |
4989 | ||
4990 | case R_SH_TLS_LD_32: | |
e0af1f53 | 4991 | BFD_ASSERT (htab); |
8e45593f | 4992 | check_segment[0] = check_segment[1] = -1; |
0e1862bb | 4993 | if (! bfd_link_pic (info)) |
3376eaf5 KK |
4994 | { |
4995 | bfd_vma offset; | |
4996 | unsigned short insn; | |
4997 | ||
4998 | /* LD->LE transition: | |
4999 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
5000 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
5001 | 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3: | |
5002 | We change it into: | |
5003 | stc gbr,r0; nop; nop; nop; | |
5004 | nop; nop; bra 3f; ...; 3:. */ | |
5005 | ||
5006 | offset = rel->r_offset; | |
a05b9f5e NC |
5007 | if (offset < 16) |
5008 | { | |
5009 | _bfd_error_handler | |
5010 | /* xgettext:c-format */ | |
5011 | (_("%pB(%pA): offset in relocation for LD->LE translation is too small: %#" PRIx64), | |
5012 | input_bfd, input_section, (uint64_t) offset); | |
5013 | return FALSE; | |
5014 | } | |
5015 | ||
3376eaf5 KK |
5016 | /* Size of LD instructions is 16 or 18. */ |
5017 | offset -= 16; | |
5018 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
5019 | if ((insn & 0xff00) == 0xc700) | |
5020 | { | |
5021 | BFD_ASSERT (offset >= 2); | |
5022 | offset -= 2; | |
5023 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
5024 | } | |
5025 | ||
5026 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
5027 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
5028 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
5029 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
5030 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
5031 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
5032 | BFD_ASSERT (insn == 0x310c); | |
5033 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
5034 | BFD_ASSERT (insn == 0x410b); | |
5035 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
5036 | BFD_ASSERT (insn == 0x34cc); | |
5037 | ||
5038 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 0); | |
5039 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 2); | |
5040 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
5041 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
5042 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
5043 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
5044 | ||
5045 | continue; | |
5046 | } | |
5047 | ||
8e45593f | 5048 | if (sgot == NULL || sgotplt == NULL) |
3376eaf5 KK |
5049 | abort (); |
5050 | ||
5051 | off = htab->tls_ldm_got.offset; | |
5052 | if (off & 1) | |
5053 | off &= ~1; | |
5054 | else | |
5055 | { | |
5056 | Elf_Internal_Rela outrel; | |
947216bf | 5057 | bfd_byte *loc; |
3376eaf5 | 5058 | |
3376eaf5 KK |
5059 | outrel.r_offset = (sgot->output_section->vma |
5060 | + sgot->output_offset + off); | |
5061 | outrel.r_addend = 0; | |
5062 | outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32); | |
947216bf AM |
5063 | loc = srelgot->contents; |
5064 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
5065 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
5066 | htab->tls_ldm_got.offset |= 1; | |
5067 | } | |
5068 | ||
8e45593f | 5069 | relocation = sh_elf_got_offset (htab) + off; |
3376eaf5 KK |
5070 | addend = rel->r_addend; |
5071 | ||
5072 | goto final_link_relocate; | |
5073 | ||
5074 | case R_SH_TLS_LDO_32: | |
8e45593f | 5075 | check_segment[0] = check_segment[1] = -1; |
0e1862bb | 5076 | if (! bfd_link_pic (info)) |
267fb3c1 | 5077 | relocation = tpoff (info, relocation); |
3376eaf5 KK |
5078 | else |
5079 | relocation -= dtpoff_base (info); | |
5080 | ||
5081 | addend = rel->r_addend; | |
5082 | goto final_link_relocate; | |
5083 | ||
5084 | case R_SH_TLS_LE_32: | |
5085 | { | |
5086 | int indx; | |
5087 | Elf_Internal_Rela outrel; | |
947216bf | 5088 | bfd_byte *loc; |
3376eaf5 | 5089 | |
8e45593f NC |
5090 | check_segment[0] = check_segment[1] = -1; |
5091 | ||
3cbc1e5e | 5092 | if (!bfd_link_dll (info)) |
267fb3c1 KK |
5093 | { |
5094 | relocation = tpoff (info, relocation); | |
5095 | addend = rel->r_addend; | |
5096 | goto final_link_relocate; | |
5097 | } | |
5098 | ||
3376eaf5 KK |
5099 | if (sreloc == NULL) |
5100 | { | |
83bac4b0 NC |
5101 | sreloc = _bfd_elf_get_dynamic_reloc_section |
5102 | (input_bfd, input_section, /*rela?*/ TRUE); | |
5103 | if (sreloc == NULL) | |
b34976b6 | 5104 | return FALSE; |
3376eaf5 KK |
5105 | } |
5106 | ||
267fb3c1 KK |
5107 | if (h == NULL || h->dynindx == -1) |
5108 | indx = 0; | |
5109 | else | |
5110 | indx = h->dynindx; | |
5111 | ||
3376eaf5 KK |
5112 | outrel.r_offset = (input_section->output_section->vma |
5113 | + input_section->output_offset | |
5114 | + rel->r_offset); | |
5115 | outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32); | |
5116 | if (indx == 0) | |
5117 | outrel.r_addend = relocation - dtpoff_base (info); | |
5118 | else | |
5119 | outrel.r_addend = 0; | |
3376eaf5 | 5120 | |
947216bf AM |
5121 | loc = sreloc->contents; |
5122 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
5123 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
5124 | continue; |
5125 | } | |
37c644f2 AO |
5126 | } |
5127 | ||
146be91a | 5128 | relocation_done: |
e0af1f53 | 5129 | if (fdpic_p && check_segment[0] != (unsigned) -1 |
8e45593f NC |
5130 | && check_segment[0] != check_segment[1]) |
5131 | { | |
5132 | /* We don't want duplicate errors for undefined symbols. */ | |
5133 | if (!h || h->root.type != bfd_link_hash_undefined) | |
5134 | { | |
0e1862bb | 5135 | if (bfd_link_pic (info)) |
8e45593f NC |
5136 | { |
5137 | info->callbacks->einfo | |
695344c0 | 5138 | /* xgettext:c-format */ |
8e45593f NC |
5139 | (_("%X%C: relocation to \"%s\" references a different segment\n"), |
5140 | input_bfd, input_section, rel->r_offset, symname); | |
5141 | return FALSE; | |
5142 | } | |
5143 | else | |
5144 | info->callbacks->einfo | |
695344c0 | 5145 | /* xgettext:c-format */ |
8e45593f NC |
5146 | (_("%C: warning: relocation to \"%s\" references a different segment\n"), |
5147 | input_bfd, input_section, rel->r_offset, symname); | |
5148 | } | |
5149 | ||
fbedb42d | 5150 | elf_elfheader (output_bfd)->e_flags |= EF_SH_PIC; |
8e45593f NC |
5151 | } |
5152 | ||
37c644f2 AO |
5153 | if (r != bfd_reloc_ok) |
5154 | { | |
5155 | switch (r) | |
5156 | { | |
5157 | default: | |
5158 | case bfd_reloc_outofrange: | |
5159 | abort (); | |
5160 | case bfd_reloc_overflow: | |
5161 | { | |
5162 | const char *name; | |
5163 | ||
5164 | if (h != NULL) | |
dfeffb9f | 5165 | name = NULL; |
37c644f2 AO |
5166 | else |
5167 | { | |
252b5132 RH |
5168 | name = (bfd_elf_string_from_elf_section |
5169 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
5170 | if (name == NULL) | |
b34976b6 | 5171 | return FALSE; |
252b5132 RH |
5172 | if (*name == '\0') |
5173 | name = bfd_section_name (input_bfd, sec); | |
5174 | } | |
1a72702b AM |
5175 | (*info->callbacks->reloc_overflow) |
5176 | (info, (h ? &h->root : NULL), name, howto->name, | |
5177 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
252b5132 RH |
5178 | } |
5179 | break; | |
5180 | } | |
5181 | } | |
5182 | } | |
5183 | ||
b34976b6 | 5184 | return TRUE; |
252b5132 RH |
5185 | } |
5186 | ||
5187 | /* This is a version of bfd_generic_get_relocated_section_contents | |
5188 | which uses sh_elf_relocate_section. */ | |
5189 | ||
5190 | static bfd_byte * | |
09fd220b KK |
5191 | sh_elf_get_relocated_section_contents (bfd *output_bfd, |
5192 | struct bfd_link_info *link_info, | |
5193 | struct bfd_link_order *link_order, | |
5194 | bfd_byte *data, | |
5195 | bfd_boolean relocatable, | |
5196 | asymbol **symbols) | |
252b5132 RH |
5197 | { |
5198 | Elf_Internal_Shdr *symtab_hdr; | |
5199 | asection *input_section = link_order->u.indirect.section; | |
5200 | bfd *input_bfd = input_section->owner; | |
5201 | asection **sections = NULL; | |
5202 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 5203 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 RH |
5204 | |
5205 | /* We only need to handle the case of relaxing, or of having a | |
5206 | particular set of section contents, specially. */ | |
1049f94e | 5207 | if (relocatable |
252b5132 RH |
5208 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
5209 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
5210 | link_order, data, | |
1049f94e | 5211 | relocatable, |
252b5132 RH |
5212 | symbols); |
5213 | ||
0ffa91dd | 5214 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
252b5132 RH |
5215 | |
5216 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 5217 | (size_t) input_section->size); |
252b5132 RH |
5218 | |
5219 | if ((input_section->flags & SEC_RELOC) != 0 | |
5220 | && input_section->reloc_count > 0) | |
5221 | { | |
252b5132 | 5222 | asection **secpp; |
6cdc0ccc | 5223 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 5224 | bfd_size_type amt; |
252b5132 | 5225 | |
45d6a902 | 5226 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 5227 | (input_bfd, input_section, NULL, |
b34976b6 | 5228 | (Elf_Internal_Rela *) NULL, FALSE)); |
252b5132 RH |
5229 | if (internal_relocs == NULL) |
5230 | goto error_return; | |
5231 | ||
6cdc0ccc AM |
5232 | if (symtab_hdr->sh_info != 0) |
5233 | { | |
5234 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
5235 | if (isymbuf == NULL) | |
5236 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
5237 | symtab_hdr->sh_info, 0, | |
5238 | NULL, NULL, NULL); | |
5239 | if (isymbuf == NULL) | |
5240 | goto error_return; | |
5241 | } | |
252b5132 | 5242 | |
9ad5cbcf AM |
5243 | amt = symtab_hdr->sh_info; |
5244 | amt *= sizeof (asection *); | |
5245 | sections = (asection **) bfd_malloc (amt); | |
5246 | if (sections == NULL && amt != 0) | |
252b5132 RH |
5247 | goto error_return; |
5248 | ||
6cdc0ccc AM |
5249 | isymend = isymbuf + symtab_hdr->sh_info; |
5250 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
252b5132 RH |
5251 | { |
5252 | asection *isec; | |
5253 | ||
6cdc0ccc | 5254 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 5255 | isec = bfd_und_section_ptr; |
6cdc0ccc | 5256 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 5257 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 5258 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
5259 | isec = bfd_com_section_ptr; |
5260 | else | |
6cdc0ccc | 5261 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
252b5132 RH |
5262 | |
5263 | *secpp = isec; | |
5264 | } | |
5265 | ||
5266 | if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd, | |
5267 | input_section, data, internal_relocs, | |
6cdc0ccc | 5268 | isymbuf, sections)) |
252b5132 RH |
5269 | goto error_return; |
5270 | ||
5271 | if (sections != NULL) | |
5272 | free (sections); | |
6cdc0ccc AM |
5273 | if (isymbuf != NULL |
5274 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5275 | free (isymbuf); | |
5276 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
252b5132 | 5277 | free (internal_relocs); |
252b5132 RH |
5278 | } |
5279 | ||
5280 | return data; | |
5281 | ||
5282 | error_return: | |
252b5132 RH |
5283 | if (sections != NULL) |
5284 | free (sections); | |
6cdc0ccc AM |
5285 | if (isymbuf != NULL |
5286 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
5287 | free (isymbuf); | |
5288 | if (internal_relocs != NULL | |
5289 | && elf_section_data (input_section)->relocs != internal_relocs) | |
5290 | free (internal_relocs); | |
252b5132 RH |
5291 | return NULL; |
5292 | } | |
917583ad | 5293 | |
3376eaf5 KK |
5294 | /* Return the base VMA address which should be subtracted from real addresses |
5295 | when resolving @dtpoff relocation. | |
5296 | This is PT_TLS segment p_vaddr. */ | |
5297 | ||
5298 | static bfd_vma | |
09fd220b | 5299 | dtpoff_base (struct bfd_link_info *info) |
3376eaf5 | 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 | 5303 | return 0; |
e1918d23 | 5304 | return elf_hash_table (info)->tls_sec->vma; |
3376eaf5 KK |
5305 | } |
5306 | ||
267fb3c1 KK |
5307 | /* Return the relocation value for R_SH_TLS_TPOFF32.. */ |
5308 | ||
5309 | static bfd_vma | |
09fd220b | 5310 | tpoff (struct bfd_link_info *info, bfd_vma address) |
267fb3c1 | 5311 | { |
e1918d23 AM |
5312 | /* If tls_sec is NULL, we should have signalled an error already. */ |
5313 | if (elf_hash_table (info)->tls_sec == NULL) | |
267fb3c1 KK |
5314 | return 0; |
5315 | /* SH TLS ABI is variant I and static TLS block start just after tcbhead | |
5316 | structure which has 2 pointer fields. */ | |
044ad7e3 KK |
5317 | return (address - elf_hash_table (info)->tls_sec->vma |
5318 | + align_power ((bfd_vma) 8, | |
5319 | elf_hash_table (info)->tls_sec->alignment_power)); | |
267fb3c1 KK |
5320 | } |
5321 | ||
252b5132 | 5322 | static asection * |
09fd220b | 5323 | sh_elf_gc_mark_hook (asection *sec, |
07adf181 AM |
5324 | struct bfd_link_info *info, |
5325 | Elf_Internal_Rela *rel, | |
5326 | struct elf_link_hash_entry *h, | |
09fd220b | 5327 | Elf_Internal_Sym *sym) |
252b5132 RH |
5328 | { |
5329 | if (h != NULL) | |
07adf181 AM |
5330 | switch (ELF32_R_TYPE (rel->r_info)) |
5331 | { | |
5332 | case R_SH_GNU_VTINHERIT: | |
5333 | case R_SH_GNU_VTENTRY: | |
5334 | return NULL; | |
5335 | } | |
9ad5cbcf | 5336 | |
07adf181 | 5337 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 RH |
5338 | } |
5339 | ||
067653c5 AM |
5340 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
5341 | ||
5342 | static void | |
fcfa13d2 | 5343 | sh_elf_copy_indirect_symbol (struct bfd_link_info *info, |
09fd220b KK |
5344 | struct elf_link_hash_entry *dir, |
5345 | struct elf_link_hash_entry *ind) | |
067653c5 AM |
5346 | { |
5347 | struct elf_sh_link_hash_entry *edir, *eind; | |
5348 | ||
5349 | edir = (struct elf_sh_link_hash_entry *) dir; | |
5350 | eind = (struct elf_sh_link_hash_entry *) ind; | |
5351 | ||
5352 | if (eind->dyn_relocs != NULL) | |
5353 | { | |
5354 | if (edir->dyn_relocs != NULL) | |
5355 | { | |
3bf083ed AM |
5356 | struct elf_dyn_relocs **pp; |
5357 | struct elf_dyn_relocs *p; | |
067653c5 | 5358 | |
fcfa13d2 | 5359 | /* Add reloc counts against the indirect sym to the direct sym |
067653c5 AM |
5360 | list. Merge any entries against the same section. */ |
5361 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
5362 | { | |
3bf083ed | 5363 | struct elf_dyn_relocs *q; |
067653c5 AM |
5364 | |
5365 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
5366 | if (q->sec == p->sec) | |
5367 | { | |
5368 | q->pc_count += p->pc_count; | |
5369 | q->count += p->count; | |
5370 | *pp = p->next; | |
5371 | break; | |
5372 | } | |
5373 | if (q == NULL) | |
5374 | pp = &p->next; | |
5375 | } | |
5376 | *pp = edir->dyn_relocs; | |
5377 | } | |
5378 | ||
5379 | edir->dyn_relocs = eind->dyn_relocs; | |
5380 | eind->dyn_relocs = NULL; | |
5381 | } | |
4989d792 SC |
5382 | edir->gotplt_refcount = eind->gotplt_refcount; |
5383 | eind->gotplt_refcount = 0; | |
8e45593f | 5384 | edir->funcdesc.refcount += eind->funcdesc.refcount; |
68ffbac6 | 5385 | eind->funcdesc.refcount = 0; |
8e45593f | 5386 | edir->abs_funcdesc_refcount += eind->abs_funcdesc_refcount; |
68ffbac6 | 5387 | eind->abs_funcdesc_refcount = 0; |
067653c5 | 5388 | |
3376eaf5 KK |
5389 | if (ind->root.type == bfd_link_hash_indirect |
5390 | && dir->got.refcount <= 0) | |
5391 | { | |
8e45593f NC |
5392 | edir->got_type = eind->got_type; |
5393 | eind->got_type = GOT_UNKNOWN; | |
3376eaf5 KK |
5394 | } |
5395 | ||
04e534c3 | 5396 | if (ind->root.type != bfd_link_hash_indirect |
f5385ebf AM |
5397 | && dir->dynamic_adjusted) |
5398 | { | |
5399 | /* If called to transfer flags for a weakdef during processing | |
5400 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
5401 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
e81830c5 AM |
5402 | if (dir->versioned != versioned_hidden) |
5403 | dir->ref_dynamic |= ind->ref_dynamic; | |
f5385ebf AM |
5404 | dir->ref_regular |= ind->ref_regular; |
5405 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
5406 | dir->needs_plt |= ind->needs_plt; | |
5407 | } | |
04e534c3 | 5408 | else |
fcfa13d2 | 5409 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
067653c5 AM |
5410 | } |
5411 | ||
3376eaf5 | 5412 | static int |
09fd220b KK |
5413 | sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type, |
5414 | int is_local) | |
3376eaf5 | 5415 | { |
0e1862bb | 5416 | if (bfd_link_pic (info)) |
3376eaf5 KK |
5417 | return r_type; |
5418 | ||
5419 | switch (r_type) | |
5420 | { | |
5421 | case R_SH_TLS_GD_32: | |
5422 | case R_SH_TLS_IE_32: | |
5423 | if (is_local) | |
5424 | return R_SH_TLS_LE_32; | |
5425 | return R_SH_TLS_IE_32; | |
5426 | case R_SH_TLS_LD_32: | |
5427 | return R_SH_TLS_LE_32; | |
5428 | } | |
5429 | ||
5430 | return r_type; | |
5431 | } | |
5432 | ||
252b5132 RH |
5433 | /* Look through the relocs for a section during the first phase. |
5434 | Since we don't do .gots or .plts, we just need to consider the | |
5435 | virtual table relocs for gc. */ | |
435b1e90 | 5436 | |
b34976b6 | 5437 | static bfd_boolean |
09fd220b KK |
5438 | sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, |
5439 | const Elf_Internal_Rela *relocs) | |
252b5132 RH |
5440 | { |
5441 | Elf_Internal_Shdr *symtab_hdr; | |
5582a088 | 5442 | struct elf_link_hash_entry **sym_hashes; |
067653c5 | 5443 | struct elf_sh_link_hash_table *htab; |
252b5132 RH |
5444 | const Elf_Internal_Rela *rel; |
5445 | const Elf_Internal_Rela *rel_end; | |
37c644f2 | 5446 | asection *sreloc; |
3376eaf5 | 5447 | unsigned int r_type; |
85e02784 | 5448 | enum got_type got_type, old_got_type; |
435b1e90 | 5449 | |
37c644f2 AO |
5450 | sreloc = NULL; |
5451 | ||
0e1862bb | 5452 | if (bfd_link_relocatable (info)) |
b34976b6 | 5453 | return TRUE; |
435b1e90 | 5454 | |
65281396 AM |
5455 | /* Don't do anything special with non-loaded, non-alloced sections. |
5456 | In particular, any relocs in such sections should not affect GOT | |
5457 | and PLT reference counting (ie. we don't allow them to create GOT | |
5458 | or PLT entries), there's no possibility or desire to optimize TLS | |
5459 | relocs, and there's not much point in propagating relocs to shared | |
5460 | libs that the dynamic linker won't relocate. */ | |
5461 | if ((sec->flags & SEC_ALLOC) == 0) | |
5462 | return TRUE; | |
5463 | ||
0ffa91dd NC |
5464 | BFD_ASSERT (is_sh_elf (abfd)); |
5465 | ||
5466 | symtab_hdr = &elf_symtab_hdr (abfd); | |
252b5132 | 5467 | sym_hashes = elf_sym_hashes (abfd); |
435b1e90 | 5468 | |
067653c5 | 5469 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
5470 | if (htab == NULL) |
5471 | return FALSE; | |
5472 | ||
252b5132 RH |
5473 | rel_end = relocs + sec->reloc_count; |
5474 | for (rel = relocs; rel < rel_end; rel++) | |
5475 | { | |
5476 | struct elf_link_hash_entry *h; | |
5477 | unsigned long r_symndx; | |
435b1e90 | 5478 | |
252b5132 | 5479 | r_symndx = ELF32_R_SYM (rel->r_info); |
3376eaf5 KK |
5480 | r_type = ELF32_R_TYPE (rel->r_info); |
5481 | ||
252b5132 | 5482 | if (r_symndx < symtab_hdr->sh_info) |
435b1e90 | 5483 | h = NULL; |
252b5132 | 5484 | else |
396a6083 SC |
5485 | { |
5486 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
396a6083 SC |
5487 | while (h->root.type == bfd_link_hash_indirect |
5488 | || h->root.type == bfd_link_hash_warning) | |
211dc24b | 5489 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
396a6083 | 5490 | } |
435b1e90 | 5491 | |
3376eaf5 | 5492 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); |
0e1862bb | 5493 | if (! bfd_link_pic (info) |
3376eaf5 KK |
5494 | && r_type == R_SH_TLS_IE_32 |
5495 | && h != NULL | |
5496 | && h->root.type != bfd_link_hash_undefined | |
5497 | && h->root.type != bfd_link_hash_undefweak | |
5498 | && (h->dynindx == -1 | |
f5385ebf | 5499 | || h->def_regular)) |
3376eaf5 KK |
5500 | r_type = R_SH_TLS_LE_32; |
5501 | ||
8e45593f NC |
5502 | if (htab->fdpic_p) |
5503 | switch (r_type) | |
5504 | { | |
5505 | case R_SH_GOTOFFFUNCDESC: | |
5506 | case R_SH_GOTOFFFUNCDESC20: | |
5507 | case R_SH_FUNCDESC: | |
5508 | case R_SH_GOTFUNCDESC: | |
5509 | case R_SH_GOTFUNCDESC20: | |
5510 | if (h != NULL) | |
5511 | { | |
5512 | if (h->dynindx == -1) | |
5513 | switch (ELF_ST_VISIBILITY (h->other)) | |
5514 | { | |
5515 | case STV_INTERNAL: | |
5516 | case STV_HIDDEN: | |
5517 | break; | |
5518 | default: | |
5519 | bfd_elf_link_record_dynamic_symbol (info, h); | |
5520 | break; | |
5521 | } | |
5522 | } | |
5523 | break; | |
5524 | } | |
5525 | ||
37c644f2 | 5526 | /* Some relocs require a global offset table. */ |
ce558b89 | 5527 | if (htab->root.sgot == NULL) |
37c644f2 | 5528 | { |
3376eaf5 | 5529 | switch (r_type) |
37c644f2 | 5530 | { |
8e45593f NC |
5531 | case R_SH_DIR32: |
5532 | /* This may require an rofixup. */ | |
5533 | if (!htab->fdpic_p) | |
5534 | break; | |
1a0670f3 | 5535 | /* Fall through. */ |
fbca6ad9 | 5536 | case R_SH_GOTPLT32: |
37c644f2 | 5537 | case R_SH_GOT32: |
8e45593f | 5538 | case R_SH_GOT20: |
37c644f2 | 5539 | case R_SH_GOTOFF: |
8e45593f NC |
5540 | case R_SH_GOTOFF20: |
5541 | case R_SH_FUNCDESC: | |
5542 | case R_SH_GOTFUNCDESC: | |
5543 | case R_SH_GOTFUNCDESC20: | |
5544 | case R_SH_GOTOFFFUNCDESC: | |
5545 | case R_SH_GOTOFFFUNCDESC20: | |
37c644f2 | 5546 | case R_SH_GOTPC: |
3376eaf5 KK |
5547 | case R_SH_TLS_GD_32: |
5548 | case R_SH_TLS_LD_32: | |
5549 | case R_SH_TLS_IE_32: | |
8e45593f NC |
5550 | if (htab->root.dynobj == NULL) |
5551 | htab->root.dynobj = abfd; | |
5552 | if (!create_got_section (htab->root.dynobj, info)) | |
5553 | return FALSE; | |
37c644f2 AO |
5554 | break; |
5555 | ||
5556 | default: | |
5557 | break; | |
5558 | } | |
5559 | } | |
5560 | ||
3376eaf5 | 5561 | switch (r_type) |
067653c5 AM |
5562 | { |
5563 | /* This relocation describes the C++ object vtable hierarchy. | |
5564 | Reconstruct it for later use during GC. */ | |
435b1e90 | 5565 | case R_SH_GNU_VTINHERIT: |
c152c796 | 5566 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 5567 | return FALSE; |
435b1e90 KH |
5568 | break; |
5569 | ||
067653c5 AM |
5570 | /* This relocation describes which C++ vtable entries are actually |
5571 | used. Record for later use during GC. */ | |
435b1e90 | 5572 | case R_SH_GNU_VTENTRY: |
a0ea3a14 | 5573 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) |
b34976b6 | 5574 | return FALSE; |
435b1e90 | 5575 | break; |
37c644f2 | 5576 | |
3376eaf5 | 5577 | case R_SH_TLS_IE_32: |
0e1862bb | 5578 | if (bfd_link_pic (info)) |
3376eaf5 KK |
5579 | info->flags |= DF_STATIC_TLS; |
5580 | ||
5581 | /* FALLTHROUGH */ | |
267fb3c1 | 5582 | force_got: |
3376eaf5 | 5583 | case R_SH_TLS_GD_32: |
37c644f2 | 5584 | case R_SH_GOT32: |
8e45593f | 5585 | case R_SH_GOT20: |
8e45593f NC |
5586 | case R_SH_GOTFUNCDESC: |
5587 | case R_SH_GOTFUNCDESC20: | |
3376eaf5 KK |
5588 | switch (r_type) |
5589 | { | |
5590 | default: | |
8e45593f | 5591 | got_type = GOT_NORMAL; |
3376eaf5 KK |
5592 | break; |
5593 | case R_SH_TLS_GD_32: | |
8e45593f | 5594 | got_type = GOT_TLS_GD; |
3376eaf5 KK |
5595 | break; |
5596 | case R_SH_TLS_IE_32: | |
8e45593f NC |
5597 | got_type = GOT_TLS_IE; |
5598 | break; | |
5599 | case R_SH_GOTFUNCDESC: | |
5600 | case R_SH_GOTFUNCDESC20: | |
5601 | got_type = GOT_FUNCDESC; | |
3376eaf5 KK |
5602 | break; |
5603 | } | |
5604 | ||
37c644f2 | 5605 | if (h != NULL) |
3376eaf5 | 5606 | { |
211dc24b | 5607 | h->got.refcount += 1; |
8e45593f | 5608 | old_got_type = sh_elf_hash_entry (h)->got_type; |
3376eaf5 | 5609 | } |
37c644f2 AO |
5610 | else |
5611 | { | |
067653c5 AM |
5612 | bfd_signed_vma *local_got_refcounts; |
5613 | ||
435b1e90 | 5614 | /* This is a global offset table entry for a local |
067653c5 AM |
5615 | symbol. */ |
5616 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
5617 | if (local_got_refcounts == NULL) | |
37c644f2 | 5618 | { |
dc810e39 | 5619 | bfd_size_type size; |
37c644f2 | 5620 | |
dc810e39 | 5621 | size = symtab_hdr->sh_info; |
067653c5 | 5622 | size *= sizeof (bfd_signed_vma); |
3376eaf5 | 5623 | size += symtab_hdr->sh_info; |
067653c5 AM |
5624 | local_got_refcounts = ((bfd_signed_vma *) |
5625 | bfd_zalloc (abfd, size)); | |
5626 | if (local_got_refcounts == NULL) | |
b34976b6 | 5627 | return FALSE; |
067653c5 | 5628 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
8e45593f | 5629 | sh_elf_local_got_type (abfd) |
3376eaf5 | 5630 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); |
37c644f2 | 5631 | } |
211dc24b | 5632 | local_got_refcounts[r_symndx] += 1; |
8e45593f | 5633 | old_got_type = sh_elf_local_got_type (abfd) [r_symndx]; |
3376eaf5 KK |
5634 | } |
5635 | ||
5636 | /* If a TLS symbol is accessed using IE at least once, | |
5637 | there is no point to use dynamic model for it. */ | |
8e45593f NC |
5638 | if (old_got_type != got_type && old_got_type != GOT_UNKNOWN |
5639 | && (old_got_type != GOT_TLS_GD || got_type != GOT_TLS_IE)) | |
3376eaf5 | 5640 | { |
8e45593f NC |
5641 | if (old_got_type == GOT_TLS_IE && got_type == GOT_TLS_GD) |
5642 | got_type = GOT_TLS_IE; | |
3376eaf5 KK |
5643 | else |
5644 | { | |
8e45593f NC |
5645 | if ((old_got_type == GOT_FUNCDESC || got_type == GOT_FUNCDESC) |
5646 | && (old_got_type == GOT_NORMAL || got_type == GOT_NORMAL)) | |
4eca0228 | 5647 | _bfd_error_handler |
695344c0 | 5648 | /* xgettext:c-format */ |
871b3ab2 | 5649 | (_("%pB: `%s' accessed both as normal and FDPIC symbol"), |
8e45593f NC |
5650 | abfd, h->root.root.string); |
5651 | else if (old_got_type == GOT_FUNCDESC | |
5652 | || got_type == GOT_FUNCDESC) | |
4eca0228 | 5653 | _bfd_error_handler |
695344c0 | 5654 | /* xgettext:c-format */ |
871b3ab2 | 5655 | (_("%pB: `%s' accessed both as FDPIC and thread local symbol"), |
8e45593f NC |
5656 | abfd, h->root.root.string); |
5657 | else | |
4eca0228 | 5658 | _bfd_error_handler |
695344c0 | 5659 | /* xgettext:c-format */ |
871b3ab2 | 5660 | (_("%pB: `%s' accessed both as normal and thread local symbol"), |
4eca0228 | 5661 | abfd, h->root.root.string); |
b34976b6 | 5662 | return FALSE; |
3376eaf5 KK |
5663 | } |
5664 | } | |
5665 | ||
8e45593f | 5666 | if (old_got_type != got_type) |
3376eaf5 KK |
5667 | { |
5668 | if (h != NULL) | |
8e45593f | 5669 | sh_elf_hash_entry (h)->got_type = got_type; |
3376eaf5 | 5670 | else |
8e45593f | 5671 | sh_elf_local_got_type (abfd) [r_symndx] = got_type; |
37c644f2 | 5672 | } |
3376eaf5 KK |
5673 | |
5674 | break; | |
5675 | ||
5676 | case R_SH_TLS_LD_32: | |
5677 | sh_elf_hash_table(info)->tls_ldm_got.refcount += 1; | |
37c644f2 AO |
5678 | break; |
5679 | ||
8e45593f NC |
5680 | case R_SH_FUNCDESC: |
5681 | case R_SH_GOTOFFFUNCDESC: | |
5682 | case R_SH_GOTOFFFUNCDESC20: | |
5683 | if (rel->r_addend) | |
5684 | { | |
4eca0228 | 5685 | _bfd_error_handler |
871b3ab2 | 5686 | (_("%pB: Function descriptor relocation with non-zero addend"), |
8e45593f NC |
5687 | abfd); |
5688 | return FALSE; | |
5689 | } | |
5690 | ||
5691 | if (h == NULL) | |
5692 | { | |
5693 | union gotref *local_funcdesc; | |
5694 | ||
5695 | /* We need a function descriptor for a local symbol. */ | |
5696 | local_funcdesc = sh_elf_local_funcdesc (abfd); | |
5697 | if (local_funcdesc == NULL) | |
5698 | { | |
5699 | bfd_size_type size; | |
5700 | ||
5701 | size = symtab_hdr->sh_info * sizeof (union gotref); | |
8e45593f NC |
5702 | local_funcdesc = (union gotref *) bfd_zalloc (abfd, size); |
5703 | if (local_funcdesc == NULL) | |
5704 | return FALSE; | |
5705 | sh_elf_local_funcdesc (abfd) = local_funcdesc; | |
5706 | } | |
5707 | local_funcdesc[r_symndx].refcount += 1; | |
5708 | ||
5709 | if (r_type == R_SH_FUNCDESC) | |
5710 | { | |
0e1862bb | 5711 | if (!bfd_link_pic (info)) |
8e45593f NC |
5712 | htab->srofixup->size += 4; |
5713 | else | |
ce558b89 | 5714 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
8e45593f NC |
5715 | } |
5716 | } | |
5717 | else | |
5718 | { | |
5719 | sh_elf_hash_entry (h)->funcdesc.refcount++; | |
5720 | if (r_type == R_SH_FUNCDESC) | |
5721 | sh_elf_hash_entry (h)->abs_funcdesc_refcount++; | |
5722 | ||
5723 | /* If there is a function descriptor reference, then | |
5724 | there should not be any non-FDPIC references. */ | |
5725 | old_got_type = sh_elf_hash_entry (h)->got_type; | |
5726 | if (old_got_type != GOT_FUNCDESC && old_got_type != GOT_UNKNOWN) | |
5727 | { | |
5728 | if (old_got_type == GOT_NORMAL) | |
4eca0228 | 5729 | _bfd_error_handler |
695344c0 | 5730 | /* xgettext:c-format */ |
871b3ab2 | 5731 | (_("%pB: `%s' accessed both as normal and FDPIC symbol"), |
8e45593f NC |
5732 | abfd, h->root.root.string); |
5733 | else | |
4eca0228 | 5734 | _bfd_error_handler |
695344c0 | 5735 | /* xgettext:c-format */ |
871b3ab2 | 5736 | (_("%pB: `%s' accessed both as FDPIC and thread local symbol"), |
8e45593f NC |
5737 | abfd, h->root.root.string); |
5738 | } | |
5739 | } | |
5740 | break; | |
5741 | ||
fbca6ad9 | 5742 | case R_SH_GOTPLT32: |
fbca6ad9 AO |
5743 | /* If this is a local symbol, we resolve it directly without |
5744 | creating a procedure linkage table entry. */ | |
5745 | ||
5746 | if (h == NULL | |
f5385ebf | 5747 | || h->forced_local |
0e1862bb | 5748 | || ! bfd_link_pic (info) |
fbca6ad9 | 5749 | || info->symbolic |
067653c5 | 5750 | || h->dynindx == -1) |
fbca6ad9 AO |
5751 | goto force_got; |
5752 | ||
f5385ebf | 5753 | h->needs_plt = 1; |
067653c5 | 5754 | h->plt.refcount += 1; |
4989d792 | 5755 | ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1; |
fbca6ad9 AO |
5756 | |
5757 | break; | |
5758 | ||
37c644f2 AO |
5759 | case R_SH_PLT32: |
5760 | /* This symbol requires a procedure linkage table entry. We | |
5761 | actually build the entry in adjust_dynamic_symbol, | |
5762 | because this might be a case of linking PIC code which is | |
5763 | never referenced by a dynamic object, in which case we | |
5764 | don't need to generate a procedure linkage table entry | |
5765 | after all. */ | |
5766 | ||
5767 | /* If this is a local symbol, we resolve it directly without | |
5768 | creating a procedure linkage table entry. */ | |
5769 | if (h == NULL) | |
5770 | continue; | |
5771 | ||
f5385ebf | 5772 | if (h->forced_local) |
37c644f2 AO |
5773 | break; |
5774 | ||
f5385ebf | 5775 | h->needs_plt = 1; |
067653c5 | 5776 | h->plt.refcount += 1; |
37c644f2 AO |
5777 | break; |
5778 | ||
5779 | case R_SH_DIR32: | |
5780 | case R_SH_REL32: | |
0e1862bb | 5781 | if (h != NULL && ! bfd_link_pic (info)) |
067653c5 | 5782 | { |
f5385ebf | 5783 | h->non_got_ref = 1; |
067653c5 AM |
5784 | h->plt.refcount += 1; |
5785 | } | |
37c644f2 AO |
5786 | |
5787 | /* If we are creating a shared library, and this is a reloc | |
5788 | against a global symbol, or a non PC relative reloc | |
5789 | against a local symbol, then we need to copy the reloc | |
5790 | into the shared library. However, if we are linking with | |
5791 | -Bsymbolic, we do not need to copy a reloc against a | |
5792 | global symbol which is defined in an object we are | |
5793 | including in the link (i.e., DEF_REGULAR is set). At | |
5794 | this point we have not seen all the input files, so it is | |
5795 | possible that DEF_REGULAR is not set now but will be set | |
5796 | later (it is never cleared). We account for that | |
5797 | possibility below by storing information in the | |
067653c5 AM |
5798 | dyn_relocs field of the hash table entry. A similar |
5799 | situation occurs when creating shared libraries and symbol | |
5800 | visibility changes render the symbol local. | |
5801 | ||
5802 | If on the other hand, we are creating an executable, we | |
5803 | may need to keep relocations for symbols satisfied by a | |
5804 | dynamic library if we manage to avoid copy relocs for the | |
5805 | symbol. */ | |
0e1862bb | 5806 | if ((bfd_link_pic (info) |
067653c5 | 5807 | && (sec->flags & SEC_ALLOC) != 0 |
3376eaf5 | 5808 | && (r_type != R_SH_REL32 |
067653c5 AM |
5809 | || (h != NULL |
5810 | && (! info->symbolic | |
5811 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5812 | || !h->def_regular)))) |
0e1862bb | 5813 | || (! bfd_link_pic (info) |
067653c5 AM |
5814 | && (sec->flags & SEC_ALLOC) != 0 |
5815 | && h != NULL | |
5816 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5817 | || !h->def_regular))) |
37c644f2 | 5818 | { |
3bf083ed AM |
5819 | struct elf_dyn_relocs *p; |
5820 | struct elf_dyn_relocs **head; | |
067653c5 | 5821 | |
2293c499 AM |
5822 | if (htab->root.dynobj == NULL) |
5823 | htab->root.dynobj = abfd; | |
067653c5 | 5824 | |
37c644f2 AO |
5825 | /* When creating a shared object, we must copy these |
5826 | reloc types into the output file. We create a reloc | |
5827 | section in dynobj and make room for this reloc. */ | |
5828 | if (sreloc == NULL) | |
5829 | { | |
83bac4b0 NC |
5830 | sreloc = _bfd_elf_make_dynamic_reloc_section |
5831 | (sec, htab->root.dynobj, 2, abfd, /*rela?*/ TRUE); | |
37c644f2 | 5832 | |
37c644f2 | 5833 | if (sreloc == NULL) |
83bac4b0 | 5834 | return FALSE; |
37c644f2 AO |
5835 | } |
5836 | ||
067653c5 AM |
5837 | /* If this is a global symbol, we count the number of |
5838 | relocations we need for this symbol. */ | |
5839 | if (h != NULL) | |
5840 | head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs; | |
5841 | else | |
37c644f2 | 5842 | { |
87d72d41 | 5843 | /* Track dynamic relocs needed for local syms too. */ |
067653c5 | 5844 | asection *s; |
6edfbbad | 5845 | void *vpp; |
87d72d41 | 5846 | Elf_Internal_Sym *isym; |
37c644f2 | 5847 | |
87d72d41 AM |
5848 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
5849 | abfd, r_symndx); | |
5850 | if (isym == NULL) | |
b34976b6 | 5851 | return FALSE; |
37c644f2 | 5852 | |
87d72d41 AM |
5853 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
5854 | if (s == NULL) | |
5855 | s = sec; | |
5856 | ||
6edfbbad | 5857 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 5858 | head = (struct elf_dyn_relocs **) vpp; |
067653c5 | 5859 | } |
37c644f2 | 5860 | |
067653c5 AM |
5861 | p = *head; |
5862 | if (p == NULL || p->sec != sec) | |
5863 | { | |
5864 | bfd_size_type amt = sizeof (*p); | |
2293c499 | 5865 | p = bfd_alloc (htab->root.dynobj, amt); |
37c644f2 | 5866 | if (p == NULL) |
b34976b6 | 5867 | return FALSE; |
067653c5 AM |
5868 | p->next = *head; |
5869 | *head = p; | |
5870 | p->sec = sec; | |
5871 | p->count = 0; | |
5872 | p->pc_count = 0; | |
37c644f2 | 5873 | } |
067653c5 AM |
5874 | |
5875 | p->count += 1; | |
211dc24b | 5876 | if (r_type == R_SH_REL32) |
067653c5 | 5877 | p->pc_count += 1; |
37c644f2 AO |
5878 | } |
5879 | ||
8e45593f NC |
5880 | /* Allocate the fixup regardless of whether we need a relocation. |
5881 | If we end up generating the relocation, we'll unallocate the | |
5882 | fixup. */ | |
0e1862bb | 5883 | if (htab->fdpic_p && !bfd_link_pic (info) |
8e45593f NC |
5884 | && r_type == R_SH_DIR32 |
5885 | && (sec->flags & SEC_ALLOC) != 0) | |
5886 | htab->srofixup->size += 4; | |
37c644f2 | 5887 | break; |
3376eaf5 KK |
5888 | |
5889 | case R_SH_TLS_LE_32: | |
3cbc1e5e | 5890 | if (bfd_link_dll (info)) |
3376eaf5 | 5891 | { |
4eca0228 | 5892 | _bfd_error_handler |
871b3ab2 | 5893 | (_("%pB: TLS local exec code cannot be linked into shared objects"), |
d003868e | 5894 | abfd); |
b34976b6 | 5895 | return FALSE; |
3376eaf5 KK |
5896 | } |
5897 | ||
267fb3c1 | 5898 | break; |
3376eaf5 | 5899 | |
3376eaf5 | 5900 | case R_SH_TLS_LDO_32: |
267fb3c1 | 5901 | /* Nothing to do. */ |
3376eaf5 KK |
5902 | break; |
5903 | ||
5904 | default: | |
5905 | break; | |
435b1e90 | 5906 | } |
252b5132 | 5907 | } |
435b1e90 | 5908 | |
b34976b6 | 5909 | return TRUE; |
252b5132 RH |
5910 | } |
5911 | ||
fbca6ad9 | 5912 | #ifndef sh_elf_set_mach_from_flags |
f6f9408f JR |
5913 | static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE }; |
5914 | ||
b34976b6 | 5915 | static bfd_boolean |
09fd220b | 5916 | sh_elf_set_mach_from_flags (bfd *abfd) |
d4845d57 | 5917 | { |
f6f9408f JR |
5918 | flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK; |
5919 | ||
f461bbd8 | 5920 | if (flags >= ARRAY_SIZE (sh_ef_bfd_table)) |
f6f9408f JR |
5921 | return FALSE; |
5922 | ||
5923 | if (sh_ef_bfd_table[flags] == 0) | |
5924 | return FALSE; | |
68ffbac6 | 5925 | |
f6f9408f | 5926 | bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]); |
d4845d57 | 5927 | |
b34976b6 | 5928 | return TRUE; |
d4845d57 | 5929 | } |
f6f9408f JR |
5930 | |
5931 | ||
5932 | /* Reverse table lookup for sh_ef_bfd_table[]. | |
5933 | Given a bfd MACH value from archures.c | |
5934 | return the equivalent ELF flags from the table. | |
5935 | Return -1 if no match is found. */ | |
5936 | ||
5937 | int | |
5938 | sh_elf_get_flags_from_mach (unsigned long mach) | |
5939 | { | |
4195f552 | 5940 | int i = ARRAY_SIZE (sh_ef_bfd_table) - 1; |
68ffbac6 | 5941 | |
f6f9408f JR |
5942 | for (; i>0; i--) |
5943 | if (sh_ef_bfd_table[i] == mach) | |
5944 | return i; | |
68ffbac6 | 5945 | |
f6f9408f JR |
5946 | /* shouldn't get here */ |
5947 | BFD_FAIL(); | |
5948 | ||
5949 | return -1; | |
5950 | } | |
fbca6ad9 | 5951 | #endif /* not sh_elf_set_mach_from_flags */ |
d4845d57 | 5952 | |
fbca6ad9 | 5953 | #ifndef sh_elf_copy_private_data |
d4845d57 | 5954 | /* Copy backend specific data from one object module to another */ |
435b1e90 | 5955 | |
b34976b6 | 5956 | static bfd_boolean |
09fd220b | 5957 | sh_elf_copy_private_data (bfd * ibfd, bfd * obfd) |
d4845d57 | 5958 | { |
0ffa91dd NC |
5959 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
5960 | return TRUE; | |
5961 | ||
e2349352 L |
5962 | if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd)) |
5963 | return FALSE; | |
5964 | ||
5965 | return sh_elf_set_mach_from_flags (obfd); | |
d4845d57 | 5966 | } |
fbca6ad9 | 5967 | #endif /* not sh_elf_copy_private_data */ |
d4845d57 | 5968 | |
fbca6ad9 | 5969 | #ifndef sh_elf_merge_private_data |
d4845d57 | 5970 | |
f6f9408f JR |
5971 | /* This function returns the ELF architecture number that |
5972 | corresponds to the given arch_sh* flags. */ | |
85fbca6a | 5973 | |
f6f9408f JR |
5974 | int |
5975 | sh_find_elf_flags (unsigned int arch_set) | |
d4845d57 | 5976 | { |
85fbca6a | 5977 | extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int); |
f6f9408f | 5978 | unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set); |
d4845d57 | 5979 | |
f6f9408f JR |
5980 | return sh_elf_get_flags_from_mach (bfd_mach); |
5981 | } | |
f6f9408f | 5982 | |
1047201f AM |
5983 | /* Merge the architecture type of two BFD files, such that the |
5984 | resultant architecture supports all the features required | |
5985 | by the two input BFDs. | |
5986 | If the input BFDs are multually incompatible - i.e. one uses | |
5987 | DSP while the other uses FPU - or there is no known architecture | |
5988 | that fits the requirements then an error is emitted. */ | |
5989 | ||
5990 | static bfd_boolean | |
50e03d47 | 5991 | sh_merge_bfd_arch (bfd *ibfd, struct bfd_link_info *info) |
1047201f | 5992 | { |
50e03d47 | 5993 | bfd *obfd = info->output_bfd; |
1047201f AM |
5994 | unsigned int old_arch, new_arch, merged_arch; |
5995 | ||
50e03d47 | 5996 | if (! _bfd_generic_verify_endian_match (ibfd, info)) |
1047201f AM |
5997 | return FALSE; |
5998 | ||
5999 | old_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (obfd)); | |
6000 | new_arch = sh_get_arch_up_from_bfd_mach (bfd_get_mach (ibfd)); | |
6001 | ||
6002 | merged_arch = SH_MERGE_ARCH_SET (old_arch, new_arch); | |
6003 | ||
6004 | if (!SH_VALID_CO_ARCH_SET (merged_arch)) | |
6005 | { | |
6006 | _bfd_error_handler | |
695344c0 | 6007 | /* xgettext:c-format */ |
871b3ab2 | 6008 | (_("%pB: uses %s instructions while previous modules " |
695344c0 | 6009 | "use %s instructions"), |
1047201f AM |
6010 | ibfd, |
6011 | SH_ARCH_SET_HAS_DSP (new_arch) ? "dsp" : "floating point", | |
6012 | SH_ARCH_SET_HAS_DSP (new_arch) ? "floating point" : "dsp"); | |
6013 | bfd_set_error (bfd_error_bad_value); | |
6014 | return FALSE; | |
6015 | } | |
6016 | else if (!SH_VALID_ARCH_SET (merged_arch)) | |
6017 | { | |
6018 | _bfd_error_handler | |
695344c0 NC |
6019 | /* xgettext:c-format */ |
6020 | (_("internal error: merge of architecture '%s' with " | |
6021 | "architecture '%s' produced unknown architecture"), | |
1047201f AM |
6022 | bfd_printable_name (obfd), |
6023 | bfd_printable_name (ibfd)); | |
6024 | bfd_set_error (bfd_error_bad_value); | |
6025 | return FALSE; | |
6026 | } | |
6027 | ||
6028 | bfd_default_set_arch_mach (obfd, bfd_arch_sh, | |
6029 | sh_get_bfd_mach_from_arch_set (merged_arch)); | |
6030 | ||
6031 | return TRUE; | |
6032 | } | |
6033 | ||
f6f9408f JR |
6034 | /* This routine initialises the elf flags when required and |
6035 | calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */ | |
d4845d57 | 6036 | |
f6f9408f | 6037 | static bfd_boolean |
50e03d47 | 6038 | sh_elf_merge_private_data (bfd *ibfd, struct bfd_link_info *info) |
f6f9408f | 6039 | { |
50e03d47 | 6040 | bfd *obfd = info->output_bfd; |
85fbca6a | 6041 | |
0ffa91dd | 6042 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
b34976b6 | 6043 | return TRUE; |
d4845d57 JR |
6044 | |
6045 | if (! elf_flags_init (obfd)) | |
6046 | { | |
a39b79b9 | 6047 | /* This happens when ld starts out with a 'blank' output file. */ |
b34976b6 | 6048 | elf_flags_init (obfd) = TRUE; |
8e45593f | 6049 | elf_elfheader (obfd)->e_flags = elf_elfheader (ibfd)->e_flags; |
f6f9408f | 6050 | sh_elf_set_mach_from_flags (obfd); |
8e45593f | 6051 | if (elf_elfheader (obfd)->e_flags & EF_SH_FDPIC) |
fbedb42d | 6052 | elf_elfheader (obfd)->e_flags &= ~EF_SH_PIC; |
d4845d57 | 6053 | } |
d4845d57 | 6054 | |
50e03d47 | 6055 | if (! sh_merge_bfd_arch (ibfd, info)) |
1d70c7fb | 6056 | { |
871b3ab2 | 6057 | _bfd_error_handler (_("%pB: uses instructions which are incompatible " |
695344c0 | 6058 | "with instructions used in previous modules"), |
d003868e | 6059 | ibfd); |
1d70c7fb AO |
6060 | bfd_set_error (bfd_error_bad_value); |
6061 | return FALSE; | |
6062 | } | |
f6f9408f | 6063 | |
8e45593f NC |
6064 | elf_elfheader (obfd)->e_flags &= ~EF_SH_MACH_MASK; |
6065 | elf_elfheader (obfd)->e_flags |= | |
f6f9408f | 6066 | sh_elf_get_flags_from_mach (bfd_get_mach (obfd)); |
8e45593f NC |
6067 | |
6068 | if (fdpic_object_p (ibfd) != fdpic_object_p (obfd)) | |
6069 | { | |
871b3ab2 | 6070 | _bfd_error_handler (_("%pB: attempt to mix FDPIC and non-FDPIC objects"), |
8e45593f NC |
6071 | ibfd); |
6072 | bfd_set_error (bfd_error_bad_value); | |
6073 | return FALSE; | |
6074 | } | |
6075 | ||
f6f9408f | 6076 | return TRUE; |
d4845d57 | 6077 | } |
fbca6ad9 | 6078 | #endif /* not sh_elf_merge_private_data */ |
d4845d57 | 6079 | |
3376eaf5 KK |
6080 | /* Override the generic function because we need to store sh_elf_obj_tdata |
6081 | as the specific tdata. We set also the machine architecture from flags | |
6082 | here. */ | |
6083 | ||
b34976b6 | 6084 | static bfd_boolean |
09fd220b | 6085 | sh_elf_object_p (bfd *abfd) |
3376eaf5 | 6086 | { |
8e45593f NC |
6087 | if (! sh_elf_set_mach_from_flags (abfd)) |
6088 | return FALSE; | |
6089 | ||
6090 | return (((elf_elfheader (abfd)->e_flags & EF_SH_FDPIC) != 0) | |
6091 | == fdpic_object_p (abfd)); | |
3376eaf5 KK |
6092 | } |
6093 | ||
37c644f2 AO |
6094 | /* Finish up dynamic symbol handling. We set the contents of various |
6095 | dynamic sections here. */ | |
6096 | ||
b34976b6 | 6097 | static bfd_boolean |
09fd220b KK |
6098 | sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
6099 | struct elf_link_hash_entry *h, | |
6100 | Elf_Internal_Sym *sym) | |
37c644f2 | 6101 | { |
067653c5 | 6102 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 6103 | |
067653c5 | 6104 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
6105 | if (htab == NULL) |
6106 | return FALSE; | |
37c644f2 AO |
6107 | |
6108 | if (h->plt.offset != (bfd_vma) -1) | |
6109 | { | |
6110 | asection *splt; | |
8e45593f NC |
6111 | asection *sgotplt; |
6112 | asection *srelplt; | |
37c644f2 AO |
6113 | |
6114 | bfd_vma plt_index; | |
6115 | bfd_vma got_offset; | |
6116 | Elf_Internal_Rela rel; | |
947216bf | 6117 | bfd_byte *loc; |
8e45593f | 6118 | const struct elf_sh_plt_info *plt_info; |
37c644f2 AO |
6119 | |
6120 | /* This symbol has an entry in the procedure linkage table. Set | |
6121 | it up. */ | |
6122 | ||
6123 | BFD_ASSERT (h->dynindx != -1); | |
6124 | ||
ce558b89 AM |
6125 | splt = htab->root.splt; |
6126 | sgotplt = htab->root.sgotplt; | |
6127 | srelplt = htab->root.srelplt; | |
8e45593f | 6128 | BFD_ASSERT (splt != NULL && sgotplt != NULL && srelplt != NULL); |
37c644f2 AO |
6129 | |
6130 | /* Get the index in the procedure linkage table which | |
6131 | corresponds to this symbol. This is the index of this symbol | |
6132 | in all the symbols for which we are making plt entries. The | |
6133 | first entry in the procedure linkage table is reserved. */ | |
55e6e397 | 6134 | plt_index = get_plt_index (htab->plt_info, h->plt.offset); |
37c644f2 | 6135 | |
8e45593f NC |
6136 | plt_info = htab->plt_info; |
6137 | if (plt_info->short_plt != NULL && plt_index <= MAX_SHORT_PLT) | |
6138 | plt_info = plt_info->short_plt; | |
6139 | ||
37c644f2 | 6140 | /* Get the offset into the .got table of the entry that |
8e45593f NC |
6141 | corresponds to this function. */ |
6142 | if (htab->fdpic_p) | |
6143 | /* The offset must be relative to the GOT symbol, twelve bytes | |
6144 | before the end of .got.plt. Each descriptor is eight | |
6145 | bytes. */ | |
6146 | got_offset = plt_index * 8 + 12 - sgotplt->size; | |
6147 | else | |
6148 | /* Each .got entry is 4 bytes. The first three are | |
6149 | reserved. */ | |
6150 | got_offset = (plt_index + 3) * 4; | |
37c644f2 | 6151 | |
fbca6ad9 | 6152 | #ifdef GOT_BIAS |
0e1862bb | 6153 | if (bfd_link_pic (info)) |
c8614e8e | 6154 | got_offset -= GOT_BIAS; |
fbca6ad9 AO |
6155 | #endif |
6156 | ||
37c644f2 | 6157 | /* Fill in the entry in the procedure linkage table. */ |
55e6e397 | 6158 | memcpy (splt->contents + h->plt.offset, |
8e45593f NC |
6159 | plt_info->symbol_entry, |
6160 | plt_info->symbol_entry_size); | |
55e6e397 | 6161 | |
0e1862bb | 6162 | if (bfd_link_pic (info) || htab->fdpic_p) |
8e45593f NC |
6163 | { |
6164 | if (plt_info->symbol_fields.got20) | |
6165 | { | |
6166 | bfd_reloc_status_type r; | |
6167 | r = install_movi20_field (output_bfd, got_offset, | |
6168 | splt->owner, splt, splt->contents, | |
6169 | h->plt.offset | |
6170 | + plt_info->symbol_fields.got_entry); | |
6171 | BFD_ASSERT (r == bfd_reloc_ok); | |
6172 | } | |
6173 | else | |
6174 | install_plt_field (output_bfd, FALSE, got_offset, | |
6175 | (splt->contents | |
6176 | + h->plt.offset | |
6177 | + plt_info->symbol_fields.got_entry)); | |
6178 | } | |
55e6e397 | 6179 | else |
37c644f2 | 6180 | { |
8e45593f NC |
6181 | BFD_ASSERT (!plt_info->symbol_fields.got20); |
6182 | ||
55e6e397 | 6183 | install_plt_field (output_bfd, FALSE, |
8e45593f NC |
6184 | (sgotplt->output_section->vma |
6185 | + sgotplt->output_offset | |
fbca6ad9 | 6186 | + got_offset), |
55e6e397 RS |
6187 | (splt->contents |
6188 | + h->plt.offset | |
8e45593f | 6189 | + plt_info->symbol_fields.got_entry)); |
55e6e397 | 6190 | if (htab->vxworks_p) |
37c644f2 | 6191 | { |
55e6e397 RS |
6192 | unsigned int reachable_plts, plts_per_4k; |
6193 | int distance; | |
6194 | ||
6195 | /* Divide the PLT into groups. The first group contains | |
6196 | REACHABLE_PLTS entries and the other groups contain | |
6197 | PLTS_PER_4K entries. Entries in the first group can | |
6198 | branch directly to .plt; those in later groups branch | |
6199 | to the last element of the previous group. */ | |
6200 | /* ??? It would be better to create multiple copies of | |
6201 | the common resolver stub. */ | |
6202 | reachable_plts = ((4096 | |
8e45593f NC |
6203 | - plt_info->plt0_entry_size |
6204 | - (plt_info->symbol_fields.plt + 4)) | |
6205 | / plt_info->symbol_entry_size) + 1; | |
6206 | plts_per_4k = (4096 / plt_info->symbol_entry_size); | |
55e6e397 RS |
6207 | if (plt_index < reachable_plts) |
6208 | distance = -(h->plt.offset | |
8e45593f | 6209 | + plt_info->symbol_fields.plt); |
55e6e397 RS |
6210 | else |
6211 | distance = -(((plt_index - reachable_plts) % plts_per_4k + 1) | |
8e45593f | 6212 | * plt_info->symbol_entry_size); |
55e6e397 RS |
6213 | |
6214 | /* Install the 'bra' with this offset. */ | |
6215 | bfd_put_16 (output_bfd, | |
6216 | 0xa000 | (0x0fff & ((distance - 4) / 2)), | |
6217 | (splt->contents | |
6218 | + h->plt.offset | |
8e45593f | 6219 | + plt_info->symbol_fields.plt)); |
37c644f2 | 6220 | } |
55e6e397 RS |
6221 | else |
6222 | install_plt_field (output_bfd, TRUE, | |
6223 | splt->output_section->vma + splt->output_offset, | |
6224 | (splt->contents | |
6225 | + h->plt.offset | |
8e45593f | 6226 | + plt_info->symbol_fields.plt)); |
37c644f2 AO |
6227 | } |
6228 | ||
8e45593f | 6229 | /* Make got_offset relative to the start of .got.plt. */ |
fbca6ad9 | 6230 | #ifdef GOT_BIAS |
0e1862bb | 6231 | if (bfd_link_pic (info)) |
c8614e8e | 6232 | got_offset += GOT_BIAS; |
fbca6ad9 | 6233 | #endif |
8e45593f NC |
6234 | if (htab->fdpic_p) |
6235 | got_offset = plt_index * 8; | |
fbca6ad9 | 6236 | |
8e45593f NC |
6237 | if (plt_info->symbol_fields.reloc_offset != MINUS_ONE) |
6238 | install_plt_field (output_bfd, FALSE, | |
6239 | plt_index * sizeof (Elf32_External_Rela), | |
6240 | (splt->contents | |
6241 | + h->plt.offset | |
6242 | + plt_info->symbol_fields.reloc_offset)); | |
37c644f2 AO |
6243 | |
6244 | /* Fill in the entry in the global offset table. */ | |
6245 | bfd_put_32 (output_bfd, | |
6246 | (splt->output_section->vma | |
6247 | + splt->output_offset | |
6248 | + h->plt.offset | |
8e45593f NC |
6249 | + plt_info->symbol_resolve_offset), |
6250 | sgotplt->contents + got_offset); | |
6251 | if (htab->fdpic_p) | |
6252 | bfd_put_32 (output_bfd, | |
ce558b89 | 6253 | sh_elf_osec_to_segment (output_bfd, splt->output_section), |
8e45593f | 6254 | sgotplt->contents + got_offset + 4); |
37c644f2 AO |
6255 | |
6256 | /* Fill in the entry in the .rela.plt section. */ | |
8e45593f NC |
6257 | rel.r_offset = (sgotplt->output_section->vma |
6258 | + sgotplt->output_offset | |
37c644f2 | 6259 | + got_offset); |
8e45593f NC |
6260 | if (htab->fdpic_p) |
6261 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_FUNCDESC_VALUE); | |
6262 | else | |
6263 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT); | |
37c644f2 | 6264 | rel.r_addend = 0; |
fbca6ad9 AO |
6265 | #ifdef GOT_BIAS |
6266 | rel.r_addend = GOT_BIAS; | |
6267 | #endif | |
8e45593f | 6268 | loc = srelplt->contents + plt_index * sizeof (Elf32_External_Rela); |
947216bf | 6269 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
37c644f2 | 6270 | |
0e1862bb | 6271 | if (htab->vxworks_p && !bfd_link_pic (info)) |
55e6e397 RS |
6272 | { |
6273 | /* Create the .rela.plt.unloaded relocations for this PLT entry. | |
6274 | Begin by pointing LOC to the first such relocation. */ | |
6275 | loc = (htab->srelplt2->contents | |
6276 | + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela)); | |
6277 | ||
6278 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation | |
6279 | for the PLT entry's pointer to the .got.plt entry. */ | |
ce558b89 AM |
6280 | rel.r_offset = (splt->output_section->vma |
6281 | + splt->output_offset | |
55e6e397 | 6282 | + h->plt.offset |
8e45593f | 6283 | + plt_info->symbol_fields.got_entry); |
55e6e397 RS |
6284 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); |
6285 | rel.r_addend = got_offset; | |
6286 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
6287 | loc += sizeof (Elf32_External_Rela); | |
6288 | ||
6289 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for | |
6290 | the .got.plt entry, which initially points to .plt. */ | |
8e45593f NC |
6291 | rel.r_offset = (sgotplt->output_section->vma |
6292 | + sgotplt->output_offset | |
55e6e397 RS |
6293 | + got_offset); |
6294 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32); | |
6295 | rel.r_addend = 0; | |
6296 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6297 | } | |
6298 | ||
f5385ebf | 6299 | if (!h->def_regular) |
37c644f2 AO |
6300 | { |
6301 | /* Mark the symbol as undefined, rather than as defined in | |
6302 | the .plt section. Leave the value alone. */ | |
6303 | sym->st_shndx = SHN_UNDEF; | |
6304 | } | |
6305 | } | |
6306 | ||
3376eaf5 | 6307 | if (h->got.offset != (bfd_vma) -1 |
8e45593f NC |
6308 | && sh_elf_hash_entry (h)->got_type != GOT_TLS_GD |
6309 | && sh_elf_hash_entry (h)->got_type != GOT_TLS_IE | |
6310 | && sh_elf_hash_entry (h)->got_type != GOT_FUNCDESC) | |
37c644f2 AO |
6311 | { |
6312 | asection *sgot; | |
8e45593f | 6313 | asection *srelgot; |
37c644f2 | 6314 | Elf_Internal_Rela rel; |
947216bf | 6315 | bfd_byte *loc; |
37c644f2 AO |
6316 | |
6317 | /* This symbol has an entry in the global offset table. Set it | |
6318 | up. */ | |
6319 | ||
ce558b89 AM |
6320 | sgot = htab->root.sgot; |
6321 | srelgot = htab->root.srelgot; | |
8e45593f | 6322 | BFD_ASSERT (sgot != NULL && srelgot != NULL); |
37c644f2 AO |
6323 | |
6324 | rel.r_offset = (sgot->output_section->vma | |
6325 | + sgot->output_offset | |
dc810e39 | 6326 | + (h->got.offset &~ (bfd_vma) 1)); |
37c644f2 | 6327 | |
067653c5 AM |
6328 | /* If this is a static link, or it is a -Bsymbolic link and the |
6329 | symbol is defined locally or was forced to be local because | |
6330 | of a version file, we just want to emit a RELATIVE reloc. | |
37c644f2 AO |
6331 | The entry in the global offset table will already have been |
6332 | initialized in the relocate_section function. */ | |
0e1862bb | 6333 | if (bfd_link_pic (info) |
3d85aebe | 6334 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
37c644f2 | 6335 | { |
8e45593f NC |
6336 | if (htab->fdpic_p) |
6337 | { | |
6338 | asection *sec = h->root.u.def.section; | |
6339 | int dynindx | |
6340 | = elf_section_data (sec->output_section)->dynindx; | |
6341 | ||
6342 | rel.r_info = ELF32_R_INFO (dynindx, R_SH_DIR32); | |
6343 | rel.r_addend = (h->root.u.def.value | |
6344 | + h->root.u.def.section->output_offset); | |
6345 | } | |
6346 | else | |
6347 | { | |
6348 | rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
6349 | rel.r_addend = (h->root.u.def.value | |
6350 | + h->root.u.def.section->output_section->vma | |
6351 | + h->root.u.def.section->output_offset); | |
6352 | } | |
37c644f2 AO |
6353 | } |
6354 | else | |
6355 | { | |
6356 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
6357 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT); | |
6358 | rel.r_addend = 0; | |
6359 | } | |
6360 | ||
8e45593f NC |
6361 | loc = srelgot->contents; |
6362 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
947216bf | 6363 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
37c644f2 AO |
6364 | } |
6365 | ||
f5385ebf | 6366 | if (h->needs_copy) |
37c644f2 AO |
6367 | { |
6368 | asection *s; | |
6369 | Elf_Internal_Rela rel; | |
947216bf | 6370 | bfd_byte *loc; |
37c644f2 AO |
6371 | |
6372 | /* This symbol needs a copy reloc. Set it up. */ | |
6373 | ||
6374 | BFD_ASSERT (h->dynindx != -1 | |
6375 | && (h->root.type == bfd_link_hash_defined | |
6376 | || h->root.type == bfd_link_hash_defweak)); | |
6377 | ||
3d4d4302 | 6378 | s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss"); |
37c644f2 AO |
6379 | BFD_ASSERT (s != NULL); |
6380 | ||
6381 | rel.r_offset = (h->root.u.def.value | |
6382 | + h->root.u.def.section->output_section->vma | |
6383 | + h->root.u.def.section->output_offset); | |
6384 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY); | |
6385 | rel.r_addend = 0; | |
947216bf AM |
6386 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
6387 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
37c644f2 AO |
6388 | } |
6389 | ||
55e6e397 RS |
6390 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks, |
6391 | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the | |
6392 | ".got" section. */ | |
9637f6ef | 6393 | if (h == htab->root.hdynamic |
55e6e397 | 6394 | || (!htab->vxworks_p && h == htab->root.hgot)) |
37c644f2 AO |
6395 | sym->st_shndx = SHN_ABS; |
6396 | ||
b34976b6 | 6397 | return TRUE; |
37c644f2 AO |
6398 | } |
6399 | ||
6400 | /* Finish up the dynamic sections. */ | |
6401 | ||
b34976b6 | 6402 | static bfd_boolean |
09fd220b | 6403 | sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
37c644f2 | 6404 | { |
067653c5 | 6405 | struct elf_sh_link_hash_table *htab; |
8e45593f | 6406 | asection *sgotplt; |
37c644f2 AO |
6407 | asection *sdyn; |
6408 | ||
067653c5 | 6409 | htab = sh_elf_hash_table (info); |
4dfe6ac6 NC |
6410 | if (htab == NULL) |
6411 | return FALSE; | |
6412 | ||
ce558b89 | 6413 | sgotplt = htab->root.sgotplt; |
3d4d4302 | 6414 | sdyn = bfd_get_linker_section (htab->root.dynobj, ".dynamic"); |
37c644f2 | 6415 | |
067653c5 | 6416 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
6417 | { |
6418 | asection *splt; | |
6419 | Elf32_External_Dyn *dyncon, *dynconend; | |
6420 | ||
8e45593f | 6421 | BFD_ASSERT (sgotplt != NULL && sdyn != NULL); |
37c644f2 AO |
6422 | |
6423 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 6424 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
37c644f2 AO |
6425 | for (; dyncon < dynconend; dyncon++) |
6426 | { | |
6427 | Elf_Internal_Dyn dyn; | |
37c644f2 AO |
6428 | asection *s; |
6429 | ||
2293c499 | 6430 | bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn); |
37c644f2 AO |
6431 | |
6432 | switch (dyn.d_tag) | |
6433 | { | |
6434 | default: | |
7a2b07ff NS |
6435 | if (htab->vxworks_p |
6436 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
6437 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
37c644f2 AO |
6438 | break; |
6439 | ||
6440 | case DT_PLTGOT: | |
8e45593f NC |
6441 | BFD_ASSERT (htab->root.hgot != NULL); |
6442 | s = htab->root.hgot->root.u.def.section; | |
6443 | dyn.d_un.d_ptr = htab->root.hgot->root.u.def.value | |
6444 | + s->output_section->vma + s->output_offset; | |
6445 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6446 | break; | |
37c644f2 AO |
6447 | |
6448 | case DT_JMPREL: | |
ce558b89 | 6449 | s = htab->root.srelplt->output_section; |
37c644f2 AO |
6450 | BFD_ASSERT (s != NULL); |
6451 | dyn.d_un.d_ptr = s->vma; | |
6452 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
6453 | break; | |
6454 | ||
6455 | case DT_PLTRELSZ: | |
ce558b89 | 6456 | s = htab->root.srelplt->output_section; |
37c644f2 | 6457 | BFD_ASSERT (s != NULL); |
eea6121a | 6458 | dyn.d_un.d_val = s->size; |
37c644f2 AO |
6459 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
6460 | break; | |
37c644f2 AO |
6461 | } |
6462 | } | |
6463 | ||
6464 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 6465 | splt = htab->root.splt; |
55e6e397 | 6466 | if (splt && splt->size > 0 && htab->plt_info->plt0_entry) |
37c644f2 | 6467 | { |
55e6e397 RS |
6468 | unsigned int i; |
6469 | ||
6470 | memcpy (splt->contents, | |
6471 | htab->plt_info->plt0_entry, | |
6472 | htab->plt_info->plt0_entry_size); | |
6473 | for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++) | |
6474 | if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE) | |
6475 | install_plt_field (output_bfd, FALSE, | |
8e45593f NC |
6476 | (sgotplt->output_section->vma |
6477 | + sgotplt->output_offset | |
55e6e397 RS |
6478 | + (i * 4)), |
6479 | (splt->contents | |
6480 | + htab->plt_info->plt0_got_fields[i])); | |
6481 | ||
6482 | if (htab->vxworks_p) | |
37c644f2 | 6483 | { |
55e6e397 RS |
6484 | /* Finalize the .rela.plt.unloaded contents. */ |
6485 | Elf_Internal_Rela rel; | |
6486 | bfd_byte *loc; | |
6487 | ||
6488 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the | |
6489 | first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */ | |
6490 | loc = htab->srelplt2->contents; | |
6491 | rel.r_offset = (splt->output_section->vma | |
6492 | + splt->output_offset | |
6493 | + htab->plt_info->plt0_got_fields[2]); | |
6494 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); | |
6495 | rel.r_addend = 8; | |
6496 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
6497 | loc += sizeof (Elf32_External_Rela); | |
6498 | ||
6499 | /* Fix up the remaining .rela.plt.unloaded relocations. | |
6500 | They may have the wrong symbol index for _G_O_T_ or | |
6501 | _P_L_T_ depending on the order in which symbols were | |
6502 | output. */ | |
6503 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
37c644f2 | 6504 | { |
55e6e397 RS |
6505 | /* The PLT entry's pointer to the .got.plt slot. */ |
6506 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
6507 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, | |
6508 | R_SH_DIR32); | |
6509 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6510 | loc += sizeof (Elf32_External_Rela); | |
6511 | ||
6512 | /* The .got.plt slot's pointer to .plt. */ | |
6513 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
6514 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, | |
6515 | R_SH_DIR32); | |
6516 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
6517 | loc += sizeof (Elf32_External_Rela); | |
37c644f2 | 6518 | } |
37c644f2 AO |
6519 | } |
6520 | ||
6521 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
6522 | really seem like the right value. */ | |
6523 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
6524 | } | |
6525 | } | |
6526 | ||
6527 | /* Fill in the first three entries in the global offset table. */ | |
8e45593f | 6528 | if (sgotplt && sgotplt->size > 0 && !htab->fdpic_p) |
37c644f2 AO |
6529 | { |
6530 | if (sdyn == NULL) | |
8e45593f | 6531 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents); |
37c644f2 AO |
6532 | else |
6533 | bfd_put_32 (output_bfd, | |
6534 | sdyn->output_section->vma + sdyn->output_offset, | |
8e45593f NC |
6535 | sgotplt->contents); |
6536 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 4); | |
6537 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgotplt->contents + 8); | |
6538 | } | |
37c644f2 | 6539 | |
8e45593f NC |
6540 | if (sgotplt && sgotplt->size > 0) |
6541 | elf_section_data (sgotplt->output_section)->this_hdr.sh_entsize = 4; | |
68ffbac6 | 6542 | |
8e45593f NC |
6543 | /* At the very end of the .rofixup section is a pointer to the GOT. */ |
6544 | if (htab->fdpic_p && htab->srofixup != NULL) | |
6545 | { | |
6546 | struct elf_link_hash_entry *hgot = htab->root.hgot; | |
6547 | bfd_vma got_value = hgot->root.u.def.value | |
6548 | + hgot->root.u.def.section->output_section->vma | |
6549 | + hgot->root.u.def.section->output_offset; | |
6550 | ||
6551 | sh_elf_add_rofixup (output_bfd, htab->srofixup, got_value); | |
6552 | ||
6553 | /* Make sure we allocated and generated the same number of fixups. */ | |
6554 | BFD_ASSERT (htab->srofixup->reloc_count * 4 == htab->srofixup->size); | |
067653c5 | 6555 | } |
37c644f2 | 6556 | |
8e45593f NC |
6557 | if (htab->srelfuncdesc) |
6558 | BFD_ASSERT (htab->srelfuncdesc->reloc_count * sizeof (Elf32_External_Rela) | |
6559 | == htab->srelfuncdesc->size); | |
6560 | ||
ce558b89 AM |
6561 | if (htab->root.srelgot) |
6562 | BFD_ASSERT (htab->root.srelgot->reloc_count * sizeof (Elf32_External_Rela) | |
6563 | == htab->root.srelgot->size); | |
8e45593f | 6564 | |
b34976b6 | 6565 | return TRUE; |
37c644f2 AO |
6566 | } |
6567 | ||
99e4ae17 | 6568 | static enum elf_reloc_type_class |
7e612e98 AM |
6569 | sh_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
6570 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
6571 | const Elf_Internal_Rela *rela) | |
99e4ae17 | 6572 | { |
f51e552e | 6573 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
6574 | { |
6575 | case R_SH_RELATIVE: | |
6576 | return reloc_class_relative; | |
6577 | case R_SH_JMP_SLOT: | |
6578 | return reloc_class_plt; | |
6579 | case R_SH_COPY: | |
6580 | return reloc_class_copy; | |
6581 | default: | |
6582 | return reloc_class_normal; | |
6583 | } | |
6584 | } | |
6585 | ||
85fbca6a | 6586 | #if !defined SH_TARGET_ALREADY_DEFINED |
571fe01f | 6587 | /* Support for Linux core dump NOTE sections. */ |
85fbca6a | 6588 | |
b34976b6 | 6589 | static bfd_boolean |
09fd220b | 6590 | elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
6591 | { |
6592 | int offset; | |
eea6121a | 6593 | unsigned int size; |
2bc3c89a AM |
6594 | |
6595 | switch (note->descsz) | |
6596 | { | |
6597 | default: | |
b34976b6 | 6598 | return FALSE; |
2bc3c89a AM |
6599 | |
6600 | case 168: /* Linux/SH */ | |
6601 | /* pr_cursig */ | |
228e534f | 6602 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
2bc3c89a AM |
6603 | |
6604 | /* pr_pid */ | |
228e534f | 6605 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
2bc3c89a AM |
6606 | |
6607 | /* pr_reg */ | |
6608 | offset = 72; | |
eea6121a | 6609 | size = 92; |
2bc3c89a AM |
6610 | |
6611 | break; | |
6612 | } | |
6613 | ||
6614 | /* Make a ".reg/999" section. */ | |
6615 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 6616 | size, note->descpos + offset); |
2bc3c89a AM |
6617 | } |
6618 | ||
b34976b6 | 6619 | static bfd_boolean |
09fd220b | 6620 | elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
6621 | { |
6622 | switch (note->descsz) | |
6623 | { | |
6624 | default: | |
b34976b6 | 6625 | return FALSE; |
2bc3c89a AM |
6626 | |
6627 | case 124: /* Linux/SH elf_prpsinfo */ | |
228e534f | 6628 | elf_tdata (abfd)->core->program |
2bc3c89a | 6629 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); |
228e534f | 6630 | elf_tdata (abfd)->core->command |
2bc3c89a AM |
6631 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); |
6632 | } | |
6633 | ||
6634 | /* Note that for some reason, a spurious space is tacked | |
6635 | onto the end of the args in some (at least one anyway) | |
6636 | implementations, so strip it off if it exists. */ | |
6637 | ||
6638 | { | |
228e534f | 6639 | char *command = elf_tdata (abfd)->core->command; |
2bc3c89a AM |
6640 | int n = strlen (command); |
6641 | ||
6642 | if (0 < n && command[n - 1] == ' ') | |
6643 | command[n - 1] = '\0'; | |
6644 | } | |
6645 | ||
b34976b6 | 6646 | return TRUE; |
2bc3c89a | 6647 | } |
85fbca6a | 6648 | #endif /* not SH_TARGET_ALREADY_DEFINED */ |
2bc3c89a | 6649 | |
68ffbac6 | 6650 | |
1f1799d5 KK |
6651 | /* Return address for Ith PLT stub in section PLT, for relocation REL |
6652 | or (bfd_vma) -1 if it should not be included. */ | |
6653 | ||
6654 | static bfd_vma | |
6655 | sh_elf_plt_sym_val (bfd_vma i, const asection *plt, | |
6656 | const arelent *rel ATTRIBUTE_UNUSED) | |
6657 | { | |
55e6e397 RS |
6658 | const struct elf_sh_plt_info *plt_info; |
6659 | ||
6660 | plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0); | |
6661 | return plt->vma + get_plt_offset (plt_info, i); | |
1f1799d5 KK |
6662 | } |
6663 | ||
8e45593f NC |
6664 | /* Decide whether to attempt to turn absptr or lsda encodings in |
6665 | shared libraries into pcrel within the given input section. */ | |
6666 | ||
6667 | static bfd_boolean | |
6668 | sh_elf_use_relative_eh_frame (bfd *input_bfd ATTRIBUTE_UNUSED, | |
6669 | struct bfd_link_info *info, | |
6670 | asection *eh_frame_section ATTRIBUTE_UNUSED) | |
6671 | { | |
6672 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
6673 | ||
6674 | /* We can't use PC-relative encodings in FDPIC binaries, in general. */ | |
6675 | if (htab->fdpic_p) | |
6676 | return FALSE; | |
6677 | ||
6678 | return TRUE; | |
6679 | } | |
6680 | ||
6681 | /* Adjust the contents of an eh_frame_hdr section before they're output. */ | |
6682 | ||
6683 | static bfd_byte | |
6684 | sh_elf_encode_eh_address (bfd *abfd, | |
6685 | struct bfd_link_info *info, | |
6686 | asection *osec, bfd_vma offset, | |
6687 | asection *loc_sec, bfd_vma loc_offset, | |
6688 | bfd_vma *encoded) | |
6689 | { | |
6690 | struct elf_sh_link_hash_table *htab = sh_elf_hash_table (info); | |
6691 | struct elf_link_hash_entry *h; | |
6692 | ||
6693 | if (!htab->fdpic_p) | |
6694 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, loc_sec, | |
6695 | loc_offset, encoded); | |
6696 | ||
6697 | h = htab->root.hgot; | |
6698 | BFD_ASSERT (h && h->root.type == bfd_link_hash_defined); | |
6699 | ||
6700 | if (! h || (sh_elf_osec_to_segment (abfd, osec) | |
6701 | == sh_elf_osec_to_segment (abfd, loc_sec->output_section))) | |
6702 | return _bfd_elf_encode_eh_address (abfd, info, osec, offset, | |
6703 | loc_sec, loc_offset, encoded); | |
6704 | ||
6705 | BFD_ASSERT (sh_elf_osec_to_segment (abfd, osec) | |
6706 | == (sh_elf_osec_to_segment | |
6707 | (abfd, h->root.u.def.section->output_section))); | |
6708 | ||
6709 | *encoded = osec->vma + offset | |
6710 | - (h->root.u.def.value | |
6711 | + h->root.u.def.section->output_section->vma | |
6712 | + h->root.u.def.section->output_offset); | |
6713 | ||
6714 | return DW_EH_PE_datarel | DW_EH_PE_sdata4; | |
6715 | } | |
6716 | ||
85fbca6a | 6717 | #if !defined SH_TARGET_ALREADY_DEFINED |
6d00b590 | 6718 | #define TARGET_BIG_SYM sh_elf32_vec |
252b5132 | 6719 | #define TARGET_BIG_NAME "elf32-sh" |
6d00b590 | 6720 | #define TARGET_LITTLE_SYM sh_elf32_le_vec |
252b5132 | 6721 | #define TARGET_LITTLE_NAME "elf32-shl" |
85fbca6a NC |
6722 | #endif |
6723 | ||
252b5132 | 6724 | #define ELF_ARCH bfd_arch_sh |
ae95ffa6 | 6725 | #define ELF_TARGET_ID SH_ELF_DATA |
252b5132 | 6726 | #define ELF_MACHINE_CODE EM_SH |
d0facd1b NC |
6727 | #ifdef __QNXTARGET__ |
6728 | #define ELF_MAXPAGESIZE 0x1000 | |
6729 | #else | |
6730 | #define ELF_MAXPAGESIZE 0x80 | |
6731 | #endif | |
252b5132 RH |
6732 | |
6733 | #define elf_symbol_leading_char '_' | |
6734 | ||
6735 | #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup | |
157090f7 AM |
6736 | #define bfd_elf32_bfd_reloc_name_lookup \ |
6737 | sh_elf_reloc_name_lookup | |
252b5132 RH |
6738 | #define elf_info_to_howto sh_elf_info_to_howto |
6739 | #define bfd_elf32_bfd_relax_section sh_elf_relax_section | |
6740 | #define elf_backend_relocate_section sh_elf_relocate_section | |
6741 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
6742 | sh_elf_get_relocated_section_contents | |
3376eaf5 KK |
6743 | #define bfd_elf32_mkobject sh_elf_mkobject |
6744 | #define elf_backend_object_p sh_elf_object_p | |
d4845d57 JR |
6745 | #define bfd_elf32_bfd_copy_private_bfd_data \ |
6746 | sh_elf_copy_private_data | |
875f7f69 | 6747 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
d4845d57 | 6748 | sh_elf_merge_private_data |
252b5132 | 6749 | |
067653c5 | 6750 | #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook |
067653c5 AM |
6751 | #define elf_backend_check_relocs sh_elf_check_relocs |
6752 | #define elf_backend_copy_indirect_symbol \ | |
6753 | sh_elf_copy_indirect_symbol | |
37c644f2 AO |
6754 | #define elf_backend_create_dynamic_sections \ |
6755 | sh_elf_create_dynamic_sections | |
6756 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6757 | sh_elf_link_hash_table_create | |
6758 | #define elf_backend_adjust_dynamic_symbol \ | |
6759 | sh_elf_adjust_dynamic_symbol | |
55e6e397 RS |
6760 | #define elf_backend_always_size_sections \ |
6761 | sh_elf_always_size_sections | |
37c644f2 AO |
6762 | #define elf_backend_size_dynamic_sections \ |
6763 | sh_elf_size_dynamic_sections | |
8e45593f | 6764 | #define elf_backend_omit_section_dynsym sh_elf_omit_section_dynsym |
37c644f2 AO |
6765 | #define elf_backend_finish_dynamic_symbol \ |
6766 | sh_elf_finish_dynamic_symbol | |
6767 | #define elf_backend_finish_dynamic_sections \ | |
6768 | sh_elf_finish_dynamic_sections | |
99e4ae17 | 6769 | #define elf_backend_reloc_type_class sh_elf_reloc_type_class |
1f1799d5 | 6770 | #define elf_backend_plt_sym_val sh_elf_plt_sym_val |
8e45593f NC |
6771 | #define elf_backend_can_make_relative_eh_frame \ |
6772 | sh_elf_use_relative_eh_frame | |
6773 | #define elf_backend_can_make_lsda_relative_eh_frame \ | |
6774 | sh_elf_use_relative_eh_frame | |
6775 | #define elf_backend_encode_eh_address \ | |
6776 | sh_elf_encode_eh_address | |
37c644f2 | 6777 | |
04c3a755 | 6778 | #define elf_backend_stack_align 8 |
067653c5 AM |
6779 | #define elf_backend_can_gc_sections 1 |
6780 | #define elf_backend_can_refcount 1 | |
37c644f2 AO |
6781 | #define elf_backend_want_got_plt 1 |
6782 | #define elf_backend_plt_readonly 1 | |
6783 | #define elf_backend_want_plt_sym 0 | |
6784 | #define elf_backend_got_header_size 12 | |
64f52338 | 6785 | #define elf_backend_dtrel_excludes_plt 1 |
ed71e111 | 6786 | |
a2f63b2e MR |
6787 | #define elf_backend_linux_prpsinfo32_ugid16 TRUE |
6788 | ||
211dc24b | 6789 | #if !defined SH_TARGET_ALREADY_DEFINED |
2bc3c89a | 6790 | |
252b5132 | 6791 | #include "elf32-target.h" |
ed71e111 | 6792 | |
2bc3c89a AM |
6793 | /* NetBSD support. */ |
6794 | #undef TARGET_BIG_SYM | |
6d00b590 | 6795 | #define TARGET_BIG_SYM sh_elf32_nbsd_vec |
2bc3c89a AM |
6796 | #undef TARGET_BIG_NAME |
6797 | #define TARGET_BIG_NAME "elf32-sh-nbsd" | |
6798 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6799 | #define TARGET_LITTLE_SYM sh_elf32_nbsd_le_vec |
2bc3c89a AM |
6800 | #undef TARGET_LITTLE_NAME |
6801 | #define TARGET_LITTLE_NAME "elf32-shl-nbsd" | |
6802 | #undef ELF_MAXPAGESIZE | |
6803 | #define ELF_MAXPAGESIZE 0x10000 | |
24718e3b | 6804 | #undef ELF_COMMONPAGESIZE |
2bc3c89a AM |
6805 | #undef elf_symbol_leading_char |
6806 | #define elf_symbol_leading_char 0 | |
571fe01f | 6807 | #undef elf32_bed |
2bc3c89a AM |
6808 | #define elf32_bed elf32_sh_nbsd_bed |
6809 | ||
6810 | #include "elf32-target.h" | |
6811 | ||
2bc3c89a AM |
6812 | |
6813 | /* Linux support. */ | |
6814 | #undef TARGET_BIG_SYM | |
6d00b590 | 6815 | #define TARGET_BIG_SYM sh_elf32_linux_be_vec |
2bc3c89a AM |
6816 | #undef TARGET_BIG_NAME |
6817 | #define TARGET_BIG_NAME "elf32-shbig-linux" | |
6818 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6819 | #define TARGET_LITTLE_SYM sh_elf32_linux_vec |
2bc3c89a AM |
6820 | #undef TARGET_LITTLE_NAME |
6821 | #define TARGET_LITTLE_NAME "elf32-sh-linux" | |
24718e3b L |
6822 | #undef ELF_COMMONPAGESIZE |
6823 | #define ELF_COMMONPAGESIZE 0x1000 | |
2bc3c89a AM |
6824 | |
6825 | #undef elf_backend_grok_prstatus | |
6826 | #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus | |
6827 | #undef elf_backend_grok_psinfo | |
6828 | #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo | |
571fe01f | 6829 | #undef elf32_bed |
2bc3c89a AM |
6830 | #define elf32_bed elf32_sh_lin_bed |
6831 | ||
6832 | #include "elf32-target.h" | |
6833 | ||
8e45593f NC |
6834 | |
6835 | /* FDPIC support. */ | |
6836 | #undef TARGET_BIG_SYM | |
6d00b590 | 6837 | #define TARGET_BIG_SYM sh_elf32_fdpic_be_vec |
8e45593f NC |
6838 | #undef TARGET_BIG_NAME |
6839 | #define TARGET_BIG_NAME "elf32-shbig-fdpic" | |
6840 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6841 | #define TARGET_LITTLE_SYM sh_elf32_fdpic_le_vec |
8e45593f NC |
6842 | #undef TARGET_LITTLE_NAME |
6843 | #define TARGET_LITTLE_NAME "elf32-sh-fdpic" | |
8e45593f NC |
6844 | |
6845 | #undef elf32_bed | |
6846 | #define elf32_bed elf32_sh_fd_bed | |
6847 | ||
6848 | #include "elf32-target.h" | |
6849 | ||
6850 | #undef elf_backend_modify_program_headers | |
6851 | ||
6852 | /* VxWorks support. */ | |
55e6e397 | 6853 | #undef TARGET_BIG_SYM |
6d00b590 | 6854 | #define TARGET_BIG_SYM sh_elf32_vxworks_vec |
55e6e397 RS |
6855 | #undef TARGET_BIG_NAME |
6856 | #define TARGET_BIG_NAME "elf32-sh-vxworks" | |
6857 | #undef TARGET_LITTLE_SYM | |
6d00b590 | 6858 | #define TARGET_LITTLE_SYM sh_elf32_vxworks_le_vec |
55e6e397 RS |
6859 | #undef TARGET_LITTLE_NAME |
6860 | #define TARGET_LITTLE_NAME "elf32-shl-vxworks" | |
6861 | #undef elf32_bed | |
6862 | #define elf32_bed elf32_sh_vxworks_bed | |
6863 | ||
6864 | #undef elf_backend_want_plt_sym | |
6865 | #define elf_backend_want_plt_sym 1 | |
6866 | #undef elf_symbol_leading_char | |
6867 | #define elf_symbol_leading_char '_' | |
6868 | #define elf_backend_want_got_underscore 1 | |
6869 | #undef elf_backend_grok_prstatus | |
6870 | #undef elf_backend_grok_psinfo | |
6871 | #undef elf_backend_add_symbol_hook | |
6872 | #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook | |
6873 | #undef elf_backend_link_output_symbol_hook | |
6874 | #define elf_backend_link_output_symbol_hook \ | |
6875 | elf_vxworks_link_output_symbol_hook | |
6876 | #undef elf_backend_emit_relocs | |
6877 | #define elf_backend_emit_relocs elf_vxworks_emit_relocs | |
6878 | #undef elf_backend_final_write_processing | |
6879 | #define elf_backend_final_write_processing \ | |
6880 | elf_vxworks_final_write_processing | |
6881 | #undef ELF_MAXPAGESIZE | |
6882 | #define ELF_MAXPAGESIZE 0x1000 | |
6883 | #undef ELF_COMMONPAGESIZE | |
6884 | ||
6885 | #include "elf32-target.h" | |
6886 | ||
211dc24b | 6887 | #endif /* not SH_TARGET_ALREADY_DEFINED */ |