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ef230218 | 1 | /* Renesas / SuperH SH specific support for 32-bit ELF |
22d606e9 | 2 | Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, |
0ffa91dd | 3 | 2006, 2007, 2008 Free Software Foundation, Inc. |
252b5132 RH |
4 | Contributed by Ian Lance Taylor, Cygnus Support. |
5 | ||
571fe01f | 6 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 7 | |
571fe01f NC |
8 | This program is free software; you can redistribute it and/or modify |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
571fe01f | 11 | (at your option) any later version. |
252b5132 | 12 | |
571fe01f NC |
13 | This program is distributed in the hope that it will be useful, |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
252b5132 | 17 | |
571fe01f NC |
18 | You should have received a copy of the GNU General Public License |
19 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
252b5132 | 22 | |
252b5132 | 23 | #include "sysdep.h" |
3db64b00 | 24 | #include "bfd.h" |
252b5132 RH |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
55e6e397 | 28 | #include "elf-vxworks.h" |
252b5132 | 29 | #include "elf/sh.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 *); |
85fbca6a | 41 | #ifndef SH64_ELF |
b34976b6 | 42 | static bfd_boolean sh_elf_swap_insns |
09fd220b | 43 | (bfd *, asection *, void *, bfd_byte *, bfd_vma); |
85fbca6a | 44 | #endif |
3376eaf5 | 45 | static int sh_elf_optimized_tls_reloc |
09fd220b | 46 | (struct bfd_link_info *, int, int); |
3376eaf5 | 47 | static bfd_vma dtpoff_base |
09fd220b | 48 | (struct bfd_link_info *); |
267fb3c1 | 49 | static bfd_vma tpoff |
09fd220b | 50 | (struct bfd_link_info *, bfd_vma); |
37c644f2 AO |
51 | |
52 | /* The name of the dynamic interpreter. This is put in the .interp | |
53 | section. */ | |
54 | ||
55 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
252b5132 | 56 | |
55e6e397 RS |
57 | #define MINUS_ONE ((bfd_vma) 0 - 1) |
58 | \f | |
59 | #define SH_PARTIAL32 TRUE | |
60 | #define SH_SRC_MASK32 0xffffffff | |
61 | #define SH_ELF_RELOC sh_elf_reloc | |
38b1a46c NC |
62 | static reloc_howto_type sh_elf_howto_table[] = |
63 | { | |
55e6e397 RS |
64 | #include "elf32-sh-relocs.h" |
65 | }; | |
fbca6ad9 | 66 | |
55e6e397 RS |
67 | #define SH_PARTIAL32 FALSE |
68 | #define SH_SRC_MASK32 0 | |
69 | #define SH_ELF_RELOC bfd_elf_generic_reloc | |
70 | static reloc_howto_type sh_vxworks_howto_table[] = | |
71 | { | |
72 | #include "elf32-sh-relocs.h" | |
73 | }; | |
74 | \f | |
75 | /* Return true if OUTPUT_BFD is a VxWorks object. */ | |
fbca6ad9 | 76 | |
55e6e397 | 77 | static bfd_boolean |
527a23b8 | 78 | vxworks_object_p (bfd *abfd ATTRIBUTE_UNUSED) |
55e6e397 | 79 | { |
527a23b8 | 80 | #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED |
55e6e397 RS |
81 | extern const bfd_target bfd_elf32_shlvxworks_vec; |
82 | extern const bfd_target bfd_elf32_shvxworks_vec; | |
fbca6ad9 | 83 | |
55e6e397 RS |
84 | return (abfd->xvec == &bfd_elf32_shlvxworks_vec |
85 | || abfd->xvec == &bfd_elf32_shvxworks_vec); | |
527a23b8 NC |
86 | #else |
87 | return FALSE; | |
88 | #endif | |
55e6e397 | 89 | } |
fbca6ad9 | 90 | |
55e6e397 | 91 | /* Return the howto table for ABFD. */ |
fbca6ad9 | 92 | |
55e6e397 RS |
93 | static reloc_howto_type * |
94 | get_howto_table (bfd *abfd) | |
95 | { | |
96 | if (vxworks_object_p (abfd)) | |
97 | return sh_vxworks_howto_table; | |
98 | return sh_elf_howto_table; | |
99 | } | |
252b5132 | 100 | |
015551fc | 101 | static bfd_reloc_status_type |
09fd220b KK |
102 | sh_elf_reloc_loop (int r_type ATTRIBUTE_UNUSED, bfd *input_bfd, |
103 | asection *input_section, bfd_byte *contents, | |
104 | bfd_vma addr, asection *symbol_section, | |
105 | bfd_vma start, bfd_vma end) | |
015551fc JR |
106 | { |
107 | static bfd_vma last_addr; | |
00fdaf47 | 108 | static asection *last_symbol_section; |
015551fc JR |
109 | bfd_byte *start_ptr, *ptr, *last_ptr; |
110 | int diff, cum_diff; | |
111 | bfd_signed_vma x; | |
112 | int insn; | |
113 | ||
114 | /* Sanity check the address. */ | |
07515404 | 115 | if (addr > bfd_get_section_limit (input_bfd, input_section)) |
015551fc JR |
116 | return bfd_reloc_outofrange; |
117 | ||
118 | /* We require the start and end relocations to be processed consecutively - | |
119 | although we allow then to be processed forwards or backwards. */ | |
120 | if (! last_addr) | |
121 | { | |
122 | last_addr = addr; | |
123 | last_symbol_section = symbol_section; | |
124 | return bfd_reloc_ok; | |
125 | } | |
126 | if (last_addr != addr) | |
127 | abort (); | |
128 | last_addr = 0; | |
129 | ||
130 | if (! symbol_section || last_symbol_section != symbol_section || end < start) | |
131 | return bfd_reloc_outofrange; | |
132 | ||
133 | /* Get the symbol_section contents. */ | |
134 | if (symbol_section != input_section) | |
135 | { | |
136 | if (elf_section_data (symbol_section)->this_hdr.contents != NULL) | |
137 | contents = elf_section_data (symbol_section)->this_hdr.contents; | |
138 | else | |
139 | { | |
eea6121a AM |
140 | if (!bfd_malloc_and_get_section (input_bfd, symbol_section, |
141 | &contents)) | |
015551fc | 142 | { |
eea6121a AM |
143 | if (contents != NULL) |
144 | free (contents); | |
015551fc JR |
145 | return bfd_reloc_outofrange; |
146 | } | |
147 | } | |
148 | } | |
149 | #define IS_PPI(PTR) ((bfd_get_16 (input_bfd, (PTR)) & 0xfc00) == 0xf800) | |
150 | start_ptr = contents + start; | |
151 | for (cum_diff = -6, ptr = contents + end; cum_diff < 0 && ptr > start_ptr;) | |
152 | { | |
153 | for (last_ptr = ptr, ptr -= 4; ptr >= start_ptr && IS_PPI (ptr);) | |
154 | ptr -= 2; | |
155 | ptr += 2; | |
61ff1804 | 156 | diff = (last_ptr - ptr) >> 1; |
015551fc JR |
157 | cum_diff += diff & 1; |
158 | cum_diff += diff; | |
159 | } | |
160 | /* Calculate the start / end values to load into rs / re minus four - | |
161 | so that will cancel out the four we would otherwise have to add to | |
162 | addr to get the value to subtract in order to get relative addressing. */ | |
163 | if (cum_diff >= 0) | |
164 | { | |
165 | start -= 4; | |
166 | end = (ptr + cum_diff * 2) - contents; | |
167 | } | |
168 | else | |
169 | { | |
170 | bfd_vma start0 = start - 4; | |
171 | ||
a0fc8ba1 | 172 | while (start0 && IS_PPI (contents + start0)) |
015551fc JR |
173 | start0 -= 2; |
174 | start0 = start - 2 - ((start - start0) & 2); | |
175 | start = start0 - cum_diff - 2; | |
176 | end = start0; | |
177 | } | |
178 | ||
6cdc0ccc AM |
179 | if (contents != NULL |
180 | && elf_section_data (symbol_section)->this_hdr.contents != contents) | |
181 | free (contents); | |
015551fc JR |
182 | |
183 | insn = bfd_get_16 (input_bfd, contents + addr); | |
184 | ||
185 | x = (insn & 0x200 ? end : start) - addr; | |
186 | if (input_section != symbol_section) | |
187 | x += ((symbol_section->output_section->vma + symbol_section->output_offset) | |
188 | - (input_section->output_section->vma | |
189 | + input_section->output_offset)); | |
190 | x >>= 1; | |
191 | if (x < -128 || x > 127) | |
192 | return bfd_reloc_overflow; | |
193 | ||
61ff1804 | 194 | x = (insn & ~0xff) | (x & 0xff); |
dc810e39 | 195 | bfd_put_16 (input_bfd, (bfd_vma) x, contents + addr); |
015551fc JR |
196 | |
197 | return bfd_reloc_ok; | |
198 | } | |
199 | ||
200 | /* This function is used for normal relocs. This used to be like the COFF | |
252b5132 RH |
201 | function, and is almost certainly incorrect for other ELF targets. */ |
202 | ||
203 | static bfd_reloc_status_type | |
09fd220b KK |
204 | sh_elf_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol_in, |
205 | void *data, asection *input_section, bfd *output_bfd, | |
206 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
207 | { |
208 | unsigned long insn; | |
209 | bfd_vma sym_value; | |
210 | enum elf_sh_reloc_type r_type; | |
211 | bfd_vma addr = reloc_entry->address; | |
212 | bfd_byte *hit_data = addr + (bfd_byte *) data; | |
213 | ||
214 | r_type = (enum elf_sh_reloc_type) reloc_entry->howto->type; | |
215 | ||
216 | if (output_bfd != NULL) | |
217 | { | |
218 | /* Partial linking--do nothing. */ | |
219 | reloc_entry->address += input_section->output_offset; | |
220 | return bfd_reloc_ok; | |
221 | } | |
222 | ||
223 | /* Almost all relocs have to do with relaxing. If any work must be | |
224 | done for them, it has been done in sh_relax_section. */ | |
015551fc | 225 | if (r_type == R_SH_IND12W && (symbol_in->flags & BSF_LOCAL) != 0) |
252b5132 RH |
226 | return bfd_reloc_ok; |
227 | ||
228 | if (symbol_in != NULL | |
229 | && bfd_is_und_section (symbol_in->section)) | |
230 | return bfd_reloc_undefined; | |
231 | ||
232 | if (bfd_is_com_section (symbol_in->section)) | |
435b1e90 KH |
233 | sym_value = 0; |
234 | else | |
252b5132 RH |
235 | sym_value = (symbol_in->value + |
236 | symbol_in->section->output_section->vma + | |
237 | symbol_in->section->output_offset); | |
238 | ||
239 | switch (r_type) | |
240 | { | |
241 | case R_SH_DIR32: | |
242 | insn = bfd_get_32 (abfd, hit_data); | |
243 | insn += sym_value + reloc_entry->addend; | |
dc810e39 | 244 | bfd_put_32 (abfd, (bfd_vma) insn, hit_data); |
252b5132 RH |
245 | break; |
246 | case R_SH_IND12W: | |
247 | insn = bfd_get_16 (abfd, hit_data); | |
248 | sym_value += reloc_entry->addend; | |
249 | sym_value -= (input_section->output_section->vma | |
250 | + input_section->output_offset | |
251 | + addr | |
252 | + 4); | |
253 | sym_value += (insn & 0xfff) << 1; | |
254 | if (insn & 0x800) | |
255 | sym_value -= 0x1000; | |
256 | insn = (insn & 0xf000) | (sym_value & 0xfff); | |
dc810e39 | 257 | bfd_put_16 (abfd, (bfd_vma) insn, hit_data); |
252b5132 RH |
258 | if (sym_value < (bfd_vma) -0x1000 || sym_value >= 0x1000) |
259 | return bfd_reloc_overflow; | |
260 | break; | |
261 | default: | |
262 | abort (); | |
263 | break; | |
264 | } | |
265 | ||
266 | return bfd_reloc_ok; | |
267 | } | |
268 | ||
269 | /* This function is used for relocs which are only used for relaxing, | |
270 | which the linker should otherwise ignore. */ | |
271 | ||
272 | static bfd_reloc_status_type | |
09fd220b KK |
273 | sh_elf_ignore_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc_entry, |
274 | asymbol *symbol ATTRIBUTE_UNUSED, | |
275 | void *data ATTRIBUTE_UNUSED, asection *input_section, | |
276 | bfd *output_bfd, | |
277 | char **error_message ATTRIBUTE_UNUSED) | |
252b5132 RH |
278 | { |
279 | if (output_bfd != NULL) | |
280 | reloc_entry->address += input_section->output_offset; | |
281 | return bfd_reloc_ok; | |
282 | } | |
283 | ||
284 | /* This structure is used to map BFD reloc codes to SH ELF relocs. */ | |
285 | ||
38b1a46c NC |
286 | struct elf_reloc_map |
287 | { | |
252b5132 RH |
288 | bfd_reloc_code_real_type bfd_reloc_val; |
289 | unsigned char elf_reloc_val; | |
290 | }; | |
291 | ||
292 | /* An array mapping BFD reloc codes to SH ELF relocs. */ | |
293 | ||
38b1a46c NC |
294 | static const struct elf_reloc_map sh_reloc_map[] = |
295 | { | |
252b5132 RH |
296 | { BFD_RELOC_NONE, R_SH_NONE }, |
297 | { BFD_RELOC_32, R_SH_DIR32 }, | |
d38eb334 DD |
298 | { BFD_RELOC_16, R_SH_DIR16 }, |
299 | { BFD_RELOC_8, R_SH_DIR8 }, | |
252b5132 RH |
300 | { BFD_RELOC_CTOR, R_SH_DIR32 }, |
301 | { BFD_RELOC_32_PCREL, R_SH_REL32 }, | |
302 | { BFD_RELOC_SH_PCDISP8BY2, R_SH_DIR8WPN }, | |
303 | { BFD_RELOC_SH_PCDISP12BY2, R_SH_IND12W }, | |
304 | { BFD_RELOC_SH_PCRELIMM8BY2, R_SH_DIR8WPZ }, | |
305 | { BFD_RELOC_SH_PCRELIMM8BY4, R_SH_DIR8WPL }, | |
306 | { BFD_RELOC_8_PCREL, R_SH_SWITCH8 }, | |
307 | { BFD_RELOC_SH_SWITCH16, R_SH_SWITCH16 }, | |
308 | { BFD_RELOC_SH_SWITCH32, R_SH_SWITCH32 }, | |
309 | { BFD_RELOC_SH_USES, R_SH_USES }, | |
310 | { BFD_RELOC_SH_COUNT, R_SH_COUNT }, | |
311 | { BFD_RELOC_SH_ALIGN, R_SH_ALIGN }, | |
312 | { BFD_RELOC_SH_CODE, R_SH_CODE }, | |
313 | { BFD_RELOC_SH_DATA, R_SH_DATA }, | |
314 | { BFD_RELOC_SH_LABEL, R_SH_LABEL }, | |
315 | { BFD_RELOC_VTABLE_INHERIT, R_SH_GNU_VTINHERIT }, | |
316 | { BFD_RELOC_VTABLE_ENTRY, R_SH_GNU_VTENTRY }, | |
015551fc JR |
317 | { BFD_RELOC_SH_LOOP_START, R_SH_LOOP_START }, |
318 | { BFD_RELOC_SH_LOOP_END, R_SH_LOOP_END }, | |
3376eaf5 KK |
319 | { BFD_RELOC_SH_TLS_GD_32, R_SH_TLS_GD_32 }, |
320 | { BFD_RELOC_SH_TLS_LD_32, R_SH_TLS_LD_32 }, | |
321 | { BFD_RELOC_SH_TLS_LDO_32, R_SH_TLS_LDO_32 }, | |
322 | { BFD_RELOC_SH_TLS_IE_32, R_SH_TLS_IE_32 }, | |
323 | { BFD_RELOC_SH_TLS_LE_32, R_SH_TLS_LE_32 }, | |
324 | { BFD_RELOC_SH_TLS_DTPMOD32, R_SH_TLS_DTPMOD32 }, | |
325 | { BFD_RELOC_SH_TLS_DTPOFF32, R_SH_TLS_DTPOFF32 }, | |
326 | { BFD_RELOC_SH_TLS_TPOFF32, R_SH_TLS_TPOFF32 }, | |
37c644f2 AO |
327 | { BFD_RELOC_32_GOT_PCREL, R_SH_GOT32 }, |
328 | { BFD_RELOC_32_PLT_PCREL, R_SH_PLT32 }, | |
329 | { BFD_RELOC_SH_COPY, R_SH_COPY }, | |
330 | { BFD_RELOC_SH_GLOB_DAT, R_SH_GLOB_DAT }, | |
331 | { BFD_RELOC_SH_JMP_SLOT, R_SH_JMP_SLOT }, | |
332 | { BFD_RELOC_SH_RELATIVE, R_SH_RELATIVE }, | |
333 | { BFD_RELOC_32_GOTOFF, R_SH_GOTOFF }, | |
334 | { BFD_RELOC_SH_GOTPC, R_SH_GOTPC }, | |
fbca6ad9 AO |
335 | { BFD_RELOC_SH_GOTPLT32, R_SH_GOTPLT32 }, |
336 | #ifdef INCLUDE_SHMEDIA | |
337 | { BFD_RELOC_SH_GOT_LOW16, R_SH_GOT_LOW16 }, | |
338 | { BFD_RELOC_SH_GOT_MEDLOW16, R_SH_GOT_MEDLOW16 }, | |
339 | { BFD_RELOC_SH_GOT_MEDHI16, R_SH_GOT_MEDHI16 }, | |
340 | { BFD_RELOC_SH_GOT_HI16, R_SH_GOT_HI16 }, | |
341 | { BFD_RELOC_SH_GOTPLT_LOW16, R_SH_GOTPLT_LOW16 }, | |
342 | { BFD_RELOC_SH_GOTPLT_MEDLOW16, R_SH_GOTPLT_MEDLOW16 }, | |
343 | { BFD_RELOC_SH_GOTPLT_MEDHI16, R_SH_GOTPLT_MEDHI16 }, | |
344 | { BFD_RELOC_SH_GOTPLT_HI16, R_SH_GOTPLT_HI16 }, | |
345 | { BFD_RELOC_SH_PLT_LOW16, R_SH_PLT_LOW16 }, | |
346 | { BFD_RELOC_SH_PLT_MEDLOW16, R_SH_PLT_MEDLOW16 }, | |
347 | { BFD_RELOC_SH_PLT_MEDHI16, R_SH_PLT_MEDHI16 }, | |
348 | { BFD_RELOC_SH_PLT_HI16, R_SH_PLT_HI16 }, | |
349 | { BFD_RELOC_SH_GOTOFF_LOW16, R_SH_GOTOFF_LOW16 }, | |
350 | { BFD_RELOC_SH_GOTOFF_MEDLOW16, R_SH_GOTOFF_MEDLOW16 }, | |
351 | { BFD_RELOC_SH_GOTOFF_MEDHI16, R_SH_GOTOFF_MEDHI16 }, | |
352 | { BFD_RELOC_SH_GOTOFF_HI16, R_SH_GOTOFF_HI16 }, | |
353 | { BFD_RELOC_SH_GOTPC_LOW16, R_SH_GOTPC_LOW16 }, | |
354 | { BFD_RELOC_SH_GOTPC_MEDLOW16, R_SH_GOTPC_MEDLOW16 }, | |
355 | { BFD_RELOC_SH_GOTPC_MEDHI16, R_SH_GOTPC_MEDHI16 }, | |
356 | { BFD_RELOC_SH_GOTPC_HI16, R_SH_GOTPC_HI16 }, | |
357 | { BFD_RELOC_SH_COPY64, R_SH_COPY64 }, | |
358 | { BFD_RELOC_SH_GLOB_DAT64, R_SH_GLOB_DAT64 }, | |
359 | { BFD_RELOC_SH_JMP_SLOT64, R_SH_JMP_SLOT64 }, | |
360 | { BFD_RELOC_SH_RELATIVE64, R_SH_RELATIVE64 }, | |
361 | { BFD_RELOC_SH_GOT10BY4, R_SH_GOT10BY4 }, | |
362 | { BFD_RELOC_SH_GOT10BY8, R_SH_GOT10BY8 }, | |
363 | { BFD_RELOC_SH_GOTPLT10BY4, R_SH_GOTPLT10BY4 }, | |
364 | { BFD_RELOC_SH_GOTPLT10BY8, R_SH_GOTPLT10BY8 }, | |
365 | { BFD_RELOC_SH_PT_16, R_SH_PT_16 }, | |
366 | { BFD_RELOC_SH_SHMEDIA_CODE, R_SH_SHMEDIA_CODE }, | |
367 | { BFD_RELOC_SH_IMMU5, R_SH_DIR5U }, | |
368 | { BFD_RELOC_SH_IMMS6, R_SH_DIR6S }, | |
369 | { BFD_RELOC_SH_IMMU6, R_SH_DIR6U }, | |
370 | { BFD_RELOC_SH_IMMS10, R_SH_DIR10S }, | |
371 | { BFD_RELOC_SH_IMMS10BY2, R_SH_DIR10SW }, | |
372 | { BFD_RELOC_SH_IMMS10BY4, R_SH_DIR10SL }, | |
373 | { BFD_RELOC_SH_IMMS10BY8, R_SH_DIR10SQ }, | |
374 | { BFD_RELOC_SH_IMMS16, R_SH_IMMS16 }, | |
375 | { BFD_RELOC_SH_IMMU16, R_SH_IMMU16 }, | |
376 | { BFD_RELOC_SH_IMM_LOW16, R_SH_IMM_LOW16 }, | |
377 | { BFD_RELOC_SH_IMM_LOW16_PCREL, R_SH_IMM_LOW16_PCREL }, | |
378 | { BFD_RELOC_SH_IMM_MEDLOW16, R_SH_IMM_MEDLOW16 }, | |
379 | { BFD_RELOC_SH_IMM_MEDLOW16_PCREL, R_SH_IMM_MEDLOW16_PCREL }, | |
380 | { BFD_RELOC_SH_IMM_MEDHI16, R_SH_IMM_MEDHI16 }, | |
381 | { BFD_RELOC_SH_IMM_MEDHI16_PCREL, R_SH_IMM_MEDHI16_PCREL }, | |
382 | { BFD_RELOC_SH_IMM_HI16, R_SH_IMM_HI16 }, | |
383 | { BFD_RELOC_SH_IMM_HI16_PCREL, R_SH_IMM_HI16_PCREL }, | |
384 | { BFD_RELOC_64, R_SH_64 }, | |
385 | { BFD_RELOC_64_PCREL, R_SH_64_PCREL }, | |
386 | #endif /* not INCLUDE_SHMEDIA */ | |
252b5132 RH |
387 | }; |
388 | ||
389 | /* Given a BFD reloc code, return the howto structure for the | |
55e6e397 | 390 | corresponding SH ELF reloc. */ |
252b5132 RH |
391 | |
392 | static reloc_howto_type * | |
55e6e397 | 393 | sh_elf_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code) |
252b5132 RH |
394 | { |
395 | unsigned int i; | |
396 | ||
397 | for (i = 0; i < sizeof (sh_reloc_map) / sizeof (struct elf_reloc_map); i++) | |
398 | { | |
399 | if (sh_reloc_map[i].bfd_reloc_val == code) | |
55e6e397 | 400 | return get_howto_table (abfd) + (int) sh_reloc_map[i].elf_reloc_val; |
252b5132 RH |
401 | } |
402 | ||
403 | return NULL; | |
404 | } | |
405 | ||
157090f7 AM |
406 | static reloc_howto_type * |
407 | sh_elf_reloc_name_lookup (bfd *abfd, const char *r_name) | |
408 | { | |
409 | unsigned int i; | |
410 | ||
411 | if (vxworks_object_p (abfd)) | |
412 | { | |
413 | for (i = 0; | |
414 | i < (sizeof (sh_vxworks_howto_table) | |
415 | / sizeof (sh_vxworks_howto_table[0])); | |
416 | i++) | |
417 | if (sh_vxworks_howto_table[i].name != NULL | |
418 | && strcasecmp (sh_vxworks_howto_table[i].name, r_name) == 0) | |
419 | return &sh_vxworks_howto_table[i]; | |
420 | } | |
421 | else | |
422 | { | |
423 | for (i = 0; | |
424 | i < (sizeof (sh_elf_howto_table) | |
425 | / sizeof (sh_elf_howto_table[0])); | |
426 | i++) | |
427 | if (sh_elf_howto_table[i].name != NULL | |
428 | && strcasecmp (sh_elf_howto_table[i].name, r_name) == 0) | |
429 | return &sh_elf_howto_table[i]; | |
430 | } | |
431 | ||
432 | return NULL; | |
433 | } | |
434 | ||
252b5132 RH |
435 | /* Given an ELF reloc, fill in the howto field of a relent. */ |
436 | ||
437 | static void | |
55e6e397 | 438 | sh_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, Elf_Internal_Rela *dst) |
252b5132 RH |
439 | { |
440 | unsigned int r; | |
441 | ||
442 | r = ELF32_R_TYPE (dst->r_info); | |
443 | ||
444 | BFD_ASSERT (r < (unsigned int) R_SH_max); | |
445 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC || r > R_SH_LAST_INVALID_RELOC); | |
06bb75c1 | 446 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_2 || r > R_SH_LAST_INVALID_RELOC_2); |
fbca6ad9 AO |
447 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_3 || r > R_SH_LAST_INVALID_RELOC_3); |
448 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_4 || r > R_SH_LAST_INVALID_RELOC_4); | |
3376eaf5 | 449 | BFD_ASSERT (r < R_SH_FIRST_INVALID_RELOC_5 || r > R_SH_LAST_INVALID_RELOC_5); |
252b5132 | 450 | |
55e6e397 | 451 | cache_ptr->howto = get_howto_table (abfd) + r; |
252b5132 RH |
452 | } |
453 | \f | |
454 | /* This function handles relaxing for SH ELF. See the corresponding | |
455 | function in coff-sh.c for a description of what this does. FIXME: | |
456 | There is a lot of duplication here between this code and the COFF | |
457 | specific code. The format of relocs and symbols is wound deeply | |
458 | into this code, but it would still be better if the duplication | |
459 | could be eliminated somehow. Note in particular that although both | |
460 | functions use symbols like R_SH_CODE, those symbols have different | |
461 | values; in coff-sh.c they come from include/coff/sh.h, whereas here | |
462 | they come from enum elf_sh_reloc_type in include/elf/sh.h. */ | |
463 | ||
b34976b6 | 464 | static bfd_boolean |
09fd220b KK |
465 | sh_elf_relax_section (bfd *abfd, asection *sec, |
466 | struct bfd_link_info *link_info, bfd_boolean *again) | |
252b5132 RH |
467 | { |
468 | Elf_Internal_Shdr *symtab_hdr; | |
469 | Elf_Internal_Rela *internal_relocs; | |
b34976b6 | 470 | bfd_boolean have_code; |
252b5132 RH |
471 | Elf_Internal_Rela *irel, *irelend; |
472 | bfd_byte *contents = NULL; | |
6cdc0ccc | 473 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 | 474 | |
b34976b6 | 475 | *again = FALSE; |
252b5132 | 476 | |
1049f94e | 477 | if (link_info->relocatable |
252b5132 RH |
478 | || (sec->flags & SEC_RELOC) == 0 |
479 | || sec->reloc_count == 0) | |
b34976b6 | 480 | return TRUE; |
252b5132 | 481 | |
fbca6ad9 AO |
482 | #ifdef INCLUDE_SHMEDIA |
483 | if (elf_section_data (sec)->this_hdr.sh_flags | |
484 | & (SHF_SH5_ISA32 | SHF_SH5_ISA32_MIXED)) | |
485 | { | |
b34976b6 | 486 | return TRUE; |
fbca6ad9 AO |
487 | } |
488 | #endif | |
489 | ||
0ffa91dd | 490 | symtab_hdr = &elf_symtab_hdr (abfd); |
252b5132 | 491 | |
45d6a902 | 492 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 493 | (abfd, sec, NULL, (Elf_Internal_Rela *) NULL, |
252b5132 RH |
494 | link_info->keep_memory)); |
495 | if (internal_relocs == NULL) | |
496 | goto error_return; | |
252b5132 | 497 | |
b34976b6 | 498 | have_code = FALSE; |
252b5132 RH |
499 | |
500 | irelend = internal_relocs + sec->reloc_count; | |
501 | for (irel = internal_relocs; irel < irelend; irel++) | |
502 | { | |
503 | bfd_vma laddr, paddr, symval; | |
504 | unsigned short insn; | |
505 | Elf_Internal_Rela *irelfn, *irelscan, *irelcount; | |
506 | bfd_signed_vma foff; | |
507 | ||
508 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_CODE) | |
b34976b6 | 509 | have_code = TRUE; |
252b5132 RH |
510 | |
511 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_USES) | |
512 | continue; | |
513 | ||
514 | /* Get the section contents. */ | |
515 | if (contents == NULL) | |
516 | { | |
517 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
518 | contents = elf_section_data (sec)->this_hdr.contents; | |
519 | else | |
520 | { | |
eea6121a | 521 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
522 | goto error_return; |
523 | } | |
524 | } | |
525 | ||
526 | /* The r_addend field of the R_SH_USES reloc will point us to | |
067653c5 AM |
527 | the register load. The 4 is because the r_addend field is |
528 | computed as though it were a jump offset, which are based | |
529 | from 4 bytes after the jump instruction. */ | |
252b5132 | 530 | laddr = irel->r_offset + 4 + irel->r_addend; |
eea6121a | 531 | if (laddr >= sec->size) |
252b5132 | 532 | { |
d003868e AM |
533 | (*_bfd_error_handler) (_("%B: 0x%lx: warning: bad R_SH_USES offset"), |
534 | abfd, | |
252b5132 RH |
535 | (unsigned long) irel->r_offset); |
536 | continue; | |
537 | } | |
538 | insn = bfd_get_16 (abfd, contents + laddr); | |
539 | ||
540 | /* If the instruction is not mov.l NN,rN, we don't know what to | |
067653c5 | 541 | do. */ |
252b5132 RH |
542 | if ((insn & 0xf000) != 0xd000) |
543 | { | |
544 | ((*_bfd_error_handler) | |
d003868e AM |
545 | (_("%B: 0x%lx: warning: R_SH_USES points to unrecognized insn 0x%x"), |
546 | abfd, (unsigned long) irel->r_offset, insn)); | |
252b5132 RH |
547 | continue; |
548 | } | |
549 | ||
550 | /* Get the address from which the register is being loaded. The | |
99e4ae17 AJ |
551 | displacement in the mov.l instruction is quadrupled. It is a |
552 | displacement from four bytes after the movl instruction, but, | |
553 | before adding in the PC address, two least significant bits | |
554 | of the PC are cleared. We assume that the section is aligned | |
555 | on a four byte boundary. */ | |
252b5132 RH |
556 | paddr = insn & 0xff; |
557 | paddr *= 4; | |
dc810e39 | 558 | paddr += (laddr + 4) &~ (bfd_vma) 3; |
eea6121a | 559 | if (paddr >= sec->size) |
252b5132 RH |
560 | { |
561 | ((*_bfd_error_handler) | |
d003868e AM |
562 | (_("%B: 0x%lx: warning: bad R_SH_USES load offset"), |
563 | abfd, (unsigned long) irel->r_offset)); | |
252b5132 RH |
564 | continue; |
565 | } | |
566 | ||
567 | /* Get the reloc for the address from which the register is | |
067653c5 AM |
568 | being loaded. This reloc will tell us which function is |
569 | actually being called. */ | |
252b5132 RH |
570 | for (irelfn = internal_relocs; irelfn < irelend; irelfn++) |
571 | if (irelfn->r_offset == paddr | |
572 | && ELF32_R_TYPE (irelfn->r_info) == (int) R_SH_DIR32) | |
573 | break; | |
574 | if (irelfn >= irelend) | |
575 | { | |
576 | ((*_bfd_error_handler) | |
d003868e AM |
577 | (_("%B: 0x%lx: warning: could not find expected reloc"), |
578 | abfd, (unsigned long) paddr)); | |
252b5132 RH |
579 | continue; |
580 | } | |
581 | ||
582 | /* Read this BFD's symbols if we haven't done so already. */ | |
6cdc0ccc | 583 | if (isymbuf == NULL && symtab_hdr->sh_info != 0) |
252b5132 | 584 | { |
6cdc0ccc AM |
585 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
586 | if (isymbuf == NULL) | |
587 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, | |
588 | symtab_hdr->sh_info, 0, | |
589 | NULL, NULL, NULL); | |
590 | if (isymbuf == NULL) | |
591 | goto error_return; | |
252b5132 RH |
592 | } |
593 | ||
594 | /* Get the value of the symbol referred to by the reloc. */ | |
595 | if (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) | |
596 | { | |
9ad5cbcf | 597 | /* A local symbol. */ |
6cdc0ccc | 598 | Elf_Internal_Sym *isym; |
252b5132 | 599 | |
6cdc0ccc AM |
600 | isym = isymbuf + ELF32_R_SYM (irelfn->r_info); |
601 | if (isym->st_shndx | |
d426c6b0 | 602 | != (unsigned int) _bfd_elf_section_from_bfd_section (abfd, sec)) |
252b5132 RH |
603 | { |
604 | ((*_bfd_error_handler) | |
d003868e AM |
605 | (_("%B: 0x%lx: warning: symbol in unexpected section"), |
606 | abfd, (unsigned long) paddr)); | |
252b5132 RH |
607 | continue; |
608 | } | |
609 | ||
6cdc0ccc | 610 | symval = (isym->st_value |
252b5132 RH |
611 | + sec->output_section->vma |
612 | + sec->output_offset); | |
613 | } | |
614 | else | |
615 | { | |
616 | unsigned long indx; | |
617 | struct elf_link_hash_entry *h; | |
618 | ||
619 | indx = ELF32_R_SYM (irelfn->r_info) - symtab_hdr->sh_info; | |
620 | h = elf_sym_hashes (abfd)[indx]; | |
621 | BFD_ASSERT (h != NULL); | |
622 | if (h->root.type != bfd_link_hash_defined | |
623 | && h->root.type != bfd_link_hash_defweak) | |
624 | { | |
625 | /* This appears to be a reference to an undefined | |
067653c5 AM |
626 | symbol. Just ignore it--it will be caught by the |
627 | regular reloc processing. */ | |
252b5132 RH |
628 | continue; |
629 | } | |
630 | ||
631 | symval = (h->root.u.def.value | |
632 | + h->root.u.def.section->output_section->vma | |
633 | + h->root.u.def.section->output_offset); | |
634 | } | |
635 | ||
55e6e397 RS |
636 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
637 | symval += bfd_get_32 (abfd, contents + paddr); | |
638 | else | |
639 | symval += irelfn->r_addend; | |
252b5132 RH |
640 | |
641 | /* See if this function call can be shortened. */ | |
642 | foff = (symval | |
643 | - (irel->r_offset | |
644 | + sec->output_section->vma | |
645 | + sec->output_offset | |
646 | + 4)); | |
f725025b DD |
647 | /* A branch to an address beyond ours might be increased by an |
648 | .align that doesn't move when bytes behind us are deleted. | |
649 | So, we add some slop in this calculation to allow for | |
650 | that. */ | |
651 | if (foff < -0x1000 || foff >= 0x1000 - 8) | |
252b5132 RH |
652 | { |
653 | /* After all that work, we can't shorten this function call. */ | |
654 | continue; | |
655 | } | |
656 | ||
657 | /* Shorten the function call. */ | |
658 | ||
659 | /* For simplicity of coding, we are going to modify the section | |
660 | contents, the section relocs, and the BFD symbol table. We | |
661 | must tell the rest of the code not to free up this | |
662 | information. It would be possible to instead create a table | |
663 | of changes which have to be made, as is done in coff-mips.c; | |
664 | that would be more work, but would require less memory when | |
665 | the linker is run. */ | |
666 | ||
667 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 668 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 669 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
670 | |
671 | /* Replace the jsr with a bsr. */ | |
672 | ||
673 | /* Change the R_SH_USES reloc into an R_SH_IND12W reloc, and | |
067653c5 | 674 | replace the jsr with a bsr. */ |
252b5132 | 675 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irelfn->r_info), R_SH_IND12W); |
bdfaef52 JR |
676 | /* We used to test (ELF32_R_SYM (irelfn->r_info) < symtab_hdr->sh_info) |
677 | here, but that only checks if the symbol is an external symbol, | |
678 | not if the symbol is in a different section. Besides, we need | |
679 | a consistent meaning for the relocation, so we just assume here that | |
680 | the value of the symbol is not available. */ | |
0e71e495 BE |
681 | |
682 | /* We can't fully resolve this yet, because the external | |
683 | symbol value may be changed by future relaxing. We let | |
684 | the final link phase handle it. */ | |
685 | bfd_put_16 (abfd, (bfd_vma) 0xb000, contents + irel->r_offset); | |
686 | ||
bdfaef52 | 687 | irel->r_addend = -4; |
252b5132 | 688 | |
f725025b DD |
689 | /* When we calculated the symbol "value" we had an offset in the |
690 | DIR32's word in memory (we read and add it above). However, | |
691 | the jsr we create does NOT have this offset encoded, so we | |
692 | have to add it to the addend to preserve it. */ | |
693 | irel->r_addend += bfd_get_32 (abfd, contents + paddr); | |
694 | ||
252b5132 | 695 | /* See if there is another R_SH_USES reloc referring to the same |
067653c5 | 696 | register load. */ |
252b5132 RH |
697 | for (irelscan = internal_relocs; irelscan < irelend; irelscan++) |
698 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_USES | |
699 | && laddr == irelscan->r_offset + 4 + irelscan->r_addend) | |
700 | break; | |
701 | if (irelscan < irelend) | |
702 | { | |
703 | /* Some other function call depends upon this register load, | |
704 | and we have not yet converted that function call. | |
705 | Indeed, we may never be able to convert it. There is | |
706 | nothing else we can do at this point. */ | |
707 | continue; | |
708 | } | |
709 | ||
710 | /* Look for a R_SH_COUNT reloc on the location where the | |
067653c5 AM |
711 | function address is stored. Do this before deleting any |
712 | bytes, to avoid confusion about the address. */ | |
252b5132 RH |
713 | for (irelcount = internal_relocs; irelcount < irelend; irelcount++) |
714 | if (irelcount->r_offset == paddr | |
715 | && ELF32_R_TYPE (irelcount->r_info) == (int) R_SH_COUNT) | |
716 | break; | |
717 | ||
718 | /* Delete the register load. */ | |
719 | if (! sh_elf_relax_delete_bytes (abfd, sec, laddr, 2)) | |
720 | goto error_return; | |
721 | ||
722 | /* That will change things, so, just in case it permits some | |
067653c5 AM |
723 | other function call to come within range, we should relax |
724 | again. Note that this is not required, and it may be slow. */ | |
b34976b6 | 725 | *again = TRUE; |
252b5132 RH |
726 | |
727 | /* Now check whether we got a COUNT reloc. */ | |
728 | if (irelcount >= irelend) | |
729 | { | |
730 | ((*_bfd_error_handler) | |
d003868e AM |
731 | (_("%B: 0x%lx: warning: could not find expected COUNT reloc"), |
732 | abfd, (unsigned long) paddr)); | |
252b5132 RH |
733 | continue; |
734 | } | |
735 | ||
736 | /* The number of uses is stored in the r_addend field. We've | |
067653c5 | 737 | just deleted one. */ |
252b5132 RH |
738 | if (irelcount->r_addend == 0) |
739 | { | |
d003868e AM |
740 | ((*_bfd_error_handler) (_("%B: 0x%lx: warning: bad count"), |
741 | abfd, | |
252b5132 RH |
742 | (unsigned long) paddr)); |
743 | continue; | |
744 | } | |
745 | ||
746 | --irelcount->r_addend; | |
747 | ||
748 | /* If there are no more uses, we can delete the address. Reload | |
067653c5 AM |
749 | the address from irelfn, in case it was changed by the |
750 | previous call to sh_elf_relax_delete_bytes. */ | |
252b5132 RH |
751 | if (irelcount->r_addend == 0) |
752 | { | |
753 | if (! sh_elf_relax_delete_bytes (abfd, sec, irelfn->r_offset, 4)) | |
754 | goto error_return; | |
755 | } | |
756 | ||
757 | /* We've done all we can with that function call. */ | |
758 | } | |
759 | ||
760 | /* Look for load and store instructions that we can align on four | |
761 | byte boundaries. */ | |
bdfaef52 JR |
762 | if ((elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK) != EF_SH4 |
763 | && have_code) | |
252b5132 | 764 | { |
b34976b6 | 765 | bfd_boolean swapped; |
252b5132 RH |
766 | |
767 | /* Get the section contents. */ | |
768 | if (contents == NULL) | |
769 | { | |
770 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
771 | contents = elf_section_data (sec)->this_hdr.contents; | |
772 | else | |
773 | { | |
eea6121a | 774 | if (!bfd_malloc_and_get_section (abfd, sec, &contents)) |
252b5132 RH |
775 | goto error_return; |
776 | } | |
777 | } | |
778 | ||
779 | if (! sh_elf_align_loads (abfd, sec, internal_relocs, contents, | |
780 | &swapped)) | |
781 | goto error_return; | |
782 | ||
783 | if (swapped) | |
784 | { | |
785 | elf_section_data (sec)->relocs = internal_relocs; | |
252b5132 | 786 | elf_section_data (sec)->this_hdr.contents = contents; |
6cdc0ccc | 787 | symtab_hdr->contents = (unsigned char *) isymbuf; |
252b5132 RH |
788 | } |
789 | } | |
790 | ||
6cdc0ccc AM |
791 | if (isymbuf != NULL |
792 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
252b5132 RH |
793 | { |
794 | if (! link_info->keep_memory) | |
6cdc0ccc | 795 | free (isymbuf); |
252b5132 RH |
796 | else |
797 | { | |
6cdc0ccc AM |
798 | /* Cache the symbols for elf_link_input_bfd. */ |
799 | symtab_hdr->contents = (unsigned char *) isymbuf; | |
252b5132 | 800 | } |
9ad5cbcf AM |
801 | } |
802 | ||
6cdc0ccc AM |
803 | if (contents != NULL |
804 | && elf_section_data (sec)->this_hdr.contents != contents) | |
252b5132 RH |
805 | { |
806 | if (! link_info->keep_memory) | |
6cdc0ccc AM |
807 | free (contents); |
808 | else | |
252b5132 | 809 | { |
6cdc0ccc AM |
810 | /* Cache the section contents for elf_link_input_bfd. */ |
811 | elf_section_data (sec)->this_hdr.contents = contents; | |
252b5132 | 812 | } |
252b5132 RH |
813 | } |
814 | ||
6cdc0ccc AM |
815 | if (internal_relocs != NULL |
816 | && elf_section_data (sec)->relocs != internal_relocs) | |
817 | free (internal_relocs); | |
818 | ||
b34976b6 | 819 | return TRUE; |
252b5132 RH |
820 | |
821 | error_return: | |
6cdc0ccc AM |
822 | if (isymbuf != NULL |
823 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
824 | free (isymbuf); | |
825 | if (contents != NULL | |
826 | && elf_section_data (sec)->this_hdr.contents != contents) | |
827 | free (contents); | |
828 | if (internal_relocs != NULL | |
829 | && elf_section_data (sec)->relocs != internal_relocs) | |
830 | free (internal_relocs); | |
9ad5cbcf | 831 | |
b34976b6 | 832 | return FALSE; |
252b5132 RH |
833 | } |
834 | ||
835 | /* Delete some bytes from a section while relaxing. FIXME: There is a | |
836 | lot of duplication between this function and sh_relax_delete_bytes | |
837 | in coff-sh.c. */ | |
838 | ||
b34976b6 | 839 | static bfd_boolean |
09fd220b KK |
840 | sh_elf_relax_delete_bytes (bfd *abfd, asection *sec, bfd_vma addr, |
841 | int count) | |
252b5132 RH |
842 | { |
843 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 844 | unsigned int sec_shndx; |
252b5132 RH |
845 | bfd_byte *contents; |
846 | Elf_Internal_Rela *irel, *irelend; | |
847 | Elf_Internal_Rela *irelalign; | |
848 | bfd_vma toaddr; | |
6cdc0ccc | 849 | Elf_Internal_Sym *isymbuf, *isym, *isymend; |
9ad5cbcf AM |
850 | struct elf_link_hash_entry **sym_hashes; |
851 | struct elf_link_hash_entry **end_hashes; | |
852 | unsigned int symcount; | |
252b5132 RH |
853 | asection *o; |
854 | ||
0ffa91dd | 855 | symtab_hdr = &elf_symtab_hdr (abfd); |
6cdc0ccc | 856 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; |
9ad5cbcf AM |
857 | |
858 | sec_shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
252b5132 RH |
859 | |
860 | contents = elf_section_data (sec)->this_hdr.contents; | |
861 | ||
862 | /* The deletion must stop at the next ALIGN reloc for an aligment | |
863 | power larger than the number of bytes we are deleting. */ | |
864 | ||
865 | irelalign = NULL; | |
eea6121a | 866 | toaddr = sec->size; |
252b5132 RH |
867 | |
868 | irel = elf_section_data (sec)->relocs; | |
869 | irelend = irel + sec->reloc_count; | |
870 | for (; irel < irelend; irel++) | |
871 | { | |
872 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
873 | && irel->r_offset > addr | |
874 | && count < (1 << irel->r_addend)) | |
875 | { | |
876 | irelalign = irel; | |
877 | toaddr = irel->r_offset; | |
878 | break; | |
879 | } | |
880 | } | |
881 | ||
882 | /* Actually delete the bytes. */ | |
dc810e39 AM |
883 | memmove (contents + addr, contents + addr + count, |
884 | (size_t) (toaddr - addr - count)); | |
252b5132 | 885 | if (irelalign == NULL) |
eea6121a | 886 | sec->size -= count; |
252b5132 RH |
887 | else |
888 | { | |
889 | int i; | |
890 | ||
891 | #define NOP_OPCODE (0x0009) | |
892 | ||
893 | BFD_ASSERT ((count & 1) == 0); | |
894 | for (i = 0; i < count; i += 2) | |
dc810e39 | 895 | bfd_put_16 (abfd, (bfd_vma) NOP_OPCODE, contents + toaddr - count + i); |
252b5132 RH |
896 | } |
897 | ||
898 | /* Adjust all the relocs. */ | |
899 | for (irel = elf_section_data (sec)->relocs; irel < irelend; irel++) | |
900 | { | |
901 | bfd_vma nraddr, stop; | |
902 | bfd_vma start = 0; | |
903 | int insn = 0; | |
252b5132 RH |
904 | int off, adjust, oinsn; |
905 | bfd_signed_vma voff = 0; | |
b34976b6 | 906 | bfd_boolean overflow; |
252b5132 RH |
907 | |
908 | /* Get the new reloc address. */ | |
909 | nraddr = irel->r_offset; | |
910 | if ((irel->r_offset > addr | |
911 | && irel->r_offset < toaddr) | |
912 | || (ELF32_R_TYPE (irel->r_info) == (int) R_SH_ALIGN | |
913 | && irel->r_offset == toaddr)) | |
914 | nraddr -= count; | |
915 | ||
916 | /* See if this reloc was for the bytes we have deleted, in which | |
917 | case we no longer care about it. Don't delete relocs which | |
918 | represent addresses, though. */ | |
919 | if (irel->r_offset >= addr | |
920 | && irel->r_offset < addr + count | |
921 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_ALIGN | |
922 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE | |
923 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_DATA | |
924 | && ELF32_R_TYPE (irel->r_info) != (int) R_SH_LABEL) | |
925 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
926 | (int) R_SH_NONE); | |
927 | ||
928 | /* If this is a PC relative reloc, see if the range it covers | |
067653c5 | 929 | includes the bytes we have deleted. */ |
252b5132 RH |
930 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
931 | { | |
932 | default: | |
933 | break; | |
934 | ||
935 | case R_SH_DIR8WPN: | |
936 | case R_SH_IND12W: | |
937 | case R_SH_DIR8WPZ: | |
938 | case R_SH_DIR8WPL: | |
939 | start = irel->r_offset; | |
940 | insn = bfd_get_16 (abfd, contents + nraddr); | |
941 | break; | |
942 | } | |
943 | ||
944 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
945 | { | |
946 | default: | |
947 | start = stop = addr; | |
948 | break; | |
949 | ||
950 | case R_SH_DIR32: | |
951 | /* If this reloc is against a symbol defined in this | |
067653c5 AM |
952 | section, and the symbol will not be adjusted below, we |
953 | must check the addend to see it will put the value in | |
954 | range to be adjusted, and hence must be changed. */ | |
252b5132 RH |
955 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
956 | { | |
6cdc0ccc AM |
957 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
958 | if (isym->st_shndx == sec_shndx | |
959 | && (isym->st_value <= addr | |
960 | || isym->st_value >= toaddr)) | |
252b5132 RH |
961 | { |
962 | bfd_vma val; | |
963 | ||
55e6e397 RS |
964 | if (get_howto_table (abfd)[R_SH_DIR32].partial_inplace) |
965 | { | |
966 | val = bfd_get_32 (abfd, contents + nraddr); | |
967 | val += isym->st_value; | |
968 | if (val > addr && val < toaddr) | |
969 | bfd_put_32 (abfd, val - count, contents + nraddr); | |
970 | } | |
971 | else | |
972 | { | |
973 | val = isym->st_value + irel->r_addend; | |
974 | if (val > addr && val < toaddr) | |
975 | irel->r_addend -= count; | |
976 | } | |
252b5132 RH |
977 | } |
978 | } | |
979 | start = stop = addr; | |
980 | break; | |
981 | ||
982 | case R_SH_DIR8WPN: | |
983 | off = insn & 0xff; | |
984 | if (off & 0x80) | |
985 | off -= 0x100; | |
986 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
987 | break; | |
988 | ||
989 | case R_SH_IND12W: | |
bdfaef52 JR |
990 | off = insn & 0xfff; |
991 | if (! off) | |
992 | { | |
993 | /* This has been made by previous relaxation. Since the | |
994 | relocation will be against an external symbol, the | |
995 | final relocation will just do the right thing. */ | |
996 | start = stop = addr; | |
997 | } | |
252b5132 RH |
998 | else |
999 | { | |
252b5132 RH |
1000 | if (off & 0x800) |
1001 | off -= 0x1000; | |
1002 | stop = (bfd_vma) ((bfd_signed_vma) start + 4 + off * 2); | |
bdfaef52 JR |
1003 | |
1004 | /* The addend will be against the section symbol, thus | |
1005 | for adjusting the addend, the relevant start is the | |
1006 | start of the section. | |
4cc11e76 | 1007 | N.B. If we want to abandon in-place changes here and |
bdfaef52 JR |
1008 | test directly using symbol + addend, we have to take into |
1009 | account that the addend has already been adjusted by -4. */ | |
1010 | if (stop > addr && stop < toaddr) | |
1011 | irel->r_addend -= count; | |
252b5132 RH |
1012 | } |
1013 | break; | |
1014 | ||
1015 | case R_SH_DIR8WPZ: | |
1016 | off = insn & 0xff; | |
1017 | stop = start + 4 + off * 2; | |
1018 | break; | |
1019 | ||
1020 | case R_SH_DIR8WPL: | |
1021 | off = insn & 0xff; | |
435b1e90 | 1022 | stop = (start & ~(bfd_vma) 3) + 4 + off * 4; |
252b5132 RH |
1023 | break; |
1024 | ||
1025 | case R_SH_SWITCH8: | |
1026 | case R_SH_SWITCH16: | |
1027 | case R_SH_SWITCH32: | |
1028 | /* These relocs types represent | |
1029 | .word L2-L1 | |
06e1ba78 | 1030 | The r_addend field holds the difference between the reloc |
252b5132 RH |
1031 | address and L1. That is the start of the reloc, and |
1032 | adding in the contents gives us the top. We must adjust | |
06e1ba78 JR |
1033 | both the r_offset field and the section contents. |
1034 | N.B. in gas / coff bfd, the elf bfd r_addend is called r_offset, | |
1035 | and the elf bfd r_offset is called r_vaddr. */ | |
252b5132 | 1036 | |
06e1ba78 JR |
1037 | stop = irel->r_offset; |
1038 | start = (bfd_vma) ((bfd_signed_vma) stop - (long) irel->r_addend); | |
252b5132 RH |
1039 | |
1040 | if (start > addr | |
1041 | && start < toaddr | |
1042 | && (stop <= addr || stop >= toaddr)) | |
1043 | irel->r_addend += count; | |
1044 | else if (stop > addr | |
1045 | && stop < toaddr | |
1046 | && (start <= addr || start >= toaddr)) | |
1047 | irel->r_addend -= count; | |
1048 | ||
252b5132 RH |
1049 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH16) |
1050 | voff = bfd_get_signed_16 (abfd, contents + nraddr); | |
1051 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_SWITCH8) | |
1052 | voff = bfd_get_8 (abfd, contents + nraddr); | |
1053 | else | |
1054 | voff = bfd_get_signed_32 (abfd, contents + nraddr); | |
1055 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1056 | ||
1057 | break; | |
1058 | ||
1059 | case R_SH_USES: | |
1060 | start = irel->r_offset; | |
1061 | stop = (bfd_vma) ((bfd_signed_vma) start | |
1062 | + (long) irel->r_addend | |
1063 | + 4); | |
1064 | break; | |
1065 | } | |
1066 | ||
1067 | if (start > addr | |
1068 | && start < toaddr | |
1069 | && (stop <= addr || stop >= toaddr)) | |
1070 | adjust = count; | |
1071 | else if (stop > addr | |
1072 | && stop < toaddr | |
1073 | && (start <= addr || start >= toaddr)) | |
1074 | adjust = - count; | |
1075 | else | |
1076 | adjust = 0; | |
1077 | ||
1078 | if (adjust != 0) | |
1079 | { | |
1080 | oinsn = insn; | |
b34976b6 | 1081 | overflow = FALSE; |
252b5132 RH |
1082 | switch ((enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info)) |
1083 | { | |
1084 | default: | |
1085 | abort (); | |
1086 | break; | |
1087 | ||
1088 | case R_SH_DIR8WPN: | |
1089 | case R_SH_DIR8WPZ: | |
1090 | insn += adjust / 2; | |
1091 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1092 | overflow = TRUE; |
dc810e39 | 1093 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1094 | break; |
1095 | ||
1096 | case R_SH_IND12W: | |
1097 | insn += adjust / 2; | |
1098 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1099 | overflow = TRUE; |
dc810e39 | 1100 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1101 | break; |
1102 | ||
1103 | case R_SH_DIR8WPL: | |
1104 | BFD_ASSERT (adjust == count || count >= 4); | |
1105 | if (count >= 4) | |
1106 | insn += adjust / 4; | |
1107 | else | |
1108 | { | |
1109 | if ((irel->r_offset & 3) == 0) | |
1110 | ++insn; | |
1111 | } | |
1112 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1113 | overflow = TRUE; |
dc810e39 | 1114 | bfd_put_16 (abfd, (bfd_vma) insn, contents + nraddr); |
252b5132 RH |
1115 | break; |
1116 | ||
851cde10 JR |
1117 | case R_SH_SWITCH8: |
1118 | voff += adjust; | |
1119 | if (voff < 0 || voff >= 0xff) | |
b34976b6 | 1120 | overflow = TRUE; |
851cde10 JR |
1121 | bfd_put_8 (abfd, voff, contents + nraddr); |
1122 | break; | |
1123 | ||
252b5132 RH |
1124 | case R_SH_SWITCH16: |
1125 | voff += adjust; | |
1126 | if (voff < - 0x8000 || voff >= 0x8000) | |
b34976b6 | 1127 | overflow = TRUE; |
dc810e39 | 1128 | bfd_put_signed_16 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1129 | break; |
1130 | ||
1131 | case R_SH_SWITCH32: | |
1132 | voff += adjust; | |
dc810e39 | 1133 | bfd_put_signed_32 (abfd, (bfd_vma) voff, contents + nraddr); |
252b5132 RH |
1134 | break; |
1135 | ||
1136 | case R_SH_USES: | |
1137 | irel->r_addend += adjust; | |
1138 | break; | |
1139 | } | |
1140 | ||
1141 | if (overflow) | |
1142 | { | |
1143 | ((*_bfd_error_handler) | |
d003868e AM |
1144 | (_("%B: 0x%lx: fatal: reloc overflow while relaxing"), |
1145 | abfd, (unsigned long) irel->r_offset)); | |
252b5132 | 1146 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1147 | return FALSE; |
252b5132 RH |
1148 | } |
1149 | } | |
1150 | ||
1151 | irel->r_offset = nraddr; | |
1152 | } | |
1153 | ||
1154 | /* Look through all the other sections. If there contain any IMM32 | |
1155 | relocs against internal symbols which we are not going to adjust | |
1156 | below, we may need to adjust the addends. */ | |
1157 | for (o = abfd->sections; o != NULL; o = o->next) | |
1158 | { | |
1159 | Elf_Internal_Rela *internal_relocs; | |
1160 | Elf_Internal_Rela *irelscan, *irelscanend; | |
1161 | bfd_byte *ocontents; | |
1162 | ||
1163 | if (o == sec | |
1164 | || (o->flags & SEC_RELOC) == 0 | |
1165 | || o->reloc_count == 0) | |
1166 | continue; | |
1167 | ||
1168 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
b34976b6 | 1169 | FALSE, we should free them, if we are permitted to, when we |
067653c5 | 1170 | leave sh_coff_relax_section. */ |
45d6a902 | 1171 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 1172 | (abfd, o, NULL, (Elf_Internal_Rela *) NULL, TRUE)); |
252b5132 | 1173 | if (internal_relocs == NULL) |
b34976b6 | 1174 | return FALSE; |
252b5132 RH |
1175 | |
1176 | ocontents = NULL; | |
1177 | irelscanend = internal_relocs + o->reloc_count; | |
1178 | for (irelscan = internal_relocs; irelscan < irelscanend; irelscan++) | |
1179 | { | |
084aa3aa JR |
1180 | /* Dwarf line numbers use R_SH_SWITCH32 relocs. */ |
1181 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_SH_SWITCH32) | |
1182 | { | |
1183 | bfd_vma start, stop; | |
1184 | bfd_signed_vma voff; | |
1185 | ||
1186 | if (ocontents == NULL) | |
1187 | { | |
1188 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1189 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1190 | else | |
1191 | { | |
1192 | /* We always cache the section contents. | |
b34976b6 | 1193 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1194 | should free them, if we are permitted to, |
1195 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1196 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1197 | { | |
1198 | if (ocontents != NULL) | |
1199 | free (ocontents); | |
1200 | return FALSE; | |
1201 | } | |
1202 | ||
084aa3aa JR |
1203 | elf_section_data (o)->this_hdr.contents = ocontents; |
1204 | } | |
1205 | } | |
1206 | ||
1207 | stop = irelscan->r_offset; | |
1208 | start | |
1209 | = (bfd_vma) ((bfd_signed_vma) stop - (long) irelscan->r_addend); | |
1210 | ||
1211 | /* STOP is in a different section, so it won't change. */ | |
1212 | if (start > addr && start < toaddr) | |
1213 | irelscan->r_addend += count; | |
1214 | ||
1215 | voff = bfd_get_signed_32 (abfd, ocontents + irelscan->r_offset); | |
1216 | stop = (bfd_vma) ((bfd_signed_vma) start + voff); | |
1217 | ||
1218 | if (start > addr | |
1219 | && start < toaddr | |
1220 | && (stop <= addr || stop >= toaddr)) | |
dc810e39 | 1221 | bfd_put_signed_32 (abfd, (bfd_vma) voff + count, |
084aa3aa JR |
1222 | ocontents + irelscan->r_offset); |
1223 | else if (stop > addr | |
1224 | && stop < toaddr | |
1225 | && (start <= addr || start >= toaddr)) | |
dc810e39 | 1226 | bfd_put_signed_32 (abfd, (bfd_vma) voff - count, |
084aa3aa JR |
1227 | ocontents + irelscan->r_offset); |
1228 | } | |
1229 | ||
252b5132 RH |
1230 | if (ELF32_R_TYPE (irelscan->r_info) != (int) R_SH_DIR32) |
1231 | continue; | |
1232 | ||
1233 | if (ELF32_R_SYM (irelscan->r_info) >= symtab_hdr->sh_info) | |
1234 | continue; | |
1235 | ||
252b5132 | 1236 | |
6cdc0ccc AM |
1237 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); |
1238 | if (isym->st_shndx == sec_shndx | |
1239 | && (isym->st_value <= addr | |
1240 | || isym->st_value >= toaddr)) | |
252b5132 RH |
1241 | { |
1242 | bfd_vma val; | |
1243 | ||
1244 | if (ocontents == NULL) | |
1245 | { | |
1246 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1247 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1248 | else | |
1249 | { | |
1250 | /* We always cache the section contents. | |
b34976b6 | 1251 | Perhaps, if info->keep_memory is FALSE, we |
067653c5 AM |
1252 | should free them, if we are permitted to, |
1253 | when we leave sh_coff_relax_section. */ | |
eea6121a AM |
1254 | if (!bfd_malloc_and_get_section (abfd, o, &ocontents)) |
1255 | { | |
1256 | if (ocontents != NULL) | |
1257 | free (ocontents); | |
1258 | return FALSE; | |
1259 | } | |
1260 | ||
252b5132 RH |
1261 | elf_section_data (o)->this_hdr.contents = ocontents; |
1262 | } | |
1263 | } | |
1264 | ||
1265 | val = bfd_get_32 (abfd, ocontents + irelscan->r_offset); | |
6cdc0ccc | 1266 | val += isym->st_value; |
252b5132 RH |
1267 | if (val > addr && val < toaddr) |
1268 | bfd_put_32 (abfd, val - count, | |
1269 | ocontents + irelscan->r_offset); | |
1270 | } | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | /* Adjust the local symbols defined in this section. */ | |
6cdc0ccc AM |
1275 | isymend = isymbuf + symtab_hdr->sh_info; |
1276 | for (isym = isymbuf; isym < isymend; isym++) | |
252b5132 | 1277 | { |
6cdc0ccc AM |
1278 | if (isym->st_shndx == sec_shndx |
1279 | && isym->st_value > addr | |
1280 | && isym->st_value < toaddr) | |
1281 | isym->st_value -= count; | |
252b5132 RH |
1282 | } |
1283 | ||
1284 | /* Now adjust the global symbols defined in this section. */ | |
9ad5cbcf AM |
1285 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) |
1286 | - symtab_hdr->sh_info); | |
1287 | sym_hashes = elf_sym_hashes (abfd); | |
1288 | end_hashes = sym_hashes + symcount; | |
1289 | for (; sym_hashes < end_hashes; sym_hashes++) | |
252b5132 | 1290 | { |
9ad5cbcf AM |
1291 | struct elf_link_hash_entry *sym_hash = *sym_hashes; |
1292 | if ((sym_hash->root.type == bfd_link_hash_defined | |
1293 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1294 | && sym_hash->root.u.def.section == sec | |
1295 | && sym_hash->root.u.def.value > addr | |
1296 | && sym_hash->root.u.def.value < toaddr) | |
252b5132 | 1297 | { |
9ad5cbcf | 1298 | sym_hash->root.u.def.value -= count; |
252b5132 RH |
1299 | } |
1300 | } | |
1301 | ||
1302 | /* See if we can move the ALIGN reloc forward. We have adjusted | |
1303 | r_offset for it already. */ | |
1304 | if (irelalign != NULL) | |
1305 | { | |
1306 | bfd_vma alignto, alignaddr; | |
1307 | ||
1308 | alignto = BFD_ALIGN (toaddr, 1 << irelalign->r_addend); | |
1309 | alignaddr = BFD_ALIGN (irelalign->r_offset, | |
1310 | 1 << irelalign->r_addend); | |
1311 | if (alignto != alignaddr) | |
1312 | { | |
1313 | /* Tail recursion. */ | |
1314 | return sh_elf_relax_delete_bytes (abfd, sec, alignaddr, | |
dc810e39 | 1315 | (int) (alignto - alignaddr)); |
252b5132 RH |
1316 | } |
1317 | } | |
1318 | ||
b34976b6 | 1319 | return TRUE; |
252b5132 RH |
1320 | } |
1321 | ||
1322 | /* Look for loads and stores which we can align to four byte | |
1323 | boundaries. This is like sh_align_loads in coff-sh.c. */ | |
1324 | ||
b34976b6 | 1325 | static bfd_boolean |
09fd220b KK |
1326 | sh_elf_align_loads (bfd *abfd ATTRIBUTE_UNUSED, asection *sec, |
1327 | Elf_Internal_Rela *internal_relocs, | |
1328 | bfd_byte *contents ATTRIBUTE_UNUSED, | |
1329 | bfd_boolean *pswapped) | |
252b5132 RH |
1330 | { |
1331 | Elf_Internal_Rela *irel, *irelend; | |
1332 | bfd_vma *labels = NULL; | |
1333 | bfd_vma *label, *label_end; | |
dc810e39 | 1334 | bfd_size_type amt; |
252b5132 | 1335 | |
b34976b6 | 1336 | *pswapped = FALSE; |
252b5132 RH |
1337 | |
1338 | irelend = internal_relocs + sec->reloc_count; | |
1339 | ||
1340 | /* Get all the addresses with labels on them. */ | |
dc810e39 AM |
1341 | amt = sec->reloc_count; |
1342 | amt *= sizeof (bfd_vma); | |
1343 | labels = (bfd_vma *) bfd_malloc (amt); | |
252b5132 RH |
1344 | if (labels == NULL) |
1345 | goto error_return; | |
1346 | label_end = labels; | |
1347 | for (irel = internal_relocs; irel < irelend; irel++) | |
1348 | { | |
1349 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_LABEL) | |
1350 | { | |
1351 | *label_end = irel->r_offset; | |
1352 | ++label_end; | |
1353 | } | |
1354 | } | |
1355 | ||
1356 | /* Note that the assembler currently always outputs relocs in | |
1357 | address order. If that ever changes, this code will need to sort | |
1358 | the label values and the relocs. */ | |
1359 | ||
1360 | label = labels; | |
1361 | ||
1362 | for (irel = internal_relocs; irel < irelend; irel++) | |
1363 | { | |
1364 | bfd_vma start, stop; | |
1365 | ||
1366 | if (ELF32_R_TYPE (irel->r_info) != (int) R_SH_CODE) | |
1367 | continue; | |
1368 | ||
1369 | start = irel->r_offset; | |
1370 | ||
1371 | for (irel++; irel < irelend; irel++) | |
1372 | if (ELF32_R_TYPE (irel->r_info) == (int) R_SH_DATA) | |
1373 | break; | |
1374 | if (irel < irelend) | |
1375 | stop = irel->r_offset; | |
1376 | else | |
eea6121a | 1377 | stop = sec->size; |
252b5132 RH |
1378 | |
1379 | if (! _bfd_sh_align_load_span (abfd, sec, contents, sh_elf_swap_insns, | |
09fd220b | 1380 | internal_relocs, &label, |
252b5132 RH |
1381 | label_end, start, stop, pswapped)) |
1382 | goto error_return; | |
1383 | } | |
1384 | ||
1385 | free (labels); | |
1386 | ||
b34976b6 | 1387 | return TRUE; |
252b5132 RH |
1388 | |
1389 | error_return: | |
1390 | if (labels != NULL) | |
1391 | free (labels); | |
b34976b6 | 1392 | return FALSE; |
252b5132 RH |
1393 | } |
1394 | ||
85fbca6a | 1395 | #ifndef SH64_ELF |
252b5132 RH |
1396 | /* Swap two SH instructions. This is like sh_swap_insns in coff-sh.c. */ |
1397 | ||
b34976b6 | 1398 | static bfd_boolean |
09fd220b KK |
1399 | sh_elf_swap_insns (bfd *abfd, asection *sec, void *relocs, |
1400 | bfd_byte *contents, bfd_vma addr) | |
252b5132 RH |
1401 | { |
1402 | Elf_Internal_Rela *internal_relocs = (Elf_Internal_Rela *) relocs; | |
1403 | unsigned short i1, i2; | |
1404 | Elf_Internal_Rela *irel, *irelend; | |
1405 | ||
1406 | /* Swap the instructions themselves. */ | |
1407 | i1 = bfd_get_16 (abfd, contents + addr); | |
1408 | i2 = bfd_get_16 (abfd, contents + addr + 2); | |
dc810e39 AM |
1409 | bfd_put_16 (abfd, (bfd_vma) i2, contents + addr); |
1410 | bfd_put_16 (abfd, (bfd_vma) i1, contents + addr + 2); | |
252b5132 RH |
1411 | |
1412 | /* Adjust all reloc addresses. */ | |
1413 | irelend = internal_relocs + sec->reloc_count; | |
1414 | for (irel = internal_relocs; irel < irelend; irel++) | |
1415 | { | |
1416 | enum elf_sh_reloc_type type; | |
1417 | int add; | |
1418 | ||
1419 | /* There are a few special types of relocs that we don't want to | |
067653c5 AM |
1420 | adjust. These relocs do not apply to the instruction itself, |
1421 | but are only associated with the address. */ | |
252b5132 RH |
1422 | type = (enum elf_sh_reloc_type) ELF32_R_TYPE (irel->r_info); |
1423 | if (type == R_SH_ALIGN | |
1424 | || type == R_SH_CODE | |
1425 | || type == R_SH_DATA | |
1426 | || type == R_SH_LABEL) | |
1427 | continue; | |
1428 | ||
1429 | /* If an R_SH_USES reloc points to one of the addresses being | |
067653c5 AM |
1430 | swapped, we must adjust it. It would be incorrect to do this |
1431 | for a jump, though, since we want to execute both | |
1432 | instructions after the jump. (We have avoided swapping | |
1433 | around a label, so the jump will not wind up executing an | |
1434 | instruction it shouldn't). */ | |
252b5132 RH |
1435 | if (type == R_SH_USES) |
1436 | { | |
1437 | bfd_vma off; | |
1438 | ||
1439 | off = irel->r_offset + 4 + irel->r_addend; | |
1440 | if (off == addr) | |
1441 | irel->r_offset += 2; | |
1442 | else if (off == addr + 2) | |
1443 | irel->r_offset -= 2; | |
1444 | } | |
1445 | ||
1446 | if (irel->r_offset == addr) | |
1447 | { | |
1448 | irel->r_offset += 2; | |
1449 | add = -2; | |
1450 | } | |
1451 | else if (irel->r_offset == addr + 2) | |
1452 | { | |
1453 | irel->r_offset -= 2; | |
1454 | add = 2; | |
1455 | } | |
1456 | else | |
1457 | add = 0; | |
1458 | ||
1459 | if (add != 0) | |
1460 | { | |
1461 | bfd_byte *loc; | |
1462 | unsigned short insn, oinsn; | |
b34976b6 | 1463 | bfd_boolean overflow; |
252b5132 RH |
1464 | |
1465 | loc = contents + irel->r_offset; | |
b34976b6 | 1466 | overflow = FALSE; |
252b5132 RH |
1467 | switch (type) |
1468 | { | |
1469 | default: | |
1470 | break; | |
1471 | ||
1472 | case R_SH_DIR8WPN: | |
1473 | case R_SH_DIR8WPZ: | |
1474 | insn = bfd_get_16 (abfd, loc); | |
1475 | oinsn = insn; | |
1476 | insn += add / 2; | |
1477 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1478 | overflow = TRUE; |
dc810e39 | 1479 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1480 | break; |
1481 | ||
1482 | case R_SH_IND12W: | |
1483 | insn = bfd_get_16 (abfd, loc); | |
1484 | oinsn = insn; | |
1485 | insn += add / 2; | |
1486 | if ((oinsn & 0xf000) != (insn & 0xf000)) | |
b34976b6 | 1487 | overflow = TRUE; |
dc810e39 | 1488 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1489 | break; |
1490 | ||
1491 | case R_SH_DIR8WPL: | |
1492 | /* This reloc ignores the least significant 3 bits of | |
067653c5 AM |
1493 | the program counter before adding in the offset. |
1494 | This means that if ADDR is at an even address, the | |
1495 | swap will not affect the offset. If ADDR is an at an | |
1496 | odd address, then the instruction will be crossing a | |
1497 | four byte boundary, and must be adjusted. */ | |
252b5132 RH |
1498 | if ((addr & 3) != 0) |
1499 | { | |
1500 | insn = bfd_get_16 (abfd, loc); | |
1501 | oinsn = insn; | |
1502 | insn += add / 2; | |
1503 | if ((oinsn & 0xff00) != (insn & 0xff00)) | |
b34976b6 | 1504 | overflow = TRUE; |
dc810e39 | 1505 | bfd_put_16 (abfd, (bfd_vma) insn, loc); |
252b5132 RH |
1506 | } |
1507 | ||
1508 | break; | |
1509 | } | |
1510 | ||
1511 | if (overflow) | |
1512 | { | |
1513 | ((*_bfd_error_handler) | |
d003868e AM |
1514 | (_("%B: 0x%lx: fatal: reloc overflow while relaxing"), |
1515 | abfd, (unsigned long) irel->r_offset)); | |
252b5132 | 1516 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 1517 | return FALSE; |
252b5132 RH |
1518 | } |
1519 | } | |
1520 | } | |
1521 | ||
b34976b6 | 1522 | return TRUE; |
252b5132 | 1523 | } |
85fbca6a | 1524 | #endif /* defined SH64_ELF */ |
252b5132 | 1525 | \f |
55e6e397 RS |
1526 | /* Describes one of the various PLT styles. */ |
1527 | ||
1528 | struct elf_sh_plt_info | |
1529 | { | |
1530 | /* The template for the first PLT entry, or NULL if there is no special | |
1531 | first entry. */ | |
1532 | const bfd_byte *plt0_entry; | |
1533 | ||
1534 | /* The size of PLT0_ENTRY in bytes, or 0 if PLT0_ENTRY is NULL. */ | |
1535 | bfd_vma plt0_entry_size; | |
1536 | ||
1537 | /* Index I is the offset into PLT0_ENTRY of a pointer to | |
1538 | _GLOBAL_OFFSET_TABLE_ + I * 4. The value is MINUS_ONE | |
1539 | if there is no such pointer. */ | |
1540 | bfd_vma plt0_got_fields[3]; | |
1541 | ||
1542 | /* The template for a symbol's PLT entry. */ | |
1543 | const bfd_byte *symbol_entry; | |
1544 | ||
1545 | /* The size of SYMBOL_ENTRY in bytes. */ | |
1546 | bfd_vma symbol_entry_size; | |
1547 | ||
1548 | /* Byte offsets of fields in SYMBOL_ENTRY. Not all fields are used | |
1549 | on all targets. The comments by each member indicate the value | |
1550 | that the field must hold. */ | |
1551 | struct { | |
1552 | bfd_vma got_entry; /* the address of the symbol's .got.plt entry */ | |
1553 | bfd_vma plt; /* .plt (or a branch to .plt on VxWorks) */ | |
1554 | bfd_vma reloc_offset; /* the offset of the symbol's JMP_SLOT reloc */ | |
1555 | } symbol_fields; | |
1556 | ||
1557 | /* The offset of the resolver stub from the start of SYMBOL_ENTRY. */ | |
1558 | bfd_vma symbol_resolve_offset; | |
1559 | }; | |
1560 | ||
fbca6ad9 AO |
1561 | #ifdef INCLUDE_SHMEDIA |
1562 | ||
1563 | /* The size in bytes of an entry in the procedure linkage table. */ | |
1564 | ||
55e6e397 | 1565 | #define ELF_PLT_ENTRY_SIZE 64 |
fbca6ad9 AO |
1566 | |
1567 | /* First entry in an absolute procedure linkage table look like this. */ | |
1568 | ||
55e6e397 | 1569 | static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1570 | { |
1571 | 0xcc, 0x00, 0x01, 0x10, /* movi .got.plt >> 16, r17 */ | |
1572 | 0xc8, 0x00, 0x01, 0x10, /* shori .got.plt & 65535, r17 */ | |
1573 | 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */ | |
c8614e8e | 1574 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ |
fbca6ad9 AO |
1575 | 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */ |
1576 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
1577 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1578 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1579 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1580 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1581 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1582 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1583 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1584 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1585 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1586 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1587 | }; | |
1588 | ||
55e6e397 | 1589 | static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1590 | { |
1591 | 0x10, 0x01, 0x00, 0xcc, /* movi .got.plt >> 16, r17 */ | |
1592 | 0x10, 0x01, 0x00, 0xc8, /* shori .got.plt & 65535, r17 */ | |
1593 | 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */ | |
c8614e8e | 1594 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ |
fbca6ad9 AO |
1595 | 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */ |
1596 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
1597 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1598 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1599 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1600 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1601 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1602 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1603 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1604 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1605 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1606 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1607 | }; | |
1608 | ||
1609 | /* Sebsequent entries in an absolute procedure linkage table look like | |
1610 | this. */ | |
1611 | ||
55e6e397 | 1612 | static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1613 | { |
1614 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN-in-GOT >> 16, r25 */ | |
1615 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN-in-GOT & 65535, r25 */ | |
1616 | 0x89, 0x90, 0x01, 0x90, /* ld.l r25, 0, r25 */ | |
1617 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
1618 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
1619 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1620 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1621 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1622 | 0xcc, 0x00, 0x01, 0x90, /* movi .PLT0 >> 16, r25 */ | |
1623 | 0xc8, 0x00, 0x01, 0x90, /* shori .PLT0 & 65535, r25 */ | |
1624 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
1625 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ | |
1626 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ | |
1627 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
1628 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1629 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1630 | }; | |
1631 | ||
55e6e397 | 1632 | static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1633 | { |
1634 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN-in-GOT >> 16, r25 */ | |
1635 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN-in-GOT & 65535, r25 */ | |
1636 | 0x90, 0x01, 0x90, 0x89, /* ld.l r25, 0, r25 */ | |
1637 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
1638 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
1639 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1640 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1641 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1642 | 0x90, 0x01, 0x00, 0xcc, /* movi .PLT0 >> 16, r25 */ | |
1643 | 0x90, 0x01, 0x00, 0xc8, /* shori .PLT0 & 65535, r25 */ | |
1644 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
1645 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ | |
1646 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ | |
1647 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
1648 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1649 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1650 | }; | |
1651 | ||
1652 | /* Entries in a PIC procedure linkage table look like this. */ | |
1653 | ||
55e6e397 | 1654 | static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1655 | { |
1656 | 0xcc, 0x00, 0x01, 0x90, /* movi nameN@GOT >> 16, r25 */ | |
1657 | 0xc8, 0x00, 0x01, 0x90, /* shori nameN@GOT & 65535, r25 */ | |
1658 | 0x40, 0xc2, 0x65, 0x90, /* ldx.l r12, r25, r25 */ | |
1659 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
1660 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
1661 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1662 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1663 | 0x6f, 0xf0, 0xff, 0xf0, /* nop */ | |
1664 | 0xce, 0x00, 0x01, 0x10, /* movi -GOT_BIAS, r17 */ | |
0a4ef3f4 | 1665 | 0x00, 0xc8, 0x45, 0x10, /* add.l r12, r17, r17 */ |
fbca6ad9 AO |
1666 | 0x89, 0x10, 0x09, 0x90, /* ld.l r17, 8, r25 */ |
1667 | 0x6b, 0xf1, 0x66, 0x00, /* ptabs r25, tr0 */ | |
1668 | 0x89, 0x10, 0x05, 0x10, /* ld.l r17, 4, r17 */ | |
1669 | 0xcc, 0x00, 0x01, 0x50, /* movi reloc-offset >> 16, r21 */ | |
1670 | 0xc8, 0x00, 0x01, 0x50, /* shori reloc-offset & 65535, r21 */ | |
1671 | 0x44, 0x01, 0xff, 0xf0, /* blink tr0, r63 */ | |
1672 | }; | |
1673 | ||
55e6e397 | 1674 | static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
fbca6ad9 AO |
1675 | { |
1676 | 0x90, 0x01, 0x00, 0xcc, /* movi nameN@GOT >> 16, r25 */ | |
1677 | 0x90, 0x01, 0x00, 0xc8, /* shori nameN@GOT & 65535, r25 */ | |
1678 | 0x90, 0x65, 0xc2, 0x40, /* ldx.l r12, r25, r25 */ | |
1679 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
1680 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
1681 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1682 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1683 | 0xf0, 0xff, 0xf0, 0x6f, /* nop */ | |
1684 | 0x10, 0x01, 0x00, 0xce, /* movi -GOT_BIAS, r17 */ | |
0a4ef3f4 | 1685 | 0x10, 0x45, 0xc8, 0x00, /* add.l r12, r17, r17 */ |
fbca6ad9 AO |
1686 | 0x90, 0x09, 0x10, 0x89, /* ld.l r17, 8, r25 */ |
1687 | 0x00, 0x66, 0xf1, 0x6b, /* ptabs r25, tr0 */ | |
1688 | 0x10, 0x05, 0x10, 0x89, /* ld.l r17, 4, r17 */ | |
1689 | 0x50, 0x01, 0x00, 0xcc, /* movi reloc-offset >> 16, r21 */ | |
1690 | 0x50, 0x01, 0x00, 0xc8, /* shori reloc-offset & 65535, r21 */ | |
1691 | 0xf0, 0xff, 0x01, 0x44, /* blink tr0, r63 */ | |
1692 | }; | |
1693 | ||
55e6e397 RS |
1694 | static const struct elf_sh_plt_info elf_sh_plts[2][2] = { |
1695 | { | |
1696 | { | |
1697 | /* Big-endian non-PIC. */ | |
1698 | elf_sh_plt0_entry_be, | |
1699 | ELF_PLT_ENTRY_SIZE, | |
1700 | { 0, MINUS_ONE, MINUS_ONE }, | |
1701 | elf_sh_plt_entry_be, | |
1702 | ELF_PLT_ENTRY_SIZE, | |
1703 | { 0, 32, 48 }, | |
1704 | 33 /* includes ISA encoding */ | |
1705 | }, | |
1706 | { | |
1707 | /* Little-endian non-PIC. */ | |
1708 | elf_sh_plt0_entry_le, | |
1709 | ELF_PLT_ENTRY_SIZE, | |
1710 | { 0, MINUS_ONE, MINUS_ONE }, | |
1711 | elf_sh_plt_entry_le, | |
1712 | ELF_PLT_ENTRY_SIZE, | |
1713 | { 0, 32, 48 }, | |
1714 | 33 /* includes ISA encoding */ | |
1715 | }, | |
1716 | }, | |
1717 | { | |
1718 | { | |
1719 | /* Big-endian PIC. */ | |
1720 | elf_sh_plt0_entry_be, | |
1721 | ELF_PLT_ENTRY_SIZE, | |
1722 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1723 | elf_sh_pic_plt_entry_be, | |
1724 | ELF_PLT_ENTRY_SIZE, | |
1725 | { 0, MINUS_ONE, 52 }, | |
1726 | 33 /* includes ISA encoding */ | |
1727 | }, | |
1728 | { | |
1729 | /* Little-endian PIC. */ | |
1730 | elf_sh_plt0_entry_le, | |
1731 | ELF_PLT_ENTRY_SIZE, | |
1732 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1733 | elf_sh_pic_plt_entry_le, | |
1734 | ELF_PLT_ENTRY_SIZE, | |
1735 | { 0, MINUS_ONE, 52 }, | |
1736 | 33 /* includes ISA encoding */ | |
1737 | }, | |
1738 | } | |
1739 | }; | |
fbca6ad9 AO |
1740 | |
1741 | /* Return offset of the linker in PLT0 entry. */ | |
1742 | #define elf_sh_plt0_gotplt_offset(info) 0 | |
1743 | ||
55e6e397 RS |
1744 | /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD. |
1745 | VALUE is the field's value and CODE_P is true if VALUE refers to code, | |
1746 | not data. | |
fbca6ad9 | 1747 | |
55e6e397 | 1748 | On SH64, each 32-bit field is loaded by a movi/shori pair. */ |
fbca6ad9 AO |
1749 | |
1750 | inline static void | |
55e6e397 RS |
1751 | install_plt_field (bfd *output_bfd, bfd_boolean code_p, |
1752 | unsigned long value, bfd_byte *addr) | |
fbca6ad9 | 1753 | { |
55e6e397 | 1754 | value |= code_p; |
fbca6ad9 AO |
1755 | bfd_put_32 (output_bfd, |
1756 | bfd_get_32 (output_bfd, addr) | |
1757 | | ((value >> 6) & 0x3fffc00), | |
1758 | addr); | |
1759 | bfd_put_32 (output_bfd, | |
1760 | bfd_get_32 (output_bfd, addr + 4) | |
1761 | | ((value << 10) & 0x3fffc00), | |
1762 | addr + 4); | |
1763 | } | |
1764 | ||
55e6e397 RS |
1765 | /* Return the type of PLT associated with ABFD. PIC_P is true if |
1766 | the object is position-independent. */ | |
1767 | ||
1768 | static const struct elf_sh_plt_info * | |
1769 | get_plt_info (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean pic_p) | |
1770 | { | |
1771 | return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
1772 | } | |
fbca6ad9 | 1773 | #else |
37c644f2 | 1774 | /* The size in bytes of an entry in the procedure linkage table. */ |
252b5132 | 1775 | |
55e6e397 | 1776 | #define ELF_PLT_ENTRY_SIZE 28 |
37c644f2 AO |
1777 | |
1778 | /* First entry in an absolute procedure linkage table look like this. */ | |
1779 | ||
6c426cf3 | 1780 | /* Note - this code has been "optimised" not to use r2. r2 is used by |
4cc11e76 | 1781 | GCC to return the address of large structures, so it should not be |
6c426cf3 NC |
1782 | corrupted here. This does mean however, that this PLT does not conform |
1783 | to the SH PIC ABI. That spec says that r0 contains the type of the PLT | |
1784 | and r2 contains the GOT id. This version stores the GOT id in r0 and | |
1785 | ignores the type. Loaders can easily detect this difference however, | |
1786 | since the type will always be 0 or 8, and the GOT ids will always be | |
1787 | greater than or equal to 12. */ | |
55e6e397 | 1788 | static const bfd_byte elf_sh_plt0_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1789 | { |
1790 | 0xd0, 0x05, /* mov.l 2f,r0 */ | |
1791 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1792 | 0x2f, 0x06, /* mov.l r0,@-r15 */ | |
1793 | 0xd0, 0x03, /* mov.l 1f,r0 */ | |
1794 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1795 | 0x40, 0x2b, /* jmp @r0 */ | |
1796 | 0x60, 0xf6, /* mov.l @r15+,r0 */ | |
1797 | 0x00, 0x09, /* nop */ | |
1798 | 0x00, 0x09, /* nop */ | |
1799 | 0x00, 0x09, /* nop */ | |
1800 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1801 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1802 | }; | |
1803 | ||
55e6e397 | 1804 | static const bfd_byte elf_sh_plt0_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1805 | { |
1806 | 0x05, 0xd0, /* mov.l 2f,r0 */ | |
1807 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1808 | 0x06, 0x2f, /* mov.l r0,@-r15 */ | |
1809 | 0x03, 0xd0, /* mov.l 1f,r0 */ | |
1810 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1811 | 0x2b, 0x40, /* jmp @r0 */ | |
1812 | 0xf6, 0x60, /* mov.l @r15+,r0 */ | |
1813 | 0x09, 0x00, /* nop */ | |
1814 | 0x09, 0x00, /* nop */ | |
1815 | 0x09, 0x00, /* nop */ | |
1816 | 0, 0, 0, 0, /* 1: replaced with address of .got.plt + 8. */ | |
1817 | 0, 0, 0, 0, /* 2: replaced with address of .got.plt + 4. */ | |
1818 | }; | |
1819 | ||
1820 | /* Sebsequent entries in an absolute procedure linkage table look like | |
1821 | this. */ | |
1822 | ||
55e6e397 | 1823 | static const bfd_byte elf_sh_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1824 | { |
1825 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
55e6e397 | 1826 | 0x60, 0x02, /* mov.l @(r0,r12),r0 */ |
6c426cf3 NC |
1827 | 0xd1, 0x02, /* mov.l 0f,r1 */ |
1828 | 0x40, 0x2b, /* jmp @r0 */ | |
1829 | 0x60, 0x13, /* mov r1,r0 */ | |
1830 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1831 | 0x40, 0x2b, /* jmp @r0 */ | |
1832 | 0x00, 0x09, /* nop */ | |
1833 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1834 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1835 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1836 | }; | |
1837 | ||
55e6e397 | 1838 | static const bfd_byte elf_sh_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1839 | { |
1840 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1841 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1842 | 0x02, 0xd1, /* mov.l 0f,r1 */ | |
1843 | 0x2b, 0x40, /* jmp @r0 */ | |
1844 | 0x13, 0x60, /* mov r1,r0 */ | |
1845 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1846 | 0x2b, 0x40, /* jmp @r0 */ | |
1847 | 0x09, 0x00, /* nop */ | |
1848 | 0, 0, 0, 0, /* 0: replaced with address of .PLT0. */ | |
1849 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1850 | 0, 0, 0, 0, /* 2: replaced with offset into relocation table. */ | |
1851 | }; | |
1852 | ||
1853 | /* Entries in a PIC procedure linkage table look like this. */ | |
1854 | ||
55e6e397 | 1855 | static const bfd_byte elf_sh_pic_plt_entry_be[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1856 | { |
1857 | 0xd0, 0x04, /* mov.l 1f,r0 */ | |
1858 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1859 | 0x40, 0x2b, /* jmp @r0 */ | |
1860 | 0x00, 0x09, /* nop */ | |
1861 | 0x50, 0xc2, /* mov.l @(8,r12),r0 */ | |
1862 | 0xd1, 0x03, /* mov.l 2f,r1 */ | |
1863 | 0x40, 0x2b, /* jmp @r0 */ | |
1864 | 0x50, 0xc1, /* mov.l @(4,r12),r0 */ | |
1865 | 0x00, 0x09, /* nop */ | |
1866 | 0x00, 0x09, /* nop */ | |
1867 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1868 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1869 | }; | |
1870 | ||
55e6e397 | 1871 | static const bfd_byte elf_sh_pic_plt_entry_le[ELF_PLT_ENTRY_SIZE] = |
6c426cf3 NC |
1872 | { |
1873 | 0x04, 0xd0, /* mov.l 1f,r0 */ | |
1874 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
1875 | 0x2b, 0x40, /* jmp @r0 */ | |
1876 | 0x09, 0x00, /* nop */ | |
1877 | 0xc2, 0x50, /* mov.l @(8,r12),r0 */ | |
1878 | 0x03, 0xd1, /* mov.l 2f,r1 */ | |
1879 | 0x2b, 0x40, /* jmp @r0 */ | |
1880 | 0xc1, 0x50, /* mov.l @(4,r12),r0 */ | |
1881 | 0x09, 0x00, /* nop */ | |
1882 | 0x09, 0x00, /* nop */ | |
1883 | 0, 0, 0, 0, /* 1: replaced with address of this symbol in .got. */ | |
1884 | 0, 0, 0, 0 /* 2: replaced with offset into relocation table. */ | |
1885 | }; | |
1886 | ||
55e6e397 RS |
1887 | static const struct elf_sh_plt_info elf_sh_plts[2][2] = { |
1888 | { | |
1889 | { | |
1890 | /* Big-endian non-PIC. */ | |
1891 | elf_sh_plt0_entry_be, | |
1892 | ELF_PLT_ENTRY_SIZE, | |
1893 | { MINUS_ONE, 24, 20 }, | |
1894 | elf_sh_plt_entry_be, | |
1895 | ELF_PLT_ENTRY_SIZE, | |
1896 | { 20, 16, 24 }, | |
1897 | 8 | |
1898 | }, | |
1899 | { | |
1900 | /* Little-endian non-PIC. */ | |
1901 | elf_sh_plt0_entry_le, | |
1902 | ELF_PLT_ENTRY_SIZE, | |
1903 | { MINUS_ONE, 24, 20 }, | |
1904 | elf_sh_plt_entry_le, | |
1905 | ELF_PLT_ENTRY_SIZE, | |
1906 | { 20, 16, 24 }, | |
1907 | 8 | |
1908 | }, | |
1909 | }, | |
1910 | { | |
1911 | { | |
1912 | /* Big-endian PIC. */ | |
1913 | elf_sh_plt0_entry_be, | |
1914 | ELF_PLT_ENTRY_SIZE, | |
1915 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1916 | elf_sh_pic_plt_entry_be, | |
1917 | ELF_PLT_ENTRY_SIZE, | |
1918 | { 20, MINUS_ONE, 24 }, | |
1919 | 8 | |
1920 | }, | |
1921 | { | |
1922 | /* Little-endian PIC. */ | |
1923 | elf_sh_plt0_entry_le, | |
1924 | ELF_PLT_ENTRY_SIZE, | |
1925 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
1926 | elf_sh_pic_plt_entry_le, | |
1927 | ELF_PLT_ENTRY_SIZE, | |
1928 | { 20, MINUS_ONE, 24 }, | |
1929 | 8 | |
1930 | }, | |
1931 | } | |
1932 | }; | |
252b5132 | 1933 | |
55e6e397 RS |
1934 | #define VXWORKS_PLT_HEADER_SIZE 12 |
1935 | #define VXWORKS_PLT_ENTRY_SIZE 24 | |
252b5132 | 1936 | |
55e6e397 RS |
1937 | static const bfd_byte vxworks_sh_plt0_entry_be[VXWORKS_PLT_HEADER_SIZE] = |
1938 | { | |
1939 | 0xd1, 0x01, /* mov.l @(8,pc),r1 */ | |
1940 | 0x61, 0x12, /* mov.l @r1,r1 */ | |
1941 | 0x41, 0x2b, /* jmp @r1 */ | |
1942 | 0x00, 0x09, /* nop */ | |
1943 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1944 | }; | |
252b5132 | 1945 | |
55e6e397 RS |
1946 | static const bfd_byte vxworks_sh_plt0_entry_le[VXWORKS_PLT_HEADER_SIZE] = |
1947 | { | |
1948 | 0x01, 0xd1, /* mov.l @(8,pc),r1 */ | |
1949 | 0x12, 0x61, /* mov.l @r1,r1 */ | |
1950 | 0x2b, 0x41, /* jmp @r1 */ | |
1951 | 0x09, 0x00, /* nop */ | |
1952 | 0, 0, 0, 0 /* 0: replaced with _GLOBAL_OFFSET_TABLE+8. */ | |
1953 | }; | |
1954 | ||
1955 | static const bfd_byte vxworks_sh_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1956 | { | |
1957 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1958 | 0x60, 0x02, /* mov.l @r0,r0 */ | |
1959 | 0x40, 0x2b, /* jmp @r0 */ | |
1960 | 0x00, 0x09, /* nop */ | |
1961 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1962 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1963 | 0xa0, 0x00, /* bra PLT (We need to fix the offset.) */ | |
1964 | 0x00, 0x09, /* nop */ | |
1965 | 0x00, 0x09, /* nop */ | |
1966 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1967 | }; | |
1968 | ||
1969 | static const bfd_byte vxworks_sh_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1970 | { | |
1971 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1972 | 0x02, 0x60, /* mov.l @r0,r0 */ | |
1973 | 0x2b, 0x40, /* jmp @r0 */ | |
1974 | 0x09, 0x00, /* nop */ | |
1975 | 0, 0, 0, 0, /* 0: replaced with address of this symbol in .got. */ | |
1976 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
1977 | 0x00, 0xa0, /* bra PLT (We need to fix the offset.) */ | |
1978 | 0x09, 0x00, /* nop */ | |
1979 | 0x09, 0x00, /* nop */ | |
1980 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1981 | }; | |
1982 | ||
1983 | static const bfd_byte vxworks_sh_pic_plt_entry_be[VXWORKS_PLT_ENTRY_SIZE] = | |
1984 | { | |
1985 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1986 | 0x00, 0xce, /* mov.l @(r0,r12),r0 */ | |
1987 | 0x40, 0x2b, /* jmp @r0 */ | |
1988 | 0x00, 0x09, /* nop */ | |
1989 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
1990 | 0xd0, 0x01, /* mov.l @(8,pc),r0 */ | |
1991 | 0x51, 0xc2, /* mov.l @(8,r12),r1 */ | |
1992 | 0x41, 0x2b, /* jmp @r1 */ | |
1993 | 0x00, 0x09, /* nop */ | |
1994 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
1995 | }; | |
1996 | ||
1997 | static const bfd_byte vxworks_sh_pic_plt_entry_le[VXWORKS_PLT_ENTRY_SIZE] = | |
1998 | { | |
1999 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
2000 | 0xce, 0x00, /* mov.l @(r0,r12),r0 */ | |
2001 | 0x2b, 0x40, /* jmp @r0 */ | |
2002 | 0x09, 0x00, /* nop */ | |
2003 | 0, 0, 0, 0, /* 0: replaced with offset of this symbol in .got. */ | |
2004 | 0x01, 0xd0, /* mov.l @(8,pc),r0 */ | |
2005 | 0xc2, 0x51, /* mov.l @(8,r12),r1 */ | |
2006 | 0x2b, 0x41, /* jmp @r1 */ | |
2007 | 0x09, 0x00, /* nop */ | |
2008 | 0, 0, 0, 0, /* 1: replaced with offset into relocation table. */ | |
2009 | }; | |
2010 | ||
2011 | static const struct elf_sh_plt_info vxworks_sh_plts[2][2] = { | |
2012 | { | |
2013 | { | |
2014 | /* Big-endian non-PIC. */ | |
2015 | vxworks_sh_plt0_entry_be, | |
2016 | VXWORKS_PLT_HEADER_SIZE, | |
2017 | { MINUS_ONE, MINUS_ONE, 8 }, | |
2018 | vxworks_sh_plt_entry_be, | |
2019 | VXWORKS_PLT_ENTRY_SIZE, | |
2020 | { 8, 14, 20 }, | |
2021 | 12 | |
2022 | }, | |
2023 | { | |
2024 | /* Little-endian non-PIC. */ | |
2025 | vxworks_sh_plt0_entry_le, | |
2026 | VXWORKS_PLT_HEADER_SIZE, | |
2027 | { MINUS_ONE, MINUS_ONE, 8 }, | |
2028 | vxworks_sh_plt_entry_le, | |
2029 | VXWORKS_PLT_ENTRY_SIZE, | |
2030 | { 8, 14, 20 }, | |
2031 | 12 | |
2032 | }, | |
2033 | }, | |
2034 | { | |
2035 | { | |
2036 | /* Big-endian PIC. */ | |
2037 | NULL, | |
2038 | 0, | |
2039 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
2040 | vxworks_sh_pic_plt_entry_be, | |
2041 | VXWORKS_PLT_ENTRY_SIZE, | |
2042 | { 8, MINUS_ONE, 20 }, | |
2043 | 12 | |
2044 | }, | |
2045 | { | |
2046 | /* Little-endian PIC. */ | |
2047 | NULL, | |
2048 | 0, | |
2049 | { MINUS_ONE, MINUS_ONE, MINUS_ONE }, | |
2050 | vxworks_sh_pic_plt_entry_le, | |
2051 | VXWORKS_PLT_ENTRY_SIZE, | |
2052 | { 8, MINUS_ONE, 20 }, | |
2053 | 12 | |
2054 | }, | |
2055 | } | |
2056 | }; | |
9bdafcce | 2057 | |
55e6e397 RS |
2058 | /* Return the type of PLT associated with ABFD. PIC_P is true if |
2059 | the object is position-independent. */ | |
9bdafcce | 2060 | |
55e6e397 RS |
2061 | static const struct elf_sh_plt_info * |
2062 | get_plt_info (bfd *abfd ATTRIBUTE_UNUSED, bfd_boolean pic_p) | |
2063 | { | |
2064 | if (vxworks_object_p (abfd)) | |
2065 | return &vxworks_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2066 | return &elf_sh_plts[pic_p][!bfd_big_endian (abfd)]; | |
2067 | } | |
9bdafcce | 2068 | |
55e6e397 RS |
2069 | /* Install a 32-bit PLT field starting at ADDR, which occurs in OUTPUT_BFD. |
2070 | VALUE is the field's value and CODE_P is true if VALUE refers to code, | |
2071 | not data. */ | |
9bdafcce | 2072 | |
55e6e397 RS |
2073 | inline static void |
2074 | install_plt_field (bfd *output_bfd, bfd_boolean code_p ATTRIBUTE_UNUSED, | |
2075 | unsigned long value, bfd_byte *addr) | |
2076 | { | |
2077 | bfd_put_32 (output_bfd, value, addr); | |
2078 | } | |
fbca6ad9 | 2079 | #endif |
015551fc | 2080 | |
55e6e397 RS |
2081 | /* Return the index of the PLT entry at byte offset OFFSET. */ |
2082 | ||
2083 | static bfd_vma | |
2084 | get_plt_index (const struct elf_sh_plt_info *info, bfd_vma offset) | |
2085 | { | |
2086 | return (offset - info->plt0_entry_size) / info->symbol_entry_size; | |
2087 | } | |
2088 | ||
2089 | /* Do the inverse operation. */ | |
2090 | ||
2091 | static bfd_vma | |
2092 | get_plt_offset (const struct elf_sh_plt_info *info, bfd_vma index) | |
2093 | { | |
2094 | return info->plt0_entry_size + (index * info->symbol_entry_size); | |
2095 | } | |
2096 | ||
37c644f2 | 2097 | /* The sh linker needs to keep track of the number of relocs that it |
067653c5 AM |
2098 | decides to copy as dynamic relocs in check_relocs for each symbol. |
2099 | This is so that it can later discard them if they are found to be | |
2100 | unnecessary. We store the information in a field extending the | |
2101 | regular ELF linker hash table. */ | |
252b5132 | 2102 | |
067653c5 | 2103 | struct elf_sh_dyn_relocs |
38b1a46c | 2104 | { |
067653c5 AM |
2105 | struct elf_sh_dyn_relocs *next; |
2106 | ||
2107 | /* The input section of the reloc. */ | |
2108 | asection *sec; | |
2109 | ||
2110 | /* Total number of relocs copied for the input section. */ | |
37c644f2 | 2111 | bfd_size_type count; |
067653c5 AM |
2112 | |
2113 | /* Number of pc-relative relocs copied for the input section. */ | |
2114 | bfd_size_type pc_count; | |
37c644f2 | 2115 | }; |
252b5132 | 2116 | |
37c644f2 AO |
2117 | /* sh ELF linker hash entry. */ |
2118 | ||
38b1a46c NC |
2119 | struct elf_sh_link_hash_entry |
2120 | { | |
37c644f2 AO |
2121 | struct elf_link_hash_entry root; |
2122 | ||
fbca6ad9 | 2123 | #ifdef INCLUDE_SHMEDIA |
396a6083 SC |
2124 | union |
2125 | { | |
2126 | bfd_signed_vma refcount; | |
2127 | bfd_vma offset; | |
2128 | } datalabel_got; | |
fbca6ad9 AO |
2129 | #endif |
2130 | ||
067653c5 AM |
2131 | /* Track dynamic relocs copied for this symbol. */ |
2132 | struct elf_sh_dyn_relocs *dyn_relocs; | |
4989d792 SC |
2133 | |
2134 | bfd_signed_vma gotplt_refcount; | |
3376eaf5 KK |
2135 | |
2136 | enum { | |
2137 | GOT_UNKNOWN = 0, GOT_NORMAL, GOT_TLS_GD, GOT_TLS_IE | |
2138 | } tls_type; | |
3376eaf5 KK |
2139 | }; |
2140 | ||
2141 | #define sh_elf_hash_entry(ent) ((struct elf_sh_link_hash_entry *)(ent)) | |
2142 | ||
2143 | struct sh_elf_obj_tdata | |
2144 | { | |
2145 | struct elf_obj_tdata root; | |
2146 | ||
2147 | /* tls_type for each local got entry. */ | |
2148 | char *local_got_tls_type; | |
37c644f2 AO |
2149 | }; |
2150 | ||
3376eaf5 KK |
2151 | #define sh_elf_tdata(abfd) \ |
2152 | ((struct sh_elf_obj_tdata *) (abfd)->tdata.any) | |
2153 | ||
2154 | #define sh_elf_local_got_tls_type(abfd) \ | |
2155 | (sh_elf_tdata (abfd)->local_got_tls_type) | |
2156 | ||
0ffa91dd NC |
2157 | #define is_sh_elf(bfd) \ |
2158 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
2159 | && elf_tdata (bfd) != NULL \ | |
2160 | && elf_object_id (bfd) == SH_ELF_TDATA) | |
2161 | ||
3376eaf5 KK |
2162 | /* Override the generic function because we need to store sh_elf_obj_tdata |
2163 | as the specific tdata. */ | |
2164 | ||
b34976b6 | 2165 | static bfd_boolean |
09fd220b | 2166 | sh_elf_mkobject (bfd *abfd) |
3376eaf5 | 2167 | { |
0ffa91dd NC |
2168 | return bfd_elf_allocate_object (abfd, sizeof (struct sh_elf_obj_tdata), |
2169 | SH_ELF_TDATA); | |
3376eaf5 | 2170 | } |
b34976b6 | 2171 | |
37c644f2 AO |
2172 | /* sh ELF linker hash table. */ |
2173 | ||
38b1a46c NC |
2174 | struct elf_sh_link_hash_table |
2175 | { | |
37c644f2 | 2176 | struct elf_link_hash_table root; |
37c644f2 | 2177 | |
067653c5 AM |
2178 | /* Short-cuts to get to dynamic linker sections. */ |
2179 | asection *sgot; | |
2180 | asection *sgotplt; | |
2181 | asection *srelgot; | |
2182 | asection *splt; | |
2183 | asection *srelplt; | |
2184 | asection *sdynbss; | |
2185 | asection *srelbss; | |
37c644f2 | 2186 | |
55e6e397 RS |
2187 | /* The (unloaded but important) VxWorks .rela.plt.unloaded section. */ |
2188 | asection *srelplt2; | |
2189 | ||
067653c5 AM |
2190 | /* Small local sym to section mapping cache. */ |
2191 | struct sym_sec_cache sym_sec; | |
3376eaf5 KK |
2192 | |
2193 | /* A counter or offset to track a TLS got entry. */ | |
2194 | union | |
2195 | { | |
2196 | bfd_signed_vma refcount; | |
2197 | bfd_vma offset; | |
2198 | } tls_ldm_got; | |
55e6e397 RS |
2199 | |
2200 | /* The type of PLT to use. */ | |
2201 | const struct elf_sh_plt_info *plt_info; | |
2202 | ||
2203 | /* True if the target system is VxWorks. */ | |
2204 | bfd_boolean vxworks_p; | |
067653c5 | 2205 | }; |
37c644f2 AO |
2206 | |
2207 | /* Traverse an sh ELF linker hash table. */ | |
2208 | ||
2209 | #define sh_elf_link_hash_traverse(table, func, info) \ | |
2210 | (elf_link_hash_traverse \ | |
2211 | (&(table)->root, \ | |
09fd220b | 2212 | (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \ |
37c644f2 AO |
2213 | (info))) |
2214 | ||
2215 | /* Get the sh ELF linker hash table from a link_info structure. */ | |
2216 | ||
2217 | #define sh_elf_hash_table(p) \ | |
2218 | ((struct elf_sh_link_hash_table *) ((p)->hash)) | |
2219 | ||
2220 | /* Create an entry in an sh ELF linker hash table. */ | |
2221 | ||
2222 | static struct bfd_hash_entry * | |
09fd220b KK |
2223 | sh_elf_link_hash_newfunc (struct bfd_hash_entry *entry, |
2224 | struct bfd_hash_table *table, | |
2225 | const char *string) | |
37c644f2 AO |
2226 | { |
2227 | struct elf_sh_link_hash_entry *ret = | |
2228 | (struct elf_sh_link_hash_entry *) entry; | |
2229 | ||
2230 | /* Allocate the structure if it has not already been allocated by a | |
2231 | subclass. */ | |
2232 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2233 | ret = ((struct elf_sh_link_hash_entry *) | |
2234 | bfd_hash_allocate (table, | |
2235 | sizeof (struct elf_sh_link_hash_entry))); | |
2236 | if (ret == (struct elf_sh_link_hash_entry *) NULL) | |
2237 | return (struct bfd_hash_entry *) ret; | |
2238 | ||
2239 | /* Call the allocation method of the superclass. */ | |
2240 | ret = ((struct elf_sh_link_hash_entry *) | |
2241 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
2242 | table, string)); | |
2243 | if (ret != (struct elf_sh_link_hash_entry *) NULL) | |
2244 | { | |
396a6083 SC |
2245 | ret->dyn_relocs = NULL; |
2246 | ret->gotplt_refcount = 0; | |
fbca6ad9 | 2247 | #ifdef INCLUDE_SHMEDIA |
396a6083 | 2248 | ret->datalabel_got.refcount = ret->root.got.refcount; |
fbca6ad9 | 2249 | #endif |
3376eaf5 | 2250 | ret->tls_type = GOT_UNKNOWN; |
37c644f2 AO |
2251 | } |
2252 | ||
2253 | return (struct bfd_hash_entry *) ret; | |
2254 | } | |
2255 | ||
2256 | /* Create an sh ELF linker hash table. */ | |
2257 | ||
2258 | static struct bfd_link_hash_table * | |
09fd220b | 2259 | sh_elf_link_hash_table_create (bfd *abfd) |
37c644f2 AO |
2260 | { |
2261 | struct elf_sh_link_hash_table *ret; | |
dc810e39 | 2262 | bfd_size_type amt = sizeof (struct elf_sh_link_hash_table); |
37c644f2 | 2263 | |
e2d34d7d | 2264 | ret = (struct elf_sh_link_hash_table *) bfd_malloc (amt); |
37c644f2 AO |
2265 | if (ret == (struct elf_sh_link_hash_table *) NULL) |
2266 | return NULL; | |
2267 | ||
66eb6687 AM |
2268 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, |
2269 | sh_elf_link_hash_newfunc, | |
2270 | sizeof (struct elf_sh_link_hash_entry))) | |
37c644f2 | 2271 | { |
e2d34d7d | 2272 | free (ret); |
37c644f2 AO |
2273 | return NULL; |
2274 | } | |
2275 | ||
067653c5 AM |
2276 | ret->sgot = NULL; |
2277 | ret->sgotplt = NULL; | |
2278 | ret->srelgot = NULL; | |
2279 | ret->splt = NULL; | |
2280 | ret->srelplt = NULL; | |
2281 | ret->sdynbss = NULL; | |
2282 | ret->srelbss = NULL; | |
55e6e397 | 2283 | ret->srelplt2 = NULL; |
067653c5 | 2284 | ret->sym_sec.abfd = NULL; |
3376eaf5 | 2285 | ret->tls_ldm_got.refcount = 0; |
55e6e397 RS |
2286 | ret->plt_info = NULL; |
2287 | ret->vxworks_p = vxworks_object_p (abfd); | |
067653c5 | 2288 | |
37c644f2 AO |
2289 | return &ret->root.root; |
2290 | } | |
2291 | ||
067653c5 AM |
2292 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up |
2293 | shortcuts to them in our hash table. */ | |
2294 | ||
b34976b6 | 2295 | static bfd_boolean |
09fd220b | 2296 | create_got_section (bfd *dynobj, struct bfd_link_info *info) |
067653c5 AM |
2297 | { |
2298 | struct elf_sh_link_hash_table *htab; | |
2299 | ||
2300 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
b34976b6 | 2301 | return FALSE; |
067653c5 AM |
2302 | |
2303 | htab = sh_elf_hash_table (info); | |
2304 | htab->sgot = bfd_get_section_by_name (dynobj, ".got"); | |
2305 | htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
2306 | if (! htab->sgot || ! htab->sgotplt) | |
2307 | abort (); | |
2308 | ||
3496cb2a L |
2309 | htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got", |
2310 | (SEC_ALLOC | SEC_LOAD | |
2311 | | SEC_HAS_CONTENTS | |
2312 | | SEC_IN_MEMORY | |
2313 | | SEC_LINKER_CREATED | |
2314 | | SEC_READONLY)); | |
067653c5 | 2315 | if (htab->srelgot == NULL |
067653c5 | 2316 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) |
b34976b6 AM |
2317 | return FALSE; |
2318 | return TRUE; | |
067653c5 AM |
2319 | } |
2320 | ||
37c644f2 AO |
2321 | /* Create dynamic sections when linking against a dynamic object. */ |
2322 | ||
b34976b6 | 2323 | static bfd_boolean |
09fd220b | 2324 | sh_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
37c644f2 | 2325 | { |
067653c5 | 2326 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
2327 | flagword flags, pltflags; |
2328 | register asection *s; | |
9c5bfbb7 | 2329 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); |
37c644f2 AO |
2330 | int ptralign = 0; |
2331 | ||
2332 | switch (bed->s->arch_size) | |
2333 | { | |
2334 | case 32: | |
2335 | ptralign = 2; | |
2336 | break; | |
2337 | ||
2338 | case 64: | |
2339 | ptralign = 3; | |
2340 | break; | |
2341 | ||
2342 | default: | |
2343 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 2344 | return FALSE; |
37c644f2 AO |
2345 | } |
2346 | ||
067653c5 | 2347 | htab = sh_elf_hash_table (info); |
35cad4c4 KK |
2348 | if (htab->root.dynamic_sections_created) |
2349 | return TRUE; | |
067653c5 | 2350 | |
37c644f2 AO |
2351 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and |
2352 | .rel[a].bss sections. */ | |
2353 | ||
2354 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
2355 | | SEC_LINKER_CREATED); | |
2356 | ||
2357 | pltflags = flags; | |
2358 | pltflags |= SEC_CODE; | |
2359 | if (bed->plt_not_loaded) | |
2360 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
2361 | if (bed->plt_readonly) | |
2362 | pltflags |= SEC_READONLY; | |
2363 | ||
3496cb2a | 2364 | s = bfd_make_section_with_flags (abfd, ".plt", pltflags); |
35cad4c4 KK |
2365 | htab->splt = s; |
2366 | if (s == NULL | |
35cad4c4 KK |
2367 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) |
2368 | return FALSE; | |
37c644f2 AO |
2369 | |
2370 | if (bed->want_plt_sym) | |
2371 | { | |
2372 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
2373 | .plt section. */ | |
14a793b2 AM |
2374 | struct elf_link_hash_entry *h; |
2375 | struct bfd_link_hash_entry *bh = NULL; | |
2376 | ||
37c644f2 AO |
2377 | if (! (_bfd_generic_link_add_one_symbol |
2378 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, | |
b34976b6 | 2379 | (bfd_vma) 0, (const char *) NULL, FALSE, |
14a793b2 | 2380 | get_elf_backend_data (abfd)->collect, &bh))) |
b34976b6 | 2381 | return FALSE; |
14a793b2 AM |
2382 | |
2383 | h = (struct elf_link_hash_entry *) bh; | |
f5385ebf | 2384 | h->def_regular = 1; |
37c644f2 | 2385 | h->type = STT_OBJECT; |
7325306f | 2386 | htab->root.hplt = h; |
37c644f2 AO |
2387 | |
2388 | if (info->shared | |
c152c796 | 2389 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2390 | return FALSE; |
37c644f2 AO |
2391 | } |
2392 | ||
3496cb2a L |
2393 | s = bfd_make_section_with_flags (abfd, |
2394 | bed->default_use_rela_p ? ".rela.plt" : ".rel.plt", | |
2395 | flags | SEC_READONLY); | |
35cad4c4 KK |
2396 | htab->srelplt = s; |
2397 | if (s == NULL | |
35cad4c4 KK |
2398 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
2399 | return FALSE; | |
37c644f2 | 2400 | |
2293c499 AM |
2401 | if (htab->sgot == NULL |
2402 | && !create_got_section (abfd, info)) | |
b34976b6 | 2403 | return FALSE; |
37c644f2 AO |
2404 | |
2405 | { | |
2406 | const char *secname; | |
2407 | char *relname; | |
2408 | flagword secflags; | |
2409 | asection *sec; | |
2410 | ||
2411 | for (sec = abfd->sections; sec; sec = sec->next) | |
2412 | { | |
2413 | secflags = bfd_get_section_flags (abfd, sec); | |
2414 | if ((secflags & (SEC_DATA | SEC_LINKER_CREATED)) | |
2415 | || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS)) | |
2416 | continue; | |
2417 | secname = bfd_get_section_name (abfd, sec); | |
dc810e39 | 2418 | relname = (char *) bfd_malloc ((bfd_size_type) strlen (secname) + 6); |
37c644f2 AO |
2419 | strcpy (relname, ".rela"); |
2420 | strcat (relname, secname); | |
03151a5a KK |
2421 | if (bfd_get_section_by_name (abfd, secname)) |
2422 | continue; | |
3496cb2a L |
2423 | s = bfd_make_section_with_flags (abfd, relname, |
2424 | flags | SEC_READONLY); | |
37c644f2 | 2425 | if (s == NULL |
37c644f2 | 2426 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
b34976b6 | 2427 | return FALSE; |
37c644f2 AO |
2428 | } |
2429 | } | |
2430 | ||
2431 | if (bed->want_dynbss) | |
2432 | { | |
2433 | /* The .dynbss section is a place to put symbols which are defined | |
2434 | by dynamic objects, are referenced by regular objects, and are | |
2435 | not functions. We must allocate space for them in the process | |
2436 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2437 | initialize them at run time. The linker script puts the .dynbss | |
2438 | section into the .bss section of the final image. */ | |
3496cb2a L |
2439 | s = bfd_make_section_with_flags (abfd, ".dynbss", |
2440 | SEC_ALLOC | SEC_LINKER_CREATED); | |
35cad4c4 | 2441 | htab->sdynbss = s; |
3496cb2a | 2442 | if (s == NULL) |
35cad4c4 | 2443 | return FALSE; |
37c644f2 AO |
2444 | |
2445 | /* The .rel[a].bss section holds copy relocs. This section is not | |
2446 | normally needed. We need to create it here, though, so that the | |
2447 | linker will map it to an output section. We can't just create it | |
2448 | only if we need it, because we will not know whether we need it | |
2449 | until we have seen all the input files, and the first time the | |
2450 | main linker code calls BFD after examining all the input files | |
2451 | (size_dynamic_sections) the input sections have already been | |
2452 | mapped to the output sections. If the section turns out not to | |
2453 | be needed, we can discard it later. We will never need this | |
2454 | section when generating a shared object, since they do not use | |
2455 | copy relocs. */ | |
35cad4c4 | 2456 | if (! info->shared) |
37c644f2 | 2457 | { |
3496cb2a L |
2458 | s = bfd_make_section_with_flags (abfd, |
2459 | (bed->default_use_rela_p | |
2460 | ? ".rela.bss" : ".rel.bss"), | |
2461 | flags | SEC_READONLY); | |
067653c5 | 2462 | htab->srelbss = s; |
37c644f2 | 2463 | if (s == NULL |
37c644f2 | 2464 | || ! bfd_set_section_alignment (abfd, s, ptralign)) |
b34976b6 | 2465 | return FALSE; |
37c644f2 AO |
2466 | } |
2467 | } | |
2468 | ||
55e6e397 RS |
2469 | if (htab->vxworks_p) |
2470 | { | |
2471 | if (!elf_vxworks_create_dynamic_sections (abfd, info, &htab->srelplt2)) | |
2472 | return FALSE; | |
2473 | } | |
2474 | ||
b34976b6 | 2475 | return TRUE; |
37c644f2 AO |
2476 | } |
2477 | \f | |
37c644f2 AO |
2478 | /* Adjust a symbol defined by a dynamic object and referenced by a |
2479 | regular object. The current definition is in some section of the | |
2480 | dynamic object, but we're not including those sections. We have to | |
2481 | change the definition to something the rest of the link can | |
2482 | understand. */ | |
2483 | ||
b34976b6 | 2484 | static bfd_boolean |
09fd220b KK |
2485 | sh_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
2486 | struct elf_link_hash_entry *h) | |
37c644f2 | 2487 | { |
067653c5 AM |
2488 | struct elf_sh_link_hash_table *htab; |
2489 | struct elf_sh_link_hash_entry *eh; | |
2490 | struct elf_sh_dyn_relocs *p; | |
37c644f2 | 2491 | asection *s; |
37c644f2 | 2492 | |
2293c499 | 2493 | htab = sh_elf_hash_table (info); |
37c644f2 AO |
2494 | |
2495 | /* Make sure we know what is going on here. */ | |
2293c499 | 2496 | BFD_ASSERT (htab->root.dynobj != NULL |
f5385ebf | 2497 | && (h->needs_plt |
f6e332e6 | 2498 | || h->u.weakdef != NULL |
f5385ebf AM |
2499 | || (h->def_dynamic |
2500 | && h->ref_regular | |
2501 | && !h->def_regular))); | |
37c644f2 AO |
2502 | |
2503 | /* If this is a function, put it in the procedure linkage table. We | |
2504 | will fill in the contents of the procedure linkage table later, | |
2505 | when we know the address of the .got section. */ | |
2506 | if (h->type == STT_FUNC | |
f5385ebf | 2507 | || h->needs_plt) |
37c644f2 | 2508 | { |
067653c5 | 2509 | if (h->plt.refcount <= 0 |
3d85aebe KK |
2510 | || SYMBOL_CALLS_LOCAL (info, h) |
2511 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2512 | && h->root.type == bfd_link_hash_undefweak)) | |
37c644f2 AO |
2513 | { |
2514 | /* This case can occur if we saw a PLT reloc in an input | |
2515 | file, but the symbol was never referred to by a dynamic | |
2516 | object. In such a case, we don't actually need to build | |
2517 | a procedure linkage table, and we can just do a REL32 | |
2518 | reloc instead. */ | |
067653c5 | 2519 | h->plt.offset = (bfd_vma) -1; |
f5385ebf | 2520 | h->needs_plt = 0; |
37c644f2 AO |
2521 | } |
2522 | ||
b34976b6 | 2523 | return TRUE; |
37c644f2 | 2524 | } |
067653c5 AM |
2525 | else |
2526 | h->plt.offset = (bfd_vma) -1; | |
37c644f2 AO |
2527 | |
2528 | /* If this is a weak symbol, and there is a real definition, the | |
2529 | processor independent code will have arranged for us to see the | |
2530 | real definition first, and we can just use the same value. */ | |
f6e332e6 | 2531 | if (h->u.weakdef != NULL) |
37c644f2 | 2532 | { |
f6e332e6 AM |
2533 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
2534 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2535 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2536 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
04e534c3 | 2537 | if (info->nocopyreloc) |
f6e332e6 | 2538 | h->non_got_ref = h->u.weakdef->non_got_ref; |
b34976b6 | 2539 | return TRUE; |
37c644f2 AO |
2540 | } |
2541 | ||
2542 | /* This is a reference to a symbol defined by a dynamic object which | |
2543 | is not a function. */ | |
2544 | ||
2545 | /* If we are creating a shared library, we must presume that the | |
2546 | only references to the symbol are via the global offset table. | |
2547 | For such cases we need not do anything here; the relocations will | |
2548 | be handled correctly by relocate_section. */ | |
2549 | if (info->shared) | |
b34976b6 | 2550 | return TRUE; |
37c644f2 AO |
2551 | |
2552 | /* If there are no references to this symbol that do not use the | |
2553 | GOT, we don't need to generate a copy reloc. */ | |
f5385ebf | 2554 | if (!h->non_got_ref) |
b34976b6 | 2555 | return TRUE; |
37c644f2 | 2556 | |
067653c5 AM |
2557 | /* If -z nocopyreloc was given, we won't generate them either. */ |
2558 | if (info->nocopyreloc) | |
2559 | { | |
f5385ebf | 2560 | h->non_got_ref = 0; |
b34976b6 | 2561 | return TRUE; |
067653c5 AM |
2562 | } |
2563 | ||
2564 | eh = (struct elf_sh_link_hash_entry *) h; | |
2565 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2566 | { | |
2567 | s = p->sec->output_section; | |
2568 | if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) | |
2569 | break; | |
2570 | } | |
2571 | ||
2572 | /* If we didn't find any dynamic relocs in sections which needs the | |
2573 | copy reloc, then we'll be keeping the dynamic relocs and avoiding | |
2574 | the copy reloc. */ | |
2575 | if (p == NULL) | |
2576 | { | |
f5385ebf | 2577 | h->non_got_ref = 0; |
b34976b6 | 2578 | return TRUE; |
067653c5 AM |
2579 | } |
2580 | ||
909272ee AM |
2581 | if (h->size == 0) |
2582 | { | |
2583 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
2584 | h->root.root.string); | |
2585 | return TRUE; | |
2586 | } | |
2587 | ||
37c644f2 AO |
2588 | /* We must allocate the symbol in our .dynbss section, which will |
2589 | become part of the .bss section of the executable. There will be | |
2590 | an entry for this symbol in the .dynsym section. The dynamic | |
2591 | object will contain position independent code, so all references | |
2592 | from the dynamic object to this symbol will go through the global | |
2593 | offset table. The dynamic linker will use the .dynsym entry to | |
2594 | determine the address it must put in the global offset table, so | |
2595 | both the dynamic object and the regular object will refer to the | |
2596 | same memory location for the variable. */ | |
2597 | ||
067653c5 | 2598 | s = htab->sdynbss; |
37c644f2 AO |
2599 | BFD_ASSERT (s != NULL); |
2600 | ||
2601 | /* We must generate a R_SH_COPY reloc to tell the dynamic linker to | |
2602 | copy the initial value out of the dynamic object and into the | |
2603 | runtime process image. We need to remember the offset into the | |
2604 | .rela.bss section we are going to use. */ | |
2605 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
2606 | { | |
2607 | asection *srel; | |
2608 | ||
067653c5 | 2609 | srel = htab->srelbss; |
37c644f2 | 2610 | BFD_ASSERT (srel != NULL); |
eea6121a | 2611 | srel->size += sizeof (Elf32_External_Rela); |
f5385ebf | 2612 | h->needs_copy = 1; |
37c644f2 AO |
2613 | } |
2614 | ||
027297b7 | 2615 | return _bfd_elf_adjust_dynamic_copy (h, s); |
37c644f2 AO |
2616 | } |
2617 | ||
067653c5 AM |
2618 | /* Allocate space in .plt, .got and associated reloc sections for |
2619 | dynamic relocs. */ | |
2620 | ||
b34976b6 | 2621 | static bfd_boolean |
09fd220b | 2622 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
067653c5 AM |
2623 | { |
2624 | struct bfd_link_info *info; | |
2625 | struct elf_sh_link_hash_table *htab; | |
2626 | struct elf_sh_link_hash_entry *eh; | |
2627 | struct elf_sh_dyn_relocs *p; | |
2628 | ||
2629 | if (h->root.type == bfd_link_hash_indirect) | |
b34976b6 | 2630 | return TRUE; |
067653c5 AM |
2631 | |
2632 | if (h->root.type == bfd_link_hash_warning) | |
2633 | /* When warning symbols are created, they **replace** the "real" | |
2634 | entry in the hash table, thus we never get to see the real | |
2635 | symbol in a hash traversal. So look at it now. */ | |
2636 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2637 | ||
2638 | info = (struct bfd_link_info *) inf; | |
2639 | htab = sh_elf_hash_table (info); | |
2640 | ||
4989d792 SC |
2641 | eh = (struct elf_sh_link_hash_entry *) h; |
2642 | if ((h->got.refcount > 0 | |
f5385ebf | 2643 | || h->forced_local) |
4989d792 SC |
2644 | && eh->gotplt_refcount > 0) |
2645 | { | |
2646 | /* The symbol has been forced local, or we have some direct got refs, | |
26e41594 | 2647 | so treat all the gotplt refs as got refs. */ |
4989d792 SC |
2648 | h->got.refcount += eh->gotplt_refcount; |
2649 | if (h->plt.refcount >= eh->gotplt_refcount) | |
2650 | h->plt.refcount -= eh->gotplt_refcount; | |
2651 | } | |
2652 | ||
067653c5 | 2653 | if (htab->root.dynamic_sections_created |
04e534c3 KK |
2654 | && h->plt.refcount > 0 |
2655 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
2656 | || h->root.type != bfd_link_hash_undefweak)) | |
067653c5 AM |
2657 | { |
2658 | /* Make sure this symbol is output as a dynamic symbol. | |
2659 | Undefined weak syms won't yet be marked as dynamic. */ | |
2660 | if (h->dynindx == -1 | |
f5385ebf | 2661 | && !h->forced_local) |
067653c5 | 2662 | { |
c152c796 | 2663 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2664 | return FALSE; |
067653c5 AM |
2665 | } |
2666 | ||
267fb3c1 KK |
2667 | if (info->shared |
2668 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h)) | |
067653c5 AM |
2669 | { |
2670 | asection *s = htab->splt; | |
2671 | ||
2672 | /* If this is the first .plt entry, make room for the special | |
2673 | first entry. */ | |
eea6121a | 2674 | if (s->size == 0) |
55e6e397 | 2675 | s->size += htab->plt_info->plt0_entry_size; |
067653c5 | 2676 | |
eea6121a | 2677 | h->plt.offset = s->size; |
067653c5 AM |
2678 | |
2679 | /* If this symbol is not defined in a regular file, and we are | |
2680 | not generating a shared library, then set the symbol to this | |
2681 | location in the .plt. This is required to make function | |
2682 | pointers compare as equal between the normal executable and | |
2683 | the shared library. */ | |
2684 | if (! info->shared | |
f5385ebf | 2685 | && !h->def_regular) |
067653c5 AM |
2686 | { |
2687 | h->root.u.def.section = s; | |
2688 | h->root.u.def.value = h->plt.offset; | |
2689 | } | |
2690 | ||
2691 | /* Make room for this entry. */ | |
55e6e397 | 2692 | s->size += htab->plt_info->symbol_entry_size; |
067653c5 AM |
2693 | |
2694 | /* We also need to make an entry in the .got.plt section, which | |
2695 | will be placed in the .got section by the linker script. */ | |
eea6121a | 2696 | htab->sgotplt->size += 4; |
067653c5 AM |
2697 | |
2698 | /* We also need to make an entry in the .rel.plt section. */ | |
eea6121a | 2699 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
55e6e397 RS |
2700 | |
2701 | if (htab->vxworks_p && !info->shared) | |
2702 | { | |
2703 | /* VxWorks executables have a second set of relocations | |
2704 | for each PLT entry. They go in a separate relocation | |
2705 | section, which is processed by the kernel loader. */ | |
2706 | ||
2707 | /* There is a relocation for the initial PLT entry: | |
2708 | an R_SH_DIR32 relocation for _GLOBAL_OFFSET_TABLE_. */ | |
2709 | if (h->plt.offset == htab->plt_info->plt0_entry_size) | |
2710 | htab->srelplt2->size += sizeof (Elf32_External_Rela); | |
2711 | ||
2712 | /* There are two extra relocations for each subsequent | |
2713 | PLT entry: an R_SH_DIR32 relocation for the GOT entry, | |
2714 | and an R_SH_DIR32 relocation for the PLT entry. */ | |
2715 | htab->srelplt2->size += sizeof (Elf32_External_Rela) * 2; | |
2716 | } | |
067653c5 AM |
2717 | } |
2718 | else | |
2719 | { | |
2720 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2721 | h->needs_plt = 0; |
067653c5 AM |
2722 | } |
2723 | } | |
2724 | else | |
2725 | { | |
2726 | h->plt.offset = (bfd_vma) -1; | |
f5385ebf | 2727 | h->needs_plt = 0; |
067653c5 AM |
2728 | } |
2729 | ||
2730 | if (h->got.refcount > 0) | |
2731 | { | |
2732 | asection *s; | |
b34976b6 | 2733 | bfd_boolean dyn; |
3376eaf5 | 2734 | int tls_type = sh_elf_hash_entry (h)->tls_type; |
067653c5 AM |
2735 | |
2736 | /* Make sure this symbol is output as a dynamic symbol. | |
2737 | Undefined weak syms won't yet be marked as dynamic. */ | |
2738 | if (h->dynindx == -1 | |
f5385ebf | 2739 | && !h->forced_local) |
067653c5 | 2740 | { |
c152c796 | 2741 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2742 | return FALSE; |
067653c5 AM |
2743 | } |
2744 | ||
2745 | s = htab->sgot; | |
eea6121a AM |
2746 | h->got.offset = s->size; |
2747 | s->size += 4; | |
3376eaf5 KK |
2748 | /* R_SH_TLS_GD needs 2 consecutive GOT slots. */ |
2749 | if (tls_type == GOT_TLS_GD) | |
eea6121a | 2750 | s->size += 4; |
067653c5 | 2751 | dyn = htab->root.dynamic_sections_created; |
267fb3c1 | 2752 | /* R_SH_TLS_IE_32 needs one dynamic relocation if dynamic, |
3376eaf5 KK |
2753 | R_SH_TLS_GD needs one if local symbol and two if global. */ |
2754 | if ((tls_type == GOT_TLS_GD && h->dynindx == -1) | |
267fb3c1 | 2755 | || (tls_type == GOT_TLS_IE && dyn)) |
eea6121a | 2756 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
3376eaf5 | 2757 | else if (tls_type == GOT_TLS_GD) |
eea6121a | 2758 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); |
04e534c3 KK |
2759 | else if ((ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
2760 | || h->root.type != bfd_link_hash_undefweak) | |
2761 | && (info->shared | |
2762 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h))) | |
eea6121a | 2763 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
067653c5 AM |
2764 | } |
2765 | else | |
2766 | h->got.offset = (bfd_vma) -1; | |
2767 | ||
396a6083 SC |
2768 | #ifdef INCLUDE_SHMEDIA |
2769 | if (eh->datalabel_got.refcount > 0) | |
2770 | { | |
2771 | asection *s; | |
b34976b6 | 2772 | bfd_boolean dyn; |
396a6083 SC |
2773 | |
2774 | /* Make sure this symbol is output as a dynamic symbol. | |
2775 | Undefined weak syms won't yet be marked as dynamic. */ | |
2776 | if (h->dynindx == -1 | |
f5385ebf | 2777 | && !h->forced_local) |
396a6083 | 2778 | { |
c152c796 | 2779 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2780 | return FALSE; |
396a6083 SC |
2781 | } |
2782 | ||
2783 | s = htab->sgot; | |
eea6121a AM |
2784 | eh->datalabel_got.offset = s->size; |
2785 | s->size += 4; | |
396a6083 | 2786 | dyn = htab->root.dynamic_sections_created; |
267fb3c1 | 2787 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)) |
eea6121a | 2788 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
396a6083 SC |
2789 | } |
2790 | else | |
2791 | eh->datalabel_got.offset = (bfd_vma) -1; | |
2792 | #endif | |
2793 | ||
067653c5 | 2794 | if (eh->dyn_relocs == NULL) |
b34976b6 | 2795 | return TRUE; |
067653c5 AM |
2796 | |
2797 | /* In the shared -Bsymbolic case, discard space allocated for | |
2798 | dynamic pc-relative relocs against symbols which turn out to be | |
2799 | defined in regular objects. For the normal shared case, discard | |
2800 | space for pc-relative relocs that have become local due to symbol | |
2801 | visibility changes. */ | |
2802 | ||
2803 | if (info->shared) | |
2804 | { | |
3d85aebe | 2805 | if (SYMBOL_CALLS_LOCAL (info, h)) |
067653c5 AM |
2806 | { |
2807 | struct elf_sh_dyn_relocs **pp; | |
2808 | ||
2809 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2810 | { | |
2811 | p->count -= p->pc_count; | |
2812 | p->pc_count = 0; | |
2813 | if (p->count == 0) | |
2814 | *pp = p->next; | |
2815 | else | |
2816 | pp = &p->next; | |
2817 | } | |
2818 | } | |
04e534c3 KK |
2819 | |
2820 | /* Also discard relocs on undefined weak syms with non-default | |
2821 | visibility. */ | |
22d606e9 | 2822 | if (eh->dyn_relocs != NULL |
04e534c3 | 2823 | && h->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
2824 | { |
2825 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2826 | eh->dyn_relocs = NULL; | |
2827 | ||
2828 | /* Make sure undefined weak symbols are output as a dynamic | |
2829 | symbol in PIEs. */ | |
2830 | else if (h->dynindx == -1 | |
2831 | && !h->forced_local) | |
2832 | { | |
2833 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2834 | return FALSE; | |
2835 | } | |
2836 | } | |
067653c5 AM |
2837 | } |
2838 | else | |
2839 | { | |
2840 | /* For the non-shared case, discard space for relocs against | |
2841 | symbols which turn out to need copy relocs or are not | |
2842 | dynamic. */ | |
2843 | ||
f5385ebf AM |
2844 | if (!h->non_got_ref |
2845 | && ((h->def_dynamic | |
2846 | && !h->def_regular) | |
067653c5 AM |
2847 | || (htab->root.dynamic_sections_created |
2848 | && (h->root.type == bfd_link_hash_undefweak | |
2849 | || h->root.type == bfd_link_hash_undefined)))) | |
2850 | { | |
2851 | /* Make sure this symbol is output as a dynamic symbol. | |
2852 | Undefined weak syms won't yet be marked as dynamic. */ | |
2853 | if (h->dynindx == -1 | |
f5385ebf | 2854 | && !h->forced_local) |
067653c5 | 2855 | { |
c152c796 | 2856 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2857 | return FALSE; |
067653c5 AM |
2858 | } |
2859 | ||
2860 | /* If that succeeded, we know we'll be keeping all the | |
2861 | relocs. */ | |
2862 | if (h->dynindx != -1) | |
2863 | goto keep; | |
2864 | } | |
2865 | ||
2866 | eh->dyn_relocs = NULL; | |
2867 | ||
2868 | keep: ; | |
2869 | } | |
2870 | ||
2871 | /* Finally, allocate space. */ | |
2872 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2873 | { | |
2874 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2875 | sreloc->size += p->count * sizeof (Elf32_External_Rela); |
067653c5 AM |
2876 | } |
2877 | ||
b34976b6 | 2878 | return TRUE; |
067653c5 AM |
2879 | } |
2880 | ||
2881 | /* Find any dynamic relocs that apply to read-only sections. */ | |
2882 | ||
b34976b6 | 2883 | static bfd_boolean |
09fd220b | 2884 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
067653c5 AM |
2885 | { |
2886 | struct elf_sh_link_hash_entry *eh; | |
2887 | struct elf_sh_dyn_relocs *p; | |
2888 | ||
2889 | if (h->root.type == bfd_link_hash_warning) | |
2890 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2891 | ||
2892 | eh = (struct elf_sh_link_hash_entry *) h; | |
2893 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2894 | { | |
2895 | asection *s = p->sec->output_section; | |
2896 | ||
2897 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2898 | { | |
2899 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2900 | ||
2901 | info->flags |= DF_TEXTREL; | |
2902 | ||
2903 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 2904 | return FALSE; |
067653c5 AM |
2905 | } |
2906 | } | |
b34976b6 | 2907 | return TRUE; |
067653c5 AM |
2908 | } |
2909 | ||
55e6e397 RS |
2910 | /* This function is called after all the input files have been read, |
2911 | and the input sections have been assigned to output sections. | |
2912 | It's a convenient place to determine the PLT style. */ | |
2913 | ||
2914 | static bfd_boolean | |
2915 | sh_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) | |
2916 | { | |
2917 | sh_elf_hash_table (info)->plt_info = get_plt_info (output_bfd, info->shared); | |
2918 | return TRUE; | |
2919 | } | |
2920 | ||
37c644f2 AO |
2921 | /* Set the sizes of the dynamic sections. */ |
2922 | ||
b34976b6 | 2923 | static bfd_boolean |
09fd220b KK |
2924 | sh_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2925 | struct bfd_link_info *info) | |
37c644f2 | 2926 | { |
067653c5 | 2927 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
2928 | bfd *dynobj; |
2929 | asection *s; | |
b34976b6 | 2930 | bfd_boolean relocs; |
067653c5 | 2931 | bfd *ibfd; |
37c644f2 | 2932 | |
067653c5 AM |
2933 | htab = sh_elf_hash_table (info); |
2934 | dynobj = htab->root.dynobj; | |
37c644f2 AO |
2935 | BFD_ASSERT (dynobj != NULL); |
2936 | ||
067653c5 | 2937 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
2938 | { |
2939 | /* Set the contents of the .interp section to the interpreter. */ | |
2558b9a9 | 2940 | if (info->executable) |
37c644f2 AO |
2941 | { |
2942 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2943 | BFD_ASSERT (s != NULL); | |
eea6121a | 2944 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
37c644f2 AO |
2945 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
2946 | } | |
2947 | } | |
37c644f2 | 2948 | |
067653c5 AM |
2949 | /* Set up .got offsets for local syms, and space for local dynamic |
2950 | relocs. */ | |
2951 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
37c644f2 | 2952 | { |
067653c5 AM |
2953 | bfd_signed_vma *local_got; |
2954 | bfd_signed_vma *end_local_got; | |
3376eaf5 | 2955 | char *local_tls_type; |
067653c5 AM |
2956 | bfd_size_type locsymcount; |
2957 | Elf_Internal_Shdr *symtab_hdr; | |
2958 | asection *srel; | |
37c644f2 | 2959 | |
0ffa91dd | 2960 | if (! is_sh_elf (ibfd)) |
37c644f2 AO |
2961 | continue; |
2962 | ||
067653c5 | 2963 | for (s = ibfd->sections; s != NULL; s = s->next) |
37c644f2 | 2964 | { |
067653c5 AM |
2965 | struct elf_sh_dyn_relocs *p; |
2966 | ||
2967 | for (p = ((struct elf_sh_dyn_relocs *) | |
2968 | elf_section_data (s)->local_dynrel); | |
2969 | p != NULL; | |
2970 | p = p->next) | |
37c644f2 | 2971 | { |
067653c5 AM |
2972 | if (! bfd_is_abs_section (p->sec) |
2973 | && bfd_is_abs_section (p->sec->output_section)) | |
2974 | { | |
2975 | /* Input section has been discarded, either because | |
2976 | it is a copy of a linkonce section or due to | |
2977 | linker script /DISCARD/, so we'll be discarding | |
2978 | the relocs too. */ | |
2979 | } | |
2980 | else if (p->count != 0) | |
2981 | { | |
2982 | srel = elf_section_data (p->sec)->sreloc; | |
eea6121a | 2983 | srel->size += p->count * sizeof (Elf32_External_Rela); |
067653c5 AM |
2984 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2985 | info->flags |= DF_TEXTREL; | |
2986 | } | |
37c644f2 AO |
2987 | } |
2988 | } | |
067653c5 AM |
2989 | |
2990 | local_got = elf_local_got_refcounts (ibfd); | |
2991 | if (!local_got) | |
2992 | continue; | |
2993 | ||
0ffa91dd | 2994 | symtab_hdr = &elf_symtab_hdr (ibfd); |
067653c5 AM |
2995 | locsymcount = symtab_hdr->sh_info; |
2996 | #ifdef INCLUDE_SHMEDIA | |
2997 | /* Count datalabel local GOT. */ | |
2998 | locsymcount *= 2; | |
2999 | #endif | |
3000 | end_local_got = local_got + locsymcount; | |
3376eaf5 | 3001 | local_tls_type = sh_elf_local_got_tls_type (ibfd); |
067653c5 AM |
3002 | s = htab->sgot; |
3003 | srel = htab->srelgot; | |
3004 | for (; local_got < end_local_got; ++local_got) | |
37c644f2 | 3005 | { |
067653c5 | 3006 | if (*local_got > 0) |
37c644f2 | 3007 | { |
eea6121a AM |
3008 | *local_got = s->size; |
3009 | s->size += 4; | |
3376eaf5 | 3010 | if (*local_tls_type == GOT_TLS_GD) |
eea6121a | 3011 | s->size += 4; |
067653c5 | 3012 | if (info->shared) |
eea6121a | 3013 | srel->size += sizeof (Elf32_External_Rela); |
37c644f2 AO |
3014 | } |
3015 | else | |
067653c5 | 3016 | *local_got = (bfd_vma) -1; |
3376eaf5 | 3017 | ++local_tls_type; |
37c644f2 | 3018 | } |
067653c5 AM |
3019 | } |
3020 | ||
3376eaf5 KK |
3021 | if (htab->tls_ldm_got.refcount > 0) |
3022 | { | |
3023 | /* Allocate 2 got entries and 1 dynamic reloc for R_SH_TLS_LD_32 | |
3024 | relocs. */ | |
eea6121a AM |
3025 | htab->tls_ldm_got.offset = htab->sgot->size; |
3026 | htab->sgot->size += 8; | |
3027 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
3028 | } |
3029 | else | |
3030 | htab->tls_ldm_got.offset = -1; | |
3031 | ||
067653c5 AM |
3032 | /* Allocate global sym .plt and .got entries, and space for global |
3033 | sym dynamic relocs. */ | |
09fd220b | 3034 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); |
067653c5 AM |
3035 | |
3036 | /* We now have determined the sizes of the various dynamic sections. | |
3037 | Allocate memory for them. */ | |
b34976b6 | 3038 | relocs = FALSE; |
067653c5 AM |
3039 | for (s = dynobj->sections; s != NULL; s = s->next) |
3040 | { | |
3041 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3042 | continue; | |
3043 | ||
3044 | if (s == htab->splt | |
3045 | || s == htab->sgot | |
c456f082 AM |
3046 | || s == htab->sgotplt |
3047 | || s == htab->sdynbss) | |
067653c5 AM |
3048 | { |
3049 | /* Strip this section if we don't need it; see the | |
3050 | comment below. */ | |
3051 | } | |
0112cd26 | 3052 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
067653c5 | 3053 | { |
55e6e397 | 3054 | if (s->size != 0 && s != htab->srelplt && s != htab->srelplt2) |
b34976b6 | 3055 | relocs = TRUE; |
067653c5 AM |
3056 | |
3057 | /* We use the reloc_count field as a counter if we need | |
3058 | to copy relocs into the output file. */ | |
3059 | s->reloc_count = 0; | |
3060 | } | |
3061 | else | |
37c644f2 AO |
3062 | { |
3063 | /* It's not one of our sections, so don't allocate space. */ | |
3064 | continue; | |
3065 | } | |
3066 | ||
eea6121a | 3067 | if (s->size == 0) |
37c644f2 | 3068 | { |
067653c5 AM |
3069 | /* If we don't need this section, strip it from the |
3070 | output file. This is mostly to handle .rela.bss and | |
3071 | .rela.plt. We must create both sections in | |
3072 | create_dynamic_sections, because they must be created | |
3073 | before the linker maps input sections to output | |
3074 | sections. The linker does that before | |
3075 | adjust_dynamic_symbol is called, and it is that | |
3076 | function which decides whether anything needs to go | |
3077 | into these sections. */ | |
3078 | ||
8423293d | 3079 | s->flags |= SEC_EXCLUDE; |
37c644f2 AO |
3080 | continue; |
3081 | } | |
3082 | ||
c456f082 AM |
3083 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
3084 | continue; | |
3085 | ||
067653c5 AM |
3086 | /* Allocate memory for the section contents. We use bfd_zalloc |
3087 | here in case unused entries are not reclaimed before the | |
3088 | section's contents are written out. This should not happen, | |
3089 | but this way if it does, we get a R_SH_NONE reloc instead | |
3090 | of garbage. */ | |
eea6121a | 3091 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
067653c5 | 3092 | if (s->contents == NULL) |
b34976b6 | 3093 | return FALSE; |
37c644f2 AO |
3094 | } |
3095 | ||
067653c5 | 3096 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
3097 | { |
3098 | /* Add some entries to the .dynamic section. We fill in the | |
3099 | values later, in sh_elf_finish_dynamic_sections, but we | |
3100 | must add the entries now so that we get the correct size for | |
3101 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3102 | dynamic linker and used by the debugger. */ | |
dc810e39 | 3103 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 3104 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 | 3105 | |
2558b9a9 | 3106 | if (info->executable) |
37c644f2 | 3107 | { |
067653c5 | 3108 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 3109 | return FALSE; |
37c644f2 AO |
3110 | } |
3111 | ||
eea6121a | 3112 | if (htab->splt->size != 0) |
37c644f2 | 3113 | { |
067653c5 AM |
3114 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
3115 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
3116 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3117 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 3118 | return FALSE; |
37c644f2 AO |
3119 | } |
3120 | ||
3121 | if (relocs) | |
3122 | { | |
067653c5 AM |
3123 | if (! add_dynamic_entry (DT_RELA, 0) |
3124 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
3125 | || ! add_dynamic_entry (DT_RELAENT, | |
3126 | sizeof (Elf32_External_Rela))) | |
b34976b6 | 3127 | return FALSE; |
37c644f2 | 3128 | |
067653c5 AM |
3129 | /* If any dynamic relocs apply to a read-only section, |
3130 | then we need a DT_TEXTREL entry. */ | |
3131 | if ((info->flags & DF_TEXTREL) == 0) | |
09fd220b | 3132 | elf_link_hash_traverse (&htab->root, readonly_dynrelocs, info); |
067653c5 AM |
3133 | |
3134 | if ((info->flags & DF_TEXTREL) != 0) | |
3135 | { | |
3136 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 3137 | return FALSE; |
067653c5 | 3138 | } |
37c644f2 | 3139 | } |
7a2b07ff NS |
3140 | if (htab->vxworks_p |
3141 | && !elf_vxworks_add_dynamic_entries (output_bfd, info)) | |
3142 | return FALSE; | |
37c644f2 | 3143 | } |
dc810e39 | 3144 | #undef add_dynamic_entry |
37c644f2 | 3145 | |
b34976b6 | 3146 | return TRUE; |
37c644f2 | 3147 | } |
37c644f2 AO |
3148 | \f |
3149 | /* Relocate an SH ELF section. */ | |
3150 | ||
b34976b6 | 3151 | static bfd_boolean |
09fd220b KK |
3152 | sh_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, |
3153 | bfd *input_bfd, asection *input_section, | |
3154 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
3155 | Elf_Internal_Sym *local_syms, | |
3156 | asection **local_sections) | |
37c644f2 | 3157 | { |
067653c5 | 3158 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
3159 | Elf_Internal_Shdr *symtab_hdr; |
3160 | struct elf_link_hash_entry **sym_hashes; | |
3161 | Elf_Internal_Rela *rel, *relend; | |
3162 | bfd *dynobj; | |
3163 | bfd_vma *local_got_offsets; | |
3164 | asection *sgot; | |
fbca6ad9 | 3165 | asection *sgotplt; |
37c644f2 AO |
3166 | asection *splt; |
3167 | asection *sreloc; | |
3376eaf5 | 3168 | asection *srelgot; |
37c644f2 | 3169 | |
0ffa91dd NC |
3170 | BFD_ASSERT (is_sh_elf (input_bfd)); |
3171 | ||
067653c5 | 3172 | htab = sh_elf_hash_table (info); |
0ffa91dd | 3173 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
37c644f2 | 3174 | sym_hashes = elf_sym_hashes (input_bfd); |
067653c5 | 3175 | dynobj = htab->root.dynobj; |
37c644f2 AO |
3176 | local_got_offsets = elf_local_got_offsets (input_bfd); |
3177 | ||
067653c5 AM |
3178 | sgot = htab->sgot; |
3179 | sgotplt = htab->sgotplt; | |
3180 | splt = htab->splt; | |
37c644f2 | 3181 | sreloc = NULL; |
3376eaf5 | 3182 | srelgot = NULL; |
37c644f2 AO |
3183 | |
3184 | rel = relocs; | |
3185 | relend = relocs + input_section->reloc_count; | |
3186 | for (; rel < relend; rel++) | |
3187 | { | |
3188 | int r_type; | |
3189 | reloc_howto_type *howto; | |
3190 | unsigned long r_symndx; | |
3191 | Elf_Internal_Sym *sym; | |
3192 | asection *sec; | |
3193 | struct elf_link_hash_entry *h; | |
3194 | bfd_vma relocation; | |
435b1e90 | 3195 | bfd_vma addend = (bfd_vma) 0; |
37c644f2 | 3196 | bfd_reloc_status_type r; |
fbca6ad9 | 3197 | int seen_stt_datalabel = 0; |
3376eaf5 KK |
3198 | bfd_vma off; |
3199 | int tls_type; | |
37c644f2 AO |
3200 | |
3201 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3202 | ||
37c644f2 AO |
3203 | r_type = ELF32_R_TYPE (rel->r_info); |
3204 | ||
3205 | /* Many of the relocs are only used for relaxing, and are | |
067653c5 | 3206 | handled entirely by the relaxation code. */ |
d38eb334 DD |
3207 | if (r_type >= (int) R_SH_GNU_VTINHERIT |
3208 | && r_type <= (int) R_SH_LABEL) | |
37c644f2 | 3209 | continue; |
c5aeb40f AO |
3210 | if (r_type == (int) R_SH_NONE) |
3211 | continue; | |
37c644f2 AO |
3212 | |
3213 | if (r_type < 0 | |
3214 | || r_type >= R_SH_max | |
3215 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC | |
06bb75c1 | 3216 | && r_type <= (int) R_SH_LAST_INVALID_RELOC) |
fbca6ad9 AO |
3217 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_3 |
3218 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_3) | |
3219 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_4 | |
3220 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_4) | |
3376eaf5 KK |
3221 | || ( r_type >= (int) R_SH_FIRST_INVALID_RELOC_5 |
3222 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_5) | |
06bb75c1 AO |
3223 | || (r_type >= (int) R_SH_FIRST_INVALID_RELOC_2 |
3224 | && r_type <= (int) R_SH_LAST_INVALID_RELOC_2)) | |
37c644f2 AO |
3225 | { |
3226 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3227 | return FALSE; |
37c644f2 AO |
3228 | } |
3229 | ||
55e6e397 | 3230 | howto = get_howto_table (output_bfd) + r_type; |
37c644f2 | 3231 | |
146be91a | 3232 | /* For relocs that aren't partial_inplace, we get the addend from |
067653c5 | 3233 | the relocation. */ |
146be91a HPN |
3234 | if (! howto->partial_inplace) |
3235 | addend = rel->r_addend; | |
3236 | ||
37c644f2 AO |
3237 | h = NULL; |
3238 | sym = NULL; | |
3239 | sec = NULL; | |
3240 | if (r_symndx < symtab_hdr->sh_info) | |
3241 | { | |
3242 | sym = local_syms + r_symndx; | |
3243 | sec = local_sections[r_symndx]; | |
3244 | relocation = (sec->output_section->vma | |
3245 | + sec->output_offset | |
3246 | + sym->st_value); | |
fbca6ad9 AO |
3247 | /* A local symbol never has STO_SH5_ISA32, so we don't need |
3248 | datalabel processing here. Make sure this does not change | |
3249 | without notice. */ | |
3250 | if ((sym->st_other & STO_SH5_ISA32) != 0) | |
3251 | ((*info->callbacks->reloc_dangerous) | |
3252 | (info, | |
3253 | _("Unexpected STO_SH5_ISA32 on local symbol is not handled"), | |
3254 | input_bfd, input_section, rel->r_offset)); | |
ab96bf03 AM |
3255 | |
3256 | if (sec != NULL && elf_discarded_section (sec)) | |
3257 | /* Handled below. */ | |
3258 | ; | |
3259 | else if (info->relocatable) | |
8a3975e6 | 3260 | { |
1049f94e | 3261 | /* This is a relocatable link. We don't have to change |
8a3975e6 AO |
3262 | anything, unless the reloc is against a section symbol, |
3263 | in which case we have to adjust according to where the | |
3264 | section symbol winds up in the output section. */ | |
8a3975e6 | 3265 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) |
146be91a HPN |
3266 | { |
3267 | if (! howto->partial_inplace) | |
3268 | { | |
3269 | /* For relocations with the addend in the | |
3270 | relocation, we need just to update the addend. | |
3271 | All real relocs are of type partial_inplace; this | |
3272 | code is mostly for completeness. */ | |
ab96bf03 | 3273 | rel->r_addend += sec->output_offset; |
146be91a HPN |
3274 | |
3275 | continue; | |
3276 | } | |
3277 | ||
3278 | /* Relocs of type partial_inplace need to pick up the | |
3279 | contents in the contents and add the offset resulting | |
3280 | from the changed location of the section symbol. | |
3281 | Using _bfd_final_link_relocate (e.g. goto | |
3282 | final_link_relocate) here would be wrong, because | |
3283 | relocations marked pc_relative would get the current | |
3284 | location subtracted, and we must only do that at the | |
3285 | final link. */ | |
3286 | r = _bfd_relocate_contents (howto, input_bfd, | |
3287 | sec->output_offset | |
3288 | + sym->st_value, | |
3289 | contents + rel->r_offset); | |
3290 | goto relocation_done; | |
3291 | } | |
8a3975e6 AO |
3292 | |
3293 | continue; | |
3294 | } | |
f8df10f4 JJ |
3295 | else if (! howto->partial_inplace) |
3296 | { | |
8517fae7 | 3297 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
f8df10f4 JJ |
3298 | addend = rel->r_addend; |
3299 | } | |
3300 | else if ((sec->flags & SEC_MERGE) | |
3301 | && ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3302 | { | |
3303 | asection *msec; | |
3304 | ||
3305 | if (howto->rightshift || howto->src_mask != 0xffffffff) | |
3306 | { | |
3307 | (*_bfd_error_handler) | |
d003868e AM |
3308 | (_("%B(%A+0x%lx): %s relocation against SEC_MERGE section"), |
3309 | input_bfd, input_section, | |
f8df10f4 | 3310 | (long) rel->r_offset, howto->name); |
b34976b6 | 3311 | return FALSE; |
f8df10f4 JJ |
3312 | } |
3313 | ||
067653c5 AM |
3314 | addend = bfd_get_32 (input_bfd, contents + rel->r_offset); |
3315 | msec = sec; | |
3316 | addend = | |
c629eae0 | 3317 | _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend) |
f8df10f4 JJ |
3318 | - relocation; |
3319 | addend += msec->output_section->vma + msec->output_offset; | |
3320 | bfd_put_32 (input_bfd, addend, contents + rel->r_offset); | |
3321 | addend = 0; | |
3322 | } | |
37c644f2 AO |
3323 | } |
3324 | else | |
3325 | { | |
560e09e9 NC |
3326 | /* FIXME: Ought to make use of the RELOC_FOR_GLOBAL_SYMBOL macro. */ |
3327 | ||
ab96bf03 | 3328 | relocation = 0; |
37c644f2 AO |
3329 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
3330 | while (h->root.type == bfd_link_hash_indirect | |
3331 | || h->root.type == bfd_link_hash_warning) | |
fbca6ad9 AO |
3332 | { |
3333 | #ifdef INCLUDE_SHMEDIA | |
3334 | /* If the reference passes a symbol marked with | |
3335 | STT_DATALABEL, then any STO_SH5_ISA32 on the final value | |
3336 | doesn't count. */ | |
3337 | seen_stt_datalabel |= h->type == STT_DATALABEL; | |
3338 | #endif | |
3339 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
3340 | } | |
37c644f2 AO |
3341 | if (h->root.type == bfd_link_hash_defined |
3342 | || h->root.type == bfd_link_hash_defweak) | |
3343 | { | |
b34976b6 | 3344 | bfd_boolean dyn; |
067653c5 AM |
3345 | |
3346 | dyn = htab->root.dynamic_sections_created; | |
37c644f2 AO |
3347 | sec = h->root.u.def.section; |
3348 | /* In these cases, we don't need the relocation value. | |
3349 | We check specially because in some obscure cases | |
435b1e90 | 3350 | sec->output_section will be NULL. */ |
37c644f2 | 3351 | if (r_type == R_SH_GOTPC |
fbca6ad9 AO |
3352 | || r_type == R_SH_GOTPC_LOW16 |
3353 | || r_type == R_SH_GOTPC_MEDLOW16 | |
3354 | || r_type == R_SH_GOTPC_MEDHI16 | |
3355 | || r_type == R_SH_GOTPC_HI16 | |
3356 | || ((r_type == R_SH_PLT32 | |
3357 | || r_type == R_SH_PLT_LOW16 | |
3358 | || r_type == R_SH_PLT_MEDLOW16 | |
3359 | || r_type == R_SH_PLT_MEDHI16 | |
3360 | || r_type == R_SH_PLT_HI16) | |
37c644f2 | 3361 | && h->plt.offset != (bfd_vma) -1) |
fbca6ad9 AO |
3362 | || ((r_type == R_SH_GOT32 |
3363 | || r_type == R_SH_GOT_LOW16 | |
3364 | || r_type == R_SH_GOT_MEDLOW16 | |
3365 | || r_type == R_SH_GOT_MEDHI16 | |
3366 | || r_type == R_SH_GOT_HI16) | |
267fb3c1 | 3367 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
37c644f2 AO |
3368 | && (! info->shared |
3369 | || (! info->symbolic && h->dynindx != -1) | |
f5385ebf | 3370 | || !h->def_regular)) |
37c644f2 AO |
3371 | /* The cases above are those in which relocation is |
3372 | overwritten in the switch block below. The cases | |
3373 | below are those in which we must defer relocation | |
3374 | to run-time, because we can't resolve absolute | |
3375 | addresses when creating a shared library. */ | |
3376 | || (info->shared | |
3377 | && ((! info->symbolic && h->dynindx != -1) | |
f5385ebf | 3378 | || !h->def_regular) |
37c644f2 | 3379 | && ((r_type == R_SH_DIR32 |
f5385ebf | 3380 | && !h->forced_local) |
f50ad433 KK |
3381 | || (r_type == R_SH_REL32 |
3382 | && !SYMBOL_CALLS_LOCAL (info, h))) | |
37c644f2 AO |
3383 | && ((input_section->flags & SEC_ALLOC) != 0 |
3384 | /* DWARF will emit R_SH_DIR32 relocations in its | |
3385 | sections against symbols defined externally | |
3386 | in shared libraries. We can't do anything | |
3387 | with them here. */ | |
067653c5 | 3388 | || ((input_section->flags & SEC_DEBUGGING) != 0 |
f5385ebf | 3389 | && h->def_dynamic))) |
1448fa32 KK |
3390 | /* Dynamic relocs are not propagated for SEC_DEBUGGING |
3391 | sections because such sections are not SEC_ALLOC and | |
3392 | thus ld.so will not process them. */ | |
3393 | || (sec->output_section == NULL | |
3394 | && ((input_section->flags & SEC_DEBUGGING) != 0 | |
f5385ebf | 3395 | && h->def_dynamic)) |
3376eaf5 KK |
3396 | || (sec->output_section == NULL |
3397 | && (sh_elf_hash_entry (h)->tls_type == GOT_TLS_IE | |
3398 | || sh_elf_hash_entry (h)->tls_type == GOT_TLS_GD))) | |
ab96bf03 AM |
3399 | ; |
3400 | else if (sec->output_section != NULL) | |
3401 | relocation = ((h->root.u.def.value | |
3402 | + sec->output_section->vma | |
3403 | + sec->output_offset) | |
3404 | /* A STO_SH5_ISA32 causes a "bitor 1" to the | |
3405 | symbol value, unless we've seen | |
3406 | STT_DATALABEL on the way to it. */ | |
3407 | | ((h->other & STO_SH5_ISA32) != 0 | |
3408 | && ! seen_stt_datalabel)); | |
3409 | else if (!info->relocatable) | |
37c644f2 AO |
3410 | { |
3411 | (*_bfd_error_handler) | |
843fe662 L |
3412 | (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"), |
3413 | input_bfd, | |
3414 | input_section, | |
3415 | (long) rel->r_offset, | |
3416 | howto->name, | |
3417 | h->root.root.string); | |
b34976b6 | 3418 | return FALSE; |
37c644f2 | 3419 | } |
37c644f2 AO |
3420 | } |
3421 | else if (h->root.type == bfd_link_hash_undefweak) | |
ab96bf03 | 3422 | ; |
59c2e50f | 3423 | else if (info->unresolved_syms_in_objects == RM_IGNORE |
067653c5 | 3424 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) |
ab96bf03 AM |
3425 | ; |
3426 | else if (!info->relocatable) | |
37c644f2 | 3427 | { |
560e09e9 NC |
3428 | if (! info->callbacks->undefined_symbol |
3429 | (info, h->root.root.string, input_bfd, | |
3430 | input_section, rel->r_offset, | |
59c2e50f | 3431 | (info->unresolved_syms_in_objects == RM_GENERATE_ERROR |
560e09e9 | 3432 | || ELF_ST_VISIBILITY (h->other)))) |
b34976b6 | 3433 | return FALSE; |
37c644f2 AO |
3434 | } |
3435 | } | |
3436 | ||
ab96bf03 AM |
3437 | if (sec != NULL && elf_discarded_section (sec)) |
3438 | { | |
3439 | /* For relocs against symbols from removed linkonce sections, | |
3440 | or sections discarded by a linker script, we just want the | |
3441 | section contents zeroed. Avoid any special processing. */ | |
3442 | _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); | |
3443 | rel->r_info = 0; | |
3444 | rel->r_addend = 0; | |
3445 | continue; | |
3446 | } | |
3447 | ||
3448 | if (info->relocatable) | |
3449 | continue; | |
3450 | ||
435b1e90 | 3451 | switch ((int) r_type) |
37c644f2 AO |
3452 | { |
3453 | final_link_relocate: | |
3454 | /* COFF relocs don't use the addend. The addend is used for | |
435b1e90 | 3455 | R_SH_DIR32 to be compatible with other compilers. */ |
37c644f2 AO |
3456 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3457 | contents, rel->r_offset, | |
3458 | relocation, addend); | |
3459 | break; | |
3460 | ||
3461 | case R_SH_IND12W: | |
cd6ec716 DD |
3462 | goto final_link_relocate; |
3463 | ||
37c644f2 AO |
3464 | case R_SH_DIR8WPN: |
3465 | case R_SH_DIR8WPZ: | |
3466 | case R_SH_DIR8WPL: | |
cd6ec716 DD |
3467 | /* If the reloc is against the start of this section, then |
3468 | the assembler has already taken care of it and the reloc | |
3469 | is here only to assist in relaxing. If the reloc is not | |
3470 | against the start of this section, then it's against an | |
3471 | external symbol and we must deal with it ourselves. */ | |
3472 | if (input_section->output_section->vma + input_section->output_offset | |
3473 | != relocation) | |
3474 | { | |
3475 | int disp = (relocation | |
3476 | - input_section->output_section->vma | |
3477 | - input_section->output_offset | |
3478 | - rel->r_offset); | |
3479 | int mask = 0; | |
3480 | switch (r_type) | |
3481 | { | |
3482 | case R_SH_DIR8WPN: | |
3483 | case R_SH_DIR8WPZ: mask = 1; break; | |
3484 | case R_SH_DIR8WPL: mask = 3; break; | |
3485 | default: mask = 0; break; | |
3486 | } | |
3487 | if (disp & mask) | |
3488 | { | |
3489 | ((*_bfd_error_handler) | |
d003868e AM |
3490 | (_("%B: 0x%lx: fatal: unaligned branch target for relax-support relocation"), |
3491 | input_section->owner, | |
cd6ec716 DD |
3492 | (unsigned long) rel->r_offset)); |
3493 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3494 | return FALSE; |
cd6ec716 DD |
3495 | } |
3496 | relocation -= 4; | |
3497 | goto final_link_relocate; | |
3498 | } | |
3499 | r = bfd_reloc_ok; | |
3500 | break; | |
37c644f2 AO |
3501 | |
3502 | default: | |
fbca6ad9 AO |
3503 | #ifdef INCLUDE_SHMEDIA |
3504 | if (shmedia_prepare_reloc (info, input_bfd, input_section, | |
3505 | contents, rel, &relocation)) | |
3506 | goto final_link_relocate; | |
3507 | #endif | |
37c644f2 | 3508 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 3509 | return FALSE; |
37c644f2 | 3510 | |
d38eb334 DD |
3511 | case R_SH_DIR16: |
3512 | case R_SH_DIR8: | |
3513 | case R_SH_DIR8U: | |
3514 | case R_SH_DIR8S: | |
3515 | case R_SH_DIR4U: | |
3516 | goto final_link_relocate; | |
3517 | ||
3518 | case R_SH_DIR8UL: | |
3519 | case R_SH_DIR4UL: | |
3520 | if (relocation & 3) | |
3521 | { | |
3522 | ((*_bfd_error_handler) | |
d003868e AM |
3523 | (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"), |
3524 | input_section->owner, | |
d38eb334 | 3525 | (unsigned long) rel->r_offset, howto->name, |
d003868e | 3526 | (unsigned long) relocation)); |
d38eb334 DD |
3527 | bfd_set_error (bfd_error_bad_value); |
3528 | return FALSE; | |
3529 | } | |
3530 | goto final_link_relocate; | |
3531 | ||
3532 | case R_SH_DIR8UW: | |
3533 | case R_SH_DIR8SW: | |
3534 | case R_SH_DIR4UW: | |
3535 | if (relocation & 1) | |
3536 | { | |
3537 | ((*_bfd_error_handler) | |
d003868e AM |
3538 | (_("%B: 0x%lx: fatal: unaligned %s relocation 0x%lx"), |
3539 | input_section->owner, | |
d38eb334 | 3540 | (unsigned long) rel->r_offset, howto->name, |
d003868e | 3541 | (unsigned long) relocation)); |
d38eb334 DD |
3542 | bfd_set_error (bfd_error_bad_value); |
3543 | return FALSE; | |
3544 | } | |
3545 | goto final_link_relocate; | |
3546 | ||
3547 | case R_SH_PSHA: | |
3548 | if ((signed int)relocation < -32 | |
3549 | || (signed int)relocation > 32) | |
3550 | { | |
3551 | ((*_bfd_error_handler) | |
d003868e AM |
3552 | (_("%B: 0x%lx: fatal: R_SH_PSHA relocation %d not in range -32..32"), |
3553 | input_section->owner, | |
d38eb334 | 3554 | (unsigned long) rel->r_offset, |
d003868e | 3555 | (unsigned long) relocation)); |
d38eb334 DD |
3556 | bfd_set_error (bfd_error_bad_value); |
3557 | return FALSE; | |
3558 | } | |
3559 | goto final_link_relocate; | |
3560 | ||
3561 | case R_SH_PSHL: | |
3562 | if ((signed int)relocation < -16 | |
3563 | || (signed int)relocation > 16) | |
3564 | { | |
3565 | ((*_bfd_error_handler) | |
d003868e AM |
3566 | (_("%B: 0x%lx: fatal: R_SH_PSHL relocation %d not in range -32..32"), |
3567 | input_section->owner, | |
d38eb334 | 3568 | (unsigned long) rel->r_offset, |
d003868e | 3569 | (unsigned long) relocation)); |
d38eb334 DD |
3570 | bfd_set_error (bfd_error_bad_value); |
3571 | return FALSE; | |
3572 | } | |
3573 | goto final_link_relocate; | |
3574 | ||
37c644f2 AO |
3575 | case R_SH_DIR32: |
3576 | case R_SH_REL32: | |
46e993b9 KK |
3577 | #ifdef INCLUDE_SHMEDIA |
3578 | case R_SH_IMM_LOW16_PCREL: | |
3579 | case R_SH_IMM_MEDLOW16_PCREL: | |
3580 | case R_SH_IMM_MEDHI16_PCREL: | |
3581 | case R_SH_IMM_HI16_PCREL: | |
3582 | #endif | |
37c644f2 | 3583 | if (info->shared |
04e534c3 KK |
3584 | && (h == NULL |
3585 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3586 | || h->root.type != bfd_link_hash_undefweak) | |
ec338859 | 3587 | && r_symndx != 0 |
37c644f2 | 3588 | && (input_section->flags & SEC_ALLOC) != 0 |
46e993b9 | 3589 | && (r_type == R_SH_DIR32 |
3d85aebe | 3590 | || !SYMBOL_CALLS_LOCAL (info, h))) |
37c644f2 AO |
3591 | { |
3592 | Elf_Internal_Rela outrel; | |
947216bf | 3593 | bfd_byte *loc; |
b34976b6 | 3594 | bfd_boolean skip, relocate; |
37c644f2 AO |
3595 | |
3596 | /* When generating a shared object, these relocations | |
3597 | are copied into the output file to be resolved at run | |
3598 | time. */ | |
3599 | ||
3600 | if (sreloc == NULL) | |
3601 | { | |
3602 | const char *name; | |
3603 | ||
3604 | name = (bfd_elf_string_from_elf_section | |
3605 | (input_bfd, | |
3606 | elf_elfheader (input_bfd)->e_shstrndx, | |
3607 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
3608 | if (name == NULL) | |
b34976b6 | 3609 | return FALSE; |
37c644f2 | 3610 | |
0112cd26 | 3611 | BFD_ASSERT (CONST_STRNEQ (name, ".rela") |
37c644f2 AO |
3612 | && strcmp (bfd_get_section_name (input_bfd, |
3613 | input_section), | |
3614 | name + 5) == 0); | |
3615 | ||
3616 | sreloc = bfd_get_section_by_name (dynobj, name); | |
3617 | BFD_ASSERT (sreloc != NULL); | |
3618 | } | |
3619 | ||
b34976b6 AM |
3620 | skip = FALSE; |
3621 | relocate = FALSE; | |
37c644f2 | 3622 | |
c629eae0 JJ |
3623 | outrel.r_offset = |
3624 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3625 | rel->r_offset); | |
3626 | if (outrel.r_offset == (bfd_vma) -1) | |
b34976b6 | 3627 | skip = TRUE; |
0bb2d96a | 3628 | else if (outrel.r_offset == (bfd_vma) -2) |
b34976b6 | 3629 | skip = TRUE, relocate = TRUE; |
37c644f2 AO |
3630 | outrel.r_offset += (input_section->output_section->vma |
3631 | + input_section->output_offset); | |
3632 | ||
3633 | if (skip) | |
0bb2d96a | 3634 | memset (&outrel, 0, sizeof outrel); |
37c644f2 AO |
3635 | else if (r_type == R_SH_REL32) |
3636 | { | |
3637 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
37c644f2 | 3638 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_REL32); |
146be91a | 3639 | outrel.r_addend |
55e6e397 RS |
3640 | = (howto->partial_inplace |
3641 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
3642 | : addend); | |
37c644f2 | 3643 | } |
46e993b9 KK |
3644 | #ifdef INCLUDE_SHMEDIA |
3645 | else if (r_type == R_SH_IMM_LOW16_PCREL | |
3646 | || r_type == R_SH_IMM_MEDLOW16_PCREL | |
3647 | || r_type == R_SH_IMM_MEDHI16_PCREL | |
3648 | || r_type == R_SH_IMM_HI16_PCREL) | |
3649 | { | |
3650 | BFD_ASSERT (h != NULL && h->dynindx != -1); | |
3651 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
3652 | outrel.r_addend = addend; | |
3653 | } | |
3654 | #endif | |
37c644f2 AO |
3655 | else |
3656 | { | |
3657 | /* h->dynindx may be -1 if this symbol was marked to | |
3658 | become local. */ | |
3659 | if (h == NULL | |
3660 | || ((info->symbolic || h->dynindx == -1) | |
f5385ebf | 3661 | && h->def_regular)) |
37c644f2 | 3662 | { |
55e6e397 | 3663 | relocate = howto->partial_inplace; |
37c644f2 | 3664 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); |
37c644f2 AO |
3665 | } |
3666 | else | |
3667 | { | |
3668 | BFD_ASSERT (h->dynindx != -1); | |
37c644f2 | 3669 | outrel.r_info = ELF32_R_INFO (h->dynindx, R_SH_DIR32); |
37c644f2 | 3670 | } |
55e6e397 RS |
3671 | outrel.r_addend = relocation; |
3672 | outrel.r_addend | |
3673 | += (howto->partial_inplace | |
3674 | ? bfd_get_32 (input_bfd, contents + rel->r_offset) | |
3675 | : addend); | |
37c644f2 AO |
3676 | } |
3677 | ||
947216bf AM |
3678 | loc = sreloc->contents; |
3679 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
3680 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 AO |
3681 | |
3682 | /* If this reloc is against an external symbol, we do | |
3683 | not want to fiddle with the addend. Otherwise, we | |
3684 | need to include the symbol value so that it becomes | |
3685 | an addend for the dynamic reloc. */ | |
3686 | if (! relocate) | |
3687 | continue; | |
3688 | } | |
37c644f2 AO |
3689 | goto final_link_relocate; |
3690 | ||
fbca6ad9 AO |
3691 | case R_SH_GOTPLT32: |
3692 | #ifdef INCLUDE_SHMEDIA | |
3693 | case R_SH_GOTPLT_LOW16: | |
3694 | case R_SH_GOTPLT_MEDLOW16: | |
3695 | case R_SH_GOTPLT_MEDHI16: | |
3696 | case R_SH_GOTPLT_HI16: | |
3697 | case R_SH_GOTPLT10BY4: | |
3698 | case R_SH_GOTPLT10BY8: | |
3699 | #endif | |
3700 | /* Relocation is to the entry for this symbol in the | |
3701 | procedure linkage table. */ | |
3702 | ||
3703 | if (h == NULL | |
f5385ebf | 3704 | || h->forced_local |
fbca6ad9 AO |
3705 | || ! info->shared |
3706 | || info->symbolic | |
3707 | || h->dynindx == -1 | |
3708 | || h->plt.offset == (bfd_vma) -1 | |
3709 | || h->got.offset != (bfd_vma) -1) | |
3710 | goto force_got; | |
3711 | ||
3712 | /* Relocation is to the entry for this symbol in the global | |
3713 | offset table extension for the procedure linkage table. */ | |
fbca6ad9 | 3714 | |
067653c5 | 3715 | BFD_ASSERT (sgotplt != NULL); |
fbca6ad9 | 3716 | relocation = (sgotplt->output_offset |
55e6e397 RS |
3717 | + (get_plt_index (htab->plt_info, h->plt.offset) |
3718 | + 3) * 4); | |
fbca6ad9 AO |
3719 | |
3720 | #ifdef GOT_BIAS | |
3721 | relocation -= GOT_BIAS; | |
3722 | #endif | |
3723 | ||
3724 | goto final_link_relocate; | |
3725 | ||
3726 | force_got: | |
37c644f2 | 3727 | case R_SH_GOT32: |
fbca6ad9 AO |
3728 | #ifdef INCLUDE_SHMEDIA |
3729 | case R_SH_GOT_LOW16: | |
3730 | case R_SH_GOT_MEDLOW16: | |
3731 | case R_SH_GOT_MEDHI16: | |
3732 | case R_SH_GOT_HI16: | |
3733 | case R_SH_GOT10BY4: | |
3734 | case R_SH_GOT10BY8: | |
3735 | #endif | |
37c644f2 AO |
3736 | /* Relocation is to the entry for this symbol in the global |
3737 | offset table. */ | |
067653c5 AM |
3738 | |
3739 | BFD_ASSERT (sgot != NULL); | |
37c644f2 AO |
3740 | |
3741 | if (h != NULL) | |
3742 | { | |
b34976b6 | 3743 | bfd_boolean dyn; |
37c644f2 AO |
3744 | |
3745 | off = h->got.offset; | |
fbca6ad9 AO |
3746 | #ifdef INCLUDE_SHMEDIA |
3747 | if (seen_stt_datalabel) | |
3748 | { | |
3749 | struct elf_sh_link_hash_entry *hsh; | |
3750 | ||
3751 | hsh = (struct elf_sh_link_hash_entry *)h; | |
396a6083 | 3752 | off = hsh->datalabel_got.offset; |
fbca6ad9 AO |
3753 | } |
3754 | #endif | |
37c644f2 AO |
3755 | BFD_ASSERT (off != (bfd_vma) -1); |
3756 | ||
067653c5 | 3757 | dyn = htab->root.dynamic_sections_created; |
267fb3c1 | 3758 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h) |
37c644f2 | 3759 | || (info->shared |
3d85aebe | 3760 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
04e534c3 KK |
3761 | || (ELF_ST_VISIBILITY (h->other) |
3762 | && h->root.type == bfd_link_hash_undefweak)) | |
37c644f2 AO |
3763 | { |
3764 | /* This is actually a static link, or it is a | |
3765 | -Bsymbolic link and the symbol is defined | |
3766 | locally, or the symbol was forced to be local | |
3767 | because of a version file. We must initialize | |
3768 | this entry in the global offset table. Since the | |
3769 | offset must always be a multiple of 4, we use the | |
3770 | least significant bit to record whether we have | |
3771 | initialized it already. | |
3772 | ||
3773 | When doing a dynamic link, we create a .rela.got | |
3774 | relocation entry to initialize the value. This | |
3775 | is done in the finish_dynamic_symbol routine. */ | |
3776 | if ((off & 1) != 0) | |
3777 | off &= ~1; | |
3778 | else | |
3779 | { | |
3780 | bfd_put_32 (output_bfd, relocation, | |
3781 | sgot->contents + off); | |
fbca6ad9 AO |
3782 | #ifdef INCLUDE_SHMEDIA |
3783 | if (seen_stt_datalabel) | |
3784 | { | |
3785 | struct elf_sh_link_hash_entry *hsh; | |
3786 | ||
3787 | hsh = (struct elf_sh_link_hash_entry *)h; | |
396a6083 | 3788 | hsh->datalabel_got.offset |= 1; |
fbca6ad9 AO |
3789 | } |
3790 | else | |
3791 | #endif | |
3792 | h->got.offset |= 1; | |
37c644f2 AO |
3793 | } |
3794 | } | |
3795 | ||
3796 | relocation = sgot->output_offset + off; | |
3797 | } | |
3798 | else | |
3799 | { | |
fbca6ad9 AO |
3800 | #ifdef INCLUDE_SHMEDIA |
3801 | if (rel->r_addend) | |
3802 | { | |
3803 | BFD_ASSERT (local_got_offsets != NULL | |
3804 | && (local_got_offsets[symtab_hdr->sh_info | |
3805 | + r_symndx] | |
3806 | != (bfd_vma) -1)); | |
3807 | ||
3808 | off = local_got_offsets[symtab_hdr->sh_info | |
3809 | + r_symndx]; | |
3810 | } | |
3811 | else | |
3812 | { | |
3813 | #endif | |
37c644f2 AO |
3814 | BFD_ASSERT (local_got_offsets != NULL |
3815 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
3816 | ||
3817 | off = local_got_offsets[r_symndx]; | |
fbca6ad9 AO |
3818 | #ifdef INCLUDE_SHMEDIA |
3819 | } | |
3820 | #endif | |
37c644f2 AO |
3821 | |
3822 | /* The offset must always be a multiple of 4. We use | |
3823 | the least significant bit to record whether we have | |
3824 | already generated the necessary reloc. */ | |
3825 | if ((off & 1) != 0) | |
3826 | off &= ~1; | |
3827 | else | |
3828 | { | |
3829 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
3830 | ||
3831 | if (info->shared) | |
3832 | { | |
37c644f2 | 3833 | Elf_Internal_Rela outrel; |
947216bf | 3834 | bfd_byte *loc; |
37c644f2 | 3835 | |
3376eaf5 KK |
3836 | if (srelgot == NULL) |
3837 | { | |
3838 | srelgot = bfd_get_section_by_name (dynobj, | |
3839 | ".rela.got"); | |
3840 | BFD_ASSERT (srelgot != NULL); | |
3841 | } | |
37c644f2 AO |
3842 | |
3843 | outrel.r_offset = (sgot->output_section->vma | |
3844 | + sgot->output_offset | |
3845 | + off); | |
3846 | outrel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
3847 | outrel.r_addend = relocation; | |
947216bf AM |
3848 | loc = srelgot->contents; |
3849 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3850 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
37c644f2 AO |
3851 | } |
3852 | ||
fbca6ad9 AO |
3853 | #ifdef INCLUDE_SHMEDIA |
3854 | if (rel->r_addend) | |
3855 | local_got_offsets[symtab_hdr->sh_info + r_symndx] |= 1; | |
3856 | else | |
3857 | #endif | |
3858 | local_got_offsets[r_symndx] |= 1; | |
37c644f2 AO |
3859 | } |
3860 | ||
3861 | relocation = sgot->output_offset + off; | |
3862 | } | |
3863 | ||
fbca6ad9 | 3864 | #ifdef GOT_BIAS |
067653c5 | 3865 | relocation -= GOT_BIAS; |
fbca6ad9 AO |
3866 | #endif |
3867 | ||
37c644f2 AO |
3868 | goto final_link_relocate; |
3869 | ||
3870 | case R_SH_GOTOFF: | |
fbca6ad9 AO |
3871 | #ifdef INCLUDE_SHMEDIA |
3872 | case R_SH_GOTOFF_LOW16: | |
3873 | case R_SH_GOTOFF_MEDLOW16: | |
3874 | case R_SH_GOTOFF_MEDHI16: | |
3875 | case R_SH_GOTOFF_HI16: | |
3876 | #endif | |
37c644f2 AO |
3877 | /* Relocation is relative to the start of the global offset |
3878 | table. */ | |
3879 | ||
067653c5 | 3880 | BFD_ASSERT (sgot != NULL); |
37c644f2 AO |
3881 | |
3882 | /* Note that sgot->output_offset is not involved in this | |
3883 | calculation. We always want the start of .got. If we | |
3884 | defined _GLOBAL_OFFSET_TABLE in a different way, as is | |
3885 | permitted by the ABI, we might have to change this | |
3886 | calculation. */ | |
3887 | relocation -= sgot->output_section->vma; | |
3888 | ||
fbca6ad9 AO |
3889 | #ifdef GOT_BIAS |
3890 | relocation -= GOT_BIAS; | |
3891 | #endif | |
3892 | ||
3893 | addend = rel->r_addend; | |
3894 | ||
37c644f2 AO |
3895 | goto final_link_relocate; |
3896 | ||
3897 | case R_SH_GOTPC: | |
fbca6ad9 AO |
3898 | #ifdef INCLUDE_SHMEDIA |
3899 | case R_SH_GOTPC_LOW16: | |
3900 | case R_SH_GOTPC_MEDLOW16: | |
3901 | case R_SH_GOTPC_MEDHI16: | |
3902 | case R_SH_GOTPC_HI16: | |
3903 | #endif | |
37c644f2 AO |
3904 | /* Use global offset table as symbol value. */ |
3905 | ||
067653c5 | 3906 | BFD_ASSERT (sgot != NULL); |
37c644f2 AO |
3907 | relocation = sgot->output_section->vma; |
3908 | ||
fbca6ad9 AO |
3909 | #ifdef GOT_BIAS |
3910 | relocation += GOT_BIAS; | |
3911 | #endif | |
3912 | ||
3913 | addend = rel->r_addend; | |
3914 | ||
37c644f2 AO |
3915 | goto final_link_relocate; |
3916 | ||
3917 | case R_SH_PLT32: | |
fbca6ad9 AO |
3918 | #ifdef INCLUDE_SHMEDIA |
3919 | case R_SH_PLT_LOW16: | |
3920 | case R_SH_PLT_MEDLOW16: | |
3921 | case R_SH_PLT_MEDHI16: | |
3922 | case R_SH_PLT_HI16: | |
3923 | #endif | |
37c644f2 AO |
3924 | /* Relocation is to the entry for this symbol in the |
3925 | procedure linkage table. */ | |
3926 | ||
3927 | /* Resolve a PLT reloc against a local symbol directly, | |
3928 | without using the procedure linkage table. */ | |
3929 | if (h == NULL) | |
3930 | goto final_link_relocate; | |
3931 | ||
f5385ebf | 3932 | if (h->forced_local) |
37c644f2 AO |
3933 | goto final_link_relocate; |
3934 | ||
3935 | if (h->plt.offset == (bfd_vma) -1) | |
3936 | { | |
3937 | /* We didn't make a PLT entry for this symbol. This | |
3938 | happens when statically linking PIC code, or when | |
3939 | using -Bsymbolic. */ | |
3940 | goto final_link_relocate; | |
3941 | } | |
3942 | ||
067653c5 | 3943 | BFD_ASSERT (splt != NULL); |
37c644f2 AO |
3944 | relocation = (splt->output_section->vma |
3945 | + splt->output_offset | |
3946 | + h->plt.offset); | |
3947 | ||
fbca6ad9 AO |
3948 | #ifdef INCLUDE_SHMEDIA |
3949 | relocation++; | |
3950 | #endif | |
3951 | ||
3952 | addend = rel->r_addend; | |
3953 | ||
37c644f2 AO |
3954 | goto final_link_relocate; |
3955 | ||
3956 | case R_SH_LOOP_START: | |
3957 | { | |
3958 | static bfd_vma start, end; | |
3959 | ||
3960 | start = (relocation + rel->r_addend | |
3961 | - (sec->output_section->vma + sec->output_offset)); | |
3962 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
3963 | rel->r_offset, sec, start, end); | |
3964 | break; | |
3965 | ||
3966 | case R_SH_LOOP_END: | |
3967 | end = (relocation + rel->r_addend | |
3968 | - (sec->output_section->vma + sec->output_offset)); | |
3969 | r = sh_elf_reloc_loop (r_type, input_bfd, input_section, contents, | |
3970 | rel->r_offset, sec, start, end); | |
3971 | break; | |
3972 | } | |
3376eaf5 KK |
3973 | |
3974 | case R_SH_TLS_GD_32: | |
3975 | case R_SH_TLS_IE_32: | |
3976 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); | |
3977 | tls_type = GOT_UNKNOWN; | |
3978 | if (h == NULL && local_got_offsets) | |
3979 | tls_type = sh_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3980 | else if (h != NULL) | |
3981 | { | |
3982 | tls_type = sh_elf_hash_entry (h)->tls_type; | |
3983 | if (! info->shared | |
3984 | && (h->dynindx == -1 | |
f5385ebf | 3985 | || h->def_regular)) |
267fb3c1 | 3986 | r_type = R_SH_TLS_LE_32; |
3376eaf5 KK |
3987 | } |
3988 | ||
3989 | if (r_type == R_SH_TLS_GD_32 && tls_type == GOT_TLS_IE) | |
3990 | r_type = R_SH_TLS_IE_32; | |
3991 | ||
3992 | if (r_type == R_SH_TLS_LE_32) | |
3993 | { | |
3994 | bfd_vma offset; | |
3995 | unsigned short insn; | |
3376eaf5 KK |
3996 | |
3997 | if (ELF32_R_TYPE (rel->r_info) == R_SH_TLS_GD_32) | |
3998 | { | |
3999 | /* GD->LE transition: | |
4000 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
b34976b6 | 4001 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; |
3376eaf5 KK |
4002 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: |
4003 | We change it into: | |
4004 | mov.l 1f,r4; stc gbr,r0; add r4,r0; nop; | |
4005 | nop; nop; ... | |
4006 | 1: .long x@TPOFF; 2: .long __tls_get_addr@PLT; 3:. */ | |
4007 | ||
4008 | offset = rel->r_offset; | |
4009 | BFD_ASSERT (offset >= 16); | |
4010 | /* Size of GD instructions is 16 or 18. */ | |
4011 | offset -= 16; | |
4012 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4013 | if ((insn & 0xff00) == 0xc700) | |
4014 | { | |
4015 | BFD_ASSERT (offset >= 2); | |
4016 | offset -= 2; | |
4017 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4018 | } | |
4019 | ||
4020 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
4021 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4022 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
4023 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4024 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
4025 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
4026 | BFD_ASSERT (insn == 0x310c); | |
4027 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
4028 | BFD_ASSERT (insn == 0x410b); | |
4029 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
4030 | BFD_ASSERT (insn == 0x34cc); | |
4031 | ||
4032 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 2); | |
4033 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 4); | |
4034 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
4035 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4036 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4037 | } | |
4038 | else | |
4039 | { | |
4040 | int index; | |
4041 | ||
4042 | /* IE->LE transition: | |
4043 | mov.l 1f,r0; stc gbr,rN; mov.l @(r0,r12),rM; | |
4044 | bra 2f; add ...; .align 2; 1: x@GOTTPOFF; 2: | |
4045 | We change it into: | |
4046 | mov.l .Ln,rM; stc gbr,rN; nop; ...; | |
4047 | 1: x@TPOFF; 2:. */ | |
4048 | ||
4049 | offset = rel->r_offset; | |
4050 | BFD_ASSERT (offset >= 16); | |
4051 | /* Size of IE instructions is 10 or 12. */ | |
4052 | offset -= 10; | |
4053 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4054 | if ((insn & 0xf0ff) == 0x0012) | |
4055 | { | |
4056 | BFD_ASSERT (offset >= 2); | |
4057 | offset -= 2; | |
4058 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4059 | } | |
4060 | ||
4061 | BFD_ASSERT ((insn & 0xff00) == 0xd000); | |
4062 | index = insn & 0x00ff; | |
4063 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4064 | BFD_ASSERT ((insn & 0xf0ff) == 0x0012); | |
4065 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4066 | BFD_ASSERT ((insn & 0xf0ff) == 0x00ce); | |
4067 | insn = 0xd000 | (insn & 0x0f00) | index; | |
4068 | bfd_put_16 (output_bfd, insn, contents + offset + 0); | |
4069 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
4070 | } | |
4071 | ||
267fb3c1 KK |
4072 | bfd_put_32 (output_bfd, tpoff (info, relocation), |
4073 | contents + rel->r_offset); | |
3376eaf5 KK |
4074 | continue; |
4075 | } | |
4076 | ||
4077 | sgot = htab->sgot; | |
4078 | if (sgot == NULL) | |
4079 | abort (); | |
4080 | ||
4081 | if (h != NULL) | |
4082 | off = h->got.offset; | |
4083 | else | |
4084 | { | |
4085 | if (local_got_offsets == NULL) | |
4086 | abort (); | |
4087 | ||
4088 | off = local_got_offsets[r_symndx]; | |
4089 | } | |
4090 | ||
267fb3c1 KK |
4091 | /* Relocate R_SH_TLS_IE_32 directly when statically linking. */ |
4092 | if (r_type == R_SH_TLS_IE_32 | |
4093 | && ! htab->root.dynamic_sections_created) | |
4094 | { | |
4095 | off &= ~1; | |
4096 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
4097 | sgot->contents + off); | |
4098 | bfd_put_32 (output_bfd, sgot->output_offset + off, | |
4099 | contents + rel->r_offset); | |
4100 | continue; | |
4101 | } | |
4102 | ||
3376eaf5 KK |
4103 | if ((off & 1) != 0) |
4104 | off &= ~1; | |
26e41594 | 4105 | else |
3376eaf5 KK |
4106 | { |
4107 | Elf_Internal_Rela outrel; | |
947216bf | 4108 | bfd_byte *loc; |
3376eaf5 KK |
4109 | int dr_type, indx; |
4110 | ||
4111 | if (srelgot == NULL) | |
4112 | { | |
4113 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
4114 | BFD_ASSERT (srelgot != NULL); | |
4115 | } | |
4116 | ||
4117 | outrel.r_offset = (sgot->output_section->vma | |
4118 | + sgot->output_offset + off); | |
4119 | ||
267fb3c1 | 4120 | if (h == NULL || h->dynindx == -1) |
c95b8a7a KK |
4121 | indx = 0; |
4122 | else | |
4123 | indx = h->dynindx; | |
267fb3c1 | 4124 | |
3376eaf5 KK |
4125 | dr_type = (r_type == R_SH_TLS_GD_32 ? R_SH_TLS_DTPMOD32 : |
4126 | R_SH_TLS_TPOFF32); | |
4127 | if (dr_type == R_SH_TLS_TPOFF32 && indx == 0) | |
4128 | outrel.r_addend = relocation - dtpoff_base (info); | |
4129 | else | |
4130 | outrel.r_addend = 0; | |
4131 | outrel.r_info = ELF32_R_INFO (indx, dr_type); | |
947216bf AM |
4132 | loc = srelgot->contents; |
4133 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
4134 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
4135 | ||
4136 | if (r_type == R_SH_TLS_GD_32) | |
4137 | { | |
4138 | if (indx == 0) | |
4139 | { | |
4140 | bfd_put_32 (output_bfd, | |
4141 | relocation - dtpoff_base (info), | |
4142 | sgot->contents + off + 4); | |
4143 | } | |
4144 | else | |
4145 | { | |
4146 | outrel.r_info = ELF32_R_INFO (indx, | |
4147 | R_SH_TLS_DTPOFF32); | |
4148 | outrel.r_offset += 4; | |
4149 | outrel.r_addend = 0; | |
4150 | srelgot->reloc_count++; | |
947216bf AM |
4151 | loc += sizeof (Elf32_External_Rela); |
4152 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
4153 | } |
4154 | } | |
4155 | ||
4156 | if (h != NULL) | |
4157 | h->got.offset |= 1; | |
4158 | else | |
4159 | local_got_offsets[r_symndx] |= 1; | |
4160 | } | |
4161 | ||
4162 | if (off >= (bfd_vma) -2) | |
4163 | abort (); | |
4164 | ||
4165 | if (r_type == (int) ELF32_R_TYPE (rel->r_info)) | |
4166 | relocation = sgot->output_offset + off; | |
4167 | else | |
4168 | { | |
4169 | bfd_vma offset; | |
4170 | unsigned short insn; | |
4171 | ||
4172 | /* GD->IE transition: | |
4173 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
4174 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
4175 | 1: .long x$TLSGD; 2: .long __tls_get_addr@PLT; 3: | |
4176 | We change it into: | |
4177 | mov.l 1f,r0; stc gbr,r4; mov.l @(r0,r12),r0; add r4,r0; | |
4178 | nop; nop; bra 3f; nop; .align 2; | |
4179 | 1: .long x@TPOFF; 2:...; 3:. */ | |
4180 | ||
4181 | offset = rel->r_offset; | |
4182 | BFD_ASSERT (offset >= 16); | |
4183 | /* Size of GD instructions is 16 or 18. */ | |
4184 | offset -= 16; | |
4185 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4186 | if ((insn & 0xff00) == 0xc700) | |
4187 | { | |
4188 | BFD_ASSERT (offset >= 2); | |
4189 | offset -= 2; | |
4190 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4191 | } | |
4192 | ||
4193 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
4194 | ||
4195 | /* Replace mov.l 1f,R4 with mov.l 1f,r0. */ | |
4196 | bfd_put_16 (output_bfd, insn & 0xf0ff, contents + offset); | |
4197 | ||
4198 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4199 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
4200 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4201 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
4202 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
4203 | BFD_ASSERT (insn == 0x310c); | |
4204 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
4205 | BFD_ASSERT (insn == 0x410b); | |
4206 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
4207 | BFD_ASSERT (insn == 0x34cc); | |
4208 | ||
4209 | bfd_put_16 (output_bfd, 0x0412, contents + offset + 2); | |
4210 | bfd_put_16 (output_bfd, 0x00ce, contents + offset + 4); | |
4211 | bfd_put_16 (output_bfd, 0x304c, contents + offset + 6); | |
4212 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4213 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4214 | ||
4215 | bfd_put_32 (output_bfd, sgot->output_offset + off, | |
4216 | contents + rel->r_offset); | |
4217 | ||
4218 | continue; | |
4219 | } | |
4220 | ||
4221 | addend = rel->r_addend; | |
4222 | ||
4223 | goto final_link_relocate; | |
4224 | ||
4225 | case R_SH_TLS_LD_32: | |
4226 | if (! info->shared) | |
4227 | { | |
4228 | bfd_vma offset; | |
4229 | unsigned short insn; | |
4230 | ||
4231 | /* LD->LE transition: | |
4232 | mov.l 1f,r4; mova 2f,r0; mov.l 2f,r1; add r0,r1; | |
4233 | jsr @r1; add r12,r4; bra 3f; nop; .align 2; | |
4234 | 1: .long x$TLSLD; 2: .long __tls_get_addr@PLT; 3: | |
4235 | We change it into: | |
4236 | stc gbr,r0; nop; nop; nop; | |
4237 | nop; nop; bra 3f; ...; 3:. */ | |
4238 | ||
4239 | offset = rel->r_offset; | |
4240 | BFD_ASSERT (offset >= 16); | |
4241 | /* Size of LD instructions is 16 or 18. */ | |
4242 | offset -= 16; | |
4243 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4244 | if ((insn & 0xff00) == 0xc700) | |
4245 | { | |
4246 | BFD_ASSERT (offset >= 2); | |
4247 | offset -= 2; | |
4248 | insn = bfd_get_16 (input_bfd, contents + offset + 0); | |
4249 | } | |
4250 | ||
4251 | BFD_ASSERT ((insn & 0xff00) == 0xd400); | |
4252 | insn = bfd_get_16 (input_bfd, contents + offset + 2); | |
4253 | BFD_ASSERT ((insn & 0xff00) == 0xc700); | |
4254 | insn = bfd_get_16 (input_bfd, contents + offset + 4); | |
4255 | BFD_ASSERT ((insn & 0xff00) == 0xd100); | |
4256 | insn = bfd_get_16 (input_bfd, contents + offset + 6); | |
4257 | BFD_ASSERT (insn == 0x310c); | |
4258 | insn = bfd_get_16 (input_bfd, contents + offset + 8); | |
4259 | BFD_ASSERT (insn == 0x410b); | |
4260 | insn = bfd_get_16 (input_bfd, contents + offset + 10); | |
4261 | BFD_ASSERT (insn == 0x34cc); | |
4262 | ||
4263 | bfd_put_16 (output_bfd, 0x0012, contents + offset + 0); | |
4264 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 2); | |
4265 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 4); | |
4266 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 6); | |
4267 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 8); | |
4268 | bfd_put_16 (output_bfd, 0x0009, contents + offset + 10); | |
4269 | ||
4270 | continue; | |
4271 | } | |
4272 | ||
4273 | sgot = htab->sgot; | |
4274 | if (sgot == NULL) | |
4275 | abort (); | |
4276 | ||
4277 | off = htab->tls_ldm_got.offset; | |
4278 | if (off & 1) | |
4279 | off &= ~1; | |
4280 | else | |
4281 | { | |
4282 | Elf_Internal_Rela outrel; | |
947216bf | 4283 | bfd_byte *loc; |
3376eaf5 KK |
4284 | |
4285 | srelgot = htab->srelgot; | |
4286 | if (srelgot == NULL) | |
4287 | abort (); | |
4288 | ||
4289 | outrel.r_offset = (sgot->output_section->vma | |
4290 | + sgot->output_offset + off); | |
4291 | outrel.r_addend = 0; | |
4292 | outrel.r_info = ELF32_R_INFO (0, R_SH_TLS_DTPMOD32); | |
947216bf AM |
4293 | loc = srelgot->contents; |
4294 | loc += srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3376eaf5 KK |
4295 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
4296 | htab->tls_ldm_got.offset |= 1; | |
4297 | } | |
4298 | ||
4299 | relocation = sgot->output_offset + off; | |
4300 | addend = rel->r_addend; | |
4301 | ||
4302 | goto final_link_relocate; | |
4303 | ||
4304 | case R_SH_TLS_LDO_32: | |
4305 | if (! info->shared) | |
267fb3c1 | 4306 | relocation = tpoff (info, relocation); |
3376eaf5 KK |
4307 | else |
4308 | relocation -= dtpoff_base (info); | |
4309 | ||
4310 | addend = rel->r_addend; | |
4311 | goto final_link_relocate; | |
4312 | ||
4313 | case R_SH_TLS_LE_32: | |
4314 | { | |
4315 | int indx; | |
4316 | Elf_Internal_Rela outrel; | |
947216bf | 4317 | bfd_byte *loc; |
3376eaf5 | 4318 | |
267fb3c1 KK |
4319 | if (! info->shared) |
4320 | { | |
4321 | relocation = tpoff (info, relocation); | |
4322 | addend = rel->r_addend; | |
4323 | goto final_link_relocate; | |
4324 | } | |
4325 | ||
3376eaf5 KK |
4326 | if (sreloc == NULL) |
4327 | { | |
4328 | const char *name; | |
4329 | ||
4330 | name = (bfd_elf_string_from_elf_section | |
4331 | (input_bfd, | |
4332 | elf_elfheader (input_bfd)->e_shstrndx, | |
4333 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
4334 | if (name == NULL) | |
b34976b6 | 4335 | return FALSE; |
3376eaf5 | 4336 | |
0112cd26 | 4337 | BFD_ASSERT (CONST_STRNEQ (name, ".rela") |
3376eaf5 KK |
4338 | && strcmp (bfd_get_section_name (input_bfd, |
4339 | input_section), | |
4340 | name + 5) == 0); | |
4341 | ||
4342 | sreloc = bfd_get_section_by_name (dynobj, name); | |
4343 | BFD_ASSERT (sreloc != NULL); | |
4344 | } | |
4345 | ||
267fb3c1 KK |
4346 | if (h == NULL || h->dynindx == -1) |
4347 | indx = 0; | |
4348 | else | |
4349 | indx = h->dynindx; | |
4350 | ||
3376eaf5 KK |
4351 | outrel.r_offset = (input_section->output_section->vma |
4352 | + input_section->output_offset | |
4353 | + rel->r_offset); | |
4354 | outrel.r_info = ELF32_R_INFO (indx, R_SH_TLS_TPOFF32); | |
4355 | if (indx == 0) | |
4356 | outrel.r_addend = relocation - dtpoff_base (info); | |
4357 | else | |
4358 | outrel.r_addend = 0; | |
3376eaf5 | 4359 | |
947216bf AM |
4360 | loc = sreloc->contents; |
4361 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
4362 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3376eaf5 KK |
4363 | continue; |
4364 | } | |
37c644f2 AO |
4365 | } |
4366 | ||
146be91a | 4367 | relocation_done: |
37c644f2 AO |
4368 | if (r != bfd_reloc_ok) |
4369 | { | |
4370 | switch (r) | |
4371 | { | |
4372 | default: | |
4373 | case bfd_reloc_outofrange: | |
4374 | abort (); | |
4375 | case bfd_reloc_overflow: | |
4376 | { | |
4377 | const char *name; | |
4378 | ||
4379 | if (h != NULL) | |
dfeffb9f | 4380 | name = NULL; |
37c644f2 AO |
4381 | else |
4382 | { | |
252b5132 RH |
4383 | name = (bfd_elf_string_from_elf_section |
4384 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
4385 | if (name == NULL) | |
b34976b6 | 4386 | return FALSE; |
252b5132 RH |
4387 | if (*name == '\0') |
4388 | name = bfd_section_name (input_bfd, sec); | |
4389 | } | |
4390 | if (! ((*info->callbacks->reloc_overflow) | |
dfeffb9f L |
4391 | (info, (h ? &h->root : NULL), name, howto->name, |
4392 | (bfd_vma) 0, input_bfd, input_section, | |
4393 | rel->r_offset))) | |
b34976b6 | 4394 | return FALSE; |
252b5132 RH |
4395 | } |
4396 | break; | |
4397 | } | |
4398 | } | |
4399 | } | |
4400 | ||
b34976b6 | 4401 | return TRUE; |
252b5132 RH |
4402 | } |
4403 | ||
4404 | /* This is a version of bfd_generic_get_relocated_section_contents | |
4405 | which uses sh_elf_relocate_section. */ | |
4406 | ||
4407 | static bfd_byte * | |
09fd220b KK |
4408 | sh_elf_get_relocated_section_contents (bfd *output_bfd, |
4409 | struct bfd_link_info *link_info, | |
4410 | struct bfd_link_order *link_order, | |
4411 | bfd_byte *data, | |
4412 | bfd_boolean relocatable, | |
4413 | asymbol **symbols) | |
252b5132 RH |
4414 | { |
4415 | Elf_Internal_Shdr *symtab_hdr; | |
4416 | asection *input_section = link_order->u.indirect.section; | |
4417 | bfd *input_bfd = input_section->owner; | |
4418 | asection **sections = NULL; | |
4419 | Elf_Internal_Rela *internal_relocs = NULL; | |
6cdc0ccc | 4420 | Elf_Internal_Sym *isymbuf = NULL; |
252b5132 RH |
4421 | |
4422 | /* We only need to handle the case of relaxing, or of having a | |
4423 | particular set of section contents, specially. */ | |
1049f94e | 4424 | if (relocatable |
252b5132 RH |
4425 | || elf_section_data (input_section)->this_hdr.contents == NULL) |
4426 | return bfd_generic_get_relocated_section_contents (output_bfd, link_info, | |
4427 | link_order, data, | |
1049f94e | 4428 | relocatable, |
252b5132 RH |
4429 | symbols); |
4430 | ||
0ffa91dd | 4431 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
252b5132 RH |
4432 | |
4433 | memcpy (data, elf_section_data (input_section)->this_hdr.contents, | |
eea6121a | 4434 | (size_t) input_section->size); |
252b5132 RH |
4435 | |
4436 | if ((input_section->flags & SEC_RELOC) != 0 | |
4437 | && input_section->reloc_count > 0) | |
4438 | { | |
252b5132 | 4439 | asection **secpp; |
6cdc0ccc | 4440 | Elf_Internal_Sym *isym, *isymend; |
9ad5cbcf | 4441 | bfd_size_type amt; |
252b5132 | 4442 | |
45d6a902 | 4443 | internal_relocs = (_bfd_elf_link_read_relocs |
09fd220b | 4444 | (input_bfd, input_section, NULL, |
b34976b6 | 4445 | (Elf_Internal_Rela *) NULL, FALSE)); |
252b5132 RH |
4446 | if (internal_relocs == NULL) |
4447 | goto error_return; | |
4448 | ||
6cdc0ccc AM |
4449 | if (symtab_hdr->sh_info != 0) |
4450 | { | |
4451 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
4452 | if (isymbuf == NULL) | |
4453 | isymbuf = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, | |
4454 | symtab_hdr->sh_info, 0, | |
4455 | NULL, NULL, NULL); | |
4456 | if (isymbuf == NULL) | |
4457 | goto error_return; | |
4458 | } | |
252b5132 | 4459 | |
9ad5cbcf AM |
4460 | amt = symtab_hdr->sh_info; |
4461 | amt *= sizeof (asection *); | |
4462 | sections = (asection **) bfd_malloc (amt); | |
4463 | if (sections == NULL && amt != 0) | |
252b5132 RH |
4464 | goto error_return; |
4465 | ||
6cdc0ccc AM |
4466 | isymend = isymbuf + symtab_hdr->sh_info; |
4467 | for (isym = isymbuf, secpp = sections; isym < isymend; ++isym, ++secpp) | |
252b5132 RH |
4468 | { |
4469 | asection *isec; | |
4470 | ||
6cdc0ccc | 4471 | if (isym->st_shndx == SHN_UNDEF) |
252b5132 | 4472 | isec = bfd_und_section_ptr; |
6cdc0ccc | 4473 | else if (isym->st_shndx == SHN_ABS) |
252b5132 | 4474 | isec = bfd_abs_section_ptr; |
6cdc0ccc | 4475 | else if (isym->st_shndx == SHN_COMMON) |
252b5132 RH |
4476 | isec = bfd_com_section_ptr; |
4477 | else | |
6cdc0ccc | 4478 | isec = bfd_section_from_elf_index (input_bfd, isym->st_shndx); |
252b5132 RH |
4479 | |
4480 | *secpp = isec; | |
4481 | } | |
4482 | ||
4483 | if (! sh_elf_relocate_section (output_bfd, link_info, input_bfd, | |
4484 | input_section, data, internal_relocs, | |
6cdc0ccc | 4485 | isymbuf, sections)) |
252b5132 RH |
4486 | goto error_return; |
4487 | ||
4488 | if (sections != NULL) | |
4489 | free (sections); | |
6cdc0ccc AM |
4490 | if (isymbuf != NULL |
4491 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
4492 | free (isymbuf); | |
4493 | if (elf_section_data (input_section)->relocs != internal_relocs) | |
252b5132 | 4494 | free (internal_relocs); |
252b5132 RH |
4495 | } |
4496 | ||
4497 | return data; | |
4498 | ||
4499 | error_return: | |
252b5132 RH |
4500 | if (sections != NULL) |
4501 | free (sections); | |
6cdc0ccc AM |
4502 | if (isymbuf != NULL |
4503 | && symtab_hdr->contents != (unsigned char *) isymbuf) | |
4504 | free (isymbuf); | |
4505 | if (internal_relocs != NULL | |
4506 | && elf_section_data (input_section)->relocs != internal_relocs) | |
4507 | free (internal_relocs); | |
252b5132 RH |
4508 | return NULL; |
4509 | } | |
917583ad | 4510 | |
3376eaf5 KK |
4511 | /* Return the base VMA address which should be subtracted from real addresses |
4512 | when resolving @dtpoff relocation. | |
4513 | This is PT_TLS segment p_vaddr. */ | |
4514 | ||
4515 | static bfd_vma | |
09fd220b | 4516 | dtpoff_base (struct bfd_link_info *info) |
3376eaf5 | 4517 | { |
e1918d23 AM |
4518 | /* If tls_sec is NULL, we should have signalled an error already. */ |
4519 | if (elf_hash_table (info)->tls_sec == NULL) | |
267fb3c1 | 4520 | return 0; |
e1918d23 | 4521 | return elf_hash_table (info)->tls_sec->vma; |
3376eaf5 KK |
4522 | } |
4523 | ||
267fb3c1 KK |
4524 | /* Return the relocation value for R_SH_TLS_TPOFF32.. */ |
4525 | ||
4526 | static bfd_vma | |
09fd220b | 4527 | tpoff (struct bfd_link_info *info, bfd_vma address) |
267fb3c1 | 4528 | { |
e1918d23 AM |
4529 | /* If tls_sec is NULL, we should have signalled an error already. */ |
4530 | if (elf_hash_table (info)->tls_sec == NULL) | |
267fb3c1 KK |
4531 | return 0; |
4532 | /* SH TLS ABI is variant I and static TLS block start just after tcbhead | |
4533 | structure which has 2 pointer fields. */ | |
044ad7e3 KK |
4534 | return (address - elf_hash_table (info)->tls_sec->vma |
4535 | + align_power ((bfd_vma) 8, | |
4536 | elf_hash_table (info)->tls_sec->alignment_power)); | |
267fb3c1 KK |
4537 | } |
4538 | ||
252b5132 | 4539 | static asection * |
09fd220b | 4540 | sh_elf_gc_mark_hook (asection *sec, |
07adf181 AM |
4541 | struct bfd_link_info *info, |
4542 | Elf_Internal_Rela *rel, | |
4543 | struct elf_link_hash_entry *h, | |
09fd220b | 4544 | Elf_Internal_Sym *sym) |
252b5132 RH |
4545 | { |
4546 | if (h != NULL) | |
07adf181 AM |
4547 | switch (ELF32_R_TYPE (rel->r_info)) |
4548 | { | |
4549 | case R_SH_GNU_VTINHERIT: | |
4550 | case R_SH_GNU_VTENTRY: | |
4551 | return NULL; | |
4552 | } | |
9ad5cbcf | 4553 | |
07adf181 | 4554 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
252b5132 RH |
4555 | } |
4556 | ||
37c644f2 AO |
4557 | /* Update the got entry reference counts for the section being removed. */ |
4558 | ||
b34976b6 | 4559 | static bfd_boolean |
09fd220b KK |
4560 | sh_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
4561 | asection *sec, const Elf_Internal_Rela *relocs) | |
252b5132 | 4562 | { |
067653c5 AM |
4563 | Elf_Internal_Shdr *symtab_hdr; |
4564 | struct elf_link_hash_entry **sym_hashes; | |
4565 | bfd_signed_vma *local_got_refcounts; | |
4566 | const Elf_Internal_Rela *rel, *relend; | |
067653c5 | 4567 | |
7dda2462 TG |
4568 | if (info->relocatable) |
4569 | return TRUE; | |
4570 | ||
067653c5 AM |
4571 | elf_section_data (sec)->local_dynrel = NULL; |
4572 | ||
0ffa91dd | 4573 | symtab_hdr = &elf_symtab_hdr (abfd); |
067653c5 AM |
4574 | sym_hashes = elf_sym_hashes (abfd); |
4575 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
4576 | ||
4577 | relend = relocs + sec->reloc_count; | |
4578 | for (rel = relocs; rel < relend; rel++) | |
396a6083 | 4579 | { |
26e41594 AM |
4580 | unsigned long r_symndx; |
4581 | unsigned int r_type; | |
4582 | struct elf_link_hash_entry *h = NULL; | |
396a6083 SC |
4583 | #ifdef INCLUDE_SHMEDIA |
4584 | int seen_stt_datalabel = 0; | |
4585 | #endif | |
3376eaf5 | 4586 | |
396a6083 | 4587 | r_symndx = ELF32_R_SYM (rel->r_info); |
26e41594 | 4588 | if (r_symndx >= symtab_hdr->sh_info) |
396a6083 | 4589 | { |
26e41594 AM |
4590 | struct elf_sh_link_hash_entry *eh; |
4591 | struct elf_sh_dyn_relocs **pp; | |
4592 | struct elf_sh_dyn_relocs *p; | |
4593 | ||
396a6083 | 4594 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
396a6083 SC |
4595 | while (h->root.type == bfd_link_hash_indirect |
4596 | || h->root.type == bfd_link_hash_warning) | |
4597 | { | |
3eb128b2 | 4598 | #ifdef INCLUDE_SHMEDIA |
396a6083 | 4599 | seen_stt_datalabel |= h->type == STT_DATALABEL; |
3eb128b2 | 4600 | #endif |
396a6083 SC |
4601 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
4602 | } | |
26e41594 AM |
4603 | eh = (struct elf_sh_link_hash_entry *) h; |
4604 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
4605 | if (p->sec == sec) | |
4606 | { | |
4607 | /* Everything must go for SEC. */ | |
4608 | *pp = p->next; | |
4609 | break; | |
4610 | } | |
396a6083 | 4611 | } |
067653c5 | 4612 | |
26e41594 AM |
4613 | r_type = ELF32_R_TYPE (rel->r_info); |
4614 | switch (sh_elf_optimized_tls_reloc (info, r_type, h != NULL)) | |
396a6083 SC |
4615 | { |
4616 | case R_SH_TLS_LD_32: | |
4617 | if (sh_elf_hash_table (info)->tls_ldm_got.refcount > 0) | |
4618 | sh_elf_hash_table (info)->tls_ldm_got.refcount -= 1; | |
4619 | break; | |
4620 | ||
4621 | case R_SH_GOT32: | |
4622 | case R_SH_GOTOFF: | |
4623 | case R_SH_GOTPC: | |
4624 | #ifdef INCLUDE_SHMEDIA | |
4625 | case R_SH_GOT_LOW16: | |
4626 | case R_SH_GOT_MEDLOW16: | |
4627 | case R_SH_GOT_MEDHI16: | |
4628 | case R_SH_GOT_HI16: | |
4629 | case R_SH_GOT10BY4: | |
4630 | case R_SH_GOT10BY8: | |
4631 | case R_SH_GOTOFF_LOW16: | |
4632 | case R_SH_GOTOFF_MEDLOW16: | |
4633 | case R_SH_GOTOFF_MEDHI16: | |
4634 | case R_SH_GOTOFF_HI16: | |
4635 | case R_SH_GOTPC_LOW16: | |
4636 | case R_SH_GOTPC_MEDLOW16: | |
4637 | case R_SH_GOTPC_MEDHI16: | |
4638 | case R_SH_GOTPC_HI16: | |
4639 | #endif | |
4640 | case R_SH_TLS_GD_32: | |
4641 | case R_SH_TLS_IE_32: | |
4642 | if (h != NULL) | |
4643 | { | |
4644 | #ifdef INCLUDE_SHMEDIA | |
4645 | if (seen_stt_datalabel) | |
4646 | { | |
26e41594 AM |
4647 | struct elf_sh_link_hash_entry *eh; |
4648 | eh = (struct elf_sh_link_hash_entry *) h; | |
396a6083 SC |
4649 | if (eh->datalabel_got.refcount > 0) |
4650 | eh->datalabel_got.refcount -= 1; | |
4651 | } | |
4652 | else | |
4653 | #endif | |
4654 | if (h->got.refcount > 0) | |
4655 | h->got.refcount -= 1; | |
4656 | } | |
4657 | else if (local_got_refcounts != NULL) | |
4658 | { | |
4659 | #ifdef INCLUDE_SHMEDIA | |
4660 | if (rel->r_addend & 1) | |
4661 | { | |
4662 | if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0) | |
4663 | local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1; | |
4664 | } | |
4665 | else | |
4666 | #endif | |
4667 | if (local_got_refcounts[r_symndx] > 0) | |
4668 | local_got_refcounts[r_symndx] -= 1; | |
4669 | } | |
4670 | break; | |
4671 | ||
4672 | case R_SH_DIR32: | |
4673 | case R_SH_REL32: | |
26e41594 AM |
4674 | if (info->shared) |
4675 | break; | |
4676 | /* Fall thru */ | |
396a6083 SC |
4677 | |
4678 | case R_SH_PLT32: | |
4679 | #ifdef INCLUDE_SHMEDIA | |
4680 | case R_SH_PLT_LOW16: | |
4681 | case R_SH_PLT_MEDLOW16: | |
4682 | case R_SH_PLT_MEDHI16: | |
4683 | case R_SH_PLT_HI16: | |
4684 | #endif | |
4685 | if (h != NULL) | |
4686 | { | |
4687 | if (h->plt.refcount > 0) | |
4688 | h->plt.refcount -= 1; | |
4689 | } | |
4690 | break; | |
067653c5 | 4691 | |
396a6083 SC |
4692 | case R_SH_GOTPLT32: |
4693 | #ifdef INCLUDE_SHMEDIA | |
4694 | case R_SH_GOTPLT_LOW16: | |
4695 | case R_SH_GOTPLT_MEDLOW16: | |
4696 | case R_SH_GOTPLT_MEDHI16: | |
4697 | case R_SH_GOTPLT_HI16: | |
4698 | case R_SH_GOTPLT10BY4: | |
4699 | case R_SH_GOTPLT10BY8: | |
4700 | #endif | |
4701 | if (h != NULL) | |
4702 | { | |
26e41594 AM |
4703 | struct elf_sh_link_hash_entry *eh; |
4704 | eh = (struct elf_sh_link_hash_entry *) h; | |
396a6083 | 4705 | if (eh->gotplt_refcount > 0) |
067653c5 | 4706 | { |
396a6083 SC |
4707 | eh->gotplt_refcount -= 1; |
4708 | if (h->plt.refcount > 0) | |
4709 | h->plt.refcount -= 1; | |
067653c5 | 4710 | } |
067653c5 | 4711 | #ifdef INCLUDE_SHMEDIA |
396a6083 SC |
4712 | else if (seen_stt_datalabel) |
4713 | { | |
4714 | if (eh->datalabel_got.refcount > 0) | |
4715 | eh->datalabel_got.refcount -= 1; | |
4716 | } | |
067653c5 | 4717 | #endif |
396a6083 SC |
4718 | else if (h->got.refcount > 0) |
4719 | h->got.refcount -= 1; | |
4720 | } | |
4721 | else if (local_got_refcounts != NULL) | |
4722 | { | |
067653c5 | 4723 | #ifdef INCLUDE_SHMEDIA |
396a6083 SC |
4724 | if (rel->r_addend & 1) |
4725 | { | |
4726 | if (local_got_refcounts[symtab_hdr->sh_info + r_symndx] > 0) | |
4727 | local_got_refcounts[symtab_hdr->sh_info + r_symndx] -= 1; | |
4728 | } | |
4729 | else | |
067653c5 | 4730 | #endif |
396a6083 SC |
4731 | if (local_got_refcounts[r_symndx] > 0) |
4732 | local_got_refcounts[r_symndx] -= 1; | |
4733 | } | |
4734 | break; | |
067653c5 | 4735 | |
396a6083 SC |
4736 | default: |
4737 | break; | |
4738 | } | |
4739 | } | |
067653c5 | 4740 | |
b34976b6 | 4741 | return TRUE; |
252b5132 RH |
4742 | } |
4743 | ||
067653c5 AM |
4744 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
4745 | ||
4746 | static void | |
fcfa13d2 | 4747 | sh_elf_copy_indirect_symbol (struct bfd_link_info *info, |
09fd220b KK |
4748 | struct elf_link_hash_entry *dir, |
4749 | struct elf_link_hash_entry *ind) | |
067653c5 AM |
4750 | { |
4751 | struct elf_sh_link_hash_entry *edir, *eind; | |
4752 | ||
4753 | edir = (struct elf_sh_link_hash_entry *) dir; | |
4754 | eind = (struct elf_sh_link_hash_entry *) ind; | |
4755 | ||
4756 | if (eind->dyn_relocs != NULL) | |
4757 | { | |
4758 | if (edir->dyn_relocs != NULL) | |
4759 | { | |
4760 | struct elf_sh_dyn_relocs **pp; | |
4761 | struct elf_sh_dyn_relocs *p; | |
4762 | ||
fcfa13d2 | 4763 | /* Add reloc counts against the indirect sym to the direct sym |
067653c5 AM |
4764 | list. Merge any entries against the same section. */ |
4765 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
4766 | { | |
4767 | struct elf_sh_dyn_relocs *q; | |
4768 | ||
4769 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
4770 | if (q->sec == p->sec) | |
4771 | { | |
4772 | q->pc_count += p->pc_count; | |
4773 | q->count += p->count; | |
4774 | *pp = p->next; | |
4775 | break; | |
4776 | } | |
4777 | if (q == NULL) | |
4778 | pp = &p->next; | |
4779 | } | |
4780 | *pp = edir->dyn_relocs; | |
4781 | } | |
4782 | ||
4783 | edir->dyn_relocs = eind->dyn_relocs; | |
4784 | eind->dyn_relocs = NULL; | |
4785 | } | |
4989d792 SC |
4786 | edir->gotplt_refcount = eind->gotplt_refcount; |
4787 | eind->gotplt_refcount = 0; | |
396a6083 | 4788 | #ifdef INCLUDE_SHMEDIA |
fcfa13d2 AM |
4789 | edir->datalabel_got.refcount += eind->datalabel_got.refcount; |
4790 | eind->datalabel_got.refcount = 0; | |
396a6083 | 4791 | #endif |
067653c5 | 4792 | |
3376eaf5 KK |
4793 | if (ind->root.type == bfd_link_hash_indirect |
4794 | && dir->got.refcount <= 0) | |
4795 | { | |
4796 | edir->tls_type = eind->tls_type; | |
4797 | eind->tls_type = GOT_UNKNOWN; | |
4798 | } | |
4799 | ||
04e534c3 | 4800 | if (ind->root.type != bfd_link_hash_indirect |
f5385ebf AM |
4801 | && dir->dynamic_adjusted) |
4802 | { | |
4803 | /* If called to transfer flags for a weakdef during processing | |
4804 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
4805 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
4806 | dir->ref_dynamic |= ind->ref_dynamic; | |
4807 | dir->ref_regular |= ind->ref_regular; | |
4808 | dir->ref_regular_nonweak |= ind->ref_regular_nonweak; | |
4809 | dir->needs_plt |= ind->needs_plt; | |
4810 | } | |
04e534c3 | 4811 | else |
fcfa13d2 | 4812 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
067653c5 AM |
4813 | } |
4814 | ||
3376eaf5 | 4815 | static int |
09fd220b KK |
4816 | sh_elf_optimized_tls_reloc (struct bfd_link_info *info, int r_type, |
4817 | int is_local) | |
3376eaf5 KK |
4818 | { |
4819 | if (info->shared) | |
4820 | return r_type; | |
4821 | ||
4822 | switch (r_type) | |
4823 | { | |
4824 | case R_SH_TLS_GD_32: | |
4825 | case R_SH_TLS_IE_32: | |
4826 | if (is_local) | |
4827 | return R_SH_TLS_LE_32; | |
4828 | return R_SH_TLS_IE_32; | |
4829 | case R_SH_TLS_LD_32: | |
4830 | return R_SH_TLS_LE_32; | |
4831 | } | |
4832 | ||
4833 | return r_type; | |
4834 | } | |
4835 | ||
252b5132 RH |
4836 | /* Look through the relocs for a section during the first phase. |
4837 | Since we don't do .gots or .plts, we just need to consider the | |
4838 | virtual table relocs for gc. */ | |
435b1e90 | 4839 | |
b34976b6 | 4840 | static bfd_boolean |
09fd220b KK |
4841 | sh_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, asection *sec, |
4842 | const Elf_Internal_Rela *relocs) | |
252b5132 RH |
4843 | { |
4844 | Elf_Internal_Shdr *symtab_hdr; | |
5582a088 | 4845 | struct elf_link_hash_entry **sym_hashes; |
067653c5 | 4846 | struct elf_sh_link_hash_table *htab; |
252b5132 RH |
4847 | const Elf_Internal_Rela *rel; |
4848 | const Elf_Internal_Rela *rel_end; | |
37c644f2 AO |
4849 | bfd_vma *local_got_offsets; |
4850 | asection *sgot; | |
4851 | asection *srelgot; | |
4852 | asection *sreloc; | |
3376eaf5 KK |
4853 | unsigned int r_type; |
4854 | int tls_type, old_tls_type; | |
435b1e90 | 4855 | |
37c644f2 AO |
4856 | sgot = NULL; |
4857 | srelgot = NULL; | |
4858 | sreloc = NULL; | |
4859 | ||
1049f94e | 4860 | if (info->relocatable) |
b34976b6 | 4861 | return TRUE; |
435b1e90 | 4862 | |
0ffa91dd NC |
4863 | BFD_ASSERT (is_sh_elf (abfd)); |
4864 | ||
4865 | symtab_hdr = &elf_symtab_hdr (abfd); | |
252b5132 | 4866 | sym_hashes = elf_sym_hashes (abfd); |
435b1e90 | 4867 | |
067653c5 | 4868 | htab = sh_elf_hash_table (info); |
37c644f2 AO |
4869 | local_got_offsets = elf_local_got_offsets (abfd); |
4870 | ||
252b5132 RH |
4871 | rel_end = relocs + sec->reloc_count; |
4872 | for (rel = relocs; rel < rel_end; rel++) | |
4873 | { | |
4874 | struct elf_link_hash_entry *h; | |
4875 | unsigned long r_symndx; | |
396a6083 SC |
4876 | #ifdef INCLUDE_SHMEDIA |
4877 | int seen_stt_datalabel = 0; | |
4878 | #endif | |
435b1e90 | 4879 | |
252b5132 | 4880 | r_symndx = ELF32_R_SYM (rel->r_info); |
3376eaf5 KK |
4881 | r_type = ELF32_R_TYPE (rel->r_info); |
4882 | ||
252b5132 | 4883 | if (r_symndx < symtab_hdr->sh_info) |
435b1e90 | 4884 | h = NULL; |
252b5132 | 4885 | else |
396a6083 SC |
4886 | { |
4887 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
396a6083 SC |
4888 | while (h->root.type == bfd_link_hash_indirect |
4889 | || h->root.type == bfd_link_hash_warning) | |
4890 | { | |
973a3492 | 4891 | #ifdef INCLUDE_SHMEDIA |
396a6083 | 4892 | seen_stt_datalabel |= h->type == STT_DATALABEL; |
973a3492 | 4893 | #endif |
396a6083 SC |
4894 | h = (struct elf_link_hash_entry *) h->root.u.i.link; |
4895 | } | |
396a6083 | 4896 | } |
435b1e90 | 4897 | |
3376eaf5 KK |
4898 | r_type = sh_elf_optimized_tls_reloc (info, r_type, h == NULL); |
4899 | if (! info->shared | |
4900 | && r_type == R_SH_TLS_IE_32 | |
4901 | && h != NULL | |
4902 | && h->root.type != bfd_link_hash_undefined | |
4903 | && h->root.type != bfd_link_hash_undefweak | |
4904 | && (h->dynindx == -1 | |
f5385ebf | 4905 | || h->def_regular)) |
3376eaf5 KK |
4906 | r_type = R_SH_TLS_LE_32; |
4907 | ||
37c644f2 | 4908 | /* Some relocs require a global offset table. */ |
067653c5 | 4909 | if (htab->sgot == NULL) |
37c644f2 | 4910 | { |
3376eaf5 | 4911 | switch (r_type) |
37c644f2 | 4912 | { |
fbca6ad9 | 4913 | case R_SH_GOTPLT32: |
37c644f2 AO |
4914 | case R_SH_GOT32: |
4915 | case R_SH_GOTOFF: | |
4916 | case R_SH_GOTPC: | |
fbca6ad9 AO |
4917 | #ifdef INCLUDE_SHMEDIA |
4918 | case R_SH_GOTPLT_LOW16: | |
4919 | case R_SH_GOTPLT_MEDLOW16: | |
4920 | case R_SH_GOTPLT_MEDHI16: | |
4921 | case R_SH_GOTPLT_HI16: | |
4922 | case R_SH_GOTPLT10BY4: | |
4923 | case R_SH_GOTPLT10BY8: | |
4924 | case R_SH_GOT_LOW16: | |
4925 | case R_SH_GOT_MEDLOW16: | |
4926 | case R_SH_GOT_MEDHI16: | |
4927 | case R_SH_GOT_HI16: | |
4928 | case R_SH_GOT10BY4: | |
4929 | case R_SH_GOT10BY8: | |
4930 | case R_SH_GOTOFF_LOW16: | |
4931 | case R_SH_GOTOFF_MEDLOW16: | |
4932 | case R_SH_GOTOFF_MEDHI16: | |
4933 | case R_SH_GOTOFF_HI16: | |
4934 | case R_SH_GOTPC_LOW16: | |
4935 | case R_SH_GOTPC_MEDLOW16: | |
4936 | case R_SH_GOTPC_MEDHI16: | |
4937 | case R_SH_GOTPC_HI16: | |
4938 | #endif | |
3376eaf5 KK |
4939 | case R_SH_TLS_GD_32: |
4940 | case R_SH_TLS_LD_32: | |
4941 | case R_SH_TLS_IE_32: | |
2293c499 AM |
4942 | if (htab->sgot == NULL) |
4943 | { | |
4944 | if (htab->root.dynobj == NULL) | |
4945 | htab->root.dynobj = abfd; | |
4946 | if (!create_got_section (htab->root.dynobj, info)) | |
4947 | return FALSE; | |
4948 | } | |
37c644f2 AO |
4949 | break; |
4950 | ||
4951 | default: | |
4952 | break; | |
4953 | } | |
4954 | } | |
4955 | ||
3376eaf5 | 4956 | switch (r_type) |
067653c5 AM |
4957 | { |
4958 | /* This relocation describes the C++ object vtable hierarchy. | |
4959 | Reconstruct it for later use during GC. */ | |
435b1e90 | 4960 | case R_SH_GNU_VTINHERIT: |
c152c796 | 4961 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
b34976b6 | 4962 | return FALSE; |
435b1e90 KH |
4963 | break; |
4964 | ||
067653c5 AM |
4965 | /* This relocation describes which C++ vtable entries are actually |
4966 | used. Record for later use during GC. */ | |
435b1e90 | 4967 | case R_SH_GNU_VTENTRY: |
d17e0c6e JB |
4968 | BFD_ASSERT (h != NULL); |
4969 | if (h != NULL | |
4970 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
b34976b6 | 4971 | return FALSE; |
435b1e90 | 4972 | break; |
37c644f2 | 4973 | |
3376eaf5 KK |
4974 | case R_SH_TLS_IE_32: |
4975 | if (info->shared) | |
4976 | info->flags |= DF_STATIC_TLS; | |
4977 | ||
4978 | /* FALLTHROUGH */ | |
267fb3c1 | 4979 | force_got: |
3376eaf5 | 4980 | case R_SH_TLS_GD_32: |
37c644f2 | 4981 | case R_SH_GOT32: |
fbca6ad9 AO |
4982 | #ifdef INCLUDE_SHMEDIA |
4983 | case R_SH_GOT_LOW16: | |
4984 | case R_SH_GOT_MEDLOW16: | |
4985 | case R_SH_GOT_MEDHI16: | |
4986 | case R_SH_GOT_HI16: | |
4987 | case R_SH_GOT10BY4: | |
4988 | case R_SH_GOT10BY8: | |
4989 | #endif | |
3376eaf5 KK |
4990 | switch (r_type) |
4991 | { | |
4992 | default: | |
4993 | tls_type = GOT_NORMAL; | |
4994 | break; | |
4995 | case R_SH_TLS_GD_32: | |
4996 | tls_type = GOT_TLS_GD; | |
4997 | break; | |
4998 | case R_SH_TLS_IE_32: | |
4999 | tls_type = GOT_TLS_IE; | |
5000 | break; | |
5001 | } | |
5002 | ||
37c644f2 | 5003 | if (h != NULL) |
3376eaf5 | 5004 | { |
396a6083 SC |
5005 | #ifdef INCLUDE_SHMEDIA |
5006 | if (seen_stt_datalabel) | |
5007 | { | |
b34976b6 AM |
5008 | struct elf_sh_link_hash_entry *eh |
5009 | = (struct elf_sh_link_hash_entry *) h; | |
396a6083 SC |
5010 | |
5011 | eh->datalabel_got.refcount += 1; | |
5012 | } | |
5013 | else | |
5014 | #endif | |
5015 | h->got.refcount += 1; | |
3376eaf5 KK |
5016 | old_tls_type = sh_elf_hash_entry (h)->tls_type; |
5017 | } | |
37c644f2 AO |
5018 | else |
5019 | { | |
067653c5 AM |
5020 | bfd_signed_vma *local_got_refcounts; |
5021 | ||
435b1e90 | 5022 | /* This is a global offset table entry for a local |
067653c5 AM |
5023 | symbol. */ |
5024 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
5025 | if (local_got_refcounts == NULL) | |
37c644f2 | 5026 | { |
dc810e39 | 5027 | bfd_size_type size; |
37c644f2 | 5028 | |
dc810e39 | 5029 | size = symtab_hdr->sh_info; |
067653c5 | 5030 | size *= sizeof (bfd_signed_vma); |
fbca6ad9 AO |
5031 | #ifdef INCLUDE_SHMEDIA |
5032 | /* Reserve space for both the datalabel and | |
5033 | codelabel local GOT offsets. */ | |
5034 | size *= 2; | |
5035 | #endif | |
3376eaf5 | 5036 | size += symtab_hdr->sh_info; |
067653c5 AM |
5037 | local_got_refcounts = ((bfd_signed_vma *) |
5038 | bfd_zalloc (abfd, size)); | |
5039 | if (local_got_refcounts == NULL) | |
b34976b6 | 5040 | return FALSE; |
067653c5 | 5041 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
3376eaf5 KK |
5042 | #ifdef INCLUDE_SHMEDIA |
5043 | /* Take care of both the datalabel and codelabel local | |
5044 | GOT offsets. */ | |
5045 | sh_elf_local_got_tls_type (abfd) | |
5046 | = (char *) (local_got_refcounts + 2 * symtab_hdr->sh_info); | |
5047 | #else | |
5048 | sh_elf_local_got_tls_type (abfd) | |
5049 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
5050 | #endif | |
37c644f2 | 5051 | } |
396a6083 SC |
5052 | #ifdef INCLUDE_SHMEDIA |
5053 | if (rel->r_addend & 1) | |
5054 | local_got_refcounts[symtab_hdr->sh_info + r_symndx] += 1; | |
5055 | else | |
5056 | #endif | |
5057 | local_got_refcounts[r_symndx] += 1; | |
3376eaf5 KK |
5058 | old_tls_type = sh_elf_local_got_tls_type (abfd) [r_symndx]; |
5059 | } | |
5060 | ||
5061 | /* If a TLS symbol is accessed using IE at least once, | |
5062 | there is no point to use dynamic model for it. */ | |
5063 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
5064 | && (old_tls_type != GOT_TLS_GD || tls_type != GOT_TLS_IE)) | |
5065 | { | |
5066 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
5067 | tls_type = GOT_TLS_IE; | |
5068 | else | |
5069 | { | |
5070 | (*_bfd_error_handler) | |
d003868e AM |
5071 | (_("%B: `%s' accessed both as normal and thread local symbol"), |
5072 | abfd, h->root.root.string); | |
b34976b6 | 5073 | return FALSE; |
3376eaf5 KK |
5074 | } |
5075 | } | |
5076 | ||
5077 | if (old_tls_type != tls_type) | |
5078 | { | |
5079 | if (h != NULL) | |
5080 | sh_elf_hash_entry (h)->tls_type = tls_type; | |
5081 | else | |
5082 | sh_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
37c644f2 | 5083 | } |
3376eaf5 KK |
5084 | |
5085 | break; | |
5086 | ||
5087 | case R_SH_TLS_LD_32: | |
5088 | sh_elf_hash_table(info)->tls_ldm_got.refcount += 1; | |
37c644f2 AO |
5089 | break; |
5090 | ||
fbca6ad9 AO |
5091 | case R_SH_GOTPLT32: |
5092 | #ifdef INCLUDE_SHMEDIA | |
5093 | case R_SH_GOTPLT_LOW16: | |
5094 | case R_SH_GOTPLT_MEDLOW16: | |
5095 | case R_SH_GOTPLT_MEDHI16: | |
5096 | case R_SH_GOTPLT_HI16: | |
5097 | case R_SH_GOTPLT10BY4: | |
5098 | case R_SH_GOTPLT10BY8: | |
5099 | #endif | |
5100 | /* If this is a local symbol, we resolve it directly without | |
5101 | creating a procedure linkage table entry. */ | |
5102 | ||
5103 | if (h == NULL | |
f5385ebf | 5104 | || h->forced_local |
fbca6ad9 AO |
5105 | || ! info->shared |
5106 | || info->symbolic | |
067653c5 | 5107 | || h->dynindx == -1) |
fbca6ad9 AO |
5108 | goto force_got; |
5109 | ||
f5385ebf | 5110 | h->needs_plt = 1; |
067653c5 | 5111 | h->plt.refcount += 1; |
4989d792 | 5112 | ((struct elf_sh_link_hash_entry *) h)->gotplt_refcount += 1; |
fbca6ad9 AO |
5113 | |
5114 | break; | |
5115 | ||
37c644f2 | 5116 | case R_SH_PLT32: |
fbca6ad9 AO |
5117 | #ifdef INCLUDE_SHMEDIA |
5118 | case R_SH_PLT_LOW16: | |
5119 | case R_SH_PLT_MEDLOW16: | |
5120 | case R_SH_PLT_MEDHI16: | |
5121 | case R_SH_PLT_HI16: | |
5122 | #endif | |
37c644f2 AO |
5123 | /* This symbol requires a procedure linkage table entry. We |
5124 | actually build the entry in adjust_dynamic_symbol, | |
5125 | because this might be a case of linking PIC code which is | |
5126 | never referenced by a dynamic object, in which case we | |
5127 | don't need to generate a procedure linkage table entry | |
5128 | after all. */ | |
5129 | ||
5130 | /* If this is a local symbol, we resolve it directly without | |
5131 | creating a procedure linkage table entry. */ | |
5132 | if (h == NULL) | |
5133 | continue; | |
5134 | ||
f5385ebf | 5135 | if (h->forced_local) |
37c644f2 AO |
5136 | break; |
5137 | ||
f5385ebf | 5138 | h->needs_plt = 1; |
067653c5 | 5139 | h->plt.refcount += 1; |
37c644f2 AO |
5140 | break; |
5141 | ||
5142 | case R_SH_DIR32: | |
5143 | case R_SH_REL32: | |
46e993b9 KK |
5144 | #ifdef INCLUDE_SHMEDIA |
5145 | case R_SH_IMM_LOW16_PCREL: | |
5146 | case R_SH_IMM_MEDLOW16_PCREL: | |
5147 | case R_SH_IMM_MEDHI16_PCREL: | |
5148 | case R_SH_IMM_HI16_PCREL: | |
5149 | #endif | |
067653c5 AM |
5150 | if (h != NULL && ! info->shared) |
5151 | { | |
f5385ebf | 5152 | h->non_got_ref = 1; |
067653c5 AM |
5153 | h->plt.refcount += 1; |
5154 | } | |
37c644f2 AO |
5155 | |
5156 | /* If we are creating a shared library, and this is a reloc | |
5157 | against a global symbol, or a non PC relative reloc | |
5158 | against a local symbol, then we need to copy the reloc | |
5159 | into the shared library. However, if we are linking with | |
5160 | -Bsymbolic, we do not need to copy a reloc against a | |
5161 | global symbol which is defined in an object we are | |
5162 | including in the link (i.e., DEF_REGULAR is set). At | |
5163 | this point we have not seen all the input files, so it is | |
5164 | possible that DEF_REGULAR is not set now but will be set | |
5165 | later (it is never cleared). We account for that | |
5166 | possibility below by storing information in the | |
067653c5 AM |
5167 | dyn_relocs field of the hash table entry. A similar |
5168 | situation occurs when creating shared libraries and symbol | |
5169 | visibility changes render the symbol local. | |
5170 | ||
5171 | If on the other hand, we are creating an executable, we | |
5172 | may need to keep relocations for symbols satisfied by a | |
5173 | dynamic library if we manage to avoid copy relocs for the | |
5174 | symbol. */ | |
5175 | if ((info->shared | |
5176 | && (sec->flags & SEC_ALLOC) != 0 | |
3376eaf5 | 5177 | && (r_type != R_SH_REL32 |
067653c5 AM |
5178 | || (h != NULL |
5179 | && (! info->symbolic | |
5180 | || h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5181 | || !h->def_regular)))) |
067653c5 AM |
5182 | || (! info->shared |
5183 | && (sec->flags & SEC_ALLOC) != 0 | |
5184 | && h != NULL | |
5185 | && (h->root.type == bfd_link_hash_defweak | |
f5385ebf | 5186 | || !h->def_regular))) |
37c644f2 | 5187 | { |
067653c5 AM |
5188 | struct elf_sh_dyn_relocs *p; |
5189 | struct elf_sh_dyn_relocs **head; | |
5190 | ||
2293c499 AM |
5191 | if (htab->root.dynobj == NULL) |
5192 | htab->root.dynobj = abfd; | |
067653c5 | 5193 | |
37c644f2 AO |
5194 | /* When creating a shared object, we must copy these |
5195 | reloc types into the output file. We create a reloc | |
5196 | section in dynobj and make room for this reloc. */ | |
5197 | if (sreloc == NULL) | |
5198 | { | |
5199 | const char *name; | |
5200 | ||
5201 | name = (bfd_elf_string_from_elf_section | |
5202 | (abfd, | |
5203 | elf_elfheader (abfd)->e_shstrndx, | |
5204 | elf_section_data (sec)->rel_hdr.sh_name)); | |
5205 | if (name == NULL) | |
b34976b6 | 5206 | return FALSE; |
37c644f2 | 5207 | |
0112cd26 | 5208 | BFD_ASSERT (CONST_STRNEQ (name, ".rela") |
37c644f2 AO |
5209 | && strcmp (bfd_get_section_name (abfd, sec), |
5210 | name + 5) == 0); | |
5211 | ||
2293c499 | 5212 | sreloc = bfd_get_section_by_name (htab->root.dynobj, name); |
37c644f2 AO |
5213 | if (sreloc == NULL) |
5214 | { | |
5215 | flagword flags; | |
5216 | ||
37c644f2 AO |
5217 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
5218 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
5219 | if ((sec->flags & SEC_ALLOC) != 0) | |
5220 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
5221 | sreloc = bfd_make_section_with_flags (htab->root.dynobj, |
5222 | name, | |
5223 | flags); | |
37c644f2 | 5224 | if (sreloc == NULL |
2293c499 AM |
5225 | || ! bfd_set_section_alignment (htab->root.dynobj, |
5226 | sreloc, 2)) | |
b34976b6 | 5227 | return FALSE; |
37c644f2 | 5228 | } |
067653c5 | 5229 | elf_section_data (sec)->sreloc = sreloc; |
37c644f2 AO |
5230 | } |
5231 | ||
067653c5 AM |
5232 | /* If this is a global symbol, we count the number of |
5233 | relocations we need for this symbol. */ | |
5234 | if (h != NULL) | |
5235 | head = &((struct elf_sh_link_hash_entry *) h)->dyn_relocs; | |
5236 | else | |
37c644f2 | 5237 | { |
067653c5 | 5238 | asection *s; |
6edfbbad | 5239 | void *vpp; |
37c644f2 | 5240 | |
067653c5 AM |
5241 | /* Track dynamic relocs needed for local syms too. */ |
5242 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
5243 | sec, r_symndx); | |
5244 | if (s == NULL) | |
b34976b6 | 5245 | return FALSE; |
37c644f2 | 5246 | |
6edfbbad DJ |
5247 | vpp = &elf_section_data (s)->local_dynrel; |
5248 | head = (struct elf_sh_dyn_relocs **) vpp; | |
067653c5 | 5249 | } |
37c644f2 | 5250 | |
067653c5 AM |
5251 | p = *head; |
5252 | if (p == NULL || p->sec != sec) | |
5253 | { | |
5254 | bfd_size_type amt = sizeof (*p); | |
2293c499 | 5255 | p = bfd_alloc (htab->root.dynobj, amt); |
37c644f2 | 5256 | if (p == NULL) |
b34976b6 | 5257 | return FALSE; |
067653c5 AM |
5258 | p->next = *head; |
5259 | *head = p; | |
5260 | p->sec = sec; | |
5261 | p->count = 0; | |
5262 | p->pc_count = 0; | |
37c644f2 | 5263 | } |
067653c5 AM |
5264 | |
5265 | p->count += 1; | |
46e993b9 KK |
5266 | if (r_type == R_SH_REL32 |
5267 | #ifdef INCLUDE_SHMEDIA | |
5268 | || r_type == R_SH_IMM_LOW16_PCREL | |
5269 | || r_type == R_SH_IMM_MEDLOW16_PCREL | |
5270 | || r_type == R_SH_IMM_MEDHI16_PCREL | |
5271 | || r_type == R_SH_IMM_HI16_PCREL | |
5272 | #endif | |
5273 | ) | |
067653c5 | 5274 | p->pc_count += 1; |
37c644f2 AO |
5275 | } |
5276 | ||
5277 | break; | |
3376eaf5 KK |
5278 | |
5279 | case R_SH_TLS_LE_32: | |
5280 | if (info->shared) | |
5281 | { | |
d003868e AM |
5282 | (*_bfd_error_handler) |
5283 | (_("%B: TLS local exec code cannot be linked into shared objects"), | |
5284 | abfd); | |
b34976b6 | 5285 | return FALSE; |
3376eaf5 KK |
5286 | } |
5287 | ||
267fb3c1 | 5288 | break; |
3376eaf5 | 5289 | |
3376eaf5 | 5290 | case R_SH_TLS_LDO_32: |
267fb3c1 | 5291 | /* Nothing to do. */ |
3376eaf5 KK |
5292 | break; |
5293 | ||
5294 | default: | |
5295 | break; | |
435b1e90 | 5296 | } |
252b5132 | 5297 | } |
435b1e90 | 5298 | |
b34976b6 | 5299 | return TRUE; |
252b5132 RH |
5300 | } |
5301 | ||
fbca6ad9 | 5302 | #ifndef sh_elf_set_mach_from_flags |
f6f9408f JR |
5303 | static unsigned int sh_ef_bfd_table[] = { EF_SH_BFD_TABLE }; |
5304 | ||
b34976b6 | 5305 | static bfd_boolean |
09fd220b | 5306 | sh_elf_set_mach_from_flags (bfd *abfd) |
d4845d57 | 5307 | { |
f6f9408f JR |
5308 | flagword flags = elf_elfheader (abfd)->e_flags & EF_SH_MACH_MASK; |
5309 | ||
5310 | if (flags >= sizeof(sh_ef_bfd_table)) | |
5311 | return FALSE; | |
5312 | ||
5313 | if (sh_ef_bfd_table[flags] == 0) | |
5314 | return FALSE; | |
5315 | ||
5316 | bfd_default_set_arch_mach (abfd, bfd_arch_sh, sh_ef_bfd_table[flags]); | |
d4845d57 | 5317 | |
b34976b6 | 5318 | return TRUE; |
d4845d57 | 5319 | } |
f6f9408f JR |
5320 | |
5321 | ||
5322 | /* Reverse table lookup for sh_ef_bfd_table[]. | |
5323 | Given a bfd MACH value from archures.c | |
5324 | return the equivalent ELF flags from the table. | |
5325 | Return -1 if no match is found. */ | |
5326 | ||
5327 | int | |
5328 | sh_elf_get_flags_from_mach (unsigned long mach) | |
5329 | { | |
4195f552 | 5330 | int i = ARRAY_SIZE (sh_ef_bfd_table) - 1; |
f6f9408f JR |
5331 | |
5332 | for (; i>0; i--) | |
5333 | if (sh_ef_bfd_table[i] == mach) | |
5334 | return i; | |
5335 | ||
5336 | /* shouldn't get here */ | |
5337 | BFD_FAIL(); | |
5338 | ||
5339 | return -1; | |
5340 | } | |
fbca6ad9 | 5341 | #endif /* not sh_elf_set_mach_from_flags */ |
d4845d57 | 5342 | |
fbca6ad9 | 5343 | #ifndef sh_elf_set_private_flags |
435b1e90 KH |
5344 | /* Function to keep SH specific file flags. */ |
5345 | ||
b34976b6 | 5346 | static bfd_boolean |
09fd220b | 5347 | sh_elf_set_private_flags (bfd *abfd, flagword flags) |
d4845d57 JR |
5348 | { |
5349 | BFD_ASSERT (! elf_flags_init (abfd) | |
5350 | || elf_elfheader (abfd)->e_flags == flags); | |
5351 | ||
5352 | elf_elfheader (abfd)->e_flags = flags; | |
b34976b6 | 5353 | elf_flags_init (abfd) = TRUE; |
d4845d57 JR |
5354 | return sh_elf_set_mach_from_flags (abfd); |
5355 | } | |
fbca6ad9 | 5356 | #endif /* not sh_elf_set_private_flags */ |
d4845d57 | 5357 | |
fbca6ad9 | 5358 | #ifndef sh_elf_copy_private_data |
d4845d57 | 5359 | /* Copy backend specific data from one object module to another */ |
435b1e90 | 5360 | |
b34976b6 | 5361 | static bfd_boolean |
09fd220b | 5362 | sh_elf_copy_private_data (bfd * ibfd, bfd * obfd) |
d4845d57 | 5363 | { |
104d59d1 JM |
5364 | /* Copy object attributes. */ |
5365 | _bfd_elf_copy_obj_attributes (ibfd, obfd); | |
5366 | ||
0ffa91dd NC |
5367 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
5368 | return TRUE; | |
5369 | ||
d4845d57 JR |
5370 | return sh_elf_set_private_flags (obfd, elf_elfheader (ibfd)->e_flags); |
5371 | } | |
fbca6ad9 | 5372 | #endif /* not sh_elf_copy_private_data */ |
d4845d57 | 5373 | |
fbca6ad9 | 5374 | #ifndef sh_elf_merge_private_data |
d4845d57 | 5375 | |
f6f9408f JR |
5376 | /* This function returns the ELF architecture number that |
5377 | corresponds to the given arch_sh* flags. */ | |
85fbca6a | 5378 | |
f6f9408f JR |
5379 | int |
5380 | sh_find_elf_flags (unsigned int arch_set) | |
d4845d57 | 5381 | { |
85fbca6a | 5382 | extern unsigned long sh_get_bfd_mach_from_arch_set (unsigned int); |
f6f9408f | 5383 | unsigned long bfd_mach = sh_get_bfd_mach_from_arch_set (arch_set); |
d4845d57 | 5384 | |
f6f9408f JR |
5385 | return sh_elf_get_flags_from_mach (bfd_mach); |
5386 | } | |
f6f9408f JR |
5387 | |
5388 | /* This routine initialises the elf flags when required and | |
5389 | calls sh_merge_bfd_arch() to check dsp/fpu compatibility. */ | |
d4845d57 | 5390 | |
f6f9408f JR |
5391 | static bfd_boolean |
5392 | sh_elf_merge_private_data (bfd *ibfd, bfd *obfd) | |
5393 | { | |
85fbca6a NC |
5394 | extern bfd_boolean sh_merge_bfd_arch (bfd *, bfd *); |
5395 | ||
0ffa91dd | 5396 | if (! is_sh_elf (ibfd) || ! is_sh_elf (obfd)) |
b34976b6 | 5397 | return TRUE; |
d4845d57 JR |
5398 | |
5399 | if (! elf_flags_init (obfd)) | |
5400 | { | |
a39b79b9 | 5401 | /* This happens when ld starts out with a 'blank' output file. */ |
b34976b6 | 5402 | elf_flags_init (obfd) = TRUE; |
a39b79b9 | 5403 | elf_elfheader (obfd)->e_flags = EF_SH1; |
f6f9408f | 5404 | sh_elf_set_mach_from_flags (obfd); |
d4845d57 | 5405 | } |
d4845d57 | 5406 | |
85fbca6a | 5407 | if (! sh_merge_bfd_arch (ibfd, obfd)) |
1d70c7fb | 5408 | { |
d003868e | 5409 | _bfd_error_handler ("%B: uses instructions which are incompatible " |
1d70c7fb | 5410 | "with instructions used in previous modules", |
d003868e | 5411 | ibfd); |
1d70c7fb AO |
5412 | bfd_set_error (bfd_error_bad_value); |
5413 | return FALSE; | |
5414 | } | |
f6f9408f JR |
5415 | |
5416 | elf_elfheader (obfd)->e_flags = | |
5417 | sh_elf_get_flags_from_mach (bfd_get_mach (obfd)); | |
5418 | ||
5419 | return TRUE; | |
d4845d57 | 5420 | } |
fbca6ad9 | 5421 | #endif /* not sh_elf_merge_private_data */ |
d4845d57 | 5422 | |
3376eaf5 KK |
5423 | /* Override the generic function because we need to store sh_elf_obj_tdata |
5424 | as the specific tdata. We set also the machine architecture from flags | |
5425 | here. */ | |
5426 | ||
b34976b6 | 5427 | static bfd_boolean |
09fd220b | 5428 | sh_elf_object_p (bfd *abfd) |
3376eaf5 | 5429 | { |
66becf32 | 5430 | return sh_elf_set_mach_from_flags (abfd); |
3376eaf5 KK |
5431 | } |
5432 | ||
37c644f2 AO |
5433 | /* Finish up dynamic symbol handling. We set the contents of various |
5434 | dynamic sections here. */ | |
5435 | ||
b34976b6 | 5436 | static bfd_boolean |
09fd220b KK |
5437 | sh_elf_finish_dynamic_symbol (bfd *output_bfd, struct bfd_link_info *info, |
5438 | struct elf_link_hash_entry *h, | |
5439 | Elf_Internal_Sym *sym) | |
37c644f2 | 5440 | { |
067653c5 | 5441 | struct elf_sh_link_hash_table *htab; |
37c644f2 | 5442 | |
067653c5 | 5443 | htab = sh_elf_hash_table (info); |
37c644f2 AO |
5444 | |
5445 | if (h->plt.offset != (bfd_vma) -1) | |
5446 | { | |
5447 | asection *splt; | |
5448 | asection *sgot; | |
5449 | asection *srel; | |
5450 | ||
5451 | bfd_vma plt_index; | |
5452 | bfd_vma got_offset; | |
5453 | Elf_Internal_Rela rel; | |
947216bf | 5454 | bfd_byte *loc; |
37c644f2 AO |
5455 | |
5456 | /* This symbol has an entry in the procedure linkage table. Set | |
5457 | it up. */ | |
5458 | ||
5459 | BFD_ASSERT (h->dynindx != -1); | |
5460 | ||
067653c5 AM |
5461 | splt = htab->splt; |
5462 | sgot = htab->sgotplt; | |
5463 | srel = htab->srelplt; | |
37c644f2 AO |
5464 | BFD_ASSERT (splt != NULL && sgot != NULL && srel != NULL); |
5465 | ||
5466 | /* Get the index in the procedure linkage table which | |
5467 | corresponds to this symbol. This is the index of this symbol | |
5468 | in all the symbols for which we are making plt entries. The | |
5469 | first entry in the procedure linkage table is reserved. */ | |
55e6e397 | 5470 | plt_index = get_plt_index (htab->plt_info, h->plt.offset); |
37c644f2 AO |
5471 | |
5472 | /* Get the offset into the .got table of the entry that | |
5473 | corresponds to this function. Each .got entry is 4 bytes. | |
5474 | The first three are reserved. */ | |
5475 | got_offset = (plt_index + 3) * 4; | |
5476 | ||
fbca6ad9 | 5477 | #ifdef GOT_BIAS |
c8614e8e AM |
5478 | if (info->shared) |
5479 | got_offset -= GOT_BIAS; | |
fbca6ad9 AO |
5480 | #endif |
5481 | ||
37c644f2 | 5482 | /* Fill in the entry in the procedure linkage table. */ |
55e6e397 RS |
5483 | memcpy (splt->contents + h->plt.offset, |
5484 | htab->plt_info->symbol_entry, | |
5485 | htab->plt_info->symbol_entry_size); | |
5486 | ||
5487 | if (info->shared) | |
5488 | install_plt_field (output_bfd, FALSE, got_offset, | |
5489 | (splt->contents | |
5490 | + h->plt.offset | |
5491 | + htab->plt_info->symbol_fields.got_entry)); | |
5492 | else | |
37c644f2 | 5493 | { |
55e6e397 | 5494 | install_plt_field (output_bfd, FALSE, |
fbca6ad9 AO |
5495 | (sgot->output_section->vma |
5496 | + sgot->output_offset | |
5497 | + got_offset), | |
55e6e397 RS |
5498 | (splt->contents |
5499 | + h->plt.offset | |
5500 | + htab->plt_info->symbol_fields.got_entry)); | |
5501 | if (htab->vxworks_p) | |
37c644f2 | 5502 | { |
55e6e397 RS |
5503 | unsigned int reachable_plts, plts_per_4k; |
5504 | int distance; | |
5505 | ||
5506 | /* Divide the PLT into groups. The first group contains | |
5507 | REACHABLE_PLTS entries and the other groups contain | |
5508 | PLTS_PER_4K entries. Entries in the first group can | |
5509 | branch directly to .plt; those in later groups branch | |
5510 | to the last element of the previous group. */ | |
5511 | /* ??? It would be better to create multiple copies of | |
5512 | the common resolver stub. */ | |
5513 | reachable_plts = ((4096 | |
5514 | - htab->plt_info->plt0_entry_size | |
5515 | - (htab->plt_info->symbol_fields.plt + 4)) | |
5516 | / htab->plt_info->symbol_entry_size) + 1; | |
5517 | plts_per_4k = (4096 / htab->plt_info->symbol_entry_size); | |
5518 | if (plt_index < reachable_plts) | |
5519 | distance = -(h->plt.offset | |
5520 | + htab->plt_info->symbol_fields.plt); | |
5521 | else | |
5522 | distance = -(((plt_index - reachable_plts) % plts_per_4k + 1) | |
5523 | * htab->plt_info->symbol_entry_size); | |
5524 | ||
5525 | /* Install the 'bra' with this offset. */ | |
5526 | bfd_put_16 (output_bfd, | |
5527 | 0xa000 | (0x0fff & ((distance - 4) / 2)), | |
5528 | (splt->contents | |
5529 | + h->plt.offset | |
5530 | + htab->plt_info->symbol_fields.plt)); | |
37c644f2 | 5531 | } |
55e6e397 RS |
5532 | else |
5533 | install_plt_field (output_bfd, TRUE, | |
5534 | splt->output_section->vma + splt->output_offset, | |
5535 | (splt->contents | |
5536 | + h->plt.offset | |
5537 | + htab->plt_info->symbol_fields.plt)); | |
37c644f2 AO |
5538 | } |
5539 | ||
fbca6ad9 | 5540 | #ifdef GOT_BIAS |
c8614e8e AM |
5541 | if (info->shared) |
5542 | got_offset += GOT_BIAS; | |
fbca6ad9 AO |
5543 | #endif |
5544 | ||
55e6e397 | 5545 | install_plt_field (output_bfd, FALSE, |
fbca6ad9 | 5546 | plt_index * sizeof (Elf32_External_Rela), |
55e6e397 RS |
5547 | (splt->contents |
5548 | + h->plt.offset | |
5549 | + htab->plt_info->symbol_fields.reloc_offset)); | |
37c644f2 AO |
5550 | |
5551 | /* Fill in the entry in the global offset table. */ | |
5552 | bfd_put_32 (output_bfd, | |
5553 | (splt->output_section->vma | |
5554 | + splt->output_offset | |
5555 | + h->plt.offset | |
55e6e397 | 5556 | + htab->plt_info->symbol_resolve_offset), |
37c644f2 AO |
5557 | sgot->contents + got_offset); |
5558 | ||
5559 | /* Fill in the entry in the .rela.plt section. */ | |
5560 | rel.r_offset = (sgot->output_section->vma | |
5561 | + sgot->output_offset | |
5562 | + got_offset); | |
5563 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_JMP_SLOT); | |
5564 | rel.r_addend = 0; | |
fbca6ad9 AO |
5565 | #ifdef GOT_BIAS |
5566 | rel.r_addend = GOT_BIAS; | |
5567 | #endif | |
947216bf AM |
5568 | loc = srel->contents + plt_index * sizeof (Elf32_External_Rela); |
5569 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
37c644f2 | 5570 | |
55e6e397 RS |
5571 | if (htab->vxworks_p && !info->shared) |
5572 | { | |
5573 | /* Create the .rela.plt.unloaded relocations for this PLT entry. | |
5574 | Begin by pointing LOC to the first such relocation. */ | |
5575 | loc = (htab->srelplt2->contents | |
5576 | + (plt_index * 2 + 1) * sizeof (Elf32_External_Rela)); | |
5577 | ||
5578 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation | |
5579 | for the PLT entry's pointer to the .got.plt entry. */ | |
5580 | rel.r_offset = (htab->splt->output_section->vma | |
5581 | + htab->splt->output_offset | |
5582 | + h->plt.offset | |
5583 | + htab->plt_info->symbol_fields.got_entry); | |
5584 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); | |
5585 | rel.r_addend = got_offset; | |
5586 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
5587 | loc += sizeof (Elf32_External_Rela); | |
5588 | ||
5589 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for | |
5590 | the .got.plt entry, which initially points to .plt. */ | |
5591 | rel.r_offset = (htab->sgotplt->output_section->vma | |
5592 | + htab->sgotplt->output_offset | |
5593 | + got_offset); | |
5594 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, R_SH_DIR32); | |
5595 | rel.r_addend = 0; | |
5596 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
5597 | } | |
5598 | ||
f5385ebf | 5599 | if (!h->def_regular) |
37c644f2 AO |
5600 | { |
5601 | /* Mark the symbol as undefined, rather than as defined in | |
5602 | the .plt section. Leave the value alone. */ | |
5603 | sym->st_shndx = SHN_UNDEF; | |
5604 | } | |
5605 | } | |
5606 | ||
3376eaf5 KK |
5607 | if (h->got.offset != (bfd_vma) -1 |
5608 | && sh_elf_hash_entry (h)->tls_type != GOT_TLS_GD | |
5609 | && sh_elf_hash_entry (h)->tls_type != GOT_TLS_IE) | |
37c644f2 AO |
5610 | { |
5611 | asection *sgot; | |
5612 | asection *srel; | |
5613 | Elf_Internal_Rela rel; | |
947216bf | 5614 | bfd_byte *loc; |
37c644f2 AO |
5615 | |
5616 | /* This symbol has an entry in the global offset table. Set it | |
5617 | up. */ | |
5618 | ||
067653c5 AM |
5619 | sgot = htab->sgot; |
5620 | srel = htab->srelgot; | |
37c644f2 AO |
5621 | BFD_ASSERT (sgot != NULL && srel != NULL); |
5622 | ||
5623 | rel.r_offset = (sgot->output_section->vma | |
5624 | + sgot->output_offset | |
dc810e39 | 5625 | + (h->got.offset &~ (bfd_vma) 1)); |
37c644f2 | 5626 | |
067653c5 AM |
5627 | /* If this is a static link, or it is a -Bsymbolic link and the |
5628 | symbol is defined locally or was forced to be local because | |
5629 | of a version file, we just want to emit a RELATIVE reloc. | |
37c644f2 AO |
5630 | The entry in the global offset table will already have been |
5631 | initialized in the relocate_section function. */ | |
5632 | if (info->shared | |
3d85aebe | 5633 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
37c644f2 AO |
5634 | { |
5635 | rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
5636 | rel.r_addend = (h->root.u.def.value | |
5637 | + h->root.u.def.section->output_section->vma | |
5638 | + h->root.u.def.section->output_offset); | |
5639 | } | |
5640 | else | |
5641 | { | |
5642 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
5643 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT); | |
5644 | rel.r_addend = 0; | |
5645 | } | |
5646 | ||
947216bf AM |
5647 | loc = srel->contents; |
5648 | loc += srel->reloc_count++ * sizeof (Elf32_External_Rela); | |
5649 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
37c644f2 AO |
5650 | } |
5651 | ||
396a6083 SC |
5652 | #ifdef INCLUDE_SHMEDIA |
5653 | { | |
5654 | struct elf_sh_link_hash_entry *eh; | |
5655 | ||
5656 | eh = (struct elf_sh_link_hash_entry *) h; | |
5657 | if (eh->datalabel_got.offset != (bfd_vma) -1) | |
5658 | { | |
5659 | asection *sgot; | |
5660 | asection *srel; | |
5661 | Elf_Internal_Rela rel; | |
947216bf | 5662 | bfd_byte *loc; |
396a6083 SC |
5663 | |
5664 | /* This symbol has a datalabel entry in the global offset table. | |
5665 | Set it up. */ | |
5666 | ||
5667 | sgot = htab->sgot; | |
5668 | srel = htab->srelgot; | |
5669 | BFD_ASSERT (sgot != NULL && srel != NULL); | |
5670 | ||
5671 | rel.r_offset = (sgot->output_section->vma | |
5672 | + sgot->output_offset | |
5673 | + (eh->datalabel_got.offset &~ (bfd_vma) 1)); | |
5674 | ||
5675 | /* If this is a static link, or it is a -Bsymbolic link and the | |
5676 | symbol is defined locally or was forced to be local because | |
5677 | of a version file, we just want to emit a RELATIVE reloc. | |
5678 | The entry in the global offset table will already have been | |
5679 | initialized in the relocate_section function. */ | |
5680 | if (info->shared | |
3d85aebe | 5681 | && SYMBOL_REFERENCES_LOCAL (info, h)) |
396a6083 SC |
5682 | { |
5683 | rel.r_info = ELF32_R_INFO (0, R_SH_RELATIVE); | |
5684 | rel.r_addend = (h->root.u.def.value | |
5685 | + h->root.u.def.section->output_section->vma | |
5686 | + h->root.u.def.section->output_offset); | |
5687 | } | |
5688 | else | |
5689 | { | |
5690 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents | |
5691 | + eh->datalabel_got.offset); | |
5692 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_GLOB_DAT); | |
5693 | rel.r_addend = 0; | |
5694 | } | |
5695 | ||
947216bf AM |
5696 | loc = srel->contents; |
5697 | loc += srel->reloc_count++ * sizeof (Elf32_External_Rela); | |
5698 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
396a6083 SC |
5699 | } |
5700 | } | |
5701 | #endif | |
5702 | ||
f5385ebf | 5703 | if (h->needs_copy) |
37c644f2 AO |
5704 | { |
5705 | asection *s; | |
5706 | Elf_Internal_Rela rel; | |
947216bf | 5707 | bfd_byte *loc; |
37c644f2 AO |
5708 | |
5709 | /* This symbol needs a copy reloc. Set it up. */ | |
5710 | ||
5711 | BFD_ASSERT (h->dynindx != -1 | |
5712 | && (h->root.type == bfd_link_hash_defined | |
5713 | || h->root.type == bfd_link_hash_defweak)); | |
5714 | ||
5715 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
5716 | ".rela.bss"); | |
5717 | BFD_ASSERT (s != NULL); | |
5718 | ||
5719 | rel.r_offset = (h->root.u.def.value | |
5720 | + h->root.u.def.section->output_section->vma | |
5721 | + h->root.u.def.section->output_offset); | |
5722 | rel.r_info = ELF32_R_INFO (h->dynindx, R_SH_COPY); | |
5723 | rel.r_addend = 0; | |
947216bf AM |
5724 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
5725 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
37c644f2 AO |
5726 | } |
5727 | ||
55e6e397 RS |
5728 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. On VxWorks, |
5729 | _GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the | |
5730 | ".got" section. */ | |
37c644f2 | 5731 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 |
55e6e397 | 5732 | || (!htab->vxworks_p && h == htab->root.hgot)) |
37c644f2 AO |
5733 | sym->st_shndx = SHN_ABS; |
5734 | ||
b34976b6 | 5735 | return TRUE; |
37c644f2 AO |
5736 | } |
5737 | ||
5738 | /* Finish up the dynamic sections. */ | |
5739 | ||
b34976b6 | 5740 | static bfd_boolean |
09fd220b | 5741 | sh_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info) |
37c644f2 | 5742 | { |
067653c5 | 5743 | struct elf_sh_link_hash_table *htab; |
37c644f2 AO |
5744 | asection *sgot; |
5745 | asection *sdyn; | |
5746 | ||
067653c5 | 5747 | htab = sh_elf_hash_table (info); |
067653c5 | 5748 | sgot = htab->sgotplt; |
2293c499 | 5749 | sdyn = bfd_get_section_by_name (htab->root.dynobj, ".dynamic"); |
37c644f2 | 5750 | |
067653c5 | 5751 | if (htab->root.dynamic_sections_created) |
37c644f2 AO |
5752 | { |
5753 | asection *splt; | |
5754 | Elf32_External_Dyn *dyncon, *dynconend; | |
5755 | ||
067653c5 | 5756 | BFD_ASSERT (sgot != NULL && sdyn != NULL); |
37c644f2 AO |
5757 | |
5758 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 5759 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
37c644f2 AO |
5760 | for (; dyncon < dynconend; dyncon++) |
5761 | { | |
5762 | Elf_Internal_Dyn dyn; | |
37c644f2 | 5763 | asection *s; |
067653c5 AM |
5764 | #ifdef INCLUDE_SHMEDIA |
5765 | const char *name; | |
5766 | #endif | |
37c644f2 | 5767 | |
2293c499 | 5768 | bfd_elf32_swap_dyn_in (htab->root.dynobj, dyncon, &dyn); |
37c644f2 AO |
5769 | |
5770 | switch (dyn.d_tag) | |
5771 | { | |
5772 | default: | |
7a2b07ff NS |
5773 | if (htab->vxworks_p |
5774 | && elf_vxworks_finish_dynamic_entry (output_bfd, &dyn)) | |
5775 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
37c644f2 AO |
5776 | break; |
5777 | ||
3b587c71 AM |
5778 | #ifdef INCLUDE_SHMEDIA |
5779 | case DT_INIT: | |
5780 | name = info->init_function; | |
5781 | goto get_sym; | |
5782 | ||
5783 | case DT_FINI: | |
5784 | name = info->fini_function; | |
5785 | get_sym: | |
5786 | if (dyn.d_un.d_val != 0) | |
5787 | { | |
067653c5 AM |
5788 | struct elf_link_hash_entry *h; |
5789 | ||
5790 | h = elf_link_hash_lookup (&htab->root, name, | |
b34976b6 | 5791 | FALSE, FALSE, TRUE); |
3b587c71 AM |
5792 | if (h != NULL && (h->other & STO_SH5_ISA32)) |
5793 | { | |
5794 | dyn.d_un.d_val |= 1; | |
5795 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5796 | } | |
5797 | } | |
5798 | break; | |
5799 | #endif | |
5800 | ||
37c644f2 | 5801 | case DT_PLTGOT: |
067653c5 | 5802 | s = htab->sgot->output_section; |
37c644f2 AO |
5803 | goto get_vma; |
5804 | ||
5805 | case DT_JMPREL: | |
067653c5 | 5806 | s = htab->srelplt->output_section; |
37c644f2 | 5807 | get_vma: |
37c644f2 AO |
5808 | BFD_ASSERT (s != NULL); |
5809 | dyn.d_un.d_ptr = s->vma; | |
5810 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5811 | break; | |
5812 | ||
5813 | case DT_PLTRELSZ: | |
067653c5 | 5814 | s = htab->srelplt->output_section; |
37c644f2 | 5815 | BFD_ASSERT (s != NULL); |
eea6121a | 5816 | dyn.d_un.d_val = s->size; |
37c644f2 AO |
5817 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
5818 | break; | |
5819 | ||
5820 | case DT_RELASZ: | |
5821 | /* My reading of the SVR4 ABI indicates that the | |
5822 | procedure linkage table relocs (DT_JMPREL) should be | |
5823 | included in the overall relocs (DT_RELA). This is | |
5824 | what Solaris does. However, UnixWare can not handle | |
5825 | that case. Therefore, we override the DT_RELASZ entry | |
5826 | here to make it not include the JMPREL relocs. Since | |
5827 | the linker script arranges for .rela.plt to follow all | |
5828 | other relocation sections, we don't have to worry | |
5829 | about changing the DT_RELA entry. */ | |
067653c5 | 5830 | if (htab->srelplt != NULL) |
37c644f2 | 5831 | { |
067653c5 | 5832 | s = htab->srelplt->output_section; |
eea6121a | 5833 | dyn.d_un.d_val -= s->size; |
37c644f2 AO |
5834 | } |
5835 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
5836 | break; | |
5837 | } | |
5838 | } | |
5839 | ||
5840 | /* Fill in the first entry in the procedure linkage table. */ | |
067653c5 | 5841 | splt = htab->splt; |
55e6e397 | 5842 | if (splt && splt->size > 0 && htab->plt_info->plt0_entry) |
37c644f2 | 5843 | { |
55e6e397 RS |
5844 | unsigned int i; |
5845 | ||
5846 | memcpy (splt->contents, | |
5847 | htab->plt_info->plt0_entry, | |
5848 | htab->plt_info->plt0_entry_size); | |
5849 | for (i = 0; i < ARRAY_SIZE (htab->plt_info->plt0_got_fields); i++) | |
5850 | if (htab->plt_info->plt0_got_fields[i] != MINUS_ONE) | |
5851 | install_plt_field (output_bfd, FALSE, | |
5852 | (sgot->output_section->vma | |
5853 | + sgot->output_offset | |
5854 | + (i * 4)), | |
5855 | (splt->contents | |
5856 | + htab->plt_info->plt0_got_fields[i])); | |
5857 | ||
5858 | if (htab->vxworks_p) | |
37c644f2 | 5859 | { |
55e6e397 RS |
5860 | /* Finalize the .rela.plt.unloaded contents. */ |
5861 | Elf_Internal_Rela rel; | |
5862 | bfd_byte *loc; | |
5863 | ||
5864 | /* Create a .rela.plt.unloaded R_SH_DIR32 relocation for the | |
5865 | first PLT entry's pointer to _GLOBAL_OFFSET_TABLE_ + 8. */ | |
5866 | loc = htab->srelplt2->contents; | |
5867 | rel.r_offset = (splt->output_section->vma | |
5868 | + splt->output_offset | |
5869 | + htab->plt_info->plt0_got_fields[2]); | |
5870 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, R_SH_DIR32); | |
5871 | rel.r_addend = 8; | |
5872 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
5873 | loc += sizeof (Elf32_External_Rela); | |
5874 | ||
5875 | /* Fix up the remaining .rela.plt.unloaded relocations. | |
5876 | They may have the wrong symbol index for _G_O_T_ or | |
5877 | _P_L_T_ depending on the order in which symbols were | |
5878 | output. */ | |
5879 | while (loc < htab->srelplt2->contents + htab->srelplt2->size) | |
37c644f2 | 5880 | { |
55e6e397 RS |
5881 | /* The PLT entry's pointer to the .got.plt slot. */ |
5882 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
5883 | rel.r_info = ELF32_R_INFO (htab->root.hgot->indx, | |
5884 | R_SH_DIR32); | |
5885 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
5886 | loc += sizeof (Elf32_External_Rela); | |
5887 | ||
5888 | /* The .got.plt slot's pointer to .plt. */ | |
5889 | bfd_elf32_swap_reloc_in (output_bfd, loc, &rel); | |
5890 | rel.r_info = ELF32_R_INFO (htab->root.hplt->indx, | |
5891 | R_SH_DIR32); | |
5892 | bfd_elf32_swap_reloc_out (output_bfd, &rel, loc); | |
5893 | loc += sizeof (Elf32_External_Rela); | |
37c644f2 | 5894 | } |
37c644f2 AO |
5895 | } |
5896 | ||
5897 | /* UnixWare sets the entsize of .plt to 4, although that doesn't | |
5898 | really seem like the right value. */ | |
5899 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
5900 | } | |
5901 | } | |
5902 | ||
5903 | /* Fill in the first three entries in the global offset table. */ | |
eea6121a | 5904 | if (sgot && sgot->size > 0) |
37c644f2 AO |
5905 | { |
5906 | if (sdyn == NULL) | |
5907 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
5908 | else | |
5909 | bfd_put_32 (output_bfd, | |
5910 | sdyn->output_section->vma + sdyn->output_offset, | |
5911 | sgot->contents); | |
5912 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
5913 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
37c644f2 | 5914 | |
067653c5 AM |
5915 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
5916 | } | |
37c644f2 | 5917 | |
b34976b6 | 5918 | return TRUE; |
37c644f2 AO |
5919 | } |
5920 | ||
99e4ae17 | 5921 | static enum elf_reloc_type_class |
09fd220b | 5922 | sh_elf_reloc_type_class (const Elf_Internal_Rela *rela) |
99e4ae17 | 5923 | { |
f51e552e | 5924 | switch ((int) ELF32_R_TYPE (rela->r_info)) |
99e4ae17 AJ |
5925 | { |
5926 | case R_SH_RELATIVE: | |
5927 | return reloc_class_relative; | |
5928 | case R_SH_JMP_SLOT: | |
5929 | return reloc_class_plt; | |
5930 | case R_SH_COPY: | |
5931 | return reloc_class_copy; | |
5932 | default: | |
5933 | return reloc_class_normal; | |
5934 | } | |
5935 | } | |
5936 | ||
85fbca6a | 5937 | #if !defined SH_TARGET_ALREADY_DEFINED |
571fe01f | 5938 | /* Support for Linux core dump NOTE sections. */ |
85fbca6a | 5939 | |
b34976b6 | 5940 | static bfd_boolean |
09fd220b | 5941 | elf32_shlin_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
5942 | { |
5943 | int offset; | |
eea6121a | 5944 | unsigned int size; |
2bc3c89a AM |
5945 | |
5946 | switch (note->descsz) | |
5947 | { | |
5948 | default: | |
b34976b6 | 5949 | return FALSE; |
2bc3c89a AM |
5950 | |
5951 | case 168: /* Linux/SH */ | |
5952 | /* pr_cursig */ | |
5953 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
5954 | ||
5955 | /* pr_pid */ | |
5956 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
5957 | ||
5958 | /* pr_reg */ | |
5959 | offset = 72; | |
eea6121a | 5960 | size = 92; |
2bc3c89a AM |
5961 | |
5962 | break; | |
5963 | } | |
5964 | ||
5965 | /* Make a ".reg/999" section. */ | |
5966 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
eea6121a | 5967 | size, note->descpos + offset); |
2bc3c89a AM |
5968 | } |
5969 | ||
b34976b6 | 5970 | static bfd_boolean |
09fd220b | 5971 | elf32_shlin_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) |
2bc3c89a AM |
5972 | { |
5973 | switch (note->descsz) | |
5974 | { | |
5975 | default: | |
b34976b6 | 5976 | return FALSE; |
2bc3c89a AM |
5977 | |
5978 | case 124: /* Linux/SH elf_prpsinfo */ | |
5979 | elf_tdata (abfd)->core_program | |
5980 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
5981 | elf_tdata (abfd)->core_command | |
5982 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
5983 | } | |
5984 | ||
5985 | /* Note that for some reason, a spurious space is tacked | |
5986 | onto the end of the args in some (at least one anyway) | |
5987 | implementations, so strip it off if it exists. */ | |
5988 | ||
5989 | { | |
5990 | char *command = elf_tdata (abfd)->core_command; | |
5991 | int n = strlen (command); | |
5992 | ||
5993 | if (0 < n && command[n - 1] == ' ') | |
5994 | command[n - 1] = '\0'; | |
5995 | } | |
5996 | ||
b34976b6 | 5997 | return TRUE; |
2bc3c89a | 5998 | } |
85fbca6a | 5999 | #endif /* not SH_TARGET_ALREADY_DEFINED */ |
2bc3c89a | 6000 | |
1f1799d5 KK |
6001 | |
6002 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
6003 | or (bfd_vma) -1 if it should not be included. */ | |
6004 | ||
6005 | static bfd_vma | |
6006 | sh_elf_plt_sym_val (bfd_vma i, const asection *plt, | |
6007 | const arelent *rel ATTRIBUTE_UNUSED) | |
6008 | { | |
55e6e397 RS |
6009 | const struct elf_sh_plt_info *plt_info; |
6010 | ||
6011 | plt_info = get_plt_info (plt->owner, (plt->owner->flags & DYNAMIC) != 0); | |
6012 | return plt->vma + get_plt_offset (plt_info, i); | |
1f1799d5 KK |
6013 | } |
6014 | ||
85fbca6a | 6015 | #if !defined SH_TARGET_ALREADY_DEFINED |
252b5132 RH |
6016 | #define TARGET_BIG_SYM bfd_elf32_sh_vec |
6017 | #define TARGET_BIG_NAME "elf32-sh" | |
6018 | #define TARGET_LITTLE_SYM bfd_elf32_shl_vec | |
6019 | #define TARGET_LITTLE_NAME "elf32-shl" | |
85fbca6a NC |
6020 | #endif |
6021 | ||
252b5132 RH |
6022 | #define ELF_ARCH bfd_arch_sh |
6023 | #define ELF_MACHINE_CODE EM_SH | |
d0facd1b NC |
6024 | #ifdef __QNXTARGET__ |
6025 | #define ELF_MAXPAGESIZE 0x1000 | |
6026 | #else | |
6027 | #define ELF_MAXPAGESIZE 0x80 | |
6028 | #endif | |
252b5132 RH |
6029 | |
6030 | #define elf_symbol_leading_char '_' | |
6031 | ||
6032 | #define bfd_elf32_bfd_reloc_type_lookup sh_elf_reloc_type_lookup | |
157090f7 AM |
6033 | #define bfd_elf32_bfd_reloc_name_lookup \ |
6034 | sh_elf_reloc_name_lookup | |
252b5132 RH |
6035 | #define elf_info_to_howto sh_elf_info_to_howto |
6036 | #define bfd_elf32_bfd_relax_section sh_elf_relax_section | |
6037 | #define elf_backend_relocate_section sh_elf_relocate_section | |
6038 | #define bfd_elf32_bfd_get_relocated_section_contents \ | |
6039 | sh_elf_get_relocated_section_contents | |
3376eaf5 KK |
6040 | #define bfd_elf32_mkobject sh_elf_mkobject |
6041 | #define elf_backend_object_p sh_elf_object_p | |
d4845d57 JR |
6042 | #define bfd_elf32_bfd_set_private_bfd_flags \ |
6043 | sh_elf_set_private_flags | |
6044 | #define bfd_elf32_bfd_copy_private_bfd_data \ | |
6045 | sh_elf_copy_private_data | |
875f7f69 | 6046 | #define bfd_elf32_bfd_merge_private_bfd_data \ |
d4845d57 | 6047 | sh_elf_merge_private_data |
252b5132 | 6048 | |
067653c5 AM |
6049 | #define elf_backend_gc_mark_hook sh_elf_gc_mark_hook |
6050 | #define elf_backend_gc_sweep_hook sh_elf_gc_sweep_hook | |
6051 | #define elf_backend_check_relocs sh_elf_check_relocs | |
6052 | #define elf_backend_copy_indirect_symbol \ | |
6053 | sh_elf_copy_indirect_symbol | |
37c644f2 AO |
6054 | #define elf_backend_create_dynamic_sections \ |
6055 | sh_elf_create_dynamic_sections | |
6056 | #define bfd_elf32_bfd_link_hash_table_create \ | |
6057 | sh_elf_link_hash_table_create | |
6058 | #define elf_backend_adjust_dynamic_symbol \ | |
6059 | sh_elf_adjust_dynamic_symbol | |
55e6e397 RS |
6060 | #define elf_backend_always_size_sections \ |
6061 | sh_elf_always_size_sections | |
37c644f2 AO |
6062 | #define elf_backend_size_dynamic_sections \ |
6063 | sh_elf_size_dynamic_sections | |
74541ad4 AM |
6064 | #define elf_backend_omit_section_dynsym \ |
6065 | ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true) | |
37c644f2 AO |
6066 | #define elf_backend_finish_dynamic_symbol \ |
6067 | sh_elf_finish_dynamic_symbol | |
6068 | #define elf_backend_finish_dynamic_sections \ | |
6069 | sh_elf_finish_dynamic_sections | |
99e4ae17 | 6070 | #define elf_backend_reloc_type_class sh_elf_reloc_type_class |
1f1799d5 | 6071 | #define elf_backend_plt_sym_val sh_elf_plt_sym_val |
37c644f2 | 6072 | |
067653c5 AM |
6073 | #define elf_backend_can_gc_sections 1 |
6074 | #define elf_backend_can_refcount 1 | |
37c644f2 AO |
6075 | #define elf_backend_want_got_plt 1 |
6076 | #define elf_backend_plt_readonly 1 | |
6077 | #define elf_backend_want_plt_sym 0 | |
6078 | #define elf_backend_got_header_size 12 | |
ed71e111 | 6079 | |
85fbca6a | 6080 | #if !defined INCLUDE_SHMEDIA && !defined SH_TARGET_ALREADY_DEFINED |
2bc3c89a | 6081 | |
252b5132 | 6082 | #include "elf32-target.h" |
ed71e111 | 6083 | |
2bc3c89a AM |
6084 | /* NetBSD support. */ |
6085 | #undef TARGET_BIG_SYM | |
6086 | #define TARGET_BIG_SYM bfd_elf32_shnbsd_vec | |
6087 | #undef TARGET_BIG_NAME | |
6088 | #define TARGET_BIG_NAME "elf32-sh-nbsd" | |
6089 | #undef TARGET_LITTLE_SYM | |
6090 | #define TARGET_LITTLE_SYM bfd_elf32_shlnbsd_vec | |
6091 | #undef TARGET_LITTLE_NAME | |
6092 | #define TARGET_LITTLE_NAME "elf32-shl-nbsd" | |
6093 | #undef ELF_MAXPAGESIZE | |
6094 | #define ELF_MAXPAGESIZE 0x10000 | |
24718e3b | 6095 | #undef ELF_COMMONPAGESIZE |
2bc3c89a AM |
6096 | #undef elf_symbol_leading_char |
6097 | #define elf_symbol_leading_char 0 | |
571fe01f | 6098 | #undef elf32_bed |
2bc3c89a AM |
6099 | #define elf32_bed elf32_sh_nbsd_bed |
6100 | ||
6101 | #include "elf32-target.h" | |
6102 | ||
2bc3c89a AM |
6103 | |
6104 | /* Linux support. */ | |
6105 | #undef TARGET_BIG_SYM | |
6106 | #define TARGET_BIG_SYM bfd_elf32_shblin_vec | |
6107 | #undef TARGET_BIG_NAME | |
6108 | #define TARGET_BIG_NAME "elf32-shbig-linux" | |
6109 | #undef TARGET_LITTLE_SYM | |
6110 | #define TARGET_LITTLE_SYM bfd_elf32_shlin_vec | |
6111 | #undef TARGET_LITTLE_NAME | |
6112 | #define TARGET_LITTLE_NAME "elf32-sh-linux" | |
24718e3b L |
6113 | #undef ELF_COMMONPAGESIZE |
6114 | #define ELF_COMMONPAGESIZE 0x1000 | |
2bc3c89a AM |
6115 | |
6116 | #undef elf_backend_grok_prstatus | |
6117 | #define elf_backend_grok_prstatus elf32_shlin_grok_prstatus | |
6118 | #undef elf_backend_grok_psinfo | |
6119 | #define elf_backend_grok_psinfo elf32_shlin_grok_psinfo | |
571fe01f | 6120 | #undef elf32_bed |
2bc3c89a AM |
6121 | #define elf32_bed elf32_sh_lin_bed |
6122 | ||
6123 | #include "elf32-target.h" | |
6124 | ||
55e6e397 RS |
6125 | #undef TARGET_BIG_SYM |
6126 | #define TARGET_BIG_SYM bfd_elf32_shvxworks_vec | |
6127 | #undef TARGET_BIG_NAME | |
6128 | #define TARGET_BIG_NAME "elf32-sh-vxworks" | |
6129 | #undef TARGET_LITTLE_SYM | |
6130 | #define TARGET_LITTLE_SYM bfd_elf32_shlvxworks_vec | |
6131 | #undef TARGET_LITTLE_NAME | |
6132 | #define TARGET_LITTLE_NAME "elf32-shl-vxworks" | |
6133 | #undef elf32_bed | |
6134 | #define elf32_bed elf32_sh_vxworks_bed | |
6135 | ||
6136 | #undef elf_backend_want_plt_sym | |
6137 | #define elf_backend_want_plt_sym 1 | |
6138 | #undef elf_symbol_leading_char | |
6139 | #define elf_symbol_leading_char '_' | |
6140 | #define elf_backend_want_got_underscore 1 | |
6141 | #undef elf_backend_grok_prstatus | |
6142 | #undef elf_backend_grok_psinfo | |
6143 | #undef elf_backend_add_symbol_hook | |
6144 | #define elf_backend_add_symbol_hook elf_vxworks_add_symbol_hook | |
6145 | #undef elf_backend_link_output_symbol_hook | |
6146 | #define elf_backend_link_output_symbol_hook \ | |
6147 | elf_vxworks_link_output_symbol_hook | |
6148 | #undef elf_backend_emit_relocs | |
6149 | #define elf_backend_emit_relocs elf_vxworks_emit_relocs | |
6150 | #undef elf_backend_final_write_processing | |
6151 | #define elf_backend_final_write_processing \ | |
6152 | elf_vxworks_final_write_processing | |
6153 | #undef ELF_MAXPAGESIZE | |
6154 | #define ELF_MAXPAGESIZE 0x1000 | |
6155 | #undef ELF_COMMONPAGESIZE | |
6156 | ||
6157 | #include "elf32-target.h" | |
6158 | ||
85fbca6a | 6159 | #endif /* neither INCLUDE_SHMEDIA nor SH_TARGET_ALREADY_DEFINED */ |