elf32-m32r.c revision 1.1.1.5 1 1.1 skrll /* M32R-specific support for 32-bit ELF.
2 1.1.1.5 christos Copyright (C) 1996-2016 Free Software Foundation, Inc.
3 1.1 skrll
4 1.1 skrll This file is part of BFD, the Binary File Descriptor library.
5 1.1 skrll
6 1.1 skrll This program is free software; you can redistribute it and/or modify
7 1.1 skrll it under the terms of the GNU General Public License as published by
8 1.1 skrll the Free Software Foundation; either version 3 of the License, or
9 1.1 skrll (at your option) any later version.
10 1.1 skrll
11 1.1 skrll This program is distributed in the hope that it will be useful,
12 1.1 skrll but WITHOUT ANY WARRANTY; without even the implied warranty of
13 1.1 skrll MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 1.1 skrll GNU General Public License for more details.
15 1.1 skrll
16 1.1 skrll You should have received a copy of the GNU General Public License
17 1.1 skrll along with this program; if not, write to the Free Software
18 1.1 skrll Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 1.1 skrll MA 02110-1301, USA. */
20 1.1 skrll
21 1.1 skrll #include "sysdep.h"
22 1.1 skrll #include "bfd.h"
23 1.1 skrll #include "libbfd.h"
24 1.1 skrll #include "elf-bfd.h"
25 1.1 skrll #include "elf/m32r.h"
26 1.1 skrll
27 1.1 skrll #define NOP_INSN 0x7000
28 1.1 skrll #define MAKE_PARALLEL(insn) ((insn) | 0x8000)
29 1.1 skrll
30 1.1 skrll /* Use REL instead of RELA to save space.
31 1.1 skrll This only saves space in libraries and object files, but perhaps
32 1.1 skrll relocs will be put in ROM? All in all though, REL relocs are a pain
33 1.1 skrll to work with. */
34 1.1 skrll /* #define USE_REL 1
35 1.1 skrll
36 1.1 skrll #ifndef USE_REL
37 1.1 skrll #define USE_REL 0
38 1.1 skrll #endif */
39 1.1 skrll /* Use RELA. But use REL to link old objects for backwords compatibility. */
40 1.1 skrll
41 1.1 skrll /* Functions for the M32R ELF linker. */
42 1.1 skrll
43 1.1 skrll /* The name of the dynamic interpreter. This is put in the .interp
44 1.1 skrll section. */
45 1.1 skrll
46 1.1 skrll #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
47 1.1 skrll
48 1.1 skrll /* The nop opcode we use. */
49 1.1 skrll
50 1.1 skrll #define M32R_NOP 0x7000f000
51 1.1 skrll
52 1.1 skrll #define PLT_EMPTY 0x10101010 /* RIE -> RIE */
53 1.1 skrll
54 1.1 skrll /* The size in bytes of an entry in the procedure linkage table. */
55 1.1 skrll
56 1.1 skrll #define PLT_ENTRY_SIZE 20
57 1.1 skrll #define PLT_HEADER_SIZE 20
58 1.1 skrll
59 1.1 skrll /* The first one entries in a procedure linkage table are reserved,
60 1.1 skrll and the initial contents are unimportant (we zero them out).
61 1.1 skrll Subsequent entries look like this. */
62 1.1 skrll
63 1.1 skrll #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
64 1.1 skrll #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
65 1.1 skrll #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
66 1.1 skrll #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
67 1.1 skrll #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
68 1.1 skrll
69 1.1 skrll #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
70 1.1 skrll #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
71 1.1 skrll #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
72 1.1 skrll #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
73 1.1 skrll #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
74 1.1 skrll
75 1.1 skrll #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
76 1.1 skrll #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
77 1.1 skrll #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
78 1.1 skrll #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
79 1.1 skrll #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
80 1.1 skrll #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
81 1.1 skrll #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
82 1.1 skrll
83 1.1 skrll
84 1.1 skrll /* Utility to actually perform an R_M32R_10_PCREL reloc. */
85 1.1 skrll
86 1.1 skrll static bfd_reloc_status_type
87 1.1 skrll m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 1.1 skrll reloc_howto_type *howto,
89 1.1 skrll asection *input_section,
90 1.1 skrll bfd_byte *data,
91 1.1 skrll bfd_vma offset,
92 1.1 skrll asection *symbol_section ATTRIBUTE_UNUSED,
93 1.1 skrll bfd_vma symbol_value,
94 1.1 skrll bfd_vma addend)
95 1.1 skrll {
96 1.1 skrll bfd_signed_vma relocation;
97 1.1 skrll unsigned long x;
98 1.1 skrll bfd_reloc_status_type status;
99 1.1 skrll
100 1.1 skrll /* Sanity check the address (offset in section). */
101 1.1 skrll if (offset > bfd_get_section_limit (abfd, input_section))
102 1.1 skrll return bfd_reloc_outofrange;
103 1.1 skrll
104 1.1 skrll relocation = symbol_value + addend;
105 1.1 skrll /* Make it pc relative. */
106 1.1 skrll relocation -= (input_section->output_section->vma
107 1.1 skrll + input_section->output_offset);
108 1.1 skrll /* These jumps mask off the lower two bits of the current address
109 1.1 skrll before doing pcrel calculations. */
110 1.1 skrll relocation -= (offset & -(bfd_vma) 4);
111 1.1 skrll
112 1.1 skrll if (relocation < -0x200 || relocation > 0x1ff)
113 1.1 skrll status = bfd_reloc_overflow;
114 1.1 skrll else
115 1.1 skrll status = bfd_reloc_ok;
116 1.1 skrll
117 1.1 skrll x = bfd_get_16 (abfd, data + offset);
118 1.1 skrll relocation >>= howto->rightshift;
119 1.1 skrll relocation <<= howto->bitpos;
120 1.1 skrll x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121 1.1 skrll bfd_put_16 (abfd, (bfd_vma) x, data + offset);
122 1.1 skrll
123 1.1 skrll return status;
124 1.1 skrll }
125 1.1 skrll
126 1.1 skrll /* Handle the R_M32R_10_PCREL reloc. */
127 1.1 skrll
128 1.1 skrll static bfd_reloc_status_type
129 1.1 skrll m32r_elf_10_pcrel_reloc (bfd * abfd,
130 1.1 skrll arelent * reloc_entry,
131 1.1 skrll asymbol * symbol,
132 1.1 skrll void * data,
133 1.1 skrll asection * input_section,
134 1.1 skrll bfd * output_bfd,
135 1.1 skrll char ** error_message ATTRIBUTE_UNUSED)
136 1.1 skrll {
137 1.1 skrll /* This part is from bfd_elf_generic_reloc. */
138 1.1 skrll if (output_bfd != NULL
139 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
140 1.1 skrll && (! reloc_entry->howto->partial_inplace
141 1.1 skrll || reloc_entry->addend == 0))
142 1.1 skrll {
143 1.1 skrll reloc_entry->address += input_section->output_offset;
144 1.1 skrll return bfd_reloc_ok;
145 1.1 skrll }
146 1.1 skrll
147 1.1 skrll if (output_bfd != NULL)
148 1.1 skrll /* FIXME: See bfd_perform_relocation. Is this right? */
149 1.1 skrll return bfd_reloc_continue;
150 1.1 skrll
151 1.1 skrll return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 1.1 skrll input_section,
153 1.1 skrll data, reloc_entry->address,
154 1.1 skrll symbol->section,
155 1.1 skrll (symbol->value
156 1.1 skrll + symbol->section->output_section->vma
157 1.1 skrll + symbol->section->output_offset),
158 1.1 skrll reloc_entry->addend);
159 1.1 skrll }
160 1.1 skrll
161 1.1 skrll /* Do generic partial_inplace relocation.
162 1.1 skrll This is a local replacement for bfd_elf_generic_reloc. */
163 1.1 skrll
164 1.1 skrll static bfd_reloc_status_type
165 1.1 skrll m32r_elf_generic_reloc (bfd *input_bfd,
166 1.1 skrll arelent *reloc_entry,
167 1.1 skrll asymbol *symbol,
168 1.1 skrll void * data,
169 1.1 skrll asection *input_section,
170 1.1 skrll bfd *output_bfd,
171 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
172 1.1 skrll {
173 1.1 skrll bfd_reloc_status_type ret;
174 1.1 skrll bfd_vma relocation;
175 1.1 skrll bfd_byte *inplace_address;
176 1.1 skrll
177 1.1 skrll /* This part is from bfd_elf_generic_reloc.
178 1.1 skrll If we're relocating, and this an external symbol, we don't want
179 1.1 skrll to change anything. */
180 1.1 skrll if (output_bfd != NULL
181 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
182 1.1 skrll && reloc_entry->addend == 0)
183 1.1 skrll {
184 1.1 skrll reloc_entry->address += input_section->output_offset;
185 1.1 skrll return bfd_reloc_ok;
186 1.1 skrll }
187 1.1 skrll
188 1.1 skrll /* Now do the reloc in the usual way.
189 1.1 skrll ??? It would be nice to call bfd_elf_generic_reloc here,
190 1.1 skrll but we have partial_inplace set. bfd_elf_generic_reloc will
191 1.1 skrll pass the handling back to bfd_install_relocation which will install
192 1.1 skrll a section relative addend which is wrong. */
193 1.1 skrll
194 1.1 skrll /* Sanity check the address (offset in section). */
195 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196 1.1 skrll return bfd_reloc_outofrange;
197 1.1 skrll
198 1.1 skrll ret = bfd_reloc_ok;
199 1.1 skrll if (bfd_is_und_section (symbol->section)
200 1.1 skrll && output_bfd == NULL)
201 1.1 skrll ret = bfd_reloc_undefined;
202 1.1 skrll
203 1.1 skrll if (bfd_is_com_section (symbol->section)
204 1.1 skrll || output_bfd != NULL)
205 1.1 skrll relocation = 0;
206 1.1 skrll else
207 1.1 skrll relocation = symbol->value;
208 1.1 skrll
209 1.1 skrll /* Only do this for a final link. */
210 1.1 skrll if (output_bfd == NULL)
211 1.1 skrll {
212 1.1 skrll relocation += symbol->section->output_section->vma;
213 1.1 skrll relocation += symbol->section->output_offset;
214 1.1 skrll }
215 1.1 skrll
216 1.1 skrll relocation += reloc_entry->addend;
217 1.1 skrll inplace_address = (bfd_byte *) data + reloc_entry->address;
218 1.1 skrll
219 1.1 skrll #define DOIT(x) \
220 1.1 skrll x = ( (x & ~reloc_entry->howto->dst_mask) | \
221 1.1 skrll (((x & reloc_entry->howto->src_mask) + relocation) & \
222 1.1 skrll reloc_entry->howto->dst_mask))
223 1.1 skrll
224 1.1 skrll switch (reloc_entry->howto->size)
225 1.1 skrll {
226 1.1 skrll case 1:
227 1.1 skrll {
228 1.1 skrll short x = bfd_get_16 (input_bfd, inplace_address);
229 1.1 skrll DOIT (x);
230 1.1 skrll bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231 1.1 skrll }
232 1.1 skrll break;
233 1.1 skrll case 2:
234 1.1 skrll {
235 1.1 skrll unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 1.1 skrll DOIT (x);
237 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238 1.1 skrll }
239 1.1 skrll break;
240 1.1 skrll default:
241 1.1 skrll BFD_ASSERT (0);
242 1.1 skrll }
243 1.1 skrll
244 1.1 skrll if (output_bfd != NULL)
245 1.1 skrll reloc_entry->address += input_section->output_offset;
246 1.1 skrll
247 1.1 skrll return ret;
248 1.1 skrll }
249 1.1 skrll
250 1.1 skrll /* Handle the R_M32R_SDA16 reloc.
251 1.1 skrll This reloc is used to compute the address of objects in the small data area
252 1.1 skrll and to perform loads and stores from that area.
253 1.1 skrll The lower 16 bits are sign extended and added to the register specified
254 1.1 skrll in the instruction, which is assumed to point to _SDA_BASE_. */
255 1.1 skrll
256 1.1 skrll static bfd_reloc_status_type
257 1.1 skrll m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 1.1 skrll arelent *reloc_entry,
259 1.1 skrll asymbol *symbol,
260 1.1 skrll void * data ATTRIBUTE_UNUSED,
261 1.1 skrll asection *input_section,
262 1.1 skrll bfd *output_bfd,
263 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
264 1.1 skrll {
265 1.1 skrll /* This part is from bfd_elf_generic_reloc. */
266 1.1 skrll if (output_bfd != NULL
267 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
268 1.1 skrll && (! reloc_entry->howto->partial_inplace
269 1.1 skrll || reloc_entry->addend == 0))
270 1.1 skrll {
271 1.1 skrll reloc_entry->address += input_section->output_offset;
272 1.1 skrll return bfd_reloc_ok;
273 1.1 skrll }
274 1.1 skrll
275 1.1 skrll if (output_bfd != NULL)
276 1.1 skrll /* FIXME: See bfd_perform_relocation. Is this right? */
277 1.1 skrll return bfd_reloc_continue;
278 1.1 skrll
279 1.1 skrll /* FIXME: not sure what to do here yet. But then again, the linker
280 1.1 skrll may never call us. */
281 1.1 skrll abort ();
282 1.1 skrll }
283 1.1 skrll
284 1.1 skrll
285 1.1 skrll /* Handle the R_M32R_HI16_[SU]LO relocs.
287 1.1 skrll HI16_SLO is for the add3 and load/store with displacement instructions.
288 1.1 skrll HI16_ULO is for the or3 instruction.
289 1.1 skrll For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
290 1.1 skrll the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
291 1.1 skrll we must add one to the high 16 bytes (which will get subtracted off when
292 1.1 skrll the low 16 bits are added).
293 1.1 skrll These relocs have to be done in combination with an R_M32R_LO16 reloc
294 1.1 skrll because there is a carry from the LO16 to the HI16. Here we just save
295 1.1 skrll the information we need; we do the actual relocation when we see the LO16.
296 1.1 skrll This code is copied from the elf32-mips.c. We also support an arbitrary
297 1.1 skrll number of HI16 relocs to be associated with a single LO16 reloc. The
298 1.1 skrll assembler sorts the relocs to ensure each HI16 immediately precedes its
299 1.1 skrll LO16. However if there are multiple copies, the assembler may not find
300 1.1 skrll the real LO16 so it picks the first one it finds. */
301 1.1 skrll
302 1.1 skrll struct m32r_hi16
303 1.1 skrll {
304 1.1 skrll struct m32r_hi16 *next;
305 1.1 skrll bfd_byte *addr;
306 1.1 skrll bfd_vma addend;
307 1.1 skrll };
308 1.1 skrll
309 1.1 skrll /* FIXME: This should not be a static variable. */
310 1.1 skrll
311 1.1 skrll static struct m32r_hi16 *m32r_hi16_list;
312 1.1 skrll
313 1.1 skrll static bfd_reloc_status_type
314 1.1 skrll m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
315 1.1 skrll arelent *reloc_entry,
316 1.1 skrll asymbol *symbol,
317 1.1 skrll void * data,
318 1.1 skrll asection *input_section,
319 1.1 skrll bfd *output_bfd,
320 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
321 1.1 skrll {
322 1.1 skrll bfd_reloc_status_type ret;
323 1.1 skrll bfd_vma relocation;
324 1.1 skrll struct m32r_hi16 *n;
325 1.1 skrll
326 1.1 skrll /* This part is from bfd_elf_generic_reloc.
327 1.1 skrll If we're relocating, and this an external symbol, we don't want
328 1.1 skrll to change anything. */
329 1.1 skrll if (output_bfd != NULL
330 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
331 1.1 skrll && reloc_entry->addend == 0)
332 1.1 skrll {
333 1.1 skrll reloc_entry->address += input_section->output_offset;
334 1.1 skrll return bfd_reloc_ok;
335 1.1 skrll }
336 1.1 skrll
337 1.1 skrll /* Sanity check the address (offset in section). */
338 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
339 1.1 skrll return bfd_reloc_outofrange;
340 1.1 skrll
341 1.1 skrll ret = bfd_reloc_ok;
342 1.1 skrll if (bfd_is_und_section (symbol->section)
343 1.1 skrll && output_bfd == NULL)
344 1.1 skrll ret = bfd_reloc_undefined;
345 1.1 skrll
346 1.1 skrll if (bfd_is_com_section (symbol->section))
347 1.1 skrll relocation = 0;
348 1.1 skrll else
349 1.1 skrll relocation = symbol->value;
350 1.1 skrll
351 1.1 skrll relocation += symbol->section->output_section->vma;
352 1.1 skrll relocation += symbol->section->output_offset;
353 1.1 skrll relocation += reloc_entry->addend;
354 1.1 skrll
355 1.1 skrll /* Save the information, and let LO16 do the actual relocation. */
356 1.1 skrll n = bfd_malloc ((bfd_size_type) sizeof *n);
357 1.1 skrll if (n == NULL)
358 1.1 skrll return bfd_reloc_outofrange;
359 1.1 skrll n->addr = (bfd_byte *) data + reloc_entry->address;
360 1.1 skrll n->addend = relocation;
361 1.1 skrll n->next = m32r_hi16_list;
362 1.1 skrll m32r_hi16_list = n;
363 1.1 skrll
364 1.1 skrll if (output_bfd != NULL)
365 1.1 skrll reloc_entry->address += input_section->output_offset;
366 1.1 skrll
367 1.1 skrll return ret;
368 1.1 skrll }
369 1.1 skrll
370 1.1 skrll /* Handle an M32R ELF HI16 reloc. */
371 1.1 skrll
372 1.1 skrll static void
373 1.1 skrll m32r_elf_relocate_hi16 (bfd *input_bfd,
374 1.1 skrll int type,
375 1.1 skrll Elf_Internal_Rela *relhi,
376 1.1 skrll Elf_Internal_Rela *rello,
377 1.1 skrll bfd_byte *contents,
378 1.1 skrll bfd_vma addend)
379 1.1 skrll {
380 1.1 skrll unsigned long insn;
381 1.1 skrll bfd_vma addlo;
382 1.1 skrll
383 1.1 skrll insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
384 1.1 skrll
385 1.1 skrll addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
386 1.1 skrll if (type == R_M32R_HI16_SLO)
387 1.1 skrll addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
388 1.1 skrll else
389 1.1 skrll addlo &= 0xffff;
390 1.1 skrll
391 1.1 skrll addend += ((insn & 0xffff) << 16) + addlo;
392 1.1 skrll
393 1.1 skrll /* Reaccount for sign extension of low part. */
394 1.1 skrll if (type == R_M32R_HI16_SLO
395 1.1 skrll && (addend & 0x8000) != 0)
396 1.1 skrll addend += 0x10000;
397 1.1 skrll
398 1.1 skrll bfd_put_32 (input_bfd,
399 1.1 skrll (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
400 1.1 skrll contents + relhi->r_offset);
401 1.1 skrll }
402 1.1 skrll
403 1.1 skrll /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
404 1.1 skrll inplace relocation; this function exists in order to do the
405 1.1 skrll R_M32R_HI16_[SU]LO relocation described above. */
406 1.1 skrll
407 1.1 skrll static bfd_reloc_status_type
408 1.1 skrll m32r_elf_lo16_reloc (bfd *input_bfd,
409 1.1 skrll arelent *reloc_entry,
410 1.1 skrll asymbol *symbol,
411 1.1 skrll void * data,
412 1.1 skrll asection *input_section,
413 1.1 skrll bfd *output_bfd,
414 1.1 skrll char **error_message)
415 1.1 skrll {
416 1.1 skrll /* This part is from bfd_elf_generic_reloc.
417 1.1 skrll If we're relocating, and this an external symbol, we don't want
418 1.1 skrll to change anything. */
419 1.1 skrll if (output_bfd != NULL
420 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
421 1.1 skrll && reloc_entry->addend == 0)
422 1.1 skrll {
423 1.1 skrll reloc_entry->address += input_section->output_offset;
424 1.1 skrll return bfd_reloc_ok;
425 1.1 skrll }
426 1.1 skrll
427 1.1 skrll if (m32r_hi16_list != NULL)
428 1.1 skrll {
429 1.1 skrll struct m32r_hi16 *l;
430 1.1 skrll
431 1.1 skrll l = m32r_hi16_list;
432 1.1 skrll while (l != NULL)
433 1.1 skrll {
434 1.1 skrll unsigned long insn;
435 1.1 skrll unsigned long val;
436 1.1 skrll unsigned long vallo;
437 1.1 skrll struct m32r_hi16 *next;
438 1.1 skrll
439 1.1 skrll /* Do the HI16 relocation. Note that we actually don't need
440 1.1 skrll to know anything about the LO16 itself, except where to
441 1.1 skrll find the low 16 bits of the addend needed by the LO16. */
442 1.1 skrll insn = bfd_get_32 (input_bfd, l->addr);
443 1.1 skrll vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
444 1.1 skrll & 0xffff) ^ 0x8000) - 0x8000;
445 1.1 skrll val = ((insn & 0xffff) << 16) + vallo;
446 1.1 skrll val += l->addend;
447 1.1 skrll
448 1.1 skrll /* Reaccount for sign extension of low part. */
449 1.1 skrll if ((val & 0x8000) != 0)
450 1.1 skrll val += 0x10000;
451 1.1 skrll
452 1.1 skrll insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
453 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
454 1.1 skrll
455 1.1 skrll next = l->next;
456 1.1 skrll free (l);
457 1.1 skrll l = next;
458 1.1 skrll }
459 1.1 skrll
460 1.1 skrll m32r_hi16_list = NULL;
461 1.1 skrll }
462 1.1 skrll
463 1.1 skrll /* Now do the LO16 reloc in the usual way.
464 1.1 skrll ??? It would be nice to call bfd_elf_generic_reloc here,
465 1.1 skrll but we have partial_inplace set. bfd_elf_generic_reloc will
466 1.1 skrll pass the handling back to bfd_install_relocation which will install
467 1.1 skrll a section relative addend which is wrong. */
468 1.1 skrll return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
469 1.1 skrll input_section, output_bfd, error_message);
470 1.1 skrll }
471 1.1 skrll
472 1.1 skrll
473 1.1 skrll static reloc_howto_type m32r_elf_howto_table[] =
475 1.1 skrll {
476 1.1 skrll /* This reloc does nothing. */
477 1.1.1.4 christos HOWTO (R_M32R_NONE, /* type */
478 1.1.1.4 christos 0, /* rightshift */
479 1.1 skrll 3, /* size (0 = byte, 1 = short, 2 = long) */
480 1.1 skrll 0, /* bitsize */
481 1.1.1.4 christos FALSE, /* pc_relative */
482 1.1 skrll 0, /* bitpos */
483 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
484 1.1 skrll bfd_elf_generic_reloc, /* special_function */
485 1.1 skrll "R_M32R_NONE", /* name */
486 1.1 skrll FALSE, /* partial_inplace */
487 1.1 skrll 0, /* src_mask */
488 1.1 skrll 0, /* dst_mask */
489 1.1 skrll FALSE), /* pcrel_offset */
490 1.1 skrll
491 1.1 skrll /* A 16 bit absolute relocation. */
492 1.1 skrll HOWTO (R_M32R_16, /* type */
493 1.1 skrll 0, /* rightshift */
494 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
495 1.1 skrll 16, /* bitsize */
496 1.1 skrll FALSE, /* pc_relative */
497 1.1 skrll 0, /* bitpos */
498 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
499 1.1 skrll m32r_elf_generic_reloc,/* special_function */
500 1.1 skrll "R_M32R_16", /* name */
501 1.1 skrll TRUE, /* partial_inplace */
502 1.1 skrll 0xffff, /* src_mask */
503 1.1 skrll 0xffff, /* dst_mask */
504 1.1 skrll FALSE), /* pcrel_offset */
505 1.1 skrll
506 1.1 skrll /* A 32 bit absolute relocation. */
507 1.1 skrll HOWTO (R_M32R_32, /* type */
508 1.1 skrll 0, /* rightshift */
509 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
510 1.1 skrll 32, /* bitsize */
511 1.1 skrll FALSE, /* pc_relative */
512 1.1 skrll 0, /* bitpos */
513 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
514 1.1 skrll m32r_elf_generic_reloc,/* special_function */
515 1.1 skrll "R_M32R_32", /* name */
516 1.1 skrll TRUE, /* partial_inplace */
517 1.1 skrll 0xffffffff, /* src_mask */
518 1.1 skrll 0xffffffff, /* dst_mask */
519 1.1 skrll FALSE), /* pcrel_offset */
520 1.1 skrll
521 1.1 skrll /* A 24 bit address. */
522 1.1 skrll HOWTO (R_M32R_24, /* type */
523 1.1 skrll 0, /* rightshift */
524 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
525 1.1 skrll 24, /* bitsize */
526 1.1 skrll FALSE, /* pc_relative */
527 1.1 skrll 0, /* bitpos */
528 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
529 1.1 skrll m32r_elf_generic_reloc,/* special_function */
530 1.1 skrll "R_M32R_24", /* name */
531 1.1 skrll TRUE, /* partial_inplace */
532 1.1 skrll 0xffffff, /* src_mask */
533 1.1 skrll 0xffffff, /* dst_mask */
534 1.1 skrll FALSE), /* pcrel_offset */
535 1.1 skrll
536 1.1 skrll /* An PC Relative 10-bit relocation, shifted by 2.
537 1.1 skrll This reloc is complicated because relocations are relative to pc & -4.
538 1.1 skrll i.e. branches in the right insn slot use the address of the left insn
539 1.1 skrll slot for pc. */
540 1.1 skrll /* ??? It's not clear whether this should have partial_inplace set or not.
541 1.1 skrll Branch relaxing in the assembler can store the addend in the insn,
542 1.1 skrll and if bfd_install_relocation gets called the addend may get added
543 1.1 skrll again. */
544 1.1 skrll HOWTO (R_M32R_10_PCREL, /* type */
545 1.1 skrll 2, /* rightshift */
546 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
547 1.1 skrll 10, /* bitsize */
548 1.1 skrll TRUE, /* pc_relative */
549 1.1 skrll 0, /* bitpos */
550 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
551 1.1 skrll m32r_elf_10_pcrel_reloc, /* special_function */
552 1.1 skrll "R_M32R_10_PCREL", /* name */
553 1.1 skrll FALSE, /* partial_inplace */
554 1.1 skrll 0xff, /* src_mask */
555 1.1 skrll 0xff, /* dst_mask */
556 1.1 skrll TRUE), /* pcrel_offset */
557 1.1 skrll
558 1.1 skrll /* A relative 18 bit relocation, right shifted by 2. */
559 1.1 skrll HOWTO (R_M32R_18_PCREL, /* type */
560 1.1 skrll 2, /* rightshift */
561 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
562 1.1 skrll 16, /* bitsize */
563 1.1 skrll TRUE, /* pc_relative */
564 1.1 skrll 0, /* bitpos */
565 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
566 1.1 skrll bfd_elf_generic_reloc, /* special_function */
567 1.1 skrll "R_M32R_18_PCREL", /* name */
568 1.1 skrll FALSE, /* partial_inplace */
569 1.1 skrll 0xffff, /* src_mask */
570 1.1 skrll 0xffff, /* dst_mask */
571 1.1 skrll TRUE), /* pcrel_offset */
572 1.1 skrll
573 1.1 skrll /* A relative 26 bit relocation, right shifted by 2. */
574 1.1 skrll /* ??? It's not clear whether this should have partial_inplace set or not.
575 1.1 skrll Branch relaxing in the assembler can store the addend in the insn,
576 1.1 skrll and if bfd_install_relocation gets called the addend may get added
577 1.1 skrll again. */
578 1.1 skrll HOWTO (R_M32R_26_PCREL, /* type */
579 1.1 skrll 2, /* rightshift */
580 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
581 1.1 skrll 26, /* bitsize */
582 1.1 skrll TRUE, /* pc_relative */
583 1.1 skrll 0, /* bitpos */
584 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
585 1.1 skrll bfd_elf_generic_reloc, /* special_function */
586 1.1 skrll "R_M32R_26_PCREL", /* name */
587 1.1 skrll FALSE, /* partial_inplace */
588 1.1 skrll 0xffffff, /* src_mask */
589 1.1 skrll 0xffffff, /* dst_mask */
590 1.1 skrll TRUE), /* pcrel_offset */
591 1.1 skrll
592 1.1 skrll /* High 16 bits of address when lower 16 is or'd in. */
593 1.1 skrll HOWTO (R_M32R_HI16_ULO, /* type */
594 1.1 skrll 16, /* rightshift */
595 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
596 1.1 skrll 16, /* bitsize */
597 1.1 skrll FALSE, /* pc_relative */
598 1.1 skrll 0, /* bitpos */
599 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
600 1.1 skrll m32r_elf_hi16_reloc, /* special_function */
601 1.1 skrll "R_M32R_HI16_ULO", /* name */
602 1.1 skrll TRUE, /* partial_inplace */
603 1.1 skrll 0x0000ffff, /* src_mask */
604 1.1 skrll 0x0000ffff, /* dst_mask */
605 1.1 skrll FALSE), /* pcrel_offset */
606 1.1 skrll
607 1.1 skrll /* High 16 bits of address when lower 16 is added in. */
608 1.1 skrll HOWTO (R_M32R_HI16_SLO, /* type */
609 1.1 skrll 16, /* rightshift */
610 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
611 1.1 skrll 16, /* bitsize */
612 1.1 skrll FALSE, /* pc_relative */
613 1.1 skrll 0, /* bitpos */
614 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
615 1.1 skrll m32r_elf_hi16_reloc, /* special_function */
616 1.1 skrll "R_M32R_HI16_SLO", /* name */
617 1.1 skrll TRUE, /* partial_inplace */
618 1.1 skrll 0x0000ffff, /* src_mask */
619 1.1 skrll 0x0000ffff, /* dst_mask */
620 1.1 skrll FALSE), /* pcrel_offset */
621 1.1 skrll
622 1.1 skrll /* Lower 16 bits of address. */
623 1.1 skrll HOWTO (R_M32R_LO16, /* type */
624 1.1 skrll 0, /* rightshift */
625 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
626 1.1 skrll 16, /* bitsize */
627 1.1 skrll FALSE, /* pc_relative */
628 1.1 skrll 0, /* bitpos */
629 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
630 1.1 skrll m32r_elf_lo16_reloc, /* special_function */
631 1.1 skrll "R_M32R_LO16", /* name */
632 1.1 skrll TRUE, /* partial_inplace */
633 1.1 skrll 0x0000ffff, /* src_mask */
634 1.1 skrll 0x0000ffff, /* dst_mask */
635 1.1 skrll FALSE), /* pcrel_offset */
636 1.1 skrll
637 1.1 skrll /* Small data area 16 bits offset. */
638 1.1 skrll HOWTO (R_M32R_SDA16, /* type */
639 1.1 skrll 0, /* rightshift */
640 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
641 1.1 skrll 16, /* bitsize */
642 1.1 skrll FALSE, /* pc_relative */
643 1.1 skrll 0, /* bitpos */
644 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
645 1.1 skrll m32r_elf_sda16_reloc, /* special_function */
646 1.1 skrll "R_M32R_SDA16", /* name */
647 1.1 skrll TRUE, /* partial_inplace */ /* FIXME: correct? */
648 1.1 skrll 0x0000ffff, /* src_mask */
649 1.1 skrll 0x0000ffff, /* dst_mask */
650 1.1 skrll FALSE), /* pcrel_offset */
651 1.1 skrll
652 1.1 skrll /* GNU extension to record C++ vtable hierarchy. */
653 1.1 skrll HOWTO (R_M32R_GNU_VTINHERIT, /* type */
654 1.1 skrll 0, /* rightshift */
655 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
656 1.1 skrll 0, /* bitsize */
657 1.1 skrll FALSE, /* pc_relative */
658 1.1 skrll 0, /* bitpos */
659 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
660 1.1 skrll NULL, /* special_function */
661 1.1 skrll "R_M32R_GNU_VTINHERIT", /* name */
662 1.1 skrll FALSE, /* partial_inplace */
663 1.1 skrll 0, /* src_mask */
664 1.1 skrll 0, /* dst_mask */
665 1.1 skrll FALSE), /* pcrel_offset */
666 1.1 skrll
667 1.1 skrll /* GNU extension to record C++ vtable member usage. */
668 1.1 skrll HOWTO (R_M32R_GNU_VTENTRY, /* type */
669 1.1 skrll 0, /* rightshift */
670 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
671 1.1 skrll 0, /* bitsize */
672 1.1 skrll FALSE, /* pc_relative */
673 1.1 skrll 0, /* bitpos */
674 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
675 1.1 skrll _bfd_elf_rel_vtable_reloc_fn, /* special_function */
676 1.1 skrll "R_M32R_GNU_VTENTRY", /* name */
677 1.1 skrll FALSE, /* partial_inplace */
678 1.1 skrll 0, /* src_mask */
679 1.1 skrll 0, /* dst_mask */
680 1.1 skrll FALSE), /* pcrel_offset */
681 1.1 skrll
682 1.1 skrll EMPTY_HOWTO (13),
683 1.1 skrll EMPTY_HOWTO (14),
684 1.1 skrll EMPTY_HOWTO (15),
685 1.1 skrll EMPTY_HOWTO (16),
686 1.1 skrll EMPTY_HOWTO (17),
687 1.1 skrll EMPTY_HOWTO (18),
688 1.1 skrll EMPTY_HOWTO (19),
689 1.1 skrll EMPTY_HOWTO (20),
690 1.1 skrll EMPTY_HOWTO (21),
691 1.1 skrll EMPTY_HOWTO (22),
692 1.1 skrll EMPTY_HOWTO (23),
693 1.1 skrll EMPTY_HOWTO (24),
694 1.1 skrll EMPTY_HOWTO (25),
695 1.1 skrll EMPTY_HOWTO (26),
696 1.1 skrll EMPTY_HOWTO (27),
697 1.1 skrll EMPTY_HOWTO (28),
698 1.1 skrll EMPTY_HOWTO (29),
699 1.1 skrll EMPTY_HOWTO (30),
700 1.1 skrll EMPTY_HOWTO (31),
701 1.1 skrll EMPTY_HOWTO (32),
702 1.1 skrll
703 1.1 skrll /* A 16 bit absolute relocation. */
704 1.1 skrll HOWTO (R_M32R_16_RELA, /* type */
705 1.1 skrll 0, /* rightshift */
706 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
707 1.1 skrll 16, /* bitsize */
708 1.1 skrll FALSE, /* pc_relative */
709 1.1 skrll 0, /* bitpos */
710 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
711 1.1 skrll bfd_elf_generic_reloc, /* special_function */
712 1.1 skrll "R_M32R_16_RELA", /* name */
713 1.1 skrll FALSE, /* partial_inplace */
714 1.1 skrll 0xffff, /* src_mask */
715 1.1 skrll 0xffff, /* dst_mask */
716 1.1 skrll FALSE), /* pcrel_offset */
717 1.1 skrll
718 1.1 skrll /* A 32 bit absolute relocation. */
719 1.1 skrll HOWTO (R_M32R_32_RELA, /* type */
720 1.1 skrll 0, /* rightshift */
721 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
722 1.1 skrll 32, /* bitsize */
723 1.1 skrll FALSE, /* pc_relative */
724 1.1 skrll 0, /* bitpos */
725 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
726 1.1 skrll bfd_elf_generic_reloc,/* special_function */
727 1.1 skrll "R_M32R_32_RELA", /* name */
728 1.1 skrll FALSE, /* partial_inplace */
729 1.1 skrll 0xffffffff, /* src_mask */
730 1.1 skrll 0xffffffff, /* dst_mask */
731 1.1 skrll FALSE), /* pcrel_offset */
732 1.1 skrll
733 1.1 skrll /* A 24 bit address. */
734 1.1 skrll HOWTO (R_M32R_24_RELA, /* type */
735 1.1 skrll 0, /* rightshift */
736 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
737 1.1 skrll 24, /* bitsize */
738 1.1 skrll FALSE, /* pc_relative */
739 1.1 skrll 0, /* bitpos */
740 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
741 1.1 skrll bfd_elf_generic_reloc,/* special_function */
742 1.1 skrll "R_M32R_24_RELA", /* name */
743 1.1 skrll FALSE, /* partial_inplace */
744 1.1 skrll 0xffffff, /* src_mask */
745 1.1 skrll 0xffffff, /* dst_mask */
746 1.1 skrll FALSE), /* pcrel_offset */
747 1.1 skrll
748 1.1 skrll HOWTO (R_M32R_10_PCREL_RELA, /* type */
749 1.1 skrll 2, /* rightshift */
750 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
751 1.1 skrll 10, /* bitsize */
752 1.1 skrll TRUE, /* pc_relative */
753 1.1 skrll 0, /* bitpos */
754 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
755 1.1 skrll m32r_elf_10_pcrel_reloc, /* special_function */
756 1.1 skrll "R_M32R_10_PCREL_RELA",/* name */
757 1.1 skrll FALSE, /* partial_inplace */
758 1.1 skrll 0xff, /* src_mask */
759 1.1 skrll 0xff, /* dst_mask */
760 1.1 skrll TRUE), /* pcrel_offset */
761 1.1 skrll
762 1.1 skrll /* A relative 18 bit relocation, right shifted by 2. */
763 1.1 skrll HOWTO (R_M32R_18_PCREL_RELA, /* type */
764 1.1 skrll 2, /* rightshift */
765 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
766 1.1 skrll 16, /* bitsize */
767 1.1 skrll TRUE, /* pc_relative */
768 1.1 skrll 0, /* bitpos */
769 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
770 1.1 skrll bfd_elf_generic_reloc, /* special_function */
771 1.1 skrll "R_M32R_18_PCREL_RELA",/* name */
772 1.1 skrll FALSE, /* partial_inplace */
773 1.1 skrll 0xffff, /* src_mask */
774 1.1 skrll 0xffff, /* dst_mask */
775 1.1 skrll TRUE), /* pcrel_offset */
776 1.1 skrll
777 1.1 skrll /* A relative 26 bit relocation, right shifted by 2. */
778 1.1 skrll HOWTO (R_M32R_26_PCREL_RELA, /* type */
779 1.1 skrll 2, /* rightshift */
780 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
781 1.1 skrll 26, /* bitsize */
782 1.1 skrll TRUE, /* pc_relative */
783 1.1 skrll 0, /* bitpos */
784 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
785 1.1 skrll bfd_elf_generic_reloc, /* special_function */
786 1.1 skrll "R_M32R_26_PCREL_RELA",/* name */
787 1.1 skrll FALSE, /* partial_inplace */
788 1.1 skrll 0xffffff, /* src_mask */
789 1.1 skrll 0xffffff, /* dst_mask */
790 1.1 skrll TRUE), /* pcrel_offset */
791 1.1 skrll
792 1.1 skrll /* High 16 bits of address when lower 16 is or'd in. */
793 1.1 skrll HOWTO (R_M32R_HI16_ULO_RELA, /* type */
794 1.1 skrll 16, /* rightshift */
795 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
796 1.1 skrll 16, /* bitsize */
797 1.1 skrll FALSE, /* pc_relative */
798 1.1 skrll 0, /* bitpos */
799 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
800 1.1 skrll bfd_elf_generic_reloc, /* special_function */
801 1.1 skrll "R_M32R_HI16_ULO_RELA",/* name */
802 1.1 skrll FALSE, /* partial_inplace */
803 1.1 skrll 0x0000ffff, /* src_mask */
804 1.1 skrll 0x0000ffff, /* dst_mask */
805 1.1 skrll FALSE), /* pcrel_offset */
806 1.1 skrll
807 1.1 skrll /* High 16 bits of address when lower 16 is added in. */
808 1.1 skrll HOWTO (R_M32R_HI16_SLO_RELA, /* type */
809 1.1 skrll 16, /* rightshift */
810 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
811 1.1 skrll 16, /* bitsize */
812 1.1 skrll FALSE, /* pc_relative */
813 1.1 skrll 0, /* bitpos */
814 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
815 1.1 skrll bfd_elf_generic_reloc, /* special_function */
816 1.1 skrll "R_M32R_HI16_SLO_RELA",/* name */
817 1.1 skrll FALSE, /* partial_inplace */
818 1.1 skrll 0x0000ffff, /* src_mask */
819 1.1 skrll 0x0000ffff, /* dst_mask */
820 1.1 skrll FALSE), /* pcrel_offset */
821 1.1 skrll
822 1.1 skrll /* Lower 16 bits of address. */
823 1.1 skrll HOWTO (R_M32R_LO16_RELA, /* type */
824 1.1 skrll 0, /* rightshift */
825 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
826 1.1 skrll 16, /* bitsize */
827 1.1 skrll FALSE, /* pc_relative */
828 1.1 skrll 0, /* bitpos */
829 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
830 1.1 skrll bfd_elf_generic_reloc, /* special_function */
831 1.1 skrll "R_M32R_LO16_RELA", /* name */
832 1.1 skrll FALSE, /* partial_inplace */
833 1.1 skrll 0x0000ffff, /* src_mask */
834 1.1 skrll 0x0000ffff, /* dst_mask */
835 1.1 skrll FALSE), /* pcrel_offset */
836 1.1 skrll
837 1.1 skrll /* Small data area 16 bits offset. */
838 1.1 skrll HOWTO (R_M32R_SDA16_RELA, /* type */
839 1.1 skrll 0, /* rightshift */
840 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
841 1.1 skrll 16, /* bitsize */
842 1.1 skrll FALSE, /* pc_relative */
843 1.1 skrll 0, /* bitpos */
844 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
845 1.1 skrll bfd_elf_generic_reloc, /* special_function */
846 1.1 skrll "R_M32R_SDA16_RELA", /* name */
847 1.1 skrll TRUE, /* partial_inplace */ /* FIXME: correct? */
848 1.1 skrll 0x0000ffff, /* src_mask */
849 1.1 skrll 0x0000ffff, /* dst_mask */
850 1.1 skrll FALSE), /* pcrel_offset */
851 1.1 skrll
852 1.1 skrll /* GNU extension to record C++ vtable hierarchy. */
853 1.1 skrll HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
854 1.1 skrll 0, /* rightshift */
855 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
856 1.1 skrll 0, /* bitsize */
857 1.1 skrll FALSE, /* pc_relative */
858 1.1 skrll 0, /* bitpos */
859 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
860 1.1 skrll NULL, /* special_function */
861 1.1 skrll "R_M32R_RELA_GNU_VTINHERIT", /* name */
862 1.1 skrll FALSE, /* partial_inplace */
863 1.1 skrll 0, /* src_mask */
864 1.1 skrll 0, /* dst_mask */
865 1.1 skrll FALSE), /* pcrel_offset */
866 1.1 skrll
867 1.1 skrll /* GNU extension to record C++ vtable member usage. */
868 1.1 skrll HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
869 1.1 skrll 0, /* rightshift */
870 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
871 1.1 skrll 0, /* bitsize */
872 1.1 skrll FALSE, /* pc_relative */
873 1.1 skrll 0, /* bitpos */
874 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
875 1.1 skrll _bfd_elf_rel_vtable_reloc_fn, /* special_function */
876 1.1 skrll "R_M32R_RELA_GNU_VTENTRY", /* name */
877 1.1 skrll FALSE, /* partial_inplace */
878 1.1 skrll 0, /* src_mask */
879 1.1 skrll 0, /* dst_mask */
880 1.1 skrll FALSE), /* pcrel_offset */
881 1.1 skrll
882 1.1 skrll /* A 32 bit PC relative relocation. */
883 1.1 skrll HOWTO (R_M32R_REL32, /* type */
884 1.1 skrll 0, /* rightshift */
885 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
886 1.1 skrll 32, /* bitsize */
887 1.1 skrll TRUE, /* pc_relative */
888 1.1 skrll 0, /* bitpos */
889 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
890 1.1 skrll bfd_elf_generic_reloc,/* special_function */
891 1.1 skrll "R_M32R_REL32", /* name */
892 1.1 skrll FALSE, /* partial_inplace */
893 1.1 skrll 0xffffffff, /* src_mask */
894 1.1 skrll 0xffffffff, /* dst_mask */
895 1.1 skrll TRUE), /* pcrel_offset */
896 1.1 skrll
897 1.1 skrll EMPTY_HOWTO (46),
898 1.1 skrll EMPTY_HOWTO (47),
899 1.1 skrll
900 1.1 skrll /* Like R_M32R_24, but referring to the GOT table entry for
901 1.1 skrll the symbol. */
902 1.1 skrll HOWTO (R_M32R_GOT24, /* type */
903 1.1 skrll 0, /* rightshift */
904 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
905 1.1 skrll 24, /* bitsize */
906 1.1 skrll FALSE, /* pc_relative */
907 1.1 skrll 0, /* bitpos */
908 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
909 1.1 skrll bfd_elf_generic_reloc, /* special_function */
910 1.1 skrll "R_M32R_GOT24", /* name */
911 1.1 skrll FALSE, /* partial_inplace */
912 1.1 skrll 0xffffff, /* src_mask */
913 1.1 skrll 0xffffff, /* dst_mask */
914 1.1 skrll FALSE), /* pcrel_offset */
915 1.1 skrll
916 1.1 skrll /* Like R_M32R_PCREL, but referring to the procedure linkage table
917 1.1 skrll entry for the symbol. */
918 1.1 skrll HOWTO (R_M32R_26_PLTREL, /* type */
919 1.1 skrll 2, /* rightshift */
920 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
921 1.1 skrll 24, /* bitsize */
922 1.1 skrll TRUE, /* pc_relative */
923 1.1 skrll 0, /* bitpos */
924 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
925 1.1 skrll bfd_elf_generic_reloc, /* special_function */
926 1.1 skrll "R_M32R_26_PLTREL", /* name */
927 1.1 skrll FALSE, /* partial_inplace */
928 1.1 skrll 0xffffff, /* src_mask */
929 1.1 skrll 0xffffff, /* dst_mask */
930 1.1 skrll TRUE), /* pcrel_offset */
931 1.1 skrll
932 1.1 skrll /* This is used only by the dynamic linker. The symbol should exist
933 1.1 skrll both in the object being run and in some shared library. The
934 1.1 skrll dynamic linker copies the data addressed by the symbol from the
935 1.1 skrll shared library into the object, because the object being
936 1.1 skrll run has to have the data at some particular address. */
937 1.1 skrll HOWTO (R_M32R_COPY, /* type */
938 1.1 skrll 0, /* rightshift */
939 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
940 1.1 skrll 32, /* bitsize */
941 1.1 skrll FALSE, /* pc_relative */
942 1.1 skrll 0, /* bitpos */
943 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
944 1.1 skrll bfd_elf_generic_reloc, /* special_function */
945 1.1 skrll "R_M32R_COPY", /* name */
946 1.1 skrll FALSE, /* partial_inplace */
947 1.1 skrll 0xffffffff, /* src_mask */
948 1.1 skrll 0xffffffff, /* dst_mask */
949 1.1 skrll FALSE), /* pcrel_offset */
950 1.1 skrll
951 1.1 skrll /* Like R_M32R_24, but used when setting global offset table
952 1.1 skrll entries. */
953 1.1 skrll HOWTO (R_M32R_GLOB_DAT, /* type */
954 1.1 skrll 0, /* rightshift */
955 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
956 1.1 skrll 32, /* bitsize */
957 1.1 skrll FALSE, /* pc_relative */
958 1.1 skrll 0, /* bitpos */
959 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
960 1.1 skrll bfd_elf_generic_reloc, /* special_function */
961 1.1 skrll "R_M32R_GLOB_DAT", /* name */
962 1.1 skrll FALSE, /* partial_inplace */
963 1.1 skrll 0xffffffff, /* src_mask */
964 1.1 skrll 0xffffffff, /* dst_mask */
965 1.1 skrll FALSE), /* pcrel_offset */
966 1.1 skrll
967 1.1 skrll /* Marks a procedure linkage table entry for a symbol. */
968 1.1 skrll HOWTO (R_M32R_JMP_SLOT, /* type */
969 1.1 skrll 0, /* rightshift */
970 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
971 1.1 skrll 32, /* bitsize */
972 1.1 skrll FALSE, /* pc_relative */
973 1.1 skrll 0, /* bitpos */
974 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
975 1.1 skrll bfd_elf_generic_reloc, /* special_function */
976 1.1 skrll "R_M32R_JMP_SLOT", /* name */
977 1.1 skrll FALSE, /* partial_inplace */
978 1.1 skrll 0xffffffff, /* src_mask */
979 1.1 skrll 0xffffffff, /* dst_mask */
980 1.1 skrll FALSE), /* pcrel_offset */
981 1.1 skrll
982 1.1 skrll /* Used only by the dynamic linker. When the object is run, this
983 1.1 skrll longword is set to the load address of the object, plus the
984 1.1 skrll addend. */
985 1.1 skrll HOWTO (R_M32R_RELATIVE, /* type */
986 1.1 skrll 0, /* rightshift */
987 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
988 1.1 skrll 32, /* bitsize */
989 1.1 skrll FALSE, /* pc_relative */
990 1.1 skrll 0, /* bitpos */
991 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
992 1.1 skrll bfd_elf_generic_reloc, /* special_function */
993 1.1 skrll "R_M32R_RELATIVE", /* name */
994 1.1 skrll FALSE, /* partial_inplace */
995 1.1 skrll 0xffffffff, /* src_mask */
996 1.1 skrll 0xffffffff, /* dst_mask */
997 1.1 skrll FALSE), /* pcrel_offset */
998 1.1 skrll
999 1.1 skrll HOWTO (R_M32R_GOTOFF, /* type */
1000 1.1 skrll 0, /* rightshift */
1001 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1002 1.1 skrll 24, /* bitsize */
1003 1.1 skrll FALSE, /* pc_relative */
1004 1.1 skrll 0, /* bitpos */
1005 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
1006 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1007 1.1 skrll "R_M32R_GOTOFF", /* name */
1008 1.1 skrll FALSE, /* partial_inplace */
1009 1.1 skrll 0xffffff, /* src_mask */
1010 1.1 skrll 0xffffff, /* dst_mask */
1011 1.1 skrll FALSE), /* pcrel_offset */
1012 1.1 skrll
1013 1.1 skrll /* An PC Relative 24-bit relocation used when setting PIC offset
1014 1.1 skrll table register. */
1015 1.1 skrll HOWTO (R_M32R_GOTPC24, /* type */
1016 1.1 skrll 0, /* rightshift */
1017 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1018 1.1 skrll 24, /* bitsize */
1019 1.1 skrll TRUE, /* pc_relative */
1020 1.1 skrll 0, /* bitpos */
1021 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
1022 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1023 1.1 skrll "R_M32R_GOTPC24", /* name */
1024 1.1 skrll FALSE, /* partial_inplace */
1025 1.1 skrll 0xffffff, /* src_mask */
1026 1.1 skrll 0xffffff, /* dst_mask */
1027 1.1 skrll TRUE), /* pcrel_offset */
1028 1.1 skrll
1029 1.1 skrll /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1030 1.1 skrll the symbol. */
1031 1.1 skrll HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1032 1.1 skrll 16, /* rightshift */
1033 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1034 1.1 skrll 16, /* bitsize */
1035 1.1 skrll FALSE, /* pc_relative */
1036 1.1 skrll 0, /* bitpos */
1037 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1038 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1039 1.1 skrll "R_M32R_GOT16_HI_ULO", /* name */
1040 1.1 skrll FALSE, /* partial_inplace */
1041 1.1 skrll 0x0000ffff, /* src_mask */
1042 1.1 skrll 0x0000ffff, /* dst_mask */
1043 1.1 skrll FALSE), /* pcrel_offset */
1044 1.1 skrll
1045 1.1 skrll /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1046 1.1 skrll the symbol. */
1047 1.1 skrll HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1048 1.1 skrll 16, /* rightshift */
1049 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 1.1 skrll 16, /* bitsize */
1051 1.1 skrll FALSE, /* pc_relative */
1052 1.1 skrll 0, /* bitpos */
1053 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1054 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1055 1.1 skrll "R_M32R_GOT16_HI_SLO", /* name */
1056 1.1 skrll FALSE, /* partial_inplace */
1057 1.1 skrll 0x0000ffff, /* src_mask */
1058 1.1 skrll 0x0000ffff, /* dst_mask */
1059 1.1 skrll FALSE), /* pcrel_offset */
1060 1.1 skrll
1061 1.1 skrll /* Like R_M32R_LO16, but referring to the GOT table entry for
1062 1.1 skrll the symbol. */
1063 1.1 skrll HOWTO (R_M32R_GOT16_LO, /* type */
1064 1.1 skrll 0, /* rightshift */
1065 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1066 1.1 skrll 16, /* bitsize */
1067 1.1 skrll FALSE, /* pc_relative */
1068 1.1 skrll 0, /* bitpos */
1069 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1070 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1071 1.1 skrll "R_M32R_GOT16_LO", /* name */
1072 1.1 skrll FALSE, /* partial_inplace */
1073 1.1 skrll 0x0000ffff, /* src_mask */
1074 1.1 skrll 0x0000ffff, /* dst_mask */
1075 1.1 skrll FALSE), /* pcrel_offset */
1076 1.1 skrll
1077 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1078 1.1 skrll Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1079 1.1 skrll the symbol. */
1080 1.1 skrll HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1081 1.1 skrll 16, /* rightshift */
1082 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1083 1.1 skrll 16, /* bitsize */
1084 1.1 skrll FALSE, /* pc_relative */
1085 1.1 skrll 0, /* bitpos */
1086 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1087 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1088 1.1 skrll "R_M32R_GOTPC_HI_ULO", /* name */
1089 1.1 skrll FALSE, /* partial_inplace */
1090 1.1 skrll 0x0000ffff, /* src_mask */
1091 1.1 skrll 0x0000ffff, /* dst_mask */
1092 1.1 skrll TRUE), /* pcrel_offset */
1093 1.1 skrll
1094 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1095 1.1 skrll Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1096 1.1 skrll the symbol. */
1097 1.1 skrll HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1098 1.1 skrll 16, /* rightshift */
1099 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1100 1.1 skrll 16, /* bitsize */
1101 1.1 skrll FALSE, /* pc_relative */
1102 1.1 skrll 0, /* bitpos */
1103 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1104 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1105 1.1 skrll "R_M32R_GOTPC_HI_SLO", /* name */
1106 1.1 skrll FALSE, /* partial_inplace */
1107 1.1 skrll 0x0000ffff, /* src_mask */
1108 1.1 skrll 0x0000ffff, /* dst_mask */
1109 1.1 skrll TRUE), /* pcrel_offset */
1110 1.1 skrll
1111 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1112 1.1 skrll Like R_M32R_LO16, but referring to the GOT table entry for
1113 1.1 skrll the symbol. */
1114 1.1 skrll HOWTO (R_M32R_GOTPC_LO, /* type */
1115 1.1 skrll 0, /* rightshift */
1116 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1117 1.1 skrll 16, /* bitsize */
1118 1.1 skrll FALSE, /* pc_relative */
1119 1.1 skrll 0, /* bitpos */
1120 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1121 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1122 1.1 skrll "R_M32R_GOTPC_LO", /* name */
1123 1.1 skrll FALSE, /* partial_inplace */
1124 1.1 skrll 0x0000ffff, /* src_mask */
1125 1.1 skrll 0x0000ffff, /* dst_mask */
1126 1.1 skrll TRUE), /* pcrel_offset */
1127 1.1 skrll
1128 1.1 skrll HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1129 1.1 skrll 16, /* rightshift */
1130 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1131 1.1 skrll 16, /* bitsize */
1132 1.1 skrll FALSE, /* pc_relative */
1133 1.1 skrll 0, /* bitpos */
1134 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1135 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1136 1.1 skrll "R_M32R_GOTOFF_HI_ULO",/* name */
1137 1.1 skrll FALSE, /* partial_inplace */
1138 1.1 skrll 0x0000ffff, /* src_mask */
1139 1.1 skrll 0x0000ffff, /* dst_mask */
1140 1.1 skrll FALSE), /* pcrel_offset */
1141 1.1 skrll
1142 1.1 skrll HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1143 1.1 skrll 16, /* rightshift */
1144 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1145 1.1 skrll 16, /* bitsize */
1146 1.1 skrll FALSE, /* pc_relative */
1147 1.1 skrll 0, /* bitpos */
1148 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1149 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1150 1.1 skrll "R_M32R_GOTOFF_HI_SLO",/* name */
1151 1.1 skrll FALSE, /* partial_inplace */
1152 1.1 skrll 0x0000ffff, /* src_mask */
1153 1.1 skrll 0x0000ffff, /* dst_mask */
1154 1.1 skrll FALSE), /* pcrel_offset */
1155 1.1 skrll
1156 1.1 skrll HOWTO (R_M32R_GOTOFF_LO, /* type */
1157 1.1 skrll 0, /* rightshift */
1158 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1159 1.1 skrll 16, /* bitsize */
1160 1.1 skrll FALSE, /* pc_relative */
1161 1.1 skrll 0, /* bitpos */
1162 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1163 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1164 1.1 skrll "R_M32R_GOTOFF_LO", /* name */
1165 1.1 skrll FALSE, /* partial_inplace */
1166 1.1 skrll 0x0000ffff, /* src_mask */
1167 1.1 skrll 0x0000ffff, /* dst_mask */
1168 1.1 skrll FALSE), /* pcrel_offset */
1169 1.1 skrll };
1170 1.1 skrll
1171 1.1 skrll /* Map BFD reloc types to M32R ELF reloc types. */
1172 1.1 skrll
1173 1.1 skrll struct m32r_reloc_map
1174 1.1 skrll {
1175 1.1 skrll bfd_reloc_code_real_type bfd_reloc_val;
1176 1.1 skrll unsigned char elf_reloc_val;
1177 1.1 skrll };
1178 1.1 skrll
1179 1.1 skrll #ifdef USE_M32R_OLD_RELOC
1180 1.1 skrll static const struct m32r_reloc_map m32r_reloc_map_old[] =
1181 1.1 skrll {
1182 1.1 skrll { BFD_RELOC_NONE, R_M32R_NONE },
1183 1.1 skrll { BFD_RELOC_16, R_M32R_16 },
1184 1.1 skrll { BFD_RELOC_32, R_M32R_32 },
1185 1.1 skrll { BFD_RELOC_M32R_24, R_M32R_24 },
1186 1.1 skrll { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1187 1.1 skrll { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1188 1.1 skrll { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1189 1.1 skrll { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1190 1.1 skrll { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1191 1.1 skrll { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1192 1.1 skrll { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1193 1.1 skrll { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1194 1.1 skrll { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1195 1.1 skrll };
1196 1.1 skrll #else
1197 1.1 skrll static const struct m32r_reloc_map m32r_reloc_map[] =
1198 1.1 skrll {
1199 1.1 skrll { BFD_RELOC_NONE, R_M32R_NONE },
1200 1.1 skrll { BFD_RELOC_16, R_M32R_16_RELA },
1201 1.1 skrll { BFD_RELOC_32, R_M32R_32_RELA },
1202 1.1 skrll { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1203 1.1 skrll { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1204 1.1 skrll { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1205 1.1 skrll { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1206 1.1 skrll { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1207 1.1 skrll { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1208 1.1 skrll { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1209 1.1 skrll { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1210 1.1 skrll { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1211 1.1 skrll { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1212 1.1 skrll { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1213 1.1 skrll
1214 1.1 skrll { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1215 1.1 skrll { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1216 1.1 skrll { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1217 1.1 skrll { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1218 1.1 skrll { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1219 1.1 skrll { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1220 1.1 skrll { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1221 1.1 skrll { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1222 1.1 skrll { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1223 1.1 skrll { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1224 1.1 skrll { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1225 1.1 skrll { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1226 1.1 skrll { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1227 1.1 skrll { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1228 1.1 skrll { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1229 1.1 skrll { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1230 1.1 skrll { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1231 1.1 skrll };
1232 1.1 skrll #endif
1233 1.1 skrll
1234 1.1 skrll static reloc_howto_type *
1235 1.1 skrll bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1236 1.1 skrll bfd_reloc_code_real_type code)
1237 1.1 skrll {
1238 1.1 skrll unsigned int i;
1239 1.1 skrll
1240 1.1 skrll #ifdef USE_M32R_OLD_RELOC
1241 1.1 skrll for (i = 0;
1242 1.1 skrll i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1243 1.1 skrll i++)
1244 1.1 skrll if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1245 1.1 skrll return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1246 1.1 skrll
1247 1.1 skrll #else /* ! USE_M32R_OLD_RELOC */
1248 1.1 skrll
1249 1.1 skrll for (i = 0;
1250 1.1 skrll i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1251 1.1 skrll i++)
1252 1.1 skrll if (m32r_reloc_map[i].bfd_reloc_val == code)
1253 1.1 skrll return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1254 1.1 skrll #endif
1255 1.1 skrll
1256 1.1 skrll return NULL;
1257 1.1 skrll }
1258 1.1 skrll
1259 1.1 skrll static reloc_howto_type *
1260 1.1 skrll bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1261 1.1 skrll const char *r_name)
1262 1.1 skrll {
1263 1.1 skrll unsigned int i;
1264 1.1 skrll
1265 1.1 skrll for (i = 0;
1266 1.1 skrll i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1267 1.1 skrll i++)
1268 1.1 skrll if (m32r_elf_howto_table[i].name != NULL
1269 1.1 skrll && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1270 1.1 skrll return &m32r_elf_howto_table[i];
1271 1.1 skrll
1272 1.1 skrll return NULL;
1273 1.1 skrll }
1274 1.1 skrll
1275 1.1 skrll /* Set the howto pointer for an M32R ELF reloc. */
1276 1.1 skrll
1277 1.1 skrll static void
1278 1.1 skrll m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1279 1.1 skrll arelent *cache_ptr,
1280 1.1 skrll Elf_Internal_Rela *dst)
1281 1.1 skrll {
1282 1.1 skrll unsigned int r_type;
1283 1.1.1.4 christos
1284 1.1.1.4 christos r_type = ELF32_R_TYPE (dst->r_info);
1285 1.1.1.4 christos if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1286 1.1.1.4 christos {
1287 1.1.1.4 christos _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
1288 1.1 skrll r_type = 0;
1289 1.1 skrll }
1290 1.1 skrll cache_ptr->howto = &m32r_elf_howto_table[r_type];
1291 1.1 skrll }
1292 1.1 skrll
1293 1.1 skrll static void
1294 1.1 skrll m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1295 1.1 skrll arelent *cache_ptr,
1296 1.1 skrll Elf_Internal_Rela *dst)
1297 1.1 skrll {
1298 1.1 skrll BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1299 1.1 skrll || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1300 1.1 skrll && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1301 1.1 skrll cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1302 1.1 skrll }
1303 1.1 skrll
1304 1.1 skrll
1305 1.1 skrll /* Given a BFD section, try to locate the corresponding ELF section
1307 1.1 skrll index. */
1308 1.1 skrll
1309 1.1 skrll static bfd_boolean
1310 1.1 skrll _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1311 1.1 skrll asection *sec,
1312 1.1 skrll int *retval)
1313 1.1 skrll {
1314 1.1 skrll if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1315 1.1 skrll {
1316 1.1 skrll *retval = SHN_M32R_SCOMMON;
1317 1.1 skrll return TRUE;
1318 1.1 skrll }
1319 1.1 skrll return FALSE;
1320 1.1 skrll }
1321 1.1 skrll
1322 1.1 skrll /* M32R ELF uses two common sections. One is the usual one, and the other
1323 1.1 skrll is for small objects. All the small objects are kept together, and then
1324 1.1 skrll referenced via one register, which yields faster assembler code. It is
1325 1.1 skrll up to the compiler to emit an instruction to load the register with
1326 1.1 skrll _SDA_BASE. This is what we use for the small common section. This
1327 1.1 skrll approach is copied from elf32-mips.c. */
1328 1.1 skrll static asection m32r_elf_scom_section;
1329 1.1 skrll static asymbol m32r_elf_scom_symbol;
1330 1.1 skrll static asymbol *m32r_elf_scom_symbol_ptr;
1331 1.1 skrll
1332 1.1 skrll /* Handle the special M32R section numbers that a symbol may use. */
1333 1.1 skrll
1334 1.1 skrll static void
1335 1.1 skrll _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1336 1.1 skrll {
1337 1.1 skrll elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1338 1.1 skrll
1339 1.1 skrll switch (elfsym->internal_elf_sym.st_shndx)
1340 1.1 skrll {
1341 1.1 skrll case SHN_M32R_SCOMMON:
1342 1.1 skrll if (m32r_elf_scom_section.name == NULL)
1343 1.1 skrll {
1344 1.1 skrll /* Initialize the small common section. */
1345 1.1 skrll m32r_elf_scom_section.name = ".scommon";
1346 1.1 skrll m32r_elf_scom_section.flags = SEC_IS_COMMON;
1347 1.1 skrll m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1348 1.1 skrll m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1349 1.1 skrll m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1350 1.1 skrll m32r_elf_scom_symbol.name = ".scommon";
1351 1.1 skrll m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1352 1.1 skrll m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1353 1.1 skrll m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1354 1.1 skrll }
1355 1.1 skrll asym->section = &m32r_elf_scom_section;
1356 1.1 skrll asym->value = elfsym->internal_elf_sym.st_size;
1357 1.1 skrll break;
1358 1.1 skrll }
1359 1.1 skrll }
1360 1.1 skrll
1361 1.1 skrll /* Hook called by the linker routine which adds symbols from an object
1362 1.1 skrll file. We must handle the special M32R section numbers here.
1363 1.1 skrll We also keep watching for whether we need to create the sdata special
1364 1.1 skrll linker sections. */
1365 1.1 skrll
1366 1.1 skrll static bfd_boolean
1367 1.1 skrll m32r_elf_add_symbol_hook (bfd *abfd,
1368 1.1 skrll struct bfd_link_info *info,
1369 1.1 skrll Elf_Internal_Sym *sym,
1370 1.1 skrll const char **namep,
1371 1.1 skrll flagword *flagsp ATTRIBUTE_UNUSED,
1372 1.1.1.4 christos asection **secp,
1373 1.1 skrll bfd_vma *valp)
1374 1.1 skrll {
1375 1.1 skrll if (! bfd_link_relocatable (info)
1376 1.1 skrll && (*namep)[0] == '_' && (*namep)[1] == 'S'
1377 1.1 skrll && strcmp (*namep, "_SDA_BASE_") == 0
1378 1.1 skrll && is_elf_hash_table (info->hash))
1379 1.1 skrll {
1380 1.1 skrll /* This is simpler than using _bfd_elf_create_linker_section
1381 1.1 skrll (our needs are simpler than ppc's needs). Also
1382 1.1 skrll _bfd_elf_create_linker_section currently has a bug where if a .sdata
1383 1.1 skrll section already exists a new one is created that follows it which
1384 1.1 skrll screws of _SDA_BASE_ address calcs because output_offset != 0. */
1385 1.1 skrll struct elf_link_hash_entry *h;
1386 1.1 skrll struct bfd_link_hash_entry *bh;
1387 1.1 skrll asection *s = bfd_get_section_by_name (abfd, ".sdata");
1388 1.1 skrll
1389 1.1 skrll /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1390 1.1 skrll if (s == NULL)
1391 1.1 skrll {
1392 1.1 skrll flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1393 1.1 skrll | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1394 1.1 skrll
1395 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1396 1.1.1.4 christos flags);
1397 1.1.1.4 christos if (s == NULL)
1398 1.1 skrll return FALSE;
1399 1.1 skrll if (! bfd_set_section_alignment (abfd, s, 2))
1400 1.1 skrll return FALSE;
1401 1.1 skrll }
1402 1.1 skrll
1403 1.1 skrll bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1404 1.1 skrll FALSE, FALSE, FALSE);
1405 1.1 skrll
1406 1.1 skrll if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1407 1.1 skrll && !(_bfd_generic_link_add_one_symbol (info,
1408 1.1 skrll abfd,
1409 1.1 skrll "_SDA_BASE_",
1410 1.1 skrll BSF_GLOBAL,
1411 1.1 skrll s,
1412 1.1 skrll (bfd_vma) 32768,
1413 1.1 skrll NULL,
1414 1.1 skrll FALSE,
1415 1.1 skrll get_elf_backend_data (abfd)->collect,
1416 1.1 skrll &bh)))
1417 1.1 skrll return FALSE;
1418 1.1 skrll h = (struct elf_link_hash_entry *) bh;
1419 1.1 skrll h->type = STT_OBJECT;
1420 1.1 skrll }
1421 1.1 skrll
1422 1.1 skrll switch (sym->st_shndx)
1423 1.1 skrll {
1424 1.1 skrll case SHN_M32R_SCOMMON:
1425 1.1 skrll *secp = bfd_make_section_old_way (abfd, ".scommon");
1426 1.1 skrll (*secp)->flags |= SEC_IS_COMMON;
1427 1.1 skrll *valp = sym->st_size;
1428 1.1 skrll break;
1429 1.1 skrll }
1430 1.1 skrll
1431 1.1 skrll return TRUE;
1432 1.1 skrll }
1433 1.1 skrll
1434 1.1 skrll /* We have to figure out the SDA_BASE value, so that we can adjust the
1435 1.1 skrll symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1436 1.1 skrll BFD. If we can't find it, we're stuck. We cache it in the ELF
1437 1.1 skrll target data. We don't need to adjust the symbol value for an
1438 1.1 skrll external symbol if we are producing relocatable output. */
1439 1.1 skrll
1440 1.1 skrll static bfd_reloc_status_type
1441 1.1 skrll m32r_elf_final_sda_base (bfd *output_bfd,
1442 1.1 skrll struct bfd_link_info *info,
1443 1.1 skrll const char **error_message,
1444 1.1 skrll bfd_vma *psb)
1445 1.1 skrll {
1446 1.1 skrll if (elf_gp (output_bfd) == 0)
1447 1.1 skrll {
1448 1.1 skrll struct bfd_link_hash_entry *h;
1449 1.1 skrll
1450 1.1 skrll h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1451 1.1 skrll if (h != NULL && h->type == bfd_link_hash_defined)
1452 1.1 skrll elf_gp (output_bfd) = (h->u.def.value
1453 1.1 skrll + h->u.def.section->output_section->vma
1454 1.1 skrll + h->u.def.section->output_offset);
1455 1.1 skrll else
1456 1.1 skrll {
1457 1.1 skrll /* Only get the error once. */
1458 1.1 skrll *psb = elf_gp (output_bfd) = 4;
1459 1.1 skrll *error_message =
1460 1.1 skrll (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1461 1.1 skrll return bfd_reloc_dangerous;
1462 1.1 skrll }
1463 1.1 skrll }
1464 1.1 skrll *psb = elf_gp (output_bfd);
1465 1.1 skrll return bfd_reloc_ok;
1466 1.1 skrll }
1467 1.1 skrll
1468 1.1 skrll /* Return size of a PLT entry. */
1470 1.1 skrll #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1471 1.1 skrll
1472 1.1 skrll /* The m32r linker needs to keep track of the number of relocs that it
1473 1.1 skrll decides to copy in check_relocs for each symbol. This is so that
1474 1.1 skrll it can discard PC relative relocs if it doesn't need them when
1475 1.1 skrll linking with -Bsymbolic. We store the information in a field
1476 1.1 skrll extending the regular ELF linker hash table. */
1477 1.1 skrll
1478 1.1 skrll /* This structure keeps track of the number of PC relative relocs we
1479 1.1 skrll have copied for a given symbol. */
1480 1.1 skrll
1481 1.1 skrll struct elf_m32r_pcrel_relocs_copied
1482 1.1 skrll {
1483 1.1 skrll /* Next section. */
1484 1.1 skrll struct elf_m32r_pcrel_relocs_copied *next;
1485 1.1 skrll /* A section in dynobj. */
1486 1.1 skrll asection *section;
1487 1.1 skrll /* Number of relocs copied in this section. */
1488 1.1 skrll bfd_size_type count;
1489 1.1 skrll };
1490 1.1 skrll
1491 1.1 skrll /* The sh linker needs to keep track of the number of relocs that it
1492 1.1 skrll decides to copy as dynamic relocs in check_relocs for each symbol.
1493 1.1 skrll This is so that it can later discard them if they are found to be
1494 1.1 skrll unnecessary. We store the information in a field extending the
1495 1.1 skrll regular ELF linker hash table. */
1496 1.1 skrll
1497 1.1 skrll struct elf_m32r_dyn_relocs
1498 1.1 skrll {
1499 1.1 skrll struct elf_m32r_dyn_relocs *next;
1500 1.1 skrll
1501 1.1 skrll /* The input section of the reloc. */
1502 1.1 skrll asection *sec;
1503 1.1 skrll
1504 1.1 skrll /* Total number of relocs copied for the input section. */
1505 1.1 skrll bfd_size_type count;
1506 1.1 skrll
1507 1.1 skrll /* Number of pc-relative relocs copied for the input section. */
1508 1.1 skrll bfd_size_type pc_count;
1509 1.1 skrll };
1510 1.1 skrll
1511 1.1 skrll
1512 1.1 skrll /* m32r ELF linker hash entry. */
1513 1.1 skrll
1514 1.1 skrll struct elf_m32r_link_hash_entry
1515 1.1 skrll {
1516 1.1 skrll struct elf_link_hash_entry root;
1517 1.1 skrll
1518 1.1 skrll /* Track dynamic relocs copied for this symbol. */
1519 1.1 skrll struct elf_m32r_dyn_relocs *dyn_relocs;
1520 1.1 skrll };
1521 1.1 skrll
1522 1.1 skrll /* m32r ELF linker hash table. */
1523 1.1 skrll
1524 1.1 skrll struct elf_m32r_link_hash_table
1525 1.1 skrll {
1526 1.1 skrll struct elf_link_hash_table root;
1527 1.1 skrll
1528 1.1 skrll /* Short-cuts to get to dynamic linker sections. */
1529 1.1 skrll asection *sgot;
1530 1.1 skrll asection *sgotplt;
1531 1.1 skrll asection *srelgot;
1532 1.1 skrll asection *splt;
1533 1.1.1.2 christos asection *srelplt;
1534 1.1.1.2 christos asection *sdynbss;
1535 1.1 skrll asection *srelbss;
1536 1.1 skrll
1537 1.1 skrll /* Small local sym cache. */
1538 1.1 skrll struct sym_cache sym_cache;
1539 1.1 skrll };
1540 1.1 skrll
1541 1.1 skrll /* Traverse an m32r ELF linker hash table. */
1542 1.1 skrll
1543 1.1 skrll #define m32r_elf_link_hash_traverse(table, func, info) \
1544 1.1 skrll (elf_link_hash_traverse \
1545 1.1 skrll (&(table)->root, \
1546 1.1 skrll (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1547 1.1 skrll (info)))
1548 1.1.1.2 christos
1549 1.1.1.2 christos /* Get the m32r ELF linker hash table from a link_info structure. */
1550 1.1 skrll
1551 1.1 skrll #define m32r_elf_hash_table(p) \
1552 1.1 skrll (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1553 1.1 skrll == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1554 1.1 skrll
1555 1.1 skrll /* Create an entry in an m32r ELF linker hash table. */
1556 1.1 skrll
1557 1.1 skrll static struct bfd_hash_entry *
1558 1.1 skrll m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1559 1.1 skrll struct bfd_hash_table *table,
1560 1.1 skrll const char *string)
1561 1.1 skrll {
1562 1.1 skrll struct elf_m32r_link_hash_entry *ret =
1563 1.1 skrll (struct elf_m32r_link_hash_entry *) entry;
1564 1.1 skrll
1565 1.1 skrll /* Allocate the structure if it has not already been allocated by a
1566 1.1 skrll subclass. */
1567 1.1 skrll if (ret == NULL)
1568 1.1 skrll ret = bfd_hash_allocate (table,
1569 1.1 skrll sizeof (struct elf_m32r_link_hash_entry));
1570 1.1 skrll if (ret == NULL)
1571 1.1 skrll return NULL;
1572 1.1 skrll
1573 1.1 skrll /* Call the allocation method of the superclass. */
1574 1.1 skrll ret = ((struct elf_m32r_link_hash_entry *)
1575 1.1 skrll _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1576 1.1 skrll table, string));
1577 1.1 skrll if (ret != NULL)
1578 1.1 skrll {
1579 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1580 1.1 skrll
1581 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) ret;
1582 1.1 skrll eh->dyn_relocs = NULL;
1583 1.1 skrll }
1584 1.1 skrll
1585 1.1 skrll return (struct bfd_hash_entry *) ret;
1586 1.1 skrll }
1587 1.1 skrll
1588 1.1 skrll /* Create an m32r ELF linker hash table. */
1589 1.1 skrll
1590 1.1 skrll static struct bfd_link_hash_table *
1591 1.1 skrll m32r_elf_link_hash_table_create (bfd *abfd)
1592 1.1.1.4 christos {
1593 1.1 skrll struct elf_m32r_link_hash_table *ret;
1594 1.1 skrll bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1595 1.1 skrll
1596 1.1 skrll ret = bfd_zmalloc (amt);
1597 1.1 skrll if (ret == NULL)
1598 1.1.1.2 christos return NULL;
1599 1.1.1.2 christos
1600 1.1 skrll if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1601 1.1 skrll m32r_elf_link_hash_newfunc,
1602 1.1 skrll sizeof (struct elf_m32r_link_hash_entry),
1603 1.1 skrll M32R_ELF_DATA))
1604 1.1 skrll {
1605 1.1 skrll free (ret);
1606 1.1 skrll return NULL;
1607 1.1 skrll }
1608 1.1 skrll
1609 1.1 skrll return &ret->root.root;
1610 1.1 skrll }
1611 1.1 skrll
1612 1.1 skrll /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1613 1.1 skrll shortcuts to them in our hash table. */
1614 1.1 skrll
1615 1.1 skrll static bfd_boolean
1616 1.1 skrll create_got_section (bfd *dynobj, struct bfd_link_info *info)
1617 1.1 skrll {
1618 1.1 skrll struct elf_m32r_link_hash_table *htab;
1619 1.1 skrll
1620 1.1.1.2 christos if (! _bfd_elf_create_got_section (dynobj, info))
1621 1.1.1.2 christos return FALSE;
1622 1.1.1.2 christos
1623 1.1.1.3 christos htab = m32r_elf_hash_table (info);
1624 1.1.1.3 christos if (htab == NULL)
1625 1.1.1.3 christos return FALSE;
1626 1.1.1.2 christos
1627 1.1 skrll htab->sgot = bfd_get_linker_section (dynobj, ".got");
1628 1.1 skrll htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1629 1.1 skrll htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
1630 1.1 skrll if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1631 1.1 skrll abort ();
1632 1.1 skrll
1633 1.1 skrll return TRUE;
1634 1.1 skrll }
1635 1.1 skrll
1636 1.1 skrll /* Create dynamic sections when linking against a dynamic object. */
1637 1.1 skrll
1638 1.1 skrll static bfd_boolean
1639 1.1 skrll m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1640 1.1 skrll {
1641 1.1 skrll struct elf_m32r_link_hash_table *htab;
1642 1.1 skrll flagword flags, pltflags;
1643 1.1 skrll asection *s;
1644 1.1.1.2 christos const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1645 1.1.1.2 christos int ptralign = 2; /* 32bit */
1646 1.1 skrll
1647 1.1 skrll htab = m32r_elf_hash_table (info);
1648 1.1 skrll if (htab == NULL)
1649 1.1 skrll return FALSE;
1650 1.1 skrll
1651 1.1 skrll /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1652 1.1 skrll .rel[a].bss sections. */
1653 1.1 skrll flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1654 1.1 skrll | SEC_LINKER_CREATED);
1655 1.1 skrll
1656 1.1 skrll pltflags = flags;
1657 1.1 skrll pltflags |= SEC_CODE;
1658 1.1 skrll if (bed->plt_not_loaded)
1659 1.1.1.3 christos pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1660 1.1 skrll if (bed->plt_readonly)
1661 1.1 skrll pltflags |= SEC_READONLY;
1662 1.1 skrll
1663 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1664 1.1 skrll htab->splt = s;
1665 1.1 skrll if (s == NULL
1666 1.1 skrll || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1667 1.1 skrll return FALSE;
1668 1.1 skrll
1669 1.1 skrll if (bed->want_plt_sym)
1670 1.1 skrll {
1671 1.1 skrll /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1672 1.1 skrll .plt section. */
1673 1.1 skrll struct bfd_link_hash_entry *bh = NULL;
1674 1.1 skrll struct elf_link_hash_entry *h;
1675 1.1 skrll
1676 1.1 skrll if (! (_bfd_generic_link_add_one_symbol
1677 1.1 skrll (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1678 1.1 skrll (bfd_vma) 0, NULL, FALSE,
1679 1.1 skrll get_elf_backend_data (abfd)->collect, &bh)))
1680 1.1 skrll return FALSE;
1681 1.1 skrll h = (struct elf_link_hash_entry *) bh;
1682 1.1.1.4 christos h->def_regular = 1;
1683 1.1 skrll h->type = STT_OBJECT;
1684 1.1 skrll htab->root.hplt = h;
1685 1.1 skrll
1686 1.1 skrll if (bfd_link_pic (info)
1687 1.1.1.3 christos && ! bfd_elf_link_record_dynamic_symbol (info, h))
1688 1.1.1.3 christos return FALSE;
1689 1.1.1.3 christos }
1690 1.1.1.3 christos
1691 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd,
1692 1.1 skrll bed->default_use_rela_p
1693 1.1 skrll ? ".rela.plt" : ".rel.plt",
1694 1.1 skrll flags | SEC_READONLY);
1695 1.1 skrll htab->srelplt = s;
1696 1.1 skrll if (s == NULL
1697 1.1 skrll || ! bfd_set_section_alignment (abfd, s, ptralign))
1698 1.1 skrll return FALSE;
1699 1.1 skrll
1700 1.1 skrll if (htab->sgot == NULL
1701 1.1 skrll && ! create_got_section (abfd, info))
1702 1.1 skrll return FALSE;
1703 1.1 skrll
1704 1.1 skrll if (bed->want_dynbss)
1705 1.1 skrll {
1706 1.1 skrll /* The .dynbss section is a place to put symbols which are defined
1707 1.1 skrll by dynamic objects, are referenced by regular objects, and are
1708 1.1.1.3 christos not functions. We must allocate space for them in the process
1709 1.1.1.3 christos image and use a R_*_COPY reloc to tell the dynamic linker to
1710 1.1 skrll initialize them at run time. The linker script puts the .dynbss
1711 1.1 skrll section into the .bss section of the final image. */
1712 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1713 1.1 skrll SEC_ALLOC | SEC_LINKER_CREATED);
1714 1.1 skrll htab->sdynbss = s;
1715 1.1 skrll if (s == NULL)
1716 1.1 skrll return FALSE;
1717 1.1 skrll /* The .rel[a].bss section holds copy relocs. This section is not
1718 1.1 skrll normally needed. We need to create it here, though, so that the
1719 1.1 skrll linker will map it to an output section. We can't just create it
1720 1.1 skrll only if we need it, because we will not know whether we need it
1721 1.1 skrll until we have seen all the input files, and the first time the
1722 1.1 skrll main linker code calls BFD after examining all the input files
1723 1.1 skrll (size_dynamic_sections) the input sections have already been
1724 1.1.1.4 christos mapped to the output sections. If the section turns out not to
1725 1.1 skrll be needed, we can discard it later. We will never need this
1726 1.1.1.3 christos section when generating a shared object, since they do not use
1727 1.1.1.3 christos copy relocs. */
1728 1.1.1.3 christos if (! bfd_link_pic (info))
1729 1.1.1.3 christos {
1730 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd,
1731 1.1 skrll (bed->default_use_rela_p
1732 1.1 skrll ? ".rela.bss" : ".rel.bss"),
1733 1.1 skrll flags | SEC_READONLY);
1734 1.1 skrll htab->srelbss = s;
1735 1.1 skrll if (s == NULL
1736 1.1 skrll || ! bfd_set_section_alignment (abfd, s, ptralign))
1737 1.1 skrll return FALSE;
1738 1.1 skrll }
1739 1.1 skrll }
1740 1.1 skrll
1741 1.1 skrll return TRUE;
1742 1.1 skrll }
1743 1.1 skrll
1744 1.1 skrll /* Copy the extra info we tack onto an elf_link_hash_entry. */
1745 1.1 skrll
1746 1.1 skrll static void
1747 1.1 skrll m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1748 1.1 skrll struct elf_link_hash_entry *dir,
1749 1.1 skrll struct elf_link_hash_entry *ind)
1750 1.1 skrll {
1751 1.1 skrll struct elf_m32r_link_hash_entry * edir;
1752 1.1 skrll struct elf_m32r_link_hash_entry * eind;
1753 1.1 skrll
1754 1.1 skrll edir = (struct elf_m32r_link_hash_entry *) dir;
1755 1.1 skrll eind = (struct elf_m32r_link_hash_entry *) ind;
1756 1.1 skrll
1757 1.1 skrll if (eind->dyn_relocs != NULL)
1758 1.1 skrll {
1759 1.1 skrll if (edir->dyn_relocs != NULL)
1760 1.1 skrll {
1761 1.1 skrll struct elf_m32r_dyn_relocs **pp;
1762 1.1 skrll struct elf_m32r_dyn_relocs *p;
1763 1.1 skrll
1764 1.1 skrll /* Add reloc counts against the indirect sym to the direct sym
1765 1.1 skrll list. Merge any entries against the same section. */
1766 1.1 skrll for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1767 1.1 skrll {
1768 1.1 skrll struct elf_m32r_dyn_relocs *q;
1769 1.1 skrll
1770 1.1 skrll for (q = edir->dyn_relocs; q != NULL; q = q->next)
1771 1.1 skrll if (q->sec == p->sec)
1772 1.1 skrll {
1773 1.1 skrll q->pc_count += p->pc_count;
1774 1.1 skrll q->count += p->count;
1775 1.1 skrll *pp = p->next;
1776 1.1 skrll break;
1777 1.1 skrll }
1778 1.1 skrll if (q == NULL)
1779 1.1 skrll pp = &p->next;
1780 1.1 skrll }
1781 1.1 skrll *pp = edir->dyn_relocs;
1782 1.1 skrll }
1783 1.1 skrll
1784 1.1 skrll edir->dyn_relocs = eind->dyn_relocs;
1785 1.1 skrll eind->dyn_relocs = NULL;
1786 1.1 skrll }
1787 1.1 skrll
1788 1.1 skrll _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1789 1.1 skrll }
1790 1.1 skrll
1791 1.1 skrll
1792 1.1 skrll /* Adjust a symbol defined by a dynamic object and referenced by a
1794 1.1 skrll regular object. The current definition is in some section of the
1795 1.1 skrll dynamic object, but we're not including those sections. We have to
1796 1.1 skrll change the definition to something the rest of the link can
1797 1.1 skrll understand. */
1798 1.1 skrll
1799 1.1 skrll static bfd_boolean
1800 1.1 skrll m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1801 1.1 skrll struct elf_link_hash_entry *h)
1802 1.1 skrll {
1803 1.1 skrll struct elf_m32r_link_hash_table *htab;
1804 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1805 1.1 skrll struct elf_m32r_dyn_relocs *p;
1806 1.1 skrll bfd *dynobj;
1807 1.1 skrll asection *s;
1808 1.1 skrll
1809 1.1 skrll #ifdef DEBUG_PIC
1810 1.1 skrll printf ("m32r_elf_adjust_dynamic_symbol()\n");
1811 1.1 skrll #endif
1812 1.1 skrll
1813 1.1 skrll dynobj = elf_hash_table (info)->dynobj;
1814 1.1 skrll
1815 1.1 skrll /* Make sure we know what is going on here. */
1816 1.1 skrll BFD_ASSERT (dynobj != NULL
1817 1.1 skrll && (h->needs_plt
1818 1.1 skrll || h->u.weakdef != NULL
1819 1.1 skrll || (h->def_dynamic
1820 1.1 skrll && h->ref_regular
1821 1.1 skrll && !h->def_regular)));
1822 1.1 skrll
1823 1.1 skrll /* If this is a function, put it in the procedure linkage table. We
1824 1.1.1.4 christos will fill in the contents of the procedure linkage table later,
1825 1.1 skrll when we know the address of the .got section. */
1826 1.1 skrll if (h->type == STT_FUNC
1827 1.1 skrll || h->needs_plt)
1828 1.1 skrll {
1829 1.1 skrll if (! bfd_link_pic (info)
1830 1.1 skrll && !h->def_dynamic
1831 1.1 skrll && !h->ref_dynamic
1832 1.1 skrll && h->root.type != bfd_link_hash_undefweak
1833 1.1 skrll && h->root.type != bfd_link_hash_undefined)
1834 1.1 skrll {
1835 1.1 skrll /* This case can occur if we saw a PLT reloc in an input
1836 1.1 skrll file, but the symbol was never referred to by a dynamic
1837 1.1 skrll object. In such a case, we don't actually need to build
1838 1.1 skrll a procedure linkage table, and we can just do a PCREL
1839 1.1 skrll reloc instead. */
1840 1.1 skrll h->plt.offset = (bfd_vma) -1;
1841 1.1 skrll h->needs_plt = 0;
1842 1.1 skrll }
1843 1.1 skrll
1844 1.1 skrll return TRUE;
1845 1.1 skrll }
1846 1.1 skrll else
1847 1.1 skrll h->plt.offset = (bfd_vma) -1;
1848 1.1 skrll
1849 1.1 skrll /* If this is a weak symbol, and there is a real definition, the
1850 1.1 skrll processor independent code will have arranged for us to see the
1851 1.1 skrll real definition first, and we can just use the same value. */
1852 1.1 skrll if (h->u.weakdef != NULL)
1853 1.1 skrll {
1854 1.1 skrll BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1855 1.1 skrll || h->u.weakdef->root.type == bfd_link_hash_defweak);
1856 1.1 skrll h->root.u.def.section = h->u.weakdef->root.u.def.section;
1857 1.1 skrll h->root.u.def.value = h->u.weakdef->root.u.def.value;
1858 1.1 skrll return TRUE;
1859 1.1 skrll }
1860 1.1 skrll
1861 1.1 skrll /* This is a reference to a symbol defined by a dynamic object which
1862 1.1 skrll is not a function. */
1863 1.1.1.4 christos
1864 1.1 skrll /* If we are creating a shared library, we must presume that the
1865 1.1 skrll only references to the symbol are via the global offset table.
1866 1.1 skrll For such cases we need not do anything here; the relocations will
1867 1.1 skrll be handled correctly by relocate_section. */
1868 1.1 skrll if (bfd_link_pic (info))
1869 1.1 skrll return TRUE;
1870 1.1 skrll
1871 1.1 skrll /* If there are no references to this symbol that do not use the
1872 1.1 skrll GOT, we don't need to generate a copy reloc. */
1873 1.1 skrll if (!h->non_got_ref)
1874 1.1 skrll return TRUE;
1875 1.1 skrll
1876 1.1 skrll /* If -z nocopyreloc was given, we won't generate them either. */
1877 1.1 skrll if (info->nocopyreloc)
1878 1.1 skrll {
1879 1.1 skrll h->non_got_ref = 0;
1880 1.1 skrll return TRUE;
1881 1.1 skrll }
1882 1.1 skrll
1883 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
1884 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
1885 1.1 skrll {
1886 1.1 skrll s = p->sec->output_section;
1887 1.1 skrll if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1888 1.1 skrll break;
1889 1.1 skrll }
1890 1.1 skrll
1891 1.1 skrll /* If we didn't find any dynamic relocs in sections which needs the
1892 1.1 skrll copy reloc, then we'll be keeping the dynamic relocs and avoiding
1893 1.1 skrll the copy reloc. */
1894 1.1 skrll if (p == NULL)
1895 1.1 skrll {
1896 1.1 skrll h->non_got_ref = 0;
1897 1.1 skrll return TRUE;
1898 1.1 skrll }
1899 1.1 skrll
1900 1.1 skrll /* We must allocate the symbol in our .dynbss section, which will
1901 1.1 skrll become part of the .bss section of the executable. There will be
1902 1.1 skrll an entry for this symbol in the .dynsym section. The dynamic
1903 1.1 skrll object will contain position independent code, so all references
1904 1.1 skrll from the dynamic object to this symbol will go through the global
1905 1.1 skrll offset table. The dynamic linker will use the .dynsym entry to
1906 1.1.1.2 christos determine the address it must put in the global offset table, so
1907 1.1.1.2 christos both the dynamic object and the regular object will refer to the
1908 1.1.1.2 christos same memory location for the variable. */
1909 1.1 skrll
1910 1.1 skrll htab = m32r_elf_hash_table (info);
1911 1.1 skrll if (htab == NULL)
1912 1.1 skrll return FALSE;
1913 1.1 skrll
1914 1.1 skrll s = htab->sdynbss;
1915 1.1 skrll BFD_ASSERT (s != NULL);
1916 1.1.1.3 christos
1917 1.1 skrll /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1918 1.1 skrll to copy the initial value out of the dynamic object and into the
1919 1.1 skrll runtime process image. We need to remember the offset into the
1920 1.1 skrll .rela.bss section we are going to use. */
1921 1.1 skrll if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1922 1.1 skrll {
1923 1.1 skrll asection *srel;
1924 1.1 skrll
1925 1.1 skrll srel = htab->srelbss;
1926 1.1.1.4 christos BFD_ASSERT (srel != NULL);
1927 1.1 skrll srel->size += sizeof (Elf32_External_Rela);
1928 1.1 skrll h->needs_copy = 1;
1929 1.1 skrll }
1930 1.1 skrll
1931 1.1 skrll return _bfd_elf_adjust_dynamic_copy (info, h, s);
1932 1.1 skrll }
1933 1.1 skrll
1934 1.1 skrll /* Allocate space in .plt, .got and associated reloc sections for
1935 1.1 skrll dynamic relocs. */
1936 1.1 skrll
1937 1.1 skrll static bfd_boolean
1938 1.1 skrll allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1939 1.1 skrll {
1940 1.1 skrll struct bfd_link_info *info;
1941 1.1 skrll struct elf_m32r_link_hash_table *htab;
1942 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1943 1.1 skrll struct elf_m32r_dyn_relocs *p;
1944 1.1 skrll
1945 1.1.1.2 christos if (h->root.type == bfd_link_hash_indirect)
1946 1.1.1.2 christos return TRUE;
1947 1.1 skrll
1948 1.1 skrll info = (struct bfd_link_info *) inf;
1949 1.1 skrll htab = m32r_elf_hash_table (info);
1950 1.1 skrll if (htab == NULL)
1951 1.1 skrll return FALSE;
1952 1.1 skrll
1953 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
1954 1.1 skrll
1955 1.1 skrll if (htab->root.dynamic_sections_created
1956 1.1 skrll && h->plt.refcount > 0)
1957 1.1 skrll {
1958 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
1959 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
1960 1.1 skrll if (h->dynindx == -1
1961 1.1 skrll && !h->forced_local)
1962 1.1.1.4 christos {
1963 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
1964 1.1 skrll return FALSE;
1965 1.1 skrll }
1966 1.1 skrll
1967 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1968 1.1 skrll {
1969 1.1 skrll asection *s = htab->splt;
1970 1.1 skrll
1971 1.1 skrll /* If this is the first .plt entry, make room for the special
1972 1.1 skrll first entry. */
1973 1.1 skrll if (s->size == 0)
1974 1.1 skrll s->size += PLT_ENTRY_SIZE;
1975 1.1 skrll
1976 1.1 skrll h->plt.offset = s->size;
1977 1.1 skrll
1978 1.1.1.4 christos /* If this symbol is not defined in a regular file, and we are
1979 1.1 skrll not generating a shared library, then set the symbol to this
1980 1.1 skrll location in the .plt. This is required to make function
1981 1.1 skrll pointers compare as equal between the normal executable and
1982 1.1 skrll the shared library. */
1983 1.1 skrll if (! bfd_link_pic (info)
1984 1.1 skrll && !h->def_regular)
1985 1.1 skrll {
1986 1.1 skrll h->root.u.def.section = s;
1987 1.1 skrll h->root.u.def.value = h->plt.offset;
1988 1.1 skrll }
1989 1.1 skrll
1990 1.1 skrll /* Make room for this entry. */
1991 1.1 skrll s->size += PLT_ENTRY_SIZE;
1992 1.1 skrll
1993 1.1 skrll /* We also need to make an entry in the .got.plt section, which
1994 1.1 skrll will be placed in the .got section by the linker script. */
1995 1.1 skrll htab->sgotplt->size += 4;
1996 1.1 skrll
1997 1.1 skrll /* We also need to make an entry in the .rel.plt section. */
1998 1.1 skrll htab->srelplt->size += sizeof (Elf32_External_Rela);
1999 1.1 skrll }
2000 1.1 skrll else
2001 1.1 skrll {
2002 1.1 skrll h->plt.offset = (bfd_vma) -1;
2003 1.1 skrll h->needs_plt = 0;
2004 1.1 skrll }
2005 1.1 skrll }
2006 1.1 skrll else
2007 1.1 skrll {
2008 1.1 skrll h->plt.offset = (bfd_vma) -1;
2009 1.1 skrll h->needs_plt = 0;
2010 1.1 skrll }
2011 1.1 skrll
2012 1.1 skrll if (h->got.refcount > 0)
2013 1.1 skrll {
2014 1.1 skrll asection *s;
2015 1.1 skrll bfd_boolean dyn;
2016 1.1 skrll
2017 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
2018 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
2019 1.1 skrll if (h->dynindx == -1
2020 1.1 skrll && !h->forced_local)
2021 1.1 skrll {
2022 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2023 1.1 skrll return FALSE;
2024 1.1 skrll }
2025 1.1 skrll
2026 1.1.1.4 christos s = htab->sgot;
2027 1.1 skrll
2028 1.1 skrll h->got.offset = s->size;
2029 1.1 skrll s->size += 4;
2030 1.1 skrll dyn = htab->root.dynamic_sections_created;
2031 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2032 1.1 skrll htab->srelgot->size += sizeof (Elf32_External_Rela);
2033 1.1 skrll }
2034 1.1 skrll else
2035 1.1 skrll h->got.offset = (bfd_vma) -1;
2036 1.1 skrll
2037 1.1 skrll if (eh->dyn_relocs == NULL)
2038 1.1 skrll return TRUE;
2039 1.1 skrll
2040 1.1 skrll /* In the shared -Bsymbolic case, discard space allocated for
2041 1.1.1.4 christos dynamic pc-relative relocs against symbols which turn out to be
2042 1.1 skrll defined in regular objects. For the normal shared case, discard
2043 1.1 skrll space for pc-relative relocs that have become local due to symbol
2044 1.1 skrll visibility changes. */
2045 1.1 skrll
2046 1.1 skrll if (bfd_link_pic (info))
2047 1.1 skrll {
2048 1.1 skrll if (h->def_regular
2049 1.1 skrll && (h->forced_local
2050 1.1 skrll || info->symbolic))
2051 1.1 skrll {
2052 1.1 skrll struct elf_m32r_dyn_relocs **pp;
2053 1.1 skrll
2054 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2055 1.1 skrll {
2056 1.1 skrll p->count -= p->pc_count;
2057 1.1 skrll p->pc_count = 0;
2058 1.1 skrll if (p->count == 0)
2059 1.1 skrll *pp = p->next;
2060 1.1 skrll else
2061 1.1 skrll pp = &p->next;
2062 1.1 skrll }
2063 1.1 skrll }
2064 1.1 skrll
2065 1.1 skrll /* Also discard relocs on undefined weak syms with non-default
2066 1.1 skrll visibility. */
2067 1.1 skrll if (eh->dyn_relocs != NULL
2068 1.1 skrll && h->root.type == bfd_link_hash_undefweak)
2069 1.1 skrll {
2070 1.1 skrll if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2071 1.1 skrll eh->dyn_relocs = NULL;
2072 1.1 skrll
2073 1.1 skrll /* Make sure undefined weak symbols are output as a dynamic
2074 1.1 skrll symbol in PIEs. */
2075 1.1 skrll else if (h->dynindx == -1
2076 1.1 skrll && !h->forced_local)
2077 1.1 skrll {
2078 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2079 1.1 skrll return FALSE;
2080 1.1 skrll }
2081 1.1 skrll }
2082 1.1 skrll }
2083 1.1 skrll else
2084 1.1 skrll {
2085 1.1 skrll /* For the non-shared case, discard space for relocs against
2086 1.1 skrll symbols which turn out to need copy relocs or are not
2087 1.1 skrll dynamic. */
2088 1.1 skrll
2089 1.1 skrll if (!h->non_got_ref
2090 1.1 skrll && ((h->def_dynamic
2091 1.1 skrll && !h->def_regular)
2092 1.1 skrll || (htab->root.dynamic_sections_created
2093 1.1 skrll && (h->root.type == bfd_link_hash_undefweak
2094 1.1 skrll || h->root.type == bfd_link_hash_undefined))))
2095 1.1 skrll {
2096 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
2097 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
2098 1.1 skrll if (h->dynindx == -1
2099 1.1 skrll && !h->forced_local)
2100 1.1 skrll {
2101 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2102 1.1 skrll return FALSE;
2103 1.1 skrll }
2104 1.1 skrll
2105 1.1 skrll /* If that succeeded, we know we'll be keeping all the
2106 1.1 skrll relocs. */
2107 1.1 skrll if (h->dynindx != -1)
2108 1.1 skrll goto keep;
2109 1.1 skrll }
2110 1.1 skrll
2111 1.1 skrll eh->dyn_relocs = NULL;
2112 1.1 skrll
2113 1.1 skrll keep: ;
2114 1.1 skrll }
2115 1.1 skrll
2116 1.1 skrll /* Finally, allocate space. */
2117 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
2118 1.1 skrll {
2119 1.1 skrll asection *sreloc = elf_section_data (p->sec)->sreloc;
2120 1.1 skrll sreloc->size += p->count * sizeof (Elf32_External_Rela);
2121 1.1 skrll }
2122 1.1 skrll
2123 1.1 skrll return TRUE;
2124 1.1 skrll }
2125 1.1 skrll
2126 1.1 skrll /* Find any dynamic relocs that apply to read-only sections. */
2127 1.1 skrll
2128 1.1 skrll static bfd_boolean
2129 1.1 skrll readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2130 1.1 skrll {
2131 1.1 skrll struct elf_m32r_link_hash_entry *eh;
2132 1.1 skrll struct elf_m32r_dyn_relocs *p;
2133 1.1 skrll
2134 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
2135 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
2136 1.1 skrll {
2137 1.1 skrll asection *s = p->sec->output_section;
2138 1.1 skrll
2139 1.1 skrll if (s != NULL && (s->flags & SEC_READONLY) != 0)
2140 1.1 skrll {
2141 1.1 skrll struct bfd_link_info *info = (struct bfd_link_info *) inf;
2142 1.1 skrll
2143 1.1 skrll info->flags |= DF_TEXTREL;
2144 1.1 skrll
2145 1.1 skrll /* Not an error, just cut short the traversal. */
2146 1.1 skrll return FALSE;
2147 1.1 skrll }
2148 1.1 skrll }
2149 1.1 skrll return TRUE;
2150 1.1 skrll }
2151 1.1 skrll
2152 1.1 skrll /* Set the sizes of the dynamic sections. */
2153 1.1 skrll
2154 1.1 skrll static bfd_boolean
2155 1.1 skrll m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2156 1.1 skrll struct bfd_link_info *info)
2157 1.1 skrll {
2158 1.1 skrll struct elf_m32r_link_hash_table *htab;
2159 1.1 skrll bfd *dynobj;
2160 1.1 skrll asection *s;
2161 1.1 skrll bfd_boolean relocs;
2162 1.1 skrll bfd *ibfd;
2163 1.1 skrll
2164 1.1.1.2 christos #ifdef DEBUG_PIC
2165 1.1.1.2 christos printf ("m32r_elf_size_dynamic_sections()\n");
2166 1.1.1.2 christos #endif
2167 1.1 skrll
2168 1.1 skrll htab = m32r_elf_hash_table (info);
2169 1.1 skrll if (htab == NULL)
2170 1.1 skrll return FALSE;
2171 1.1 skrll
2172 1.1 skrll dynobj = htab->root.dynobj;
2173 1.1.1.4 christos BFD_ASSERT (dynobj != NULL);
2174 1.1 skrll
2175 1.1.1.3 christos if (htab->root.dynamic_sections_created)
2176 1.1 skrll {
2177 1.1 skrll /* Set the contents of the .interp section to the interpreter. */
2178 1.1 skrll if (bfd_link_executable (info) && !info->nointerp)
2179 1.1 skrll {
2180 1.1 skrll s = bfd_get_linker_section (dynobj, ".interp");
2181 1.1 skrll BFD_ASSERT (s != NULL);
2182 1.1 skrll s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2183 1.1 skrll s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2184 1.1.1.4 christos }
2185 1.1 skrll }
2186 1.1 skrll
2187 1.1 skrll /* Set up .got offsets for local syms, and space for local dynamic
2188 1.1 skrll relocs. */
2189 1.1 skrll for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2190 1.1 skrll {
2191 1.1 skrll bfd_signed_vma *local_got;
2192 1.1 skrll bfd_signed_vma *end_local_got;
2193 1.1 skrll bfd_size_type locsymcount;
2194 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2195 1.1 skrll asection *srel;
2196 1.1 skrll
2197 1.1 skrll if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2198 1.1 skrll continue;
2199 1.1 skrll
2200 1.1 skrll for (s = ibfd->sections; s != NULL; s = s->next)
2201 1.1 skrll {
2202 1.1 skrll struct elf_m32r_dyn_relocs *p;
2203 1.1 skrll
2204 1.1 skrll for (p = ((struct elf_m32r_dyn_relocs *)
2205 1.1 skrll elf_section_data (s)->local_dynrel);
2206 1.1 skrll p != NULL;
2207 1.1 skrll p = p->next)
2208 1.1 skrll {
2209 1.1 skrll if (! bfd_is_abs_section (p->sec)
2210 1.1 skrll && bfd_is_abs_section (p->sec->output_section))
2211 1.1 skrll {
2212 1.1 skrll /* Input section has been discarded, either because
2213 1.1 skrll it is a copy of a linkonce section or due to
2214 1.1 skrll linker script /DISCARD/, so we'll be discarding
2215 1.1 skrll the relocs too. */
2216 1.1 skrll }
2217 1.1 skrll else if (p->count != 0)
2218 1.1 skrll {
2219 1.1 skrll srel = elf_section_data (p->sec)->sreloc;
2220 1.1 skrll srel->size += p->count * sizeof (Elf32_External_Rela);
2221 1.1 skrll if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2222 1.1 skrll info->flags |= DF_TEXTREL;
2223 1.1 skrll }
2224 1.1 skrll }
2225 1.1 skrll }
2226 1.1 skrll
2227 1.1 skrll local_got = elf_local_got_refcounts (ibfd);
2228 1.1 skrll if (!local_got)
2229 1.1 skrll continue;
2230 1.1 skrll
2231 1.1 skrll symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2232 1.1 skrll locsymcount = symtab_hdr->sh_info;
2233 1.1 skrll end_local_got = local_got + locsymcount;
2234 1.1 skrll s = htab->sgot;
2235 1.1 skrll srel = htab->srelgot;
2236 1.1 skrll for (; local_got < end_local_got; ++local_got)
2237 1.1.1.4 christos {
2238 1.1 skrll if (*local_got > 0)
2239 1.1 skrll {
2240 1.1 skrll *local_got = s->size;
2241 1.1 skrll s->size += 4;
2242 1.1 skrll if (bfd_link_pic (info))
2243 1.1 skrll srel->size += sizeof (Elf32_External_Rela);
2244 1.1 skrll }
2245 1.1 skrll else
2246 1.1 skrll *local_got = (bfd_vma) -1;
2247 1.1 skrll }
2248 1.1 skrll }
2249 1.1 skrll
2250 1.1 skrll /* Allocate global sym .plt and .got entries, and space for global
2251 1.1 skrll sym dynamic relocs. */
2252 1.1 skrll elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2253 1.1 skrll
2254 1.1 skrll /* We now have determined the sizes of the various dynamic sections.
2255 1.1 skrll Allocate memory for them. */
2256 1.1 skrll relocs = FALSE;
2257 1.1 skrll for (s = dynobj->sections; s != NULL; s = s->next)
2258 1.1 skrll {
2259 1.1 skrll if ((s->flags & SEC_LINKER_CREATED) == 0)
2260 1.1 skrll continue;
2261 1.1 skrll
2262 1.1 skrll if (s == htab->splt
2263 1.1 skrll || s == htab->sgot
2264 1.1 skrll || s == htab->sgotplt
2265 1.1 skrll || s == htab->sdynbss)
2266 1.1 skrll {
2267 1.1 skrll /* Strip this section if we don't need it; see the
2268 1.1 skrll comment below. */
2269 1.1 skrll }
2270 1.1 skrll else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2271 1.1 skrll {
2272 1.1 skrll if (s->size != 0 && s != htab->srelplt)
2273 1.1 skrll relocs = TRUE;
2274 1.1 skrll
2275 1.1 skrll /* We use the reloc_count field as a counter if we need
2276 1.1 skrll to copy relocs into the output file. */
2277 1.1 skrll s->reloc_count = 0;
2278 1.1 skrll }
2279 1.1 skrll else
2280 1.1 skrll /* It's not one of our sections, so don't allocate space. */
2281 1.1 skrll continue;
2282 1.1 skrll
2283 1.1 skrll if (s->size == 0)
2284 1.1 skrll {
2285 1.1 skrll /* If we don't need this section, strip it from the
2286 1.1 skrll output file. This is mostly to handle .rela.bss and
2287 1.1 skrll .rela.plt. We must create both sections in
2288 1.1 skrll create_dynamic_sections, because they must be created
2289 1.1 skrll before the linker maps input sections to output
2290 1.1 skrll sections. The linker does that before
2291 1.1 skrll adjust_dynamic_symbol is called, and it is that
2292 1.1 skrll function which decides whether anything needs to go
2293 1.1 skrll into these sections. */
2294 1.1 skrll s->flags |= SEC_EXCLUDE;
2295 1.1 skrll continue;
2296 1.1 skrll }
2297 1.1 skrll
2298 1.1 skrll if ((s->flags & SEC_HAS_CONTENTS) == 0)
2299 1.1 skrll continue;
2300 1.1 skrll
2301 1.1 skrll /* Allocate memory for the section contents. We use bfd_zalloc
2302 1.1 skrll here in case unused entries are not reclaimed before the
2303 1.1 skrll section's contents are written out. This should not happen,
2304 1.1 skrll but this way if it does, we get a R_M32R_NONE reloc instead
2305 1.1 skrll of garbage. */
2306 1.1 skrll s->contents = bfd_zalloc (dynobj, s->size);
2307 1.1 skrll if (s->contents == NULL)
2308 1.1 skrll return FALSE;
2309 1.1 skrll }
2310 1.1 skrll
2311 1.1 skrll if (htab->root.dynamic_sections_created)
2312 1.1 skrll {
2313 1.1 skrll /* Add some entries to the .dynamic section. We fill in the
2314 1.1 skrll values later, in m32r_elf_finish_dynamic_sections, but we
2315 1.1 skrll must add the entries now so that we get the correct size for
2316 1.1.1.4 christos the .dynamic section. The DT_DEBUG entry is filled in by the
2317 1.1 skrll dynamic linker and used by the debugger. */
2318 1.1 skrll #define add_dynamic_entry(TAG, VAL) \
2319 1.1 skrll _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2320 1.1 skrll
2321 1.1 skrll if (bfd_link_executable (info))
2322 1.1 skrll {
2323 1.1 skrll if (! add_dynamic_entry (DT_DEBUG, 0))
2324 1.1 skrll return FALSE;
2325 1.1 skrll }
2326 1.1 skrll
2327 1.1 skrll if (htab->splt->size != 0)
2328 1.1 skrll {
2329 1.1 skrll if (! add_dynamic_entry (DT_PLTGOT, 0)
2330 1.1 skrll || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2331 1.1 skrll || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2332 1.1 skrll || ! add_dynamic_entry (DT_JMPREL, 0))
2333 1.1 skrll return FALSE;
2334 1.1 skrll }
2335 1.1 skrll
2336 1.1 skrll if (relocs)
2337 1.1 skrll {
2338 1.1 skrll if (! add_dynamic_entry (DT_RELA, 0)
2339 1.1 skrll || ! add_dynamic_entry (DT_RELASZ, 0)
2340 1.1 skrll || ! add_dynamic_entry (DT_RELAENT,
2341 1.1 skrll sizeof (Elf32_External_Rela)))
2342 1.1 skrll return FALSE;
2343 1.1 skrll
2344 1.1 skrll /* If any dynamic relocs apply to a read-only section,
2345 1.1 skrll then we need a DT_TEXTREL entry. */
2346 1.1 skrll if ((info->flags & DF_TEXTREL) == 0)
2347 1.1 skrll elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2348 1.1 skrll info);
2349 1.1 skrll
2350 1.1 skrll if ((info->flags & DF_TEXTREL) != 0)
2351 1.1 skrll {
2352 1.1 skrll if (! add_dynamic_entry (DT_TEXTREL, 0))
2353 1.1 skrll return FALSE;
2354 1.1 skrll }
2355 1.1 skrll }
2356 1.1 skrll }
2357 1.1 skrll #undef add_dynamic_entry
2358 1.1 skrll
2359 1.1 skrll return TRUE;
2360 1.1 skrll }
2361 1.1 skrll
2362 1.1 skrll /* Relocate an M32R/D ELF section.
2363 1.1 skrll There is some attempt to make this function usable for many architectures,
2364 1.1 skrll both for RELA and REL type relocs, if only to serve as a learning tool.
2365 1.1 skrll
2366 1.1 skrll The RELOCATE_SECTION function is called by the new ELF backend linker
2367 1.1 skrll to handle the relocations for a section.
2368 1.1 skrll
2369 1.1 skrll The relocs are always passed as Rela structures; if the section
2370 1.1 skrll actually uses Rel structures, the r_addend field will always be
2371 1.1 skrll zero.
2372 1.1 skrll
2373 1.1 skrll This function is responsible for adjust the section contents as
2374 1.1 skrll necessary, and (if using Rela relocs and generating a
2375 1.1 skrll relocatable output file) adjusting the reloc addend as
2376 1.1 skrll necessary.
2377 1.1 skrll
2378 1.1 skrll This function does not have to worry about setting the reloc
2379 1.1 skrll address or the reloc symbol index.
2380 1.1 skrll
2381 1.1 skrll LOCAL_SYMS is a pointer to the swapped in local symbols.
2382 1.1 skrll
2383 1.1 skrll LOCAL_SECTIONS is an array giving the section in the input file
2384 1.1 skrll corresponding to the st_shndx field of each local symbol.
2385 1.1 skrll
2386 1.1 skrll The global hash table entry for the global symbols can be found
2387 1.1 skrll via elf_sym_hashes (input_bfd).
2388 1.1 skrll
2389 1.1 skrll When generating relocatable output, this function must handle
2390 1.1 skrll STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2391 1.1 skrll going to be the section symbol corresponding to the output
2392 1.1 skrll section, which means that the addend must be adjusted
2393 1.1 skrll accordingly. */
2394 1.1 skrll
2395 1.1 skrll static bfd_boolean
2396 1.1 skrll m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2397 1.1 skrll struct bfd_link_info *info,
2398 1.1 skrll bfd *input_bfd,
2399 1.1 skrll asection *input_section,
2400 1.1 skrll bfd_byte *contents,
2401 1.1 skrll Elf_Internal_Rela *relocs,
2402 1.1 skrll Elf_Internal_Sym *local_syms,
2403 1.1 skrll asection **local_sections)
2404 1.1 skrll {
2405 1.1 skrll Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2406 1.1 skrll struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2407 1.1 skrll Elf_Internal_Rela *rel, *relend;
2408 1.1 skrll /* Assume success. */
2409 1.1 skrll bfd_boolean ret = TRUE;
2410 1.1 skrll struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2411 1.1.1.2 christos bfd *dynobj;
2412 1.1.1.2 christos bfd_vma *local_got_offsets;
2413 1.1.1.2 christos asection *sgot, *splt, *sreloc;
2414 1.1 skrll bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2415 1.1 skrll
2416 1.1 skrll if (htab == NULL)
2417 1.1 skrll return FALSE;
2418 1.1 skrll
2419 1.1 skrll dynobj = htab->root.dynobj;
2420 1.1 skrll local_got_offsets = elf_local_got_offsets (input_bfd);
2421 1.1 skrll
2422 1.1 skrll sgot = htab->sgot;
2423 1.1 skrll splt = htab->splt;
2424 1.1 skrll sreloc = NULL;
2425 1.1 skrll
2426 1.1 skrll rel = relocs;
2427 1.1 skrll relend = relocs + input_section->reloc_count;
2428 1.1 skrll for (; rel < relend; rel++)
2429 1.1 skrll {
2430 1.1 skrll int r_type;
2431 1.1 skrll reloc_howto_type *howto;
2432 1.1 skrll unsigned long r_symndx;
2433 1.1 skrll struct elf_link_hash_entry *h;
2434 1.1 skrll /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2435 1.1 skrll ensure it's zero (we use REL relocs, not RELA). Therefore this
2436 1.1 skrll should be assigning zero to `addend', but for clarity we use
2437 1.1 skrll `r_addend'. */
2438 1.1 skrll bfd_vma addend = rel->r_addend;
2439 1.1 skrll bfd_vma offset = rel->r_offset;
2440 1.1 skrll bfd_vma relocation;
2441 1.1 skrll Elf_Internal_Sym *sym;
2442 1.1 skrll asection *sec;
2443 1.1 skrll const char *sym_name;
2444 1.1 skrll bfd_reloc_status_type r;
2445 1.1 skrll const char *errmsg = NULL;
2446 1.1 skrll bfd_boolean use_rel = FALSE;
2447 1.1 skrll
2448 1.1 skrll h = NULL;
2449 1.1 skrll r_type = ELF32_R_TYPE (rel->r_info);
2450 1.1 skrll if (r_type < 0 || r_type >= (int) R_M32R_max)
2451 1.1 skrll {
2452 1.1 skrll (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2453 1.1 skrll input_bfd,
2454 1.1 skrll (int) r_type);
2455 1.1 skrll bfd_set_error (bfd_error_bad_value);
2456 1.1 skrll ret = FALSE;
2457 1.1 skrll continue;
2458 1.1 skrll }
2459 1.1 skrll
2460 1.1 skrll if ( r_type == R_M32R_GNU_VTENTRY
2461 1.1 skrll || r_type == R_M32R_GNU_VTINHERIT
2462 1.1 skrll || r_type == R_M32R_NONE
2463 1.1 skrll || r_type == R_M32R_RELA_GNU_VTENTRY
2464 1.1 skrll || r_type == R_M32R_RELA_GNU_VTINHERIT)
2465 1.1 skrll continue;
2466 1.1 skrll
2467 1.1 skrll if (r_type <= R_M32R_GNU_VTENTRY)
2468 1.1 skrll use_rel = TRUE;
2469 1.1 skrll
2470 1.1 skrll howto = m32r_elf_howto_table + r_type;
2471 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
2472 1.1 skrll
2473 1.1 skrll sym = NULL;
2474 1.1 skrll sec = NULL;
2475 1.1 skrll h = NULL;
2476 1.1 skrll
2477 1.1 skrll if (r_symndx < symtab_hdr->sh_info)
2478 1.1 skrll {
2479 1.1 skrll /* Local symbol. */
2480 1.1 skrll sym = local_syms + r_symndx;
2481 1.1 skrll sec = local_sections[r_symndx];
2482 1.1 skrll sym_name = "<local symbol>";
2483 1.1 skrll
2484 1.1 skrll if (!use_rel)
2485 1.1 skrll {
2486 1.1 skrll relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2487 1.1 skrll addend = rel->r_addend;
2488 1.1 skrll }
2489 1.1 skrll else
2490 1.1 skrll {
2491 1.1 skrll relocation = (sec->output_section->vma
2492 1.1 skrll + sec->output_offset
2493 1.1 skrll + sym->st_value);
2494 1.1 skrll }
2495 1.1 skrll }
2496 1.1 skrll else
2497 1.1.1.4 christos {
2498 1.1.1.4 christos /* External symbol. */
2499 1.1.1.4 christos relocation = 0;
2500 1.1.1.4 christos
2501 1.1.1.4 christos h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2502 1.1.1.4 christos
2503 1.1 skrll if (info->wrap_hash != NULL
2504 1.1 skrll && (input_section->flags & SEC_DEBUGGING) != 0)
2505 1.1 skrll h = ((struct elf_link_hash_entry *)
2506 1.1 skrll unwrap_hash_lookup (info, input_bfd, &h->root));
2507 1.1 skrll
2508 1.1 skrll while (h->root.type == bfd_link_hash_indirect
2509 1.1 skrll || h->root.type == bfd_link_hash_warning)
2510 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
2511 1.1 skrll sym_name = h->root.root.string;
2512 1.1 skrll
2513 1.1 skrll if (h->root.type == bfd_link_hash_defined
2514 1.1 skrll || h->root.type == bfd_link_hash_defweak)
2515 1.1 skrll {
2516 1.1 skrll bfd_boolean dyn;
2517 1.1 skrll sec = h->root.u.def.section;
2518 1.1 skrll
2519 1.1 skrll dyn = htab->root.dynamic_sections_created;
2520 1.1 skrll sec = h->root.u.def.section;
2521 1.1 skrll if (r_type == R_M32R_GOTPC24
2522 1.1 skrll || (r_type == R_M32R_GOTPC_HI_ULO
2523 1.1 skrll || r_type == R_M32R_GOTPC_HI_SLO
2524 1.1 skrll || r_type == R_M32R_GOTPC_LO)
2525 1.1 skrll || (r_type == R_M32R_26_PLTREL
2526 1.1 skrll && h->plt.offset != (bfd_vma) -1)
2527 1.1.1.4 christos || ((r_type == R_M32R_GOT24
2528 1.1.1.4 christos || r_type == R_M32R_GOT16_HI_ULO
2529 1.1.1.4 christos || r_type == R_M32R_GOT16_HI_SLO
2530 1.1 skrll || r_type == R_M32R_GOT16_LO)
2531 1.1 skrll && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2532 1.1.1.4 christos bfd_link_pic (info),
2533 1.1 skrll h)
2534 1.1 skrll && (! bfd_link_pic (info)
2535 1.1 skrll || (! info->symbolic && h->dynindx != -1)
2536 1.1 skrll || !h->def_regular))
2537 1.1 skrll || (bfd_link_pic (info)
2538 1.1 skrll && ((! info->symbolic && h->dynindx != -1)
2539 1.1 skrll || !h->def_regular)
2540 1.1 skrll && (((r_type == R_M32R_16_RELA
2541 1.1 skrll || r_type == R_M32R_32_RELA
2542 1.1 skrll || r_type == R_M32R_24_RELA
2543 1.1 skrll || r_type == R_M32R_HI16_ULO_RELA
2544 1.1 skrll || r_type == R_M32R_HI16_SLO_RELA
2545 1.1 skrll || r_type == R_M32R_LO16_RELA)
2546 1.1 skrll && !h->forced_local)
2547 1.1 skrll || r_type == R_M32R_REL32
2548 1.1 skrll || r_type == R_M32R_10_PCREL_RELA
2549 1.1 skrll || r_type == R_M32R_18_PCREL_RELA
2550 1.1 skrll || r_type == R_M32R_26_PCREL_RELA)
2551 1.1 skrll && ((input_section->flags & SEC_ALLOC) != 0
2552 1.1 skrll /* DWARF will emit R_M32R_16(24,32) relocations
2553 1.1 skrll in its sections against symbols defined
2554 1.1 skrll externally in shared libraries. We can't do
2555 1.1 skrll anything with them here. */
2556 1.1 skrll || ((input_section->flags & SEC_DEBUGGING) != 0
2557 1.1 skrll && h->def_dynamic))))
2558 1.1 skrll {
2559 1.1 skrll /* In these cases, we don't need the relocation
2560 1.1 skrll value. We check specially because in some
2561 1.1 skrll obscure cases sec->output_section will be NULL. */
2562 1.1.1.4 christos }
2563 1.1.1.3 christos else if (sec->output_section != NULL)
2564 1.1.1.3 christos relocation = (h->root.u.def.value
2565 1.1.1.3 christos + sec->output_section->vma
2566 1.1.1.3 christos + sec->output_offset);
2567 1.1 skrll else if (!bfd_link_relocatable (info)
2568 1.1 skrll && (_bfd_elf_section_offset (output_bfd, info,
2569 1.1 skrll input_section,
2570 1.1 skrll rel->r_offset)
2571 1.1 skrll != (bfd_vma) -1))
2572 1.1 skrll {
2573 1.1 skrll (*_bfd_error_handler)
2574 1.1 skrll (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2575 1.1 skrll input_bfd,
2576 1.1 skrll input_section,
2577 1.1 skrll (long) rel->r_offset,
2578 1.1 skrll howto->name,
2579 1.1 skrll h->root.root.string);
2580 1.1 skrll }
2581 1.1 skrll }
2582 1.1.1.4 christos else if (h->root.type == bfd_link_hash_undefweak)
2583 1.1.1.5 christos ;
2584 1.1.1.5 christos else if (info->unresolved_syms_in_objects == RM_IGNORE
2585 1.1.1.5 christos && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2586 1.1.1.5 christos ;
2587 1.1.1.5 christos else if (!bfd_link_relocatable (info))
2588 1.1 skrll (*info->callbacks->undefined_symbol)
2589 1.1 skrll (info, h->root.root.string, input_bfd,
2590 1.1.1.3 christos input_section, offset,
2591 1.1.1.2 christos (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2592 1.1.1.3 christos || ELF_ST_VISIBILITY (h->other)));
2593 1.1 skrll }
2594 1.1.1.4 christos
2595 1.1 skrll if (sec != NULL && discarded_section (sec))
2596 1.1 skrll RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2597 1.1 skrll rel, 1, relend, howto, 0, contents);
2598 1.1 skrll
2599 1.1 skrll if (bfd_link_relocatable (info) && !use_rel)
2600 1.1 skrll {
2601 1.1 skrll /* This is a relocatable link. We don't have to change
2602 1.1 skrll anything, unless the reloc is against a section symbol,
2603 1.1 skrll in which case we have to adjust according to where the
2604 1.1 skrll section symbol winds up in the output section. */
2605 1.1.1.4 christos if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2606 1.1 skrll rel->r_addend += sec->output_offset;
2607 1.1 skrll continue;
2608 1.1 skrll }
2609 1.1 skrll
2610 1.1 skrll if (bfd_link_relocatable (info) && use_rel)
2611 1.1 skrll {
2612 1.1 skrll /* This is a relocatable link. We don't have to change
2613 1.1 skrll anything, unless the reloc is against a section symbol,
2614 1.1 skrll in which case we have to adjust according to where the
2615 1.1 skrll section symbol winds up in the output section. */
2616 1.1 skrll if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2617 1.1 skrll continue;
2618 1.1 skrll
2619 1.1 skrll addend += sec->output_offset;
2620 1.1 skrll
2621 1.1 skrll /* If partial_inplace, we need to store any additional addend
2622 1.1 skrll back in the section. */
2623 1.1 skrll if (! howto->partial_inplace)
2624 1.1 skrll continue;
2625 1.1 skrll /* ??? Here is a nice place to call a special_function
2626 1.1 skrll like handler. */
2627 1.1 skrll if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2628 1.1 skrll r = _bfd_relocate_contents (howto, input_bfd,
2629 1.1 skrll addend, contents + offset);
2630 1.1 skrll else
2631 1.1 skrll {
2632 1.1 skrll Elf_Internal_Rela *lorel;
2633 1.1 skrll
2634 1.1 skrll /* We allow an arbitrary number of HI16 relocs before the
2635 1.1 skrll LO16 reloc. This permits gcc to emit the HI and LO relocs
2636 1.1 skrll itself. */
2637 1.1 skrll for (lorel = rel + 1;
2638 1.1 skrll (lorel < relend
2639 1.1 skrll && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2640 1.1 skrll || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2641 1.1 skrll lorel++)
2642 1.1 skrll continue;
2643 1.1 skrll if (lorel < relend
2644 1.1 skrll && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2645 1.1 skrll {
2646 1.1 skrll m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2647 1.1 skrll contents, addend);
2648 1.1 skrll r = bfd_reloc_ok;
2649 1.1 skrll }
2650 1.1 skrll else
2651 1.1 skrll r = _bfd_relocate_contents (howto, input_bfd,
2652 1.1 skrll addend, contents + offset);
2653 1.1 skrll }
2654 1.1 skrll }
2655 1.1 skrll else
2656 1.1 skrll {
2657 1.1 skrll /* Sanity check the address. */
2658 1.1 skrll if (offset > high_address)
2659 1.1 skrll {
2660 1.1 skrll r = bfd_reloc_outofrange;
2661 1.1 skrll goto check_reloc;
2662 1.1 skrll }
2663 1.1 skrll
2664 1.1 skrll switch ((int) r_type)
2665 1.1 skrll {
2666 1.1 skrll case R_M32R_GOTOFF:
2667 1.1 skrll /* Relocation is relative to the start of the global offset
2668 1.1 skrll table (for ld24 rx, #uimm24). eg access at label+addend
2669 1.1 skrll
2670 1.1 skrll ld24 rx. #label@GOTOFF + addend
2671 1.1 skrll sub rx, r12. */
2672 1.1 skrll
2673 1.1 skrll BFD_ASSERT (sgot != NULL);
2674 1.1 skrll
2675 1.1 skrll relocation = -(relocation - sgot->output_section->vma);
2676 1.1 skrll rel->r_addend = -rel->r_addend;
2677 1.1 skrll break;
2678 1.1 skrll
2679 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
2680 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
2681 1.1 skrll case R_M32R_GOTOFF_LO:
2682 1.1 skrll BFD_ASSERT (sgot != NULL);
2683 1.1 skrll
2684 1.1 skrll relocation -= sgot->output_section->vma;
2685 1.1 skrll
2686 1.1 skrll if ((r_type == R_M32R_GOTOFF_HI_SLO)
2687 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2688 1.1 skrll rel->r_addend += 0x10000;
2689 1.1 skrll break;
2690 1.1 skrll
2691 1.1 skrll case R_M32R_GOTPC24:
2692 1.1 skrll /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2693 1.1 skrll ld24 rx,#_GLOBAL_OFFSET_TABLE_
2694 1.1 skrll */
2695 1.1 skrll relocation = sgot->output_section->vma;
2696 1.1 skrll break;
2697 1.1 skrll
2698 1.1 skrll case R_M32R_GOTPC_HI_ULO:
2699 1.1 skrll case R_M32R_GOTPC_HI_SLO:
2700 1.1 skrll case R_M32R_GOTPC_LO:
2701 1.1 skrll {
2702 1.1 skrll /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2703 1.1 skrll bl .+4
2704 1.1 skrll seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2705 1.1 skrll or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2706 1.1 skrll or
2707 1.1 skrll bl .+4
2708 1.1 skrll seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2709 1.1 skrll add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2710 1.1 skrll */
2711 1.1 skrll relocation = sgot->output_section->vma;
2712 1.1 skrll relocation -= (input_section->output_section->vma
2713 1.1 skrll + input_section->output_offset
2714 1.1 skrll + rel->r_offset);
2715 1.1 skrll if ((r_type == R_M32R_GOTPC_HI_SLO)
2716 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2717 1.1 skrll rel->r_addend += 0x10000;
2718 1.1 skrll
2719 1.1 skrll break;
2720 1.1 skrll }
2721 1.1 skrll case R_M32R_GOT16_HI_ULO:
2722 1.1 skrll case R_M32R_GOT16_HI_SLO:
2723 1.1 skrll case R_M32R_GOT16_LO:
2724 1.1 skrll /* Fall through. */
2725 1.1 skrll case R_M32R_GOT24:
2726 1.1 skrll /* Relocation is to the entry for this symbol in the global
2727 1.1 skrll offset table. */
2728 1.1 skrll BFD_ASSERT (sgot != NULL);
2729 1.1 skrll
2730 1.1 skrll if (h != NULL)
2731 1.1 skrll {
2732 1.1 skrll bfd_boolean dyn;
2733 1.1 skrll bfd_vma off;
2734 1.1.1.4 christos
2735 1.1.1.4 christos off = h->got.offset;
2736 1.1.1.4 christos BFD_ASSERT (off != (bfd_vma) -1);
2737 1.1.1.4 christos
2738 1.1 skrll dyn = htab->root.dynamic_sections_created;
2739 1.1 skrll if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2740 1.1 skrll bfd_link_pic (info),
2741 1.1 skrll h)
2742 1.1 skrll || (bfd_link_pic (info)
2743 1.1 skrll && (info->symbolic
2744 1.1 skrll || h->dynindx == -1
2745 1.1 skrll || h->forced_local)
2746 1.1 skrll && h->def_regular))
2747 1.1 skrll {
2748 1.1 skrll /* This is actually a static link, or it is a
2749 1.1 skrll -Bsymbolic link and the symbol is defined
2750 1.1 skrll locally, or the symbol was forced to be local
2751 1.1 skrll because of a version file. We must initialize
2752 1.1 skrll this entry in the global offset table. Since the
2753 1.1 skrll offset must always be a multiple of 4, we use the
2754 1.1 skrll least significant bit to record whether we have
2755 1.1 skrll initialized it already.
2756 1.1 skrll
2757 1.1 skrll When doing a dynamic link, we create a .rela.got
2758 1.1 skrll relocation entry to initialize the value. This
2759 1.1 skrll is done in the finish_dynamic_symbol routine. */
2760 1.1 skrll if ((off & 1) != 0)
2761 1.1 skrll off &= ~1;
2762 1.1 skrll else
2763 1.1 skrll {
2764 1.1 skrll bfd_put_32 (output_bfd, relocation,
2765 1.1 skrll sgot->contents + off);
2766 1.1 skrll h->got.offset |= 1;
2767 1.1 skrll }
2768 1.1 skrll }
2769 1.1 skrll
2770 1.1 skrll relocation = sgot->output_offset + off;
2771 1.1 skrll }
2772 1.1 skrll else
2773 1.1 skrll {
2774 1.1 skrll bfd_vma off;
2775 1.1 skrll bfd_byte *loc;
2776 1.1 skrll
2777 1.1 skrll BFD_ASSERT (local_got_offsets != NULL
2778 1.1 skrll && local_got_offsets[r_symndx] != (bfd_vma) -1);
2779 1.1 skrll
2780 1.1 skrll off = local_got_offsets[r_symndx];
2781 1.1 skrll
2782 1.1 skrll /* The offset must always be a multiple of 4. We use
2783 1.1 skrll the least significant bit to record whether we have
2784 1.1 skrll already processed this entry. */
2785 1.1 skrll if ((off & 1) != 0)
2786 1.1.1.4 christos off &= ~1;
2787 1.1 skrll else
2788 1.1 skrll {
2789 1.1 skrll bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2790 1.1 skrll
2791 1.1 skrll if (bfd_link_pic (info))
2792 1.1 skrll {
2793 1.1.1.3 christos asection *srelgot;
2794 1.1.1.3 christos Elf_Internal_Rela outrel;
2795 1.1 skrll
2796 1.1 skrll /* We need to generate a R_M32R_RELATIVE reloc
2797 1.1 skrll for the dynamic linker. */
2798 1.1 skrll srelgot = bfd_get_linker_section (dynobj,
2799 1.1 skrll ".rela.got");
2800 1.1 skrll BFD_ASSERT (srelgot != NULL);
2801 1.1 skrll
2802 1.1 skrll outrel.r_offset = (sgot->output_section->vma
2803 1.1 skrll + sgot->output_offset
2804 1.1 skrll + off);
2805 1.1 skrll outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2806 1.1 skrll outrel.r_addend = relocation;
2807 1.1 skrll loc = srelgot->contents;
2808 1.1 skrll loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2809 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2810 1.1 skrll ++srelgot->reloc_count;
2811 1.1 skrll }
2812 1.1 skrll
2813 1.1 skrll local_got_offsets[r_symndx] |= 1;
2814 1.1 skrll }
2815 1.1 skrll
2816 1.1 skrll relocation = sgot->output_offset + off;
2817 1.1 skrll }
2818 1.1 skrll if ((r_type == R_M32R_GOT16_HI_SLO)
2819 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2820 1.1 skrll rel->r_addend += 0x10000;
2821 1.1 skrll
2822 1.1 skrll break;
2823 1.1 skrll
2824 1.1 skrll case R_M32R_26_PLTREL:
2825 1.1 skrll /* Relocation is to the entry for this symbol in the
2826 1.1 skrll procedure linkage table. */
2827 1.1 skrll
2828 1.1 skrll /* The native assembler will generate a 26_PLTREL reloc
2829 1.1 skrll for a local symbol if you assemble a call from one
2830 1.1 skrll section to another when using -K pic. */
2831 1.1 skrll if (h == NULL)
2832 1.1 skrll break;
2833 1.1 skrll
2834 1.1 skrll if (h->forced_local)
2835 1.1 skrll break;
2836 1.1 skrll
2837 1.1 skrll if (h->plt.offset == (bfd_vma) -1)
2838 1.1 skrll /* We didn't make a PLT entry for this symbol. This
2839 1.1 skrll happens when statically linking PIC code, or when
2840 1.1 skrll using -Bsymbolic. */
2841 1.1 skrll break;
2842 1.1 skrll
2843 1.1 skrll relocation = (splt->output_section->vma
2844 1.1 skrll + splt->output_offset
2845 1.1 skrll + h->plt.offset);
2846 1.1 skrll break;
2847 1.1 skrll
2848 1.1 skrll case R_M32R_HI16_SLO_RELA:
2849 1.1 skrll if ((relocation + rel->r_addend) & 0x8000)
2850 1.1 skrll rel->r_addend += 0x10000;
2851 1.1 skrll /* Fall through. */
2852 1.1 skrll
2853 1.1 skrll case R_M32R_16_RELA:
2854 1.1 skrll case R_M32R_24_RELA:
2855 1.1 skrll case R_M32R_32_RELA:
2856 1.1 skrll case R_M32R_REL32:
2857 1.1.1.4 christos case R_M32R_10_PCREL_RELA:
2858 1.1.1.2 christos case R_M32R_18_PCREL_RELA:
2859 1.1 skrll case R_M32R_26_PCREL_RELA:
2860 1.1 skrll case R_M32R_HI16_ULO_RELA:
2861 1.1 skrll case R_M32R_LO16_RELA:
2862 1.1 skrll if (bfd_link_pic (info)
2863 1.1 skrll && r_symndx != STN_UNDEF
2864 1.1 skrll && (input_section->flags & SEC_ALLOC) != 0
2865 1.1 skrll && (( r_type != R_M32R_10_PCREL_RELA
2866 1.1 skrll && r_type != R_M32R_18_PCREL_RELA
2867 1.1 skrll && r_type != R_M32R_26_PCREL_RELA
2868 1.1 skrll && r_type != R_M32R_REL32)
2869 1.1 skrll || (h != NULL
2870 1.1 skrll && h->dynindx != -1
2871 1.1 skrll && (! info->symbolic
2872 1.1 skrll || !h->def_regular))))
2873 1.1 skrll {
2874 1.1 skrll Elf_Internal_Rela outrel;
2875 1.1 skrll bfd_boolean skip, relocate;
2876 1.1 skrll bfd_byte *loc;
2877 1.1 skrll
2878 1.1.1.2 christos /* When generating a shared object, these relocations
2879 1.1.1.2 christos are copied into the output file to be resolved at run
2880 1.1.1.2 christos time. */
2881 1.1.1.2 christos if (sreloc == NULL)
2882 1.1 skrll {
2883 1.1 skrll sreloc = _bfd_elf_get_dynamic_reloc_section
2884 1.1 skrll (input_bfd, input_section, /*rela?*/ TRUE);
2885 1.1 skrll if (sreloc == NULL)
2886 1.1 skrll return FALSE;
2887 1.1 skrll }
2888 1.1 skrll
2889 1.1 skrll skip = FALSE;
2890 1.1 skrll relocate = FALSE;
2891 1.1 skrll
2892 1.1 skrll outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2893 1.1 skrll info,
2894 1.1 skrll input_section,
2895 1.1 skrll rel->r_offset);
2896 1.1 skrll if (outrel.r_offset == (bfd_vma) -1)
2897 1.1 skrll skip = TRUE;
2898 1.1 skrll else if (outrel.r_offset == (bfd_vma) -2)
2899 1.1 skrll skip = relocate = TRUE;
2900 1.1 skrll outrel.r_offset += (input_section->output_section->vma
2901 1.1 skrll + input_section->output_offset);
2902 1.1 skrll
2903 1.1 skrll if (skip)
2904 1.1 skrll memset (&outrel, 0, sizeof outrel);
2905 1.1 skrll else if ( r_type == R_M32R_10_PCREL_RELA
2906 1.1 skrll || r_type == R_M32R_18_PCREL_RELA
2907 1.1 skrll || r_type == R_M32R_26_PCREL_RELA
2908 1.1 skrll || r_type == R_M32R_REL32)
2909 1.1 skrll {
2910 1.1 skrll BFD_ASSERT (h != NULL && h->dynindx != -1);
2911 1.1 skrll outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2912 1.1 skrll outrel.r_addend = rel->r_addend;
2913 1.1 skrll }
2914 1.1 skrll else
2915 1.1 skrll {
2916 1.1 skrll /* h->dynindx may be -1 if this symbol was marked to
2917 1.1 skrll become local. */
2918 1.1 skrll if (h == NULL
2919 1.1 skrll || ((info->symbolic || h->dynindx == -1)
2920 1.1 skrll && h->def_regular))
2921 1.1 skrll {
2922 1.1 skrll relocate = TRUE;
2923 1.1 skrll outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2924 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
2925 1.1 skrll }
2926 1.1 skrll else
2927 1.1 skrll {
2928 1.1 skrll BFD_ASSERT (h->dynindx != -1);
2929 1.1 skrll outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2930 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
2931 1.1 skrll }
2932 1.1 skrll }
2933 1.1 skrll
2934 1.1 skrll loc = sreloc->contents;
2935 1.1 skrll loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2936 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2937 1.1 skrll ++sreloc->reloc_count;
2938 1.1 skrll
2939 1.1 skrll /* If this reloc is against an external symbol, we do
2940 1.1 skrll not want to fiddle with the addend. Otherwise, we
2941 1.1 skrll need to include the symbol value so that it becomes
2942 1.1 skrll an addend for the dynamic reloc. */
2943 1.1 skrll if (! relocate)
2944 1.1 skrll continue;
2945 1.1 skrll break;
2946 1.1 skrll }
2947 1.1 skrll else if (r_type != R_M32R_10_PCREL_RELA)
2948 1.1 skrll break;
2949 1.1 skrll /* Fall through. */
2950 1.1 skrll
2951 1.1 skrll case (int) R_M32R_10_PCREL :
2952 1.1 skrll r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2953 1.1 skrll contents, offset,
2954 1.1 skrll sec, relocation, addend);
2955 1.1 skrll goto check_reloc;
2956 1.1 skrll
2957 1.1 skrll case (int) R_M32R_HI16_SLO :
2958 1.1 skrll case (int) R_M32R_HI16_ULO :
2959 1.1 skrll {
2960 1.1 skrll Elf_Internal_Rela *lorel;
2961 1.1 skrll
2962 1.1 skrll /* We allow an arbitrary number of HI16 relocs before the
2963 1.1 skrll LO16 reloc. This permits gcc to emit the HI and LO relocs
2964 1.1 skrll itself. */
2965 1.1 skrll for (lorel = rel + 1;
2966 1.1 skrll (lorel < relend
2967 1.1 skrll && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2968 1.1 skrll || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2969 1.1 skrll lorel++)
2970 1.1 skrll continue;
2971 1.1 skrll if (lorel < relend
2972 1.1 skrll && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2973 1.1 skrll {
2974 1.1 skrll m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2975 1.1 skrll contents, relocation + addend);
2976 1.1 skrll r = bfd_reloc_ok;
2977 1.1 skrll }
2978 1.1 skrll else
2979 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2980 1.1 skrll contents, offset,
2981 1.1 skrll relocation, addend);
2982 1.1 skrll }
2983 1.1 skrll
2984 1.1 skrll goto check_reloc;
2985 1.1 skrll
2986 1.1 skrll case (int) R_M32R_SDA16_RELA:
2987 1.1.1.3 christos case (int) R_M32R_SDA16 :
2988 1.1 skrll {
2989 1.1 skrll const char *name;
2990 1.1 skrll
2991 1.1 skrll BFD_ASSERT (sec != NULL);
2992 1.1 skrll name = bfd_get_section_name (sec->owner, sec);
2993 1.1 skrll
2994 1.1 skrll if ( strcmp (name, ".sdata") == 0
2995 1.1 skrll || strcmp (name, ".sbss") == 0
2996 1.1 skrll || strcmp (name, ".scommon") == 0)
2997 1.1 skrll {
2998 1.1 skrll bfd_vma sda_base;
2999 1.1 skrll bfd *out_bfd = sec->output_section->owner;
3000 1.1 skrll
3001 1.1 skrll r = m32r_elf_final_sda_base (out_bfd, info,
3002 1.1 skrll &errmsg,
3003 1.1 skrll &sda_base);
3004 1.1 skrll if (r != bfd_reloc_ok)
3005 1.1 skrll {
3006 1.1 skrll ret = FALSE;
3007 1.1 skrll goto check_reloc;
3008 1.1 skrll }
3009 1.1 skrll
3010 1.1 skrll /* At this point `relocation' contains the object's
3011 1.1 skrll address. */
3012 1.1 skrll relocation -= sda_base;
3013 1.1 skrll /* Now it contains the offset from _SDA_BASE_. */
3014 1.1 skrll }
3015 1.1 skrll else
3016 1.1 skrll {
3017 1.1 skrll (*_bfd_error_handler)
3018 1.1 skrll (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3019 1.1 skrll input_bfd,
3020 1.1 skrll sec,
3021 1.1 skrll sym_name,
3022 1.1 skrll m32r_elf_howto_table[(int) r_type].name);
3023 1.1 skrll /*bfd_set_error (bfd_error_bad_value); ??? why? */
3024 1.1 skrll ret = FALSE;
3025 1.1 skrll continue;
3026 1.1 skrll }
3027 1.1 skrll }
3028 1.1 skrll /* Fall through. */
3029 1.1 skrll
3030 1.1 skrll default : /* OLD_M32R_RELOC */
3031 1.1 skrll
3032 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3033 1.1 skrll contents, offset,
3034 1.1 skrll relocation, addend);
3035 1.1 skrll goto check_reloc;
3036 1.1 skrll }
3037 1.1 skrll
3038 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3039 1.1 skrll contents, rel->r_offset,
3040 1.1 skrll relocation, rel->r_addend);
3041 1.1 skrll
3042 1.1 skrll }
3043 1.1 skrll
3044 1.1 skrll check_reloc:
3045 1.1 skrll
3046 1.1 skrll if (r != bfd_reloc_ok)
3047 1.1 skrll {
3048 1.1 skrll /* FIXME: This should be generic enough to go in a utility. */
3049 1.1 skrll const char *name;
3050 1.1 skrll
3051 1.1 skrll if (h != NULL)
3052 1.1 skrll name = h->root.root.string;
3053 1.1 skrll else
3054 1.1 skrll {
3055 1.1 skrll name = (bfd_elf_string_from_elf_section
3056 1.1 skrll (input_bfd, symtab_hdr->sh_link, sym->st_name));
3057 1.1 skrll if (name == NULL || *name == '\0')
3058 1.1 skrll name = bfd_section_name (input_bfd, sec);
3059 1.1 skrll }
3060 1.1 skrll
3061 1.1 skrll if (errmsg != NULL)
3062 1.1.1.5 christos goto common_error;
3063 1.1.1.5 christos
3064 1.1.1.5 christos switch (r)
3065 1.1 skrll {
3066 1.1 skrll case bfd_reloc_overflow:
3067 1.1 skrll (*info->callbacks->reloc_overflow)
3068 1.1.1.5 christos (info, (h ? &h->root : NULL), name, howto->name,
3069 1.1.1.5 christos (bfd_vma) 0, input_bfd, input_section, offset);
3070 1.1 skrll break;
3071 1.1 skrll
3072 1.1 skrll case bfd_reloc_undefined:
3073 1.1 skrll (*info->callbacks->undefined_symbol)
3074 1.1 skrll (info, name, input_bfd, input_section, offset, TRUE);
3075 1.1 skrll break;
3076 1.1 skrll
3077 1.1 skrll case bfd_reloc_outofrange:
3078 1.1 skrll errmsg = _("internal error: out of range error");
3079 1.1 skrll goto common_error;
3080 1.1 skrll
3081 1.1 skrll case bfd_reloc_notsupported:
3082 1.1 skrll errmsg = _("internal error: unsupported relocation error");
3083 1.1 skrll goto common_error;
3084 1.1 skrll
3085 1.1 skrll case bfd_reloc_dangerous:
3086 1.1 skrll errmsg = _("internal error: dangerous error");
3087 1.1 skrll goto common_error;
3088 1.1 skrll
3089 1.1.1.5 christos default:
3090 1.1.1.5 christos errmsg = _("internal error: unknown error");
3091 1.1 skrll /* fall through */
3092 1.1 skrll
3093 1.1 skrll common_error:
3094 1.1 skrll (*info->callbacks->warning) (info, errmsg, name, input_bfd,
3095 1.1 skrll input_section, offset);
3096 1.1 skrll break;
3097 1.1 skrll }
3098 1.1 skrll }
3099 1.1 skrll }
3100 1.1 skrll
3101 1.1 skrll return ret;
3102 1.1 skrll }
3103 1.1 skrll
3104 1.1 skrll /* Finish up dynamic symbol handling. We set the contents of various
3105 1.1 skrll dynamic sections here. */
3106 1.1 skrll
3107 1.1 skrll static bfd_boolean
3108 1.1 skrll m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3109 1.1 skrll struct bfd_link_info *info,
3110 1.1 skrll struct elf_link_hash_entry *h,
3111 1.1 skrll Elf_Internal_Sym *sym)
3112 1.1 skrll {
3113 1.1 skrll struct elf_m32r_link_hash_table *htab;
3114 1.1 skrll bfd_byte *loc;
3115 1.1 skrll
3116 1.1.1.2 christos #ifdef DEBUG_PIC
3117 1.1.1.2 christos printf ("m32r_elf_finish_dynamic_symbol()\n");
3118 1.1 skrll #endif
3119 1.1 skrll
3120 1.1 skrll htab = m32r_elf_hash_table (info);
3121 1.1 skrll if (htab == NULL)
3122 1.1 skrll return FALSE;
3123 1.1 skrll
3124 1.1 skrll if (h->plt.offset != (bfd_vma) -1)
3125 1.1 skrll {
3126 1.1 skrll asection *splt;
3127 1.1 skrll asection *sgot;
3128 1.1 skrll asection *srela;
3129 1.1 skrll
3130 1.1 skrll bfd_vma plt_index;
3131 1.1 skrll bfd_vma got_offset;
3132 1.1 skrll Elf_Internal_Rela rela;
3133 1.1 skrll
3134 1.1 skrll /* This symbol has an entry in the procedure linkage table. Set
3135 1.1 skrll it up. */
3136 1.1 skrll
3137 1.1 skrll BFD_ASSERT (h->dynindx != -1);
3138 1.1 skrll
3139 1.1 skrll splt = htab->splt;
3140 1.1 skrll sgot = htab->sgotplt;
3141 1.1 skrll srela = htab->srelplt;
3142 1.1 skrll BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3143 1.1 skrll
3144 1.1 skrll /* Get the index in the procedure linkage table which
3145 1.1 skrll corresponds to this symbol. This is the index of this symbol
3146 1.1 skrll in all the symbols for which we are making plt entries. The
3147 1.1 skrll first entry in the procedure linkage table is reserved. */
3148 1.1 skrll plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3149 1.1 skrll
3150 1.1 skrll /* Get the offset into the .got table of the entry that
3151 1.1.1.4 christos corresponds to this function. Each .got entry is 4 bytes.
3152 1.1 skrll The first three are reserved. */
3153 1.1 skrll got_offset = (plt_index + 3) * 4;
3154 1.1 skrll
3155 1.1 skrll /* Fill in the entry in the procedure linkage table. */
3156 1.1 skrll if (! bfd_link_pic (info))
3157 1.1 skrll {
3158 1.1 skrll bfd_put_32 (output_bfd,
3159 1.1 skrll (PLT_ENTRY_WORD0b
3160 1.1 skrll + (((sgot->output_section->vma
3161 1.1 skrll + sgot->output_offset
3162 1.1 skrll + got_offset) >> 16) & 0xffff)),
3163 1.1 skrll splt->contents + h->plt.offset);
3164 1.1 skrll bfd_put_32 (output_bfd,
3165 1.1 skrll (PLT_ENTRY_WORD1b
3166 1.1 skrll + ((sgot->output_section->vma
3167 1.1 skrll + sgot->output_offset
3168 1.1 skrll + got_offset) & 0xffff)),
3169 1.1 skrll splt->contents + h->plt.offset + 4);
3170 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3171 1.1 skrll splt->contents + h->plt.offset + 8);
3172 1.1 skrll bfd_put_32 (output_bfd,
3173 1.1 skrll (PLT_ENTRY_WORD3
3174 1.1 skrll + plt_index * sizeof (Elf32_External_Rela)),
3175 1.1 skrll splt->contents + h->plt.offset + 12);
3176 1.1 skrll bfd_put_32 (output_bfd,
3177 1.1 skrll (PLT_ENTRY_WORD4
3178 1.1 skrll + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3179 1.1 skrll splt->contents + h->plt.offset + 16);
3180 1.1 skrll }
3181 1.1 skrll else
3182 1.1 skrll {
3183 1.1 skrll bfd_put_32 (output_bfd,
3184 1.1 skrll PLT_ENTRY_WORD0 + got_offset,
3185 1.1 skrll splt->contents + h->plt.offset);
3186 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3187 1.1 skrll splt->contents + h->plt.offset + 4);
3188 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3189 1.1 skrll splt->contents + h->plt.offset + 8);
3190 1.1 skrll bfd_put_32 (output_bfd,
3191 1.1 skrll (PLT_ENTRY_WORD3
3192 1.1 skrll + plt_index * sizeof (Elf32_External_Rela)),
3193 1.1 skrll splt->contents + h->plt.offset + 12);
3194 1.1 skrll bfd_put_32 (output_bfd,
3195 1.1 skrll (PLT_ENTRY_WORD4
3196 1.1 skrll + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3197 1.1 skrll splt->contents + h->plt.offset + 16);
3198 1.1 skrll }
3199 1.1 skrll
3200 1.1 skrll /* Fill in the entry in the global offset table. */
3201 1.1 skrll bfd_put_32 (output_bfd,
3202 1.1 skrll (splt->output_section->vma
3203 1.1 skrll + splt->output_offset
3204 1.1 skrll + h->plt.offset
3205 1.1 skrll + 12), /* same offset */
3206 1.1 skrll sgot->contents + got_offset);
3207 1.1 skrll
3208 1.1 skrll /* Fill in the entry in the .rela.plt section. */
3209 1.1 skrll rela.r_offset = (sgot->output_section->vma
3210 1.1 skrll + sgot->output_offset
3211 1.1 skrll + got_offset);
3212 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3213 1.1 skrll rela.r_addend = 0;
3214 1.1 skrll loc = srela->contents;
3215 1.1 skrll loc += plt_index * sizeof (Elf32_External_Rela);
3216 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3217 1.1 skrll
3218 1.1 skrll if (!h->def_regular)
3219 1.1 skrll {
3220 1.1 skrll /* Mark the symbol as undefined, rather than as defined in
3221 1.1 skrll the .plt section. Leave the value alone. */
3222 1.1 skrll sym->st_shndx = SHN_UNDEF;
3223 1.1 skrll }
3224 1.1 skrll }
3225 1.1 skrll
3226 1.1 skrll if (h->got.offset != (bfd_vma) -1)
3227 1.1 skrll {
3228 1.1 skrll asection *sgot;
3229 1.1 skrll asection *srela;
3230 1.1 skrll Elf_Internal_Rela rela;
3231 1.1 skrll
3232 1.1 skrll /* This symbol has an entry in the global offset table. Set it
3233 1.1 skrll up. */
3234 1.1 skrll
3235 1.1 skrll sgot = htab->sgot;
3236 1.1 skrll srela = htab->srelgot;
3237 1.1 skrll BFD_ASSERT (sgot != NULL && srela != NULL);
3238 1.1 skrll
3239 1.1 skrll rela.r_offset = (sgot->output_section->vma
3240 1.1 skrll + sgot->output_offset
3241 1.1 skrll + (h->got.offset &~ 1));
3242 1.1 skrll
3243 1.1.1.4 christos /* If this is a -Bsymbolic link, and the symbol is defined
3244 1.1 skrll locally, we just want to emit a RELATIVE reloc. Likewise if
3245 1.1 skrll the symbol was forced to be local because of a version file.
3246 1.1 skrll The entry in the global offset table will already have been
3247 1.1 skrll initialized in the relocate_section function. */
3248 1.1 skrll if (bfd_link_pic (info)
3249 1.1 skrll && (info->symbolic
3250 1.1 skrll || h->dynindx == -1
3251 1.1 skrll || h->forced_local)
3252 1.1 skrll && h->def_regular)
3253 1.1 skrll {
3254 1.1 skrll rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3255 1.1 skrll rela.r_addend = (h->root.u.def.value
3256 1.1 skrll + h->root.u.def.section->output_section->vma
3257 1.1 skrll + h->root.u.def.section->output_offset);
3258 1.1 skrll }
3259 1.1 skrll else
3260 1.1 skrll {
3261 1.1 skrll BFD_ASSERT ((h->got.offset & 1) == 0);
3262 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3263 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3264 1.1 skrll rela.r_addend = 0;
3265 1.1 skrll }
3266 1.1 skrll
3267 1.1 skrll loc = srela->contents;
3268 1.1 skrll loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3269 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3270 1.1 skrll ++srela->reloc_count;
3271 1.1 skrll }
3272 1.1 skrll
3273 1.1 skrll if (h->needs_copy)
3274 1.1 skrll {
3275 1.1 skrll asection *s;
3276 1.1 skrll Elf_Internal_Rela rela;
3277 1.1 skrll
3278 1.1 skrll /* This symbols needs a copy reloc. Set it up. */
3279 1.1.1.3 christos
3280 1.1 skrll BFD_ASSERT (h->dynindx != -1
3281 1.1 skrll && (h->root.type == bfd_link_hash_defined
3282 1.1 skrll || h->root.type == bfd_link_hash_defweak));
3283 1.1 skrll
3284 1.1 skrll s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
3285 1.1 skrll BFD_ASSERT (s != NULL);
3286 1.1 skrll
3287 1.1 skrll rela.r_offset = (h->root.u.def.value
3288 1.1 skrll + h->root.u.def.section->output_section->vma
3289 1.1 skrll + h->root.u.def.section->output_offset);
3290 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3291 1.1 skrll rela.r_addend = 0;
3292 1.1 skrll loc = s->contents;
3293 1.1 skrll loc += s->reloc_count * sizeof (Elf32_External_Rela);
3294 1.1.1.4 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3295 1.1 skrll ++s->reloc_count;
3296 1.1 skrll }
3297 1.1 skrll
3298 1.1 skrll /* Mark some specially defined symbols as absolute. */
3299 1.1 skrll if (h == htab->root.hdynamic || h == htab->root.hgot)
3300 1.1 skrll sym->st_shndx = SHN_ABS;
3301 1.1 skrll
3302 1.1 skrll return TRUE;
3303 1.1 skrll }
3304 1.1 skrll
3305 1.1 skrll
3306 1.1 skrll /* Finish up the dynamic sections. */
3307 1.1 skrll
3308 1.1 skrll static bfd_boolean
3309 1.1 skrll m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3310 1.1 skrll struct bfd_link_info *info)
3311 1.1 skrll {
3312 1.1 skrll struct elf_m32r_link_hash_table *htab;
3313 1.1 skrll bfd *dynobj;
3314 1.1 skrll asection *sdyn;
3315 1.1 skrll asection *sgot;
3316 1.1 skrll
3317 1.1.1.2 christos #ifdef DEBUG_PIC
3318 1.1.1.2 christos printf ("m32r_elf_finish_dynamic_sections()\n");
3319 1.1.1.2 christos #endif
3320 1.1 skrll
3321 1.1 skrll htab = m32r_elf_hash_table (info);
3322 1.1 skrll if (htab == NULL)
3323 1.1.1.3 christos return FALSE;
3324 1.1 skrll
3325 1.1 skrll dynobj = htab->root.dynobj;
3326 1.1 skrll
3327 1.1 skrll sgot = htab->sgotplt;
3328 1.1 skrll sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3329 1.1 skrll
3330 1.1 skrll if (htab->root.dynamic_sections_created)
3331 1.1 skrll {
3332 1.1 skrll asection *splt;
3333 1.1 skrll Elf32_External_Dyn *dyncon, *dynconend;
3334 1.1 skrll
3335 1.1 skrll BFD_ASSERT (sgot != NULL && sdyn != NULL);
3336 1.1 skrll
3337 1.1 skrll dyncon = (Elf32_External_Dyn *) sdyn->contents;
3338 1.1 skrll dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3339 1.1 skrll
3340 1.1 skrll for (; dyncon < dynconend; dyncon++)
3341 1.1 skrll {
3342 1.1 skrll Elf_Internal_Dyn dyn;
3343 1.1 skrll asection *s;
3344 1.1 skrll
3345 1.1 skrll bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3346 1.1 skrll
3347 1.1 skrll switch (dyn.d_tag)
3348 1.1.1.5 christos {
3349 1.1 skrll default:
3350 1.1 skrll break;
3351 1.1.1.5 christos
3352 1.1 skrll case DT_PLTGOT:
3353 1.1.1.5 christos s = htab->sgotplt;
3354 1.1 skrll goto get_vma;
3355 1.1 skrll case DT_JMPREL:
3356 1.1 skrll s = htab->srelplt;
3357 1.1 skrll get_vma:
3358 1.1.1.5 christos dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3359 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3360 1.1 skrll break;
3361 1.1 skrll
3362 1.1 skrll case DT_PLTRELSZ:
3363 1.1 skrll s = htab->srelplt;
3364 1.1 skrll dyn.d_un.d_val = s->size;
3365 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3366 1.1 skrll break;
3367 1.1 skrll
3368 1.1 skrll case DT_RELASZ:
3369 1.1 skrll /* My reading of the SVR4 ABI indicates that the
3370 1.1 skrll procedure linkage table relocs (DT_JMPREL) should be
3371 1.1 skrll included in the overall relocs (DT_RELA). This is
3372 1.1 skrll what Solaris does. However, UnixWare can not handle
3373 1.1 skrll that case. Therefore, we override the DT_RELASZ entry
3374 1.1 skrll here to make it not include the JMPREL relocs. Since
3375 1.1.1.5 christos the linker script arranges for .rela.plt to follow all
3376 1.1 skrll other relocation sections, we don't have to worry
3377 1.1 skrll about changing the DT_RELA entry. */
3378 1.1 skrll if (htab->srelplt != NULL)
3379 1.1 skrll {
3380 1.1 skrll s = htab->srelplt;
3381 1.1 skrll dyn.d_un.d_val -= s->size;
3382 1.1 skrll }
3383 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3384 1.1 skrll break;
3385 1.1 skrll }
3386 1.1 skrll }
3387 1.1.1.4 christos
3388 1.1 skrll /* Fill in the first entry in the procedure linkage table. */
3389 1.1 skrll splt = htab->splt;
3390 1.1 skrll if (splt && splt->size > 0)
3391 1.1 skrll {
3392 1.1 skrll if (bfd_link_pic (info))
3393 1.1 skrll {
3394 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3395 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3396 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3397 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3398 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3399 1.1 skrll }
3400 1.1 skrll else
3401 1.1 skrll {
3402 1.1 skrll unsigned long addr;
3403 1.1 skrll /* addr = .got + 4 */
3404 1.1 skrll addr = sgot->output_section->vma + sgot->output_offset + 4;
3405 1.1 skrll bfd_put_32 (output_bfd,
3406 1.1 skrll PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3407 1.1 skrll splt->contents);
3408 1.1 skrll bfd_put_32 (output_bfd,
3409 1.1 skrll PLT0_ENTRY_WORD1 | (addr & 0xffff),
3410 1.1 skrll splt->contents + 4);
3411 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3412 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3413 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3414 1.1 skrll }
3415 1.1 skrll
3416 1.1 skrll elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3417 1.1 skrll PLT_ENTRY_SIZE;
3418 1.1 skrll }
3419 1.1 skrll }
3420 1.1 skrll
3421 1.1 skrll /* Fill in the first three entries in the global offset table. */
3422 1.1 skrll if (sgot && sgot->size > 0)
3423 1.1 skrll {
3424 1.1 skrll if (sdyn == NULL)
3425 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3426 1.1 skrll else
3427 1.1 skrll bfd_put_32 (output_bfd,
3428 1.1 skrll sdyn->output_section->vma + sdyn->output_offset,
3429 1.1 skrll sgot->contents);
3430 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3431 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3432 1.1 skrll
3433 1.1 skrll elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3434 1.1 skrll }
3435 1.1 skrll
3436 1.1 skrll return TRUE;
3437 1.1 skrll }
3438 1.1 skrll
3439 1.1 skrll
3440 1.1 skrll /* Set the right machine number. */
3442 1.1 skrll
3443 1.1 skrll static bfd_boolean
3444 1.1 skrll m32r_elf_object_p (bfd *abfd)
3445 1.1 skrll {
3446 1.1 skrll switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3447 1.1 skrll {
3448 1.1 skrll default:
3449 1.1 skrll case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3450 1.1 skrll case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3451 1.1 skrll case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3452 1.1 skrll }
3453 1.1 skrll return TRUE;
3454 1.1 skrll }
3455 1.1 skrll
3456 1.1 skrll /* Store the machine number in the flags field. */
3457 1.1 skrll
3458 1.1 skrll static void
3459 1.1 skrll m32r_elf_final_write_processing (bfd *abfd,
3460 1.1 skrll bfd_boolean linker ATTRIBUTE_UNUSED)
3461 1.1 skrll {
3462 1.1 skrll unsigned long val;
3463 1.1 skrll
3464 1.1 skrll switch (bfd_get_mach (abfd))
3465 1.1 skrll {
3466 1.1 skrll default:
3467 1.1 skrll case bfd_mach_m32r: val = E_M32R_ARCH; break;
3468 1.1 skrll case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3469 1.1 skrll case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3470 1.1 skrll }
3471 1.1 skrll
3472 1.1 skrll elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3473 1.1 skrll elf_elfheader (abfd)->e_flags |= val;
3474 1.1 skrll }
3475 1.1 skrll
3476 1.1 skrll /* Function to keep M32R specific file flags. */
3477 1.1 skrll
3478 1.1 skrll static bfd_boolean
3479 1.1 skrll m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3480 1.1 skrll {
3481 1.1 skrll BFD_ASSERT (!elf_flags_init (abfd)
3482 1.1 skrll || elf_elfheader (abfd)->e_flags == flags);
3483 1.1 skrll
3484 1.1 skrll elf_elfheader (abfd)->e_flags = flags;
3485 1.1 skrll elf_flags_init (abfd) = TRUE;
3486 1.1 skrll return TRUE;
3487 1.1 skrll }
3488 1.1 skrll
3489 1.1 skrll /* Merge backend specific data from an object file to the output
3490 1.1 skrll object file when linking. */
3491 1.1 skrll
3492 1.1 skrll static bfd_boolean
3493 1.1 skrll m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3494 1.1 skrll {
3495 1.1 skrll flagword out_flags;
3496 1.1 skrll flagword in_flags;
3497 1.1 skrll
3498 1.1 skrll if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3499 1.1 skrll || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3500 1.1 skrll return TRUE;
3501 1.1 skrll
3502 1.1 skrll in_flags = elf_elfheader (ibfd)->e_flags;
3503 1.1 skrll out_flags = elf_elfheader (obfd)->e_flags;
3504 1.1 skrll
3505 1.1 skrll if (! elf_flags_init (obfd))
3506 1.1 skrll {
3507 1.1 skrll /* If the input is the default architecture then do not
3508 1.1 skrll bother setting the flags for the output architecture,
3509 1.1 skrll instead allow future merges to do this. If no future
3510 1.1 skrll merges ever set these flags then they will retain their
3511 1.1 skrll unitialised values, which surprise surprise, correspond
3512 1.1 skrll to the default values. */
3513 1.1 skrll if (bfd_get_arch_info (ibfd)->the_default)
3514 1.1 skrll return TRUE;
3515 1.1 skrll
3516 1.1 skrll elf_flags_init (obfd) = TRUE;
3517 1.1 skrll elf_elfheader (obfd)->e_flags = in_flags;
3518 1.1 skrll
3519 1.1 skrll if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3520 1.1 skrll && bfd_get_arch_info (obfd)->the_default)
3521 1.1 skrll return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3522 1.1 skrll bfd_get_mach (ibfd));
3523 1.1 skrll
3524 1.1 skrll return TRUE;
3525 1.1 skrll }
3526 1.1 skrll
3527 1.1 skrll /* Check flag compatibility. */
3528 1.1 skrll if (in_flags == out_flags)
3529 1.1 skrll return TRUE;
3530 1.1 skrll
3531 1.1 skrll if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3532 1.1 skrll {
3533 1.1 skrll if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3534 1.1 skrll || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3535 1.1 skrll || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3536 1.1 skrll {
3537 1.1 skrll (*_bfd_error_handler)
3538 1.1 skrll (_("%B: Instruction set mismatch with previous modules"), ibfd);
3539 1.1 skrll
3540 1.1 skrll bfd_set_error (bfd_error_bad_value);
3541 1.1 skrll return FALSE;
3542 1.1 skrll }
3543 1.1 skrll }
3544 1.1 skrll
3545 1.1 skrll return TRUE;
3546 1.1 skrll }
3547 1.1 skrll
3548 1.1 skrll /* Display the flags field. */
3549 1.1 skrll
3550 1.1 skrll static bfd_boolean
3551 1.1 skrll m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3552 1.1 skrll {
3553 1.1 skrll FILE * file = (FILE *) ptr;
3554 1.1 skrll
3555 1.1 skrll BFD_ASSERT (abfd != NULL && ptr != NULL);
3556 1.1 skrll
3557 1.1 skrll _bfd_elf_print_private_bfd_data (abfd, ptr);
3558 1.1 skrll
3559 1.1 skrll fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3560 1.1 skrll
3561 1.1 skrll switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3562 1.1 skrll {
3563 1.1 skrll default:
3564 1.1 skrll case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3565 1.1 skrll case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3566 1.1 skrll case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3567 1.1 skrll }
3568 1.1 skrll
3569 1.1 skrll fputc ('\n', file);
3570 1.1 skrll
3571 1.1 skrll return TRUE;
3572 1.1 skrll }
3573 1.1 skrll
3574 1.1 skrll static asection *
3575 1.1 skrll m32r_elf_gc_mark_hook (asection *sec,
3576 1.1 skrll struct bfd_link_info *info,
3577 1.1 skrll Elf_Internal_Rela *rel,
3578 1.1 skrll struct elf_link_hash_entry *h,
3579 1.1 skrll Elf_Internal_Sym *sym)
3580 1.1 skrll {
3581 1.1 skrll if (h != NULL)
3582 1.1 skrll switch (ELF32_R_TYPE (rel->r_info))
3583 1.1 skrll {
3584 1.1 skrll case R_M32R_GNU_VTINHERIT:
3585 1.1 skrll case R_M32R_GNU_VTENTRY:
3586 1.1 skrll case R_M32R_RELA_GNU_VTINHERIT:
3587 1.1 skrll case R_M32R_RELA_GNU_VTENTRY:
3588 1.1 skrll return NULL;
3589 1.1 skrll }
3590 1.1 skrll
3591 1.1 skrll return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3592 1.1 skrll }
3593 1.1 skrll
3594 1.1 skrll static bfd_boolean
3595 1.1 skrll m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3596 1.1 skrll struct bfd_link_info *info ATTRIBUTE_UNUSED,
3597 1.1 skrll asection *sec ATTRIBUTE_UNUSED,
3598 1.1 skrll const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3599 1.1 skrll {
3600 1.1.1.4 christos /* Update the got entry reference counts for the section being removed. */
3601 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
3602 1.1 skrll struct elf_link_hash_entry **sym_hashes;
3603 1.1 skrll bfd_signed_vma *local_got_refcounts;
3604 1.1 skrll const Elf_Internal_Rela *rel, *relend;
3605 1.1 skrll
3606 1.1 skrll if (bfd_link_relocatable (info))
3607 1.1 skrll return TRUE;
3608 1.1 skrll
3609 1.1 skrll elf_section_data (sec)->local_dynrel = NULL;
3610 1.1 skrll
3611 1.1 skrll symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3612 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
3613 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
3614 1.1 skrll
3615 1.1 skrll relend = relocs + sec->reloc_count;
3616 1.1 skrll for (rel = relocs; rel < relend; rel++)
3617 1.1 skrll {
3618 1.1 skrll unsigned long r_symndx;
3619 1.1 skrll struct elf_link_hash_entry *h = NULL;
3620 1.1 skrll
3621 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
3622 1.1 skrll if (r_symndx >= symtab_hdr->sh_info)
3623 1.1 skrll {
3624 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3625 1.1 skrll while (h->root.type == bfd_link_hash_indirect
3626 1.1 skrll || h->root.type == bfd_link_hash_warning)
3627 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
3628 1.1 skrll }
3629 1.1 skrll
3630 1.1 skrll switch (ELF32_R_TYPE (rel->r_info))
3631 1.1 skrll {
3632 1.1 skrll case R_M32R_GOT16_HI_ULO:
3633 1.1 skrll case R_M32R_GOT16_HI_SLO:
3634 1.1 skrll case R_M32R_GOT16_LO:
3635 1.1 skrll case R_M32R_GOTOFF:
3636 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
3637 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
3638 1.1 skrll case R_M32R_GOTOFF_LO:
3639 1.1 skrll case R_M32R_GOT24:
3640 1.1 skrll case R_M32R_GOTPC_HI_ULO:
3641 1.1 skrll case R_M32R_GOTPC_HI_SLO:
3642 1.1 skrll case R_M32R_GOTPC_LO:
3643 1.1 skrll case R_M32R_GOTPC24:
3644 1.1 skrll if (h != NULL)
3645 1.1 skrll {
3646 1.1 skrll if (h->got.refcount > 0)
3647 1.1 skrll h->got.refcount--;
3648 1.1 skrll }
3649 1.1 skrll else
3650 1.1 skrll {
3651 1.1 skrll if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3652 1.1 skrll local_got_refcounts[r_symndx]--;
3653 1.1 skrll }
3654 1.1 skrll break;
3655 1.1 skrll
3656 1.1 skrll case R_M32R_16_RELA:
3657 1.1 skrll case R_M32R_24_RELA:
3658 1.1 skrll case R_M32R_32_RELA:
3659 1.1 skrll case R_M32R_REL32:
3660 1.1 skrll case R_M32R_HI16_ULO_RELA:
3661 1.1 skrll case R_M32R_HI16_SLO_RELA:
3662 1.1 skrll case R_M32R_LO16_RELA:
3663 1.1 skrll case R_M32R_SDA16_RELA:
3664 1.1 skrll case R_M32R_10_PCREL_RELA:
3665 1.1 skrll case R_M32R_18_PCREL_RELA:
3666 1.1 skrll case R_M32R_26_PCREL_RELA:
3667 1.1.1.4 christos if (h != NULL)
3668 1.1 skrll {
3669 1.1 skrll struct elf_m32r_link_hash_entry *eh;
3670 1.1 skrll struct elf_m32r_dyn_relocs **pp;
3671 1.1 skrll struct elf_m32r_dyn_relocs *p;
3672 1.1 skrll
3673 1.1 skrll if (!bfd_link_pic (info) && h->plt.refcount > 0)
3674 1.1 skrll h->plt.refcount -= 1;
3675 1.1 skrll
3676 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
3677 1.1 skrll
3678 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3679 1.1 skrll if (p->sec == sec)
3680 1.1 skrll {
3681 1.1 skrll if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3682 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3683 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3684 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3685 1.1 skrll p->pc_count -= 1;
3686 1.1 skrll p->count -= 1;
3687 1.1 skrll if (p->count == 0)
3688 1.1 skrll *pp = p->next;
3689 1.1 skrll break;
3690 1.1 skrll }
3691 1.1 skrll }
3692 1.1 skrll break;
3693 1.1 skrll
3694 1.1 skrll case R_M32R_26_PLTREL:
3695 1.1 skrll if (h != NULL)
3696 1.1 skrll {
3697 1.1 skrll if (h->plt.refcount > 0)
3698 1.1 skrll h->plt.refcount--;
3699 1.1 skrll }
3700 1.1 skrll break;
3701 1.1 skrll
3702 1.1 skrll default:
3703 1.1 skrll break;
3704 1.1 skrll }
3705 1.1 skrll }
3706 1.1 skrll
3707 1.1 skrll return TRUE;
3708 1.1 skrll }
3709 1.1 skrll
3710 1.1 skrll /* Look through the relocs for a section during the first phase.
3711 1.1 skrll Since we don't do .gots or .plts, we just need to consider the
3712 1.1 skrll virtual table relocs for gc. */
3713 1.1 skrll
3714 1.1 skrll static bfd_boolean
3715 1.1 skrll m32r_elf_check_relocs (bfd *abfd,
3716 1.1 skrll struct bfd_link_info *info,
3717 1.1 skrll asection *sec,
3718 1.1 skrll const Elf_Internal_Rela *relocs)
3719 1.1 skrll {
3720 1.1.1.2 christos Elf_Internal_Shdr *symtab_hdr;
3721 1.1 skrll struct elf_link_hash_entry **sym_hashes;
3722 1.1.1.4 christos const Elf_Internal_Rela *rel;
3723 1.1 skrll const Elf_Internal_Rela *rel_end;
3724 1.1 skrll struct elf_m32r_link_hash_table *htab;
3725 1.1.1.2 christos bfd *dynobj;
3726 1.1 skrll asection *sreloc;
3727 1.1 skrll
3728 1.1 skrll if (bfd_link_relocatable (info))
3729 1.1 skrll return TRUE;
3730 1.1.1.2 christos
3731 1.1.1.2 christos sreloc = NULL;
3732 1.1.1.2 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3733 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
3734 1.1 skrll
3735 1.1 skrll htab = m32r_elf_hash_table (info);
3736 1.1 skrll if (htab == NULL)
3737 1.1 skrll return FALSE;
3738 1.1 skrll
3739 1.1 skrll dynobj = htab->root.dynobj;
3740 1.1 skrll
3741 1.1 skrll rel_end = relocs + sec->reloc_count;
3742 1.1 skrll for (rel = relocs; rel < rel_end; rel++)
3743 1.1 skrll {
3744 1.1 skrll int r_type;
3745 1.1 skrll struct elf_link_hash_entry *h;
3746 1.1 skrll unsigned long r_symndx;
3747 1.1 skrll
3748 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
3749 1.1 skrll r_type = ELF32_R_TYPE (rel->r_info);
3750 1.1 skrll if (r_symndx < symtab_hdr->sh_info)
3751 1.1 skrll h = NULL;
3752 1.1.1.4 christos else
3753 1.1.1.4 christos {
3754 1.1.1.4 christos h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3755 1.1.1.4 christos while (h->root.type == bfd_link_hash_indirect
3756 1.1 skrll || h->root.type == bfd_link_hash_warning)
3757 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
3758 1.1 skrll
3759 1.1 skrll /* PR15323, ref flags aren't set for references in the same
3760 1.1 skrll object. */
3761 1.1 skrll h->root.non_ir_ref = 1;
3762 1.1 skrll }
3763 1.1 skrll
3764 1.1 skrll /* Some relocs require a global offset table. */
3765 1.1 skrll if (htab->sgot == NULL)
3766 1.1 skrll {
3767 1.1 skrll switch (r_type)
3768 1.1 skrll {
3769 1.1 skrll case R_M32R_GOT16_HI_ULO:
3770 1.1 skrll case R_M32R_GOT16_HI_SLO:
3771 1.1 skrll case R_M32R_GOTOFF:
3772 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
3773 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
3774 1.1 skrll case R_M32R_GOTOFF_LO:
3775 1.1 skrll case R_M32R_GOT16_LO:
3776 1.1 skrll case R_M32R_GOTPC24:
3777 1.1 skrll case R_M32R_GOTPC_HI_ULO:
3778 1.1 skrll case R_M32R_GOTPC_HI_SLO:
3779 1.1 skrll case R_M32R_GOTPC_LO:
3780 1.1 skrll case R_M32R_GOT24:
3781 1.1 skrll if (dynobj == NULL)
3782 1.1 skrll htab->root.dynobj = dynobj = abfd;
3783 1.1 skrll if (! create_got_section (dynobj, info))
3784 1.1 skrll return FALSE;
3785 1.1 skrll break;
3786 1.1 skrll
3787 1.1 skrll default:
3788 1.1 skrll break;
3789 1.1 skrll }
3790 1.1 skrll }
3791 1.1 skrll
3792 1.1 skrll switch (r_type)
3793 1.1 skrll {
3794 1.1 skrll case R_M32R_GOT16_HI_ULO:
3795 1.1 skrll case R_M32R_GOT16_HI_SLO:
3796 1.1 skrll case R_M32R_GOT16_LO:
3797 1.1 skrll case R_M32R_GOT24:
3798 1.1 skrll
3799 1.1 skrll if (h != NULL)
3800 1.1 skrll h->got.refcount += 1;
3801 1.1 skrll else
3802 1.1 skrll {
3803 1.1 skrll bfd_signed_vma *local_got_refcounts;
3804 1.1 skrll
3805 1.1 skrll /* This is a global offset table entry for a local
3806 1.1 skrll symbol. */
3807 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
3808 1.1 skrll if (local_got_refcounts == NULL)
3809 1.1 skrll {
3810 1.1 skrll bfd_size_type size;
3811 1.1 skrll
3812 1.1 skrll size = symtab_hdr->sh_info;
3813 1.1 skrll size *= sizeof (bfd_signed_vma);
3814 1.1 skrll local_got_refcounts = bfd_zalloc (abfd, size);
3815 1.1 skrll if (local_got_refcounts == NULL)
3816 1.1 skrll return FALSE;
3817 1.1 skrll elf_local_got_refcounts (abfd) = local_got_refcounts;
3818 1.1 skrll }
3819 1.1 skrll local_got_refcounts[r_symndx] += 1;
3820 1.1 skrll }
3821 1.1 skrll break;
3822 1.1 skrll
3823 1.1 skrll case R_M32R_26_PLTREL:
3824 1.1 skrll /* This symbol requires a procedure linkage table entry. We
3825 1.1 skrll actually build the entry in adjust_dynamic_symbol,
3826 1.1 skrll because this might be a case of linking PIC code without
3827 1.1 skrll linking in any dynamic objects, in which case we don't
3828 1.1 skrll need to generate a procedure linkage table after all. */
3829 1.1 skrll
3830 1.1 skrll /* If this is a local symbol, we resolve it directly without
3831 1.1 skrll creating a procedure linkage table entry. */
3832 1.1 skrll if (h == NULL)
3833 1.1 skrll continue;
3834 1.1 skrll
3835 1.1 skrll if (h->forced_local)
3836 1.1 skrll break;
3837 1.1 skrll
3838 1.1 skrll h->needs_plt = 1;
3839 1.1 skrll h->plt.refcount += 1;
3840 1.1 skrll break;
3841 1.1 skrll
3842 1.1 skrll case R_M32R_16_RELA:
3843 1.1 skrll case R_M32R_24_RELA:
3844 1.1 skrll case R_M32R_32_RELA:
3845 1.1 skrll case R_M32R_REL32:
3846 1.1 skrll case R_M32R_HI16_ULO_RELA:
3847 1.1 skrll case R_M32R_HI16_SLO_RELA:
3848 1.1.1.4 christos case R_M32R_LO16_RELA:
3849 1.1 skrll case R_M32R_SDA16_RELA:
3850 1.1 skrll case R_M32R_10_PCREL_RELA:
3851 1.1 skrll case R_M32R_18_PCREL_RELA:
3852 1.1 skrll case R_M32R_26_PCREL_RELA:
3853 1.1 skrll
3854 1.1 skrll if (h != NULL && !bfd_link_pic (info))
3855 1.1 skrll {
3856 1.1 skrll h->non_got_ref = 1;
3857 1.1 skrll h->plt.refcount += 1;
3858 1.1 skrll }
3859 1.1 skrll
3860 1.1 skrll /* If we are creating a shared library, and this is a reloc
3861 1.1 skrll against a global symbol, or a non PC relative reloc
3862 1.1 skrll against a local symbol, then we need to copy the reloc
3863 1.1 skrll into the shared library. However, if we are linking with
3864 1.1 skrll -Bsymbolic, we do not need to copy a reloc against a
3865 1.1 skrll global symbol which is defined in an object we are
3866 1.1 skrll including in the link (i.e., DEF_REGULAR is set). At
3867 1.1 skrll this point we have not seen all the input files, so it is
3868 1.1 skrll possible that DEF_REGULAR is not set now but will be set
3869 1.1 skrll later (it is never cleared). We account for that
3870 1.1 skrll possibility below by storing information in the
3871 1.1 skrll dyn_relocs field of the hash table entry. A similar
3872 1.1 skrll situation occurs when creating shared libraries and symbol
3873 1.1.1.4 christos visibility changes render the symbol local.
3874 1.1 skrll
3875 1.1 skrll If on the other hand, we are creating an executable, we
3876 1.1 skrll may need to keep relocations for symbols satisfied by a
3877 1.1 skrll dynamic library if we manage to avoid copy relocs for the
3878 1.1 skrll symbol. */
3879 1.1 skrll if ((bfd_link_pic (info)
3880 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
3881 1.1 skrll && (( r_type != R_M32R_26_PCREL_RELA
3882 1.1 skrll && r_type != R_M32R_18_PCREL_RELA
3883 1.1.1.4 christos && r_type != R_M32R_10_PCREL_RELA
3884 1.1 skrll && r_type != R_M32R_REL32)
3885 1.1 skrll || (h != NULL
3886 1.1 skrll && (! info->symbolic
3887 1.1 skrll || h->root.type == bfd_link_hash_defweak
3888 1.1 skrll || !h->def_regular))))
3889 1.1 skrll || (!bfd_link_pic (info)
3890 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
3891 1.1 skrll && h != NULL
3892 1.1 skrll && (h->root.type == bfd_link_hash_defweak
3893 1.1 skrll || !h->def_regular)))
3894 1.1 skrll {
3895 1.1 skrll struct elf_m32r_dyn_relocs *p;
3896 1.1 skrll struct elf_m32r_dyn_relocs **head;
3897 1.1 skrll
3898 1.1 skrll if (dynobj == NULL)
3899 1.1 skrll htab->root.dynobj = dynobj = abfd;
3900 1.1.1.2 christos
3901 1.1.1.2 christos /* When creating a shared object, we must copy these
3902 1.1 skrll relocs into the output file. We create a reloc
3903 1.1.1.2 christos section in dynobj and make room for the reloc. */
3904 1.1.1.2 christos if (sreloc == NULL)
3905 1.1 skrll {
3906 1.1 skrll sreloc = _bfd_elf_make_dynamic_reloc_section
3907 1.1 skrll (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3908 1.1 skrll
3909 1.1 skrll if (sreloc == NULL)
3910 1.1 skrll return FALSE;
3911 1.1 skrll }
3912 1.1 skrll
3913 1.1.1.2 christos /* If this is a global symbol, we count the number of
3914 1.1 skrll relocations we need for this symbol. */
3915 1.1 skrll if (h != NULL)
3916 1.1.1.2 christos head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3917 1.1 skrll else
3918 1.1.1.2 christos {
3919 1.1.1.2 christos /* Track dynamic relocs needed for local syms too. */
3920 1.1.1.2 christos asection *s;
3921 1.1.1.2 christos void *vpp;
3922 1.1.1.2 christos Elf_Internal_Sym *isym;
3923 1.1.1.2 christos
3924 1.1.1.2 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3925 1.1.1.2 christos abfd, r_symndx);
3926 1.1 skrll if (isym == NULL)
3927 1.1 skrll return FALSE;
3928 1.1 skrll
3929 1.1 skrll s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3930 1.1 skrll if (s == NULL)
3931 1.1 skrll s = sec;
3932 1.1 skrll
3933 1.1 skrll vpp = &elf_section_data (s)->local_dynrel;
3934 1.1 skrll head = (struct elf_m32r_dyn_relocs **) vpp;
3935 1.1 skrll }
3936 1.1 skrll
3937 1.1 skrll p = *head;
3938 1.1 skrll if (p == NULL || p->sec != sec)
3939 1.1 skrll {
3940 1.1 skrll bfd_size_type amt = sizeof (*p);
3941 1.1 skrll
3942 1.1 skrll p = bfd_alloc (dynobj, amt);
3943 1.1 skrll if (p == NULL)
3944 1.1 skrll return FALSE;
3945 1.1 skrll p->next = *head;
3946 1.1 skrll *head = p;
3947 1.1 skrll p->sec = sec;
3948 1.1 skrll p->count = 0;
3949 1.1 skrll p->pc_count = 0;
3950 1.1 skrll }
3951 1.1 skrll
3952 1.1 skrll p->count += 1;
3953 1.1 skrll if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3954 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3955 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3956 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3957 1.1 skrll p->pc_count += 1;
3958 1.1 skrll }
3959 1.1 skrll break;
3960 1.1 skrll
3961 1.1 skrll /* This relocation describes the C++ object vtable hierarchy.
3962 1.1 skrll Reconstruct it for later use during GC. */
3963 1.1 skrll case R_M32R_RELA_GNU_VTINHERIT:
3964 1.1 skrll case R_M32R_GNU_VTINHERIT:
3965 1.1 skrll if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3966 1.1 skrll return FALSE;
3967 1.1 skrll break;
3968 1.1 skrll
3969 1.1 skrll /* This relocation describes which C++ vtable entries are actually
3970 1.1 skrll used. Record for later use during GC. */
3971 1.1 skrll case R_M32R_GNU_VTENTRY:
3972 1.1 skrll BFD_ASSERT (h != NULL);
3973 1.1 skrll if (h != NULL
3974 1.1 skrll && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3975 1.1 skrll return FALSE;
3976 1.1 skrll break;
3977 1.1 skrll case R_M32R_RELA_GNU_VTENTRY:
3978 1.1 skrll BFD_ASSERT (h != NULL);
3979 1.1 skrll if (h != NULL
3980 1.1 skrll && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3981 1.1 skrll return FALSE;
3982 1.1 skrll break;
3983 1.1 skrll }
3984 1.1 skrll }
3985 1.1 skrll
3986 1.1 skrll return TRUE;
3987 1.1 skrll }
3988 1.1 skrll
3989 1.1 skrll static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3990 1.1 skrll {
3991 1.1.1.4 christos { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
3992 1.1.1.4 christos { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3993 1.1.1.4 christos { NULL, 0, 0, 0, 0 }
3994 1.1 skrll };
3995 1.1 skrll
3996 1.1 skrll static enum elf_reloc_type_class
3997 1.1 skrll m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3998 1.1 skrll const asection *rel_sec ATTRIBUTE_UNUSED,
3999 1.1 skrll const Elf_Internal_Rela *rela)
4000 1.1 skrll {
4001 1.1 skrll switch ((int) ELF32_R_TYPE (rela->r_info))
4002 1.1 skrll {
4003 1.1 skrll case R_M32R_RELATIVE: return reloc_class_relative;
4004 1.1 skrll case R_M32R_JMP_SLOT: return reloc_class_plt;
4005 1.1.1.2 christos case R_M32R_COPY: return reloc_class_copy;
4006 1.1 skrll default: return reloc_class_normal;
4007 1.1 skrll }
4008 1.1 skrll }
4009 1.1 skrll
4010 1.1.1.4 christos #define ELF_ARCH bfd_arch_m32r
4012 1.1.1.4 christos #define ELF_TARGET_ID M32R_ELF_DATA
4013 1.1 skrll #define ELF_MACHINE_CODE EM_M32R
4014 1.1 skrll #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4015 1.1 skrll #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4016 1.1 skrll
4017 1.1 skrll #define TARGET_BIG_SYM m32r_elf32_vec
4018 1.1 skrll #define TARGET_BIG_NAME "elf32-m32r"
4019 1.1 skrll #define TARGET_LITTLE_SYM m32r_elf32_le_vec
4020 1.1 skrll #define TARGET_LITTLE_NAME "elf32-m32rle"
4021 1.1 skrll
4022 1.1 skrll #define elf_info_to_howto m32r_info_to_howto
4023 1.1 skrll #define elf_info_to_howto_rel m32r_info_to_howto_rel
4024 1.1 skrll #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4025 1.1 skrll #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4026 1.1 skrll #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4027 1.1 skrll #define elf_backend_relocate_section m32r_elf_relocate_section
4028 1.1 skrll #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4029 1.1 skrll #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4030 1.1 skrll #define elf_backend_check_relocs m32r_elf_check_relocs
4031 1.1 skrll
4032 1.1 skrll #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4033 1.1 skrll #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4034 1.1 skrll #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4035 1.1 skrll #define elf_backend_omit_section_dynsym \
4036 1.1 skrll ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4037 1.1 skrll #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4038 1.1 skrll #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4039 1.1 skrll #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4040 1.1 skrll #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4041 1.1 skrll #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4042 1.1 skrll
4043 1.1 skrll #define elf_backend_can_gc_sections 1
4044 1.1 skrll /*#if !USE_REL
4045 1.1 skrll #define elf_backend_rela_normal 1
4046 1.1 skrll #endif*/
4047 1.1 skrll #define elf_backend_can_refcount 1
4048 1.1 skrll #define elf_backend_want_got_plt 1
4049 1.1 skrll #define elf_backend_plt_readonly 1
4050 1.1 skrll #define elf_backend_want_plt_sym 0
4051 1.1 skrll #define elf_backend_got_header_size 12
4052 1.1 skrll
4053 1.1 skrll #define elf_backend_may_use_rel_p 1
4054 1.1 skrll #ifdef USE_M32R_OLD_RELOC
4055 1.1 skrll #define elf_backend_default_use_rela_p 0
4056 1.1 skrll #define elf_backend_may_use_rela_p 0
4057 1.1 skrll #else
4058 1.1 skrll #define elf_backend_default_use_rela_p 1
4059 1.1 skrll #define elf_backend_may_use_rela_p 1
4060 1.1 skrll #endif
4061 1.1 skrll
4062 1.1 skrll #define elf_backend_object_p m32r_elf_object_p
4063 1.1 skrll #define elf_backend_final_write_processing m32r_elf_final_write_processing
4064 1.1 skrll #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4065 1.1 skrll #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4066 1.1 skrll #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4067 1.1 skrll #define elf_backend_special_sections m32r_elf_special_sections
4068 1.1.1.4 christos
4069 1.1 skrll #include "elf32-target.h"
4070 1.1 skrll
4071 1.1 skrll #undef ELF_MAXPAGESIZE
4072 1.1.1.4 christos #define ELF_MAXPAGESIZE 0x1000
4073 1.1 skrll
4074 1.1 skrll #undef TARGET_BIG_SYM
4075 1.1 skrll #define TARGET_BIG_SYM m32r_elf32_linux_vec
4076 1.1 skrll #undef TARGET_BIG_NAME
4077 1.1 skrll #define TARGET_BIG_NAME "elf32-m32r-linux"
4078 1.1 skrll #undef TARGET_LITTLE_SYM
4079 1.1 skrll #define TARGET_LITTLE_SYM m32r_elf32_linux_le_vec
4080 #undef TARGET_LITTLE_NAME
4081 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4082 #undef elf32_bed
4083 #define elf32_bed elf32_m32r_lin_bed
4084
4085 #include "elf32-target.h"
4086
4087