elf32-m32r.c revision 1.1.1.2 1 1.1 skrll /* M32R-specific support for 32-bit ELF.
2 1.1 skrll Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 1.1.1.2 christos 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
4 1.1 skrll
5 1.1 skrll This file is part of BFD, the Binary File Descriptor library.
6 1.1 skrll
7 1.1 skrll This program is free software; you can redistribute it and/or modify
8 1.1 skrll it under the terms of the GNU General Public License as published by
9 1.1 skrll the Free Software Foundation; either version 3 of the License, or
10 1.1 skrll (at your option) any later version.
11 1.1 skrll
12 1.1 skrll This program is distributed in the hope that it will be useful,
13 1.1 skrll but WITHOUT ANY WARRANTY; without even the implied warranty of
14 1.1 skrll MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 1.1 skrll GNU General Public License for more details.
16 1.1 skrll
17 1.1 skrll You should have received a copy of the GNU General Public License
18 1.1 skrll along with this program; if not, write to the Free Software
19 1.1 skrll Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 1.1 skrll MA 02110-1301, USA. */
21 1.1 skrll
22 1.1 skrll #include "sysdep.h"
23 1.1 skrll #include "bfd.h"
24 1.1 skrll #include "libbfd.h"
25 1.1 skrll #include "elf-bfd.h"
26 1.1 skrll #include "elf/m32r.h"
27 1.1 skrll
28 1.1 skrll #define NOP_INSN 0x7000
29 1.1 skrll #define MAKE_PARALLEL(insn) ((insn) | 0x8000)
30 1.1 skrll
31 1.1 skrll /* Use REL instead of RELA to save space.
32 1.1 skrll This only saves space in libraries and object files, but perhaps
33 1.1 skrll relocs will be put in ROM? All in all though, REL relocs are a pain
34 1.1 skrll to work with. */
35 1.1 skrll /* #define USE_REL 1
36 1.1 skrll
37 1.1 skrll #ifndef USE_REL
38 1.1 skrll #define USE_REL 0
39 1.1 skrll #endif */
40 1.1 skrll /* Use RELA. But use REL to link old objects for backwords compatibility. */
41 1.1 skrll
42 1.1 skrll /* Functions for the M32R ELF linker. */
43 1.1 skrll
44 1.1 skrll /* The name of the dynamic interpreter. This is put in the .interp
45 1.1 skrll section. */
46 1.1 skrll
47 1.1 skrll #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
48 1.1 skrll
49 1.1 skrll /* The nop opcode we use. */
50 1.1 skrll
51 1.1 skrll #define M32R_NOP 0x7000f000
52 1.1 skrll
53 1.1 skrll #define PLT_EMPTY 0x10101010 /* RIE -> RIE */
54 1.1 skrll
55 1.1 skrll /* The size in bytes of an entry in the procedure linkage table. */
56 1.1 skrll
57 1.1 skrll #define PLT_ENTRY_SIZE 20
58 1.1 skrll #define PLT_HEADER_SIZE 20
59 1.1 skrll
60 1.1 skrll /* The first one entries in a procedure linkage table are reserved,
61 1.1 skrll and the initial contents are unimportant (we zero them out).
62 1.1 skrll Subsequent entries look like this. */
63 1.1 skrll
64 1.1 skrll #define PLT0_ENTRY_WORD0 0xd6c00000 /* seth r6, #high(.got+4) */
65 1.1 skrll #define PLT0_ENTRY_WORD1 0x86e60000 /* or3 r6, r6, #low(.got)+4) */
66 1.1 skrll #define PLT0_ENTRY_WORD2 0x24e626c6 /* ld r4, @r6+ -> ld r6, @r6 */
67 1.1 skrll #define PLT0_ENTRY_WORD3 0x1fc6f000 /* jmp r6 || pnop */
68 1.1 skrll #define PLT0_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
69 1.1 skrll
70 1.1 skrll #define PLT0_PIC_ENTRY_WORD0 0xa4cc0004 /* ld r4, @(4,r12) */
71 1.1 skrll #define PLT0_PIC_ENTRY_WORD1 0xa6cc0008 /* ld r6, @(8,r12) */
72 1.1 skrll #define PLT0_PIC_ENTRY_WORD2 0x1fc6f000 /* jmp r6 || nop */
73 1.1 skrll #define PLT0_PIC_ENTRY_WORD3 PLT_EMPTY /* RIE -> RIE */
74 1.1 skrll #define PLT0_PIC_ENTRY_WORD4 PLT_EMPTY /* RIE -> RIE */
75 1.1 skrll
76 1.1 skrll #define PLT_ENTRY_WORD0 0xe6000000 /* ld24 r6, .name_in_GOT */
77 1.1 skrll #define PLT_ENTRY_WORD1 0x06acf000 /* add r6, r12 || nop */
78 1.1 skrll #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT) */
79 1.1 skrll #define PLT_ENTRY_WORD1b 0x86e60000 /* or3 r6, r6, #low(.name_in_GOT) */
80 1.1 skrll #define PLT_ENTRY_WORD2 0x26c61fc6 /* ld r6, @r6 -> jmp r6 */
81 1.1 skrll #define PLT_ENTRY_WORD3 0xe5000000 /* ld24 r5, $offset */
82 1.1 skrll #define PLT_ENTRY_WORD4 0xff000000 /* bra .plt0. */
83 1.1 skrll
84 1.1 skrll
85 1.1 skrll /* Utility to actually perform an R_M32R_10_PCREL reloc. */
86 1.1 skrll
87 1.1 skrll static bfd_reloc_status_type
88 1.1 skrll m32r_elf_do_10_pcrel_reloc (bfd *abfd,
89 1.1 skrll reloc_howto_type *howto,
90 1.1 skrll asection *input_section,
91 1.1 skrll bfd_byte *data,
92 1.1 skrll bfd_vma offset,
93 1.1 skrll asection *symbol_section ATTRIBUTE_UNUSED,
94 1.1 skrll bfd_vma symbol_value,
95 1.1 skrll bfd_vma addend)
96 1.1 skrll {
97 1.1 skrll bfd_signed_vma relocation;
98 1.1 skrll unsigned long x;
99 1.1 skrll bfd_reloc_status_type status;
100 1.1 skrll
101 1.1 skrll /* Sanity check the address (offset in section). */
102 1.1 skrll if (offset > bfd_get_section_limit (abfd, input_section))
103 1.1 skrll return bfd_reloc_outofrange;
104 1.1 skrll
105 1.1 skrll relocation = symbol_value + addend;
106 1.1 skrll /* Make it pc relative. */
107 1.1 skrll relocation -= (input_section->output_section->vma
108 1.1 skrll + input_section->output_offset);
109 1.1 skrll /* These jumps mask off the lower two bits of the current address
110 1.1 skrll before doing pcrel calculations. */
111 1.1 skrll relocation -= (offset & -(bfd_vma) 4);
112 1.1 skrll
113 1.1 skrll if (relocation < -0x200 || relocation > 0x1ff)
114 1.1 skrll status = bfd_reloc_overflow;
115 1.1 skrll else
116 1.1 skrll status = bfd_reloc_ok;
117 1.1 skrll
118 1.1 skrll x = bfd_get_16 (abfd, data + offset);
119 1.1 skrll relocation >>= howto->rightshift;
120 1.1 skrll relocation <<= howto->bitpos;
121 1.1 skrll x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
122 1.1 skrll bfd_put_16 (abfd, (bfd_vma) x, data + offset);
123 1.1 skrll
124 1.1 skrll return status;
125 1.1 skrll }
126 1.1 skrll
127 1.1 skrll /* Handle the R_M32R_10_PCREL reloc. */
128 1.1 skrll
129 1.1 skrll static bfd_reloc_status_type
130 1.1 skrll m32r_elf_10_pcrel_reloc (bfd * abfd,
131 1.1 skrll arelent * reloc_entry,
132 1.1 skrll asymbol * symbol,
133 1.1 skrll void * data,
134 1.1 skrll asection * input_section,
135 1.1 skrll bfd * output_bfd,
136 1.1 skrll char ** error_message ATTRIBUTE_UNUSED)
137 1.1 skrll {
138 1.1 skrll /* This part is from bfd_elf_generic_reloc. */
139 1.1 skrll if (output_bfd != NULL
140 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
141 1.1 skrll && (! reloc_entry->howto->partial_inplace
142 1.1 skrll || reloc_entry->addend == 0))
143 1.1 skrll {
144 1.1 skrll reloc_entry->address += input_section->output_offset;
145 1.1 skrll return bfd_reloc_ok;
146 1.1 skrll }
147 1.1 skrll
148 1.1 skrll if (output_bfd != NULL)
149 1.1 skrll /* FIXME: See bfd_perform_relocation. Is this right? */
150 1.1 skrll return bfd_reloc_continue;
151 1.1 skrll
152 1.1 skrll return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
153 1.1 skrll input_section,
154 1.1 skrll data, reloc_entry->address,
155 1.1 skrll symbol->section,
156 1.1 skrll (symbol->value
157 1.1 skrll + symbol->section->output_section->vma
158 1.1 skrll + symbol->section->output_offset),
159 1.1 skrll reloc_entry->addend);
160 1.1 skrll }
161 1.1 skrll
162 1.1 skrll /* Do generic partial_inplace relocation.
163 1.1 skrll This is a local replacement for bfd_elf_generic_reloc. */
164 1.1 skrll
165 1.1 skrll static bfd_reloc_status_type
166 1.1 skrll m32r_elf_generic_reloc (bfd *input_bfd,
167 1.1 skrll arelent *reloc_entry,
168 1.1 skrll asymbol *symbol,
169 1.1 skrll void * data,
170 1.1 skrll asection *input_section,
171 1.1 skrll bfd *output_bfd,
172 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
173 1.1 skrll {
174 1.1 skrll bfd_reloc_status_type ret;
175 1.1 skrll bfd_vma relocation;
176 1.1 skrll bfd_byte *inplace_address;
177 1.1 skrll
178 1.1 skrll /* This part is from bfd_elf_generic_reloc.
179 1.1 skrll If we're relocating, and this an external symbol, we don't want
180 1.1 skrll to change anything. */
181 1.1 skrll if (output_bfd != NULL
182 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
183 1.1 skrll && reloc_entry->addend == 0)
184 1.1 skrll {
185 1.1 skrll reloc_entry->address += input_section->output_offset;
186 1.1 skrll return bfd_reloc_ok;
187 1.1 skrll }
188 1.1 skrll
189 1.1 skrll /* Now do the reloc in the usual way.
190 1.1 skrll ??? It would be nice to call bfd_elf_generic_reloc here,
191 1.1 skrll but we have partial_inplace set. bfd_elf_generic_reloc will
192 1.1 skrll pass the handling back to bfd_install_relocation which will install
193 1.1 skrll a section relative addend which is wrong. */
194 1.1 skrll
195 1.1 skrll /* Sanity check the address (offset in section). */
196 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
197 1.1 skrll return bfd_reloc_outofrange;
198 1.1 skrll
199 1.1 skrll ret = bfd_reloc_ok;
200 1.1 skrll if (bfd_is_und_section (symbol->section)
201 1.1 skrll && output_bfd == NULL)
202 1.1 skrll ret = bfd_reloc_undefined;
203 1.1 skrll
204 1.1 skrll if (bfd_is_com_section (symbol->section)
205 1.1 skrll || output_bfd != NULL)
206 1.1 skrll relocation = 0;
207 1.1 skrll else
208 1.1 skrll relocation = symbol->value;
209 1.1 skrll
210 1.1 skrll /* Only do this for a final link. */
211 1.1 skrll if (output_bfd == NULL)
212 1.1 skrll {
213 1.1 skrll relocation += symbol->section->output_section->vma;
214 1.1 skrll relocation += symbol->section->output_offset;
215 1.1 skrll }
216 1.1 skrll
217 1.1 skrll relocation += reloc_entry->addend;
218 1.1 skrll inplace_address = (bfd_byte *) data + reloc_entry->address;
219 1.1 skrll
220 1.1 skrll #define DOIT(x) \
221 1.1 skrll x = ( (x & ~reloc_entry->howto->dst_mask) | \
222 1.1 skrll (((x & reloc_entry->howto->src_mask) + relocation) & \
223 1.1 skrll reloc_entry->howto->dst_mask))
224 1.1 skrll
225 1.1 skrll switch (reloc_entry->howto->size)
226 1.1 skrll {
227 1.1 skrll case 1:
228 1.1 skrll {
229 1.1 skrll short x = bfd_get_16 (input_bfd, inplace_address);
230 1.1 skrll DOIT (x);
231 1.1 skrll bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
232 1.1 skrll }
233 1.1 skrll break;
234 1.1 skrll case 2:
235 1.1 skrll {
236 1.1 skrll unsigned long x = bfd_get_32 (input_bfd, inplace_address);
237 1.1 skrll DOIT (x);
238 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
239 1.1 skrll }
240 1.1 skrll break;
241 1.1 skrll default:
242 1.1 skrll BFD_ASSERT (0);
243 1.1 skrll }
244 1.1 skrll
245 1.1 skrll if (output_bfd != NULL)
246 1.1 skrll reloc_entry->address += input_section->output_offset;
247 1.1 skrll
248 1.1 skrll return ret;
249 1.1 skrll }
250 1.1 skrll
251 1.1 skrll /* Handle the R_M32R_SDA16 reloc.
252 1.1 skrll This reloc is used to compute the address of objects in the small data area
253 1.1 skrll and to perform loads and stores from that area.
254 1.1 skrll The lower 16 bits are sign extended and added to the register specified
255 1.1 skrll in the instruction, which is assumed to point to _SDA_BASE_. */
256 1.1 skrll
257 1.1 skrll static bfd_reloc_status_type
258 1.1 skrll m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
259 1.1 skrll arelent *reloc_entry,
260 1.1 skrll asymbol *symbol,
261 1.1 skrll void * data ATTRIBUTE_UNUSED,
262 1.1 skrll asection *input_section,
263 1.1 skrll bfd *output_bfd,
264 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
265 1.1 skrll {
266 1.1 skrll /* This part is from bfd_elf_generic_reloc. */
267 1.1 skrll if (output_bfd != NULL
268 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
269 1.1 skrll && (! reloc_entry->howto->partial_inplace
270 1.1 skrll || reloc_entry->addend == 0))
271 1.1 skrll {
272 1.1 skrll reloc_entry->address += input_section->output_offset;
273 1.1 skrll return bfd_reloc_ok;
274 1.1 skrll }
275 1.1 skrll
276 1.1 skrll if (output_bfd != NULL)
277 1.1 skrll /* FIXME: See bfd_perform_relocation. Is this right? */
278 1.1 skrll return bfd_reloc_continue;
279 1.1 skrll
280 1.1 skrll /* FIXME: not sure what to do here yet. But then again, the linker
281 1.1 skrll may never call us. */
282 1.1 skrll abort ();
283 1.1 skrll }
284 1.1 skrll
285 1.1 skrll
286 1.1 skrll /* Handle the R_M32R_HI16_[SU]LO relocs.
288 1.1 skrll HI16_SLO is for the add3 and load/store with displacement instructions.
289 1.1 skrll HI16_ULO is for the or3 instruction.
290 1.1 skrll For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
291 1.1 skrll the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
292 1.1 skrll we must add one to the high 16 bytes (which will get subtracted off when
293 1.1 skrll the low 16 bits are added).
294 1.1 skrll These relocs have to be done in combination with an R_M32R_LO16 reloc
295 1.1 skrll because there is a carry from the LO16 to the HI16. Here we just save
296 1.1 skrll the information we need; we do the actual relocation when we see the LO16.
297 1.1 skrll This code is copied from the elf32-mips.c. We also support an arbitrary
298 1.1 skrll number of HI16 relocs to be associated with a single LO16 reloc. The
299 1.1 skrll assembler sorts the relocs to ensure each HI16 immediately precedes its
300 1.1 skrll LO16. However if there are multiple copies, the assembler may not find
301 1.1 skrll the real LO16 so it picks the first one it finds. */
302 1.1 skrll
303 1.1 skrll struct m32r_hi16
304 1.1 skrll {
305 1.1 skrll struct m32r_hi16 *next;
306 1.1 skrll bfd_byte *addr;
307 1.1 skrll bfd_vma addend;
308 1.1 skrll };
309 1.1 skrll
310 1.1 skrll /* FIXME: This should not be a static variable. */
311 1.1 skrll
312 1.1 skrll static struct m32r_hi16 *m32r_hi16_list;
313 1.1 skrll
314 1.1 skrll static bfd_reloc_status_type
315 1.1 skrll m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
316 1.1 skrll arelent *reloc_entry,
317 1.1 skrll asymbol *symbol,
318 1.1 skrll void * data,
319 1.1 skrll asection *input_section,
320 1.1 skrll bfd *output_bfd,
321 1.1 skrll char **error_message ATTRIBUTE_UNUSED)
322 1.1 skrll {
323 1.1 skrll bfd_reloc_status_type ret;
324 1.1 skrll bfd_vma relocation;
325 1.1 skrll struct m32r_hi16 *n;
326 1.1 skrll
327 1.1 skrll /* This part is from bfd_elf_generic_reloc.
328 1.1 skrll If we're relocating, and this an external symbol, we don't want
329 1.1 skrll to change anything. */
330 1.1 skrll if (output_bfd != NULL
331 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
332 1.1 skrll && reloc_entry->addend == 0)
333 1.1 skrll {
334 1.1 skrll reloc_entry->address += input_section->output_offset;
335 1.1 skrll return bfd_reloc_ok;
336 1.1 skrll }
337 1.1 skrll
338 1.1 skrll /* Sanity check the address (offset in section). */
339 1.1 skrll if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
340 1.1 skrll return bfd_reloc_outofrange;
341 1.1 skrll
342 1.1 skrll ret = bfd_reloc_ok;
343 1.1 skrll if (bfd_is_und_section (symbol->section)
344 1.1 skrll && output_bfd == NULL)
345 1.1 skrll ret = bfd_reloc_undefined;
346 1.1 skrll
347 1.1 skrll if (bfd_is_com_section (symbol->section))
348 1.1 skrll relocation = 0;
349 1.1 skrll else
350 1.1 skrll relocation = symbol->value;
351 1.1 skrll
352 1.1 skrll relocation += symbol->section->output_section->vma;
353 1.1 skrll relocation += symbol->section->output_offset;
354 1.1 skrll relocation += reloc_entry->addend;
355 1.1 skrll
356 1.1 skrll /* Save the information, and let LO16 do the actual relocation. */
357 1.1 skrll n = bfd_malloc ((bfd_size_type) sizeof *n);
358 1.1 skrll if (n == NULL)
359 1.1 skrll return bfd_reloc_outofrange;
360 1.1 skrll n->addr = (bfd_byte *) data + reloc_entry->address;
361 1.1 skrll n->addend = relocation;
362 1.1 skrll n->next = m32r_hi16_list;
363 1.1 skrll m32r_hi16_list = n;
364 1.1 skrll
365 1.1 skrll if (output_bfd != NULL)
366 1.1 skrll reloc_entry->address += input_section->output_offset;
367 1.1 skrll
368 1.1 skrll return ret;
369 1.1 skrll }
370 1.1 skrll
371 1.1 skrll /* Handle an M32R ELF HI16 reloc. */
372 1.1 skrll
373 1.1 skrll static void
374 1.1 skrll m32r_elf_relocate_hi16 (bfd *input_bfd,
375 1.1 skrll int type,
376 1.1 skrll Elf_Internal_Rela *relhi,
377 1.1 skrll Elf_Internal_Rela *rello,
378 1.1 skrll bfd_byte *contents,
379 1.1 skrll bfd_vma addend)
380 1.1 skrll {
381 1.1 skrll unsigned long insn;
382 1.1 skrll bfd_vma addlo;
383 1.1 skrll
384 1.1 skrll insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
385 1.1 skrll
386 1.1 skrll addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
387 1.1 skrll if (type == R_M32R_HI16_SLO)
388 1.1 skrll addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
389 1.1 skrll else
390 1.1 skrll addlo &= 0xffff;
391 1.1 skrll
392 1.1 skrll addend += ((insn & 0xffff) << 16) + addlo;
393 1.1 skrll
394 1.1 skrll /* Reaccount for sign extension of low part. */
395 1.1 skrll if (type == R_M32R_HI16_SLO
396 1.1 skrll && (addend & 0x8000) != 0)
397 1.1 skrll addend += 0x10000;
398 1.1 skrll
399 1.1 skrll bfd_put_32 (input_bfd,
400 1.1 skrll (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
401 1.1 skrll contents + relhi->r_offset);
402 1.1 skrll }
403 1.1 skrll
404 1.1 skrll /* Do an R_M32R_LO16 relocation. This is a straightforward 16 bit
405 1.1 skrll inplace relocation; this function exists in order to do the
406 1.1 skrll R_M32R_HI16_[SU]LO relocation described above. */
407 1.1 skrll
408 1.1 skrll static bfd_reloc_status_type
409 1.1 skrll m32r_elf_lo16_reloc (bfd *input_bfd,
410 1.1 skrll arelent *reloc_entry,
411 1.1 skrll asymbol *symbol,
412 1.1 skrll void * data,
413 1.1 skrll asection *input_section,
414 1.1 skrll bfd *output_bfd,
415 1.1 skrll char **error_message)
416 1.1 skrll {
417 1.1 skrll /* This part is from bfd_elf_generic_reloc.
418 1.1 skrll If we're relocating, and this an external symbol, we don't want
419 1.1 skrll to change anything. */
420 1.1 skrll if (output_bfd != NULL
421 1.1 skrll && (symbol->flags & BSF_SECTION_SYM) == 0
422 1.1 skrll && reloc_entry->addend == 0)
423 1.1 skrll {
424 1.1 skrll reloc_entry->address += input_section->output_offset;
425 1.1 skrll return bfd_reloc_ok;
426 1.1 skrll }
427 1.1 skrll
428 1.1 skrll if (m32r_hi16_list != NULL)
429 1.1 skrll {
430 1.1 skrll struct m32r_hi16 *l;
431 1.1 skrll
432 1.1 skrll l = m32r_hi16_list;
433 1.1 skrll while (l != NULL)
434 1.1 skrll {
435 1.1 skrll unsigned long insn;
436 1.1 skrll unsigned long val;
437 1.1 skrll unsigned long vallo;
438 1.1 skrll struct m32r_hi16 *next;
439 1.1 skrll
440 1.1 skrll /* Do the HI16 relocation. Note that we actually don't need
441 1.1 skrll to know anything about the LO16 itself, except where to
442 1.1 skrll find the low 16 bits of the addend needed by the LO16. */
443 1.1 skrll insn = bfd_get_32 (input_bfd, l->addr);
444 1.1 skrll vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
445 1.1 skrll & 0xffff) ^ 0x8000) - 0x8000;
446 1.1 skrll val = ((insn & 0xffff) << 16) + vallo;
447 1.1 skrll val += l->addend;
448 1.1 skrll
449 1.1 skrll /* Reaccount for sign extension of low part. */
450 1.1 skrll if ((val & 0x8000) != 0)
451 1.1 skrll val += 0x10000;
452 1.1 skrll
453 1.1 skrll insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
454 1.1 skrll bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
455 1.1 skrll
456 1.1 skrll next = l->next;
457 1.1 skrll free (l);
458 1.1 skrll l = next;
459 1.1 skrll }
460 1.1 skrll
461 1.1 skrll m32r_hi16_list = NULL;
462 1.1 skrll }
463 1.1 skrll
464 1.1 skrll /* Now do the LO16 reloc in the usual way.
465 1.1 skrll ??? It would be nice to call bfd_elf_generic_reloc here,
466 1.1 skrll but we have partial_inplace set. bfd_elf_generic_reloc will
467 1.1 skrll pass the handling back to bfd_install_relocation which will install
468 1.1 skrll a section relative addend which is wrong. */
469 1.1 skrll return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
470 1.1 skrll input_section, output_bfd, error_message);
471 1.1 skrll }
472 1.1 skrll
473 1.1 skrll
474 1.1 skrll static reloc_howto_type m32r_elf_howto_table[] =
476 1.1 skrll {
477 1.1 skrll /* This reloc does nothing. */
478 1.1 skrll HOWTO (R_M32R_NONE, /* type */
479 1.1 skrll 0, /* rightshift */
480 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
481 1.1 skrll 32, /* bitsize */
482 1.1 skrll FALSE, /* pc_relative */
483 1.1 skrll 0, /* bitpos */
484 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
485 1.1 skrll bfd_elf_generic_reloc, /* special_function */
486 1.1 skrll "R_M32R_NONE", /* name */
487 1.1 skrll FALSE, /* partial_inplace */
488 1.1 skrll 0, /* src_mask */
489 1.1 skrll 0, /* dst_mask */
490 1.1 skrll FALSE), /* pcrel_offset */
491 1.1 skrll
492 1.1 skrll /* A 16 bit absolute relocation. */
493 1.1 skrll HOWTO (R_M32R_16, /* type */
494 1.1 skrll 0, /* rightshift */
495 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
496 1.1 skrll 16, /* bitsize */
497 1.1 skrll FALSE, /* pc_relative */
498 1.1 skrll 0, /* bitpos */
499 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
500 1.1 skrll m32r_elf_generic_reloc,/* special_function */
501 1.1 skrll "R_M32R_16", /* name */
502 1.1 skrll TRUE, /* partial_inplace */
503 1.1 skrll 0xffff, /* src_mask */
504 1.1 skrll 0xffff, /* dst_mask */
505 1.1 skrll FALSE), /* pcrel_offset */
506 1.1 skrll
507 1.1 skrll /* A 32 bit absolute relocation. */
508 1.1 skrll HOWTO (R_M32R_32, /* type */
509 1.1 skrll 0, /* rightshift */
510 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
511 1.1 skrll 32, /* bitsize */
512 1.1 skrll FALSE, /* pc_relative */
513 1.1 skrll 0, /* bitpos */
514 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
515 1.1 skrll m32r_elf_generic_reloc,/* special_function */
516 1.1 skrll "R_M32R_32", /* name */
517 1.1 skrll TRUE, /* partial_inplace */
518 1.1 skrll 0xffffffff, /* src_mask */
519 1.1 skrll 0xffffffff, /* dst_mask */
520 1.1 skrll FALSE), /* pcrel_offset */
521 1.1 skrll
522 1.1 skrll /* A 24 bit address. */
523 1.1 skrll HOWTO (R_M32R_24, /* type */
524 1.1 skrll 0, /* rightshift */
525 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
526 1.1 skrll 24, /* bitsize */
527 1.1 skrll FALSE, /* pc_relative */
528 1.1 skrll 0, /* bitpos */
529 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
530 1.1 skrll m32r_elf_generic_reloc,/* special_function */
531 1.1 skrll "R_M32R_24", /* name */
532 1.1 skrll TRUE, /* partial_inplace */
533 1.1 skrll 0xffffff, /* src_mask */
534 1.1 skrll 0xffffff, /* dst_mask */
535 1.1 skrll FALSE), /* pcrel_offset */
536 1.1 skrll
537 1.1 skrll /* An PC Relative 10-bit relocation, shifted by 2.
538 1.1 skrll This reloc is complicated because relocations are relative to pc & -4.
539 1.1 skrll i.e. branches in the right insn slot use the address of the left insn
540 1.1 skrll slot for pc. */
541 1.1 skrll /* ??? It's not clear whether this should have partial_inplace set or not.
542 1.1 skrll Branch relaxing in the assembler can store the addend in the insn,
543 1.1 skrll and if bfd_install_relocation gets called the addend may get added
544 1.1 skrll again. */
545 1.1 skrll HOWTO (R_M32R_10_PCREL, /* type */
546 1.1 skrll 2, /* rightshift */
547 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
548 1.1 skrll 10, /* bitsize */
549 1.1 skrll TRUE, /* pc_relative */
550 1.1 skrll 0, /* bitpos */
551 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
552 1.1 skrll m32r_elf_10_pcrel_reloc, /* special_function */
553 1.1 skrll "R_M32R_10_PCREL", /* name */
554 1.1 skrll FALSE, /* partial_inplace */
555 1.1 skrll 0xff, /* src_mask */
556 1.1 skrll 0xff, /* dst_mask */
557 1.1 skrll TRUE), /* pcrel_offset */
558 1.1 skrll
559 1.1 skrll /* A relative 18 bit relocation, right shifted by 2. */
560 1.1 skrll HOWTO (R_M32R_18_PCREL, /* type */
561 1.1 skrll 2, /* rightshift */
562 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
563 1.1 skrll 16, /* bitsize */
564 1.1 skrll TRUE, /* pc_relative */
565 1.1 skrll 0, /* bitpos */
566 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
567 1.1 skrll bfd_elf_generic_reloc, /* special_function */
568 1.1 skrll "R_M32R_18_PCREL", /* name */
569 1.1 skrll FALSE, /* partial_inplace */
570 1.1 skrll 0xffff, /* src_mask */
571 1.1 skrll 0xffff, /* dst_mask */
572 1.1 skrll TRUE), /* pcrel_offset */
573 1.1 skrll
574 1.1 skrll /* A relative 26 bit relocation, right shifted by 2. */
575 1.1 skrll /* ??? It's not clear whether this should have partial_inplace set or not.
576 1.1 skrll Branch relaxing in the assembler can store the addend in the insn,
577 1.1 skrll and if bfd_install_relocation gets called the addend may get added
578 1.1 skrll again. */
579 1.1 skrll HOWTO (R_M32R_26_PCREL, /* type */
580 1.1 skrll 2, /* rightshift */
581 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
582 1.1 skrll 26, /* bitsize */
583 1.1 skrll TRUE, /* pc_relative */
584 1.1 skrll 0, /* bitpos */
585 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
586 1.1 skrll bfd_elf_generic_reloc, /* special_function */
587 1.1 skrll "R_M32R_26_PCREL", /* name */
588 1.1 skrll FALSE, /* partial_inplace */
589 1.1 skrll 0xffffff, /* src_mask */
590 1.1 skrll 0xffffff, /* dst_mask */
591 1.1 skrll TRUE), /* pcrel_offset */
592 1.1 skrll
593 1.1 skrll /* High 16 bits of address when lower 16 is or'd in. */
594 1.1 skrll HOWTO (R_M32R_HI16_ULO, /* type */
595 1.1 skrll 16, /* rightshift */
596 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
597 1.1 skrll 16, /* bitsize */
598 1.1 skrll FALSE, /* pc_relative */
599 1.1 skrll 0, /* bitpos */
600 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
601 1.1 skrll m32r_elf_hi16_reloc, /* special_function */
602 1.1 skrll "R_M32R_HI16_ULO", /* name */
603 1.1 skrll TRUE, /* partial_inplace */
604 1.1 skrll 0x0000ffff, /* src_mask */
605 1.1 skrll 0x0000ffff, /* dst_mask */
606 1.1 skrll FALSE), /* pcrel_offset */
607 1.1 skrll
608 1.1 skrll /* High 16 bits of address when lower 16 is added in. */
609 1.1 skrll HOWTO (R_M32R_HI16_SLO, /* type */
610 1.1 skrll 16, /* rightshift */
611 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
612 1.1 skrll 16, /* bitsize */
613 1.1 skrll FALSE, /* pc_relative */
614 1.1 skrll 0, /* bitpos */
615 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
616 1.1 skrll m32r_elf_hi16_reloc, /* special_function */
617 1.1 skrll "R_M32R_HI16_SLO", /* name */
618 1.1 skrll TRUE, /* partial_inplace */
619 1.1 skrll 0x0000ffff, /* src_mask */
620 1.1 skrll 0x0000ffff, /* dst_mask */
621 1.1 skrll FALSE), /* pcrel_offset */
622 1.1 skrll
623 1.1 skrll /* Lower 16 bits of address. */
624 1.1 skrll HOWTO (R_M32R_LO16, /* type */
625 1.1 skrll 0, /* rightshift */
626 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
627 1.1 skrll 16, /* bitsize */
628 1.1 skrll FALSE, /* pc_relative */
629 1.1 skrll 0, /* bitpos */
630 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
631 1.1 skrll m32r_elf_lo16_reloc, /* special_function */
632 1.1 skrll "R_M32R_LO16", /* name */
633 1.1 skrll TRUE, /* partial_inplace */
634 1.1 skrll 0x0000ffff, /* src_mask */
635 1.1 skrll 0x0000ffff, /* dst_mask */
636 1.1 skrll FALSE), /* pcrel_offset */
637 1.1 skrll
638 1.1 skrll /* Small data area 16 bits offset. */
639 1.1 skrll HOWTO (R_M32R_SDA16, /* type */
640 1.1 skrll 0, /* rightshift */
641 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
642 1.1 skrll 16, /* bitsize */
643 1.1 skrll FALSE, /* pc_relative */
644 1.1 skrll 0, /* bitpos */
645 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
646 1.1 skrll m32r_elf_sda16_reloc, /* special_function */
647 1.1 skrll "R_M32R_SDA16", /* name */
648 1.1 skrll TRUE, /* partial_inplace */ /* FIXME: correct? */
649 1.1 skrll 0x0000ffff, /* src_mask */
650 1.1 skrll 0x0000ffff, /* dst_mask */
651 1.1 skrll FALSE), /* pcrel_offset */
652 1.1 skrll
653 1.1 skrll /* GNU extension to record C++ vtable hierarchy. */
654 1.1 skrll HOWTO (R_M32R_GNU_VTINHERIT, /* type */
655 1.1 skrll 0, /* rightshift */
656 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
657 1.1 skrll 0, /* bitsize */
658 1.1 skrll FALSE, /* pc_relative */
659 1.1 skrll 0, /* bitpos */
660 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
661 1.1 skrll NULL, /* special_function */
662 1.1 skrll "R_M32R_GNU_VTINHERIT", /* name */
663 1.1 skrll FALSE, /* partial_inplace */
664 1.1 skrll 0, /* src_mask */
665 1.1 skrll 0, /* dst_mask */
666 1.1 skrll FALSE), /* pcrel_offset */
667 1.1 skrll
668 1.1 skrll /* GNU extension to record C++ vtable member usage. */
669 1.1 skrll HOWTO (R_M32R_GNU_VTENTRY, /* type */
670 1.1 skrll 0, /* rightshift */
671 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
672 1.1 skrll 0, /* bitsize */
673 1.1 skrll FALSE, /* pc_relative */
674 1.1 skrll 0, /* bitpos */
675 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
676 1.1 skrll _bfd_elf_rel_vtable_reloc_fn, /* special_function */
677 1.1 skrll "R_M32R_GNU_VTENTRY", /* name */
678 1.1 skrll FALSE, /* partial_inplace */
679 1.1 skrll 0, /* src_mask */
680 1.1 skrll 0, /* dst_mask */
681 1.1 skrll FALSE), /* pcrel_offset */
682 1.1 skrll
683 1.1 skrll EMPTY_HOWTO (13),
684 1.1 skrll EMPTY_HOWTO (14),
685 1.1 skrll EMPTY_HOWTO (15),
686 1.1 skrll EMPTY_HOWTO (16),
687 1.1 skrll EMPTY_HOWTO (17),
688 1.1 skrll EMPTY_HOWTO (18),
689 1.1 skrll EMPTY_HOWTO (19),
690 1.1 skrll EMPTY_HOWTO (20),
691 1.1 skrll EMPTY_HOWTO (21),
692 1.1 skrll EMPTY_HOWTO (22),
693 1.1 skrll EMPTY_HOWTO (23),
694 1.1 skrll EMPTY_HOWTO (24),
695 1.1 skrll EMPTY_HOWTO (25),
696 1.1 skrll EMPTY_HOWTO (26),
697 1.1 skrll EMPTY_HOWTO (27),
698 1.1 skrll EMPTY_HOWTO (28),
699 1.1 skrll EMPTY_HOWTO (29),
700 1.1 skrll EMPTY_HOWTO (30),
701 1.1 skrll EMPTY_HOWTO (31),
702 1.1 skrll EMPTY_HOWTO (32),
703 1.1 skrll
704 1.1 skrll /* A 16 bit absolute relocation. */
705 1.1 skrll HOWTO (R_M32R_16_RELA, /* type */
706 1.1 skrll 0, /* rightshift */
707 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
708 1.1 skrll 16, /* bitsize */
709 1.1 skrll FALSE, /* pc_relative */
710 1.1 skrll 0, /* bitpos */
711 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
712 1.1 skrll bfd_elf_generic_reloc, /* special_function */
713 1.1 skrll "R_M32R_16_RELA", /* name */
714 1.1 skrll FALSE, /* partial_inplace */
715 1.1 skrll 0xffff, /* src_mask */
716 1.1 skrll 0xffff, /* dst_mask */
717 1.1 skrll FALSE), /* pcrel_offset */
718 1.1 skrll
719 1.1 skrll /* A 32 bit absolute relocation. */
720 1.1 skrll HOWTO (R_M32R_32_RELA, /* type */
721 1.1 skrll 0, /* rightshift */
722 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
723 1.1 skrll 32, /* bitsize */
724 1.1 skrll FALSE, /* pc_relative */
725 1.1 skrll 0, /* bitpos */
726 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
727 1.1 skrll bfd_elf_generic_reloc,/* special_function */
728 1.1 skrll "R_M32R_32_RELA", /* name */
729 1.1 skrll FALSE, /* partial_inplace */
730 1.1 skrll 0xffffffff, /* src_mask */
731 1.1 skrll 0xffffffff, /* dst_mask */
732 1.1 skrll FALSE), /* pcrel_offset */
733 1.1 skrll
734 1.1 skrll /* A 24 bit address. */
735 1.1 skrll HOWTO (R_M32R_24_RELA, /* type */
736 1.1 skrll 0, /* rightshift */
737 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
738 1.1 skrll 24, /* bitsize */
739 1.1 skrll FALSE, /* pc_relative */
740 1.1 skrll 0, /* bitpos */
741 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
742 1.1 skrll bfd_elf_generic_reloc,/* special_function */
743 1.1 skrll "R_M32R_24_RELA", /* name */
744 1.1 skrll FALSE, /* partial_inplace */
745 1.1 skrll 0xffffff, /* src_mask */
746 1.1 skrll 0xffffff, /* dst_mask */
747 1.1 skrll FALSE), /* pcrel_offset */
748 1.1 skrll
749 1.1 skrll HOWTO (R_M32R_10_PCREL_RELA, /* type */
750 1.1 skrll 2, /* rightshift */
751 1.1 skrll 1, /* size (0 = byte, 1 = short, 2 = long) */
752 1.1 skrll 10, /* bitsize */
753 1.1 skrll TRUE, /* pc_relative */
754 1.1 skrll 0, /* bitpos */
755 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
756 1.1 skrll m32r_elf_10_pcrel_reloc, /* special_function */
757 1.1 skrll "R_M32R_10_PCREL_RELA",/* name */
758 1.1 skrll FALSE, /* partial_inplace */
759 1.1 skrll 0xff, /* src_mask */
760 1.1 skrll 0xff, /* dst_mask */
761 1.1 skrll TRUE), /* pcrel_offset */
762 1.1 skrll
763 1.1 skrll /* A relative 18 bit relocation, right shifted by 2. */
764 1.1 skrll HOWTO (R_M32R_18_PCREL_RELA, /* type */
765 1.1 skrll 2, /* rightshift */
766 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
767 1.1 skrll 16, /* bitsize */
768 1.1 skrll TRUE, /* pc_relative */
769 1.1 skrll 0, /* bitpos */
770 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
771 1.1 skrll bfd_elf_generic_reloc, /* special_function */
772 1.1 skrll "R_M32R_18_PCREL_RELA",/* name */
773 1.1 skrll FALSE, /* partial_inplace */
774 1.1 skrll 0xffff, /* src_mask */
775 1.1 skrll 0xffff, /* dst_mask */
776 1.1 skrll TRUE), /* pcrel_offset */
777 1.1 skrll
778 1.1 skrll /* A relative 26 bit relocation, right shifted by 2. */
779 1.1 skrll HOWTO (R_M32R_26_PCREL_RELA, /* type */
780 1.1 skrll 2, /* rightshift */
781 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
782 1.1 skrll 26, /* bitsize */
783 1.1 skrll TRUE, /* pc_relative */
784 1.1 skrll 0, /* bitpos */
785 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
786 1.1 skrll bfd_elf_generic_reloc, /* special_function */
787 1.1 skrll "R_M32R_26_PCREL_RELA",/* name */
788 1.1 skrll FALSE, /* partial_inplace */
789 1.1 skrll 0xffffff, /* src_mask */
790 1.1 skrll 0xffffff, /* dst_mask */
791 1.1 skrll TRUE), /* pcrel_offset */
792 1.1 skrll
793 1.1 skrll /* High 16 bits of address when lower 16 is or'd in. */
794 1.1 skrll HOWTO (R_M32R_HI16_ULO_RELA, /* type */
795 1.1 skrll 16, /* rightshift */
796 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
797 1.1 skrll 16, /* bitsize */
798 1.1 skrll FALSE, /* pc_relative */
799 1.1 skrll 0, /* bitpos */
800 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
801 1.1 skrll bfd_elf_generic_reloc, /* special_function */
802 1.1 skrll "R_M32R_HI16_ULO_RELA",/* name */
803 1.1 skrll FALSE, /* partial_inplace */
804 1.1 skrll 0x0000ffff, /* src_mask */
805 1.1 skrll 0x0000ffff, /* dst_mask */
806 1.1 skrll FALSE), /* pcrel_offset */
807 1.1 skrll
808 1.1 skrll /* High 16 bits of address when lower 16 is added in. */
809 1.1 skrll HOWTO (R_M32R_HI16_SLO_RELA, /* type */
810 1.1 skrll 16, /* rightshift */
811 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
812 1.1 skrll 16, /* bitsize */
813 1.1 skrll FALSE, /* pc_relative */
814 1.1 skrll 0, /* bitpos */
815 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
816 1.1 skrll bfd_elf_generic_reloc, /* special_function */
817 1.1 skrll "R_M32R_HI16_SLO_RELA",/* name */
818 1.1 skrll FALSE, /* partial_inplace */
819 1.1 skrll 0x0000ffff, /* src_mask */
820 1.1 skrll 0x0000ffff, /* dst_mask */
821 1.1 skrll FALSE), /* pcrel_offset */
822 1.1 skrll
823 1.1 skrll /* Lower 16 bits of address. */
824 1.1 skrll HOWTO (R_M32R_LO16_RELA, /* type */
825 1.1 skrll 0, /* rightshift */
826 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
827 1.1 skrll 16, /* bitsize */
828 1.1 skrll FALSE, /* pc_relative */
829 1.1 skrll 0, /* bitpos */
830 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
831 1.1 skrll bfd_elf_generic_reloc, /* special_function */
832 1.1 skrll "R_M32R_LO16_RELA", /* name */
833 1.1 skrll FALSE, /* partial_inplace */
834 1.1 skrll 0x0000ffff, /* src_mask */
835 1.1 skrll 0x0000ffff, /* dst_mask */
836 1.1 skrll FALSE), /* pcrel_offset */
837 1.1 skrll
838 1.1 skrll /* Small data area 16 bits offset. */
839 1.1 skrll HOWTO (R_M32R_SDA16_RELA, /* type */
840 1.1 skrll 0, /* rightshift */
841 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
842 1.1 skrll 16, /* bitsize */
843 1.1 skrll FALSE, /* pc_relative */
844 1.1 skrll 0, /* bitpos */
845 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
846 1.1 skrll bfd_elf_generic_reloc, /* special_function */
847 1.1 skrll "R_M32R_SDA16_RELA", /* name */
848 1.1 skrll TRUE, /* partial_inplace */ /* FIXME: correct? */
849 1.1 skrll 0x0000ffff, /* src_mask */
850 1.1 skrll 0x0000ffff, /* dst_mask */
851 1.1 skrll FALSE), /* pcrel_offset */
852 1.1 skrll
853 1.1 skrll /* GNU extension to record C++ vtable hierarchy. */
854 1.1 skrll HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
855 1.1 skrll 0, /* rightshift */
856 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
857 1.1 skrll 0, /* bitsize */
858 1.1 skrll FALSE, /* pc_relative */
859 1.1 skrll 0, /* bitpos */
860 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
861 1.1 skrll NULL, /* special_function */
862 1.1 skrll "R_M32R_RELA_GNU_VTINHERIT", /* name */
863 1.1 skrll FALSE, /* partial_inplace */
864 1.1 skrll 0, /* src_mask */
865 1.1 skrll 0, /* dst_mask */
866 1.1 skrll FALSE), /* pcrel_offset */
867 1.1 skrll
868 1.1 skrll /* GNU extension to record C++ vtable member usage. */
869 1.1 skrll HOWTO (R_M32R_RELA_GNU_VTENTRY, /* type */
870 1.1 skrll 0, /* rightshift */
871 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
872 1.1 skrll 0, /* bitsize */
873 1.1 skrll FALSE, /* pc_relative */
874 1.1 skrll 0, /* bitpos */
875 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
876 1.1 skrll _bfd_elf_rel_vtable_reloc_fn, /* special_function */
877 1.1 skrll "R_M32R_RELA_GNU_VTENTRY", /* name */
878 1.1 skrll FALSE, /* partial_inplace */
879 1.1 skrll 0, /* src_mask */
880 1.1 skrll 0, /* dst_mask */
881 1.1 skrll FALSE), /* pcrel_offset */
882 1.1 skrll
883 1.1 skrll /* A 32 bit PC relative relocation. */
884 1.1 skrll HOWTO (R_M32R_REL32, /* type */
885 1.1 skrll 0, /* rightshift */
886 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
887 1.1 skrll 32, /* bitsize */
888 1.1 skrll TRUE, /* pc_relative */
889 1.1 skrll 0, /* bitpos */
890 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
891 1.1 skrll bfd_elf_generic_reloc,/* special_function */
892 1.1 skrll "R_M32R_REL32", /* name */
893 1.1 skrll FALSE, /* partial_inplace */
894 1.1 skrll 0xffffffff, /* src_mask */
895 1.1 skrll 0xffffffff, /* dst_mask */
896 1.1 skrll TRUE), /* pcrel_offset */
897 1.1 skrll
898 1.1 skrll EMPTY_HOWTO (46),
899 1.1 skrll EMPTY_HOWTO (47),
900 1.1 skrll
901 1.1 skrll /* Like R_M32R_24, but referring to the GOT table entry for
902 1.1 skrll the symbol. */
903 1.1 skrll HOWTO (R_M32R_GOT24, /* type */
904 1.1 skrll 0, /* rightshift */
905 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
906 1.1 skrll 24, /* bitsize */
907 1.1 skrll FALSE, /* pc_relative */
908 1.1 skrll 0, /* bitpos */
909 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
910 1.1 skrll bfd_elf_generic_reloc, /* special_function */
911 1.1 skrll "R_M32R_GOT24", /* name */
912 1.1 skrll FALSE, /* partial_inplace */
913 1.1 skrll 0xffffff, /* src_mask */
914 1.1 skrll 0xffffff, /* dst_mask */
915 1.1 skrll FALSE), /* pcrel_offset */
916 1.1 skrll
917 1.1 skrll /* Like R_M32R_PCREL, but referring to the procedure linkage table
918 1.1 skrll entry for the symbol. */
919 1.1 skrll HOWTO (R_M32R_26_PLTREL, /* type */
920 1.1 skrll 2, /* rightshift */
921 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
922 1.1 skrll 24, /* bitsize */
923 1.1 skrll TRUE, /* pc_relative */
924 1.1 skrll 0, /* bitpos */
925 1.1 skrll complain_overflow_signed, /* complain_on_overflow */
926 1.1 skrll bfd_elf_generic_reloc, /* special_function */
927 1.1 skrll "R_M32R_26_PLTREL", /* name */
928 1.1 skrll FALSE, /* partial_inplace */
929 1.1 skrll 0xffffff, /* src_mask */
930 1.1 skrll 0xffffff, /* dst_mask */
931 1.1 skrll TRUE), /* pcrel_offset */
932 1.1 skrll
933 1.1 skrll /* This is used only by the dynamic linker. The symbol should exist
934 1.1 skrll both in the object being run and in some shared library. The
935 1.1 skrll dynamic linker copies the data addressed by the symbol from the
936 1.1 skrll shared library into the object, because the object being
937 1.1 skrll run has to have the data at some particular address. */
938 1.1 skrll HOWTO (R_M32R_COPY, /* type */
939 1.1 skrll 0, /* rightshift */
940 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
941 1.1 skrll 32, /* bitsize */
942 1.1 skrll FALSE, /* pc_relative */
943 1.1 skrll 0, /* bitpos */
944 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
945 1.1 skrll bfd_elf_generic_reloc, /* special_function */
946 1.1 skrll "R_M32R_COPY", /* name */
947 1.1 skrll FALSE, /* partial_inplace */
948 1.1 skrll 0xffffffff, /* src_mask */
949 1.1 skrll 0xffffffff, /* dst_mask */
950 1.1 skrll FALSE), /* pcrel_offset */
951 1.1 skrll
952 1.1 skrll /* Like R_M32R_24, but used when setting global offset table
953 1.1 skrll entries. */
954 1.1 skrll HOWTO (R_M32R_GLOB_DAT, /* type */
955 1.1 skrll 0, /* rightshift */
956 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
957 1.1 skrll 32, /* bitsize */
958 1.1 skrll FALSE, /* pc_relative */
959 1.1 skrll 0, /* bitpos */
960 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
961 1.1 skrll bfd_elf_generic_reloc, /* special_function */
962 1.1 skrll "R_M32R_GLOB_DAT", /* name */
963 1.1 skrll FALSE, /* partial_inplace */
964 1.1 skrll 0xffffffff, /* src_mask */
965 1.1 skrll 0xffffffff, /* dst_mask */
966 1.1 skrll FALSE), /* pcrel_offset */
967 1.1 skrll
968 1.1 skrll /* Marks a procedure linkage table entry for a symbol. */
969 1.1 skrll HOWTO (R_M32R_JMP_SLOT, /* type */
970 1.1 skrll 0, /* rightshift */
971 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
972 1.1 skrll 32, /* bitsize */
973 1.1 skrll FALSE, /* pc_relative */
974 1.1 skrll 0, /* bitpos */
975 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
976 1.1 skrll bfd_elf_generic_reloc, /* special_function */
977 1.1 skrll "R_M32R_JMP_SLOT", /* name */
978 1.1 skrll FALSE, /* partial_inplace */
979 1.1 skrll 0xffffffff, /* src_mask */
980 1.1 skrll 0xffffffff, /* dst_mask */
981 1.1 skrll FALSE), /* pcrel_offset */
982 1.1 skrll
983 1.1 skrll /* Used only by the dynamic linker. When the object is run, this
984 1.1 skrll longword is set to the load address of the object, plus the
985 1.1 skrll addend. */
986 1.1 skrll HOWTO (R_M32R_RELATIVE, /* type */
987 1.1 skrll 0, /* rightshift */
988 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
989 1.1 skrll 32, /* bitsize */
990 1.1 skrll FALSE, /* pc_relative */
991 1.1 skrll 0, /* bitpos */
992 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
993 1.1 skrll bfd_elf_generic_reloc, /* special_function */
994 1.1 skrll "R_M32R_RELATIVE", /* name */
995 1.1 skrll FALSE, /* partial_inplace */
996 1.1 skrll 0xffffffff, /* src_mask */
997 1.1 skrll 0xffffffff, /* dst_mask */
998 1.1 skrll FALSE), /* pcrel_offset */
999 1.1 skrll
1000 1.1 skrll HOWTO (R_M32R_GOTOFF, /* type */
1001 1.1 skrll 0, /* rightshift */
1002 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1003 1.1 skrll 24, /* bitsize */
1004 1.1 skrll FALSE, /* pc_relative */
1005 1.1 skrll 0, /* bitpos */
1006 1.1 skrll complain_overflow_bitfield, /* complain_on_overflow */
1007 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1008 1.1 skrll "R_M32R_GOTOFF", /* name */
1009 1.1 skrll FALSE, /* partial_inplace */
1010 1.1 skrll 0xffffff, /* src_mask */
1011 1.1 skrll 0xffffff, /* dst_mask */
1012 1.1 skrll FALSE), /* pcrel_offset */
1013 1.1 skrll
1014 1.1 skrll /* An PC Relative 24-bit relocation used when setting PIC offset
1015 1.1 skrll table register. */
1016 1.1 skrll HOWTO (R_M32R_GOTPC24, /* type */
1017 1.1 skrll 0, /* rightshift */
1018 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1019 1.1 skrll 24, /* bitsize */
1020 1.1 skrll TRUE, /* pc_relative */
1021 1.1 skrll 0, /* bitpos */
1022 1.1 skrll complain_overflow_unsigned, /* complain_on_overflow */
1023 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1024 1.1 skrll "R_M32R_GOTPC24", /* name */
1025 1.1 skrll FALSE, /* partial_inplace */
1026 1.1 skrll 0xffffff, /* src_mask */
1027 1.1 skrll 0xffffff, /* dst_mask */
1028 1.1 skrll TRUE), /* pcrel_offset */
1029 1.1 skrll
1030 1.1 skrll /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1031 1.1 skrll the symbol. */
1032 1.1 skrll HOWTO (R_M32R_GOT16_HI_ULO, /* type */
1033 1.1 skrll 16, /* rightshift */
1034 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1035 1.1 skrll 16, /* bitsize */
1036 1.1 skrll FALSE, /* pc_relative */
1037 1.1 skrll 0, /* bitpos */
1038 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1039 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1040 1.1 skrll "R_M32R_GOT16_HI_ULO", /* name */
1041 1.1 skrll FALSE, /* partial_inplace */
1042 1.1 skrll 0x0000ffff, /* src_mask */
1043 1.1 skrll 0x0000ffff, /* dst_mask */
1044 1.1 skrll FALSE), /* pcrel_offset */
1045 1.1 skrll
1046 1.1 skrll /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1047 1.1 skrll the symbol. */
1048 1.1 skrll HOWTO (R_M32R_GOT16_HI_SLO, /* type */
1049 1.1 skrll 16, /* rightshift */
1050 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1051 1.1 skrll 16, /* bitsize */
1052 1.1 skrll FALSE, /* pc_relative */
1053 1.1 skrll 0, /* bitpos */
1054 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1055 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1056 1.1 skrll "R_M32R_GOT16_HI_SLO", /* name */
1057 1.1 skrll FALSE, /* partial_inplace */
1058 1.1 skrll 0x0000ffff, /* src_mask */
1059 1.1 skrll 0x0000ffff, /* dst_mask */
1060 1.1 skrll FALSE), /* pcrel_offset */
1061 1.1 skrll
1062 1.1 skrll /* Like R_M32R_LO16, but referring to the GOT table entry for
1063 1.1 skrll the symbol. */
1064 1.1 skrll HOWTO (R_M32R_GOT16_LO, /* type */
1065 1.1 skrll 0, /* rightshift */
1066 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1067 1.1 skrll 16, /* bitsize */
1068 1.1 skrll FALSE, /* pc_relative */
1069 1.1 skrll 0, /* bitpos */
1070 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1071 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1072 1.1 skrll "R_M32R_GOT16_LO", /* name */
1073 1.1 skrll FALSE, /* partial_inplace */
1074 1.1 skrll 0x0000ffff, /* src_mask */
1075 1.1 skrll 0x0000ffff, /* dst_mask */
1076 1.1 skrll FALSE), /* pcrel_offset */
1077 1.1 skrll
1078 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1079 1.1 skrll Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1080 1.1 skrll the symbol. */
1081 1.1 skrll HOWTO (R_M32R_GOTPC_HI_ULO, /* type */
1082 1.1 skrll 16, /* rightshift */
1083 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1084 1.1 skrll 16, /* bitsize */
1085 1.1 skrll FALSE, /* pc_relative */
1086 1.1 skrll 0, /* bitpos */
1087 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1088 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1089 1.1 skrll "R_M32R_GOTPC_HI_ULO", /* name */
1090 1.1 skrll FALSE, /* partial_inplace */
1091 1.1 skrll 0x0000ffff, /* src_mask */
1092 1.1 skrll 0x0000ffff, /* dst_mask */
1093 1.1 skrll TRUE), /* pcrel_offset */
1094 1.1 skrll
1095 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1096 1.1 skrll Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1097 1.1 skrll the symbol. */
1098 1.1 skrll HOWTO (R_M32R_GOTPC_HI_SLO, /* type */
1099 1.1 skrll 16, /* rightshift */
1100 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1101 1.1 skrll 16, /* bitsize */
1102 1.1 skrll FALSE, /* pc_relative */
1103 1.1 skrll 0, /* bitpos */
1104 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1105 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1106 1.1 skrll "R_M32R_GOTPC_HI_SLO", /* name */
1107 1.1 skrll FALSE, /* partial_inplace */
1108 1.1 skrll 0x0000ffff, /* src_mask */
1109 1.1 skrll 0x0000ffff, /* dst_mask */
1110 1.1 skrll TRUE), /* pcrel_offset */
1111 1.1 skrll
1112 1.1 skrll /* An PC Relative relocation used when setting PIC offset table register.
1113 1.1 skrll Like R_M32R_LO16, but referring to the GOT table entry for
1114 1.1 skrll the symbol. */
1115 1.1 skrll HOWTO (R_M32R_GOTPC_LO, /* type */
1116 1.1 skrll 0, /* rightshift */
1117 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1118 1.1 skrll 16, /* bitsize */
1119 1.1 skrll FALSE, /* pc_relative */
1120 1.1 skrll 0, /* bitpos */
1121 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1122 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1123 1.1 skrll "R_M32R_GOTPC_LO", /* name */
1124 1.1 skrll FALSE, /* partial_inplace */
1125 1.1 skrll 0x0000ffff, /* src_mask */
1126 1.1 skrll 0x0000ffff, /* dst_mask */
1127 1.1 skrll TRUE), /* pcrel_offset */
1128 1.1 skrll
1129 1.1 skrll HOWTO (R_M32R_GOTOFF_HI_ULO, /* type */
1130 1.1 skrll 16, /* rightshift */
1131 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1132 1.1 skrll 16, /* bitsize */
1133 1.1 skrll FALSE, /* pc_relative */
1134 1.1 skrll 0, /* bitpos */
1135 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1136 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1137 1.1 skrll "R_M32R_GOTOFF_HI_ULO",/* name */
1138 1.1 skrll FALSE, /* partial_inplace */
1139 1.1 skrll 0x0000ffff, /* src_mask */
1140 1.1 skrll 0x0000ffff, /* dst_mask */
1141 1.1 skrll FALSE), /* pcrel_offset */
1142 1.1 skrll
1143 1.1 skrll HOWTO (R_M32R_GOTOFF_HI_SLO, /* type */
1144 1.1 skrll 16, /* rightshift */
1145 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1146 1.1 skrll 16, /* bitsize */
1147 1.1 skrll FALSE, /* pc_relative */
1148 1.1 skrll 0, /* bitpos */
1149 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1150 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1151 1.1 skrll "R_M32R_GOTOFF_HI_SLO",/* name */
1152 1.1 skrll FALSE, /* partial_inplace */
1153 1.1 skrll 0x0000ffff, /* src_mask */
1154 1.1 skrll 0x0000ffff, /* dst_mask */
1155 1.1 skrll FALSE), /* pcrel_offset */
1156 1.1 skrll
1157 1.1 skrll HOWTO (R_M32R_GOTOFF_LO, /* type */
1158 1.1 skrll 0, /* rightshift */
1159 1.1 skrll 2, /* size (0 = byte, 1 = short, 2 = long) */
1160 1.1 skrll 16, /* bitsize */
1161 1.1 skrll FALSE, /* pc_relative */
1162 1.1 skrll 0, /* bitpos */
1163 1.1 skrll complain_overflow_dont, /* complain_on_overflow */
1164 1.1 skrll bfd_elf_generic_reloc, /* special_function */
1165 1.1 skrll "R_M32R_GOTOFF_LO", /* name */
1166 1.1 skrll FALSE, /* partial_inplace */
1167 1.1 skrll 0x0000ffff, /* src_mask */
1168 1.1 skrll 0x0000ffff, /* dst_mask */
1169 1.1 skrll FALSE), /* pcrel_offset */
1170 1.1 skrll };
1171 1.1 skrll
1172 1.1 skrll /* Map BFD reloc types to M32R ELF reloc types. */
1173 1.1 skrll
1174 1.1 skrll struct m32r_reloc_map
1175 1.1 skrll {
1176 1.1 skrll bfd_reloc_code_real_type bfd_reloc_val;
1177 1.1 skrll unsigned char elf_reloc_val;
1178 1.1 skrll };
1179 1.1 skrll
1180 1.1 skrll #ifdef USE_M32R_OLD_RELOC
1181 1.1 skrll static const struct m32r_reloc_map m32r_reloc_map_old[] =
1182 1.1 skrll {
1183 1.1 skrll { BFD_RELOC_NONE, R_M32R_NONE },
1184 1.1 skrll { BFD_RELOC_16, R_M32R_16 },
1185 1.1 skrll { BFD_RELOC_32, R_M32R_32 },
1186 1.1 skrll { BFD_RELOC_M32R_24, R_M32R_24 },
1187 1.1 skrll { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1188 1.1 skrll { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1189 1.1 skrll { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1190 1.1 skrll { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1191 1.1 skrll { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1192 1.1 skrll { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1193 1.1 skrll { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1194 1.1 skrll { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1195 1.1 skrll { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1196 1.1 skrll };
1197 1.1 skrll #else
1198 1.1 skrll static const struct m32r_reloc_map m32r_reloc_map[] =
1199 1.1 skrll {
1200 1.1 skrll { BFD_RELOC_NONE, R_M32R_NONE },
1201 1.1 skrll { BFD_RELOC_16, R_M32R_16_RELA },
1202 1.1 skrll { BFD_RELOC_32, R_M32R_32_RELA },
1203 1.1 skrll { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1204 1.1 skrll { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1205 1.1 skrll { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1206 1.1 skrll { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1207 1.1 skrll { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1208 1.1 skrll { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1209 1.1 skrll { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1210 1.1 skrll { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1211 1.1 skrll { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1212 1.1 skrll { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1213 1.1 skrll { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1214 1.1 skrll
1215 1.1 skrll { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1216 1.1 skrll { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1217 1.1 skrll { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1218 1.1 skrll { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1219 1.1 skrll { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1220 1.1 skrll { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1221 1.1 skrll { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1222 1.1 skrll { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1223 1.1 skrll { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1224 1.1 skrll { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1225 1.1 skrll { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1226 1.1 skrll { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1227 1.1 skrll { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1228 1.1 skrll { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1229 1.1 skrll { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1230 1.1 skrll { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1231 1.1 skrll { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1232 1.1 skrll };
1233 1.1 skrll #endif
1234 1.1 skrll
1235 1.1 skrll static reloc_howto_type *
1236 1.1 skrll bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1237 1.1 skrll bfd_reloc_code_real_type code)
1238 1.1 skrll {
1239 1.1 skrll unsigned int i;
1240 1.1 skrll
1241 1.1 skrll #ifdef USE_M32R_OLD_RELOC
1242 1.1 skrll for (i = 0;
1243 1.1 skrll i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1244 1.1 skrll i++)
1245 1.1 skrll if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1246 1.1 skrll return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1247 1.1 skrll
1248 1.1 skrll #else /* ! USE_M32R_OLD_RELOC */
1249 1.1 skrll
1250 1.1 skrll for (i = 0;
1251 1.1 skrll i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1252 1.1 skrll i++)
1253 1.1 skrll if (m32r_reloc_map[i].bfd_reloc_val == code)
1254 1.1 skrll return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1255 1.1 skrll #endif
1256 1.1 skrll
1257 1.1 skrll return NULL;
1258 1.1 skrll }
1259 1.1 skrll
1260 1.1 skrll static reloc_howto_type *
1261 1.1 skrll bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1262 1.1 skrll const char *r_name)
1263 1.1 skrll {
1264 1.1 skrll unsigned int i;
1265 1.1 skrll
1266 1.1 skrll for (i = 0;
1267 1.1 skrll i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1268 1.1 skrll i++)
1269 1.1 skrll if (m32r_elf_howto_table[i].name != NULL
1270 1.1 skrll && strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1271 1.1 skrll return &m32r_elf_howto_table[i];
1272 1.1 skrll
1273 1.1 skrll return NULL;
1274 1.1 skrll }
1275 1.1 skrll
1276 1.1 skrll /* Set the howto pointer for an M32R ELF reloc. */
1277 1.1 skrll
1278 1.1 skrll static void
1279 1.1 skrll m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1280 1.1 skrll arelent *cache_ptr,
1281 1.1 skrll Elf_Internal_Rela *dst)
1282 1.1 skrll {
1283 1.1 skrll unsigned int r_type;
1284 1.1 skrll
1285 1.1 skrll r_type = ELF32_R_TYPE (dst->r_info);
1286 1.1 skrll BFD_ASSERT (ELF32_R_TYPE(dst->r_info) <= (unsigned int) R_M32R_GNU_VTENTRY);
1287 1.1 skrll cache_ptr->howto = &m32r_elf_howto_table[r_type];
1288 1.1 skrll }
1289 1.1 skrll
1290 1.1 skrll static void
1291 1.1 skrll m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1292 1.1 skrll arelent *cache_ptr,
1293 1.1 skrll Elf_Internal_Rela *dst)
1294 1.1 skrll {
1295 1.1 skrll BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1296 1.1 skrll || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1297 1.1 skrll && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1298 1.1 skrll cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1299 1.1 skrll }
1300 1.1 skrll
1301 1.1 skrll
1302 1.1 skrll /* Given a BFD section, try to locate the corresponding ELF section
1304 1.1 skrll index. */
1305 1.1 skrll
1306 1.1 skrll static bfd_boolean
1307 1.1 skrll _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 1.1 skrll asection *sec,
1309 1.1 skrll int *retval)
1310 1.1 skrll {
1311 1.1 skrll if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1312 1.1 skrll {
1313 1.1 skrll *retval = SHN_M32R_SCOMMON;
1314 1.1 skrll return TRUE;
1315 1.1 skrll }
1316 1.1 skrll return FALSE;
1317 1.1 skrll }
1318 1.1 skrll
1319 1.1 skrll /* M32R ELF uses two common sections. One is the usual one, and the other
1320 1.1 skrll is for small objects. All the small objects are kept together, and then
1321 1.1 skrll referenced via one register, which yields faster assembler code. It is
1322 1.1 skrll up to the compiler to emit an instruction to load the register with
1323 1.1 skrll _SDA_BASE. This is what we use for the small common section. This
1324 1.1 skrll approach is copied from elf32-mips.c. */
1325 1.1 skrll static asection m32r_elf_scom_section;
1326 1.1 skrll static asymbol m32r_elf_scom_symbol;
1327 1.1 skrll static asymbol *m32r_elf_scom_symbol_ptr;
1328 1.1 skrll
1329 1.1 skrll /* Handle the special M32R section numbers that a symbol may use. */
1330 1.1 skrll
1331 1.1 skrll static void
1332 1.1 skrll _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1333 1.1 skrll {
1334 1.1 skrll elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1335 1.1 skrll
1336 1.1 skrll switch (elfsym->internal_elf_sym.st_shndx)
1337 1.1 skrll {
1338 1.1 skrll case SHN_M32R_SCOMMON:
1339 1.1 skrll if (m32r_elf_scom_section.name == NULL)
1340 1.1 skrll {
1341 1.1 skrll /* Initialize the small common section. */
1342 1.1 skrll m32r_elf_scom_section.name = ".scommon";
1343 1.1 skrll m32r_elf_scom_section.flags = SEC_IS_COMMON;
1344 1.1 skrll m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1345 1.1 skrll m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1346 1.1 skrll m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1347 1.1 skrll m32r_elf_scom_symbol.name = ".scommon";
1348 1.1 skrll m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1349 1.1 skrll m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1350 1.1 skrll m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1351 1.1 skrll }
1352 1.1 skrll asym->section = &m32r_elf_scom_section;
1353 1.1 skrll asym->value = elfsym->internal_elf_sym.st_size;
1354 1.1 skrll break;
1355 1.1 skrll }
1356 1.1 skrll }
1357 1.1 skrll
1358 1.1 skrll /* Hook called by the linker routine which adds symbols from an object
1359 1.1 skrll file. We must handle the special M32R section numbers here.
1360 1.1 skrll We also keep watching for whether we need to create the sdata special
1361 1.1 skrll linker sections. */
1362 1.1 skrll
1363 1.1 skrll static bfd_boolean
1364 1.1 skrll m32r_elf_add_symbol_hook (bfd *abfd,
1365 1.1 skrll struct bfd_link_info *info,
1366 1.1 skrll Elf_Internal_Sym *sym,
1367 1.1 skrll const char **namep,
1368 1.1 skrll flagword *flagsp ATTRIBUTE_UNUSED,
1369 1.1 skrll asection **secp,
1370 1.1 skrll bfd_vma *valp)
1371 1.1 skrll {
1372 1.1 skrll if (! info->relocatable
1373 1.1 skrll && (*namep)[0] == '_' && (*namep)[1] == 'S'
1374 1.1 skrll && strcmp (*namep, "_SDA_BASE_") == 0
1375 1.1 skrll && is_elf_hash_table (info->hash))
1376 1.1 skrll {
1377 1.1 skrll /* This is simpler than using _bfd_elf_create_linker_section
1378 1.1 skrll (our needs are simpler than ppc's needs). Also
1379 1.1 skrll _bfd_elf_create_linker_section currently has a bug where if a .sdata
1380 1.1 skrll section already exists a new one is created that follows it which
1381 1.1 skrll screws of _SDA_BASE_ address calcs because output_offset != 0. */
1382 1.1 skrll struct elf_link_hash_entry *h;
1383 1.1 skrll struct bfd_link_hash_entry *bh;
1384 1.1 skrll asection *s = bfd_get_section_by_name (abfd, ".sdata");
1385 1.1 skrll
1386 1.1 skrll /* The following code was cobbled from elf32-ppc.c and elflink.c. */
1387 1.1 skrll if (s == NULL)
1388 1.1 skrll {
1389 1.1 skrll flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1390 1.1 skrll | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1391 1.1 skrll
1392 1.1 skrll s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 1.1 skrll flags);
1394 1.1 skrll if (s == NULL)
1395 1.1 skrll return FALSE;
1396 1.1 skrll bfd_set_section_alignment (abfd, s, 2);
1397 1.1 skrll }
1398 1.1 skrll
1399 1.1 skrll bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1400 1.1 skrll FALSE, FALSE, FALSE);
1401 1.1 skrll
1402 1.1 skrll if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1403 1.1 skrll && !(_bfd_generic_link_add_one_symbol (info,
1404 1.1 skrll abfd,
1405 1.1 skrll "_SDA_BASE_",
1406 1.1 skrll BSF_GLOBAL,
1407 1.1 skrll s,
1408 1.1 skrll (bfd_vma) 32768,
1409 1.1 skrll NULL,
1410 1.1 skrll FALSE,
1411 1.1 skrll get_elf_backend_data (abfd)->collect,
1412 1.1 skrll &bh)))
1413 1.1 skrll return FALSE;
1414 1.1 skrll h = (struct elf_link_hash_entry *) bh;
1415 1.1 skrll h->type = STT_OBJECT;
1416 1.1 skrll }
1417 1.1 skrll
1418 1.1 skrll switch (sym->st_shndx)
1419 1.1 skrll {
1420 1.1 skrll case SHN_M32R_SCOMMON:
1421 1.1 skrll *secp = bfd_make_section_old_way (abfd, ".scommon");
1422 1.1 skrll (*secp)->flags |= SEC_IS_COMMON;
1423 1.1 skrll *valp = sym->st_size;
1424 1.1 skrll break;
1425 1.1 skrll }
1426 1.1 skrll
1427 1.1 skrll return TRUE;
1428 1.1 skrll }
1429 1.1 skrll
1430 1.1 skrll /* We have to figure out the SDA_BASE value, so that we can adjust the
1431 1.1 skrll symbol value correctly. We look up the symbol _SDA_BASE_ in the output
1432 1.1 skrll BFD. If we can't find it, we're stuck. We cache it in the ELF
1433 1.1 skrll target data. We don't need to adjust the symbol value for an
1434 1.1 skrll external symbol if we are producing relocatable output. */
1435 1.1 skrll
1436 1.1 skrll static bfd_reloc_status_type
1437 1.1 skrll m32r_elf_final_sda_base (bfd *output_bfd,
1438 1.1 skrll struct bfd_link_info *info,
1439 1.1 skrll const char **error_message,
1440 1.1 skrll bfd_vma *psb)
1441 1.1 skrll {
1442 1.1 skrll if (elf_gp (output_bfd) == 0)
1443 1.1 skrll {
1444 1.1 skrll struct bfd_link_hash_entry *h;
1445 1.1 skrll
1446 1.1 skrll h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1447 1.1 skrll if (h != NULL && h->type == bfd_link_hash_defined)
1448 1.1 skrll elf_gp (output_bfd) = (h->u.def.value
1449 1.1 skrll + h->u.def.section->output_section->vma
1450 1.1 skrll + h->u.def.section->output_offset);
1451 1.1 skrll else
1452 1.1 skrll {
1453 1.1 skrll /* Only get the error once. */
1454 1.1 skrll *psb = elf_gp (output_bfd) = 4;
1455 1.1 skrll *error_message =
1456 1.1 skrll (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1457 1.1 skrll return bfd_reloc_dangerous;
1458 1.1 skrll }
1459 1.1 skrll }
1460 1.1 skrll *psb = elf_gp (output_bfd);
1461 1.1 skrll return bfd_reloc_ok;
1462 1.1 skrll }
1463 1.1 skrll
1464 1.1 skrll /* Return size of a PLT entry. */
1466 1.1 skrll #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1467 1.1 skrll
1468 1.1 skrll /* The m32r linker needs to keep track of the number of relocs that it
1469 1.1 skrll decides to copy in check_relocs for each symbol. This is so that
1470 1.1 skrll it can discard PC relative relocs if it doesn't need them when
1471 1.1 skrll linking with -Bsymbolic. We store the information in a field
1472 1.1 skrll extending the regular ELF linker hash table. */
1473 1.1 skrll
1474 1.1 skrll /* This structure keeps track of the number of PC relative relocs we
1475 1.1 skrll have copied for a given symbol. */
1476 1.1 skrll
1477 1.1 skrll struct elf_m32r_pcrel_relocs_copied
1478 1.1 skrll {
1479 1.1 skrll /* Next section. */
1480 1.1 skrll struct elf_m32r_pcrel_relocs_copied *next;
1481 1.1 skrll /* A section in dynobj. */
1482 1.1 skrll asection *section;
1483 1.1 skrll /* Number of relocs copied in this section. */
1484 1.1 skrll bfd_size_type count;
1485 1.1 skrll };
1486 1.1 skrll
1487 1.1 skrll /* The sh linker needs to keep track of the number of relocs that it
1488 1.1 skrll decides to copy as dynamic relocs in check_relocs for each symbol.
1489 1.1 skrll This is so that it can later discard them if they are found to be
1490 1.1 skrll unnecessary. We store the information in a field extending the
1491 1.1 skrll regular ELF linker hash table. */
1492 1.1 skrll
1493 1.1 skrll struct elf_m32r_dyn_relocs
1494 1.1 skrll {
1495 1.1 skrll struct elf_m32r_dyn_relocs *next;
1496 1.1 skrll
1497 1.1 skrll /* The input section of the reloc. */
1498 1.1 skrll asection *sec;
1499 1.1 skrll
1500 1.1 skrll /* Total number of relocs copied for the input section. */
1501 1.1 skrll bfd_size_type count;
1502 1.1 skrll
1503 1.1 skrll /* Number of pc-relative relocs copied for the input section. */
1504 1.1 skrll bfd_size_type pc_count;
1505 1.1 skrll };
1506 1.1 skrll
1507 1.1 skrll
1508 1.1 skrll /* m32r ELF linker hash entry. */
1509 1.1 skrll
1510 1.1 skrll struct elf_m32r_link_hash_entry
1511 1.1 skrll {
1512 1.1 skrll struct elf_link_hash_entry root;
1513 1.1 skrll
1514 1.1 skrll /* Track dynamic relocs copied for this symbol. */
1515 1.1 skrll struct elf_m32r_dyn_relocs *dyn_relocs;
1516 1.1 skrll };
1517 1.1 skrll
1518 1.1 skrll /* m32r ELF linker hash table. */
1519 1.1 skrll
1520 1.1 skrll struct elf_m32r_link_hash_table
1521 1.1 skrll {
1522 1.1 skrll struct elf_link_hash_table root;
1523 1.1 skrll
1524 1.1 skrll /* Short-cuts to get to dynamic linker sections. */
1525 1.1 skrll asection *sgot;
1526 1.1 skrll asection *sgotplt;
1527 1.1 skrll asection *srelgot;
1528 1.1 skrll asection *splt;
1529 1.1.1.2 christos asection *srelplt;
1530 1.1.1.2 christos asection *sdynbss;
1531 1.1 skrll asection *srelbss;
1532 1.1 skrll
1533 1.1 skrll /* Small local sym cache. */
1534 1.1 skrll struct sym_cache sym_cache;
1535 1.1 skrll };
1536 1.1 skrll
1537 1.1 skrll /* Traverse an m32r ELF linker hash table. */
1538 1.1 skrll
1539 1.1 skrll #define m32r_elf_link_hash_traverse(table, func, info) \
1540 1.1 skrll (elf_link_hash_traverse \
1541 1.1 skrll (&(table)->root, \
1542 1.1 skrll (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func), \
1543 1.1 skrll (info)))
1544 1.1.1.2 christos
1545 1.1.1.2 christos /* Get the m32r ELF linker hash table from a link_info structure. */
1546 1.1 skrll
1547 1.1 skrll #define m32r_elf_hash_table(p) \
1548 1.1 skrll (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1549 1.1 skrll == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1550 1.1 skrll
1551 1.1 skrll /* Create an entry in an m32r ELF linker hash table. */
1552 1.1 skrll
1553 1.1 skrll static struct bfd_hash_entry *
1554 1.1 skrll m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1555 1.1 skrll struct bfd_hash_table *table,
1556 1.1 skrll const char *string)
1557 1.1 skrll {
1558 1.1 skrll struct elf_m32r_link_hash_entry *ret =
1559 1.1 skrll (struct elf_m32r_link_hash_entry *) entry;
1560 1.1 skrll
1561 1.1 skrll /* Allocate the structure if it has not already been allocated by a
1562 1.1 skrll subclass. */
1563 1.1 skrll if (ret == NULL)
1564 1.1 skrll ret = bfd_hash_allocate (table,
1565 1.1 skrll sizeof (struct elf_m32r_link_hash_entry));
1566 1.1 skrll if (ret == NULL)
1567 1.1 skrll return NULL;
1568 1.1 skrll
1569 1.1 skrll /* Call the allocation method of the superclass. */
1570 1.1 skrll ret = ((struct elf_m32r_link_hash_entry *)
1571 1.1 skrll _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1572 1.1 skrll table, string));
1573 1.1 skrll if (ret != NULL)
1574 1.1 skrll {
1575 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1576 1.1 skrll
1577 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) ret;
1578 1.1 skrll eh->dyn_relocs = NULL;
1579 1.1 skrll }
1580 1.1 skrll
1581 1.1 skrll return (struct bfd_hash_entry *) ret;
1582 1.1 skrll }
1583 1.1 skrll
1584 1.1 skrll /* Create an m32r ELF linker hash table. */
1585 1.1 skrll
1586 1.1 skrll static struct bfd_link_hash_table *
1587 1.1 skrll m32r_elf_link_hash_table_create (bfd *abfd)
1588 1.1 skrll {
1589 1.1 skrll struct elf_m32r_link_hash_table *ret;
1590 1.1 skrll bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1591 1.1 skrll
1592 1.1 skrll ret = bfd_malloc (amt);
1593 1.1 skrll if (ret == NULL)
1594 1.1.1.2 christos return NULL;
1595 1.1.1.2 christos
1596 1.1 skrll if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1597 1.1 skrll m32r_elf_link_hash_newfunc,
1598 1.1 skrll sizeof (struct elf_m32r_link_hash_entry),
1599 1.1 skrll M32R_ELF_DATA))
1600 1.1 skrll {
1601 1.1 skrll free (ret);
1602 1.1 skrll return NULL;
1603 1.1 skrll }
1604 1.1 skrll
1605 1.1 skrll ret->sgot = NULL;
1606 1.1 skrll ret->sgotplt = NULL;
1607 1.1 skrll ret->srelgot = NULL;
1608 1.1.1.2 christos ret->splt = NULL;
1609 1.1 skrll ret->srelplt = NULL;
1610 1.1 skrll ret->sdynbss = NULL;
1611 1.1 skrll ret->srelbss = NULL;
1612 1.1 skrll ret->sym_cache.abfd = NULL;
1613 1.1 skrll
1614 1.1 skrll return &ret->root.root;
1615 1.1 skrll }
1616 1.1 skrll
1617 1.1 skrll /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1618 1.1 skrll shortcuts to them in our hash table. */
1619 1.1 skrll
1620 1.1 skrll static bfd_boolean
1621 1.1 skrll create_got_section (bfd *dynobj, struct bfd_link_info *info)
1622 1.1 skrll {
1623 1.1 skrll struct elf_m32r_link_hash_table *htab;
1624 1.1 skrll
1625 1.1.1.2 christos if (! _bfd_elf_create_got_section (dynobj, info))
1626 1.1.1.2 christos return FALSE;
1627 1.1.1.2 christos
1628 1.1 skrll htab = m32r_elf_hash_table (info);
1629 1.1 skrll if (htab == NULL)
1630 1.1.1.2 christos return FALSE;
1631 1.1.1.2 christos
1632 1.1 skrll htab->sgot = bfd_get_section_by_name (dynobj, ".got");
1633 1.1 skrll htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
1634 1.1 skrll htab->srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
1635 1.1 skrll if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1636 1.1 skrll abort ();
1637 1.1 skrll
1638 1.1 skrll return TRUE;
1639 1.1 skrll }
1640 1.1 skrll
1641 1.1 skrll /* Create dynamic sections when linking against a dynamic object. */
1642 1.1 skrll
1643 1.1 skrll static bfd_boolean
1644 1.1 skrll m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1645 1.1 skrll {
1646 1.1 skrll struct elf_m32r_link_hash_table *htab;
1647 1.1 skrll flagword flags, pltflags;
1648 1.1 skrll asection *s;
1649 1.1.1.2 christos const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1650 1.1.1.2 christos int ptralign = 2; /* 32bit */
1651 1.1 skrll
1652 1.1 skrll htab = m32r_elf_hash_table (info);
1653 1.1 skrll if (htab == NULL)
1654 1.1 skrll return FALSE;
1655 1.1 skrll
1656 1.1 skrll /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1657 1.1 skrll .rel[a].bss sections. */
1658 1.1 skrll flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1659 1.1 skrll | SEC_LINKER_CREATED);
1660 1.1 skrll
1661 1.1 skrll pltflags = flags;
1662 1.1 skrll pltflags |= SEC_CODE;
1663 1.1 skrll if (bed->plt_not_loaded)
1664 1.1 skrll pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1665 1.1 skrll if (bed->plt_readonly)
1666 1.1 skrll pltflags |= SEC_READONLY;
1667 1.1 skrll
1668 1.1 skrll s = bfd_make_section_with_flags (abfd, ".plt", pltflags);
1669 1.1 skrll htab->splt = s;
1670 1.1 skrll if (s == NULL
1671 1.1 skrll || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1672 1.1 skrll return FALSE;
1673 1.1 skrll
1674 1.1 skrll if (bed->want_plt_sym)
1675 1.1 skrll {
1676 1.1 skrll /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1677 1.1 skrll .plt section. */
1678 1.1 skrll struct bfd_link_hash_entry *bh = NULL;
1679 1.1 skrll struct elf_link_hash_entry *h;
1680 1.1 skrll
1681 1.1 skrll if (! (_bfd_generic_link_add_one_symbol
1682 1.1 skrll (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1683 1.1 skrll (bfd_vma) 0, NULL, FALSE,
1684 1.1 skrll get_elf_backend_data (abfd)->collect, &bh)))
1685 1.1 skrll return FALSE;
1686 1.1 skrll h = (struct elf_link_hash_entry *) bh;
1687 1.1 skrll h->def_regular = 1;
1688 1.1 skrll h->type = STT_OBJECT;
1689 1.1 skrll htab->root.hplt = h;
1690 1.1 skrll
1691 1.1 skrll if (info->shared
1692 1.1 skrll && ! bfd_elf_link_record_dynamic_symbol (info, h))
1693 1.1 skrll return FALSE;
1694 1.1 skrll }
1695 1.1 skrll
1696 1.1 skrll s = bfd_make_section_with_flags (abfd,
1697 1.1 skrll bed->default_use_rela_p ? ".rela.plt" : ".rel.plt",
1698 1.1 skrll flags | SEC_READONLY);
1699 1.1 skrll htab->srelplt = s;
1700 1.1 skrll if (s == NULL
1701 1.1 skrll || ! bfd_set_section_alignment (abfd, s, ptralign))
1702 1.1 skrll return FALSE;
1703 1.1 skrll
1704 1.1 skrll if (htab->sgot == NULL
1705 1.1 skrll && ! create_got_section (abfd, info))
1706 1.1 skrll return FALSE;
1707 1.1 skrll
1708 1.1 skrll {
1709 1.1 skrll const char *secname;
1710 1.1 skrll char *relname;
1711 1.1 skrll flagword secflags;
1712 1.1 skrll asection *sec;
1713 1.1 skrll
1714 1.1 skrll for (sec = abfd->sections; sec; sec = sec->next)
1715 1.1 skrll {
1716 1.1 skrll secflags = bfd_get_section_flags (abfd, sec);
1717 1.1 skrll if ((secflags & (SEC_DATA | SEC_LINKER_CREATED))
1718 1.1 skrll || ((secflags & SEC_HAS_CONTENTS) != SEC_HAS_CONTENTS))
1719 1.1 skrll continue;
1720 1.1 skrll secname = bfd_get_section_name (abfd, sec);
1721 1.1 skrll relname = bfd_malloc ((bfd_size_type) strlen (secname) + 6);
1722 1.1 skrll strcpy (relname, ".rela");
1723 1.1 skrll strcat (relname, secname);
1724 1.1 skrll if (bfd_get_section_by_name (abfd, secname))
1725 1.1 skrll continue;
1726 1.1 skrll s = bfd_make_section_with_flags (abfd, relname,
1727 1.1 skrll flags | SEC_READONLY);
1728 1.1 skrll if (s == NULL
1729 1.1 skrll || ! bfd_set_section_alignment (abfd, s, ptralign))
1730 1.1 skrll return FALSE;
1731 1.1 skrll }
1732 1.1 skrll }
1733 1.1 skrll
1734 1.1 skrll if (bed->want_dynbss)
1735 1.1 skrll {
1736 1.1 skrll /* The .dynbss section is a place to put symbols which are defined
1737 1.1 skrll by dynamic objects, are referenced by regular objects, and are
1738 1.1 skrll not functions. We must allocate space for them in the process
1739 1.1 skrll image and use a R_*_COPY reloc to tell the dynamic linker to
1740 1.1 skrll initialize them at run time. The linker script puts the .dynbss
1741 1.1 skrll section into the .bss section of the final image. */
1742 1.1 skrll s = bfd_make_section_with_flags (abfd, ".dynbss",
1743 1.1 skrll SEC_ALLOC | SEC_LINKER_CREATED);
1744 1.1 skrll htab->sdynbss = s;
1745 1.1 skrll if (s == NULL)
1746 1.1 skrll return FALSE;
1747 1.1 skrll /* The .rel[a].bss section holds copy relocs. This section is not
1748 1.1 skrll normally needed. We need to create it here, though, so that the
1749 1.1 skrll linker will map it to an output section. We can't just create it
1750 1.1 skrll only if we need it, because we will not know whether we need it
1751 1.1 skrll until we have seen all the input files, and the first time the
1752 1.1 skrll main linker code calls BFD after examining all the input files
1753 1.1 skrll (size_dynamic_sections) the input sections have already been
1754 1.1 skrll mapped to the output sections. If the section turns out not to
1755 1.1 skrll be needed, we can discard it later. We will never need this
1756 1.1 skrll section when generating a shared object, since they do not use
1757 1.1 skrll copy relocs. */
1758 1.1 skrll if (! info->shared)
1759 1.1 skrll {
1760 1.1 skrll s = bfd_make_section_with_flags (abfd,
1761 1.1 skrll (bed->default_use_rela_p
1762 1.1 skrll ? ".rela.bss" : ".rel.bss"),
1763 1.1 skrll flags | SEC_READONLY);
1764 1.1 skrll htab->srelbss = s;
1765 1.1 skrll if (s == NULL
1766 1.1 skrll || ! bfd_set_section_alignment (abfd, s, ptralign))
1767 1.1 skrll return FALSE;
1768 1.1 skrll }
1769 1.1 skrll }
1770 1.1 skrll
1771 1.1 skrll return TRUE;
1772 1.1 skrll }
1773 1.1 skrll
1774 1.1 skrll /* Copy the extra info we tack onto an elf_link_hash_entry. */
1775 1.1 skrll
1776 1.1 skrll static void
1777 1.1 skrll m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1778 1.1 skrll struct elf_link_hash_entry *dir,
1779 1.1 skrll struct elf_link_hash_entry *ind)
1780 1.1 skrll {
1781 1.1 skrll struct elf_m32r_link_hash_entry * edir;
1782 1.1 skrll struct elf_m32r_link_hash_entry * eind;
1783 1.1 skrll
1784 1.1 skrll edir = (struct elf_m32r_link_hash_entry *) dir;
1785 1.1 skrll eind = (struct elf_m32r_link_hash_entry *) ind;
1786 1.1 skrll
1787 1.1 skrll if (eind->dyn_relocs != NULL)
1788 1.1 skrll {
1789 1.1 skrll if (edir->dyn_relocs != NULL)
1790 1.1 skrll {
1791 1.1 skrll struct elf_m32r_dyn_relocs **pp;
1792 1.1 skrll struct elf_m32r_dyn_relocs *p;
1793 1.1 skrll
1794 1.1 skrll /* Add reloc counts against the indirect sym to the direct sym
1795 1.1 skrll list. Merge any entries against the same section. */
1796 1.1 skrll for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1797 1.1 skrll {
1798 1.1 skrll struct elf_m32r_dyn_relocs *q;
1799 1.1 skrll
1800 1.1 skrll for (q = edir->dyn_relocs; q != NULL; q = q->next)
1801 1.1 skrll if (q->sec == p->sec)
1802 1.1 skrll {
1803 1.1 skrll q->pc_count += p->pc_count;
1804 1.1 skrll q->count += p->count;
1805 1.1 skrll *pp = p->next;
1806 1.1 skrll break;
1807 1.1 skrll }
1808 1.1 skrll if (q == NULL)
1809 1.1 skrll pp = &p->next;
1810 1.1 skrll }
1811 1.1 skrll *pp = edir->dyn_relocs;
1812 1.1 skrll }
1813 1.1 skrll
1814 1.1 skrll edir->dyn_relocs = eind->dyn_relocs;
1815 1.1 skrll eind->dyn_relocs = NULL;
1816 1.1 skrll }
1817 1.1 skrll
1818 1.1 skrll _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1819 1.1 skrll }
1820 1.1 skrll
1821 1.1 skrll
1822 1.1 skrll /* Adjust a symbol defined by a dynamic object and referenced by a
1824 1.1 skrll regular object. The current definition is in some section of the
1825 1.1 skrll dynamic object, but we're not including those sections. We have to
1826 1.1 skrll change the definition to something the rest of the link can
1827 1.1 skrll understand. */
1828 1.1 skrll
1829 1.1 skrll static bfd_boolean
1830 1.1 skrll m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1831 1.1 skrll struct elf_link_hash_entry *h)
1832 1.1 skrll {
1833 1.1 skrll struct elf_m32r_link_hash_table *htab;
1834 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1835 1.1 skrll struct elf_m32r_dyn_relocs *p;
1836 1.1 skrll bfd *dynobj;
1837 1.1 skrll asection *s;
1838 1.1 skrll
1839 1.1 skrll #ifdef DEBUG_PIC
1840 1.1 skrll printf ("m32r_elf_adjust_dynamic_symbol()\n");
1841 1.1 skrll #endif
1842 1.1 skrll
1843 1.1 skrll dynobj = elf_hash_table (info)->dynobj;
1844 1.1 skrll
1845 1.1 skrll /* Make sure we know what is going on here. */
1846 1.1 skrll BFD_ASSERT (dynobj != NULL
1847 1.1 skrll && (h->needs_plt
1848 1.1 skrll || h->u.weakdef != NULL
1849 1.1 skrll || (h->def_dynamic
1850 1.1 skrll && h->ref_regular
1851 1.1 skrll && !h->def_regular)));
1852 1.1 skrll
1853 1.1 skrll /* If this is a function, put it in the procedure linkage table. We
1854 1.1 skrll will fill in the contents of the procedure linkage table later,
1855 1.1 skrll when we know the address of the .got section. */
1856 1.1 skrll if (h->type == STT_FUNC
1857 1.1 skrll || h->needs_plt)
1858 1.1 skrll {
1859 1.1 skrll if (! info->shared
1860 1.1 skrll && !h->def_dynamic
1861 1.1 skrll && !h->ref_dynamic
1862 1.1 skrll && h->root.type != bfd_link_hash_undefweak
1863 1.1 skrll && h->root.type != bfd_link_hash_undefined)
1864 1.1 skrll {
1865 1.1 skrll /* This case can occur if we saw a PLT reloc in an input
1866 1.1 skrll file, but the symbol was never referred to by a dynamic
1867 1.1 skrll object. In such a case, we don't actually need to build
1868 1.1 skrll a procedure linkage table, and we can just do a PCREL
1869 1.1 skrll reloc instead. */
1870 1.1 skrll h->plt.offset = (bfd_vma) -1;
1871 1.1 skrll h->needs_plt = 0;
1872 1.1 skrll }
1873 1.1 skrll
1874 1.1 skrll return TRUE;
1875 1.1 skrll }
1876 1.1 skrll else
1877 1.1 skrll h->plt.offset = (bfd_vma) -1;
1878 1.1 skrll
1879 1.1 skrll /* If this is a weak symbol, and there is a real definition, the
1880 1.1 skrll processor independent code will have arranged for us to see the
1881 1.1 skrll real definition first, and we can just use the same value. */
1882 1.1 skrll if (h->u.weakdef != NULL)
1883 1.1 skrll {
1884 1.1 skrll BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1885 1.1 skrll || h->u.weakdef->root.type == bfd_link_hash_defweak);
1886 1.1 skrll h->root.u.def.section = h->u.weakdef->root.u.def.section;
1887 1.1 skrll h->root.u.def.value = h->u.weakdef->root.u.def.value;
1888 1.1 skrll return TRUE;
1889 1.1 skrll }
1890 1.1 skrll
1891 1.1 skrll /* This is a reference to a symbol defined by a dynamic object which
1892 1.1 skrll is not a function. */
1893 1.1 skrll
1894 1.1 skrll /* If we are creating a shared library, we must presume that the
1895 1.1 skrll only references to the symbol are via the global offset table.
1896 1.1 skrll For such cases we need not do anything here; the relocations will
1897 1.1 skrll be handled correctly by relocate_section. */
1898 1.1 skrll if (info->shared)
1899 1.1 skrll return TRUE;
1900 1.1 skrll
1901 1.1 skrll /* If there are no references to this symbol that do not use the
1902 1.1 skrll GOT, we don't need to generate a copy reloc. */
1903 1.1 skrll if (!h->non_got_ref)
1904 1.1 skrll return TRUE;
1905 1.1 skrll
1906 1.1 skrll /* If -z nocopyreloc was given, we won't generate them either. */
1907 1.1 skrll if (info->nocopyreloc)
1908 1.1 skrll {
1909 1.1 skrll h->non_got_ref = 0;
1910 1.1 skrll return TRUE;
1911 1.1 skrll }
1912 1.1 skrll
1913 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
1914 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
1915 1.1 skrll {
1916 1.1 skrll s = p->sec->output_section;
1917 1.1 skrll if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1918 1.1 skrll break;
1919 1.1 skrll }
1920 1.1 skrll
1921 1.1 skrll /* If we didn't find any dynamic relocs in sections which needs the
1922 1.1 skrll copy reloc, then we'll be keeping the dynamic relocs and avoiding
1923 1.1 skrll the copy reloc. */
1924 1.1 skrll if (p == NULL)
1925 1.1 skrll {
1926 1.1 skrll h->non_got_ref = 0;
1927 1.1 skrll return TRUE;
1928 1.1 skrll }
1929 1.1 skrll
1930 1.1 skrll if (h->size == 0)
1931 1.1 skrll {
1932 1.1 skrll (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1933 1.1 skrll h->root.root.string);
1934 1.1 skrll return TRUE;
1935 1.1 skrll }
1936 1.1 skrll
1937 1.1 skrll /* We must allocate the symbol in our .dynbss section, which will
1938 1.1 skrll become part of the .bss section of the executable. There will be
1939 1.1 skrll an entry for this symbol in the .dynsym section. The dynamic
1940 1.1 skrll object will contain position independent code, so all references
1941 1.1 skrll from the dynamic object to this symbol will go through the global
1942 1.1 skrll offset table. The dynamic linker will use the .dynsym entry to
1943 1.1.1.2 christos determine the address it must put in the global offset table, so
1944 1.1.1.2 christos both the dynamic object and the regular object will refer to the
1945 1.1.1.2 christos same memory location for the variable. */
1946 1.1 skrll
1947 1.1 skrll htab = m32r_elf_hash_table (info);
1948 1.1 skrll if (htab == NULL)
1949 1.1 skrll return FALSE;
1950 1.1 skrll
1951 1.1 skrll s = htab->sdynbss;
1952 1.1 skrll BFD_ASSERT (s != NULL);
1953 1.1 skrll
1954 1.1 skrll /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1955 1.1 skrll to copy the initial value out of the dynamic object and into the
1956 1.1 skrll runtime process image. We need to remember the offset into the
1957 1.1 skrll .rela.bss section we are going to use. */
1958 1.1 skrll if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
1959 1.1 skrll {
1960 1.1 skrll asection *srel;
1961 1.1 skrll
1962 1.1 skrll srel = htab->srelbss;
1963 1.1 skrll BFD_ASSERT (srel != NULL);
1964 1.1 skrll srel->size += sizeof (Elf32_External_Rela);
1965 1.1 skrll h->needs_copy = 1;
1966 1.1 skrll }
1967 1.1 skrll
1968 1.1 skrll return _bfd_elf_adjust_dynamic_copy (h, s);
1969 1.1 skrll }
1970 1.1 skrll
1971 1.1 skrll /* Allocate space in .plt, .got and associated reloc sections for
1972 1.1 skrll dynamic relocs. */
1973 1.1 skrll
1974 1.1 skrll static bfd_boolean
1975 1.1 skrll allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1976 1.1 skrll {
1977 1.1 skrll struct bfd_link_info *info;
1978 1.1 skrll struct elf_m32r_link_hash_table *htab;
1979 1.1 skrll struct elf_m32r_link_hash_entry *eh;
1980 1.1 skrll struct elf_m32r_dyn_relocs *p;
1981 1.1 skrll
1982 1.1 skrll if (h->root.type == bfd_link_hash_indirect)
1983 1.1 skrll return TRUE;
1984 1.1 skrll
1985 1.1 skrll if (h->root.type == bfd_link_hash_warning)
1986 1.1 skrll /* When warning symbols are created, they **replace** the "real"
1987 1.1 skrll entry in the hash table, thus we never get to see the real
1988 1.1.1.2 christos symbol in a hash traversal. So look at it now. */
1989 1.1.1.2 christos h = (struct elf_link_hash_entry *) h->root.u.i.link;
1990 1.1 skrll
1991 1.1 skrll info = (struct bfd_link_info *) inf;
1992 1.1 skrll htab = m32r_elf_hash_table (info);
1993 1.1 skrll if (htab == NULL)
1994 1.1 skrll return FALSE;
1995 1.1 skrll
1996 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
1997 1.1 skrll
1998 1.1 skrll if (htab->root.dynamic_sections_created
1999 1.1 skrll && h->plt.refcount > 0)
2000 1.1 skrll {
2001 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
2002 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
2003 1.1 skrll if (h->dynindx == -1
2004 1.1 skrll && !h->forced_local)
2005 1.1 skrll {
2006 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2007 1.1 skrll return FALSE;
2008 1.1 skrll }
2009 1.1 skrll
2010 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
2011 1.1 skrll {
2012 1.1 skrll asection *s = htab->splt;
2013 1.1 skrll
2014 1.1 skrll /* If this is the first .plt entry, make room for the special
2015 1.1 skrll first entry. */
2016 1.1 skrll if (s->size == 0)
2017 1.1 skrll s->size += PLT_ENTRY_SIZE;
2018 1.1 skrll
2019 1.1 skrll h->plt.offset = s->size;
2020 1.1 skrll
2021 1.1 skrll /* If this symbol is not defined in a regular file, and we are
2022 1.1 skrll not generating a shared library, then set the symbol to this
2023 1.1 skrll location in the .plt. This is required to make function
2024 1.1 skrll pointers compare as equal between the normal executable and
2025 1.1 skrll the shared library. */
2026 1.1 skrll if (! info->shared
2027 1.1 skrll && !h->def_regular)
2028 1.1 skrll {
2029 1.1 skrll h->root.u.def.section = s;
2030 1.1 skrll h->root.u.def.value = h->plt.offset;
2031 1.1 skrll }
2032 1.1 skrll
2033 1.1 skrll /* Make room for this entry. */
2034 1.1 skrll s->size += PLT_ENTRY_SIZE;
2035 1.1 skrll
2036 1.1 skrll /* We also need to make an entry in the .got.plt section, which
2037 1.1 skrll will be placed in the .got section by the linker script. */
2038 1.1 skrll htab->sgotplt->size += 4;
2039 1.1 skrll
2040 1.1 skrll /* We also need to make an entry in the .rel.plt section. */
2041 1.1 skrll htab->srelplt->size += sizeof (Elf32_External_Rela);
2042 1.1 skrll }
2043 1.1 skrll else
2044 1.1 skrll {
2045 1.1 skrll h->plt.offset = (bfd_vma) -1;
2046 1.1 skrll h->needs_plt = 0;
2047 1.1 skrll }
2048 1.1 skrll }
2049 1.1 skrll else
2050 1.1 skrll {
2051 1.1 skrll h->plt.offset = (bfd_vma) -1;
2052 1.1 skrll h->needs_plt = 0;
2053 1.1 skrll }
2054 1.1 skrll
2055 1.1 skrll if (h->got.refcount > 0)
2056 1.1 skrll {
2057 1.1 skrll asection *s;
2058 1.1 skrll bfd_boolean dyn;
2059 1.1 skrll
2060 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
2061 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
2062 1.1 skrll if (h->dynindx == -1
2063 1.1 skrll && !h->forced_local)
2064 1.1 skrll {
2065 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2066 1.1 skrll return FALSE;
2067 1.1 skrll }
2068 1.1 skrll
2069 1.1 skrll s = htab->sgot;
2070 1.1 skrll
2071 1.1 skrll h->got.offset = s->size;
2072 1.1 skrll s->size += 4;
2073 1.1 skrll dyn = htab->root.dynamic_sections_created;
2074 1.1 skrll if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
2075 1.1 skrll htab->srelgot->size += sizeof (Elf32_External_Rela);
2076 1.1 skrll }
2077 1.1 skrll else
2078 1.1 skrll h->got.offset = (bfd_vma) -1;
2079 1.1 skrll
2080 1.1 skrll if (eh->dyn_relocs == NULL)
2081 1.1 skrll return TRUE;
2082 1.1 skrll
2083 1.1 skrll /* In the shared -Bsymbolic case, discard space allocated for
2084 1.1 skrll dynamic pc-relative relocs against symbols which turn out to be
2085 1.1 skrll defined in regular objects. For the normal shared case, discard
2086 1.1 skrll space for pc-relative relocs that have become local due to symbol
2087 1.1 skrll visibility changes. */
2088 1.1 skrll
2089 1.1 skrll if (info->shared)
2090 1.1 skrll {
2091 1.1 skrll if (h->def_regular
2092 1.1 skrll && (h->forced_local
2093 1.1 skrll || info->symbolic))
2094 1.1 skrll {
2095 1.1 skrll struct elf_m32r_dyn_relocs **pp;
2096 1.1 skrll
2097 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2098 1.1 skrll {
2099 1.1 skrll p->count -= p->pc_count;
2100 1.1 skrll p->pc_count = 0;
2101 1.1 skrll if (p->count == 0)
2102 1.1 skrll *pp = p->next;
2103 1.1 skrll else
2104 1.1 skrll pp = &p->next;
2105 1.1 skrll }
2106 1.1 skrll }
2107 1.1 skrll
2108 1.1 skrll /* Also discard relocs on undefined weak syms with non-default
2109 1.1 skrll visibility. */
2110 1.1 skrll if (eh->dyn_relocs != NULL
2111 1.1 skrll && h->root.type == bfd_link_hash_undefweak)
2112 1.1 skrll {
2113 1.1 skrll if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2114 1.1 skrll eh->dyn_relocs = NULL;
2115 1.1 skrll
2116 1.1 skrll /* Make sure undefined weak symbols are output as a dynamic
2117 1.1 skrll symbol in PIEs. */
2118 1.1 skrll else if (h->dynindx == -1
2119 1.1 skrll && !h->forced_local)
2120 1.1 skrll {
2121 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2122 1.1 skrll return FALSE;
2123 1.1 skrll }
2124 1.1 skrll }
2125 1.1 skrll }
2126 1.1 skrll else
2127 1.1 skrll {
2128 1.1 skrll /* For the non-shared case, discard space for relocs against
2129 1.1 skrll symbols which turn out to need copy relocs or are not
2130 1.1 skrll dynamic. */
2131 1.1 skrll
2132 1.1 skrll if (!h->non_got_ref
2133 1.1 skrll && ((h->def_dynamic
2134 1.1 skrll && !h->def_regular)
2135 1.1 skrll || (htab->root.dynamic_sections_created
2136 1.1 skrll && (h->root.type == bfd_link_hash_undefweak
2137 1.1 skrll || h->root.type == bfd_link_hash_undefined))))
2138 1.1 skrll {
2139 1.1 skrll /* Make sure this symbol is output as a dynamic symbol.
2140 1.1 skrll Undefined weak syms won't yet be marked as dynamic. */
2141 1.1 skrll if (h->dynindx == -1
2142 1.1 skrll && !h->forced_local)
2143 1.1 skrll {
2144 1.1 skrll if (! bfd_elf_link_record_dynamic_symbol (info, h))
2145 1.1 skrll return FALSE;
2146 1.1 skrll }
2147 1.1 skrll
2148 1.1 skrll /* If that succeeded, we know we'll be keeping all the
2149 1.1 skrll relocs. */
2150 1.1 skrll if (h->dynindx != -1)
2151 1.1 skrll goto keep;
2152 1.1 skrll }
2153 1.1 skrll
2154 1.1 skrll eh->dyn_relocs = NULL;
2155 1.1 skrll
2156 1.1 skrll keep: ;
2157 1.1 skrll }
2158 1.1 skrll
2159 1.1 skrll /* Finally, allocate space. */
2160 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
2161 1.1 skrll {
2162 1.1 skrll asection *sreloc = elf_section_data (p->sec)->sreloc;
2163 1.1 skrll sreloc->size += p->count * sizeof (Elf32_External_Rela);
2164 1.1 skrll }
2165 1.1 skrll
2166 1.1 skrll return TRUE;
2167 1.1 skrll }
2168 1.1 skrll
2169 1.1 skrll /* Find any dynamic relocs that apply to read-only sections. */
2170 1.1 skrll
2171 1.1 skrll static bfd_boolean
2172 1.1 skrll readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2173 1.1 skrll {
2174 1.1 skrll struct elf_m32r_link_hash_entry *eh;
2175 1.1 skrll struct elf_m32r_dyn_relocs *p;
2176 1.1 skrll
2177 1.1 skrll if (h->root.type == bfd_link_hash_warning)
2178 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
2179 1.1 skrll
2180 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
2181 1.1 skrll for (p = eh->dyn_relocs; p != NULL; p = p->next)
2182 1.1 skrll {
2183 1.1 skrll asection *s = p->sec->output_section;
2184 1.1 skrll
2185 1.1 skrll if (s != NULL && (s->flags & SEC_READONLY) != 0)
2186 1.1 skrll {
2187 1.1 skrll struct bfd_link_info *info = (struct bfd_link_info *) inf;
2188 1.1 skrll
2189 1.1 skrll info->flags |= DF_TEXTREL;
2190 1.1 skrll
2191 1.1 skrll /* Not an error, just cut short the traversal. */
2192 1.1 skrll return FALSE;
2193 1.1 skrll }
2194 1.1 skrll }
2195 1.1 skrll return TRUE;
2196 1.1 skrll }
2197 1.1 skrll
2198 1.1 skrll /* Set the sizes of the dynamic sections. */
2199 1.1 skrll
2200 1.1 skrll static bfd_boolean
2201 1.1 skrll m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2202 1.1 skrll struct bfd_link_info *info)
2203 1.1 skrll {
2204 1.1 skrll struct elf_m32r_link_hash_table *htab;
2205 1.1 skrll bfd *dynobj;
2206 1.1 skrll asection *s;
2207 1.1 skrll bfd_boolean relocs;
2208 1.1 skrll bfd *ibfd;
2209 1.1 skrll
2210 1.1.1.2 christos #ifdef DEBUG_PIC
2211 1.1.1.2 christos printf ("m32r_elf_size_dynamic_sections()\n");
2212 1.1.1.2 christos #endif
2213 1.1 skrll
2214 1.1 skrll htab = m32r_elf_hash_table (info);
2215 1.1 skrll if (htab == NULL)
2216 1.1 skrll return FALSE;
2217 1.1 skrll
2218 1.1 skrll dynobj = htab->root.dynobj;
2219 1.1 skrll BFD_ASSERT (dynobj != NULL);
2220 1.1 skrll
2221 1.1 skrll if (htab->root.dynamic_sections_created)
2222 1.1 skrll {
2223 1.1 skrll /* Set the contents of the .interp section to the interpreter. */
2224 1.1 skrll if (info->executable)
2225 1.1 skrll {
2226 1.1 skrll s = bfd_get_section_by_name (dynobj, ".interp");
2227 1.1 skrll BFD_ASSERT (s != NULL);
2228 1.1 skrll s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2229 1.1 skrll s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2230 1.1 skrll }
2231 1.1 skrll }
2232 1.1 skrll
2233 1.1 skrll /* Set up .got offsets for local syms, and space for local dynamic
2234 1.1 skrll relocs. */
2235 1.1 skrll for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
2236 1.1 skrll {
2237 1.1 skrll bfd_signed_vma *local_got;
2238 1.1 skrll bfd_signed_vma *end_local_got;
2239 1.1 skrll bfd_size_type locsymcount;
2240 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
2241 1.1 skrll asection *srel;
2242 1.1 skrll
2243 1.1 skrll if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2244 1.1 skrll continue;
2245 1.1 skrll
2246 1.1 skrll for (s = ibfd->sections; s != NULL; s = s->next)
2247 1.1 skrll {
2248 1.1 skrll struct elf_m32r_dyn_relocs *p;
2249 1.1 skrll
2250 1.1 skrll for (p = ((struct elf_m32r_dyn_relocs *)
2251 1.1 skrll elf_section_data (s)->local_dynrel);
2252 1.1 skrll p != NULL;
2253 1.1 skrll p = p->next)
2254 1.1 skrll {
2255 1.1 skrll if (! bfd_is_abs_section (p->sec)
2256 1.1 skrll && bfd_is_abs_section (p->sec->output_section))
2257 1.1 skrll {
2258 1.1 skrll /* Input section has been discarded, either because
2259 1.1 skrll it is a copy of a linkonce section or due to
2260 1.1 skrll linker script /DISCARD/, so we'll be discarding
2261 1.1 skrll the relocs too. */
2262 1.1 skrll }
2263 1.1 skrll else if (p->count != 0)
2264 1.1 skrll {
2265 1.1 skrll srel = elf_section_data (p->sec)->sreloc;
2266 1.1 skrll srel->size += p->count * sizeof (Elf32_External_Rela);
2267 1.1 skrll if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2268 1.1 skrll info->flags |= DF_TEXTREL;
2269 1.1 skrll }
2270 1.1 skrll }
2271 1.1 skrll }
2272 1.1 skrll
2273 1.1 skrll local_got = elf_local_got_refcounts (ibfd);
2274 1.1 skrll if (!local_got)
2275 1.1 skrll continue;
2276 1.1 skrll
2277 1.1 skrll symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2278 1.1 skrll locsymcount = symtab_hdr->sh_info;
2279 1.1 skrll end_local_got = local_got + locsymcount;
2280 1.1 skrll s = htab->sgot;
2281 1.1 skrll srel = htab->srelgot;
2282 1.1 skrll for (; local_got < end_local_got; ++local_got)
2283 1.1 skrll {
2284 1.1 skrll if (*local_got > 0)
2285 1.1 skrll {
2286 1.1 skrll *local_got = s->size;
2287 1.1 skrll s->size += 4;
2288 1.1 skrll if (info->shared)
2289 1.1 skrll srel->size += sizeof (Elf32_External_Rela);
2290 1.1 skrll }
2291 1.1 skrll else
2292 1.1 skrll *local_got = (bfd_vma) -1;
2293 1.1 skrll }
2294 1.1 skrll }
2295 1.1 skrll
2296 1.1 skrll /* Allocate global sym .plt and .got entries, and space for global
2297 1.1 skrll sym dynamic relocs. */
2298 1.1 skrll elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2299 1.1 skrll
2300 1.1 skrll /* We now have determined the sizes of the various dynamic sections.
2301 1.1 skrll Allocate memory for them. */
2302 1.1 skrll relocs = FALSE;
2303 1.1 skrll for (s = dynobj->sections; s != NULL; s = s->next)
2304 1.1 skrll {
2305 1.1 skrll if ((s->flags & SEC_LINKER_CREATED) == 0)
2306 1.1 skrll continue;
2307 1.1 skrll
2308 1.1 skrll if (s == htab->splt
2309 1.1 skrll || s == htab->sgot
2310 1.1 skrll || s == htab->sgotplt
2311 1.1 skrll || s == htab->sdynbss)
2312 1.1 skrll {
2313 1.1 skrll /* Strip this section if we don't need it; see the
2314 1.1 skrll comment below. */
2315 1.1 skrll }
2316 1.1 skrll else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2317 1.1 skrll {
2318 1.1 skrll if (s->size != 0 && s != htab->srelplt)
2319 1.1 skrll relocs = TRUE;
2320 1.1 skrll
2321 1.1 skrll /* We use the reloc_count field as a counter if we need
2322 1.1 skrll to copy relocs into the output file. */
2323 1.1 skrll s->reloc_count = 0;
2324 1.1 skrll }
2325 1.1 skrll else
2326 1.1 skrll /* It's not one of our sections, so don't allocate space. */
2327 1.1 skrll continue;
2328 1.1 skrll
2329 1.1 skrll if (s->size == 0)
2330 1.1 skrll {
2331 1.1 skrll /* If we don't need this section, strip it from the
2332 1.1 skrll output file. This is mostly to handle .rela.bss and
2333 1.1 skrll .rela.plt. We must create both sections in
2334 1.1 skrll create_dynamic_sections, because they must be created
2335 1.1 skrll before the linker maps input sections to output
2336 1.1 skrll sections. The linker does that before
2337 1.1 skrll adjust_dynamic_symbol is called, and it is that
2338 1.1 skrll function which decides whether anything needs to go
2339 1.1 skrll into these sections. */
2340 1.1 skrll s->flags |= SEC_EXCLUDE;
2341 1.1 skrll continue;
2342 1.1 skrll }
2343 1.1 skrll
2344 1.1 skrll if ((s->flags & SEC_HAS_CONTENTS) == 0)
2345 1.1 skrll continue;
2346 1.1 skrll
2347 1.1 skrll /* Allocate memory for the section contents. We use bfd_zalloc
2348 1.1 skrll here in case unused entries are not reclaimed before the
2349 1.1 skrll section's contents are written out. This should not happen,
2350 1.1 skrll but this way if it does, we get a R_M32R_NONE reloc instead
2351 1.1 skrll of garbage. */
2352 1.1 skrll s->contents = bfd_zalloc (dynobj, s->size);
2353 1.1 skrll if (s->contents == NULL)
2354 1.1 skrll return FALSE;
2355 1.1 skrll }
2356 1.1 skrll
2357 1.1 skrll if (htab->root.dynamic_sections_created)
2358 1.1 skrll {
2359 1.1 skrll /* Add some entries to the .dynamic section. We fill in the
2360 1.1 skrll values later, in m32r_elf_finish_dynamic_sections, but we
2361 1.1 skrll must add the entries now so that we get the correct size for
2362 1.1 skrll the .dynamic section. The DT_DEBUG entry is filled in by the
2363 1.1 skrll dynamic linker and used by the debugger. */
2364 1.1 skrll #define add_dynamic_entry(TAG, VAL) \
2365 1.1 skrll _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2366 1.1 skrll
2367 1.1 skrll if (info->executable)
2368 1.1 skrll {
2369 1.1 skrll if (! add_dynamic_entry (DT_DEBUG, 0))
2370 1.1 skrll return FALSE;
2371 1.1 skrll }
2372 1.1 skrll
2373 1.1 skrll if (htab->splt->size != 0)
2374 1.1 skrll {
2375 1.1 skrll if (! add_dynamic_entry (DT_PLTGOT, 0)
2376 1.1 skrll || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2377 1.1 skrll || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2378 1.1 skrll || ! add_dynamic_entry (DT_JMPREL, 0))
2379 1.1 skrll return FALSE;
2380 1.1 skrll }
2381 1.1 skrll
2382 1.1 skrll if (relocs)
2383 1.1 skrll {
2384 1.1 skrll if (! add_dynamic_entry (DT_RELA, 0)
2385 1.1 skrll || ! add_dynamic_entry (DT_RELASZ, 0)
2386 1.1 skrll || ! add_dynamic_entry (DT_RELAENT,
2387 1.1 skrll sizeof (Elf32_External_Rela)))
2388 1.1 skrll return FALSE;
2389 1.1 skrll
2390 1.1 skrll /* If any dynamic relocs apply to a read-only section,
2391 1.1 skrll then we need a DT_TEXTREL entry. */
2392 1.1 skrll if ((info->flags & DF_TEXTREL) == 0)
2393 1.1 skrll elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2394 1.1 skrll info);
2395 1.1 skrll
2396 1.1 skrll if ((info->flags & DF_TEXTREL) != 0)
2397 1.1 skrll {
2398 1.1 skrll if (! add_dynamic_entry (DT_TEXTREL, 0))
2399 1.1 skrll return FALSE;
2400 1.1 skrll }
2401 1.1 skrll }
2402 1.1 skrll }
2403 1.1 skrll #undef add_dynamic_entry
2404 1.1 skrll
2405 1.1 skrll return TRUE;
2406 1.1 skrll }
2407 1.1 skrll
2408 1.1 skrll /* Relocate an M32R/D ELF section.
2409 1.1 skrll There is some attempt to make this function usable for many architectures,
2410 1.1 skrll both for RELA and REL type relocs, if only to serve as a learning tool.
2411 1.1 skrll
2412 1.1 skrll The RELOCATE_SECTION function is called by the new ELF backend linker
2413 1.1 skrll to handle the relocations for a section.
2414 1.1 skrll
2415 1.1 skrll The relocs are always passed as Rela structures; if the section
2416 1.1 skrll actually uses Rel structures, the r_addend field will always be
2417 1.1 skrll zero.
2418 1.1 skrll
2419 1.1 skrll This function is responsible for adjust the section contents as
2420 1.1 skrll necessary, and (if using Rela relocs and generating a
2421 1.1 skrll relocatable output file) adjusting the reloc addend as
2422 1.1 skrll necessary.
2423 1.1 skrll
2424 1.1 skrll This function does not have to worry about setting the reloc
2425 1.1 skrll address or the reloc symbol index.
2426 1.1 skrll
2427 1.1 skrll LOCAL_SYMS is a pointer to the swapped in local symbols.
2428 1.1 skrll
2429 1.1 skrll LOCAL_SECTIONS is an array giving the section in the input file
2430 1.1 skrll corresponding to the st_shndx field of each local symbol.
2431 1.1 skrll
2432 1.1 skrll The global hash table entry for the global symbols can be found
2433 1.1 skrll via elf_sym_hashes (input_bfd).
2434 1.1 skrll
2435 1.1 skrll When generating relocatable output, this function must handle
2436 1.1 skrll STB_LOCAL/STT_SECTION symbols specially. The output symbol is
2437 1.1 skrll going to be the section symbol corresponding to the output
2438 1.1 skrll section, which means that the addend must be adjusted
2439 1.1 skrll accordingly. */
2440 1.1 skrll
2441 1.1 skrll static bfd_boolean
2442 1.1 skrll m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2443 1.1 skrll struct bfd_link_info *info,
2444 1.1 skrll bfd *input_bfd,
2445 1.1 skrll asection *input_section,
2446 1.1 skrll bfd_byte *contents,
2447 1.1 skrll Elf_Internal_Rela *relocs,
2448 1.1 skrll Elf_Internal_Sym *local_syms,
2449 1.1 skrll asection **local_sections)
2450 1.1 skrll {
2451 1.1 skrll Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2452 1.1 skrll struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2453 1.1 skrll Elf_Internal_Rela *rel, *relend;
2454 1.1 skrll /* Assume success. */
2455 1.1 skrll bfd_boolean ret = TRUE;
2456 1.1 skrll struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2457 1.1.1.2 christos bfd *dynobj;
2458 1.1.1.2 christos bfd_vma *local_got_offsets;
2459 1.1.1.2 christos asection *sgot, *splt, *sreloc;
2460 1.1 skrll bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2461 1.1 skrll
2462 1.1 skrll if (htab == NULL)
2463 1.1 skrll return FALSE;
2464 1.1 skrll
2465 1.1 skrll dynobj = htab->root.dynobj;
2466 1.1 skrll local_got_offsets = elf_local_got_offsets (input_bfd);
2467 1.1 skrll
2468 1.1 skrll sgot = htab->sgot;
2469 1.1 skrll splt = htab->splt;
2470 1.1 skrll sreloc = NULL;
2471 1.1 skrll
2472 1.1 skrll rel = relocs;
2473 1.1 skrll relend = relocs + input_section->reloc_count;
2474 1.1 skrll for (; rel < relend; rel++)
2475 1.1 skrll {
2476 1.1 skrll int r_type;
2477 1.1 skrll reloc_howto_type *howto;
2478 1.1 skrll unsigned long r_symndx;
2479 1.1 skrll struct elf_link_hash_entry *h;
2480 1.1 skrll /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2481 1.1 skrll ensure it's zero (we use REL relocs, not RELA). Therefore this
2482 1.1 skrll should be assigning zero to `addend', but for clarity we use
2483 1.1 skrll `r_addend'. */
2484 1.1 skrll bfd_vma addend = rel->r_addend;
2485 1.1 skrll bfd_vma offset = rel->r_offset;
2486 1.1 skrll bfd_vma relocation;
2487 1.1 skrll Elf_Internal_Sym *sym;
2488 1.1 skrll asection *sec;
2489 1.1 skrll const char *sym_name;
2490 1.1 skrll bfd_reloc_status_type r;
2491 1.1 skrll const char *errmsg = NULL;
2492 1.1 skrll bfd_boolean use_rel = FALSE;
2493 1.1 skrll
2494 1.1 skrll h = NULL;
2495 1.1 skrll r_type = ELF32_R_TYPE (rel->r_info);
2496 1.1 skrll if (r_type < 0 || r_type >= (int) R_M32R_max)
2497 1.1 skrll {
2498 1.1 skrll (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2499 1.1 skrll input_bfd,
2500 1.1 skrll (int) r_type);
2501 1.1 skrll bfd_set_error (bfd_error_bad_value);
2502 1.1 skrll ret = FALSE;
2503 1.1 skrll continue;
2504 1.1 skrll }
2505 1.1 skrll
2506 1.1 skrll if ( r_type == R_M32R_GNU_VTENTRY
2507 1.1 skrll || r_type == R_M32R_GNU_VTINHERIT
2508 1.1 skrll || r_type == R_M32R_NONE
2509 1.1 skrll || r_type == R_M32R_RELA_GNU_VTENTRY
2510 1.1 skrll || r_type == R_M32R_RELA_GNU_VTINHERIT)
2511 1.1 skrll continue;
2512 1.1 skrll
2513 1.1 skrll if (r_type <= R_M32R_GNU_VTENTRY)
2514 1.1 skrll use_rel = TRUE;
2515 1.1 skrll
2516 1.1 skrll howto = m32r_elf_howto_table + r_type;
2517 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
2518 1.1 skrll
2519 1.1 skrll sym = NULL;
2520 1.1 skrll sec = NULL;
2521 1.1 skrll h = NULL;
2522 1.1 skrll
2523 1.1 skrll if (r_symndx < symtab_hdr->sh_info)
2524 1.1 skrll {
2525 1.1 skrll /* Local symbol. */
2526 1.1 skrll sym = local_syms + r_symndx;
2527 1.1 skrll sec = local_sections[r_symndx];
2528 1.1 skrll sym_name = "<local symbol>";
2529 1.1 skrll
2530 1.1 skrll if (!use_rel)
2531 1.1 skrll {
2532 1.1 skrll relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2533 1.1 skrll addend = rel->r_addend;
2534 1.1 skrll }
2535 1.1 skrll else
2536 1.1 skrll {
2537 1.1 skrll relocation = (sec->output_section->vma
2538 1.1 skrll + sec->output_offset
2539 1.1 skrll + sym->st_value);
2540 1.1 skrll }
2541 1.1 skrll }
2542 1.1 skrll else
2543 1.1 skrll {
2544 1.1 skrll /* External symbol. */
2545 1.1 skrll relocation = 0;
2546 1.1 skrll
2547 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2548 1.1 skrll while (h->root.type == bfd_link_hash_indirect
2549 1.1 skrll || h->root.type == bfd_link_hash_warning)
2550 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
2551 1.1 skrll sym_name = h->root.root.string;
2552 1.1 skrll
2553 1.1 skrll if (h->root.type == bfd_link_hash_defined
2554 1.1 skrll || h->root.type == bfd_link_hash_defweak)
2555 1.1 skrll {
2556 1.1 skrll bfd_boolean dyn;
2557 1.1 skrll sec = h->root.u.def.section;
2558 1.1 skrll
2559 1.1 skrll dyn = htab->root.dynamic_sections_created;
2560 1.1 skrll sec = h->root.u.def.section;
2561 1.1 skrll if (r_type == R_M32R_GOTPC24
2562 1.1 skrll || (r_type == R_M32R_GOTPC_HI_ULO
2563 1.1 skrll || r_type == R_M32R_GOTPC_HI_SLO
2564 1.1 skrll || r_type == R_M32R_GOTPC_LO)
2565 1.1 skrll || (r_type == R_M32R_26_PLTREL
2566 1.1 skrll && h->plt.offset != (bfd_vma) -1)
2567 1.1 skrll || ((r_type == R_M32R_GOT24
2568 1.1 skrll || r_type == R_M32R_GOT16_HI_ULO
2569 1.1 skrll || r_type == R_M32R_GOT16_HI_SLO
2570 1.1 skrll || r_type == R_M32R_GOT16_LO)
2571 1.1 skrll && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2572 1.1 skrll info->shared, h)
2573 1.1 skrll && (! info->shared
2574 1.1 skrll || (! info->symbolic && h->dynindx != -1)
2575 1.1 skrll || !h->def_regular))
2576 1.1 skrll || (info->shared
2577 1.1 skrll && ((! info->symbolic && h->dynindx != -1)
2578 1.1 skrll || !h->def_regular)
2579 1.1 skrll && (((r_type == R_M32R_16_RELA
2580 1.1 skrll || r_type == R_M32R_32_RELA
2581 1.1 skrll || r_type == R_M32R_24_RELA
2582 1.1 skrll || r_type == R_M32R_HI16_ULO_RELA
2583 1.1 skrll || r_type == R_M32R_HI16_SLO_RELA
2584 1.1 skrll || r_type == R_M32R_LO16_RELA)
2585 1.1 skrll && !h->forced_local)
2586 1.1 skrll || r_type == R_M32R_REL32
2587 1.1 skrll || r_type == R_M32R_10_PCREL_RELA
2588 1.1 skrll || r_type == R_M32R_18_PCREL_RELA
2589 1.1 skrll || r_type == R_M32R_26_PCREL_RELA)
2590 1.1 skrll && ((input_section->flags & SEC_ALLOC) != 0
2591 1.1 skrll /* DWARF will emit R_M32R_16(24,32) relocations
2592 1.1 skrll in its sections against symbols defined
2593 1.1 skrll externally in shared libraries. We can't do
2594 1.1 skrll anything with them here. */
2595 1.1 skrll || ((input_section->flags & SEC_DEBUGGING) != 0
2596 1.1 skrll && h->def_dynamic))))
2597 1.1 skrll {
2598 1.1 skrll /* In these cases, we don't need the relocation
2599 1.1 skrll value. We check specially because in some
2600 1.1 skrll obscure cases sec->output_section will be NULL. */
2601 1.1 skrll }
2602 1.1 skrll else if (sec->output_section != NULL)
2603 1.1 skrll relocation = (h->root.u.def.value
2604 1.1 skrll + sec->output_section->vma
2605 1.1 skrll + sec->output_offset);
2606 1.1 skrll else if (!info->relocatable)
2607 1.1 skrll {
2608 1.1 skrll (*_bfd_error_handler)
2609 1.1 skrll (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2610 1.1 skrll input_bfd,
2611 1.1 skrll input_section,
2612 1.1 skrll (long) rel->r_offset,
2613 1.1 skrll howto->name,
2614 1.1 skrll h->root.root.string);
2615 1.1 skrll }
2616 1.1 skrll }
2617 1.1 skrll else if (h->root.type == bfd_link_hash_undefweak)
2618 1.1 skrll ;
2619 1.1 skrll else if (info->unresolved_syms_in_objects == RM_IGNORE
2620 1.1 skrll && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2621 1.1 skrll ;
2622 1.1 skrll else if (!info->relocatable)
2623 1.1 skrll {
2624 1.1 skrll if (! ((*info->callbacks->undefined_symbol)
2625 1.1 skrll (info, h->root.root.string, input_bfd,
2626 1.1 skrll input_section, offset,
2627 1.1 skrll (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2628 1.1 skrll || ELF_ST_VISIBILITY (h->other)))))
2629 1.1.1.2 christos return FALSE;
2630 1.1.1.2 christos }
2631 1.1 skrll }
2632 1.1 skrll
2633 1.1 skrll if (sec != NULL && elf_discarded_section (sec))
2634 1.1 skrll RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2635 1.1 skrll rel, relend, howto, contents);
2636 1.1 skrll
2637 1.1 skrll if (info->relocatable && !use_rel)
2638 1.1 skrll {
2639 1.1 skrll /* This is a relocatable link. We don't have to change
2640 1.1 skrll anything, unless the reloc is against a section symbol,
2641 1.1 skrll in which case we have to adjust according to where the
2642 1.1 skrll section symbol winds up in the output section. */
2643 1.1 skrll if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2644 1.1 skrll rel->r_addend += sec->output_offset;
2645 1.1 skrll continue;
2646 1.1 skrll }
2647 1.1 skrll
2648 1.1 skrll if (info->relocatable && use_rel)
2649 1.1 skrll {
2650 1.1 skrll /* This is a relocatable link. We don't have to change
2651 1.1 skrll anything, unless the reloc is against a section symbol,
2652 1.1 skrll in which case we have to adjust according to where the
2653 1.1 skrll section symbol winds up in the output section. */
2654 1.1 skrll if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2655 1.1 skrll continue;
2656 1.1 skrll
2657 1.1 skrll addend += sec->output_offset;
2658 1.1 skrll
2659 1.1 skrll /* If partial_inplace, we need to store any additional addend
2660 1.1 skrll back in the section. */
2661 1.1 skrll if (! howto->partial_inplace)
2662 1.1 skrll continue;
2663 1.1 skrll /* ??? Here is a nice place to call a special_function
2664 1.1 skrll like handler. */
2665 1.1 skrll if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2666 1.1 skrll r = _bfd_relocate_contents (howto, input_bfd,
2667 1.1 skrll addend, contents + offset);
2668 1.1 skrll else
2669 1.1 skrll {
2670 1.1 skrll Elf_Internal_Rela *lorel;
2671 1.1 skrll
2672 1.1 skrll /* We allow an arbitrary number of HI16 relocs before the
2673 1.1 skrll LO16 reloc. This permits gcc to emit the HI and LO relocs
2674 1.1 skrll itself. */
2675 1.1 skrll for (lorel = rel + 1;
2676 1.1 skrll (lorel < relend
2677 1.1 skrll && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2678 1.1 skrll || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2679 1.1 skrll lorel++)
2680 1.1 skrll continue;
2681 1.1 skrll if (lorel < relend
2682 1.1 skrll && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2683 1.1 skrll {
2684 1.1 skrll m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2685 1.1 skrll contents, addend);
2686 1.1 skrll r = bfd_reloc_ok;
2687 1.1 skrll }
2688 1.1 skrll else
2689 1.1 skrll r = _bfd_relocate_contents (howto, input_bfd,
2690 1.1 skrll addend, contents + offset);
2691 1.1 skrll }
2692 1.1 skrll }
2693 1.1 skrll else
2694 1.1 skrll {
2695 1.1 skrll /* Sanity check the address. */
2696 1.1 skrll if (offset > high_address)
2697 1.1 skrll {
2698 1.1 skrll r = bfd_reloc_outofrange;
2699 1.1 skrll goto check_reloc;
2700 1.1 skrll }
2701 1.1 skrll
2702 1.1 skrll switch ((int) r_type)
2703 1.1 skrll {
2704 1.1 skrll case R_M32R_GOTOFF:
2705 1.1 skrll /* Relocation is relative to the start of the global offset
2706 1.1 skrll table (for ld24 rx, #uimm24). eg access at label+addend
2707 1.1 skrll
2708 1.1 skrll ld24 rx. #label@GOTOFF + addend
2709 1.1 skrll sub rx, r12. */
2710 1.1 skrll
2711 1.1 skrll BFD_ASSERT (sgot != NULL);
2712 1.1 skrll
2713 1.1 skrll relocation = -(relocation - sgot->output_section->vma);
2714 1.1 skrll rel->r_addend = -rel->r_addend;
2715 1.1 skrll break;
2716 1.1 skrll
2717 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
2718 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
2719 1.1 skrll case R_M32R_GOTOFF_LO:
2720 1.1 skrll BFD_ASSERT (sgot != NULL);
2721 1.1 skrll
2722 1.1 skrll relocation -= sgot->output_section->vma;
2723 1.1 skrll
2724 1.1 skrll if ((r_type == R_M32R_GOTOFF_HI_SLO)
2725 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2726 1.1 skrll rel->r_addend += 0x10000;
2727 1.1 skrll break;
2728 1.1 skrll
2729 1.1 skrll case R_M32R_GOTPC24:
2730 1.1 skrll /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2731 1.1 skrll ld24 rx,#_GLOBAL_OFFSET_TABLE_
2732 1.1 skrll */
2733 1.1 skrll relocation = sgot->output_section->vma;
2734 1.1 skrll break;
2735 1.1 skrll
2736 1.1 skrll case R_M32R_GOTPC_HI_ULO:
2737 1.1 skrll case R_M32R_GOTPC_HI_SLO:
2738 1.1 skrll case R_M32R_GOTPC_LO:
2739 1.1 skrll {
2740 1.1 skrll /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2741 1.1 skrll bl .+4
2742 1.1 skrll seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2743 1.1 skrll or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2744 1.1 skrll or
2745 1.1 skrll bl .+4
2746 1.1 skrll seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2747 1.1 skrll add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2748 1.1 skrll */
2749 1.1 skrll relocation = sgot->output_section->vma;
2750 1.1 skrll relocation -= (input_section->output_section->vma
2751 1.1 skrll + input_section->output_offset
2752 1.1 skrll + rel->r_offset);
2753 1.1 skrll if ((r_type == R_M32R_GOTPC_HI_SLO)
2754 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2755 1.1 skrll rel->r_addend += 0x10000;
2756 1.1 skrll
2757 1.1 skrll break;
2758 1.1 skrll }
2759 1.1 skrll case R_M32R_GOT16_HI_ULO:
2760 1.1 skrll case R_M32R_GOT16_HI_SLO:
2761 1.1 skrll case R_M32R_GOT16_LO:
2762 1.1 skrll /* Fall through. */
2763 1.1 skrll case R_M32R_GOT24:
2764 1.1 skrll /* Relocation is to the entry for this symbol in the global
2765 1.1 skrll offset table. */
2766 1.1 skrll BFD_ASSERT (sgot != NULL);
2767 1.1 skrll
2768 1.1 skrll if (h != NULL)
2769 1.1 skrll {
2770 1.1 skrll bfd_boolean dyn;
2771 1.1 skrll bfd_vma off;
2772 1.1 skrll
2773 1.1 skrll off = h->got.offset;
2774 1.1 skrll BFD_ASSERT (off != (bfd_vma) -1);
2775 1.1 skrll
2776 1.1 skrll dyn = htab->root.dynamic_sections_created;
2777 1.1 skrll if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
2778 1.1 skrll || (info->shared
2779 1.1 skrll && (info->symbolic
2780 1.1 skrll || h->dynindx == -1
2781 1.1 skrll || h->forced_local)
2782 1.1 skrll && h->def_regular))
2783 1.1 skrll {
2784 1.1 skrll /* This is actually a static link, or it is a
2785 1.1 skrll -Bsymbolic link and the symbol is defined
2786 1.1 skrll locally, or the symbol was forced to be local
2787 1.1 skrll because of a version file. We must initialize
2788 1.1 skrll this entry in the global offset table. Since the
2789 1.1 skrll offset must always be a multiple of 4, we use the
2790 1.1 skrll least significant bit to record whether we have
2791 1.1 skrll initialized it already.
2792 1.1 skrll
2793 1.1 skrll When doing a dynamic link, we create a .rela.got
2794 1.1 skrll relocation entry to initialize the value. This
2795 1.1 skrll is done in the finish_dynamic_symbol routine. */
2796 1.1 skrll if ((off & 1) != 0)
2797 1.1 skrll off &= ~1;
2798 1.1 skrll else
2799 1.1 skrll {
2800 1.1 skrll bfd_put_32 (output_bfd, relocation,
2801 1.1 skrll sgot->contents + off);
2802 1.1 skrll h->got.offset |= 1;
2803 1.1 skrll }
2804 1.1 skrll }
2805 1.1 skrll
2806 1.1 skrll relocation = sgot->output_offset + off;
2807 1.1 skrll }
2808 1.1 skrll else
2809 1.1 skrll {
2810 1.1 skrll bfd_vma off;
2811 1.1 skrll bfd_byte *loc;
2812 1.1 skrll
2813 1.1 skrll BFD_ASSERT (local_got_offsets != NULL
2814 1.1 skrll && local_got_offsets[r_symndx] != (bfd_vma) -1);
2815 1.1 skrll
2816 1.1 skrll off = local_got_offsets[r_symndx];
2817 1.1 skrll
2818 1.1 skrll /* The offset must always be a multiple of 4. We use
2819 1.1 skrll the least significant bit to record whether we have
2820 1.1 skrll already processed this entry. */
2821 1.1 skrll if ((off & 1) != 0)
2822 1.1 skrll off &= ~1;
2823 1.1 skrll else
2824 1.1 skrll {
2825 1.1 skrll bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2826 1.1 skrll
2827 1.1 skrll if (info->shared)
2828 1.1 skrll {
2829 1.1 skrll asection *srelgot;
2830 1.1 skrll Elf_Internal_Rela outrel;
2831 1.1 skrll
2832 1.1 skrll /* We need to generate a R_M32R_RELATIVE reloc
2833 1.1 skrll for the dynamic linker. */
2834 1.1 skrll srelgot = bfd_get_section_by_name (dynobj, ".rela.got");
2835 1.1 skrll BFD_ASSERT (srelgot != NULL);
2836 1.1 skrll
2837 1.1 skrll outrel.r_offset = (sgot->output_section->vma
2838 1.1 skrll + sgot->output_offset
2839 1.1 skrll + off);
2840 1.1 skrll outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2841 1.1 skrll outrel.r_addend = relocation;
2842 1.1 skrll loc = srelgot->contents;
2843 1.1 skrll loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2844 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2845 1.1 skrll ++srelgot->reloc_count;
2846 1.1 skrll }
2847 1.1 skrll
2848 1.1 skrll local_got_offsets[r_symndx] |= 1;
2849 1.1 skrll }
2850 1.1 skrll
2851 1.1 skrll relocation = sgot->output_offset + off;
2852 1.1 skrll }
2853 1.1 skrll if ((r_type == R_M32R_GOT16_HI_SLO)
2854 1.1 skrll && ((relocation + rel->r_addend) & 0x8000))
2855 1.1 skrll rel->r_addend += 0x10000;
2856 1.1 skrll
2857 1.1 skrll break;
2858 1.1 skrll
2859 1.1 skrll case R_M32R_26_PLTREL:
2860 1.1 skrll /* Relocation is to the entry for this symbol in the
2861 1.1 skrll procedure linkage table. */
2862 1.1 skrll
2863 1.1 skrll /* The native assembler will generate a 26_PLTREL reloc
2864 1.1 skrll for a local symbol if you assemble a call from one
2865 1.1 skrll section to another when using -K pic. */
2866 1.1 skrll if (h == NULL)
2867 1.1 skrll break;
2868 1.1 skrll
2869 1.1 skrll if (h->forced_local)
2870 1.1 skrll break;
2871 1.1 skrll
2872 1.1 skrll if (h->plt.offset == (bfd_vma) -1)
2873 1.1 skrll /* We didn't make a PLT entry for this symbol. This
2874 1.1 skrll happens when statically linking PIC code, or when
2875 1.1 skrll using -Bsymbolic. */
2876 1.1 skrll break;
2877 1.1 skrll
2878 1.1 skrll relocation = (splt->output_section->vma
2879 1.1 skrll + splt->output_offset
2880 1.1 skrll + h->plt.offset);
2881 1.1 skrll break;
2882 1.1 skrll
2883 1.1 skrll case R_M32R_HI16_SLO_RELA:
2884 1.1 skrll if ((relocation + rel->r_addend) & 0x8000)
2885 1.1 skrll rel->r_addend += 0x10000;
2886 1.1 skrll /* Fall through. */
2887 1.1 skrll
2888 1.1 skrll case R_M32R_16_RELA:
2889 1.1 skrll case R_M32R_24_RELA:
2890 1.1 skrll case R_M32R_32_RELA:
2891 1.1 skrll case R_M32R_REL32:
2892 1.1 skrll case R_M32R_10_PCREL_RELA:
2893 1.1.1.2 christos case R_M32R_18_PCREL_RELA:
2894 1.1 skrll case R_M32R_26_PCREL_RELA:
2895 1.1 skrll case R_M32R_HI16_ULO_RELA:
2896 1.1 skrll case R_M32R_LO16_RELA:
2897 1.1 skrll if (info->shared
2898 1.1 skrll && r_symndx != STN_UNDEF
2899 1.1 skrll && (input_section->flags & SEC_ALLOC) != 0
2900 1.1 skrll && (( r_type != R_M32R_10_PCREL_RELA
2901 1.1 skrll && r_type != R_M32R_18_PCREL_RELA
2902 1.1 skrll && r_type != R_M32R_26_PCREL_RELA
2903 1.1 skrll && r_type != R_M32R_REL32)
2904 1.1 skrll || (h != NULL
2905 1.1 skrll && h->dynindx != -1
2906 1.1 skrll && (! info->symbolic
2907 1.1 skrll || !h->def_regular))))
2908 1.1 skrll {
2909 1.1 skrll Elf_Internal_Rela outrel;
2910 1.1 skrll bfd_boolean skip, relocate;
2911 1.1 skrll bfd_byte *loc;
2912 1.1 skrll
2913 1.1.1.2 christos /* When generating a shared object, these relocations
2914 1.1.1.2 christos are copied into the output file to be resolved at run
2915 1.1.1.2 christos time. */
2916 1.1.1.2 christos if (sreloc == NULL)
2917 1.1 skrll {
2918 1.1 skrll sreloc = _bfd_elf_get_dynamic_reloc_section
2919 1.1 skrll (input_bfd, input_section, /*rela?*/ TRUE);
2920 1.1 skrll if (sreloc == NULL)
2921 1.1 skrll return FALSE;
2922 1.1 skrll }
2923 1.1 skrll
2924 1.1 skrll skip = FALSE;
2925 1.1 skrll relocate = FALSE;
2926 1.1 skrll
2927 1.1 skrll outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2928 1.1 skrll info,
2929 1.1 skrll input_section,
2930 1.1 skrll rel->r_offset);
2931 1.1 skrll if (outrel.r_offset == (bfd_vma) -1)
2932 1.1 skrll skip = TRUE;
2933 1.1 skrll else if (outrel.r_offset == (bfd_vma) -2)
2934 1.1 skrll skip = relocate = TRUE;
2935 1.1 skrll outrel.r_offset += (input_section->output_section->vma
2936 1.1 skrll + input_section->output_offset);
2937 1.1 skrll
2938 1.1 skrll if (skip)
2939 1.1 skrll memset (&outrel, 0, sizeof outrel);
2940 1.1 skrll else if ( r_type == R_M32R_10_PCREL_RELA
2941 1.1 skrll || r_type == R_M32R_18_PCREL_RELA
2942 1.1 skrll || r_type == R_M32R_26_PCREL_RELA
2943 1.1 skrll || r_type == R_M32R_REL32)
2944 1.1 skrll {
2945 1.1 skrll BFD_ASSERT (h != NULL && h->dynindx != -1);
2946 1.1 skrll outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2947 1.1 skrll outrel.r_addend = rel->r_addend;
2948 1.1 skrll }
2949 1.1 skrll else
2950 1.1 skrll {
2951 1.1 skrll /* h->dynindx may be -1 if this symbol was marked to
2952 1.1 skrll become local. */
2953 1.1 skrll if (h == NULL
2954 1.1 skrll || ((info->symbolic || h->dynindx == -1)
2955 1.1 skrll && h->def_regular))
2956 1.1 skrll {
2957 1.1 skrll relocate = TRUE;
2958 1.1 skrll outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2959 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
2960 1.1 skrll }
2961 1.1 skrll else
2962 1.1 skrll {
2963 1.1 skrll BFD_ASSERT (h->dynindx != -1);
2964 1.1 skrll outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2965 1.1 skrll outrel.r_addend = relocation + rel->r_addend;
2966 1.1 skrll }
2967 1.1 skrll }
2968 1.1 skrll
2969 1.1 skrll loc = sreloc->contents;
2970 1.1 skrll loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2971 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2972 1.1 skrll ++sreloc->reloc_count;
2973 1.1 skrll
2974 1.1 skrll /* If this reloc is against an external symbol, we do
2975 1.1 skrll not want to fiddle with the addend. Otherwise, we
2976 1.1 skrll need to include the symbol value so that it becomes
2977 1.1 skrll an addend for the dynamic reloc. */
2978 1.1 skrll if (! relocate)
2979 1.1 skrll continue;
2980 1.1 skrll break;
2981 1.1 skrll }
2982 1.1 skrll else if (r_type != R_M32R_10_PCREL_RELA)
2983 1.1 skrll break;
2984 1.1 skrll /* Fall through. */
2985 1.1 skrll
2986 1.1 skrll case (int) R_M32R_10_PCREL :
2987 1.1 skrll r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2988 1.1 skrll contents, offset,
2989 1.1 skrll sec, relocation, addend);
2990 1.1 skrll goto check_reloc;
2991 1.1 skrll
2992 1.1 skrll case (int) R_M32R_HI16_SLO :
2993 1.1 skrll case (int) R_M32R_HI16_ULO :
2994 1.1 skrll {
2995 1.1 skrll Elf_Internal_Rela *lorel;
2996 1.1 skrll
2997 1.1 skrll /* We allow an arbitrary number of HI16 relocs before the
2998 1.1 skrll LO16 reloc. This permits gcc to emit the HI and LO relocs
2999 1.1 skrll itself. */
3000 1.1 skrll for (lorel = rel + 1;
3001 1.1 skrll (lorel < relend
3002 1.1 skrll && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
3003 1.1 skrll || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
3004 1.1 skrll lorel++)
3005 1.1 skrll continue;
3006 1.1 skrll if (lorel < relend
3007 1.1 skrll && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
3008 1.1 skrll {
3009 1.1 skrll m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
3010 1.1 skrll contents, relocation + addend);
3011 1.1 skrll r = bfd_reloc_ok;
3012 1.1 skrll }
3013 1.1 skrll else
3014 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3015 1.1 skrll contents, offset,
3016 1.1 skrll relocation, addend);
3017 1.1 skrll }
3018 1.1 skrll
3019 1.1 skrll goto check_reloc;
3020 1.1 skrll
3021 1.1 skrll case (int) R_M32R_SDA16_RELA:
3022 1.1 skrll case (int) R_M32R_SDA16 :
3023 1.1 skrll {
3024 1.1 skrll const char *name;
3025 1.1 skrll
3026 1.1 skrll BFD_ASSERT (sec != NULL);
3027 1.1 skrll name = bfd_get_section_name (abfd, sec);
3028 1.1 skrll
3029 1.1 skrll if ( strcmp (name, ".sdata") == 0
3030 1.1 skrll || strcmp (name, ".sbss") == 0
3031 1.1 skrll || strcmp (name, ".scommon") == 0)
3032 1.1 skrll {
3033 1.1 skrll bfd_vma sda_base;
3034 1.1 skrll bfd *out_bfd = sec->output_section->owner;
3035 1.1 skrll
3036 1.1 skrll r = m32r_elf_final_sda_base (out_bfd, info,
3037 1.1 skrll &errmsg,
3038 1.1 skrll &sda_base);
3039 1.1 skrll if (r != bfd_reloc_ok)
3040 1.1 skrll {
3041 1.1 skrll ret = FALSE;
3042 1.1 skrll goto check_reloc;
3043 1.1 skrll }
3044 1.1 skrll
3045 1.1 skrll /* At this point `relocation' contains the object's
3046 1.1 skrll address. */
3047 1.1 skrll relocation -= sda_base;
3048 1.1 skrll /* Now it contains the offset from _SDA_BASE_. */
3049 1.1 skrll }
3050 1.1 skrll else
3051 1.1 skrll {
3052 1.1 skrll (*_bfd_error_handler)
3053 1.1 skrll (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3054 1.1 skrll input_bfd,
3055 1.1 skrll sec,
3056 1.1 skrll sym_name,
3057 1.1 skrll m32r_elf_howto_table[(int) r_type].name);
3058 1.1 skrll /*bfd_set_error (bfd_error_bad_value); ??? why? */
3059 1.1 skrll ret = FALSE;
3060 1.1 skrll continue;
3061 1.1 skrll }
3062 1.1 skrll }
3063 1.1 skrll /* Fall through. */
3064 1.1 skrll
3065 1.1 skrll default : /* OLD_M32R_RELOC */
3066 1.1 skrll
3067 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3068 1.1 skrll contents, offset,
3069 1.1 skrll relocation, addend);
3070 1.1 skrll goto check_reloc;
3071 1.1 skrll }
3072 1.1 skrll
3073 1.1 skrll r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3074 1.1 skrll contents, rel->r_offset,
3075 1.1 skrll relocation, rel->r_addend);
3076 1.1 skrll
3077 1.1 skrll }
3078 1.1 skrll
3079 1.1 skrll check_reloc:
3080 1.1 skrll
3081 1.1 skrll if (r != bfd_reloc_ok)
3082 1.1 skrll {
3083 1.1 skrll /* FIXME: This should be generic enough to go in a utility. */
3084 1.1 skrll const char *name;
3085 1.1 skrll
3086 1.1 skrll if (h != NULL)
3087 1.1 skrll name = h->root.root.string;
3088 1.1 skrll else
3089 1.1 skrll {
3090 1.1 skrll name = (bfd_elf_string_from_elf_section
3091 1.1 skrll (input_bfd, symtab_hdr->sh_link, sym->st_name));
3092 1.1 skrll if (name == NULL || *name == '\0')
3093 1.1 skrll name = bfd_section_name (input_bfd, sec);
3094 1.1 skrll }
3095 1.1 skrll
3096 1.1 skrll if (errmsg != NULL)
3097 1.1 skrll goto common_error;
3098 1.1 skrll
3099 1.1 skrll switch (r)
3100 1.1 skrll {
3101 1.1 skrll case bfd_reloc_overflow:
3102 1.1 skrll if (! ((*info->callbacks->reloc_overflow)
3103 1.1 skrll (info, (h ? &h->root : NULL), name, howto->name,
3104 1.1 skrll (bfd_vma) 0, input_bfd, input_section, offset)))
3105 1.1 skrll return FALSE;
3106 1.1 skrll break;
3107 1.1 skrll
3108 1.1 skrll case bfd_reloc_undefined:
3109 1.1 skrll if (! ((*info->callbacks->undefined_symbol)
3110 1.1 skrll (info, name, input_bfd, input_section,
3111 1.1 skrll offset, TRUE)))
3112 1.1 skrll return FALSE;
3113 1.1 skrll break;
3114 1.1 skrll
3115 1.1 skrll case bfd_reloc_outofrange:
3116 1.1 skrll errmsg = _("internal error: out of range error");
3117 1.1 skrll goto common_error;
3118 1.1 skrll
3119 1.1 skrll case bfd_reloc_notsupported:
3120 1.1 skrll errmsg = _("internal error: unsupported relocation error");
3121 1.1 skrll goto common_error;
3122 1.1 skrll
3123 1.1 skrll case bfd_reloc_dangerous:
3124 1.1 skrll errmsg = _("internal error: dangerous error");
3125 1.1 skrll goto common_error;
3126 1.1 skrll
3127 1.1 skrll default:
3128 1.1 skrll errmsg = _("internal error: unknown error");
3129 1.1 skrll /* fall through */
3130 1.1 skrll
3131 1.1 skrll common_error:
3132 1.1 skrll if (!((*info->callbacks->warning)
3133 1.1 skrll (info, errmsg, name, input_bfd, input_section,
3134 1.1 skrll offset)))
3135 1.1 skrll return FALSE;
3136 1.1 skrll break;
3137 1.1 skrll }
3138 1.1 skrll }
3139 1.1 skrll }
3140 1.1 skrll
3141 1.1 skrll return ret;
3142 1.1 skrll }
3143 1.1 skrll
3144 1.1 skrll /* Finish up dynamic symbol handling. We set the contents of various
3145 1.1 skrll dynamic sections here. */
3146 1.1 skrll
3147 1.1 skrll static bfd_boolean
3148 1.1 skrll m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3149 1.1 skrll struct bfd_link_info *info,
3150 1.1 skrll struct elf_link_hash_entry *h,
3151 1.1 skrll Elf_Internal_Sym *sym)
3152 1.1 skrll {
3153 1.1 skrll struct elf_m32r_link_hash_table *htab;
3154 1.1 skrll bfd_byte *loc;
3155 1.1 skrll
3156 1.1.1.2 christos #ifdef DEBUG_PIC
3157 1.1.1.2 christos printf ("m32r_elf_finish_dynamic_symbol()\n");
3158 1.1 skrll #endif
3159 1.1 skrll
3160 1.1 skrll htab = m32r_elf_hash_table (info);
3161 1.1 skrll if (htab == NULL)
3162 1.1 skrll return FALSE;
3163 1.1 skrll
3164 1.1 skrll if (h->plt.offset != (bfd_vma) -1)
3165 1.1 skrll {
3166 1.1 skrll asection *splt;
3167 1.1 skrll asection *sgot;
3168 1.1 skrll asection *srela;
3169 1.1 skrll
3170 1.1 skrll bfd_vma plt_index;
3171 1.1 skrll bfd_vma got_offset;
3172 1.1 skrll Elf_Internal_Rela rela;
3173 1.1 skrll
3174 1.1 skrll /* This symbol has an entry in the procedure linkage table. Set
3175 1.1 skrll it up. */
3176 1.1 skrll
3177 1.1 skrll BFD_ASSERT (h->dynindx != -1);
3178 1.1 skrll
3179 1.1 skrll splt = htab->splt;
3180 1.1 skrll sgot = htab->sgotplt;
3181 1.1 skrll srela = htab->srelplt;
3182 1.1 skrll BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3183 1.1 skrll
3184 1.1 skrll /* Get the index in the procedure linkage table which
3185 1.1 skrll corresponds to this symbol. This is the index of this symbol
3186 1.1 skrll in all the symbols for which we are making plt entries. The
3187 1.1 skrll first entry in the procedure linkage table is reserved. */
3188 1.1 skrll plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3189 1.1 skrll
3190 1.1 skrll /* Get the offset into the .got table of the entry that
3191 1.1 skrll corresponds to this function. Each .got entry is 4 bytes.
3192 1.1 skrll The first three are reserved. */
3193 1.1 skrll got_offset = (plt_index + 3) * 4;
3194 1.1 skrll
3195 1.1 skrll /* Fill in the entry in the procedure linkage table. */
3196 1.1 skrll if (! info->shared)
3197 1.1 skrll {
3198 1.1 skrll bfd_put_32 (output_bfd,
3199 1.1 skrll (PLT_ENTRY_WORD0b
3200 1.1 skrll + (((sgot->output_section->vma
3201 1.1 skrll + sgot->output_offset
3202 1.1 skrll + got_offset) >> 16) & 0xffff)),
3203 1.1 skrll splt->contents + h->plt.offset);
3204 1.1 skrll bfd_put_32 (output_bfd,
3205 1.1 skrll (PLT_ENTRY_WORD1b
3206 1.1 skrll + ((sgot->output_section->vma
3207 1.1 skrll + sgot->output_offset
3208 1.1 skrll + got_offset) & 0xffff)),
3209 1.1 skrll splt->contents + h->plt.offset + 4);
3210 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3211 1.1 skrll splt->contents + h->plt.offset + 8);
3212 1.1 skrll bfd_put_32 (output_bfd,
3213 1.1 skrll (PLT_ENTRY_WORD3
3214 1.1 skrll + plt_index * sizeof (Elf32_External_Rela)),
3215 1.1 skrll splt->contents + h->plt.offset + 12);
3216 1.1 skrll bfd_put_32 (output_bfd,
3217 1.1 skrll (PLT_ENTRY_WORD4
3218 1.1 skrll + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3219 1.1 skrll splt->contents + h->plt.offset + 16);
3220 1.1 skrll }
3221 1.1 skrll else
3222 1.1 skrll {
3223 1.1 skrll bfd_put_32 (output_bfd,
3224 1.1 skrll PLT_ENTRY_WORD0 + got_offset,
3225 1.1 skrll splt->contents + h->plt.offset);
3226 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3227 1.1 skrll splt->contents + h->plt.offset + 4);
3228 1.1 skrll bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3229 1.1 skrll splt->contents + h->plt.offset + 8);
3230 1.1 skrll bfd_put_32 (output_bfd,
3231 1.1 skrll (PLT_ENTRY_WORD3
3232 1.1 skrll + plt_index * sizeof (Elf32_External_Rela)),
3233 1.1 skrll splt->contents + h->plt.offset + 12);
3234 1.1 skrll bfd_put_32 (output_bfd,
3235 1.1 skrll (PLT_ENTRY_WORD4
3236 1.1 skrll + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3237 1.1 skrll splt->contents + h->plt.offset + 16);
3238 1.1 skrll }
3239 1.1 skrll
3240 1.1 skrll /* Fill in the entry in the global offset table. */
3241 1.1 skrll bfd_put_32 (output_bfd,
3242 1.1 skrll (splt->output_section->vma
3243 1.1 skrll + splt->output_offset
3244 1.1 skrll + h->plt.offset
3245 1.1 skrll + 12), /* same offset */
3246 1.1 skrll sgot->contents + got_offset);
3247 1.1 skrll
3248 1.1 skrll /* Fill in the entry in the .rela.plt section. */
3249 1.1 skrll rela.r_offset = (sgot->output_section->vma
3250 1.1 skrll + sgot->output_offset
3251 1.1 skrll + got_offset);
3252 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3253 1.1 skrll rela.r_addend = 0;
3254 1.1 skrll loc = srela->contents;
3255 1.1 skrll loc += plt_index * sizeof (Elf32_External_Rela);
3256 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3257 1.1 skrll
3258 1.1 skrll if (!h->def_regular)
3259 1.1 skrll {
3260 1.1 skrll /* Mark the symbol as undefined, rather than as defined in
3261 1.1 skrll the .plt section. Leave the value alone. */
3262 1.1 skrll sym->st_shndx = SHN_UNDEF;
3263 1.1 skrll }
3264 1.1 skrll }
3265 1.1 skrll
3266 1.1 skrll if (h->got.offset != (bfd_vma) -1)
3267 1.1 skrll {
3268 1.1 skrll asection *sgot;
3269 1.1 skrll asection *srela;
3270 1.1 skrll Elf_Internal_Rela rela;
3271 1.1 skrll
3272 1.1 skrll /* This symbol has an entry in the global offset table. Set it
3273 1.1 skrll up. */
3274 1.1 skrll
3275 1.1 skrll sgot = htab->sgot;
3276 1.1 skrll srela = htab->srelgot;
3277 1.1 skrll BFD_ASSERT (sgot != NULL && srela != NULL);
3278 1.1 skrll
3279 1.1 skrll rela.r_offset = (sgot->output_section->vma
3280 1.1 skrll + sgot->output_offset
3281 1.1 skrll + (h->got.offset &~ 1));
3282 1.1 skrll
3283 1.1 skrll /* If this is a -Bsymbolic link, and the symbol is defined
3284 1.1 skrll locally, we just want to emit a RELATIVE reloc. Likewise if
3285 1.1 skrll the symbol was forced to be local because of a version file.
3286 1.1 skrll The entry in the global offset table will already have been
3287 1.1 skrll initialized in the relocate_section function. */
3288 1.1 skrll if (info->shared
3289 1.1 skrll && (info->symbolic
3290 1.1 skrll || h->dynindx == -1
3291 1.1 skrll || h->forced_local)
3292 1.1 skrll && h->def_regular)
3293 1.1 skrll {
3294 1.1 skrll rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3295 1.1 skrll rela.r_addend = (h->root.u.def.value
3296 1.1 skrll + h->root.u.def.section->output_section->vma
3297 1.1 skrll + h->root.u.def.section->output_offset);
3298 1.1 skrll }
3299 1.1 skrll else
3300 1.1 skrll {
3301 1.1 skrll BFD_ASSERT ((h->got.offset & 1) == 0);
3302 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3303 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3304 1.1 skrll rela.r_addend = 0;
3305 1.1 skrll }
3306 1.1 skrll
3307 1.1 skrll loc = srela->contents;
3308 1.1 skrll loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3309 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3310 1.1 skrll ++srela->reloc_count;
3311 1.1 skrll }
3312 1.1 skrll
3313 1.1 skrll if (h->needs_copy)
3314 1.1 skrll {
3315 1.1 skrll asection *s;
3316 1.1 skrll Elf_Internal_Rela rela;
3317 1.1 skrll
3318 1.1 skrll /* This symbols needs a copy reloc. Set it up. */
3319 1.1 skrll
3320 1.1 skrll BFD_ASSERT (h->dynindx != -1
3321 1.1 skrll && (h->root.type == bfd_link_hash_defined
3322 1.1 skrll || h->root.type == bfd_link_hash_defweak));
3323 1.1 skrll
3324 1.1 skrll s = bfd_get_section_by_name (h->root.u.def.section->owner,
3325 1.1 skrll ".rela.bss");
3326 1.1 skrll BFD_ASSERT (s != NULL);
3327 1.1 skrll
3328 1.1 skrll rela.r_offset = (h->root.u.def.value
3329 1.1 skrll + h->root.u.def.section->output_section->vma
3330 1.1 skrll + h->root.u.def.section->output_offset);
3331 1.1 skrll rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3332 1.1 skrll rela.r_addend = 0;
3333 1.1 skrll loc = s->contents;
3334 1.1 skrll loc += s->reloc_count * sizeof (Elf32_External_Rela);
3335 1.1 skrll bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3336 1.1 skrll ++s->reloc_count;
3337 1.1 skrll }
3338 1.1 skrll
3339 1.1 skrll /* Mark some specially defined symbols as absolute. */
3340 1.1 skrll if (strcmp (h->root.root.string, "_DYNAMIC") == 0
3341 1.1 skrll || h == htab->root.hgot)
3342 1.1 skrll sym->st_shndx = SHN_ABS;
3343 1.1 skrll
3344 1.1 skrll return TRUE;
3345 1.1 skrll }
3346 1.1 skrll
3347 1.1 skrll
3348 1.1 skrll /* Finish up the dynamic sections. */
3349 1.1 skrll
3350 1.1 skrll static bfd_boolean
3351 1.1 skrll m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3352 1.1 skrll struct bfd_link_info *info)
3353 1.1 skrll {
3354 1.1 skrll struct elf_m32r_link_hash_table *htab;
3355 1.1 skrll bfd *dynobj;
3356 1.1 skrll asection *sdyn;
3357 1.1 skrll asection *sgot;
3358 1.1 skrll
3359 1.1.1.2 christos #ifdef DEBUG_PIC
3360 1.1.1.2 christos printf ("m32r_elf_finish_dynamic_sections()\n");
3361 1.1.1.2 christos #endif
3362 1.1 skrll
3363 1.1 skrll htab = m32r_elf_hash_table (info);
3364 1.1 skrll if (htab == NULL)
3365 1.1 skrll return FALSE;
3366 1.1 skrll
3367 1.1 skrll dynobj = htab->root.dynobj;
3368 1.1 skrll
3369 1.1 skrll sgot = htab->sgotplt;
3370 1.1 skrll sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
3371 1.1 skrll
3372 1.1 skrll if (htab->root.dynamic_sections_created)
3373 1.1 skrll {
3374 1.1 skrll asection *splt;
3375 1.1 skrll Elf32_External_Dyn *dyncon, *dynconend;
3376 1.1 skrll
3377 1.1 skrll BFD_ASSERT (sgot != NULL && sdyn != NULL);
3378 1.1 skrll
3379 1.1 skrll dyncon = (Elf32_External_Dyn *) sdyn->contents;
3380 1.1 skrll dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3381 1.1 skrll
3382 1.1 skrll for (; dyncon < dynconend; dyncon++)
3383 1.1 skrll {
3384 1.1 skrll Elf_Internal_Dyn dyn;
3385 1.1 skrll asection *s;
3386 1.1 skrll
3387 1.1 skrll bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3388 1.1 skrll
3389 1.1 skrll switch (dyn.d_tag)
3390 1.1 skrll {
3391 1.1 skrll default:
3392 1.1 skrll break;
3393 1.1 skrll
3394 1.1 skrll case DT_PLTGOT:
3395 1.1 skrll s = htab->sgot->output_section;
3396 1.1 skrll goto get_vma;
3397 1.1 skrll case DT_JMPREL:
3398 1.1 skrll s = htab->srelplt->output_section;
3399 1.1 skrll get_vma:
3400 1.1 skrll BFD_ASSERT (s != NULL);
3401 1.1 skrll dyn.d_un.d_ptr = s->vma;
3402 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3403 1.1 skrll break;
3404 1.1 skrll
3405 1.1 skrll case DT_PLTRELSZ:
3406 1.1 skrll s = htab->srelplt->output_section;
3407 1.1 skrll BFD_ASSERT (s != NULL);
3408 1.1 skrll dyn.d_un.d_val = s->size;
3409 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3410 1.1 skrll break;
3411 1.1 skrll
3412 1.1 skrll case DT_RELASZ:
3413 1.1 skrll /* My reading of the SVR4 ABI indicates that the
3414 1.1 skrll procedure linkage table relocs (DT_JMPREL) should be
3415 1.1 skrll included in the overall relocs (DT_RELA). This is
3416 1.1 skrll what Solaris does. However, UnixWare can not handle
3417 1.1 skrll that case. Therefore, we override the DT_RELASZ entry
3418 1.1 skrll here to make it not include the JMPREL relocs. Since
3419 1.1 skrll the linker script arranges for .rela.plt to follow all
3420 1.1 skrll other relocation sections, we don't have to worry
3421 1.1 skrll about changing the DT_RELA entry. */
3422 1.1 skrll if (htab->srelplt != NULL)
3423 1.1 skrll {
3424 1.1 skrll s = htab->srelplt->output_section;
3425 1.1 skrll dyn.d_un.d_val -= s->size;
3426 1.1 skrll }
3427 1.1 skrll bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3428 1.1 skrll break;
3429 1.1 skrll }
3430 1.1 skrll }
3431 1.1 skrll
3432 1.1 skrll /* Fill in the first entry in the procedure linkage table. */
3433 1.1 skrll splt = htab->splt;
3434 1.1 skrll if (splt && splt->size > 0)
3435 1.1 skrll {
3436 1.1 skrll if (info->shared)
3437 1.1 skrll {
3438 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3439 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3440 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3441 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3442 1.1 skrll bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3443 1.1 skrll }
3444 1.1 skrll else
3445 1.1 skrll {
3446 1.1 skrll unsigned long addr;
3447 1.1 skrll /* addr = .got + 4 */
3448 1.1 skrll addr = sgot->output_section->vma + sgot->output_offset + 4;
3449 1.1 skrll bfd_put_32 (output_bfd,
3450 1.1 skrll PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3451 1.1 skrll splt->contents);
3452 1.1 skrll bfd_put_32 (output_bfd,
3453 1.1 skrll PLT0_ENTRY_WORD1 | (addr & 0xffff),
3454 1.1 skrll splt->contents + 4);
3455 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3456 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3457 1.1 skrll bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3458 1.1 skrll }
3459 1.1 skrll
3460 1.1 skrll elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3461 1.1 skrll PLT_ENTRY_SIZE;
3462 1.1 skrll }
3463 1.1 skrll }
3464 1.1 skrll
3465 1.1 skrll /* Fill in the first three entries in the global offset table. */
3466 1.1 skrll if (sgot && sgot->size > 0)
3467 1.1 skrll {
3468 1.1 skrll if (sdyn == NULL)
3469 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3470 1.1 skrll else
3471 1.1 skrll bfd_put_32 (output_bfd,
3472 1.1 skrll sdyn->output_section->vma + sdyn->output_offset,
3473 1.1 skrll sgot->contents);
3474 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3475 1.1 skrll bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3476 1.1 skrll
3477 1.1 skrll elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3478 1.1 skrll }
3479 1.1 skrll
3480 1.1 skrll return TRUE;
3481 1.1 skrll }
3482 1.1 skrll
3483 1.1 skrll
3484 1.1 skrll /* Set the right machine number. */
3486 1.1 skrll
3487 1.1 skrll static bfd_boolean
3488 1.1 skrll m32r_elf_object_p (bfd *abfd)
3489 1.1 skrll {
3490 1.1 skrll switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3491 1.1 skrll {
3492 1.1 skrll default:
3493 1.1 skrll case E_M32R_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r); break;
3494 1.1 skrll case E_M32RX_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3495 1.1 skrll case E_M32R2_ARCH: (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3496 1.1 skrll }
3497 1.1 skrll return TRUE;
3498 1.1 skrll }
3499 1.1 skrll
3500 1.1 skrll /* Store the machine number in the flags field. */
3501 1.1 skrll
3502 1.1 skrll static void
3503 1.1 skrll m32r_elf_final_write_processing (bfd *abfd,
3504 1.1 skrll bfd_boolean linker ATTRIBUTE_UNUSED)
3505 1.1 skrll {
3506 1.1 skrll unsigned long val;
3507 1.1 skrll
3508 1.1 skrll switch (bfd_get_mach (abfd))
3509 1.1 skrll {
3510 1.1 skrll default:
3511 1.1 skrll case bfd_mach_m32r: val = E_M32R_ARCH; break;
3512 1.1 skrll case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3513 1.1 skrll case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3514 1.1 skrll }
3515 1.1 skrll
3516 1.1 skrll elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3517 1.1 skrll elf_elfheader (abfd)->e_flags |= val;
3518 1.1 skrll }
3519 1.1 skrll
3520 1.1 skrll /* Function to keep M32R specific file flags. */
3521 1.1 skrll
3522 1.1 skrll static bfd_boolean
3523 1.1 skrll m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3524 1.1 skrll {
3525 1.1 skrll BFD_ASSERT (!elf_flags_init (abfd)
3526 1.1 skrll || elf_elfheader (abfd)->e_flags == flags);
3527 1.1 skrll
3528 1.1 skrll elf_elfheader (abfd)->e_flags = flags;
3529 1.1 skrll elf_flags_init (abfd) = TRUE;
3530 1.1 skrll return TRUE;
3531 1.1 skrll }
3532 1.1 skrll
3533 1.1 skrll /* Merge backend specific data from an object file to the output
3534 1.1 skrll object file when linking. */
3535 1.1 skrll
3536 1.1 skrll static bfd_boolean
3537 1.1 skrll m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3538 1.1 skrll {
3539 1.1 skrll flagword out_flags;
3540 1.1 skrll flagword in_flags;
3541 1.1 skrll
3542 1.1 skrll if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3543 1.1 skrll || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3544 1.1 skrll return TRUE;
3545 1.1 skrll
3546 1.1 skrll in_flags = elf_elfheader (ibfd)->e_flags;
3547 1.1 skrll out_flags = elf_elfheader (obfd)->e_flags;
3548 1.1 skrll
3549 1.1 skrll if (! elf_flags_init (obfd))
3550 1.1 skrll {
3551 1.1 skrll /* If the input is the default architecture then do not
3552 1.1 skrll bother setting the flags for the output architecture,
3553 1.1 skrll instead allow future merges to do this. If no future
3554 1.1 skrll merges ever set these flags then they will retain their
3555 1.1 skrll unitialised values, which surprise surprise, correspond
3556 1.1 skrll to the default values. */
3557 1.1 skrll if (bfd_get_arch_info (ibfd)->the_default)
3558 1.1 skrll return TRUE;
3559 1.1 skrll
3560 1.1 skrll elf_flags_init (obfd) = TRUE;
3561 1.1 skrll elf_elfheader (obfd)->e_flags = in_flags;
3562 1.1 skrll
3563 1.1 skrll if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3564 1.1 skrll && bfd_get_arch_info (obfd)->the_default)
3565 1.1 skrll return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3566 1.1 skrll bfd_get_mach (ibfd));
3567 1.1 skrll
3568 1.1 skrll return TRUE;
3569 1.1 skrll }
3570 1.1 skrll
3571 1.1 skrll /* Check flag compatibility. */
3572 1.1 skrll if (in_flags == out_flags)
3573 1.1 skrll return TRUE;
3574 1.1 skrll
3575 1.1 skrll if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3576 1.1 skrll {
3577 1.1 skrll if ( ((in_flags & EF_M32R_ARCH) != E_M32R_ARCH)
3578 1.1 skrll || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3579 1.1 skrll || ((in_flags & EF_M32R_ARCH) == E_M32R2_ARCH))
3580 1.1 skrll {
3581 1.1 skrll (*_bfd_error_handler)
3582 1.1 skrll (_("%B: Instruction set mismatch with previous modules"), ibfd);
3583 1.1 skrll
3584 1.1 skrll bfd_set_error (bfd_error_bad_value);
3585 1.1 skrll return FALSE;
3586 1.1 skrll }
3587 1.1 skrll }
3588 1.1 skrll
3589 1.1 skrll return TRUE;
3590 1.1 skrll }
3591 1.1 skrll
3592 1.1 skrll /* Display the flags field. */
3593 1.1 skrll
3594 1.1 skrll static bfd_boolean
3595 1.1 skrll m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3596 1.1 skrll {
3597 1.1 skrll FILE * file = (FILE *) ptr;
3598 1.1 skrll
3599 1.1 skrll BFD_ASSERT (abfd != NULL && ptr != NULL);
3600 1.1 skrll
3601 1.1 skrll _bfd_elf_print_private_bfd_data (abfd, ptr);
3602 1.1 skrll
3603 1.1 skrll fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3604 1.1 skrll
3605 1.1 skrll switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3606 1.1 skrll {
3607 1.1 skrll default:
3608 1.1 skrll case E_M32R_ARCH: fprintf (file, _(": m32r instructions")); break;
3609 1.1 skrll case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3610 1.1 skrll case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3611 1.1 skrll }
3612 1.1 skrll
3613 1.1 skrll fputc ('\n', file);
3614 1.1 skrll
3615 1.1 skrll return TRUE;
3616 1.1 skrll }
3617 1.1 skrll
3618 1.1 skrll static asection *
3619 1.1 skrll m32r_elf_gc_mark_hook (asection *sec,
3620 1.1 skrll struct bfd_link_info *info,
3621 1.1 skrll Elf_Internal_Rela *rel,
3622 1.1 skrll struct elf_link_hash_entry *h,
3623 1.1 skrll Elf_Internal_Sym *sym)
3624 1.1 skrll {
3625 1.1 skrll if (h != NULL)
3626 1.1 skrll switch (ELF32_R_TYPE (rel->r_info))
3627 1.1 skrll {
3628 1.1 skrll case R_M32R_GNU_VTINHERIT:
3629 1.1 skrll case R_M32R_GNU_VTENTRY:
3630 1.1 skrll case R_M32R_RELA_GNU_VTINHERIT:
3631 1.1 skrll case R_M32R_RELA_GNU_VTENTRY:
3632 1.1 skrll return NULL;
3633 1.1 skrll }
3634 1.1 skrll
3635 1.1 skrll return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3636 1.1 skrll }
3637 1.1 skrll
3638 1.1 skrll static bfd_boolean
3639 1.1 skrll m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3640 1.1 skrll struct bfd_link_info *info ATTRIBUTE_UNUSED,
3641 1.1 skrll asection *sec ATTRIBUTE_UNUSED,
3642 1.1 skrll const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3643 1.1 skrll {
3644 1.1 skrll /* Update the got entry reference counts for the section being removed. */
3645 1.1 skrll Elf_Internal_Shdr *symtab_hdr;
3646 1.1 skrll struct elf_link_hash_entry **sym_hashes;
3647 1.1 skrll bfd_signed_vma *local_got_refcounts;
3648 1.1 skrll const Elf_Internal_Rela *rel, *relend;
3649 1.1 skrll
3650 1.1 skrll if (info->relocatable)
3651 1.1 skrll return TRUE;
3652 1.1 skrll
3653 1.1 skrll elf_section_data (sec)->local_dynrel = NULL;
3654 1.1 skrll
3655 1.1 skrll symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3656 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
3657 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
3658 1.1 skrll
3659 1.1 skrll relend = relocs + sec->reloc_count;
3660 1.1 skrll for (rel = relocs; rel < relend; rel++)
3661 1.1 skrll {
3662 1.1 skrll unsigned long r_symndx;
3663 1.1 skrll struct elf_link_hash_entry *h = NULL;
3664 1.1 skrll
3665 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
3666 1.1 skrll if (r_symndx >= symtab_hdr->sh_info)
3667 1.1 skrll {
3668 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3669 1.1 skrll while (h->root.type == bfd_link_hash_indirect
3670 1.1 skrll || h->root.type == bfd_link_hash_warning)
3671 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
3672 1.1 skrll }
3673 1.1 skrll
3674 1.1 skrll switch (ELF32_R_TYPE (rel->r_info))
3675 1.1 skrll {
3676 1.1 skrll case R_M32R_GOT16_HI_ULO:
3677 1.1 skrll case R_M32R_GOT16_HI_SLO:
3678 1.1 skrll case R_M32R_GOT16_LO:
3679 1.1 skrll case R_M32R_GOTOFF:
3680 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
3681 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
3682 1.1 skrll case R_M32R_GOTOFF_LO:
3683 1.1 skrll case R_M32R_GOT24:
3684 1.1 skrll case R_M32R_GOTPC_HI_ULO:
3685 1.1 skrll case R_M32R_GOTPC_HI_SLO:
3686 1.1 skrll case R_M32R_GOTPC_LO:
3687 1.1 skrll case R_M32R_GOTPC24:
3688 1.1 skrll if (h != NULL)
3689 1.1 skrll {
3690 1.1 skrll if (h->got.refcount > 0)
3691 1.1 skrll h->got.refcount--;
3692 1.1 skrll }
3693 1.1 skrll else
3694 1.1 skrll {
3695 1.1 skrll if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3696 1.1 skrll local_got_refcounts[r_symndx]--;
3697 1.1 skrll }
3698 1.1 skrll break;
3699 1.1 skrll
3700 1.1 skrll case R_M32R_16_RELA:
3701 1.1 skrll case R_M32R_24_RELA:
3702 1.1 skrll case R_M32R_32_RELA:
3703 1.1 skrll case R_M32R_REL32:
3704 1.1 skrll case R_M32R_HI16_ULO_RELA:
3705 1.1 skrll case R_M32R_HI16_SLO_RELA:
3706 1.1 skrll case R_M32R_LO16_RELA:
3707 1.1 skrll case R_M32R_SDA16_RELA:
3708 1.1 skrll case R_M32R_10_PCREL_RELA:
3709 1.1 skrll case R_M32R_18_PCREL_RELA:
3710 1.1 skrll case R_M32R_26_PCREL_RELA:
3711 1.1 skrll if (h != NULL)
3712 1.1 skrll {
3713 1.1 skrll struct elf_m32r_link_hash_entry *eh;
3714 1.1 skrll struct elf_m32r_dyn_relocs **pp;
3715 1.1 skrll struct elf_m32r_dyn_relocs *p;
3716 1.1 skrll
3717 1.1 skrll if (!info->shared && h->plt.refcount > 0)
3718 1.1 skrll h->plt.refcount -= 1;
3719 1.1 skrll
3720 1.1 skrll eh = (struct elf_m32r_link_hash_entry *) h;
3721 1.1 skrll
3722 1.1 skrll for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3723 1.1 skrll if (p->sec == sec)
3724 1.1 skrll {
3725 1.1 skrll if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3726 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3727 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3728 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3729 1.1 skrll p->pc_count -= 1;
3730 1.1 skrll p->count -= 1;
3731 1.1 skrll if (p->count == 0)
3732 1.1 skrll *pp = p->next;
3733 1.1 skrll break;
3734 1.1 skrll }
3735 1.1 skrll }
3736 1.1 skrll break;
3737 1.1 skrll
3738 1.1 skrll case R_M32R_26_PLTREL:
3739 1.1 skrll if (h != NULL)
3740 1.1 skrll {
3741 1.1 skrll if (h->plt.refcount > 0)
3742 1.1 skrll h->plt.refcount--;
3743 1.1 skrll }
3744 1.1 skrll break;
3745 1.1 skrll
3746 1.1 skrll default:
3747 1.1 skrll break;
3748 1.1 skrll }
3749 1.1 skrll }
3750 1.1 skrll
3751 1.1 skrll return TRUE;
3752 1.1 skrll }
3753 1.1 skrll
3754 1.1 skrll /* Look through the relocs for a section during the first phase.
3755 1.1 skrll Since we don't do .gots or .plts, we just need to consider the
3756 1.1 skrll virtual table relocs for gc. */
3757 1.1 skrll
3758 1.1 skrll static bfd_boolean
3759 1.1 skrll m32r_elf_check_relocs (bfd *abfd,
3760 1.1 skrll struct bfd_link_info *info,
3761 1.1 skrll asection *sec,
3762 1.1 skrll const Elf_Internal_Rela *relocs)
3763 1.1 skrll {
3764 1.1.1.2 christos Elf_Internal_Shdr *symtab_hdr;
3765 1.1 skrll struct elf_link_hash_entry **sym_hashes;
3766 1.1 skrll const Elf_Internal_Rela *rel;
3767 1.1 skrll const Elf_Internal_Rela *rel_end;
3768 1.1 skrll struct elf_m32r_link_hash_table *htab;
3769 1.1.1.2 christos bfd *dynobj;
3770 1.1 skrll asection *sreloc;
3771 1.1 skrll
3772 1.1 skrll if (info->relocatable)
3773 1.1 skrll return TRUE;
3774 1.1.1.2 christos
3775 1.1.1.2 christos sreloc = NULL;
3776 1.1.1.2 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3777 1.1 skrll sym_hashes = elf_sym_hashes (abfd);
3778 1.1 skrll
3779 1.1 skrll htab = m32r_elf_hash_table (info);
3780 1.1 skrll if (htab == NULL)
3781 1.1 skrll return FALSE;
3782 1.1 skrll
3783 1.1 skrll dynobj = htab->root.dynobj;
3784 1.1 skrll
3785 1.1 skrll rel_end = relocs + sec->reloc_count;
3786 1.1 skrll for (rel = relocs; rel < rel_end; rel++)
3787 1.1 skrll {
3788 1.1 skrll int r_type;
3789 1.1 skrll struct elf_link_hash_entry *h;
3790 1.1 skrll unsigned long r_symndx;
3791 1.1 skrll
3792 1.1 skrll r_symndx = ELF32_R_SYM (rel->r_info);
3793 1.1 skrll r_type = ELF32_R_TYPE (rel->r_info);
3794 1.1 skrll if (r_symndx < symtab_hdr->sh_info)
3795 1.1 skrll h = NULL;
3796 1.1 skrll else
3797 1.1 skrll {
3798 1.1 skrll h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3799 1.1 skrll while (h->root.type == bfd_link_hash_indirect
3800 1.1 skrll || h->root.type == bfd_link_hash_warning)
3801 1.1 skrll h = (struct elf_link_hash_entry *) h->root.u.i.link;
3802 1.1 skrll }
3803 1.1 skrll
3804 1.1 skrll /* Some relocs require a global offset table. */
3805 1.1 skrll if (htab->sgot == NULL)
3806 1.1 skrll {
3807 1.1 skrll switch (r_type)
3808 1.1 skrll {
3809 1.1 skrll case R_M32R_GOT16_HI_ULO:
3810 1.1 skrll case R_M32R_GOT16_HI_SLO:
3811 1.1 skrll case R_M32R_GOTOFF:
3812 1.1 skrll case R_M32R_GOTOFF_HI_ULO:
3813 1.1 skrll case R_M32R_GOTOFF_HI_SLO:
3814 1.1 skrll case R_M32R_GOTOFF_LO:
3815 1.1 skrll case R_M32R_GOT16_LO:
3816 1.1 skrll case R_M32R_GOTPC24:
3817 1.1 skrll case R_M32R_GOTPC_HI_ULO:
3818 1.1 skrll case R_M32R_GOTPC_HI_SLO:
3819 1.1 skrll case R_M32R_GOTPC_LO:
3820 1.1 skrll case R_M32R_GOT24:
3821 1.1 skrll if (dynobj == NULL)
3822 1.1 skrll htab->root.dynobj = dynobj = abfd;
3823 1.1 skrll if (! create_got_section (dynobj, info))
3824 1.1 skrll return FALSE;
3825 1.1 skrll break;
3826 1.1 skrll
3827 1.1 skrll default:
3828 1.1 skrll break;
3829 1.1 skrll }
3830 1.1 skrll }
3831 1.1 skrll
3832 1.1 skrll switch (r_type)
3833 1.1 skrll {
3834 1.1 skrll case R_M32R_GOT16_HI_ULO:
3835 1.1 skrll case R_M32R_GOT16_HI_SLO:
3836 1.1 skrll case R_M32R_GOT16_LO:
3837 1.1 skrll case R_M32R_GOT24:
3838 1.1 skrll
3839 1.1 skrll if (h != NULL)
3840 1.1 skrll h->got.refcount += 1;
3841 1.1 skrll else
3842 1.1 skrll {
3843 1.1 skrll bfd_signed_vma *local_got_refcounts;
3844 1.1 skrll
3845 1.1 skrll /* This is a global offset table entry for a local
3846 1.1 skrll symbol. */
3847 1.1 skrll local_got_refcounts = elf_local_got_refcounts (abfd);
3848 1.1 skrll if (local_got_refcounts == NULL)
3849 1.1 skrll {
3850 1.1 skrll bfd_size_type size;
3851 1.1 skrll
3852 1.1 skrll size = symtab_hdr->sh_info;
3853 1.1 skrll size *= sizeof (bfd_signed_vma);
3854 1.1 skrll local_got_refcounts = bfd_zalloc (abfd, size);
3855 1.1 skrll if (local_got_refcounts == NULL)
3856 1.1 skrll return FALSE;
3857 1.1 skrll elf_local_got_refcounts (abfd) = local_got_refcounts;
3858 1.1 skrll }
3859 1.1 skrll local_got_refcounts[r_symndx] += 1;
3860 1.1 skrll }
3861 1.1 skrll break;
3862 1.1 skrll
3863 1.1 skrll case R_M32R_26_PLTREL:
3864 1.1 skrll /* This symbol requires a procedure linkage table entry. We
3865 1.1 skrll actually build the entry in adjust_dynamic_symbol,
3866 1.1 skrll because this might be a case of linking PIC code without
3867 1.1 skrll linking in any dynamic objects, in which case we don't
3868 1.1 skrll need to generate a procedure linkage table after all. */
3869 1.1 skrll
3870 1.1 skrll /* If this is a local symbol, we resolve it directly without
3871 1.1 skrll creating a procedure linkage table entry. */
3872 1.1 skrll if (h == NULL)
3873 1.1 skrll continue;
3874 1.1 skrll
3875 1.1 skrll if (h->forced_local)
3876 1.1 skrll break;
3877 1.1 skrll
3878 1.1 skrll h->needs_plt = 1;
3879 1.1 skrll h->plt.refcount += 1;
3880 1.1 skrll break;
3881 1.1 skrll
3882 1.1 skrll case R_M32R_16_RELA:
3883 1.1 skrll case R_M32R_24_RELA:
3884 1.1 skrll case R_M32R_32_RELA:
3885 1.1 skrll case R_M32R_REL32:
3886 1.1 skrll case R_M32R_HI16_ULO_RELA:
3887 1.1 skrll case R_M32R_HI16_SLO_RELA:
3888 1.1 skrll case R_M32R_LO16_RELA:
3889 1.1 skrll case R_M32R_SDA16_RELA:
3890 1.1 skrll case R_M32R_10_PCREL_RELA:
3891 1.1 skrll case R_M32R_18_PCREL_RELA:
3892 1.1 skrll case R_M32R_26_PCREL_RELA:
3893 1.1 skrll
3894 1.1 skrll if (h != NULL && !info->shared)
3895 1.1 skrll {
3896 1.1 skrll h->non_got_ref = 1;
3897 1.1 skrll h->plt.refcount += 1;
3898 1.1 skrll }
3899 1.1 skrll
3900 1.1 skrll /* If we are creating a shared library, and this is a reloc
3901 1.1 skrll against a global symbol, or a non PC relative reloc
3902 1.1 skrll against a local symbol, then we need to copy the reloc
3903 1.1 skrll into the shared library. However, if we are linking with
3904 1.1 skrll -Bsymbolic, we do not need to copy a reloc against a
3905 1.1 skrll global symbol which is defined in an object we are
3906 1.1 skrll including in the link (i.e., DEF_REGULAR is set). At
3907 1.1 skrll this point we have not seen all the input files, so it is
3908 1.1 skrll possible that DEF_REGULAR is not set now but will be set
3909 1.1 skrll later (it is never cleared). We account for that
3910 1.1 skrll possibility below by storing information in the
3911 1.1 skrll dyn_relocs field of the hash table entry. A similar
3912 1.1 skrll situation occurs when creating shared libraries and symbol
3913 1.1 skrll visibility changes render the symbol local.
3914 1.1 skrll
3915 1.1 skrll If on the other hand, we are creating an executable, we
3916 1.1 skrll may need to keep relocations for symbols satisfied by a
3917 1.1 skrll dynamic library if we manage to avoid copy relocs for the
3918 1.1 skrll symbol. */
3919 1.1 skrll if ((info->shared
3920 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
3921 1.1 skrll && (( r_type != R_M32R_26_PCREL_RELA
3922 1.1 skrll && r_type != R_M32R_18_PCREL_RELA
3923 1.1 skrll && r_type != R_M32R_10_PCREL_RELA
3924 1.1 skrll && r_type != R_M32R_REL32)
3925 1.1 skrll || (h != NULL
3926 1.1 skrll && (! info->symbolic
3927 1.1 skrll || h->root.type == bfd_link_hash_defweak
3928 1.1 skrll || !h->def_regular))))
3929 1.1 skrll || (!info->shared
3930 1.1 skrll && (sec->flags & SEC_ALLOC) != 0
3931 1.1 skrll && h != NULL
3932 1.1 skrll && (h->root.type == bfd_link_hash_defweak
3933 1.1 skrll || !h->def_regular)))
3934 1.1 skrll {
3935 1.1 skrll struct elf_m32r_dyn_relocs *p;
3936 1.1 skrll struct elf_m32r_dyn_relocs **head;
3937 1.1 skrll
3938 1.1 skrll if (dynobj == NULL)
3939 1.1 skrll htab->root.dynobj = dynobj = abfd;
3940 1.1.1.2 christos
3941 1.1.1.2 christos /* When creating a shared object, we must copy these
3942 1.1 skrll relocs into the output file. We create a reloc
3943 1.1.1.2 christos section in dynobj and make room for the reloc. */
3944 1.1.1.2 christos if (sreloc == NULL)
3945 1.1 skrll {
3946 1.1 skrll sreloc = _bfd_elf_make_dynamic_reloc_section
3947 1.1 skrll (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3948 1.1 skrll
3949 1.1 skrll if (sreloc == NULL)
3950 1.1 skrll return FALSE;
3951 1.1 skrll }
3952 1.1 skrll
3953 1.1.1.2 christos /* If this is a global symbol, we count the number of
3954 1.1 skrll relocations we need for this symbol. */
3955 1.1 skrll if (h != NULL)
3956 1.1.1.2 christos head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3957 1.1 skrll else
3958 1.1.1.2 christos {
3959 1.1.1.2 christos /* Track dynamic relocs needed for local syms too. */
3960 1.1.1.2 christos asection *s;
3961 1.1.1.2 christos void *vpp;
3962 1.1.1.2 christos Elf_Internal_Sym *isym;
3963 1.1.1.2 christos
3964 1.1.1.2 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3965 1.1.1.2 christos abfd, r_symndx);
3966 1.1 skrll if (isym == NULL)
3967 1.1 skrll return FALSE;
3968 1.1 skrll
3969 1.1 skrll s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3970 1.1 skrll if (s == NULL)
3971 1.1 skrll s = sec;
3972 1.1 skrll
3973 1.1 skrll vpp = &elf_section_data (s)->local_dynrel;
3974 1.1 skrll head = (struct elf_m32r_dyn_relocs **) vpp;
3975 1.1 skrll }
3976 1.1 skrll
3977 1.1 skrll p = *head;
3978 1.1 skrll if (p == NULL || p->sec != sec)
3979 1.1 skrll {
3980 1.1 skrll bfd_size_type amt = sizeof (*p);
3981 1.1 skrll
3982 1.1 skrll p = bfd_alloc (dynobj, amt);
3983 1.1 skrll if (p == NULL)
3984 1.1 skrll return FALSE;
3985 1.1 skrll p->next = *head;
3986 1.1 skrll *head = p;
3987 1.1 skrll p->sec = sec;
3988 1.1 skrll p->count = 0;
3989 1.1 skrll p->pc_count = 0;
3990 1.1 skrll }
3991 1.1 skrll
3992 1.1 skrll p->count += 1;
3993 1.1 skrll if ( ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3994 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3995 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3996 1.1 skrll || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3997 1.1 skrll p->pc_count += 1;
3998 1.1 skrll }
3999 1.1 skrll break;
4000 1.1 skrll
4001 1.1 skrll /* This relocation describes the C++ object vtable hierarchy.
4002 1.1 skrll Reconstruct it for later use during GC. */
4003 1.1 skrll case R_M32R_RELA_GNU_VTINHERIT:
4004 1.1 skrll case R_M32R_GNU_VTINHERIT:
4005 1.1 skrll if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
4006 1.1 skrll return FALSE;
4007 1.1 skrll break;
4008 1.1 skrll
4009 1.1 skrll /* This relocation describes which C++ vtable entries are actually
4010 1.1 skrll used. Record for later use during GC. */
4011 1.1 skrll case R_M32R_GNU_VTENTRY:
4012 1.1 skrll BFD_ASSERT (h != NULL);
4013 1.1 skrll if (h != NULL
4014 1.1 skrll && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
4015 1.1 skrll return FALSE;
4016 1.1 skrll break;
4017 1.1 skrll case R_M32R_RELA_GNU_VTENTRY:
4018 1.1 skrll BFD_ASSERT (h != NULL);
4019 1.1 skrll if (h != NULL
4020 1.1 skrll && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
4021 1.1 skrll return FALSE;
4022 1.1 skrll break;
4023 1.1 skrll }
4024 1.1 skrll }
4025 1.1 skrll
4026 1.1 skrll return TRUE;
4027 1.1 skrll }
4028 1.1 skrll
4029 1.1 skrll static const struct bfd_elf_special_section m32r_elf_special_sections[] =
4030 1.1 skrll {
4031 1.1 skrll { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE },
4032 1.1 skrll { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
4033 1.1 skrll { NULL, 0, 0, 0, 0 }
4034 1.1 skrll };
4035 1.1 skrll
4036 1.1 skrll static enum elf_reloc_type_class
4037 1.1 skrll m32r_elf_reloc_type_class (const Elf_Internal_Rela *rela)
4038 1.1 skrll {
4039 1.1 skrll switch ((int) ELF32_R_TYPE (rela->r_info))
4040 1.1 skrll {
4041 1.1 skrll case R_M32R_RELATIVE: return reloc_class_relative;
4042 1.1 skrll case R_M32R_JMP_SLOT: return reloc_class_plt;
4043 1.1.1.2 christos case R_M32R_COPY: return reloc_class_copy;
4044 1.1 skrll default: return reloc_class_normal;
4045 1.1 skrll }
4046 1.1 skrll }
4047 1.1 skrll
4048 1.1 skrll #define ELF_ARCH bfd_arch_m32r
4050 1.1 skrll #define ELF_TARGET_ID M32R_ELF_DATA
4051 1.1 skrll #define ELF_MACHINE_CODE EM_M32R
4052 1.1 skrll #define ELF_MACHINE_ALT1 EM_CYGNUS_M32R
4053 1.1 skrll #define ELF_MAXPAGESIZE 0x1 /* Explicitly requested by Mitsubishi. */
4054 1.1 skrll
4055 1.1 skrll #define TARGET_BIG_SYM bfd_elf32_m32r_vec
4056 1.1 skrll #define TARGET_BIG_NAME "elf32-m32r"
4057 1.1 skrll #define TARGET_LITTLE_SYM bfd_elf32_m32rle_vec
4058 1.1 skrll #define TARGET_LITTLE_NAME "elf32-m32rle"
4059 1.1 skrll
4060 1.1 skrll #define elf_info_to_howto m32r_info_to_howto
4061 1.1 skrll #define elf_info_to_howto_rel m32r_info_to_howto_rel
4062 1.1 skrll #define elf_backend_section_from_bfd_section _bfd_m32r_elf_section_from_bfd_section
4063 1.1 skrll #define elf_backend_symbol_processing _bfd_m32r_elf_symbol_processing
4064 1.1 skrll #define elf_backend_add_symbol_hook m32r_elf_add_symbol_hook
4065 1.1 skrll #define elf_backend_relocate_section m32r_elf_relocate_section
4066 1.1 skrll #define elf_backend_gc_mark_hook m32r_elf_gc_mark_hook
4067 1.1 skrll #define elf_backend_gc_sweep_hook m32r_elf_gc_sweep_hook
4068 1.1 skrll #define elf_backend_check_relocs m32r_elf_check_relocs
4069 1.1 skrll
4070 1.1 skrll #define elf_backend_create_dynamic_sections m32r_elf_create_dynamic_sections
4071 1.1 skrll #define bfd_elf32_bfd_link_hash_table_create m32r_elf_link_hash_table_create
4072 1.1 skrll #define elf_backend_size_dynamic_sections m32r_elf_size_dynamic_sections
4073 1.1 skrll #define elf_backend_omit_section_dynsym \
4074 1.1 skrll ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4075 1.1 skrll #define elf_backend_finish_dynamic_sections m32r_elf_finish_dynamic_sections
4076 1.1 skrll #define elf_backend_adjust_dynamic_symbol m32r_elf_adjust_dynamic_symbol
4077 1.1 skrll #define elf_backend_finish_dynamic_symbol m32r_elf_finish_dynamic_symbol
4078 1.1 skrll #define elf_backend_reloc_type_class m32r_elf_reloc_type_class
4079 1.1 skrll #define elf_backend_copy_indirect_symbol m32r_elf_copy_indirect_symbol
4080 1.1 skrll
4081 1.1 skrll #define elf_backend_can_gc_sections 1
4082 1.1 skrll /*#if !USE_REL
4083 1.1 skrll #define elf_backend_rela_normal 1
4084 1.1 skrll #endif*/
4085 1.1 skrll #define elf_backend_can_refcount 1
4086 1.1 skrll #define elf_backend_want_got_plt 1
4087 1.1 skrll #define elf_backend_plt_readonly 1
4088 1.1 skrll #define elf_backend_want_plt_sym 0
4089 1.1 skrll #define elf_backend_got_header_size 12
4090 1.1 skrll
4091 1.1 skrll #define elf_backend_may_use_rel_p 1
4092 1.1 skrll #ifdef USE_M32R_OLD_RELOC
4093 1.1 skrll #define elf_backend_default_use_rela_p 0
4094 1.1 skrll #define elf_backend_may_use_rela_p 0
4095 1.1 skrll #else
4096 1.1 skrll #define elf_backend_default_use_rela_p 1
4097 1.1 skrll #define elf_backend_may_use_rela_p 1
4098 1.1 skrll #endif
4099 1.1 skrll
4100 1.1 skrll #define elf_backend_object_p m32r_elf_object_p
4101 1.1 skrll #define elf_backend_final_write_processing m32r_elf_final_write_processing
4102 1.1 skrll #define bfd_elf32_bfd_merge_private_bfd_data m32r_elf_merge_private_bfd_data
4103 1.1 skrll #define bfd_elf32_bfd_set_private_flags m32r_elf_set_private_flags
4104 1.1 skrll #define bfd_elf32_bfd_print_private_bfd_data m32r_elf_print_private_bfd_data
4105 1.1 skrll #define elf_backend_special_sections m32r_elf_special_sections
4106 1.1 skrll
4107 1.1 skrll #include "elf32-target.h"
4108 1.1 skrll
4109 1.1 skrll #undef ELF_MAXPAGESIZE
4110 1.1 skrll #define ELF_MAXPAGESIZE 0x1000
4111 1.1 skrll
4112 1.1 skrll #undef TARGET_BIG_SYM
4113 1.1 skrll #define TARGET_BIG_SYM bfd_elf32_m32rlin_vec
4114 1.1 skrll #undef TARGET_BIG_NAME
4115 1.1 skrll #define TARGET_BIG_NAME "elf32-m32r-linux"
4116 1.1 skrll #undef TARGET_LITTLE_SYM
4117 1.1 skrll #define TARGET_LITTLE_SYM bfd_elf32_m32rlelin_vec
4118 #undef TARGET_LITTLE_NAME
4119 #define TARGET_LITTLE_NAME "elf32-m32rle-linux"
4120 #undef elf32_bed
4121 #define elf32_bed elf32_m32r_lin_bed
4122
4123 #include "elf32-target.h"
4124
4125