1 /* M32R-specific support for 32-bit ELF.
2    Copyright (C) 1996-2016 Free Software Foundation, Inc.
3 
4    This file is part of BFD, the Binary File Descriptor library.
5 
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19    MA 02110-1301, USA.  */
20 
21 #include "sysdep.h"
22 #include "bfd.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "elf/m32r.h"
26 
27 #define NOP_INSN		0x7000
28 #define MAKE_PARALLEL(insn)	((insn) | 0x8000)
29 
30 /* Use REL instead of RELA to save space.
31    This only saves space in libraries and object files, but perhaps
32    relocs will be put in ROM?  All in all though, REL relocs are a pain
33    to work with.  */
34 /* #define USE_REL	1
35 
36 #ifndef USE_REL
37 #define USE_REL	0
38 #endif */
39 /* Use RELA. But use REL to link old objects for backwords compatibility.  */
40 
41 /* Functions for the M32R ELF linker.  */
42 
43 /* The name of the dynamic interpreter.  This is put in the .interp
44    section.  */
45 
46 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1"
47 
48 /* The nop opcode we use.  */
49 
50 #define M32R_NOP 0x7000f000
51 
52 #define PLT_EMPTY   0x10101010  /* RIE  -> RIE */
53 
54 /* The size in bytes of an entry in the procedure linkage table.  */
55 
56 #define PLT_ENTRY_SIZE 20
57 #define PLT_HEADER_SIZE 20
58 
59 /* The first one entries in a procedure linkage table are reserved,
60    and the initial contents are unimportant (we zero them out).
61    Subsequent entries look like this. */
62 
63 #define PLT0_ENTRY_WORD0  0xd6c00000    /* seth r6, #high(.got+4)          */
64 #define PLT0_ENTRY_WORD1  0x86e60000    /* or3  r6, r6, #low(.got)+4)      */
65 #define PLT0_ENTRY_WORD2  0x24e626c6    /* ld   r4, @r6+    -> ld r6, @r6  */
66 #define PLT0_ENTRY_WORD3  0x1fc6f000    /* jmp  r6          || pnop        */
67 #define PLT0_ENTRY_WORD4  PLT_EMPTY     /* RIE             -> RIE          */
68 
69 #define PLT0_PIC_ENTRY_WORD0  0xa4cc0004 /* ld   r4, @(4,r12)              */
70 #define PLT0_PIC_ENTRY_WORD1  0xa6cc0008 /* ld   r6, @(8,r12)              */
71 #define PLT0_PIC_ENTRY_WORD2  0x1fc6f000 /* jmp  r6         || nop         */
72 #define PLT0_PIC_ENTRY_WORD3  PLT_EMPTY  /* RIE             -> RIE         */
73 #define PLT0_PIC_ENTRY_WORD4  PLT_EMPTY  /* RIE             -> RIE         */
74 
75 #define PLT_ENTRY_WORD0  0xe6000000 /* ld24 r6, .name_in_GOT                */
76 #define PLT_ENTRY_WORD1  0x06acf000 /* add  r6, r12          || nop         */
77 #define PLT_ENTRY_WORD0b 0xd6c00000 /* seth r6, #high(.name_in_GOT)         */
78 #define PLT_ENTRY_WORD1b 0x86e60000 /* or3  r6, r6, #low(.name_in_GOT)      */
79 #define PLT_ENTRY_WORD2  0x26c61fc6 /* ld  r6, @r6           -> jmp r6      */
80 #define PLT_ENTRY_WORD3  0xe5000000 /* ld24 r5, $offset                     */
81 #define PLT_ENTRY_WORD4  0xff000000 /* bra  .plt0.                          */
82 
83 
84 /* Utility to actually perform an R_M32R_10_PCREL reloc.  */
85 
86 static bfd_reloc_status_type
m32r_elf_do_10_pcrel_reloc(bfd * abfd,reloc_howto_type * howto,asection * input_section,bfd_byte * data,bfd_vma offset,asection * symbol_section ATTRIBUTE_UNUSED,bfd_vma symbol_value,bfd_vma addend)87 m32r_elf_do_10_pcrel_reloc (bfd *abfd,
88 			    reloc_howto_type *howto,
89 			    asection *input_section,
90 			    bfd_byte *data,
91 			    bfd_vma offset,
92 			    asection *symbol_section ATTRIBUTE_UNUSED,
93 			    bfd_vma symbol_value,
94 			    bfd_vma addend)
95 {
96   bfd_signed_vma relocation;
97   unsigned long x;
98   bfd_reloc_status_type status;
99 
100   /* Sanity check the address (offset in section).  */
101   if (offset > bfd_get_section_limit (abfd, input_section))
102     return bfd_reloc_outofrange;
103 
104   relocation = symbol_value + addend;
105   /* Make it pc relative.  */
106   relocation -=	(input_section->output_section->vma
107 		 + input_section->output_offset);
108   /* These jumps mask off the lower two bits of the current address
109      before doing pcrel calculations.  */
110   relocation -= (offset & -(bfd_vma) 4);
111 
112   if (relocation < -0x200 || relocation > 0x1ff)
113     status = bfd_reloc_overflow;
114   else
115     status = bfd_reloc_ok;
116 
117   x = bfd_get_16 (abfd, data + offset);
118   relocation >>= howto->rightshift;
119   relocation <<= howto->bitpos;
120   x = (x & ~howto->dst_mask) | (((x & howto->src_mask) + relocation) & howto->dst_mask);
121   bfd_put_16 (abfd, (bfd_vma) x, data + offset);
122 
123   return status;
124 }
125 
126 /* Handle the R_M32R_10_PCREL reloc.  */
127 
128 static bfd_reloc_status_type
m32r_elf_10_pcrel_reloc(bfd * abfd,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)129 m32r_elf_10_pcrel_reloc (bfd * abfd,
130 			 arelent * reloc_entry,
131 			 asymbol * symbol,
132 			 void * data,
133 			 asection * input_section,
134 			 bfd * output_bfd,
135 			 char ** error_message ATTRIBUTE_UNUSED)
136 {
137   /* This part is from bfd_elf_generic_reloc.  */
138   if (output_bfd != NULL
139       && (symbol->flags & BSF_SECTION_SYM) == 0
140       && (! reloc_entry->howto->partial_inplace
141 	  || reloc_entry->addend == 0))
142     {
143       reloc_entry->address += input_section->output_offset;
144       return bfd_reloc_ok;
145     }
146 
147   if (output_bfd != NULL)
148     /* FIXME: See bfd_perform_relocation.  Is this right?  */
149     return bfd_reloc_continue;
150 
151   return m32r_elf_do_10_pcrel_reloc (abfd, reloc_entry->howto,
152 				     input_section,
153 				     data, reloc_entry->address,
154 				     symbol->section,
155 				     (symbol->value
156 				      + symbol->section->output_section->vma
157 				      + symbol->section->output_offset),
158 				     reloc_entry->addend);
159 }
160 
161 /* Do generic partial_inplace relocation.
162    This is a local replacement for bfd_elf_generic_reloc.  */
163 
164 static bfd_reloc_status_type
m32r_elf_generic_reloc(bfd * input_bfd,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)165 m32r_elf_generic_reloc (bfd *input_bfd,
166 			arelent *reloc_entry,
167 			asymbol *symbol,
168 			void * data,
169 			asection *input_section,
170 			bfd *output_bfd,
171 			char **error_message ATTRIBUTE_UNUSED)
172 {
173   bfd_reloc_status_type ret;
174   bfd_vma relocation;
175   bfd_byte *inplace_address;
176 
177   /* This part is from bfd_elf_generic_reloc.
178      If we're relocating, and this an external symbol, we don't want
179      to change anything.  */
180   if (output_bfd != NULL
181       && (symbol->flags & BSF_SECTION_SYM) == 0
182       && reloc_entry->addend == 0)
183     {
184       reloc_entry->address += input_section->output_offset;
185       return bfd_reloc_ok;
186     }
187 
188   /* Now do the reloc in the usual way.
189      ??? It would be nice to call bfd_elf_generic_reloc here,
190      but we have partial_inplace set.  bfd_elf_generic_reloc will
191      pass the handling back to bfd_install_relocation which will install
192      a section relative addend which is wrong.  */
193 
194   /* Sanity check the address (offset in section).  */
195   if (reloc_entry->address > bfd_get_section_limit (input_bfd, input_section))
196     return bfd_reloc_outofrange;
197 
198   ret = bfd_reloc_ok;
199   if (bfd_is_und_section (symbol->section)
200       && output_bfd == NULL)
201     ret = bfd_reloc_undefined;
202 
203   if (bfd_is_com_section (symbol->section)
204       || output_bfd != NULL)
205     relocation = 0;
206   else
207     relocation = symbol->value;
208 
209   /* Only do this for a final link.  */
210   if (output_bfd == NULL)
211     {
212       relocation += symbol->section->output_section->vma;
213       relocation += symbol->section->output_offset;
214     }
215 
216   relocation += reloc_entry->addend;
217   inplace_address = (bfd_byte *) data + reloc_entry->address;
218 
219 #define DOIT(x) 					\
220   x = ( (x & ~reloc_entry->howto->dst_mask) | 		\
221   (((x & reloc_entry->howto->src_mask) +  relocation) &	\
222   reloc_entry->howto->dst_mask))
223 
224   switch (reloc_entry->howto->size)
225     {
226     case 1:
227       {
228 	short x = bfd_get_16 (input_bfd, inplace_address);
229 	DOIT (x);
230       	bfd_put_16 (input_bfd, (bfd_vma) x, inplace_address);
231       }
232       break;
233     case 2:
234       {
235 	unsigned long x = bfd_get_32 (input_bfd, inplace_address);
236 	DOIT (x);
237       	bfd_put_32 (input_bfd, (bfd_vma)x , inplace_address);
238       }
239       break;
240     default:
241       BFD_ASSERT (0);
242     }
243 
244   if (output_bfd != NULL)
245     reloc_entry->address += input_section->output_offset;
246 
247   return ret;
248 }
249 
250 /* Handle the R_M32R_SDA16 reloc.
251    This reloc is used to compute the address of objects in the small data area
252    and to perform loads and stores from that area.
253    The lower 16 bits are sign extended and added to the register specified
254    in the instruction, which is assumed to point to _SDA_BASE_.  */
255 
256 static bfd_reloc_status_type
m32r_elf_sda16_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol,void * data ATTRIBUTE_UNUSED,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)257 m32r_elf_sda16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
258 		      arelent *reloc_entry,
259 		      asymbol *symbol,
260 		      void * data ATTRIBUTE_UNUSED,
261 		      asection *input_section,
262 		      bfd *output_bfd,
263 		      char **error_message ATTRIBUTE_UNUSED)
264 {
265   /* This part is from bfd_elf_generic_reloc.  */
266   if (output_bfd != NULL
267       && (symbol->flags & BSF_SECTION_SYM) == 0
268       && (! reloc_entry->howto->partial_inplace
269 	  || reloc_entry->addend == 0))
270     {
271       reloc_entry->address += input_section->output_offset;
272       return bfd_reloc_ok;
273     }
274 
275   if (output_bfd != NULL)
276     /* FIXME: See bfd_perform_relocation.  Is this right?  */
277     return bfd_reloc_continue;
278 
279   /* FIXME: not sure what to do here yet.  But then again, the linker
280      may never call us.  */
281   abort ();
282 }
283 
284 
285 /* Handle the R_M32R_HI16_[SU]LO relocs.
286    HI16_SLO is for the add3 and load/store with displacement instructions.
287    HI16_ULO is for the or3 instruction.
288    For R_M32R_HI16_SLO, the lower 16 bits are sign extended when added to
289    the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
290    we must add one to the high 16 bytes (which will get subtracted off when
291    the low 16 bits are added).
292    These relocs have to be done in combination with an R_M32R_LO16 reloc
293    because there is a carry from the LO16 to the HI16.  Here we just save
294    the information we need; we do the actual relocation when we see the LO16.
295    This code is copied from the elf32-mips.c.  We also support an arbitrary
296    number of HI16 relocs to be associated with a single LO16 reloc.  The
297    assembler sorts the relocs to ensure each HI16 immediately precedes its
298    LO16.  However if there are multiple copies, the assembler may not find
299    the real LO16 so it picks the first one it finds.  */
300 
301 struct m32r_hi16
302 {
303   struct m32r_hi16 *next;
304   bfd_byte *addr;
305   bfd_vma addend;
306 };
307 
308 /* FIXME: This should not be a static variable.  */
309 
310 static struct m32r_hi16 *m32r_hi16_list;
311 
312 static bfd_reloc_status_type
m32r_elf_hi16_reloc(bfd * abfd ATTRIBUTE_UNUSED,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message ATTRIBUTE_UNUSED)313 m32r_elf_hi16_reloc (bfd *abfd ATTRIBUTE_UNUSED,
314 		     arelent *reloc_entry,
315 		     asymbol *symbol,
316 		     void * data,
317 		     asection *input_section,
318 		     bfd *output_bfd,
319 		     char **error_message ATTRIBUTE_UNUSED)
320 {
321   bfd_reloc_status_type ret;
322   bfd_vma relocation;
323   struct m32r_hi16 *n;
324 
325   /* This part is from bfd_elf_generic_reloc.
326      If we're relocating, and this an external symbol, we don't want
327      to change anything.  */
328   if (output_bfd != NULL
329       && (symbol->flags & BSF_SECTION_SYM) == 0
330       && reloc_entry->addend == 0)
331     {
332       reloc_entry->address += input_section->output_offset;
333       return bfd_reloc_ok;
334     }
335 
336   /* Sanity check the address (offset in section).  */
337   if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
338     return bfd_reloc_outofrange;
339 
340   ret = bfd_reloc_ok;
341   if (bfd_is_und_section (symbol->section)
342       && output_bfd == NULL)
343     ret = bfd_reloc_undefined;
344 
345   if (bfd_is_com_section (symbol->section))
346     relocation = 0;
347   else
348     relocation = symbol->value;
349 
350   relocation += symbol->section->output_section->vma;
351   relocation += symbol->section->output_offset;
352   relocation += reloc_entry->addend;
353 
354   /* Save the information, and let LO16 do the actual relocation.  */
355   n = bfd_malloc ((bfd_size_type) sizeof *n);
356   if (n == NULL)
357     return bfd_reloc_outofrange;
358   n->addr = (bfd_byte *) data + reloc_entry->address;
359   n->addend = relocation;
360   n->next = m32r_hi16_list;
361   m32r_hi16_list = n;
362 
363   if (output_bfd != NULL)
364     reloc_entry->address += input_section->output_offset;
365 
366   return ret;
367 }
368 
369 /* Handle an M32R ELF HI16 reloc.  */
370 
371 static void
m32r_elf_relocate_hi16(bfd * input_bfd,int type,Elf_Internal_Rela * relhi,Elf_Internal_Rela * rello,bfd_byte * contents,bfd_vma addend)372 m32r_elf_relocate_hi16 (bfd *input_bfd,
373 			int type,
374 			Elf_Internal_Rela *relhi,
375 			Elf_Internal_Rela *rello,
376 			bfd_byte *contents,
377 			bfd_vma addend)
378 {
379   unsigned long insn;
380   bfd_vma addlo;
381 
382   insn = bfd_get_32 (input_bfd, contents + relhi->r_offset);
383 
384   addlo = bfd_get_32 (input_bfd, contents + rello->r_offset);
385   if (type == R_M32R_HI16_SLO)
386     addlo = ((addlo & 0xffff) ^ 0x8000) - 0x8000;
387   else
388     addlo &= 0xffff;
389 
390   addend += ((insn & 0xffff) << 16) + addlo;
391 
392   /* Reaccount for sign extension of low part.  */
393   if (type == R_M32R_HI16_SLO
394       && (addend & 0x8000) != 0)
395     addend += 0x10000;
396 
397   bfd_put_32 (input_bfd,
398 	      (insn & 0xffff0000) | ((addend >> 16) & 0xffff),
399 	      contents + relhi->r_offset);
400 }
401 
402 /* Do an R_M32R_LO16 relocation.  This is a straightforward 16 bit
403    inplace relocation; this function exists in order to do the
404    R_M32R_HI16_[SU]LO relocation described above.  */
405 
406 static bfd_reloc_status_type
m32r_elf_lo16_reloc(bfd * input_bfd,arelent * reloc_entry,asymbol * symbol,void * data,asection * input_section,bfd * output_bfd,char ** error_message)407 m32r_elf_lo16_reloc (bfd *input_bfd,
408 		     arelent *reloc_entry,
409 		     asymbol *symbol,
410 		     void * data,
411 		     asection *input_section,
412 		     bfd *output_bfd,
413 		     char **error_message)
414 {
415   /* This part is from bfd_elf_generic_reloc.
416      If we're relocating, and this an external symbol, we don't want
417      to change anything.  */
418   if (output_bfd != NULL
419       && (symbol->flags & BSF_SECTION_SYM) == 0
420       && reloc_entry->addend == 0)
421     {
422       reloc_entry->address += input_section->output_offset;
423       return bfd_reloc_ok;
424     }
425 
426   if (m32r_hi16_list != NULL)
427     {
428       struct m32r_hi16 *l;
429 
430       l = m32r_hi16_list;
431       while (l != NULL)
432 	{
433 	  unsigned long insn;
434 	  unsigned long val;
435 	  unsigned long vallo;
436 	  struct m32r_hi16 *next;
437 
438 	  /* Do the HI16 relocation.  Note that we actually don't need
439 	     to know anything about the LO16 itself, except where to
440 	     find the low 16 bits of the addend needed by the LO16.  */
441 	  insn = bfd_get_32 (input_bfd, l->addr);
442 	  vallo = ((bfd_get_32 (input_bfd, (bfd_byte *) data + reloc_entry->address)
443 		   & 0xffff) ^ 0x8000) - 0x8000;
444 	  val = ((insn & 0xffff) << 16) + vallo;
445 	  val += l->addend;
446 
447 	  /* Reaccount for sign extension of low part.  */
448 	  if ((val & 0x8000) != 0)
449 	    val += 0x10000;
450 
451 	  insn = (insn &~ (bfd_vma) 0xffff) | ((val >> 16) & 0xffff);
452 	  bfd_put_32 (input_bfd, (bfd_vma) insn, l->addr);
453 
454 	  next = l->next;
455 	  free (l);
456 	  l = next;
457 	}
458 
459       m32r_hi16_list = NULL;
460     }
461 
462   /* Now do the LO16 reloc in the usual way.
463      ??? It would be nice to call bfd_elf_generic_reloc here,
464      but we have partial_inplace set.  bfd_elf_generic_reloc will
465      pass the handling back to bfd_install_relocation which will install
466      a section relative addend which is wrong.  */
467   return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
468 				input_section, output_bfd, error_message);
469 }
470 
471 
472 static reloc_howto_type m32r_elf_howto_table[] =
473 {
474   /* This reloc does nothing.  */
475   HOWTO (R_M32R_NONE,		/* type */
476 	 0,			/* rightshift */
477 	 3,			/* size (0 = byte, 1 = short, 2 = long) */
478 	 0,			/* bitsize */
479 	 FALSE,			/* pc_relative */
480 	 0,			/* bitpos */
481 	 complain_overflow_dont, /* complain_on_overflow */
482 	 bfd_elf_generic_reloc,	/* special_function */
483 	 "R_M32R_NONE",		/* name */
484 	 FALSE,			/* partial_inplace */
485 	 0,			/* src_mask */
486 	 0,			/* dst_mask */
487 	 FALSE),		/* pcrel_offset */
488 
489   /* A 16 bit absolute relocation.  */
490   HOWTO (R_M32R_16,		/* type */
491 	 0,			/* rightshift */
492 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
493 	 16,			/* bitsize */
494 	 FALSE,			/* pc_relative */
495 	 0,			/* bitpos */
496 	 complain_overflow_bitfield, /* complain_on_overflow */
497 	 m32r_elf_generic_reloc,/* special_function */
498 	 "R_M32R_16",		/* name */
499 	 TRUE,			/* partial_inplace */
500 	 0xffff,		/* src_mask */
501 	 0xffff,		/* dst_mask */
502 	 FALSE),		/* pcrel_offset */
503 
504   /* A 32 bit absolute relocation.  */
505   HOWTO (R_M32R_32,		/* type */
506 	 0,			/* rightshift */
507 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
508 	 32,			/* bitsize */
509 	 FALSE,			/* pc_relative */
510 	 0,			/* bitpos */
511 	 complain_overflow_bitfield, /* complain_on_overflow */
512 	 m32r_elf_generic_reloc,/* special_function */
513 	 "R_M32R_32",		/* name */
514 	 TRUE,			/* partial_inplace */
515 	 0xffffffff,		/* src_mask */
516 	 0xffffffff,		/* dst_mask */
517 	 FALSE),		/* pcrel_offset */
518 
519   /* A 24 bit address.  */
520   HOWTO (R_M32R_24,		/* type */
521 	 0,			/* rightshift */
522 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
523 	 24,			/* bitsize */
524 	 FALSE,			/* pc_relative */
525 	 0,			/* bitpos */
526 	 complain_overflow_unsigned, /* complain_on_overflow */
527 	 m32r_elf_generic_reloc,/* special_function */
528 	 "R_M32R_24",		/* name */
529 	 TRUE,			/* partial_inplace */
530 	 0xffffff,		/* src_mask */
531 	 0xffffff,		/* dst_mask */
532 	 FALSE),		/* pcrel_offset */
533 
534   /* An PC Relative 10-bit relocation, shifted by 2.
535      This reloc is complicated because relocations are relative to pc & -4.
536      i.e. branches in the right insn slot use the address of the left insn
537      slot for pc.  */
538   /* ??? It's not clear whether this should have partial_inplace set or not.
539      Branch relaxing in the assembler can store the addend in the insn,
540      and if bfd_install_relocation gets called the addend may get added
541      again.  */
542   HOWTO (R_M32R_10_PCREL,	/* type */
543 	 2,	                /* rightshift */
544 	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
545 	 10,	                /* bitsize */
546 	 TRUE,	                /* pc_relative */
547 	 0,	                /* bitpos */
548 	 complain_overflow_signed, /* complain_on_overflow */
549 	 m32r_elf_10_pcrel_reloc, /* special_function */
550 	 "R_M32R_10_PCREL",	/* name */
551 	 FALSE,	                /* partial_inplace */
552 	 0xff,		        /* src_mask */
553 	 0xff,   		/* dst_mask */
554 	 TRUE),			/* pcrel_offset */
555 
556   /* A relative 18 bit relocation, right shifted by 2.  */
557   HOWTO (R_M32R_18_PCREL,	/* type */
558 	 2,			/* rightshift */
559 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
560 	 16,			/* bitsize */
561 	 TRUE,			/* pc_relative */
562 	 0,			/* bitpos */
563 	 complain_overflow_signed, /* complain_on_overflow */
564 	 bfd_elf_generic_reloc,	/* special_function */
565 	 "R_M32R_18_PCREL",	/* name */
566 	 FALSE,			/* partial_inplace */
567 	 0xffff,		/* src_mask */
568 	 0xffff,		/* dst_mask */
569 	 TRUE),			/* pcrel_offset */
570 
571   /* A relative 26 bit relocation, right shifted by 2.  */
572   /* ??? It's not clear whether this should have partial_inplace set or not.
573      Branch relaxing in the assembler can store the addend in the insn,
574      and if bfd_install_relocation gets called the addend may get added
575      again.  */
576   HOWTO (R_M32R_26_PCREL,	/* type */
577 	 2,			/* rightshift */
578 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
579 	 26,			/* bitsize */
580 	 TRUE,			/* pc_relative */
581 	 0,			/* bitpos */
582 	 complain_overflow_signed, /* complain_on_overflow */
583 	 bfd_elf_generic_reloc,	/* special_function */
584 	 "R_M32R_26_PCREL",	/* name */
585 	 FALSE,			/* partial_inplace */
586 	 0xffffff,		/* src_mask */
587 	 0xffffff,		/* dst_mask */
588 	 TRUE),			/* pcrel_offset */
589 
590   /* High 16 bits of address when lower 16 is or'd in.  */
591   HOWTO (R_M32R_HI16_ULO,	/* type */
592 	 16,			/* rightshift */
593 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
594 	 16,			/* bitsize */
595 	 FALSE,			/* pc_relative */
596 	 0,			/* bitpos */
597 	 complain_overflow_dont, /* complain_on_overflow */
598 	 m32r_elf_hi16_reloc,	/* special_function */
599 	 "R_M32R_HI16_ULO",	/* name */
600 	 TRUE,			/* partial_inplace */
601 	 0x0000ffff,		/* src_mask */
602 	 0x0000ffff,		/* dst_mask */
603 	 FALSE),		/* pcrel_offset */
604 
605   /* High 16 bits of address when lower 16 is added in.  */
606   HOWTO (R_M32R_HI16_SLO,	/* type */
607 	 16,			/* rightshift */
608 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
609 	 16,			/* bitsize */
610 	 FALSE,			/* pc_relative */
611 	 0,			/* bitpos */
612 	 complain_overflow_dont, /* complain_on_overflow */
613 	 m32r_elf_hi16_reloc,	/* special_function */
614 	 "R_M32R_HI16_SLO",	/* name */
615 	 TRUE,			/* partial_inplace */
616 	 0x0000ffff,		/* src_mask */
617 	 0x0000ffff,		/* dst_mask */
618 	 FALSE),		/* pcrel_offset */
619 
620   /* Lower 16 bits of address.  */
621   HOWTO (R_M32R_LO16,		/* type */
622 	 0,			/* rightshift */
623 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
624 	 16,			/* bitsize */
625 	 FALSE,			/* pc_relative */
626 	 0,			/* bitpos */
627 	 complain_overflow_dont, /* complain_on_overflow */
628 	 m32r_elf_lo16_reloc,	/* special_function */
629 	 "R_M32R_LO16",		/* name */
630 	 TRUE,			/* partial_inplace */
631 	 0x0000ffff,		/* src_mask */
632 	 0x0000ffff,		/* dst_mask */
633 	 FALSE),		/* pcrel_offset */
634 
635   /* Small data area 16 bits offset.  */
636   HOWTO (R_M32R_SDA16,		/* type */
637 	 0,			/* rightshift */
638 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
639 	 16,			/* bitsize */
640 	 FALSE,			/* pc_relative */
641 	 0,			/* bitpos */
642 	 complain_overflow_signed, /* complain_on_overflow */
643 	 m32r_elf_sda16_reloc,	/* special_function */
644 	 "R_M32R_SDA16",	/* name */
645 	 TRUE,			/* partial_inplace */  /* FIXME: correct? */
646 	 0x0000ffff,		/* src_mask */
647 	 0x0000ffff,		/* dst_mask */
648 	 FALSE),		/* pcrel_offset */
649 
650   /* GNU extension to record C++ vtable hierarchy.  */
651   HOWTO (R_M32R_GNU_VTINHERIT, /* type */
652          0,                     /* rightshift */
653          2,                     /* size (0 = byte, 1 = short, 2 = long) */
654          0,                     /* bitsize */
655          FALSE,                 /* pc_relative */
656          0,                     /* bitpos */
657          complain_overflow_dont, /* complain_on_overflow */
658          NULL,                  /* special_function */
659          "R_M32R_GNU_VTINHERIT", /* name */
660          FALSE,                 /* partial_inplace */
661          0,                     /* src_mask */
662          0,                     /* dst_mask */
663          FALSE),                /* pcrel_offset */
664 
665   /* GNU extension to record C++ vtable member usage.  */
666   HOWTO (R_M32R_GNU_VTENTRY,     /* type */
667          0,                     /* rightshift */
668          2,                     /* size (0 = byte, 1 = short, 2 = long) */
669          0,                     /* bitsize */
670          FALSE,                 /* pc_relative */
671          0,                     /* bitpos */
672          complain_overflow_dont, /* complain_on_overflow */
673          _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
674          "R_M32R_GNU_VTENTRY",   /* name */
675          FALSE,                 /* partial_inplace */
676          0,                     /* src_mask */
677          0,                     /* dst_mask */
678          FALSE),                /* pcrel_offset */
679 
680   EMPTY_HOWTO (13),
681   EMPTY_HOWTO (14),
682   EMPTY_HOWTO (15),
683   EMPTY_HOWTO (16),
684   EMPTY_HOWTO (17),
685   EMPTY_HOWTO (18),
686   EMPTY_HOWTO (19),
687   EMPTY_HOWTO (20),
688   EMPTY_HOWTO (21),
689   EMPTY_HOWTO (22),
690   EMPTY_HOWTO (23),
691   EMPTY_HOWTO (24),
692   EMPTY_HOWTO (25),
693   EMPTY_HOWTO (26),
694   EMPTY_HOWTO (27),
695   EMPTY_HOWTO (28),
696   EMPTY_HOWTO (29),
697   EMPTY_HOWTO (30),
698   EMPTY_HOWTO (31),
699   EMPTY_HOWTO (32),
700 
701   /* A 16 bit absolute relocation.  */
702   HOWTO (R_M32R_16_RELA,	/* type */
703 	 0,			/* rightshift */
704 	 1,			/* size (0 = byte, 1 = short, 2 = long) */
705 	 16,			/* bitsize */
706 	 FALSE,			/* pc_relative */
707 	 0,			/* bitpos */
708 	 complain_overflow_bitfield, /* complain_on_overflow */
709 	 bfd_elf_generic_reloc,	/* special_function */
710 	 "R_M32R_16_RELA",	/* name */
711 	 FALSE,			/* partial_inplace */
712 	 0xffff,		/* src_mask */
713 	 0xffff,		/* dst_mask */
714 	 FALSE),		/* pcrel_offset */
715 
716   /* A 32 bit absolute relocation.  */
717   HOWTO (R_M32R_32_RELA,	/* type */
718 	 0,			/* rightshift */
719 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
720 	 32,			/* bitsize */
721 	 FALSE,			/* pc_relative */
722 	 0,			/* bitpos */
723 	 complain_overflow_bitfield, /* complain_on_overflow */
724 	 bfd_elf_generic_reloc,/* special_function */
725 	 "R_M32R_32_RELA",		/* name */
726 	 FALSE,			/* partial_inplace */
727 	 0xffffffff,		/* src_mask */
728 	 0xffffffff,		/* dst_mask */
729 	 FALSE),		/* pcrel_offset */
730 
731   /* A 24 bit address.  */
732   HOWTO (R_M32R_24_RELA,	/* type */
733 	 0,			/* rightshift */
734 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
735 	 24,			/* bitsize */
736 	 FALSE,			/* pc_relative */
737 	 0,			/* bitpos */
738 	 complain_overflow_unsigned, /* complain_on_overflow */
739 	 bfd_elf_generic_reloc,/* special_function */
740 	 "R_M32R_24_RELA",	/* name */
741 	 FALSE,			/* partial_inplace */
742 	 0xffffff,		/* src_mask */
743 	 0xffffff,		/* dst_mask */
744 	 FALSE),		/* pcrel_offset */
745 
746   HOWTO (R_M32R_10_PCREL_RELA,	/* type */
747 	 2,	                /* rightshift */
748 	 1,	                /* size (0 = byte, 1 = short, 2 = long) */
749 	 10,	                /* bitsize */
750 	 TRUE,	                /* pc_relative */
751 	 0,	                /* bitpos */
752 	 complain_overflow_signed, /* complain_on_overflow */
753 	 m32r_elf_10_pcrel_reloc, /* special_function */
754 	 "R_M32R_10_PCREL_RELA",/* name */
755 	 FALSE,	                /* partial_inplace */
756 	 0xff,		        /* src_mask */
757 	 0xff,   		/* dst_mask */
758 	 TRUE),			/* pcrel_offset */
759 
760   /* A relative 18 bit relocation, right shifted by 2.  */
761   HOWTO (R_M32R_18_PCREL_RELA,	/* type */
762 	 2,			/* rightshift */
763 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
764 	 16,			/* bitsize */
765 	 TRUE,			/* pc_relative */
766 	 0,			/* bitpos */
767 	 complain_overflow_signed, /* complain_on_overflow */
768 	 bfd_elf_generic_reloc,	/* special_function */
769 	 "R_M32R_18_PCREL_RELA",/* name */
770 	 FALSE,			/* partial_inplace */
771 	 0xffff,		/* src_mask */
772 	 0xffff,		/* dst_mask */
773 	 TRUE),			/* pcrel_offset */
774 
775   /* A relative 26 bit relocation, right shifted by 2.  */
776   HOWTO (R_M32R_26_PCREL_RELA,	/* type */
777 	 2,			/* rightshift */
778 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
779 	 26,			/* bitsize */
780 	 TRUE,			/* pc_relative */
781 	 0,			/* bitpos */
782 	 complain_overflow_signed, /* complain_on_overflow */
783 	 bfd_elf_generic_reloc,	/* special_function */
784 	 "R_M32R_26_PCREL_RELA",/* name */
785 	 FALSE,			/* partial_inplace */
786 	 0xffffff,		/* src_mask */
787 	 0xffffff,		/* dst_mask */
788 	 TRUE),			/* pcrel_offset */
789 
790   /* High 16 bits of address when lower 16 is or'd in.  */
791   HOWTO (R_M32R_HI16_ULO_RELA,	/* type */
792 	 16,			/* rightshift */
793 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
794 	 16,			/* bitsize */
795 	 FALSE,			/* pc_relative */
796 	 0,			/* bitpos */
797 	 complain_overflow_dont, /* complain_on_overflow */
798 	 bfd_elf_generic_reloc,	/* special_function */
799 	 "R_M32R_HI16_ULO_RELA",/* name */
800 	 FALSE,			/* partial_inplace */
801 	 0x0000ffff,		/* src_mask */
802 	 0x0000ffff,		/* dst_mask */
803 	 FALSE),		/* pcrel_offset */
804 
805   /* High 16 bits of address when lower 16 is added in.  */
806   HOWTO (R_M32R_HI16_SLO_RELA,	/* type */
807 	 16,			/* rightshift */
808 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
809 	 16,			/* bitsize */
810 	 FALSE,			/* pc_relative */
811 	 0,			/* bitpos */
812 	 complain_overflow_dont, /* complain_on_overflow */
813 	 bfd_elf_generic_reloc,	/* special_function */
814 	 "R_M32R_HI16_SLO_RELA",/* name */
815 	 FALSE,			/* partial_inplace */
816 	 0x0000ffff,		/* src_mask */
817 	 0x0000ffff,		/* dst_mask */
818 	 FALSE),		/* pcrel_offset */
819 
820   /* Lower 16 bits of address.  */
821   HOWTO (R_M32R_LO16_RELA,	/* type */
822 	 0,			/* rightshift */
823 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
824 	 16,			/* bitsize */
825 	 FALSE,			/* pc_relative */
826 	 0,			/* bitpos */
827 	 complain_overflow_dont, /* complain_on_overflow */
828 	 bfd_elf_generic_reloc,	/* special_function */
829 	 "R_M32R_LO16_RELA",	/* name */
830 	 FALSE,			/* partial_inplace */
831 	 0x0000ffff,		/* src_mask */
832 	 0x0000ffff,		/* dst_mask */
833 	 FALSE),		/* pcrel_offset */
834 
835   /* Small data area 16 bits offset.  */
836   HOWTO (R_M32R_SDA16_RELA,	/* type */
837 	 0,			/* rightshift */
838 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
839 	 16,			/* bitsize */
840 	 FALSE,			/* pc_relative */
841 	 0,			/* bitpos */
842 	 complain_overflow_signed, /* complain_on_overflow */
843 	 bfd_elf_generic_reloc,	/* special_function */
844 	 "R_M32R_SDA16_RELA",	/* name */
845 	 TRUE,			/* partial_inplace */  /* FIXME: correct? */
846 	 0x0000ffff,		/* src_mask */
847 	 0x0000ffff,		/* dst_mask */
848 	 FALSE),		/* pcrel_offset */
849 
850   /* GNU extension to record C++ vtable hierarchy.  */
851   HOWTO (R_M32R_RELA_GNU_VTINHERIT, /* type */
852          0,                     /* rightshift */
853          2,                     /* size (0 = byte, 1 = short, 2 = long) */
854          0,                     /* bitsize */
855          FALSE,                 /* pc_relative */
856          0,                     /* bitpos */
857          complain_overflow_dont, /* complain_on_overflow */
858          NULL,                  /* special_function */
859          "R_M32R_RELA_GNU_VTINHERIT", /* name */
860          FALSE,                 /* partial_inplace */
861          0,                     /* src_mask */
862          0,                     /* dst_mask */
863          FALSE),                /* pcrel_offset */
864 
865   /* GNU extension to record C++ vtable member usage.  */
866   HOWTO (R_M32R_RELA_GNU_VTENTRY,     /* type */
867          0,                     /* rightshift */
868          2,                     /* size (0 = byte, 1 = short, 2 = long) */
869          0,                     /* bitsize */
870          FALSE,                 /* pc_relative */
871          0,                     /* bitpos */
872          complain_overflow_dont, /* complain_on_overflow */
873          _bfd_elf_rel_vtable_reloc_fn,  /* special_function */
874          "R_M32R_RELA_GNU_VTENTRY",   /* name */
875          FALSE,                 /* partial_inplace */
876          0,                     /* src_mask */
877          0,                     /* dst_mask */
878          FALSE),                /* pcrel_offset */
879 
880   /* A 32 bit PC relative relocation.  */
881   HOWTO (R_M32R_REL32,		/* type */
882 	 0,			/* rightshift */
883 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
884 	 32,			/* bitsize */
885 	 TRUE,			/* pc_relative */
886 	 0,			/* bitpos */
887 	 complain_overflow_bitfield, /* complain_on_overflow */
888 	 bfd_elf_generic_reloc,/* special_function */
889 	 "R_M32R_REL32",		/* name */
890 	 FALSE,			/* partial_inplace */
891 	 0xffffffff,		/* src_mask */
892 	 0xffffffff,		/* dst_mask */
893 	 TRUE),			/* pcrel_offset */
894 
895   EMPTY_HOWTO (46),
896   EMPTY_HOWTO (47),
897 
898   /* Like R_M32R_24, but referring to the GOT table entry for
899      the symbol.  */
900   HOWTO (R_M32R_GOT24,		/* type */
901 	 0,			/* rightshift */
902 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
903 	 24,			/* bitsize */
904 	 FALSE,			/* pc_relative */
905 	 0,			/* bitpos */
906 	 complain_overflow_unsigned, /* complain_on_overflow */
907 	 bfd_elf_generic_reloc, /* special_function */
908 	 "R_M32R_GOT24",	/* name */
909 	 FALSE,			/* partial_inplace */
910 	 0xffffff,		/* src_mask */
911 	 0xffffff,		/* dst_mask */
912 	 FALSE),		/* pcrel_offset */
913 
914   /* Like R_M32R_PCREL, but referring to the procedure linkage table
915      entry for the symbol.  */
916   HOWTO (R_M32R_26_PLTREL,	/* type */
917 	 2,			/* rightshift */
918 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
919 	 24,			/* bitsize */
920 	 TRUE,			/* pc_relative */
921 	 0,			/* bitpos */
922 	 complain_overflow_signed, /* complain_on_overflow */
923 	 bfd_elf_generic_reloc,	/* special_function */
924 	 "R_M32R_26_PLTREL",	/* name */
925 	 FALSE,			/* partial_inplace */
926 	 0xffffff,		/* src_mask */
927 	 0xffffff,		/* dst_mask */
928 	 TRUE),			/* pcrel_offset */
929 
930   /* This is used only by the dynamic linker.  The symbol should exist
931      both in the object being run and in some shared library.  The
932      dynamic linker copies the data addressed by the symbol from the
933      shared library into the object, because the object being
934      run has to have the data at some particular address.  */
935   HOWTO (R_M32R_COPY,		/* type */
936 	 0,			/* rightshift */
937 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
938 	 32,			/* bitsize */
939 	 FALSE,			/* pc_relative */
940 	 0,			/* bitpos */
941 	 complain_overflow_bitfield, /* complain_on_overflow */
942 	 bfd_elf_generic_reloc, /* special_function */
943 	 "R_M32R_COPY",		/* name */
944 	 FALSE,			/* partial_inplace */
945 	 0xffffffff,		/* src_mask */
946 	 0xffffffff,		/* dst_mask */
947 	 FALSE),		/* pcrel_offset */
948 
949   /* Like R_M32R_24, but used when setting global offset table
950      entries.  */
951   HOWTO (R_M32R_GLOB_DAT,	/* type */
952 	 0,			/* rightshift */
953 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
954 	 32,			/* bitsize */
955 	 FALSE,			/* pc_relative */
956 	 0,			/* bitpos */
957 	 complain_overflow_bitfield, /* complain_on_overflow */
958 	 bfd_elf_generic_reloc, /* special_function */
959 	 "R_M32R_GLOB_DAT",	/* name */
960 	 FALSE,			/* partial_inplace */
961 	 0xffffffff,		/* src_mask */
962 	 0xffffffff,		/* dst_mask */
963 	 FALSE),		/* pcrel_offset */
964 
965   /* Marks a procedure linkage table entry for a symbol.  */
966   HOWTO (R_M32R_JMP_SLOT,	/* type */
967 	 0,			/* rightshift */
968 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
969 	 32,			/* bitsize */
970 	 FALSE,			/* pc_relative */
971 	 0,			/* bitpos */
972 	 complain_overflow_bitfield, /* complain_on_overflow */
973 	 bfd_elf_generic_reloc, /* special_function */
974 	 "R_M32R_JMP_SLOT",	/* name */
975 	 FALSE,			/* partial_inplace */
976 	 0xffffffff,		/* src_mask */
977 	 0xffffffff,		/* dst_mask */
978 	 FALSE),		/* pcrel_offset */
979 
980   /* Used only by the dynamic linker.  When the object is run, this
981      longword is set to the load address of the object, plus the
982      addend.  */
983   HOWTO (R_M32R_RELATIVE,	/* type */
984 	 0,			/* rightshift */
985 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
986 	 32,			/* bitsize */
987 	 FALSE,			/* pc_relative */
988 	 0,			/* bitpos */
989 	 complain_overflow_bitfield, /* complain_on_overflow */
990 	 bfd_elf_generic_reloc, /* special_function */
991 	 "R_M32R_RELATIVE",	/* name */
992 	 FALSE,			/* partial_inplace */
993 	 0xffffffff,		/* src_mask */
994 	 0xffffffff,		/* dst_mask */
995 	 FALSE),		/* pcrel_offset */
996 
997   HOWTO (R_M32R_GOTOFF,		/* type */
998 	 0,			/* rightshift */
999 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1000 	 24,			/* bitsize */
1001 	 FALSE,			/* pc_relative */
1002 	 0,			/* bitpos */
1003 	 complain_overflow_bitfield, /* complain_on_overflow */
1004 	 bfd_elf_generic_reloc, /* special_function */
1005 	 "R_M32R_GOTOFF",	/* name */
1006 	 FALSE,			/* partial_inplace */
1007 	 0xffffff,		/* src_mask */
1008 	 0xffffff,		/* dst_mask */
1009 	 FALSE),		/* pcrel_offset */
1010 
1011   /* An PC Relative 24-bit relocation used when setting PIC offset
1012      table register. */
1013   HOWTO (R_M32R_GOTPC24,	/* type */
1014 	 0,			/* rightshift */
1015 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1016 	 24,			/* bitsize */
1017 	 TRUE,			/* pc_relative */
1018 	 0,			/* bitpos */
1019 	 complain_overflow_unsigned, /* complain_on_overflow */
1020 	 bfd_elf_generic_reloc, /* special_function */
1021 	 "R_M32R_GOTPC24",	/* name */
1022 	 FALSE,			/* partial_inplace */
1023 	 0xffffff,		/* src_mask */
1024 	 0xffffff,		/* dst_mask */
1025 	 TRUE),			/* pcrel_offset */
1026 
1027   /* Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1028      the symbol.  */
1029   HOWTO (R_M32R_GOT16_HI_ULO,	/* type */
1030 	 16,			/* rightshift */
1031 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1032 	 16,			/* bitsize */
1033 	 FALSE,			/* pc_relative */
1034 	 0,			/* bitpos */
1035 	 complain_overflow_dont, /* complain_on_overflow */
1036 	 bfd_elf_generic_reloc,	/* special_function */
1037 	 "R_M32R_GOT16_HI_ULO",	/* name */
1038 	 FALSE,			/* partial_inplace */
1039 	 0x0000ffff,		/* src_mask */
1040 	 0x0000ffff,		/* dst_mask */
1041 	 FALSE),		/* pcrel_offset */
1042 
1043   /* Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1044      the symbol.  */
1045   HOWTO (R_M32R_GOT16_HI_SLO,	/* type */
1046 	 16,			/* rightshift */
1047 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1048 	 16,			/* bitsize */
1049 	 FALSE,			/* pc_relative */
1050 	 0,			/* bitpos */
1051 	 complain_overflow_dont, /* complain_on_overflow */
1052 	 bfd_elf_generic_reloc,	/* special_function */
1053 	 "R_M32R_GOT16_HI_SLO",	/* name */
1054 	 FALSE,			/* partial_inplace */
1055 	 0x0000ffff,		/* src_mask */
1056 	 0x0000ffff,		/* dst_mask */
1057 	 FALSE),		/* pcrel_offset */
1058 
1059   /* Like R_M32R_LO16, but referring to the GOT table entry for
1060      the symbol.  */
1061   HOWTO (R_M32R_GOT16_LO,	/* type */
1062 	 0,			/* rightshift */
1063 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1064 	 16,			/* bitsize */
1065 	 FALSE,			/* pc_relative */
1066 	 0,			/* bitpos */
1067 	 complain_overflow_dont, /* complain_on_overflow */
1068 	 bfd_elf_generic_reloc,	/* special_function */
1069 	 "R_M32R_GOT16_LO",	/* name */
1070 	 FALSE,			/* partial_inplace */
1071 	 0x0000ffff,		/* src_mask */
1072 	 0x0000ffff,		/* dst_mask */
1073 	 FALSE),		/* pcrel_offset */
1074 
1075   /* An PC Relative relocation used when setting PIC offset table register.
1076      Like R_M32R_HI16_ULO, but referring to the GOT table entry for
1077      the symbol.  */
1078   HOWTO (R_M32R_GOTPC_HI_ULO,	/* type */
1079 	 16,			/* rightshift */
1080 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1081 	 16,			/* bitsize */
1082 	 FALSE,			/* pc_relative */
1083 	 0,			/* bitpos */
1084 	 complain_overflow_dont, /* complain_on_overflow */
1085 	 bfd_elf_generic_reloc,	/* special_function */
1086 	 "R_M32R_GOTPC_HI_ULO",	/* name */
1087 	 FALSE,			/* partial_inplace */
1088 	 0x0000ffff,		/* src_mask */
1089 	 0x0000ffff,		/* dst_mask */
1090 	 TRUE),			/* pcrel_offset */
1091 
1092   /* An PC Relative relocation used when setting PIC offset table register.
1093      Like R_M32R_HI16_SLO, but referring to the GOT table entry for
1094      the symbol.  */
1095   HOWTO (R_M32R_GOTPC_HI_SLO,	/* type */
1096 	 16,			/* rightshift */
1097 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1098 	 16,			/* bitsize */
1099 	 FALSE,			/* pc_relative */
1100 	 0,			/* bitpos */
1101 	 complain_overflow_dont, /* complain_on_overflow */
1102 	 bfd_elf_generic_reloc,	/* special_function */
1103 	 "R_M32R_GOTPC_HI_SLO",	/* name */
1104 	 FALSE,			/* partial_inplace */
1105 	 0x0000ffff,		/* src_mask */
1106 	 0x0000ffff,		/* dst_mask */
1107 	 TRUE),			/* pcrel_offset */
1108 
1109   /* An PC Relative relocation used when setting PIC offset table register.
1110      Like R_M32R_LO16, but referring to the GOT table entry for
1111      the symbol.  */
1112   HOWTO (R_M32R_GOTPC_LO,	/* type */
1113 	 0,			/* rightshift */
1114 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1115 	 16,			/* bitsize */
1116 	 FALSE,			/* pc_relative */
1117 	 0,			/* bitpos */
1118 	 complain_overflow_dont, /* complain_on_overflow */
1119 	 bfd_elf_generic_reloc,	/* special_function */
1120 	 "R_M32R_GOTPC_LO",	/* name */
1121 	 FALSE,			/* partial_inplace */
1122 	 0x0000ffff,		/* src_mask */
1123 	 0x0000ffff,		/* dst_mask */
1124 	 TRUE),			/* pcrel_offset */
1125 
1126   HOWTO (R_M32R_GOTOFF_HI_ULO,	/* type */
1127 	 16,			/* rightshift */
1128 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1129 	 16,			/* bitsize */
1130 	 FALSE,			/* pc_relative */
1131 	 0,			/* bitpos */
1132 	 complain_overflow_dont, /* complain_on_overflow */
1133 	 bfd_elf_generic_reloc,	/* special_function */
1134 	 "R_M32R_GOTOFF_HI_ULO",/* name */
1135 	 FALSE,			/* partial_inplace */
1136 	 0x0000ffff,		/* src_mask */
1137 	 0x0000ffff,		/* dst_mask */
1138 	 FALSE),		/* pcrel_offset */
1139 
1140   HOWTO (R_M32R_GOTOFF_HI_SLO,	/* type */
1141 	 16,			/* rightshift */
1142 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1143 	 16,			/* bitsize */
1144 	 FALSE,			/* pc_relative */
1145 	 0,			/* bitpos */
1146 	 complain_overflow_dont, /* complain_on_overflow */
1147 	 bfd_elf_generic_reloc,	/* special_function */
1148 	 "R_M32R_GOTOFF_HI_SLO",/* name */
1149 	 FALSE,			/* partial_inplace */
1150 	 0x0000ffff,		/* src_mask */
1151 	 0x0000ffff,		/* dst_mask */
1152 	 FALSE),		/* pcrel_offset */
1153 
1154   HOWTO (R_M32R_GOTOFF_LO,	/* type */
1155 	 0,			/* rightshift */
1156 	 2,			/* size (0 = byte, 1 = short, 2 = long) */
1157 	 16,			/* bitsize */
1158 	 FALSE,			/* pc_relative */
1159 	 0,			/* bitpos */
1160 	 complain_overflow_dont, /* complain_on_overflow */
1161 	 bfd_elf_generic_reloc,	/* special_function */
1162 	 "R_M32R_GOTOFF_LO",	/* name */
1163 	 FALSE,			/* partial_inplace */
1164 	 0x0000ffff,		/* src_mask */
1165 	 0x0000ffff,		/* dst_mask */
1166 	 FALSE),		/* pcrel_offset */
1167 };
1168 
1169 /* Map BFD reloc types to M32R ELF reloc types.  */
1170 
1171 struct m32r_reloc_map
1172 {
1173   bfd_reloc_code_real_type bfd_reloc_val;
1174   unsigned char elf_reloc_val;
1175 };
1176 
1177 #ifdef USE_M32R_OLD_RELOC
1178 static const struct m32r_reloc_map m32r_reloc_map_old[] =
1179 {
1180   { BFD_RELOC_NONE, R_M32R_NONE },
1181   { BFD_RELOC_16, R_M32R_16 },
1182   { BFD_RELOC_32, R_M32R_32 },
1183   { BFD_RELOC_M32R_24, R_M32R_24 },
1184   { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL },
1185   { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL },
1186   { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL },
1187   { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO },
1188   { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO },
1189   { BFD_RELOC_M32R_LO16, R_M32R_LO16 },
1190   { BFD_RELOC_M32R_SDA16, R_M32R_SDA16 },
1191   { BFD_RELOC_VTABLE_INHERIT, R_M32R_GNU_VTINHERIT },
1192   { BFD_RELOC_VTABLE_ENTRY, R_M32R_GNU_VTENTRY },
1193 };
1194 #else
1195 static const struct m32r_reloc_map m32r_reloc_map[] =
1196 {
1197   { BFD_RELOC_NONE, R_M32R_NONE },
1198   { BFD_RELOC_16, R_M32R_16_RELA },
1199   { BFD_RELOC_32, R_M32R_32_RELA },
1200   { BFD_RELOC_M32R_24, R_M32R_24_RELA },
1201   { BFD_RELOC_M32R_10_PCREL, R_M32R_10_PCREL_RELA },
1202   { BFD_RELOC_M32R_18_PCREL, R_M32R_18_PCREL_RELA },
1203   { BFD_RELOC_M32R_26_PCREL, R_M32R_26_PCREL_RELA },
1204   { BFD_RELOC_M32R_HI16_ULO, R_M32R_HI16_ULO_RELA },
1205   { BFD_RELOC_M32R_HI16_SLO, R_M32R_HI16_SLO_RELA },
1206   { BFD_RELOC_M32R_LO16, R_M32R_LO16_RELA },
1207   { BFD_RELOC_M32R_SDA16, R_M32R_SDA16_RELA },
1208   { BFD_RELOC_VTABLE_INHERIT, R_M32R_RELA_GNU_VTINHERIT },
1209   { BFD_RELOC_VTABLE_ENTRY, R_M32R_RELA_GNU_VTENTRY },
1210   { BFD_RELOC_32_PCREL, R_M32R_REL32 },
1211 
1212   { BFD_RELOC_M32R_GOT24, R_M32R_GOT24 },
1213   { BFD_RELOC_M32R_26_PLTREL, R_M32R_26_PLTREL },
1214   { BFD_RELOC_M32R_COPY, R_M32R_COPY },
1215   { BFD_RELOC_M32R_GLOB_DAT, R_M32R_GLOB_DAT },
1216   { BFD_RELOC_M32R_JMP_SLOT, R_M32R_JMP_SLOT },
1217   { BFD_RELOC_M32R_RELATIVE, R_M32R_RELATIVE },
1218   { BFD_RELOC_M32R_GOTOFF, R_M32R_GOTOFF },
1219   { BFD_RELOC_M32R_GOTPC24, R_M32R_GOTPC24 },
1220   { BFD_RELOC_M32R_GOT16_HI_ULO, R_M32R_GOT16_HI_ULO },
1221   { BFD_RELOC_M32R_GOT16_HI_SLO, R_M32R_GOT16_HI_SLO },
1222   { BFD_RELOC_M32R_GOT16_LO, R_M32R_GOT16_LO },
1223   { BFD_RELOC_M32R_GOTPC_HI_ULO, R_M32R_GOTPC_HI_ULO },
1224   { BFD_RELOC_M32R_GOTPC_HI_SLO, R_M32R_GOTPC_HI_SLO },
1225   { BFD_RELOC_M32R_GOTPC_LO, R_M32R_GOTPC_LO },
1226   { BFD_RELOC_M32R_GOTOFF_HI_ULO, R_M32R_GOTOFF_HI_ULO },
1227   { BFD_RELOC_M32R_GOTOFF_HI_SLO, R_M32R_GOTOFF_HI_SLO },
1228   { BFD_RELOC_M32R_GOTOFF_LO, R_M32R_GOTOFF_LO },
1229 };
1230 #endif
1231 
1232 static reloc_howto_type *
bfd_elf32_bfd_reloc_type_lookup(bfd * abfd ATTRIBUTE_UNUSED,bfd_reloc_code_real_type code)1233 bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1234 				 bfd_reloc_code_real_type code)
1235 {
1236   unsigned int i;
1237 
1238 #ifdef USE_M32R_OLD_RELOC
1239   for (i = 0;
1240        i < sizeof (m32r_reloc_map_old) / sizeof (struct m32r_reloc_map);
1241        i++)
1242     if (m32r_reloc_map_old[i].bfd_reloc_val == code)
1243       return &m32r_elf_howto_table[m32r_reloc_map_old[i].elf_reloc_val];
1244 
1245 #else /* ! USE_M32R_OLD_RELOC */
1246 
1247   for (i = 0;
1248        i < sizeof (m32r_reloc_map) / sizeof (struct m32r_reloc_map);
1249        i++)
1250     if (m32r_reloc_map[i].bfd_reloc_val == code)
1251       return &m32r_elf_howto_table[m32r_reloc_map[i].elf_reloc_val];
1252 #endif
1253 
1254   return NULL;
1255 }
1256 
1257 static reloc_howto_type *
bfd_elf32_bfd_reloc_name_lookup(bfd * abfd ATTRIBUTE_UNUSED,const char * r_name)1258 bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
1259 				 const char *r_name)
1260 {
1261   unsigned int i;
1262 
1263   for (i = 0;
1264        i < sizeof (m32r_elf_howto_table) / sizeof (m32r_elf_howto_table[0]);
1265        i++)
1266     if (m32r_elf_howto_table[i].name != NULL
1267 	&& strcasecmp (m32r_elf_howto_table[i].name, r_name) == 0)
1268       return &m32r_elf_howto_table[i];
1269 
1270   return NULL;
1271 }
1272 
1273 /* Set the howto pointer for an M32R ELF reloc.  */
1274 
1275 static void
m32r_info_to_howto_rel(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1276 m32r_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED,
1277 			arelent *cache_ptr,
1278 			Elf_Internal_Rela *dst)
1279 {
1280   unsigned int r_type;
1281 
1282   r_type = ELF32_R_TYPE (dst->r_info);
1283   if (r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1284     {
1285       _bfd_error_handler (_("%B: invalid M32R reloc number: %d"), abfd, r_type);
1286       r_type = 0;
1287     }
1288   cache_ptr->howto = &m32r_elf_howto_table[r_type];
1289 }
1290 
1291 static void
m32r_info_to_howto(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1292 m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1293 		    arelent *cache_ptr,
1294 		    Elf_Internal_Rela *dst)
1295 {
1296   BFD_ASSERT ((ELF32_R_TYPE(dst->r_info) == (unsigned int) R_M32R_NONE)
1297               || ((ELF32_R_TYPE(dst->r_info) > (unsigned int) R_M32R_GNU_VTENTRY)
1298                   && (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_M32R_max)));
1299   cache_ptr->howto = &m32r_elf_howto_table[ELF32_R_TYPE(dst->r_info)];
1300 }
1301 
1302 
1303 /* Given a BFD section, try to locate the corresponding ELF section
1304    index.  */
1305 
1306 static bfd_boolean
_bfd_m32r_elf_section_from_bfd_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,int * retval)1307 _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1308 					asection *sec,
1309 					int *retval)
1310 {
1311   if (strcmp (bfd_get_section_name (abfd, sec), ".scommon") == 0)
1312     {
1313       *retval = SHN_M32R_SCOMMON;
1314       return TRUE;
1315     }
1316   return FALSE;
1317 }
1318 
1319 /* M32R ELF uses two common sections.  One is the usual one, and the other
1320    is for small objects.  All the small objects are kept together, and then
1321    referenced via one register, which yields faster assembler code.  It is
1322    up to the compiler to emit an instruction to load the register with
1323    _SDA_BASE.  This is what we use for the small common section.  This
1324    approach is copied from elf32-mips.c.  */
1325 static asection m32r_elf_scom_section;
1326 static asymbol m32r_elf_scom_symbol;
1327 static asymbol *m32r_elf_scom_symbol_ptr;
1328 
1329 /* Handle the special M32R section numbers that a symbol may use.  */
1330 
1331 static void
_bfd_m32r_elf_symbol_processing(bfd * abfd ATTRIBUTE_UNUSED,asymbol * asym)1332 _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1333 {
1334   elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1335 
1336   switch (elfsym->internal_elf_sym.st_shndx)
1337     {
1338     case SHN_M32R_SCOMMON:
1339       if (m32r_elf_scom_section.name == NULL)
1340 	{
1341 	  /* Initialize the small common section.  */
1342 	  m32r_elf_scom_section.name = ".scommon";
1343 	  m32r_elf_scom_section.flags = SEC_IS_COMMON;
1344 	  m32r_elf_scom_section.output_section = &m32r_elf_scom_section;
1345 	  m32r_elf_scom_section.symbol = &m32r_elf_scom_symbol;
1346 	  m32r_elf_scom_section.symbol_ptr_ptr = &m32r_elf_scom_symbol_ptr;
1347 	  m32r_elf_scom_symbol.name = ".scommon";
1348 	  m32r_elf_scom_symbol.flags = BSF_SECTION_SYM;
1349 	  m32r_elf_scom_symbol.section = &m32r_elf_scom_section;
1350 	  m32r_elf_scom_symbol_ptr = &m32r_elf_scom_symbol;
1351 	}
1352       asym->section = &m32r_elf_scom_section;
1353       asym->value = elfsym->internal_elf_sym.st_size;
1354       break;
1355     }
1356 }
1357 
1358 /* Hook called by the linker routine which adds symbols from an object
1359    file.  We must handle the special M32R section numbers here.
1360    We also keep watching for whether we need to create the sdata special
1361    linker sections.  */
1362 
1363 static bfd_boolean
m32r_elf_add_symbol_hook(bfd * abfd,struct bfd_link_info * info,Elf_Internal_Sym * sym,const char ** namep,flagword * flagsp ATTRIBUTE_UNUSED,asection ** secp,bfd_vma * valp)1364 m32r_elf_add_symbol_hook (bfd *abfd,
1365 			  struct bfd_link_info *info,
1366 			  Elf_Internal_Sym *sym,
1367 			  const char **namep,
1368 			  flagword *flagsp ATTRIBUTE_UNUSED,
1369 			  asection **secp,
1370 			  bfd_vma *valp)
1371 {
1372   if (! bfd_link_relocatable (info)
1373       && (*namep)[0] == '_' && (*namep)[1] == 'S'
1374       && strcmp (*namep, "_SDA_BASE_") == 0
1375       && is_elf_hash_table (info->hash))
1376     {
1377       /* This is simpler than using _bfd_elf_create_linker_section
1378 	 (our needs are simpler than ppc's needs).  Also
1379 	 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1380 	 section already exists a new one is created that follows it which
1381 	 screws of _SDA_BASE_ address calcs because output_offset != 0.  */
1382       struct elf_link_hash_entry *h;
1383       struct bfd_link_hash_entry *bh;
1384       asection *s = bfd_get_section_by_name (abfd, ".sdata");
1385 
1386       /* The following code was cobbled from elf32-ppc.c and elflink.c.  */
1387       if (s == NULL)
1388 	{
1389 	  flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1390 			    | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1391 
1392 	  s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1393 						  flags);
1394 	  if (s == NULL)
1395 	    return FALSE;
1396 	  if (! bfd_set_section_alignment (abfd, s, 2))
1397 	    return FALSE;
1398 	}
1399 
1400       bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1401 				 FALSE, FALSE, FALSE);
1402 
1403       if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1404 	  && !(_bfd_generic_link_add_one_symbol (info,
1405 						 abfd,
1406 						 "_SDA_BASE_",
1407 						 BSF_GLOBAL,
1408 						 s,
1409 						 (bfd_vma) 32768,
1410 						 NULL,
1411 						 FALSE,
1412 						 get_elf_backend_data (abfd)->collect,
1413 						 &bh)))
1414 	return FALSE;
1415       h = (struct elf_link_hash_entry *) bh;
1416       h->type = STT_OBJECT;
1417     }
1418 
1419   switch (sym->st_shndx)
1420     {
1421     case SHN_M32R_SCOMMON:
1422       *secp = bfd_make_section_old_way (abfd, ".scommon");
1423       (*secp)->flags |= SEC_IS_COMMON;
1424       *valp = sym->st_size;
1425       break;
1426     }
1427 
1428   return TRUE;
1429 }
1430 
1431 /* We have to figure out the SDA_BASE value, so that we can adjust the
1432    symbol value correctly.  We look up the symbol _SDA_BASE_ in the output
1433    BFD.  If we can't find it, we're stuck.  We cache it in the ELF
1434    target data.  We don't need to adjust the symbol value for an
1435    external symbol if we are producing relocatable output.  */
1436 
1437 static bfd_reloc_status_type
m32r_elf_final_sda_base(bfd * output_bfd,struct bfd_link_info * info,const char ** error_message,bfd_vma * psb)1438 m32r_elf_final_sda_base (bfd *output_bfd,
1439 			 struct bfd_link_info *info,
1440 			 const char **error_message,
1441 			 bfd_vma *psb)
1442 {
1443   if (elf_gp (output_bfd) == 0)
1444     {
1445       struct bfd_link_hash_entry *h;
1446 
1447       h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", FALSE, FALSE, TRUE);
1448       if (h != NULL && h->type == bfd_link_hash_defined)
1449 	elf_gp (output_bfd) = (h->u.def.value
1450 			       + h->u.def.section->output_section->vma
1451 			       + h->u.def.section->output_offset);
1452       else
1453 	{
1454 	  /* Only get the error once.  */
1455 	  *psb = elf_gp (output_bfd) = 4;
1456 	  *error_message =
1457 	    (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1458 	  return bfd_reloc_dangerous;
1459 	}
1460     }
1461   *psb = elf_gp (output_bfd);
1462   return bfd_reloc_ok;
1463 }
1464 
1465 /* Return size of a PLT entry.  */
1466 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1467 
1468 /* The m32r linker needs to keep track of the number of relocs that it
1469    decides to copy in check_relocs for each symbol.  This is so that
1470    it can discard PC relative relocs if it doesn't need them when
1471    linking with -Bsymbolic.  We store the information in a field
1472    extending the regular ELF linker hash table.  */
1473 
1474 /* This structure keeps track of the number of PC relative relocs we
1475    have copied for a given symbol.  */
1476 
1477 struct elf_m32r_pcrel_relocs_copied
1478 {
1479   /* Next section.  */
1480   struct elf_m32r_pcrel_relocs_copied *next;
1481   /* A section in dynobj.  */
1482   asection *section;
1483   /* Number of relocs copied in this section.  */
1484   bfd_size_type count;
1485 };
1486 
1487 /* The sh linker needs to keep track of the number of relocs that it
1488    decides to copy as dynamic relocs in check_relocs for each symbol.
1489    This is so that it can later discard them if they are found to be
1490    unnecessary.  We store the information in a field extending the
1491    regular ELF linker hash table.  */
1492 
1493 struct elf_m32r_dyn_relocs
1494 {
1495   struct elf_m32r_dyn_relocs *next;
1496 
1497   /* The input section of the reloc.  */
1498   asection *sec;
1499 
1500   /* Total number of relocs copied for the input section.  */
1501   bfd_size_type count;
1502 
1503   /* Number of pc-relative relocs copied for the input section.  */
1504   bfd_size_type pc_count;
1505 };
1506 
1507 
1508 /* m32r ELF linker hash entry.  */
1509 
1510 struct elf_m32r_link_hash_entry
1511 {
1512   struct elf_link_hash_entry root;
1513 
1514   /* Track dynamic relocs copied for this symbol.  */
1515   struct elf_m32r_dyn_relocs *dyn_relocs;
1516 };
1517 
1518 /* m32r ELF linker hash table.  */
1519 
1520 struct elf_m32r_link_hash_table
1521 {
1522   struct elf_link_hash_table root;
1523 
1524   /* Short-cuts to get to dynamic linker sections.  */
1525   asection *sgot;
1526   asection *sgotplt;
1527   asection *srelgot;
1528   asection *splt;
1529   asection *srelplt;
1530   asection *sdynbss;
1531   asection *srelbss;
1532 
1533   /* Small local sym cache.  */
1534   struct sym_cache sym_cache;
1535 };
1536 
1537 /* Traverse an m32r ELF linker hash table.  */
1538 
1539 #define m32r_elf_link_hash_traverse(table, func, info)			\
1540   (elf_link_hash_traverse						\
1541    (&(table)->root,							\
1542     (bfd_boolean (*) (struct elf_link_hash_entry *, void *)) (func),	\
1543     (info)))
1544 
1545 /* Get the m32r ELF linker hash table from a link_info structure.  */
1546 
1547 #define m32r_elf_hash_table(p) \
1548   (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
1549   == M32R_ELF_DATA ? ((struct elf_m32r_link_hash_table *) ((p)->hash)) : NULL)
1550 
1551 /* Create an entry in an m32r ELF linker hash table.  */
1552 
1553 static struct bfd_hash_entry *
m32r_elf_link_hash_newfunc(struct bfd_hash_entry * entry,struct bfd_hash_table * table,const char * string)1554 m32r_elf_link_hash_newfunc (struct bfd_hash_entry *entry,
1555 			    struct bfd_hash_table *table,
1556 			    const char *string)
1557 {
1558   struct elf_m32r_link_hash_entry *ret =
1559     (struct elf_m32r_link_hash_entry *) entry;
1560 
1561   /* Allocate the structure if it has not already been allocated by a
1562      subclass.  */
1563   if (ret == NULL)
1564     ret = bfd_hash_allocate (table,
1565 			     sizeof (struct elf_m32r_link_hash_entry));
1566   if (ret == NULL)
1567     return NULL;
1568 
1569   /* Call the allocation method of the superclass.  */
1570   ret = ((struct elf_m32r_link_hash_entry *)
1571          _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1572                                      table, string));
1573   if (ret != NULL)
1574     {
1575       struct elf_m32r_link_hash_entry *eh;
1576 
1577       eh = (struct elf_m32r_link_hash_entry *) ret;
1578       eh->dyn_relocs = NULL;
1579     }
1580 
1581   return (struct bfd_hash_entry *) ret;
1582 }
1583 
1584 /* Create an m32r ELF linker hash table.  */
1585 
1586 static struct bfd_link_hash_table *
m32r_elf_link_hash_table_create(bfd * abfd)1587 m32r_elf_link_hash_table_create (bfd *abfd)
1588 {
1589   struct elf_m32r_link_hash_table *ret;
1590   bfd_size_type amt = sizeof (struct elf_m32r_link_hash_table);
1591 
1592   ret = bfd_zmalloc (amt);
1593   if (ret == NULL)
1594     return NULL;
1595 
1596   if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1597 				      m32r_elf_link_hash_newfunc,
1598 				      sizeof (struct elf_m32r_link_hash_entry),
1599 				      M32R_ELF_DATA))
1600     {
1601       free (ret);
1602       return NULL;
1603     }
1604 
1605   return &ret->root.root;
1606 }
1607 
1608 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
1609    shortcuts to them in our hash table.  */
1610 
1611 static bfd_boolean
create_got_section(bfd * dynobj,struct bfd_link_info * info)1612 create_got_section (bfd *dynobj, struct bfd_link_info *info)
1613 {
1614   struct elf_m32r_link_hash_table *htab;
1615 
1616   if (! _bfd_elf_create_got_section (dynobj, info))
1617     return FALSE;
1618 
1619   htab = m32r_elf_hash_table (info);
1620   if (htab == NULL)
1621     return FALSE;
1622 
1623   htab->sgot = bfd_get_linker_section (dynobj, ".got");
1624   htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt");
1625   htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got");
1626   if (! htab->sgot || ! htab->sgotplt || ! htab->srelgot)
1627     abort ();
1628 
1629   return TRUE;
1630 }
1631 
1632 /* Create dynamic sections when linking against a dynamic object.  */
1633 
1634 static bfd_boolean
m32r_elf_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)1635 m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1636 {
1637   struct elf_m32r_link_hash_table *htab;
1638   flagword flags, pltflags;
1639   asection *s;
1640   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1641   int ptralign = 2; /* 32bit */
1642 
1643   htab = m32r_elf_hash_table (info);
1644   if (htab == NULL)
1645     return FALSE;
1646 
1647   /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1648      .rel[a].bss sections.  */
1649   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1650            | SEC_LINKER_CREATED);
1651 
1652   pltflags = flags;
1653   pltflags |= SEC_CODE;
1654   if (bed->plt_not_loaded)
1655     pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1656   if (bed->plt_readonly)
1657     pltflags |= SEC_READONLY;
1658 
1659   s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1660   htab->splt = s;
1661   if (s == NULL
1662       || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment))
1663     return FALSE;
1664 
1665   if (bed->want_plt_sym)
1666     {
1667       /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1668          .plt section.  */
1669       struct bfd_link_hash_entry *bh = NULL;
1670       struct elf_link_hash_entry *h;
1671 
1672       if (! (_bfd_generic_link_add_one_symbol
1673              (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1674               (bfd_vma) 0, NULL, FALSE,
1675               get_elf_backend_data (abfd)->collect, &bh)))
1676         return FALSE;
1677       h = (struct elf_link_hash_entry *) bh;
1678       h->def_regular = 1;
1679       h->type = STT_OBJECT;
1680       htab->root.hplt = h;
1681 
1682       if (bfd_link_pic (info)
1683           && ! bfd_elf_link_record_dynamic_symbol (info, h))
1684         return FALSE;
1685     }
1686 
1687   s = bfd_make_section_anyway_with_flags (abfd,
1688 					  bed->default_use_rela_p
1689 					  ? ".rela.plt" : ".rel.plt",
1690 					  flags | SEC_READONLY);
1691   htab->srelplt = s;
1692   if (s == NULL
1693       || ! bfd_set_section_alignment (abfd, s, ptralign))
1694     return FALSE;
1695 
1696   if (htab->sgot == NULL
1697       && ! create_got_section (abfd, info))
1698     return FALSE;
1699 
1700   if (bed->want_dynbss)
1701     {
1702       /* The .dynbss section is a place to put symbols which are defined
1703          by dynamic objects, are referenced by regular objects, and are
1704          not functions.  We must allocate space for them in the process
1705          image and use a R_*_COPY reloc to tell the dynamic linker to
1706          initialize them at run time.  The linker script puts the .dynbss
1707          section into the .bss section of the final image.  */
1708       s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1709 					      SEC_ALLOC | SEC_LINKER_CREATED);
1710       htab->sdynbss = s;
1711       if (s == NULL)
1712         return FALSE;
1713       /* The .rel[a].bss section holds copy relocs.  This section is not
1714          normally needed.  We need to create it here, though, so that the
1715          linker will map it to an output section.  We can't just create it
1716          only if we need it, because we will not know whether we need it
1717          until we have seen all the input files, and the first time the
1718          main linker code calls BFD after examining all the input files
1719          (size_dynamic_sections) the input sections have already been
1720          mapped to the output sections.  If the section turns out not to
1721          be needed, we can discard it later.  We will never need this
1722          section when generating a shared object, since they do not use
1723          copy relocs.  */
1724       if (! bfd_link_pic (info))
1725         {
1726           s = bfd_make_section_anyway_with_flags (abfd,
1727 						  (bed->default_use_rela_p
1728 						   ? ".rela.bss" : ".rel.bss"),
1729 						  flags | SEC_READONLY);
1730           htab->srelbss = s;
1731           if (s == NULL
1732               || ! bfd_set_section_alignment (abfd, s, ptralign))
1733             return FALSE;
1734         }
1735     }
1736 
1737   return TRUE;
1738 }
1739 
1740 /* Copy the extra info we tack onto an elf_link_hash_entry.  */
1741 
1742 static void
m32r_elf_copy_indirect_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * dir,struct elf_link_hash_entry * ind)1743 m32r_elf_copy_indirect_symbol (struct bfd_link_info *info,
1744                                struct elf_link_hash_entry *dir,
1745                                struct elf_link_hash_entry *ind)
1746 {
1747   struct elf_m32r_link_hash_entry * edir;
1748   struct elf_m32r_link_hash_entry * eind;
1749 
1750   edir = (struct elf_m32r_link_hash_entry *) dir;
1751   eind = (struct elf_m32r_link_hash_entry *) ind;
1752 
1753   if (eind->dyn_relocs != NULL)
1754     {
1755       if (edir->dyn_relocs != NULL)
1756         {
1757           struct elf_m32r_dyn_relocs **pp;
1758           struct elf_m32r_dyn_relocs *p;
1759 
1760           /* Add reloc counts against the indirect sym to the direct sym
1761              list.  Merge any entries against the same section.  */
1762           for (pp = &eind->dyn_relocs; (p = *pp) != NULL;)
1763             {
1764               struct elf_m32r_dyn_relocs *q;
1765 
1766               for (q = edir->dyn_relocs; q != NULL; q = q->next)
1767                 if (q->sec == p->sec)
1768                   {
1769                     q->pc_count += p->pc_count;
1770                     q->count += p->count;
1771                     *pp = p->next;
1772                     break;
1773                   }
1774               if (q == NULL)
1775                 pp = &p->next;
1776             }
1777           *pp = edir->dyn_relocs;
1778         }
1779 
1780       edir->dyn_relocs = eind->dyn_relocs;
1781       eind->dyn_relocs = NULL;
1782     }
1783 
1784   _bfd_elf_link_hash_copy_indirect (info, dir, ind);
1785 }
1786 
1787 
1788 /* Adjust a symbol defined by a dynamic object and referenced by a
1789    regular object.  The current definition is in some section of the
1790    dynamic object, but we're not including those sections.  We have to
1791    change the definition to something the rest of the link can
1792    understand.  */
1793 
1794 static bfd_boolean
m32r_elf_adjust_dynamic_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * h)1795 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1796 				struct elf_link_hash_entry *h)
1797 {
1798   struct elf_m32r_link_hash_table *htab;
1799   struct elf_m32r_link_hash_entry *eh;
1800   struct elf_m32r_dyn_relocs *p;
1801   bfd *dynobj;
1802   asection *s;
1803 
1804 #ifdef DEBUG_PIC
1805   printf ("m32r_elf_adjust_dynamic_symbol()\n");
1806 #endif
1807 
1808   dynobj = elf_hash_table (info)->dynobj;
1809 
1810   /* Make sure we know what is going on here.  */
1811   BFD_ASSERT (dynobj != NULL
1812               && (h->needs_plt
1813                   || h->u.weakdef != NULL
1814                   || (h->def_dynamic
1815                       && h->ref_regular
1816                       && !h->def_regular)));
1817 
1818   /* If this is a function, put it in the procedure linkage table.  We
1819      will fill in the contents of the procedure linkage table later,
1820      when we know the address of the .got section.  */
1821   if (h->type == STT_FUNC
1822       || h->needs_plt)
1823     {
1824       if (! bfd_link_pic (info)
1825           && !h->def_dynamic
1826           && !h->ref_dynamic
1827 	  && h->root.type != bfd_link_hash_undefweak
1828 	  && h->root.type != bfd_link_hash_undefined)
1829         {
1830           /* This case can occur if we saw a PLT reloc in an input
1831              file, but the symbol was never referred to by a dynamic
1832              object.  In such a case, we don't actually need to build
1833              a procedure linkage table, and we can just do a PCREL
1834              reloc instead.  */
1835           h->plt.offset = (bfd_vma) -1;
1836           h->needs_plt = 0;
1837         }
1838 
1839       return TRUE;
1840     }
1841   else
1842     h->plt.offset = (bfd_vma) -1;
1843 
1844   /* If this is a weak symbol, and there is a real definition, the
1845      processor independent code will have arranged for us to see the
1846      real definition first, and we can just use the same value.  */
1847   if (h->u.weakdef != NULL)
1848     {
1849       BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
1850                   || h->u.weakdef->root.type == bfd_link_hash_defweak);
1851       h->root.u.def.section = h->u.weakdef->root.u.def.section;
1852       h->root.u.def.value = h->u.weakdef->root.u.def.value;
1853       return TRUE;
1854     }
1855 
1856   /* This is a reference to a symbol defined by a dynamic object which
1857      is not a function.  */
1858 
1859   /* If we are creating a shared library, we must presume that the
1860      only references to the symbol are via the global offset table.
1861      For such cases we need not do anything here; the relocations will
1862      be handled correctly by relocate_section.  */
1863   if (bfd_link_pic (info))
1864     return TRUE;
1865 
1866   /* If there are no references to this symbol that do not use the
1867      GOT, we don't need to generate a copy reloc.  */
1868   if (!h->non_got_ref)
1869     return TRUE;
1870 
1871   /* If -z nocopyreloc was given, we won't generate them either.  */
1872   if (info->nocopyreloc)
1873     {
1874       h->non_got_ref = 0;
1875       return TRUE;
1876     }
1877 
1878   eh = (struct elf_m32r_link_hash_entry *) h;
1879   for (p = eh->dyn_relocs; p != NULL; p = p->next)
1880     {
1881       s = p->sec->output_section;
1882       if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0)
1883         break;
1884     }
1885 
1886   /* If we didn't find any dynamic relocs in sections which needs the
1887      copy reloc, then we'll be keeping the dynamic relocs and avoiding
1888      the copy reloc.  */
1889   if (p == NULL)
1890     {
1891       h->non_got_ref = 0;
1892       return TRUE;
1893     }
1894 
1895   /* We must allocate the symbol in our .dynbss section, which will
1896      become part of the .bss section of the executable.  There will be
1897      an entry for this symbol in the .dynsym section.  The dynamic
1898      object will contain position independent code, so all references
1899      from the dynamic object to this symbol will go through the global
1900      offset table.  The dynamic linker will use the .dynsym entry to
1901      determine the address it must put in the global offset table, so
1902      both the dynamic object and the regular object will refer to the
1903      same memory location for the variable.  */
1904 
1905   htab = m32r_elf_hash_table (info);
1906   if (htab == NULL)
1907     return FALSE;
1908 
1909   s = htab->sdynbss;
1910   BFD_ASSERT (s != NULL);
1911 
1912   /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1913      to copy the initial value out of the dynamic object and into the
1914      runtime process image.  We need to remember the offset into the
1915      .rela.bss section we are going to use.  */
1916   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1917     {
1918       asection *srel;
1919 
1920       srel = htab->srelbss;
1921       BFD_ASSERT (srel != NULL);
1922       srel->size += sizeof (Elf32_External_Rela);
1923       h->needs_copy = 1;
1924     }
1925 
1926   return _bfd_elf_adjust_dynamic_copy (info, h, s);
1927 }
1928 
1929 /* Allocate space in .plt, .got and associated reloc sections for
1930    dynamic relocs.  */
1931 
1932 static bfd_boolean
allocate_dynrelocs(struct elf_link_hash_entry * h,void * inf)1933 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1934 {
1935   struct bfd_link_info *info;
1936   struct elf_m32r_link_hash_table *htab;
1937   struct elf_m32r_link_hash_entry *eh;
1938   struct elf_m32r_dyn_relocs *p;
1939 
1940   if (h->root.type == bfd_link_hash_indirect)
1941     return TRUE;
1942 
1943   info = (struct bfd_link_info *) inf;
1944   htab = m32r_elf_hash_table (info);
1945   if (htab == NULL)
1946     return FALSE;
1947 
1948   eh = (struct elf_m32r_link_hash_entry *) h;
1949 
1950   if (htab->root.dynamic_sections_created
1951       && h->plt.refcount > 0)
1952     {
1953       /* Make sure this symbol is output as a dynamic symbol.
1954          Undefined weak syms won't yet be marked as dynamic.  */
1955       if (h->dynindx == -1
1956           && !h->forced_local)
1957         {
1958           if (! bfd_elf_link_record_dynamic_symbol (info, h))
1959             return FALSE;
1960         }
1961 
1962       if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1963         {
1964           asection *s = htab->splt;
1965 
1966           /* If this is the first .plt entry, make room for the special
1967              first entry.  */
1968           if (s->size == 0)
1969             s->size += PLT_ENTRY_SIZE;
1970 
1971           h->plt.offset = s->size;
1972 
1973           /* If this symbol is not defined in a regular file, and we are
1974              not generating a shared library, then set the symbol to this
1975              location in the .plt.  This is required to make function
1976              pointers compare as equal between the normal executable and
1977              the shared library.  */
1978           if (! bfd_link_pic (info)
1979               && !h->def_regular)
1980             {
1981               h->root.u.def.section = s;
1982               h->root.u.def.value = h->plt.offset;
1983             }
1984 
1985           /* Make room for this entry.  */
1986           s->size += PLT_ENTRY_SIZE;
1987 
1988           /* We also need to make an entry in the .got.plt section, which
1989              will be placed in the .got section by the linker script.  */
1990           htab->sgotplt->size += 4;
1991 
1992           /* We also need to make an entry in the .rel.plt section.  */
1993           htab->srelplt->size += sizeof (Elf32_External_Rela);
1994         }
1995       else
1996         {
1997           h->plt.offset = (bfd_vma) -1;
1998           h->needs_plt = 0;
1999         }
2000     }
2001   else
2002     {
2003       h->plt.offset = (bfd_vma) -1;
2004       h->needs_plt = 0;
2005     }
2006 
2007   if (h->got.refcount > 0)
2008     {
2009       asection *s;
2010       bfd_boolean dyn;
2011 
2012       /* Make sure this symbol is output as a dynamic symbol.
2013          Undefined weak syms won't yet be marked as dynamic.  */
2014       if (h->dynindx == -1
2015           && !h->forced_local)
2016         {
2017           if (! bfd_elf_link_record_dynamic_symbol (info, h))
2018             return FALSE;
2019         }
2020 
2021       s = htab->sgot;
2022 
2023       h->got.offset = s->size;
2024       s->size += 4;
2025       dyn = htab->root.dynamic_sections_created;
2026       if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
2027         htab->srelgot->size += sizeof (Elf32_External_Rela);
2028     }
2029   else
2030     h->got.offset = (bfd_vma) -1;
2031 
2032   if (eh->dyn_relocs == NULL)
2033     return TRUE;
2034 
2035   /* In the shared -Bsymbolic case, discard space allocated for
2036      dynamic pc-relative relocs against symbols which turn out to be
2037      defined in regular objects.  For the normal shared case, discard
2038      space for pc-relative relocs that have become local due to symbol
2039      visibility changes.  */
2040 
2041   if (bfd_link_pic (info))
2042     {
2043       if (h->def_regular
2044           && (h->forced_local
2045               || info->symbolic))
2046         {
2047           struct elf_m32r_dyn_relocs **pp;
2048 
2049           for (pp = &eh->dyn_relocs; (p = *pp) != NULL;)
2050             {
2051               p->count -= p->pc_count;
2052               p->pc_count = 0;
2053               if (p->count == 0)
2054                 *pp = p->next;
2055               else
2056                 pp = &p->next;
2057             }
2058         }
2059 
2060       /* Also discard relocs on undefined weak syms with non-default
2061 	 visibility.  */
2062       if (eh->dyn_relocs != NULL
2063 	  && h->root.type == bfd_link_hash_undefweak)
2064 	{
2065 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
2066 	    eh->dyn_relocs = NULL;
2067 
2068 	  /* Make sure undefined weak symbols are output as a dynamic
2069 	     symbol in PIEs.  */
2070 	  else if (h->dynindx == -1
2071 		   && !h->forced_local)
2072 	    {
2073 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
2074 		return FALSE;
2075 	    }
2076 	}
2077     }
2078   else
2079     {
2080       /* For the non-shared case, discard space for relocs against
2081          symbols which turn out to need copy relocs or are not
2082          dynamic.  */
2083 
2084       if (!h->non_got_ref
2085           && ((h->def_dynamic
2086                && !h->def_regular)
2087               || (htab->root.dynamic_sections_created
2088                   && (h->root.type == bfd_link_hash_undefweak
2089                       || h->root.type == bfd_link_hash_undefined))))
2090         {
2091           /* Make sure this symbol is output as a dynamic symbol.
2092              Undefined weak syms won't yet be marked as dynamic.  */
2093           if (h->dynindx == -1
2094               && !h->forced_local)
2095             {
2096               if (! bfd_elf_link_record_dynamic_symbol (info, h))
2097                 return FALSE;
2098             }
2099 
2100           /* If that succeeded, we know we'll be keeping all the
2101              relocs.  */
2102           if (h->dynindx != -1)
2103             goto keep;
2104         }
2105 
2106       eh->dyn_relocs = NULL;
2107 
2108     keep: ;
2109     }
2110 
2111   /* Finally, allocate space.  */
2112   for (p = eh->dyn_relocs; p != NULL; p = p->next)
2113     {
2114       asection *sreloc = elf_section_data (p->sec)->sreloc;
2115       sreloc->size += p->count * sizeof (Elf32_External_Rela);
2116     }
2117 
2118   return TRUE;
2119 }
2120 
2121 /* Find any dynamic relocs that apply to read-only sections.  */
2122 
2123 static bfd_boolean
readonly_dynrelocs(struct elf_link_hash_entry * h,void * inf)2124 readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf)
2125 {
2126   struct elf_m32r_link_hash_entry *eh;
2127   struct elf_m32r_dyn_relocs *p;
2128 
2129   eh = (struct elf_m32r_link_hash_entry *) h;
2130   for (p = eh->dyn_relocs; p != NULL; p = p->next)
2131     {
2132       asection *s = p->sec->output_section;
2133 
2134       if (s != NULL && (s->flags & SEC_READONLY) != 0)
2135         {
2136           struct bfd_link_info *info = (struct bfd_link_info *) inf;
2137 
2138           info->flags |= DF_TEXTREL;
2139 
2140           /* Not an error, just cut short the traversal.  */
2141           return FALSE;
2142         }
2143     }
2144   return TRUE;
2145 }
2146 
2147 /* Set the sizes of the dynamic sections.  */
2148 
2149 static bfd_boolean
m32r_elf_size_dynamic_sections(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info)2150 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2151 				struct bfd_link_info *info)
2152 {
2153   struct elf_m32r_link_hash_table *htab;
2154   bfd *dynobj;
2155   asection *s;
2156   bfd_boolean relocs;
2157   bfd *ibfd;
2158 
2159 #ifdef DEBUG_PIC
2160   printf ("m32r_elf_size_dynamic_sections()\n");
2161 #endif
2162 
2163   htab = m32r_elf_hash_table (info);
2164   if (htab == NULL)
2165     return FALSE;
2166 
2167   dynobj = htab->root.dynobj;
2168   BFD_ASSERT (dynobj != NULL);
2169 
2170   if (htab->root.dynamic_sections_created)
2171     {
2172       /* Set the contents of the .interp section to the interpreter.  */
2173       if (bfd_link_executable (info) && !info->nointerp)
2174 	{
2175 	  s = bfd_get_linker_section (dynobj, ".interp");
2176 	  BFD_ASSERT (s != NULL);
2177 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
2178 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2179 	}
2180     }
2181 
2182   /* Set up .got offsets for local syms, and space for local dynamic
2183      relocs.  */
2184   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2185     {
2186       bfd_signed_vma *local_got;
2187       bfd_signed_vma *end_local_got;
2188       bfd_size_type locsymcount;
2189       Elf_Internal_Shdr *symtab_hdr;
2190       asection *srel;
2191 
2192       if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2193         continue;
2194 
2195       for (s = ibfd->sections; s != NULL; s = s->next)
2196         {
2197           struct elf_m32r_dyn_relocs *p;
2198 
2199           for (p = ((struct elf_m32r_dyn_relocs *)
2200                     elf_section_data (s)->local_dynrel);
2201                p != NULL;
2202                p = p->next)
2203             {
2204               if (! bfd_is_abs_section (p->sec)
2205                   && bfd_is_abs_section (p->sec->output_section))
2206                 {
2207                   /* Input section has been discarded, either because
2208                      it is a copy of a linkonce section or due to
2209                      linker script /DISCARD/, so we'll be discarding
2210                      the relocs too.  */
2211                 }
2212               else if (p->count != 0)
2213                 {
2214                   srel = elf_section_data (p->sec)->sreloc;
2215                   srel->size += p->count * sizeof (Elf32_External_Rela);
2216                   if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2217                     info->flags |= DF_TEXTREL;
2218                 }
2219             }
2220         }
2221 
2222       local_got = elf_local_got_refcounts (ibfd);
2223       if (!local_got)
2224         continue;
2225 
2226       symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2227       locsymcount = symtab_hdr->sh_info;
2228       end_local_got = local_got + locsymcount;
2229       s = htab->sgot;
2230       srel = htab->srelgot;
2231       for (; local_got < end_local_got; ++local_got)
2232         {
2233           if (*local_got > 0)
2234             {
2235               *local_got = s->size;
2236               s->size += 4;
2237               if (bfd_link_pic (info))
2238                 srel->size += sizeof (Elf32_External_Rela);
2239             }
2240           else
2241             *local_got = (bfd_vma) -1;
2242         }
2243     }
2244 
2245   /* Allocate global sym .plt and .got entries, and space for global
2246      sym dynamic relocs.  */
2247   elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info);
2248 
2249   /* We now have determined the sizes of the various dynamic sections.
2250      Allocate memory for them.  */
2251   relocs = FALSE;
2252   for (s = dynobj->sections; s != NULL; s = s->next)
2253     {
2254       if ((s->flags & SEC_LINKER_CREATED) == 0)
2255         continue;
2256 
2257       if (s == htab->splt
2258           || s == htab->sgot
2259           || s == htab->sgotplt
2260 	  || s == htab->sdynbss)
2261         {
2262           /* Strip this section if we don't need it; see the
2263              comment below.  */
2264         }
2265       else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela"))
2266         {
2267           if (s->size != 0 && s != htab->srelplt)
2268             relocs = TRUE;
2269 
2270           /* We use the reloc_count field as a counter if we need
2271              to copy relocs into the output file.  */
2272           s->reloc_count = 0;
2273         }
2274       else
2275 	/* It's not one of our sections, so don't allocate space.  */
2276 	continue;
2277 
2278       if (s->size == 0)
2279         {
2280           /* If we don't need this section, strip it from the
2281              output file.  This is mostly to handle .rela.bss and
2282              .rela.plt.  We must create both sections in
2283              create_dynamic_sections, because they must be created
2284              before the linker maps input sections to output
2285              sections.  The linker does that before
2286              adjust_dynamic_symbol is called, and it is that
2287              function which decides whether anything needs to go
2288              into these sections.  */
2289           s->flags |= SEC_EXCLUDE;
2290           continue;
2291         }
2292 
2293       if ((s->flags & SEC_HAS_CONTENTS) == 0)
2294 	continue;
2295 
2296       /* Allocate memory for the section contents.  We use bfd_zalloc
2297          here in case unused entries are not reclaimed before the
2298          section's contents are written out.  This should not happen,
2299          but this way if it does, we get a R_M32R_NONE reloc instead
2300          of garbage.  */
2301       s->contents = bfd_zalloc (dynobj, s->size);
2302       if (s->contents == NULL)
2303         return FALSE;
2304     }
2305 
2306   if (htab->root.dynamic_sections_created)
2307     {
2308       /* Add some entries to the .dynamic section.  We fill in the
2309 	 values later, in m32r_elf_finish_dynamic_sections, but we
2310 	 must add the entries now so that we get the correct size for
2311 	 the .dynamic section.  The DT_DEBUG entry is filled in by the
2312 	 dynamic linker and used by the debugger.  */
2313 #define add_dynamic_entry(TAG, VAL) \
2314   _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2315 
2316      if (bfd_link_executable (info))
2317 	{
2318 	  if (! add_dynamic_entry (DT_DEBUG, 0))
2319 	    return FALSE;
2320 	}
2321 
2322       if (htab->splt->size != 0)
2323         {
2324           if (! add_dynamic_entry (DT_PLTGOT, 0)
2325               || ! add_dynamic_entry (DT_PLTRELSZ, 0)
2326               || ! add_dynamic_entry (DT_PLTREL, DT_RELA)
2327               || ! add_dynamic_entry (DT_JMPREL, 0))
2328             return FALSE;
2329         }
2330 
2331       if (relocs)
2332         {
2333           if (! add_dynamic_entry (DT_RELA, 0)
2334               || ! add_dynamic_entry (DT_RELASZ, 0)
2335               || ! add_dynamic_entry (DT_RELAENT,
2336                                       sizeof (Elf32_External_Rela)))
2337             return FALSE;
2338 
2339           /* If any dynamic relocs apply to a read-only section,
2340              then we need a DT_TEXTREL entry.  */
2341           if ((info->flags & DF_TEXTREL) == 0)
2342             elf_link_hash_traverse (&htab->root, readonly_dynrelocs,
2343                                     info);
2344 
2345           if ((info->flags & DF_TEXTREL) != 0)
2346             {
2347               if (! add_dynamic_entry (DT_TEXTREL, 0))
2348                 return FALSE;
2349             }
2350         }
2351     }
2352 #undef add_dynamic_entry
2353 
2354   return TRUE;
2355 }
2356 
2357 /* Relocate an M32R/D ELF section.
2358    There is some attempt to make this function usable for many architectures,
2359    both for RELA and REL type relocs, if only to serve as a learning tool.
2360 
2361    The RELOCATE_SECTION function is called by the new ELF backend linker
2362    to handle the relocations for a section.
2363 
2364    The relocs are always passed as Rela structures; if the section
2365    actually uses Rel structures, the r_addend field will always be
2366    zero.
2367 
2368    This function is responsible for adjust the section contents as
2369    necessary, and (if using Rela relocs and generating a
2370    relocatable output file) adjusting the reloc addend as
2371    necessary.
2372 
2373    This function does not have to worry about setting the reloc
2374    address or the reloc symbol index.
2375 
2376    LOCAL_SYMS is a pointer to the swapped in local symbols.
2377 
2378    LOCAL_SECTIONS is an array giving the section in the input file
2379    corresponding to the st_shndx field of each local symbol.
2380 
2381    The global hash table entry for the global symbols can be found
2382    via elf_sym_hashes (input_bfd).
2383 
2384    When generating relocatable output, this function must handle
2385    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2386    going to be the section symbol corresponding to the output
2387    section, which means that the addend must be adjusted
2388    accordingly.  */
2389 
2390 static bfd_boolean
m32r_elf_relocate_section(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info,bfd * input_bfd,asection * input_section,bfd_byte * contents,Elf_Internal_Rela * relocs,Elf_Internal_Sym * local_syms,asection ** local_sections)2391 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2392 			   struct bfd_link_info *info,
2393 			   bfd *input_bfd,
2394 			   asection *input_section,
2395 			   bfd_byte *contents,
2396 			   Elf_Internal_Rela *relocs,
2397 			   Elf_Internal_Sym *local_syms,
2398 			   asection **local_sections)
2399 {
2400   Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2401   struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2402   Elf_Internal_Rela *rel, *relend;
2403   /* Assume success.  */
2404   bfd_boolean ret = TRUE;
2405   struct elf_m32r_link_hash_table *htab = m32r_elf_hash_table (info);
2406   bfd *dynobj;
2407   bfd_vma *local_got_offsets;
2408   asection *sgot, *splt, *sreloc;
2409   bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2410 
2411   if (htab == NULL)
2412     return FALSE;
2413 
2414   dynobj = htab->root.dynobj;
2415   local_got_offsets = elf_local_got_offsets (input_bfd);
2416 
2417   sgot = htab->sgot;
2418   splt = htab->splt;
2419   sreloc = NULL;
2420 
2421   rel = relocs;
2422   relend = relocs + input_section->reloc_count;
2423   for (; rel < relend; rel++)
2424     {
2425       int r_type;
2426       reloc_howto_type *howto;
2427       unsigned long r_symndx;
2428       struct elf_link_hash_entry *h;
2429       /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2430          ensure it's zero (we use REL relocs, not RELA).  Therefore this
2431          should be assigning zero to `addend', but for clarity we use
2432          `r_addend'.  */
2433       bfd_vma addend = rel->r_addend;
2434       bfd_vma offset = rel->r_offset;
2435       bfd_vma relocation;
2436       Elf_Internal_Sym *sym;
2437       asection *sec;
2438       const char *sym_name;
2439       bfd_reloc_status_type r;
2440       const char *errmsg = NULL;
2441       bfd_boolean use_rel = FALSE;
2442 
2443       h = NULL;
2444       r_type = ELF32_R_TYPE (rel->r_info);
2445       if (r_type < 0 || r_type >= (int) R_M32R_max)
2446 	{
2447 	  (*_bfd_error_handler) (_("%B: unknown relocation type %d"),
2448 				 input_bfd,
2449 				 (int) r_type);
2450 	  bfd_set_error (bfd_error_bad_value);
2451 	  ret = FALSE;
2452 	  continue;
2453 	}
2454 
2455       if (   r_type == R_M32R_GNU_VTENTRY
2456           || r_type == R_M32R_GNU_VTINHERIT
2457           || r_type == R_M32R_NONE
2458           || r_type == R_M32R_RELA_GNU_VTENTRY
2459           || r_type == R_M32R_RELA_GNU_VTINHERIT)
2460         continue;
2461 
2462       if (r_type <= R_M32R_GNU_VTENTRY)
2463         use_rel = TRUE;
2464 
2465       howto = m32r_elf_howto_table + r_type;
2466       r_symndx = ELF32_R_SYM (rel->r_info);
2467 
2468       sym = NULL;
2469       sec = NULL;
2470       h = NULL;
2471 
2472       if (r_symndx < symtab_hdr->sh_info)
2473 	{
2474 	  /* Local symbol.  */
2475 	  sym = local_syms + r_symndx;
2476 	  sec = local_sections[r_symndx];
2477 	  sym_name = "<local symbol>";
2478 
2479 	  if (!use_rel)
2480 	    {
2481 	      relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2482 	      addend = rel->r_addend;
2483 	    }
2484 	  else
2485 	    {
2486 	      relocation = (sec->output_section->vma
2487 			    + sec->output_offset
2488 			    + sym->st_value);
2489 	    }
2490 	}
2491       else
2492 	{
2493 	  /* External symbol.  */
2494 	  relocation = 0;
2495 
2496 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2497 
2498 	  if (info->wrap_hash != NULL
2499 	      && (input_section->flags & SEC_DEBUGGING) != 0)
2500 	    h = ((struct elf_link_hash_entry *)
2501 		 unwrap_hash_lookup (info, input_bfd, &h->root));
2502 
2503 	  while (h->root.type == bfd_link_hash_indirect
2504 		 || h->root.type == bfd_link_hash_warning)
2505 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2506 	  sym_name = h->root.root.string;
2507 
2508 	  if (h->root.type == bfd_link_hash_defined
2509 	      || h->root.type == bfd_link_hash_defweak)
2510 	    {
2511 	      bfd_boolean dyn;
2512 	      sec = h->root.u.def.section;
2513 
2514 	      dyn = htab->root.dynamic_sections_created;
2515 	      sec = h->root.u.def.section;
2516 	      if (r_type == R_M32R_GOTPC24
2517 		  || (r_type == R_M32R_GOTPC_HI_ULO
2518 		      || r_type == R_M32R_GOTPC_HI_SLO
2519 		      || r_type == R_M32R_GOTPC_LO)
2520 		  || (r_type == R_M32R_26_PLTREL
2521 		      && h->plt.offset != (bfd_vma) -1)
2522 		  || ((r_type == R_M32R_GOT24
2523 		       || r_type == R_M32R_GOT16_HI_ULO
2524 		       || r_type == R_M32R_GOT16_HI_SLO
2525 		       || r_type == R_M32R_GOT16_LO)
2526 		      && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2527 							  bfd_link_pic (info),
2528 							  h)
2529 		      && (! bfd_link_pic (info)
2530 			  || (! info->symbolic && h->dynindx != -1)
2531 			  || !h->def_regular))
2532 		  || (bfd_link_pic (info)
2533 		      && ((! info->symbolic && h->dynindx != -1)
2534 			  || !h->def_regular)
2535 		      && (((r_type == R_M32R_16_RELA
2536 			    || r_type == R_M32R_32_RELA
2537 			    || r_type == R_M32R_24_RELA
2538 			    || r_type == R_M32R_HI16_ULO_RELA
2539 			    || r_type == R_M32R_HI16_SLO_RELA
2540 			    || r_type == R_M32R_LO16_RELA)
2541 			   && !h->forced_local)
2542 			  || r_type == R_M32R_REL32
2543 			  || r_type == R_M32R_10_PCREL_RELA
2544 			  || r_type == R_M32R_18_PCREL_RELA
2545 			  || r_type == R_M32R_26_PCREL_RELA)
2546 		      && ((input_section->flags & SEC_ALLOC) != 0
2547 			  /* DWARF will emit R_M32R_16(24,32) relocations
2548 			     in its sections against symbols defined
2549 			     externally in shared libraries.  We can't do
2550 			     anything with them here.  */
2551 			  || ((input_section->flags & SEC_DEBUGGING) != 0
2552 			      && h->def_dynamic))))
2553 		{
2554 		  /* In these cases, we don't need the relocation
2555 		     value.  We check specially because in some
2556 		     obscure cases sec->output_section will be NULL.  */
2557 		}
2558 	      else if (sec->output_section != NULL)
2559 		relocation = (h->root.u.def.value
2560 			      + sec->output_section->vma
2561 			      + sec->output_offset);
2562 	      else if (!bfd_link_relocatable (info)
2563 		       && (_bfd_elf_section_offset (output_bfd, info,
2564 						    input_section,
2565 						    rel->r_offset)
2566 			   != (bfd_vma) -1))
2567 		{
2568 		  (*_bfd_error_handler)
2569 		    (_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
2570 		     input_bfd,
2571 		     input_section,
2572 		     (long) rel->r_offset,
2573 		     howto->name,
2574 		     h->root.root.string);
2575 		}
2576 	    }
2577 	  else if (h->root.type == bfd_link_hash_undefweak)
2578 	    ;
2579 	  else if (info->unresolved_syms_in_objects == RM_IGNORE
2580 		   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2581 	    ;
2582 	  else if (!bfd_link_relocatable (info))
2583 	    (*info->callbacks->undefined_symbol)
2584 	      (info, h->root.root.string, input_bfd,
2585 	       input_section, offset,
2586 	       (info->unresolved_syms_in_objects == RM_GENERATE_ERROR
2587 		|| ELF_ST_VISIBILITY (h->other)));
2588 	}
2589 
2590       if (sec != NULL && discarded_section (sec))
2591 	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2592 					 rel, 1, relend, howto, 0, contents);
2593 
2594       if (bfd_link_relocatable (info) && !use_rel)
2595 	{
2596 	  /* This is a relocatable link.  We don't have to change
2597 	     anything, unless the reloc is against a section symbol,
2598 	     in which case we have to adjust according to where the
2599 	     section symbol winds up in the output section.  */
2600 	  if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2601 	    rel->r_addend += sec->output_offset;
2602 	  continue;
2603 	}
2604 
2605       if (bfd_link_relocatable (info) && use_rel)
2606 	{
2607 	  /* This is a relocatable link.  We don't have to change
2608 	     anything, unless the reloc is against a section symbol,
2609 	     in which case we have to adjust according to where the
2610 	     section symbol winds up in the output section.  */
2611 	  if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2612 	    continue;
2613 
2614 	  addend += sec->output_offset;
2615 
2616 	  /* If partial_inplace, we need to store any additional addend
2617 	     back in the section.  */
2618 	  if (! howto->partial_inplace)
2619 	    continue;
2620 	  /* ??? Here is a nice place to call a special_function
2621 	     like handler.  */
2622 	  if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2623 	    r = _bfd_relocate_contents (howto, input_bfd,
2624 					addend, contents + offset);
2625 	  else
2626 	    {
2627 	      Elf_Internal_Rela *lorel;
2628 
2629 	      /* We allow an arbitrary number of HI16 relocs before the
2630 		 LO16 reloc.  This permits gcc to emit the HI and LO relocs
2631 		 itself.  */
2632 	      for (lorel = rel + 1;
2633 		   (lorel < relend
2634 		    && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2635 			|| ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2636 		   lorel++)
2637 		continue;
2638 	      if (lorel < relend
2639 		  && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2640 		{
2641 		  m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2642 					  contents, addend);
2643 		  r = bfd_reloc_ok;
2644 		}
2645 	      else
2646 		r = _bfd_relocate_contents (howto, input_bfd,
2647 					    addend, contents + offset);
2648 	    }
2649 	}
2650       else
2651 	{
2652 	  /* Sanity check the address.  */
2653 	  if (offset > high_address)
2654 	    {
2655 	      r = bfd_reloc_outofrange;
2656 	      goto check_reloc;
2657 	    }
2658 
2659 	  switch ((int) r_type)
2660 	    {
2661             case R_M32R_GOTOFF:
2662               /* Relocation is relative to the start of the global offset
2663                  table (for ld24 rx, #uimm24). eg access at label+addend
2664 
2665                  ld24 rx. #label@GOTOFF + addend
2666                  sub  rx, r12.  */
2667 
2668               BFD_ASSERT (sgot != NULL);
2669 
2670               relocation = -(relocation - sgot->output_section->vma);
2671               rel->r_addend = -rel->r_addend;
2672               break;
2673 
2674             case R_M32R_GOTOFF_HI_ULO:
2675             case R_M32R_GOTOFF_HI_SLO:
2676             case R_M32R_GOTOFF_LO:
2677 	      BFD_ASSERT (sgot != NULL);
2678 
2679 	      relocation -= sgot->output_section->vma;
2680 
2681 	      if ((r_type == R_M32R_GOTOFF_HI_SLO)
2682 		  && ((relocation + rel->r_addend) & 0x8000))
2683 		rel->r_addend += 0x10000;
2684 	      break;
2685 
2686             case R_M32R_GOTPC24:
2687               /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2688                  ld24 rx,#_GLOBAL_OFFSET_TABLE_
2689                */
2690              relocation = sgot->output_section->vma;
2691              break;
2692 
2693             case R_M32R_GOTPC_HI_ULO:
2694             case R_M32R_GOTPC_HI_SLO:
2695             case R_M32R_GOTPC_LO:
2696               {
2697                 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2698                    bl .+4
2699                    seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2700                    or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2701                    or
2702                    bl .+4
2703                    seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2704                    add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2705                  */
2706                 relocation = sgot->output_section->vma;
2707                 relocation -= (input_section->output_section->vma
2708                                + input_section->output_offset
2709                                + rel->r_offset);
2710                 if ((r_type == R_M32R_GOTPC_HI_SLO)
2711                      && ((relocation + rel->r_addend) & 0x8000))
2712                   rel->r_addend += 0x10000;
2713 
2714                 break;
2715               }
2716             case R_M32R_GOT16_HI_ULO:
2717             case R_M32R_GOT16_HI_SLO:
2718             case R_M32R_GOT16_LO:
2719               /* Fall through.  */
2720             case R_M32R_GOT24:
2721               /* Relocation is to the entry for this symbol in the global
2722                  offset table.  */
2723               BFD_ASSERT (sgot != NULL);
2724 
2725               if (h != NULL)
2726                 {
2727                   bfd_boolean dyn;
2728                   bfd_vma off;
2729 
2730                   off = h->got.offset;
2731                   BFD_ASSERT (off != (bfd_vma) -1);
2732 
2733                   dyn = htab->root.dynamic_sections_created;
2734                   if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2735 							 bfd_link_pic (info),
2736 							 h)
2737                       || (bfd_link_pic (info)
2738                           && (info->symbolic
2739                               || h->dynindx == -1
2740                               || h->forced_local)
2741                           && h->def_regular))
2742                     {
2743                       /* This is actually a static link, or it is a
2744                          -Bsymbolic link and the symbol is defined
2745                          locally, or the symbol was forced to be local
2746                          because of a version file.  We must initialize
2747                          this entry in the global offset table.  Since the
2748                          offset must always be a multiple of 4, we use the
2749                          least significant bit to record whether we have
2750                          initialized it already.
2751 
2752                          When doing a dynamic link, we create a .rela.got
2753                          relocation entry to initialize the value.  This
2754                          is done in the finish_dynamic_symbol routine.  */
2755                       if ((off & 1) != 0)
2756                         off &= ~1;
2757                       else
2758                         {
2759                           bfd_put_32 (output_bfd, relocation,
2760                                       sgot->contents + off);
2761                           h->got.offset |= 1;
2762                         }
2763                     }
2764 
2765                   relocation = sgot->output_offset + off;
2766                 }
2767               else
2768                 {
2769                   bfd_vma off;
2770                   bfd_byte *loc;
2771 
2772                   BFD_ASSERT (local_got_offsets != NULL
2773                               && local_got_offsets[r_symndx] != (bfd_vma) -1);
2774 
2775                   off = local_got_offsets[r_symndx];
2776 
2777                   /* The offset must always be a multiple of 4.  We use
2778                      the least significant bit to record whether we have
2779                      already processed this entry.  */
2780                   if ((off & 1) != 0)
2781                     off &= ~1;
2782                   else
2783                     {
2784                       bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2785 
2786                       if (bfd_link_pic (info))
2787                         {
2788                           asection *srelgot;
2789                           Elf_Internal_Rela outrel;
2790 
2791                           /* We need to generate a R_M32R_RELATIVE reloc
2792                              for the dynamic linker.  */
2793                           srelgot = bfd_get_linker_section (dynobj,
2794 							    ".rela.got");
2795                           BFD_ASSERT (srelgot != NULL);
2796 
2797                           outrel.r_offset = (sgot->output_section->vma
2798                                              + sgot->output_offset
2799                                              + off);
2800                           outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2801                           outrel.r_addend = relocation;
2802                           loc = srelgot->contents;
2803                           loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2804                           bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2805                           ++srelgot->reloc_count;
2806                         }
2807 
2808                       local_got_offsets[r_symndx] |= 1;
2809                     }
2810 
2811                   relocation = sgot->output_offset + off;
2812                 }
2813               if ((r_type == R_M32R_GOT16_HI_SLO)
2814                   && ((relocation + rel->r_addend) & 0x8000))
2815                 rel->r_addend += 0x10000;
2816 
2817               break;
2818 
2819             case R_M32R_26_PLTREL:
2820               /* Relocation is to the entry for this symbol in the
2821                  procedure linkage table.  */
2822 
2823               /* The native assembler will generate a 26_PLTREL reloc
2824                  for a local symbol if you assemble a call from one
2825                  section to another when using -K pic. */
2826               if (h == NULL)
2827                 break;
2828 
2829               if (h->forced_local)
2830                 break;
2831 
2832               if (h->plt.offset == (bfd_vma) -1)
2833 		/* We didn't make a PLT entry for this symbol.  This
2834 		   happens when statically linking PIC code, or when
2835 		   using -Bsymbolic.  */
2836 		break;
2837 
2838               relocation = (splt->output_section->vma
2839                             + splt->output_offset
2840                             + h->plt.offset);
2841               break;
2842 
2843             case R_M32R_HI16_SLO_RELA:
2844 	      if ((relocation + rel->r_addend) & 0x8000)
2845 		rel->r_addend += 0x10000;
2846               /* Fall through.  */
2847 
2848             case R_M32R_16_RELA:
2849             case R_M32R_24_RELA:
2850             case R_M32R_32_RELA:
2851             case R_M32R_REL32:
2852 	    case R_M32R_10_PCREL_RELA:
2853             case R_M32R_18_PCREL_RELA:
2854             case R_M32R_26_PCREL_RELA:
2855             case R_M32R_HI16_ULO_RELA:
2856             case R_M32R_LO16_RELA:
2857               if (bfd_link_pic (info)
2858                   && r_symndx != STN_UNDEF
2859                   && (input_section->flags & SEC_ALLOC) != 0
2860                   && ((   r_type != R_M32R_10_PCREL_RELA
2861                        && r_type != R_M32R_18_PCREL_RELA
2862                        && r_type != R_M32R_26_PCREL_RELA
2863                        && r_type != R_M32R_REL32)
2864                       || (h != NULL
2865                           && h->dynindx != -1
2866                           && (! info->symbolic
2867                               || !h->def_regular))))
2868                 {
2869                   Elf_Internal_Rela outrel;
2870                   bfd_boolean skip, relocate;
2871                   bfd_byte *loc;
2872 
2873                   /* When generating a shared object, these relocations
2874                      are copied into the output file to be resolved at run
2875                      time.  */
2876                   if (sreloc == NULL)
2877                     {
2878 		      sreloc = _bfd_elf_get_dynamic_reloc_section
2879 			(input_bfd, input_section, /*rela?*/ TRUE);
2880 		      if (sreloc == NULL)
2881 			return FALSE;
2882                     }
2883 
2884                   skip = FALSE;
2885                   relocate = FALSE;
2886 
2887                   outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2888                                                              info,
2889                                                              input_section,
2890                                                              rel->r_offset);
2891                   if (outrel.r_offset == (bfd_vma) -1)
2892                     skip = TRUE;
2893                   else if (outrel.r_offset == (bfd_vma) -2)
2894                     skip = relocate = TRUE;
2895                   outrel.r_offset += (input_section->output_section->vma
2896                                       + input_section->output_offset);
2897 
2898                   if (skip)
2899                     memset (&outrel, 0, sizeof outrel);
2900                   else if (   r_type == R_M32R_10_PCREL_RELA
2901                            || r_type == R_M32R_18_PCREL_RELA
2902                            || r_type == R_M32R_26_PCREL_RELA
2903                            || r_type == R_M32R_REL32)
2904                     {
2905                       BFD_ASSERT (h != NULL && h->dynindx != -1);
2906                       outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2907                       outrel.r_addend = rel->r_addend;
2908                     }
2909                   else
2910                     {
2911                     /* h->dynindx may be -1 if this symbol was marked to
2912                        become local.  */
2913                     if (h == NULL
2914                         || ((info->symbolic || h->dynindx == -1)
2915                              && h->def_regular))
2916                       {
2917                         relocate = TRUE;
2918                         outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2919                         outrel.r_addend = relocation + rel->r_addend;
2920                       }
2921                     else
2922                       {
2923                         BFD_ASSERT (h->dynindx != -1);
2924                         outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2925                         outrel.r_addend = relocation + rel->r_addend;
2926                       }
2927                     }
2928 
2929                   loc = sreloc->contents;
2930                   loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2931                   bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2932                   ++sreloc->reloc_count;
2933 
2934                   /* If this reloc is against an external symbol, we do
2935                      not want to fiddle with the addend.  Otherwise, we
2936                      need to include the symbol value so that it becomes
2937                      an addend for the dynamic reloc.  */
2938                   if (! relocate)
2939                     continue;
2940 		  break;
2941                 }
2942 	      else if (r_type != R_M32R_10_PCREL_RELA)
2943 		break;
2944 	      /* Fall through.  */
2945 
2946 	    case (int) R_M32R_10_PCREL :
2947 	      r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2948 					      contents, offset,
2949 					      sec, relocation, addend);
2950               goto check_reloc;
2951 
2952 	    case (int) R_M32R_HI16_SLO :
2953 	    case (int) R_M32R_HI16_ULO :
2954 	      {
2955 		Elf_Internal_Rela *lorel;
2956 
2957 		/* We allow an arbitrary number of HI16 relocs before the
2958 		   LO16 reloc.  This permits gcc to emit the HI and LO relocs
2959 		   itself.  */
2960 		for (lorel = rel + 1;
2961 		     (lorel < relend
2962 		      && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2963 			  || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2964 		     lorel++)
2965 		  continue;
2966 		if (lorel < relend
2967 		    && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2968 		  {
2969 		    m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2970 					    contents, relocation + addend);
2971 		    r = bfd_reloc_ok;
2972 		  }
2973 		else
2974 		  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2975 						contents, offset,
2976 						relocation, addend);
2977 	      }
2978 
2979               goto check_reloc;
2980 
2981             case (int) R_M32R_SDA16_RELA:
2982 	    case (int) R_M32R_SDA16 :
2983 	      {
2984 		const char *name;
2985 
2986 		BFD_ASSERT (sec != NULL);
2987 		name = bfd_get_section_name (sec->owner, sec);
2988 
2989 		if (   strcmp (name, ".sdata") == 0
2990 		    || strcmp (name, ".sbss") == 0
2991 		    || strcmp (name, ".scommon") == 0)
2992 		  {
2993 		    bfd_vma sda_base;
2994 		    bfd *out_bfd = sec->output_section->owner;
2995 
2996 		    r = m32r_elf_final_sda_base (out_bfd, info,
2997 						 &errmsg,
2998 						 &sda_base);
2999 		    if (r != bfd_reloc_ok)
3000 		      {
3001 			ret = FALSE;
3002 			goto check_reloc;
3003 		      }
3004 
3005 		    /* At this point `relocation' contains the object's
3006 		       address.  */
3007 		    relocation -= sda_base;
3008 		    /* Now it contains the offset from _SDA_BASE_.  */
3009 		  }
3010 		else
3011 		  {
3012 		    (*_bfd_error_handler)
3013 		      (_("%B: The target (%s) of an %s relocation is in the wrong section (%A)"),
3014 		       input_bfd,
3015 		       sec,
3016 		       sym_name,
3017 		       m32r_elf_howto_table[(int) r_type].name);
3018 		    /*bfd_set_error (bfd_error_bad_value); ??? why? */
3019 		    ret = FALSE;
3020 		    continue;
3021 		  }
3022 	      }
3023               /* Fall through.  */
3024 
3025 	    default : /* OLD_M32R_RELOC */
3026 
3027 	      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3028 					    contents, offset,
3029 					    relocation, addend);
3030 	      goto check_reloc;
3031 	    }
3032 
3033           r = _bfd_final_link_relocate (howto, input_bfd, input_section,
3034                                         contents, rel->r_offset,
3035                                         relocation, rel->r_addend);
3036 
3037 	}
3038 
3039     check_reloc:
3040 
3041       if (r != bfd_reloc_ok)
3042 	{
3043 	  /* FIXME: This should be generic enough to go in a utility.  */
3044 	  const char *name;
3045 
3046 	  if (h != NULL)
3047 	    name = h->root.root.string;
3048 	  else
3049 	    {
3050 	      name = (bfd_elf_string_from_elf_section
3051 		      (input_bfd, symtab_hdr->sh_link, sym->st_name));
3052 	      if (name == NULL || *name == '\0')
3053 		name = bfd_section_name (input_bfd, sec);
3054 	    }
3055 
3056 	  if (errmsg != NULL)
3057 	    goto common_error;
3058 
3059 	  switch (r)
3060 	    {
3061 	    case bfd_reloc_overflow:
3062 	      (*info->callbacks->reloc_overflow)
3063 		(info, (h ? &h->root : NULL), name, howto->name,
3064 		 (bfd_vma) 0, input_bfd, input_section, offset);
3065 	      break;
3066 
3067 	    case bfd_reloc_undefined:
3068 	      (*info->callbacks->undefined_symbol)
3069 		(info, name, input_bfd, input_section, offset, TRUE);
3070 	      break;
3071 
3072 	    case bfd_reloc_outofrange:
3073 	      errmsg = _("internal error: out of range error");
3074 	      goto common_error;
3075 
3076 	    case bfd_reloc_notsupported:
3077 	      errmsg = _("internal error: unsupported relocation error");
3078 	      goto common_error;
3079 
3080 	    case bfd_reloc_dangerous:
3081 	      errmsg = _("internal error: dangerous error");
3082 	      goto common_error;
3083 
3084 	    default:
3085 	      errmsg = _("internal error: unknown error");
3086 	      /* fall through */
3087 
3088 	    common_error:
3089 	      (*info->callbacks->warning) (info, errmsg, name, input_bfd,
3090 					   input_section, offset);
3091 	      break;
3092 	    }
3093 	}
3094     }
3095 
3096   return ret;
3097 }
3098 
3099 /* Finish up dynamic symbol handling.  We set the contents of various
3100    dynamic sections here.  */
3101 
3102 static bfd_boolean
m32r_elf_finish_dynamic_symbol(bfd * output_bfd,struct bfd_link_info * info,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)3103 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
3104 				struct bfd_link_info *info,
3105 				struct elf_link_hash_entry *h,
3106 				Elf_Internal_Sym *sym)
3107 {
3108   struct elf_m32r_link_hash_table *htab;
3109   bfd_byte *loc;
3110 
3111 #ifdef DEBUG_PIC
3112   printf ("m32r_elf_finish_dynamic_symbol()\n");
3113 #endif
3114 
3115   htab = m32r_elf_hash_table (info);
3116   if (htab == NULL)
3117     return FALSE;
3118 
3119   if (h->plt.offset != (bfd_vma) -1)
3120     {
3121       asection *splt;
3122       asection *sgot;
3123       asection *srela;
3124 
3125       bfd_vma plt_index;
3126       bfd_vma got_offset;
3127       Elf_Internal_Rela rela;
3128 
3129       /* This symbol has an entry in the procedure linkage table.  Set
3130          it up.  */
3131 
3132       BFD_ASSERT (h->dynindx != -1);
3133 
3134       splt = htab->splt;
3135       sgot = htab->sgotplt;
3136       srela = htab->srelplt;
3137       BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
3138 
3139       /* Get the index in the procedure linkage table which
3140          corresponds to this symbol.  This is the index of this symbol
3141          in all the symbols for which we are making plt entries.  The
3142          first entry in the procedure linkage table is reserved.  */
3143       plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
3144 
3145       /* Get the offset into the .got table of the entry that
3146         corresponds to this function.  Each .got entry is 4 bytes.
3147         The first three are reserved.  */
3148       got_offset = (plt_index + 3) * 4;
3149 
3150       /* Fill in the entry in the procedure linkage table.  */
3151       if (! bfd_link_pic (info))
3152         {
3153           bfd_put_32 (output_bfd,
3154               (PLT_ENTRY_WORD0b
3155                + (((sgot->output_section->vma
3156                     + sgot->output_offset
3157                     + got_offset) >> 16) & 0xffff)),
3158               splt->contents + h->plt.offset);
3159           bfd_put_32 (output_bfd,
3160               (PLT_ENTRY_WORD1b
3161                + ((sgot->output_section->vma
3162                    + sgot->output_offset
3163                    + got_offset) & 0xffff)),
3164               splt->contents + h->plt.offset + 4);
3165           bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3166               splt->contents + h->plt.offset + 8);
3167           bfd_put_32 (output_bfd,
3168               (PLT_ENTRY_WORD3
3169                + plt_index * sizeof (Elf32_External_Rela)),
3170               splt->contents + h->plt.offset + 12);
3171           bfd_put_32 (output_bfd,
3172               (PLT_ENTRY_WORD4
3173                + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3174               splt->contents + h->plt.offset + 16);
3175         }
3176       else
3177         {
3178           bfd_put_32 (output_bfd,
3179               PLT_ENTRY_WORD0 + got_offset,
3180               splt->contents + h->plt.offset);
3181           bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
3182               splt->contents + h->plt.offset + 4);
3183           bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
3184               splt->contents + h->plt.offset + 8);
3185           bfd_put_32 (output_bfd,
3186               (PLT_ENTRY_WORD3
3187                + plt_index * sizeof (Elf32_External_Rela)),
3188               splt->contents + h->plt.offset + 12);
3189           bfd_put_32 (output_bfd,
3190               (PLT_ENTRY_WORD4
3191                + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
3192               splt->contents + h->plt.offset + 16);
3193         }
3194 
3195       /* Fill in the entry in the global offset table.  */
3196       bfd_put_32 (output_bfd,
3197                   (splt->output_section->vma
3198                    + splt->output_offset
3199                    + h->plt.offset
3200                    + 12), /* same offset */
3201                   sgot->contents + got_offset);
3202 
3203       /* Fill in the entry in the .rela.plt section.  */
3204       rela.r_offset = (sgot->output_section->vma
3205                        + sgot->output_offset
3206                        + got_offset);
3207       rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
3208       rela.r_addend = 0;
3209       loc = srela->contents;
3210       loc += plt_index * sizeof (Elf32_External_Rela);
3211       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3212 
3213       if (!h->def_regular)
3214         {
3215           /* Mark the symbol as undefined, rather than as defined in
3216              the .plt section.  Leave the value alone.  */
3217           sym->st_shndx = SHN_UNDEF;
3218         }
3219     }
3220 
3221   if (h->got.offset != (bfd_vma) -1)
3222     {
3223       asection *sgot;
3224       asection *srela;
3225       Elf_Internal_Rela rela;
3226 
3227       /* This symbol has an entry in the global offset table.  Set it
3228          up.  */
3229 
3230       sgot = htab->sgot;
3231       srela = htab->srelgot;
3232       BFD_ASSERT (sgot != NULL && srela != NULL);
3233 
3234       rela.r_offset = (sgot->output_section->vma
3235                        + sgot->output_offset
3236                        + (h->got.offset &~ 1));
3237 
3238       /* If this is a -Bsymbolic link, and the symbol is defined
3239          locally, we just want to emit a RELATIVE reloc.  Likewise if
3240          the symbol was forced to be local because of a version file.
3241          The entry in the global offset table will already have been
3242          initialized in the relocate_section function.  */
3243       if (bfd_link_pic (info)
3244           && (info->symbolic
3245 	      || h->dynindx == -1
3246 	      || h->forced_local)
3247           && h->def_regular)
3248         {
3249           rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3250           rela.r_addend = (h->root.u.def.value
3251                            + h->root.u.def.section->output_section->vma
3252                            + h->root.u.def.section->output_offset);
3253         }
3254       else
3255         {
3256 	  BFD_ASSERT ((h->got.offset & 1) == 0);
3257           bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3258           rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3259           rela.r_addend = 0;
3260         }
3261 
3262       loc = srela->contents;
3263       loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3264       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3265       ++srela->reloc_count;
3266     }
3267 
3268   if (h->needs_copy)
3269     {
3270       asection *s;
3271       Elf_Internal_Rela rela;
3272 
3273       /* This symbols needs a copy reloc.  Set it up.  */
3274 
3275       BFD_ASSERT (h->dynindx != -1
3276                   && (h->root.type == bfd_link_hash_defined
3277                       || h->root.type == bfd_link_hash_defweak));
3278 
3279       s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss");
3280       BFD_ASSERT (s != NULL);
3281 
3282       rela.r_offset = (h->root.u.def.value
3283                        + h->root.u.def.section->output_section->vma
3284                        + h->root.u.def.section->output_offset);
3285       rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3286       rela.r_addend = 0;
3287       loc = s->contents;
3288       loc += s->reloc_count * sizeof (Elf32_External_Rela);
3289       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3290       ++s->reloc_count;
3291     }
3292 
3293   /* Mark some specially defined symbols as absolute.  */
3294   if (h == htab->root.hdynamic || h == htab->root.hgot)
3295     sym->st_shndx = SHN_ABS;
3296 
3297   return TRUE;
3298 }
3299 
3300 
3301 /* Finish up the dynamic sections.  */
3302 
3303 static bfd_boolean
m32r_elf_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3304 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3305 				  struct bfd_link_info *info)
3306 {
3307   struct elf_m32r_link_hash_table *htab;
3308   bfd *dynobj;
3309   asection *sdyn;
3310   asection *sgot;
3311 
3312 #ifdef DEBUG_PIC
3313   printf ("m32r_elf_finish_dynamic_sections()\n");
3314 #endif
3315 
3316   htab = m32r_elf_hash_table (info);
3317   if (htab == NULL)
3318     return FALSE;
3319 
3320   dynobj = htab->root.dynobj;
3321 
3322   sgot = htab->sgotplt;
3323   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3324 
3325   if (htab->root.dynamic_sections_created)
3326     {
3327       asection *splt;
3328       Elf32_External_Dyn *dyncon, *dynconend;
3329 
3330       BFD_ASSERT (sgot != NULL && sdyn != NULL);
3331 
3332       dyncon = (Elf32_External_Dyn *) sdyn->contents;
3333       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3334 
3335       for (; dyncon < dynconend; dyncon++)
3336         {
3337           Elf_Internal_Dyn dyn;
3338           asection *s;
3339 
3340           bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3341 
3342           switch (dyn.d_tag)
3343             {
3344             default:
3345               break;
3346 
3347             case DT_PLTGOT:
3348               s = htab->sgotplt;
3349               goto get_vma;
3350             case DT_JMPREL:
3351               s = htab->srelplt;
3352             get_vma:
3353               dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3354               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3355               break;
3356 
3357             case DT_PLTRELSZ:
3358               s = htab->srelplt;
3359 	      dyn.d_un.d_val = s->size;
3360               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3361               break;
3362 
3363             case DT_RELASZ:
3364               /* My reading of the SVR4 ABI indicates that the
3365                  procedure linkage table relocs (DT_JMPREL) should be
3366                  included in the overall relocs (DT_RELA).  This is
3367                  what Solaris does.  However, UnixWare can not handle
3368                  that case.  Therefore, we override the DT_RELASZ entry
3369                  here to make it not include the JMPREL relocs.  Since
3370                  the linker script arranges for .rela.plt to follow all
3371                  other relocation sections, we don't have to worry
3372                  about changing the DT_RELA entry.  */
3373               if (htab->srelplt != NULL)
3374                 {
3375                   s = htab->srelplt;
3376 		  dyn.d_un.d_val -= s->size;
3377                 }
3378               bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3379               break;
3380             }
3381         }
3382 
3383       /* Fill in the first entry in the procedure linkage table.  */
3384       splt = htab->splt;
3385       if (splt && splt->size > 0)
3386         {
3387           if (bfd_link_pic (info))
3388             {
3389               bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3390               bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3391               bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3392               bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3393               bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3394             }
3395           else
3396             {
3397               unsigned long addr;
3398               /* addr = .got + 4 */
3399               addr = sgot->output_section->vma + sgot->output_offset + 4;
3400               bfd_put_32 (output_bfd,
3401 			  PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3402 			  splt->contents);
3403               bfd_put_32 (output_bfd,
3404 			  PLT0_ENTRY_WORD1 | (addr & 0xffff),
3405 			  splt->contents + 4);
3406               bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3407               bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3408               bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3409             }
3410 
3411           elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3412             PLT_ENTRY_SIZE;
3413         }
3414     }
3415 
3416   /* Fill in the first three entries in the global offset table.  */
3417   if (sgot && sgot->size > 0)
3418     {
3419       if (sdyn == NULL)
3420         bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3421       else
3422         bfd_put_32 (output_bfd,
3423                     sdyn->output_section->vma + sdyn->output_offset,
3424                     sgot->contents);
3425       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3426       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3427 
3428       elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3429     }
3430 
3431   return TRUE;
3432 }
3433 
3434 
3435 /* Set the right machine number.  */
3436 
3437 static bfd_boolean
m32r_elf_object_p(bfd * abfd)3438 m32r_elf_object_p (bfd *abfd)
3439 {
3440   switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3441     {
3442     default:
3443     case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3444     case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3445     case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3446     }
3447   return TRUE;
3448 }
3449 
3450 /* Store the machine number in the flags field.  */
3451 
3452 static void
m32r_elf_final_write_processing(bfd * abfd,bfd_boolean linker ATTRIBUTE_UNUSED)3453 m32r_elf_final_write_processing (bfd *abfd,
3454 				 bfd_boolean linker ATTRIBUTE_UNUSED)
3455 {
3456   unsigned long val;
3457 
3458   switch (bfd_get_mach (abfd))
3459     {
3460     default:
3461     case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3462     case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3463     case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3464     }
3465 
3466   elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3467   elf_elfheader (abfd)->e_flags |= val;
3468 }
3469 
3470 /* Function to keep M32R specific file flags.  */
3471 
3472 static bfd_boolean
m32r_elf_set_private_flags(bfd * abfd,flagword flags)3473 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3474 {
3475   BFD_ASSERT (!elf_flags_init (abfd)
3476 	      || elf_elfheader (abfd)->e_flags == flags);
3477 
3478   elf_elfheader (abfd)->e_flags = flags;
3479   elf_flags_init (abfd) = TRUE;
3480   return TRUE;
3481 }
3482 
3483 /* Merge backend specific data from an object file to the output
3484    object file when linking.  */
3485 
3486 static bfd_boolean
m32r_elf_merge_private_bfd_data(bfd * ibfd,bfd * obfd)3487 m32r_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
3488 {
3489   flagword out_flags;
3490   flagword in_flags;
3491 
3492   if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3493       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3494     return TRUE;
3495 
3496   in_flags  = elf_elfheader (ibfd)->e_flags;
3497   out_flags = elf_elfheader (obfd)->e_flags;
3498 
3499   if (! elf_flags_init (obfd))
3500     {
3501       /* If the input is the default architecture then do not
3502 	 bother setting the flags for the output architecture,
3503 	 instead allow future merges to do this.  If no future
3504 	 merges ever set these flags then they will retain their
3505 	 unitialised values, which surprise surprise, correspond
3506 	 to the default values.  */
3507       if (bfd_get_arch_info (ibfd)->the_default)
3508 	return TRUE;
3509 
3510       elf_flags_init (obfd) = TRUE;
3511       elf_elfheader (obfd)->e_flags = in_flags;
3512 
3513       if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3514 	  && bfd_get_arch_info (obfd)->the_default)
3515 	return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3516 				  bfd_get_mach (ibfd));
3517 
3518       return TRUE;
3519     }
3520 
3521   /* Check flag compatibility.  */
3522   if (in_flags == out_flags)
3523     return TRUE;
3524 
3525   if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3526     {
3527       if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3528           || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3529           || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3530 	{
3531 	  (*_bfd_error_handler)
3532 	    (_("%B: Instruction set mismatch with previous modules"), ibfd);
3533 
3534 	  bfd_set_error (bfd_error_bad_value);
3535 	  return FALSE;
3536 	}
3537     }
3538 
3539   return TRUE;
3540 }
3541 
3542 /* Display the flags field.  */
3543 
3544 static bfd_boolean
m32r_elf_print_private_bfd_data(bfd * abfd,void * ptr)3545 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3546 {
3547   FILE * file = (FILE *) ptr;
3548 
3549   BFD_ASSERT (abfd != NULL && ptr != NULL);
3550 
3551   _bfd_elf_print_private_bfd_data (abfd, ptr);
3552 
3553   fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3554 
3555   switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3556     {
3557     default:
3558     case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3559     case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3560     case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3561     }
3562 
3563   fputc ('\n', file);
3564 
3565   return TRUE;
3566 }
3567 
3568 static asection *
m32r_elf_gc_mark_hook(asection * sec,struct bfd_link_info * info,Elf_Internal_Rela * rel,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)3569 m32r_elf_gc_mark_hook (asection *sec,
3570 		       struct bfd_link_info *info,
3571 		       Elf_Internal_Rela *rel,
3572 		       struct elf_link_hash_entry *h,
3573 		       Elf_Internal_Sym *sym)
3574 {
3575   if (h != NULL)
3576     switch (ELF32_R_TYPE (rel->r_info))
3577       {
3578       case R_M32R_GNU_VTINHERIT:
3579       case R_M32R_GNU_VTENTRY:
3580       case R_M32R_RELA_GNU_VTINHERIT:
3581       case R_M32R_RELA_GNU_VTENTRY:
3582 	return NULL;
3583       }
3584 
3585   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3586 }
3587 
3588 static bfd_boolean
m32r_elf_gc_sweep_hook(bfd * abfd ATTRIBUTE_UNUSED,struct bfd_link_info * info ATTRIBUTE_UNUSED,asection * sec ATTRIBUTE_UNUSED,const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED)3589 m32r_elf_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED,
3590 			struct bfd_link_info *info ATTRIBUTE_UNUSED,
3591 			asection *sec ATTRIBUTE_UNUSED,
3592 			const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED)
3593 {
3594   /* Update the got entry reference counts for the section being removed.  */
3595   Elf_Internal_Shdr *symtab_hdr;
3596   struct elf_link_hash_entry **sym_hashes;
3597   bfd_signed_vma *local_got_refcounts;
3598   const Elf_Internal_Rela *rel, *relend;
3599 
3600   if (bfd_link_relocatable (info))
3601     return TRUE;
3602 
3603   elf_section_data (sec)->local_dynrel = NULL;
3604 
3605   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3606   sym_hashes = elf_sym_hashes (abfd);
3607   local_got_refcounts = elf_local_got_refcounts (abfd);
3608 
3609   relend = relocs + sec->reloc_count;
3610   for (rel = relocs; rel < relend; rel++)
3611     {
3612       unsigned long r_symndx;
3613       struct elf_link_hash_entry *h = NULL;
3614 
3615       r_symndx = ELF32_R_SYM (rel->r_info);
3616       if (r_symndx >= symtab_hdr->sh_info)
3617 	{
3618 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3619 	  while (h->root.type == bfd_link_hash_indirect
3620 		 || h->root.type == bfd_link_hash_warning)
3621 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
3622 	}
3623 
3624       switch (ELF32_R_TYPE (rel->r_info))
3625 	{
3626 	case R_M32R_GOT16_HI_ULO:
3627 	case R_M32R_GOT16_HI_SLO:
3628 	case R_M32R_GOT16_LO:
3629 	case R_M32R_GOTOFF:
3630 	case R_M32R_GOTOFF_HI_ULO:
3631 	case R_M32R_GOTOFF_HI_SLO:
3632 	case R_M32R_GOTOFF_LO:
3633 	case R_M32R_GOT24:
3634 	case R_M32R_GOTPC_HI_ULO:
3635 	case R_M32R_GOTPC_HI_SLO:
3636 	case R_M32R_GOTPC_LO:
3637 	case R_M32R_GOTPC24:
3638 	  if (h != NULL)
3639 	    {
3640 	      if (h->got.refcount > 0)
3641 		h->got.refcount--;
3642 	    }
3643 	  else
3644 	    {
3645 	      if (local_got_refcounts && local_got_refcounts[r_symndx] > 0)
3646 		local_got_refcounts[r_symndx]--;
3647 	    }
3648 	  break;
3649 
3650 	case R_M32R_16_RELA:
3651 	case R_M32R_24_RELA:
3652 	case R_M32R_32_RELA:
3653 	case R_M32R_REL32:
3654 	case R_M32R_HI16_ULO_RELA:
3655 	case R_M32R_HI16_SLO_RELA:
3656 	case R_M32R_LO16_RELA:
3657 	case R_M32R_SDA16_RELA:
3658 	case R_M32R_10_PCREL_RELA:
3659 	case R_M32R_18_PCREL_RELA:
3660 	case R_M32R_26_PCREL_RELA:
3661 	  if (h != NULL)
3662 	    {
3663 	      struct elf_m32r_link_hash_entry *eh;
3664 	      struct elf_m32r_dyn_relocs **pp;
3665 	      struct elf_m32r_dyn_relocs *p;
3666 
3667 	      if (!bfd_link_pic (info) && h->plt.refcount > 0)
3668 		h->plt.refcount -= 1;
3669 
3670 	      eh = (struct elf_m32r_link_hash_entry *) h;
3671 
3672 	      for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
3673 		if (p->sec == sec)
3674 		  {
3675 		    if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3676 			|| ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3677 			|| ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3678 			|| ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3679 		      p->pc_count -= 1;
3680 		    p->count -= 1;
3681 		    if (p->count == 0)
3682 		      *pp = p->next;
3683 		    break;
3684 		  }
3685 	    }
3686 	  break;
3687 
3688 	case R_M32R_26_PLTREL:
3689 	  if (h != NULL)
3690 	    {
3691 	      if (h->plt.refcount > 0)
3692 		h->plt.refcount--;
3693 	    }
3694 	  break;
3695 
3696 	default:
3697 	  break;
3698 	}
3699     }
3700 
3701   return TRUE;
3702 }
3703 
3704 /* Look through the relocs for a section during the first phase.
3705    Since we don't do .gots or .plts, we just need to consider the
3706    virtual table relocs for gc.  */
3707 
3708 static bfd_boolean
m32r_elf_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)3709 m32r_elf_check_relocs (bfd *abfd,
3710 		       struct bfd_link_info *info,
3711 		       asection *sec,
3712 		       const Elf_Internal_Rela *relocs)
3713 {
3714   Elf_Internal_Shdr *symtab_hdr;
3715   struct elf_link_hash_entry **sym_hashes;
3716   const Elf_Internal_Rela *rel;
3717   const Elf_Internal_Rela *rel_end;
3718   struct elf_m32r_link_hash_table *htab;
3719   bfd *dynobj;
3720   asection *sreloc;
3721 
3722   if (bfd_link_relocatable (info))
3723     return TRUE;
3724 
3725   sreloc = NULL;
3726   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3727   sym_hashes = elf_sym_hashes (abfd);
3728 
3729   htab = m32r_elf_hash_table (info);
3730   if (htab == NULL)
3731     return FALSE;
3732 
3733   dynobj = htab->root.dynobj;
3734 
3735   rel_end = relocs + sec->reloc_count;
3736   for (rel = relocs; rel < rel_end; rel++)
3737     {
3738       int r_type;
3739       struct elf_link_hash_entry *h;
3740       unsigned long r_symndx;
3741 
3742       r_symndx = ELF32_R_SYM (rel->r_info);
3743       r_type = ELF32_R_TYPE (rel->r_info);
3744       if (r_symndx < symtab_hdr->sh_info)
3745         h = NULL;
3746       else
3747 	{
3748 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3749 	  while (h->root.type == bfd_link_hash_indirect
3750 		 || h->root.type == bfd_link_hash_warning)
3751 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
3752 
3753 	  /* PR15323, ref flags aren't set for references in the same
3754 	     object.  */
3755 	  h->root.non_ir_ref = 1;
3756 	}
3757 
3758       /* Some relocs require a global offset table.  */
3759       if (htab->sgot == NULL)
3760         {
3761           switch (r_type)
3762             {
3763             case R_M32R_GOT16_HI_ULO:
3764             case R_M32R_GOT16_HI_SLO:
3765             case R_M32R_GOTOFF:
3766             case R_M32R_GOTOFF_HI_ULO:
3767             case R_M32R_GOTOFF_HI_SLO:
3768             case R_M32R_GOTOFF_LO:
3769             case R_M32R_GOT16_LO:
3770             case R_M32R_GOTPC24:
3771             case R_M32R_GOTPC_HI_ULO:
3772             case R_M32R_GOTPC_HI_SLO:
3773             case R_M32R_GOTPC_LO:
3774             case R_M32R_GOT24:
3775               if (dynobj == NULL)
3776                 htab->root.dynobj = dynobj = abfd;
3777               if (! create_got_section (dynobj, info))
3778                 return FALSE;
3779               break;
3780 
3781             default:
3782               break;
3783           }
3784         }
3785 
3786       switch (r_type)
3787         {
3788 	case R_M32R_GOT16_HI_ULO:
3789 	case R_M32R_GOT16_HI_SLO:
3790 	case R_M32R_GOT16_LO:
3791         case R_M32R_GOT24:
3792 
3793           if (h != NULL)
3794             h->got.refcount += 1;
3795           else
3796             {
3797               bfd_signed_vma *local_got_refcounts;
3798 
3799               /* This is a global offset table entry for a local
3800                  symbol.  */
3801               local_got_refcounts = elf_local_got_refcounts (abfd);
3802               if (local_got_refcounts == NULL)
3803                 {
3804                   bfd_size_type size;
3805 
3806                   size = symtab_hdr->sh_info;
3807                   size *= sizeof (bfd_signed_vma);
3808                   local_got_refcounts = bfd_zalloc (abfd, size);
3809                   if (local_got_refcounts == NULL)
3810                     return FALSE;
3811                   elf_local_got_refcounts (abfd) = local_got_refcounts;
3812                 }
3813               local_got_refcounts[r_symndx] += 1;
3814             }
3815           break;
3816 
3817         case R_M32R_26_PLTREL:
3818           /* This symbol requires a procedure linkage table entry.  We
3819              actually build the entry in adjust_dynamic_symbol,
3820              because this might be a case of linking PIC code without
3821              linking in any dynamic objects, in which case we don't
3822              need to generate a procedure linkage table after all.  */
3823 
3824 	  /* If this is a local symbol, we resolve it directly without
3825 	     creating a procedure linkage table entry.  */
3826           if (h == NULL)
3827             continue;
3828 
3829           if (h->forced_local)
3830             break;
3831 
3832           h->needs_plt = 1;
3833 	  h->plt.refcount += 1;
3834           break;
3835 
3836         case R_M32R_16_RELA:
3837         case R_M32R_24_RELA:
3838         case R_M32R_32_RELA:
3839         case R_M32R_REL32:
3840         case R_M32R_HI16_ULO_RELA:
3841         case R_M32R_HI16_SLO_RELA:
3842         case R_M32R_LO16_RELA:
3843         case R_M32R_SDA16_RELA:
3844 	case R_M32R_10_PCREL_RELA:
3845         case R_M32R_18_PCREL_RELA:
3846         case R_M32R_26_PCREL_RELA:
3847 
3848           if (h != NULL && !bfd_link_pic (info))
3849             {
3850               h->non_got_ref = 1;
3851               h->plt.refcount += 1;
3852             }
3853 
3854           /* If we are creating a shared library, and this is a reloc
3855              against a global symbol, or a non PC relative reloc
3856              against a local symbol, then we need to copy the reloc
3857              into the shared library.  However, if we are linking with
3858              -Bsymbolic, we do not need to copy a reloc against a
3859              global symbol which is defined in an object we are
3860              including in the link (i.e., DEF_REGULAR is set).  At
3861              this point we have not seen all the input files, so it is
3862              possible that DEF_REGULAR is not set now but will be set
3863              later (it is never cleared).  We account for that
3864              possibility below by storing information in the
3865              dyn_relocs field of the hash table entry. A similar
3866              situation occurs when creating shared libraries and symbol
3867              visibility changes render the symbol local.
3868 
3869              If on the other hand, we are creating an executable, we
3870              may need to keep relocations for symbols satisfied by a
3871              dynamic library if we manage to avoid copy relocs for the
3872              symbol.  */
3873           if ((bfd_link_pic (info)
3874                && (sec->flags & SEC_ALLOC) != 0
3875 	       && ((   r_type != R_M32R_26_PCREL_RELA
3876                     && r_type != R_M32R_18_PCREL_RELA
3877                     && r_type != R_M32R_10_PCREL_RELA
3878                     && r_type != R_M32R_REL32)
3879 	           || (h != NULL
3880 		       && (! info->symbolic
3881 		           || h->root.type == bfd_link_hash_defweak
3882 		           || !h->def_regular))))
3883               || (!bfd_link_pic (info)
3884                   && (sec->flags & SEC_ALLOC) != 0
3885                   && h != NULL
3886                   && (h->root.type == bfd_link_hash_defweak
3887                       || !h->def_regular)))
3888             {
3889               struct elf_m32r_dyn_relocs *p;
3890               struct elf_m32r_dyn_relocs **head;
3891 
3892               if (dynobj == NULL)
3893                 htab->root.dynobj = dynobj = abfd;
3894 
3895               /* When creating a shared object, we must copy these
3896                  relocs into the output file.  We create a reloc
3897                  section in dynobj and make room for the reloc.  */
3898               if (sreloc == NULL)
3899                 {
3900 		  sreloc = _bfd_elf_make_dynamic_reloc_section
3901 		    (sec, dynobj, 2, abfd, /*rela?*/ TRUE);
3902 
3903 		  if (sreloc == NULL)
3904 		    return FALSE;
3905                 }
3906 
3907               /* If this is a global symbol, we count the number of
3908                  relocations we need for this symbol.  */
3909               if (h != NULL)
3910                 head = &((struct elf_m32r_link_hash_entry *) h)->dyn_relocs;
3911               else
3912                 {
3913                   /* Track dynamic relocs needed for local syms too.  */
3914                   asection *s;
3915                   void *vpp;
3916 		  Elf_Internal_Sym *isym;
3917 
3918 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3919 						abfd, r_symndx);
3920 		  if (isym == NULL)
3921 		    return FALSE;
3922 
3923 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3924 		  if (s == NULL)
3925 		    s = sec;
3926 
3927 		  vpp = &elf_section_data (s)->local_dynrel;
3928                   head = (struct elf_m32r_dyn_relocs **) vpp;
3929                 }
3930 
3931               p = *head;
3932               if (p == NULL || p->sec != sec)
3933                 {
3934                   bfd_size_type amt = sizeof (*p);
3935 
3936                   p = bfd_alloc (dynobj, amt);
3937                   if (p == NULL)
3938                     return FALSE;
3939                   p->next = *head;
3940                   *head = p;
3941                   p->sec = sec;
3942                   p->count = 0;
3943                   p->pc_count = 0;
3944                 }
3945 
3946               p->count += 1;
3947               if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3948                   || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3949 		  || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3950 		  || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3951                 p->pc_count += 1;
3952             }
3953           break;
3954 
3955         /* This relocation describes the C++ object vtable hierarchy.
3956            Reconstruct it for later use during GC.  */
3957         case R_M32R_RELA_GNU_VTINHERIT:
3958         case R_M32R_GNU_VTINHERIT:
3959           if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3960             return FALSE;
3961           break;
3962 
3963         /* This relocation describes which C++ vtable entries are actually
3964            used.  Record for later use during GC.  */
3965         case R_M32R_GNU_VTENTRY:
3966           BFD_ASSERT (h != NULL);
3967           if (h != NULL
3968               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3969             return FALSE;
3970           break;
3971         case R_M32R_RELA_GNU_VTENTRY:
3972           BFD_ASSERT (h != NULL);
3973           if (h != NULL
3974               && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3975             return FALSE;
3976           break;
3977         }
3978     }
3979 
3980   return TRUE;
3981 }
3982 
3983 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3984 {
3985   { STRING_COMMA_LEN (".sbss"),  -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
3986   { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3987   { NULL,                     0,  0, 0,            0 }
3988 };
3989 
3990 static enum elf_reloc_type_class
m32r_elf_reloc_type_class(const struct bfd_link_info * info ATTRIBUTE_UNUSED,const asection * rel_sec ATTRIBUTE_UNUSED,const Elf_Internal_Rela * rela)3991 m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3992 			   const asection *rel_sec ATTRIBUTE_UNUSED,
3993 			   const Elf_Internal_Rela *rela)
3994 {
3995   switch ((int) ELF32_R_TYPE (rela->r_info))
3996     {
3997     case R_M32R_RELATIVE:  return reloc_class_relative;
3998     case R_M32R_JMP_SLOT:  return reloc_class_plt;
3999     case R_M32R_COPY:      return reloc_class_copy;
4000     default:      	   return reloc_class_normal;
4001     }
4002 }
4003 
4004 #define ELF_ARCH		bfd_arch_m32r
4005 #define ELF_TARGET_ID		M32R_ELF_DATA
4006 #define ELF_MACHINE_CODE	EM_M32R
4007 #define ELF_MACHINE_ALT1	EM_CYGNUS_M32R
4008 #define ELF_MAXPAGESIZE		0x1 /* Explicitly requested by Mitsubishi.  */
4009 
4010 #define TARGET_BIG_SYM          m32r_elf32_vec
4011 #define TARGET_BIG_NAME		"elf32-m32r"
4012 #define TARGET_LITTLE_SYM       m32r_elf32_le_vec
4013 #define TARGET_LITTLE_NAME      "elf32-m32rle"
4014 
4015 #define elf_info_to_howto			m32r_info_to_howto
4016 #define elf_info_to_howto_rel			m32r_info_to_howto_rel
4017 #define elf_backend_section_from_bfd_section	_bfd_m32r_elf_section_from_bfd_section
4018 #define elf_backend_symbol_processing		_bfd_m32r_elf_symbol_processing
4019 #define elf_backend_add_symbol_hook		m32r_elf_add_symbol_hook
4020 #define elf_backend_relocate_section		m32r_elf_relocate_section
4021 #define elf_backend_gc_mark_hook                m32r_elf_gc_mark_hook
4022 #define elf_backend_gc_sweep_hook               m32r_elf_gc_sweep_hook
4023 #define elf_backend_check_relocs                m32r_elf_check_relocs
4024 
4025 #define elf_backend_create_dynamic_sections     m32r_elf_create_dynamic_sections
4026 #define bfd_elf32_bfd_link_hash_table_create    m32r_elf_link_hash_table_create
4027 #define elf_backend_size_dynamic_sections       m32r_elf_size_dynamic_sections
4028 #define elf_backend_omit_section_dynsym \
4029   ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
4030 #define elf_backend_finish_dynamic_sections     m32r_elf_finish_dynamic_sections
4031 #define elf_backend_adjust_dynamic_symbol       m32r_elf_adjust_dynamic_symbol
4032 #define elf_backend_finish_dynamic_symbol       m32r_elf_finish_dynamic_symbol
4033 #define elf_backend_reloc_type_class            m32r_elf_reloc_type_class
4034 #define elf_backend_copy_indirect_symbol        m32r_elf_copy_indirect_symbol
4035 
4036 #define elf_backend_can_gc_sections             1
4037 /*#if !USE_REL
4038 #define elf_backend_rela_normal			1
4039 #endif*/
4040 #define elf_backend_can_refcount 1
4041 #define elf_backend_want_got_plt 1
4042 #define elf_backend_plt_readonly 1
4043 #define elf_backend_want_plt_sym 0
4044 #define elf_backend_got_header_size 12
4045 
4046 #define elf_backend_may_use_rel_p       1
4047 #ifdef USE_M32R_OLD_RELOC
4048 #define elf_backend_default_use_rela_p  0
4049 #define elf_backend_may_use_rela_p      0
4050 #else
4051 #define elf_backend_default_use_rela_p  1
4052 #define elf_backend_may_use_rela_p      1
4053 #endif
4054 
4055 #define elf_backend_object_p			m32r_elf_object_p
4056 #define elf_backend_final_write_processing 	m32r_elf_final_write_processing
4057 #define bfd_elf32_bfd_merge_private_bfd_data 	m32r_elf_merge_private_bfd_data
4058 #define bfd_elf32_bfd_set_private_flags		m32r_elf_set_private_flags
4059 #define bfd_elf32_bfd_print_private_bfd_data	m32r_elf_print_private_bfd_data
4060 #define elf_backend_special_sections		m32r_elf_special_sections
4061 
4062 #include "elf32-target.h"
4063 
4064 #undef  ELF_MAXPAGESIZE
4065 #define ELF_MAXPAGESIZE         0x1000
4066 
4067 #undef  TARGET_BIG_SYM
4068 #define TARGET_BIG_SYM          m32r_elf32_linux_vec
4069 #undef  TARGET_BIG_NAME
4070 #define TARGET_BIG_NAME         "elf32-m32r-linux"
4071 #undef  TARGET_LITTLE_SYM
4072 #define TARGET_LITTLE_SYM       m32r_elf32_linux_le_vec
4073 #undef  TARGET_LITTLE_NAME
4074 #define TARGET_LITTLE_NAME      "elf32-m32rle-linux"
4075 #undef  elf32_bed
4076 #define elf32_bed               elf32_m32r_lin_bed
4077 
4078 #include "elf32-target.h"
4079 
4080