1 /* M32R-specific support for 32-bit ELF.
2    Copyright (C) 1996-2021 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 bool
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       /* xgettext:c-format */
1286       _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
1287 			  abfd, r_type);
1288       bfd_set_error (bfd_error_bad_value);
1289       return false;
1290     }
1291   cache_ptr->howto = &m32r_elf_howto_table[r_type];
1292   return true;
1293 }
1294 
1295 static bool
m32r_info_to_howto(bfd * abfd ATTRIBUTE_UNUSED,arelent * cache_ptr,Elf_Internal_Rela * dst)1296 m32r_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
1297 		    arelent *cache_ptr,
1298 		    Elf_Internal_Rela *dst)
1299 {
1300   unsigned int r_type = ELF32_R_TYPE (dst->r_info);
1301 
1302   if (r_type == (unsigned int) R_M32R_NONE
1303       || ((r_type > (unsigned int) R_M32R_GNU_VTENTRY)
1304 	  && (r_type < (unsigned int) R_M32R_max)))
1305     {
1306       cache_ptr->howto = &m32r_elf_howto_table[r_type];
1307       return true;
1308     }
1309 
1310   /* xgettext:c-format */
1311   _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, r_type);
1312   bfd_set_error (bfd_error_bad_value);
1313   return false;
1314 }
1315 
1316 
1317 /* Given a BFD section, try to locate the corresponding ELF section
1318    index.  */
1319 
1320 static bool
_bfd_m32r_elf_section_from_bfd_section(bfd * abfd ATTRIBUTE_UNUSED,asection * sec,int * retval)1321 _bfd_m32r_elf_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
1322 					asection *sec,
1323 					int *retval)
1324 {
1325   if (strcmp (bfd_section_name (sec), ".scommon") == 0)
1326     {
1327       *retval = SHN_M32R_SCOMMON;
1328       return true;
1329     }
1330   return false;
1331 }
1332 
1333 /* M32R ELF uses two common sections.  One is the usual one, and the other
1334    is for small objects.  All the small objects are kept together, and then
1335    referenced via one register, which yields faster assembler code.  It is
1336    up to the compiler to emit an instruction to load the register with
1337    _SDA_BASE.  This is what we use for the small common section.  This
1338    approach is copied from elf32-mips.c.  */
1339 static asection m32r_elf_scom_section;
1340 static const asymbol m32r_elf_scom_symbol =
1341   GLOBAL_SYM_INIT (".scommon", &m32r_elf_scom_section);
1342 static asection m32r_elf_scom_section =
1343   BFD_FAKE_SECTION (m32r_elf_scom_section, &m32r_elf_scom_symbol,
1344 		    ".scommon", 0, SEC_IS_COMMON | SEC_SMALL_DATA);
1345 
1346 /* Handle the special M32R section numbers that a symbol may use.  */
1347 
1348 static void
_bfd_m32r_elf_symbol_processing(bfd * abfd ATTRIBUTE_UNUSED,asymbol * asym)1349 _bfd_m32r_elf_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
1350 {
1351   elf_symbol_type *elfsym = (elf_symbol_type *) asym;
1352 
1353   switch (elfsym->internal_elf_sym.st_shndx)
1354     {
1355     case SHN_M32R_SCOMMON:
1356       asym->section = &m32r_elf_scom_section;
1357       asym->value = elfsym->internal_elf_sym.st_size;
1358       break;
1359     }
1360 }
1361 
1362 /* Hook called by the linker routine which adds symbols from an object
1363    file.  We must handle the special M32R section numbers here.
1364    We also keep watching for whether we need to create the sdata special
1365    linker sections.  */
1366 
1367 static bool
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)1368 m32r_elf_add_symbol_hook (bfd *abfd,
1369 			  struct bfd_link_info *info,
1370 			  Elf_Internal_Sym *sym,
1371 			  const char **namep,
1372 			  flagword *flagsp ATTRIBUTE_UNUSED,
1373 			  asection **secp,
1374 			  bfd_vma *valp)
1375 {
1376   if (! bfd_link_relocatable (info)
1377       && (*namep)[0] == '_' && (*namep)[1] == 'S'
1378       && strcmp (*namep, "_SDA_BASE_") == 0
1379       && is_elf_hash_table (info->hash))
1380     {
1381       /* This is simpler than using _bfd_elf_create_linker_section
1382 	 (our needs are simpler than ppc's needs).  Also
1383 	 _bfd_elf_create_linker_section currently has a bug where if a .sdata
1384 	 section already exists a new one is created that follows it which
1385 	 screws of _SDA_BASE_ address calcs because output_offset != 0.  */
1386       struct elf_link_hash_entry *h;
1387       struct bfd_link_hash_entry *bh;
1388       asection *s = bfd_get_section_by_name (abfd, ".sdata");
1389 
1390       /* The following code was cobbled from elf32-ppc.c and elflink.c.  */
1391       if (s == NULL)
1392 	{
1393 	  flagword flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS
1394 			    | SEC_IN_MEMORY | SEC_LINKER_CREATED);
1395 
1396 	  s = bfd_make_section_anyway_with_flags (abfd, ".sdata",
1397 						  flags);
1398 	  if (s == NULL)
1399 	    return false;
1400 	  if (!bfd_set_section_alignment (s, 2))
1401 	    return false;
1402 	}
1403 
1404       bh = bfd_link_hash_lookup (info->hash, "_SDA_BASE_",
1405 				 false, false, false);
1406 
1407       if ((bh == NULL || bh->type == bfd_link_hash_undefined)
1408 	  && !(_bfd_generic_link_add_one_symbol (info,
1409 						 abfd,
1410 						 "_SDA_BASE_",
1411 						 BSF_GLOBAL,
1412 						 s,
1413 						 (bfd_vma) 32768,
1414 						 NULL,
1415 						 false,
1416 						 get_elf_backend_data (abfd)->collect,
1417 						 &bh)))
1418 	return false;
1419       h = (struct elf_link_hash_entry *) bh;
1420       h->type = STT_OBJECT;
1421     }
1422 
1423   switch (sym->st_shndx)
1424     {
1425     case SHN_M32R_SCOMMON:
1426       *secp = bfd_make_section_old_way (abfd, ".scommon");
1427       (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
1428       *valp = sym->st_size;
1429       break;
1430     }
1431 
1432   return true;
1433 }
1434 
1435 /* We have to figure out the SDA_BASE value, so that we can adjust the
1436    symbol value correctly.  We look up the symbol _SDA_BASE_ in the output
1437    BFD.  If we can't find it, we're stuck.  We cache it in the ELF
1438    target data.  We don't need to adjust the symbol value for an
1439    external symbol if we are producing relocatable output.  */
1440 
1441 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)1442 m32r_elf_final_sda_base (bfd *output_bfd,
1443 			 struct bfd_link_info *info,
1444 			 const char **error_message,
1445 			 bfd_vma *psb)
1446 {
1447   if (elf_gp (output_bfd) == 0)
1448     {
1449       struct bfd_link_hash_entry *h;
1450 
1451       h = bfd_link_hash_lookup (info->hash, "_SDA_BASE_", false, false, true);
1452       if (h != NULL && h->type == bfd_link_hash_defined)
1453 	elf_gp (output_bfd) = (h->u.def.value
1454 			       + h->u.def.section->output_section->vma
1455 			       + h->u.def.section->output_offset);
1456       else
1457 	{
1458 	  /* Only get the error once.  */
1459 	  *psb = elf_gp (output_bfd) = 4;
1460 	  *error_message =
1461 	    (const char *) _("SDA relocation when _SDA_BASE_ not defined");
1462 	  return bfd_reloc_dangerous;
1463 	}
1464     }
1465   *psb = elf_gp (output_bfd);
1466   return bfd_reloc_ok;
1467 }
1468 
1469 /* Return size of a PLT entry.  */
1470 #define elf_m32r_sizeof_plt(info) PLT_ENTRY_SIZE
1471 
1472 /* The m32r linker needs to keep track of the number of relocs that it
1473    decides to copy in check_relocs for each symbol.  This is so that
1474    it can discard PC relative relocs if it doesn't need them when
1475    linking with -Bsymbolic.  We store the information in a field
1476    extending the regular ELF linker hash table.  */
1477 
1478 /* This structure keeps track of the number of PC relative relocs we
1479    have copied for a given symbol.  */
1480 
1481 struct elf_m32r_pcrel_relocs_copied
1482 {
1483   /* Next section.  */
1484   struct elf_m32r_pcrel_relocs_copied *next;
1485   /* A section in dynobj.  */
1486   asection *section;
1487   /* Number of relocs copied in this section.  */
1488   bfd_size_type count;
1489 };
1490 
1491 /* Traverse an m32r ELF linker hash table.  */
1492 
1493 #define m32r_elf_link_hash_traverse(table, func, info)			\
1494   (elf_link_hash_traverse						\
1495    (&(table)->root,							\
1496     (bool (*) (struct elf_link_hash_entry *, void *)) (func),		\
1497     (info)))
1498 
1499 /* Get the m32r ELF linker hash table from a link_info structure.  */
1500 
1501 #define m32r_elf_hash_table(p) \
1502   ((is_elf_hash_table ((p)->hash)					\
1503     && elf_hash_table_id (elf_hash_table (p)) == M32R_ELF_DATA)		\
1504    ? (struct elf_link_hash_table *) (p)->hash : NULL)
1505 
1506 /* Create an m32r ELF linker hash table.  */
1507 
1508 static struct bfd_link_hash_table *
m32r_elf_link_hash_table_create(bfd * abfd)1509 m32r_elf_link_hash_table_create (bfd *abfd)
1510 {
1511   struct elf_link_hash_table *ret;
1512   size_t amt = sizeof (struct elf_link_hash_table);
1513 
1514   ret = bfd_zmalloc (amt);
1515   if (ret == NULL)
1516     return NULL;
1517 
1518   if (!_bfd_elf_link_hash_table_init (ret, abfd,
1519 				      _bfd_elf_link_hash_newfunc,
1520 				      sizeof (struct elf_link_hash_entry),
1521 				      M32R_ELF_DATA))
1522     {
1523       free (ret);
1524       return NULL;
1525     }
1526 
1527   return &ret->root;
1528 }
1529 
1530 /* Create dynamic sections when linking against a dynamic object.  */
1531 
1532 static bool
m32r_elf_create_dynamic_sections(bfd * abfd,struct bfd_link_info * info)1533 m32r_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
1534 {
1535   struct elf_link_hash_table *htab;
1536   flagword flags, pltflags;
1537   asection *s;
1538   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
1539   int ptralign = 2; /* 32bit */
1540 
1541   htab = m32r_elf_hash_table (info);
1542   if (htab == NULL)
1543     return false;
1544 
1545   /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
1546      .rel[a].bss sections.  */
1547   flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY
1548 	   | SEC_LINKER_CREATED);
1549 
1550   pltflags = flags;
1551   pltflags |= SEC_CODE;
1552   if (bed->plt_not_loaded)
1553     pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS);
1554   if (bed->plt_readonly)
1555     pltflags |= SEC_READONLY;
1556 
1557   s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags);
1558   htab->splt = s;
1559   if (s == NULL
1560       || !bfd_set_section_alignment (s, bed->plt_alignment))
1561     return false;
1562 
1563   if (bed->want_plt_sym)
1564     {
1565       /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
1566 	 .plt section.  */
1567       struct bfd_link_hash_entry *bh = NULL;
1568       struct elf_link_hash_entry *h;
1569 
1570       if (! (_bfd_generic_link_add_one_symbol
1571 	     (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s,
1572 	      (bfd_vma) 0, NULL, false,
1573 	      get_elf_backend_data (abfd)->collect, &bh)))
1574 	return false;
1575       h = (struct elf_link_hash_entry *) bh;
1576       h->def_regular = 1;
1577       h->type = STT_OBJECT;
1578       htab->hplt = h;
1579 
1580       if (bfd_link_pic (info)
1581 	  && ! bfd_elf_link_record_dynamic_symbol (info, h))
1582 	return false;
1583     }
1584 
1585   s = bfd_make_section_anyway_with_flags (abfd,
1586 					  bed->default_use_rela_p
1587 					  ? ".rela.plt" : ".rel.plt",
1588 					  flags | SEC_READONLY);
1589   htab->srelplt = s;
1590   if (s == NULL
1591       || !bfd_set_section_alignment (s, ptralign))
1592     return false;
1593 
1594   if (htab->sgot == NULL
1595       && !_bfd_elf_create_got_section (abfd, info))
1596     return false;
1597 
1598   if (bed->want_dynbss)
1599     {
1600       /* The .dynbss section is a place to put symbols which are defined
1601 	 by dynamic objects, are referenced by regular objects, and are
1602 	 not functions.  We must allocate space for them in the process
1603 	 image and use a R_*_COPY reloc to tell the dynamic linker to
1604 	 initialize them at run time.  The linker script puts the .dynbss
1605 	 section into the .bss section of the final image.  */
1606       s = bfd_make_section_anyway_with_flags (abfd, ".dynbss",
1607 					      SEC_ALLOC | SEC_LINKER_CREATED);
1608       htab->sdynbss = s;
1609       if (s == NULL)
1610 	return false;
1611       /* The .rel[a].bss section holds copy relocs.  This section is not
1612 	 normally needed.  We need to create it here, though, so that the
1613 	 linker will map it to an output section.  We can't just create it
1614 	 only if we need it, because we will not know whether we need it
1615 	 until we have seen all the input files, and the first time the
1616 	 main linker code calls BFD after examining all the input files
1617 	 (size_dynamic_sections) the input sections have already been
1618 	 mapped to the output sections.  If the section turns out not to
1619 	 be needed, we can discard it later.  We will never need this
1620 	 section when generating a shared object, since they do not use
1621 	 copy relocs.  */
1622       if (! bfd_link_pic (info))
1623 	{
1624 	  s = bfd_make_section_anyway_with_flags (abfd,
1625 						  (bed->default_use_rela_p
1626 						   ? ".rela.bss" : ".rel.bss"),
1627 						  flags | SEC_READONLY);
1628 	  htab->srelbss = s;
1629 	  if (s == NULL
1630 	      || !bfd_set_section_alignment (s, ptralign))
1631 	    return false;
1632 	}
1633     }
1634 
1635   return true;
1636 }
1637 
1638 
1639 /* Adjust a symbol defined by a dynamic object and referenced by a
1640    regular object.  The current definition is in some section of the
1641    dynamic object, but we're not including those sections.  We have to
1642    change the definition to something the rest of the link can
1643    understand.  */
1644 
1645 static bool
m32r_elf_adjust_dynamic_symbol(struct bfd_link_info * info,struct elf_link_hash_entry * h)1646 m32r_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
1647 				struct elf_link_hash_entry *h)
1648 {
1649   struct elf_link_hash_table *htab;
1650   bfd *dynobj;
1651   asection *s;
1652 
1653 #ifdef DEBUG_PIC
1654   printf ("m32r_elf_adjust_dynamic_symbol()\n");
1655 #endif
1656 
1657   dynobj = elf_hash_table (info)->dynobj;
1658 
1659   /* Make sure we know what is going on here.  */
1660   BFD_ASSERT (dynobj != NULL
1661 	      && (h->needs_plt
1662 		  || h->is_weakalias
1663 		  || (h->def_dynamic
1664 		      && h->ref_regular
1665 		      && !h->def_regular)));
1666 
1667   /* If this is a function, put it in the procedure linkage table.  We
1668      will fill in the contents of the procedure linkage table later,
1669      when we know the address of the .got section.  */
1670   if (h->type == STT_FUNC
1671       || h->needs_plt)
1672     {
1673       if (! bfd_link_pic (info)
1674 	  && !h->def_dynamic
1675 	  && !h->ref_dynamic
1676 	  && h->root.type != bfd_link_hash_undefweak
1677 	  && h->root.type != bfd_link_hash_undefined)
1678 	{
1679 	  /* This case can occur if we saw a PLT reloc in an input
1680 	     file, but the symbol was never referred to by a dynamic
1681 	     object.  In such a case, we don't actually need to build
1682 	     a procedure linkage table, and we can just do a PCREL
1683 	     reloc instead.  */
1684 	  h->plt.offset = (bfd_vma) -1;
1685 	  h->needs_plt = 0;
1686 	}
1687 
1688       return true;
1689     }
1690   else
1691     h->plt.offset = (bfd_vma) -1;
1692 
1693   /* If this is a weak symbol, and there is a real definition, the
1694      processor independent code will have arranged for us to see the
1695      real definition first, and we can just use the same value.  */
1696   if (h->is_weakalias)
1697     {
1698       struct elf_link_hash_entry *def = weakdef (h);
1699       BFD_ASSERT (def->root.type == bfd_link_hash_defined);
1700       h->root.u.def.section = def->root.u.def.section;
1701       h->root.u.def.value = def->root.u.def.value;
1702       return true;
1703     }
1704 
1705   /* This is a reference to a symbol defined by a dynamic object which
1706      is not a function.  */
1707 
1708   /* If we are creating a shared library, we must presume that the
1709      only references to the symbol are via the global offset table.
1710      For such cases we need not do anything here; the relocations will
1711      be handled correctly by relocate_section.  */
1712   if (bfd_link_pic (info))
1713     return true;
1714 
1715   /* If there are no references to this symbol that do not use the
1716      GOT, we don't need to generate a copy reloc.  */
1717   if (!h->non_got_ref)
1718     return true;
1719 
1720   /* If -z nocopyreloc was given, we won't generate them either.  */
1721   if (0 && info->nocopyreloc)
1722     {
1723       h->non_got_ref = 0;
1724       return true;
1725     }
1726 
1727   /* If we don't find any dynamic relocs in read-only sections, then
1728      we'll be keeping the dynamic relocs and avoiding the copy reloc.  */
1729   if (0 && !_bfd_elf_readonly_dynrelocs (h))
1730     {
1731       h->non_got_ref = 0;
1732       return true;
1733     }
1734 
1735   /* We must allocate the symbol in our .dynbss section, which will
1736      become part of the .bss section of the executable.  There will be
1737      an entry for this symbol in the .dynsym section.  The dynamic
1738      object will contain position independent code, so all references
1739      from the dynamic object to this symbol will go through the global
1740      offset table.  The dynamic linker will use the .dynsym entry to
1741      determine the address it must put in the global offset table, so
1742      both the dynamic object and the regular object will refer to the
1743      same memory location for the variable.  */
1744 
1745   htab = m32r_elf_hash_table (info);
1746   if (htab == NULL)
1747     return false;
1748 
1749   s = htab->sdynbss;
1750   BFD_ASSERT (s != NULL);
1751 
1752   /* We must generate a R_M32R_COPY reloc to tell the dynamic linker
1753      to copy the initial value out of the dynamic object and into the
1754      runtime process image.  We need to remember the offset into the
1755      .rela.bss section we are going to use.  */
1756   if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
1757     {
1758       asection *srel;
1759 
1760       srel = htab->srelbss;
1761       BFD_ASSERT (srel != NULL);
1762       srel->size += sizeof (Elf32_External_Rela);
1763       h->needs_copy = 1;
1764     }
1765 
1766   return _bfd_elf_adjust_dynamic_copy (info, h, s);
1767 }
1768 
1769 /* Allocate space in .plt, .got and associated reloc sections for
1770    dynamic relocs.  */
1771 
1772 static bool
allocate_dynrelocs(struct elf_link_hash_entry * h,void * inf)1773 allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf)
1774 {
1775   struct bfd_link_info *info;
1776   struct elf_link_hash_table *htab;
1777   struct elf_dyn_relocs *p;
1778 
1779   if (h->root.type == bfd_link_hash_indirect)
1780     return true;
1781 
1782   info = (struct bfd_link_info *) inf;
1783   htab = m32r_elf_hash_table (info);
1784   if (htab == NULL)
1785     return false;
1786 
1787   if (htab->dynamic_sections_created
1788       && h->plt.refcount > 0)
1789     {
1790       /* Make sure this symbol is output as a dynamic symbol.
1791 	 Undefined weak syms won't yet be marked as dynamic.  */
1792       if (h->dynindx == -1
1793 	  && !h->forced_local)
1794 	{
1795 	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
1796 	    return false;
1797 	}
1798 
1799       if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h))
1800 	{
1801 	  asection *s = htab->splt;
1802 
1803 	  /* If this is the first .plt entry, make room for the special
1804 	     first entry.  */
1805 	  if (s->size == 0)
1806 	    s->size += PLT_ENTRY_SIZE;
1807 
1808 	  h->plt.offset = s->size;
1809 
1810 	  /* If this symbol is not defined in a regular file, and we are
1811 	     not generating a shared library, then set the symbol to this
1812 	     location in the .plt.  This is required to make function
1813 	     pointers compare as equal between the normal executable and
1814 	     the shared library.  */
1815 	  if (! bfd_link_pic (info)
1816 	      && !h->def_regular)
1817 	    {
1818 	      h->root.u.def.section = s;
1819 	      h->root.u.def.value = h->plt.offset;
1820 	    }
1821 
1822 	  /* Make room for this entry.  */
1823 	  s->size += PLT_ENTRY_SIZE;
1824 
1825 	  /* We also need to make an entry in the .got.plt section, which
1826 	     will be placed in the .got section by the linker script.  */
1827 	  htab->sgotplt->size += 4;
1828 
1829 	  /* We also need to make an entry in the .rel.plt section.  */
1830 	  htab->srelplt->size += sizeof (Elf32_External_Rela);
1831 	}
1832       else
1833 	{
1834 	  h->plt.offset = (bfd_vma) -1;
1835 	  h->needs_plt = 0;
1836 	}
1837     }
1838   else
1839     {
1840       h->plt.offset = (bfd_vma) -1;
1841       h->needs_plt = 0;
1842     }
1843 
1844   if (h->got.refcount > 0)
1845     {
1846       asection *s;
1847       bool dyn;
1848 
1849       /* Make sure this symbol is output as a dynamic symbol.
1850 	 Undefined weak syms won't yet be marked as dynamic.  */
1851       if (h->dynindx == -1
1852 	  && !h->forced_local)
1853 	{
1854 	  if (! bfd_elf_link_record_dynamic_symbol (info, h))
1855 	    return false;
1856 	}
1857 
1858       s = htab->sgot;
1859 
1860       h->got.offset = s->size;
1861       s->size += 4;
1862       dyn = htab->dynamic_sections_created;
1863       if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h))
1864 	htab->srelgot->size += sizeof (Elf32_External_Rela);
1865     }
1866   else
1867     h->got.offset = (bfd_vma) -1;
1868 
1869   if (h->dyn_relocs == NULL)
1870     return true;
1871 
1872   /* In the shared -Bsymbolic case, discard space allocated for
1873      dynamic pc-relative relocs against symbols which turn out to be
1874      defined in regular objects.  For the normal shared case, discard
1875      space for pc-relative relocs that have become local due to symbol
1876      visibility changes.  */
1877 
1878   if (bfd_link_pic (info))
1879     {
1880       if (h->def_regular
1881 	  && (h->forced_local
1882 	      || info->symbolic))
1883 	{
1884 	  struct elf_dyn_relocs **pp;
1885 
1886 	  for (pp = &h->dyn_relocs; (p = *pp) != NULL;)
1887 	    {
1888 	      p->count -= p->pc_count;
1889 	      p->pc_count = 0;
1890 	      if (p->count == 0)
1891 		*pp = p->next;
1892 	      else
1893 		pp = &p->next;
1894 	    }
1895 	}
1896 
1897       /* Also discard relocs on undefined weak syms with non-default
1898 	 visibility.  */
1899       if (h->dyn_relocs != NULL
1900 	  && h->root.type == bfd_link_hash_undefweak)
1901 	{
1902 	  if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
1903 	    h->dyn_relocs = NULL;
1904 
1905 	  /* Make sure undefined weak symbols are output as a dynamic
1906 	     symbol in PIEs.  */
1907 	  else if (h->dynindx == -1
1908 		   && !h->forced_local)
1909 	    {
1910 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
1911 		return false;
1912 	    }
1913 	}
1914     }
1915   else
1916     {
1917       /* For the non-shared case, discard space for relocs against
1918 	 symbols which turn out to need copy relocs or are not
1919 	 dynamic.  */
1920 
1921       if (!h->non_got_ref
1922 	  && ((h->def_dynamic
1923 	       && !h->def_regular)
1924 	      || (htab->dynamic_sections_created
1925 		  && (h->root.type == bfd_link_hash_undefweak
1926 		      || h->root.type == bfd_link_hash_undefined))))
1927 	{
1928 	  /* Make sure this symbol is output as a dynamic symbol.
1929 	     Undefined weak syms won't yet be marked as dynamic.  */
1930 	  if (h->dynindx == -1
1931 	      && !h->forced_local)
1932 	    {
1933 	      if (! bfd_elf_link_record_dynamic_symbol (info, h))
1934 		return false;
1935 	    }
1936 
1937 	  /* If that succeeded, we know we'll be keeping all the
1938 	     relocs.  */
1939 	  if (h->dynindx != -1)
1940 	    goto keep;
1941 	}
1942 
1943       h->dyn_relocs = NULL;
1944 
1945     keep: ;
1946     }
1947 
1948   /* Finally, allocate space.  */
1949   for (p = h->dyn_relocs; p != NULL; p = p->next)
1950     {
1951       asection *sreloc = elf_section_data (p->sec)->sreloc;
1952       sreloc->size += p->count * sizeof (Elf32_External_Rela);
1953     }
1954 
1955   return true;
1956 }
1957 
1958 /* Set the sizes of the dynamic sections.  */
1959 
1960 static bool
m32r_elf_size_dynamic_sections(bfd * output_bfd ATTRIBUTE_UNUSED,struct bfd_link_info * info)1961 m32r_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
1962 				struct bfd_link_info *info)
1963 {
1964   struct elf_link_hash_table *htab;
1965   bfd *dynobj;
1966   asection *s;
1967   bool relocs;
1968   bfd *ibfd;
1969 
1970 #ifdef DEBUG_PIC
1971   printf ("m32r_elf_size_dynamic_sections()\n");
1972 #endif
1973 
1974   htab = m32r_elf_hash_table (info);
1975   if (htab == NULL)
1976     return false;
1977 
1978   dynobj = htab->dynobj;
1979   BFD_ASSERT (dynobj != NULL);
1980 
1981   if (htab->dynamic_sections_created)
1982     {
1983       /* Set the contents of the .interp section to the interpreter.  */
1984       if (bfd_link_executable (info) && !info->nointerp)
1985 	{
1986 	  s = bfd_get_linker_section (dynobj, ".interp");
1987 	  BFD_ASSERT (s != NULL);
1988 	  s->size = sizeof ELF_DYNAMIC_INTERPRETER;
1989 	  s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
1990 	}
1991     }
1992 
1993   /* Set up .got offsets for local syms, and space for local dynamic
1994      relocs.  */
1995   for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
1996     {
1997       bfd_signed_vma *local_got;
1998       bfd_signed_vma *end_local_got;
1999       bfd_size_type locsymcount;
2000       Elf_Internal_Shdr *symtab_hdr;
2001       asection *srel;
2002 
2003       if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2004 	continue;
2005 
2006       for (s = ibfd->sections; s != NULL; s = s->next)
2007 	{
2008 	  struct elf_dyn_relocs *p;
2009 
2010 	  for (p = ((struct elf_dyn_relocs *)
2011 		    elf_section_data (s)->local_dynrel);
2012 	       p != NULL;
2013 	       p = p->next)
2014 	    {
2015 	      if (! bfd_is_abs_section (p->sec)
2016 		  && bfd_is_abs_section (p->sec->output_section))
2017 		{
2018 		  /* Input section has been discarded, either because
2019 		     it is a copy of a linkonce section or due to
2020 		     linker script /DISCARD/, so we'll be discarding
2021 		     the relocs too.  */
2022 		}
2023 	      else if (p->count != 0)
2024 		{
2025 		  srel = elf_section_data (p->sec)->sreloc;
2026 		  srel->size += p->count * sizeof (Elf32_External_Rela);
2027 		  if ((p->sec->output_section->flags & SEC_READONLY) != 0)
2028 		    info->flags |= DF_TEXTREL;
2029 		}
2030 	    }
2031 	}
2032 
2033       local_got = elf_local_got_refcounts (ibfd);
2034       if (!local_got)
2035 	continue;
2036 
2037       symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2038       locsymcount = symtab_hdr->sh_info;
2039       end_local_got = local_got + locsymcount;
2040       s = htab->sgot;
2041       srel = htab->srelgot;
2042       for (; local_got < end_local_got; ++local_got)
2043 	{
2044 	  if (*local_got > 0)
2045 	    {
2046 	      *local_got = s->size;
2047 	      s->size += 4;
2048 	      if (bfd_link_pic (info))
2049 		srel->size += sizeof (Elf32_External_Rela);
2050 	    }
2051 	  else
2052 	    *local_got = (bfd_vma) -1;
2053 	}
2054     }
2055 
2056   /* Allocate global sym .plt and .got entries, and space for global
2057      sym dynamic relocs.  */
2058   elf_link_hash_traverse (htab, allocate_dynrelocs, info);
2059 
2060   /* We now have determined the sizes of the various dynamic sections.
2061      Allocate memory for them.  */
2062   relocs = false;
2063   for (s = dynobj->sections; s != NULL; s = s->next)
2064     {
2065       if ((s->flags & SEC_LINKER_CREATED) == 0)
2066 	continue;
2067 
2068       if (s == htab->splt
2069 	  || s == htab->sgot
2070 	  || s == htab->sgotplt
2071 	  || s == htab->sdynbss)
2072 	{
2073 	  /* Strip this section if we don't need it; see the
2074 	     comment below.  */
2075 	}
2076       else if (startswith (bfd_section_name (s), ".rela"))
2077 	{
2078 	  if (s->size != 0 && s != htab->srelplt)
2079 	    relocs = true;
2080 
2081 	  /* We use the reloc_count field as a counter if we need
2082 	     to copy relocs into the output file.  */
2083 	  s->reloc_count = 0;
2084 	}
2085       else
2086 	/* It's not one of our sections, so don't allocate space.  */
2087 	continue;
2088 
2089       if (s->size == 0)
2090 	{
2091 	  /* If we don't need this section, strip it from the
2092 	     output file.  This is mostly to handle .rela.bss and
2093 	     .rela.plt.  We must create both sections in
2094 	     create_dynamic_sections, because they must be created
2095 	     before the linker maps input sections to output
2096 	     sections.  The linker does that before
2097 	     adjust_dynamic_symbol is called, and it is that
2098 	     function which decides whether anything needs to go
2099 	     into these sections.  */
2100 	  s->flags |= SEC_EXCLUDE;
2101 	  continue;
2102 	}
2103 
2104       if ((s->flags & SEC_HAS_CONTENTS) == 0)
2105 	continue;
2106 
2107       /* Allocate memory for the section contents.  We use bfd_zalloc
2108 	 here in case unused entries are not reclaimed before the
2109 	 section's contents are written out.  This should not happen,
2110 	 but this way if it does, we get a R_M32R_NONE reloc instead
2111 	 of garbage.  */
2112       s->contents = bfd_zalloc (dynobj, s->size);
2113       if (s->contents == NULL)
2114 	return false;
2115     }
2116 
2117   return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs);
2118 }
2119 
2120 /* Relocate an M32R/D ELF section.
2121    There is some attempt to make this function usable for many architectures,
2122    both for RELA and REL type relocs, if only to serve as a learning tool.
2123 
2124    The RELOCATE_SECTION function is called by the new ELF backend linker
2125    to handle the relocations for a section.
2126 
2127    The relocs are always passed as Rela structures; if the section
2128    actually uses Rel structures, the r_addend field will always be
2129    zero.
2130 
2131    This function is responsible for adjust the section contents as
2132    necessary, and (if using Rela relocs and generating a
2133    relocatable output file) adjusting the reloc addend as
2134    necessary.
2135 
2136    This function does not have to worry about setting the reloc
2137    address or the reloc symbol index.
2138 
2139    LOCAL_SYMS is a pointer to the swapped in local symbols.
2140 
2141    LOCAL_SECTIONS is an array giving the section in the input file
2142    corresponding to the st_shndx field of each local symbol.
2143 
2144    The global hash table entry for the global symbols can be found
2145    via elf_sym_hashes (input_bfd).
2146 
2147    When generating relocatable output, this function must handle
2148    STB_LOCAL/STT_SECTION symbols specially.  The output symbol is
2149    going to be the section symbol corresponding to the output
2150    section, which means that the addend must be adjusted
2151    accordingly.  */
2152 
2153 static int
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)2154 m32r_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
2155 			   struct bfd_link_info *info,
2156 			   bfd *input_bfd,
2157 			   asection *input_section,
2158 			   bfd_byte *contents,
2159 			   Elf_Internal_Rela *relocs,
2160 			   Elf_Internal_Sym *local_syms,
2161 			   asection **local_sections)
2162 {
2163   Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2164   struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
2165   Elf_Internal_Rela *rel, *relend;
2166   /* Assume success.  */
2167   bool ret = true;
2168   struct elf_link_hash_table *htab = m32r_elf_hash_table (info);
2169   bfd_vma *local_got_offsets;
2170   asection *sgot, *splt, *sreloc;
2171   bfd_vma high_address = bfd_get_section_limit (input_bfd, input_section);
2172 
2173   if (htab == NULL)
2174     return false;
2175 
2176   local_got_offsets = elf_local_got_offsets (input_bfd);
2177 
2178   sgot = htab->sgot;
2179   splt = htab->splt;
2180   sreloc = NULL;
2181 
2182   rel = relocs;
2183   relend = relocs + input_section->reloc_count;
2184   for (; rel < relend; rel++)
2185     {
2186       int r_type;
2187       reloc_howto_type *howto;
2188       unsigned long r_symndx;
2189       struct elf_link_hash_entry *h;
2190       /* We can't modify r_addend here as elf_link_input_bfd has an assert to
2191 	 ensure it's zero (we use REL relocs, not RELA).  Therefore this
2192 	 should be assigning zero to `addend', but for clarity we use
2193 	 `r_addend'.  */
2194       bfd_vma addend = rel->r_addend;
2195       bfd_vma offset = rel->r_offset;
2196       bfd_vma relocation;
2197       Elf_Internal_Sym *sym;
2198       asection *sec;
2199       const char *sym_name;
2200       bfd_reloc_status_type r;
2201       const char *errmsg = NULL;
2202       bool use_rel = false;
2203 
2204       h = NULL;
2205       r_type = ELF32_R_TYPE (rel->r_info);
2206       if (r_type < 0 || r_type >= (int) R_M32R_max)
2207 	{
2208 	  /* xgettext:c-format */
2209 	  _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
2210 			      input_bfd, (int) r_type);
2211 	  bfd_set_error (bfd_error_bad_value);
2212 	  ret = false;
2213 	  continue;
2214 	}
2215 
2216       if (   r_type == R_M32R_GNU_VTENTRY
2217 	  || r_type == R_M32R_GNU_VTINHERIT
2218 	  || r_type == R_M32R_NONE
2219 	  || r_type == R_M32R_RELA_GNU_VTENTRY
2220 	  || r_type == R_M32R_RELA_GNU_VTINHERIT)
2221 	continue;
2222 
2223       if (r_type <= R_M32R_GNU_VTENTRY)
2224 	use_rel = true;
2225 
2226       howto = m32r_elf_howto_table + r_type;
2227       r_symndx = ELF32_R_SYM (rel->r_info);
2228 
2229       sym = NULL;
2230       sec = NULL;
2231       h = NULL;
2232 
2233       if (r_symndx < symtab_hdr->sh_info)
2234 	{
2235 	  /* Local symbol.  */
2236 	  sym = local_syms + r_symndx;
2237 	  sec = local_sections[r_symndx];
2238 	  sym_name = "<local symbol>";
2239 
2240 	  if (!use_rel)
2241 	    {
2242 	      relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
2243 	      addend = rel->r_addend;
2244 	    }
2245 	  else
2246 	    {
2247 	      relocation = (sec->output_section->vma
2248 			    + sec->output_offset
2249 			    + sym->st_value);
2250 	    }
2251 	}
2252       else
2253 	{
2254 	  /* External symbol.  */
2255 	  relocation = 0;
2256 
2257 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
2258 
2259 	  if (info->wrap_hash != NULL
2260 	      && (input_section->flags & SEC_DEBUGGING) != 0)
2261 	    h = ((struct elf_link_hash_entry *)
2262 		 unwrap_hash_lookup (info, input_bfd, &h->root));
2263 
2264 	  while (h->root.type == bfd_link_hash_indirect
2265 		 || h->root.type == bfd_link_hash_warning)
2266 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
2267 	  sym_name = h->root.root.string;
2268 
2269 	  if (h->root.type == bfd_link_hash_defined
2270 	      || h->root.type == bfd_link_hash_defweak)
2271 	    {
2272 	      bool dyn;
2273 	      sec = h->root.u.def.section;
2274 
2275 	      dyn = htab->dynamic_sections_created;
2276 	      sec = h->root.u.def.section;
2277 	      if (r_type == R_M32R_GOTPC24
2278 		  || (r_type == R_M32R_GOTPC_HI_ULO
2279 		      || r_type == R_M32R_GOTPC_HI_SLO
2280 		      || r_type == R_M32R_GOTPC_LO)
2281 		  || (r_type == R_M32R_26_PLTREL
2282 		      && h->plt.offset != (bfd_vma) -1)
2283 		  || ((r_type == R_M32R_GOT24
2284 		       || r_type == R_M32R_GOT16_HI_ULO
2285 		       || r_type == R_M32R_GOT16_HI_SLO
2286 		       || r_type == R_M32R_GOT16_LO)
2287 		      && WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2288 							  bfd_link_pic (info),
2289 							  h)
2290 		      && (! bfd_link_pic (info)
2291 			  || (! info->symbolic && h->dynindx != -1)
2292 			  || !h->def_regular))
2293 		  || (bfd_link_pic (info)
2294 		      && ((! info->symbolic && h->dynindx != -1)
2295 			  || !h->def_regular)
2296 		      && (((r_type == R_M32R_16_RELA
2297 			    || r_type == R_M32R_32_RELA
2298 			    || r_type == R_M32R_24_RELA
2299 			    || r_type == R_M32R_HI16_ULO_RELA
2300 			    || r_type == R_M32R_HI16_SLO_RELA
2301 			    || r_type == R_M32R_LO16_RELA)
2302 			   && !h->forced_local)
2303 			  || r_type == R_M32R_REL32
2304 			  || r_type == R_M32R_10_PCREL_RELA
2305 			  || r_type == R_M32R_18_PCREL_RELA
2306 			  || r_type == R_M32R_26_PCREL_RELA)
2307 		      && ((input_section->flags & SEC_ALLOC) != 0
2308 			  /* DWARF will emit R_M32R_16(24,32) relocations
2309 			     in its sections against symbols defined
2310 			     externally in shared libraries.  We can't do
2311 			     anything with them here.  */
2312 			  || ((input_section->flags & SEC_DEBUGGING) != 0
2313 			      && h->def_dynamic))))
2314 		{
2315 		  /* In these cases, we don't need the relocation
2316 		     value.  We check specially because in some
2317 		     obscure cases sec->output_section will be NULL.  */
2318 		}
2319 	      else if (sec->output_section != NULL)
2320 		relocation = (h->root.u.def.value
2321 			      + sec->output_section->vma
2322 			      + sec->output_offset);
2323 	      else if (!bfd_link_relocatable (info)
2324 		       && (_bfd_elf_section_offset (output_bfd, info,
2325 						    input_section,
2326 						    rel->r_offset)
2327 			   != (bfd_vma) -1))
2328 		{
2329 		  _bfd_error_handler
2330 		    /* xgettext:c-format */
2331 		    (_("%pB(%pA+%#" PRIx64 "): unresolvable %s relocation "
2332 		       "against symbol `%s'"),
2333 		     input_bfd,
2334 		     input_section,
2335 		     (uint64_t) rel->r_offset,
2336 		     howto->name,
2337 		     h->root.root.string);
2338 		}
2339 	    }
2340 	  else if (h->root.type == bfd_link_hash_undefweak)
2341 	    ;
2342 	  else if (info->unresolved_syms_in_objects == RM_IGNORE
2343 		   && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
2344 	    ;
2345 	  else if (!bfd_link_relocatable (info))
2346             info->callbacks->undefined_symbol
2347 	      (info, h->root.root.string, input_bfd, input_section, offset,
2348 	       (info->unresolved_syms_in_objects == RM_DIAGNOSE
2349 		&& !info->warn_unresolved_syms)
2350 	       || ELF_ST_VISIBILITY (h->other));
2351         }
2352 
2353       if (sec != NULL && discarded_section (sec))
2354 	RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
2355 					 rel, 1, relend, howto, 0, contents);
2356 
2357       if (bfd_link_relocatable (info) && !use_rel)
2358 	{
2359 	  /* This is a relocatable link.  We don't have to change
2360 	     anything, unless the reloc is against a section symbol,
2361 	     in which case we have to adjust according to where the
2362 	     section symbol winds up in the output section.  */
2363 	  if (sym != NULL && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
2364 	    rel->r_addend += sec->output_offset;
2365 	  continue;
2366 	}
2367 
2368       if (bfd_link_relocatable (info) && use_rel)
2369 	{
2370 	  /* This is a relocatable link.  We don't have to change
2371 	     anything, unless the reloc is against a section symbol,
2372 	     in which case we have to adjust according to where the
2373 	     section symbol winds up in the output section.  */
2374 	  if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2375 	    continue;
2376 
2377 	  addend += sec->output_offset;
2378 
2379 	  /* If partial_inplace, we need to store any additional addend
2380 	     back in the section.  */
2381 	  if (! howto->partial_inplace)
2382 	    continue;
2383 	  /* ??? Here is a nice place to call a special_function
2384 	     like handler.  */
2385 	  if (r_type != R_M32R_HI16_SLO && r_type != R_M32R_HI16_ULO)
2386 	    r = _bfd_relocate_contents (howto, input_bfd,
2387 					addend, contents + offset);
2388 	  else
2389 	    {
2390 	      Elf_Internal_Rela *lorel;
2391 
2392 	      /* We allow an arbitrary number of HI16 relocs before the
2393 		 LO16 reloc.  This permits gcc to emit the HI and LO relocs
2394 		 itself.  */
2395 	      for (lorel = rel + 1;
2396 		   (lorel < relend
2397 		    && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2398 			|| ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2399 		   lorel++)
2400 		continue;
2401 	      if (lorel < relend
2402 		  && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2403 		{
2404 		  m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2405 					  contents, addend);
2406 		  r = bfd_reloc_ok;
2407 		}
2408 	      else
2409 		r = _bfd_relocate_contents (howto, input_bfd,
2410 					    addend, contents + offset);
2411 	    }
2412 	}
2413       else
2414 	{
2415 	  /* Sanity check the address.  */
2416 	  if (offset > high_address)
2417 	    {
2418 	      r = bfd_reloc_outofrange;
2419 	      goto check_reloc;
2420 	    }
2421 
2422 	  switch ((int) r_type)
2423 	    {
2424 	    case R_M32R_GOTOFF:
2425 	      /* Relocation is relative to the start of the global offset
2426 		 table (for ld24 rx, #uimm24). eg access at label+addend
2427 
2428 		 ld24 rx. #label@GOTOFF + addend
2429 		 sub  rx, r12.  */
2430 
2431 	      BFD_ASSERT (sgot != NULL);
2432 
2433 	      relocation = -(relocation - sgot->output_section->vma);
2434 	      rel->r_addend = -rel->r_addend;
2435 	      break;
2436 
2437 	    case R_M32R_GOTOFF_HI_ULO:
2438 	    case R_M32R_GOTOFF_HI_SLO:
2439 	    case R_M32R_GOTOFF_LO:
2440 	      BFD_ASSERT (sgot != NULL);
2441 
2442 	      relocation -= sgot->output_section->vma;
2443 
2444 	      if ((r_type == R_M32R_GOTOFF_HI_SLO)
2445 		  && ((relocation + rel->r_addend) & 0x8000))
2446 		rel->r_addend += 0x10000;
2447 	      break;
2448 
2449 	    case R_M32R_GOTPC24:
2450 	      /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2451 		 ld24 rx,#_GLOBAL_OFFSET_TABLE_
2452 	       */
2453 	     relocation = sgot->output_section->vma;
2454 	     break;
2455 
2456 	    case R_M32R_GOTPC_HI_ULO:
2457 	    case R_M32R_GOTPC_HI_SLO:
2458 	    case R_M32R_GOTPC_LO:
2459 	      {
2460 		/* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
2461 		   bl .+4
2462 		   seth rx,#high(_GLOBAL_OFFSET_TABLE_)
2463 		   or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2464 		   or
2465 		   bl .+4
2466 		   seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
2467 		   add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
2468 		 */
2469 		relocation = sgot->output_section->vma;
2470 		relocation -= (input_section->output_section->vma
2471 			       + input_section->output_offset
2472 			       + rel->r_offset);
2473 		if ((r_type == R_M32R_GOTPC_HI_SLO)
2474 		     && ((relocation + rel->r_addend) & 0x8000))
2475 		  rel->r_addend += 0x10000;
2476 
2477 		break;
2478 	      }
2479 	    case R_M32R_GOT16_HI_ULO:
2480 	    case R_M32R_GOT16_HI_SLO:
2481 	    case R_M32R_GOT16_LO:
2482 	      /* Fall through.  */
2483 	    case R_M32R_GOT24:
2484 	      /* Relocation is to the entry for this symbol in the global
2485 		 offset table.  */
2486 	      BFD_ASSERT (sgot != NULL);
2487 
2488 	      if (h != NULL)
2489 		{
2490 		  bool dyn;
2491 		  bfd_vma off;
2492 
2493 		  off = h->got.offset;
2494 		  BFD_ASSERT (off != (bfd_vma) -1);
2495 
2496 		  dyn = htab->dynamic_sections_created;
2497 		  if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
2498 							 bfd_link_pic (info),
2499 							 h)
2500 		      || (bfd_link_pic (info)
2501 			  && (info->symbolic
2502 			      || h->dynindx == -1
2503 			      || h->forced_local)
2504 			  && h->def_regular))
2505 		    {
2506 		      /* This is actually a static link, or it is a
2507 			 -Bsymbolic link and the symbol is defined
2508 			 locally, or the symbol was forced to be local
2509 			 because of a version file.  We must initialize
2510 			 this entry in the global offset table.  Since the
2511 			 offset must always be a multiple of 4, we use the
2512 			 least significant bit to record whether we have
2513 			 initialized it already.
2514 
2515 			 When doing a dynamic link, we create a .rela.got
2516 			 relocation entry to initialize the value.  This
2517 			 is done in the finish_dynamic_symbol routine.  */
2518 		      if ((off & 1) != 0)
2519 			off &= ~1;
2520 		      else
2521 			{
2522 			  bfd_put_32 (output_bfd, relocation,
2523 				      sgot->contents + off);
2524 			  h->got.offset |= 1;
2525 			}
2526 		    }
2527 
2528 		  relocation = sgot->output_offset + off;
2529 		}
2530 	      else
2531 		{
2532 		  bfd_vma off;
2533 		  bfd_byte *loc;
2534 
2535 		  BFD_ASSERT (local_got_offsets != NULL
2536 			      && local_got_offsets[r_symndx] != (bfd_vma) -1);
2537 
2538 		  off = local_got_offsets[r_symndx];
2539 
2540 		  /* The offset must always be a multiple of 4.  We use
2541 		     the least significant bit to record whether we have
2542 		     already processed this entry.  */
2543 		  if ((off & 1) != 0)
2544 		    off &= ~1;
2545 		  else
2546 		    {
2547 		      bfd_put_32 (output_bfd, relocation, sgot->contents + off);
2548 
2549 		      if (bfd_link_pic (info))
2550 			{
2551 			  asection *srelgot;
2552 			  Elf_Internal_Rela outrel;
2553 
2554 			  /* We need to generate a R_M32R_RELATIVE reloc
2555 			     for the dynamic linker.  */
2556 			  srelgot = htab->srelgot;
2557 			  BFD_ASSERT (srelgot != NULL);
2558 
2559 			  outrel.r_offset = (sgot->output_section->vma
2560 					     + sgot->output_offset
2561 					     + off);
2562 			  outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2563 			  outrel.r_addend = relocation;
2564 			  loc = srelgot->contents;
2565 			  loc += srelgot->reloc_count * sizeof (Elf32_External_Rela);
2566 			  bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2567 			  ++srelgot->reloc_count;
2568 			}
2569 
2570 		      local_got_offsets[r_symndx] |= 1;
2571 		    }
2572 
2573 		  relocation = sgot->output_offset + off;
2574 		}
2575 	      if ((r_type == R_M32R_GOT16_HI_SLO)
2576 		  && ((relocation + rel->r_addend) & 0x8000))
2577 		rel->r_addend += 0x10000;
2578 
2579 	      break;
2580 
2581 	    case R_M32R_26_PLTREL:
2582 	      /* Relocation is to the entry for this symbol in the
2583 		 procedure linkage table.  */
2584 
2585 	      /* The native assembler will generate a 26_PLTREL reloc
2586 		 for a local symbol if you assemble a call from one
2587 		 section to another when using -K pic. */
2588 	      if (h == NULL)
2589 		break;
2590 
2591 	      if (h->forced_local)
2592 		break;
2593 
2594 	      if (h->plt.offset == (bfd_vma) -1)
2595 		/* We didn't make a PLT entry for this symbol.  This
2596 		   happens when statically linking PIC code, or when
2597 		   using -Bsymbolic.  */
2598 		break;
2599 
2600 	      relocation = (splt->output_section->vma
2601 			    + splt->output_offset
2602 			    + h->plt.offset);
2603 	      break;
2604 
2605 	    case R_M32R_HI16_SLO_RELA:
2606 	      if ((relocation + rel->r_addend) & 0x8000)
2607 		rel->r_addend += 0x10000;
2608 	      /* Fall through.  */
2609 
2610 	    case R_M32R_16_RELA:
2611 	    case R_M32R_24_RELA:
2612 	    case R_M32R_32_RELA:
2613 	    case R_M32R_REL32:
2614 	    case R_M32R_10_PCREL_RELA:
2615 	    case R_M32R_18_PCREL_RELA:
2616 	    case R_M32R_26_PCREL_RELA:
2617 	    case R_M32R_HI16_ULO_RELA:
2618 	    case R_M32R_LO16_RELA:
2619 	      if (bfd_link_pic (info)
2620 		  && r_symndx != STN_UNDEF
2621 		  && (input_section->flags & SEC_ALLOC) != 0
2622 		  && ((   r_type != R_M32R_10_PCREL_RELA
2623 		       && r_type != R_M32R_18_PCREL_RELA
2624 		       && r_type != R_M32R_26_PCREL_RELA
2625 		       && r_type != R_M32R_REL32)
2626 		      || (h != NULL
2627 			  && h->dynindx != -1
2628 			  && (! info->symbolic
2629 			      || !h->def_regular))))
2630 		{
2631 		  Elf_Internal_Rela outrel;
2632 		  bool skip, relocate;
2633 		  bfd_byte *loc;
2634 
2635 		  /* When generating a shared object, these relocations
2636 		     are copied into the output file to be resolved at run
2637 		     time.  */
2638 		  if (sreloc == NULL)
2639 		    {
2640 		      sreloc = _bfd_elf_get_dynamic_reloc_section
2641 			(input_bfd, input_section, /*rela?*/ true);
2642 		      if (sreloc == NULL)
2643 			return false;
2644 		    }
2645 
2646 		  skip = false;
2647 		  relocate = false;
2648 
2649 		  outrel.r_offset = _bfd_elf_section_offset (output_bfd,
2650 							     info,
2651 							     input_section,
2652 							     rel->r_offset);
2653 		  if (outrel.r_offset == (bfd_vma) -1)
2654 		    skip = true;
2655 		  else if (outrel.r_offset == (bfd_vma) -2)
2656 		    skip = relocate = true;
2657 		  outrel.r_offset += (input_section->output_section->vma
2658 				      + input_section->output_offset);
2659 
2660 		  if (skip)
2661 		    memset (&outrel, 0, sizeof outrel);
2662 		  else if (   r_type == R_M32R_10_PCREL_RELA
2663 			   || r_type == R_M32R_18_PCREL_RELA
2664 			   || r_type == R_M32R_26_PCREL_RELA
2665 			   || r_type == R_M32R_REL32)
2666 		    {
2667 		      BFD_ASSERT (h != NULL && h->dynindx != -1);
2668 		      outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2669 		      outrel.r_addend = rel->r_addend;
2670 		    }
2671 		  else
2672 		    {
2673 		    /* h->dynindx may be -1 if this symbol was marked to
2674 		       become local.  */
2675 		    if (h == NULL
2676 			|| ((info->symbolic || h->dynindx == -1)
2677 			     && h->def_regular))
2678 		      {
2679 			relocate = true;
2680 			outrel.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
2681 			outrel.r_addend = relocation + rel->r_addend;
2682 		      }
2683 		    else
2684 		      {
2685 			BFD_ASSERT (h->dynindx != -1);
2686 			outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
2687 			outrel.r_addend = relocation + rel->r_addend;
2688 		      }
2689 		    }
2690 
2691 		  loc = sreloc->contents;
2692 		  loc += sreloc->reloc_count * sizeof (Elf32_External_Rela);
2693 		  bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
2694 		  ++sreloc->reloc_count;
2695 
2696 		  /* If this reloc is against an external symbol, we do
2697 		     not want to fiddle with the addend.  Otherwise, we
2698 		     need to include the symbol value so that it becomes
2699 		     an addend for the dynamic reloc.  */
2700 		  if (! relocate)
2701 		    continue;
2702 		  break;
2703 		}
2704 	      else if (r_type != R_M32R_10_PCREL_RELA)
2705 		break;
2706 	      /* Fall through.  */
2707 
2708 	    case (int) R_M32R_10_PCREL :
2709 	      r = m32r_elf_do_10_pcrel_reloc (input_bfd, howto, input_section,
2710 					      contents, offset,
2711 					      sec, relocation, addend);
2712 	      goto check_reloc;
2713 
2714 	    case (int) R_M32R_HI16_SLO :
2715 	    case (int) R_M32R_HI16_ULO :
2716 	      {
2717 		Elf_Internal_Rela *lorel;
2718 
2719 		/* We allow an arbitrary number of HI16 relocs before the
2720 		   LO16 reloc.  This permits gcc to emit the HI and LO relocs
2721 		   itself.  */
2722 		for (lorel = rel + 1;
2723 		     (lorel < relend
2724 		      && (ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_SLO
2725 			  || ELF32_R_TYPE (lorel->r_info) == R_M32R_HI16_ULO));
2726 		     lorel++)
2727 		  continue;
2728 		if (lorel < relend
2729 		    && ELF32_R_TYPE (lorel->r_info) == R_M32R_LO16)
2730 		  {
2731 		    m32r_elf_relocate_hi16 (input_bfd, r_type, rel, lorel,
2732 					    contents, relocation + addend);
2733 		    r = bfd_reloc_ok;
2734 		  }
2735 		else
2736 		  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2737 						contents, offset,
2738 						relocation, addend);
2739 	      }
2740 
2741 	      goto check_reloc;
2742 
2743 	    case (int) R_M32R_SDA16_RELA:
2744 	    case (int) R_M32R_SDA16 :
2745 	      {
2746 		const char *name;
2747 
2748 		BFD_ASSERT (sec != NULL);
2749 		name = bfd_section_name (sec);
2750 
2751 		if (   strcmp (name, ".sdata") == 0
2752 		    || strcmp (name, ".sbss") == 0
2753 		    || strcmp (name, ".scommon") == 0)
2754 		  {
2755 		    bfd_vma sda_base;
2756 		    bfd *out_bfd = sec->output_section->owner;
2757 
2758 		    r = m32r_elf_final_sda_base (out_bfd, info,
2759 						 &errmsg,
2760 						 &sda_base);
2761 		    if (r != bfd_reloc_ok)
2762 		      {
2763 			ret = false;
2764 			goto check_reloc;
2765 		      }
2766 
2767 		    /* At this point `relocation' contains the object's
2768 		       address.  */
2769 		    relocation -= sda_base;
2770 		    /* Now it contains the offset from _SDA_BASE_.  */
2771 		  }
2772 		else
2773 		  {
2774 		    _bfd_error_handler
2775 		      /* xgettext:c-format */
2776 		      (_("%pB: the target (%s) of an %s relocation"
2777 			 " is in the wrong section (%pA)"),
2778 		       input_bfd,
2779 		       sym_name,
2780 		       m32r_elf_howto_table[(int) r_type].name,
2781 		       sec);
2782 		    /*bfd_set_error (bfd_error_bad_value); ??? why? */
2783 		    ret = false;
2784 		    continue;
2785 		  }
2786 	      }
2787 	      /* Fall through.  */
2788 
2789 	    default : /* OLD_M32R_RELOC */
2790 
2791 	      r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2792 					    contents, offset,
2793 					    relocation, addend);
2794 	      goto check_reloc;
2795 	    }
2796 
2797 	  r = _bfd_final_link_relocate (howto, input_bfd, input_section,
2798 					contents, rel->r_offset,
2799 					relocation, rel->r_addend);
2800 
2801 	}
2802 
2803     check_reloc:
2804 
2805       if (r != bfd_reloc_ok)
2806 	{
2807 	  /* FIXME: This should be generic enough to go in a utility.  */
2808 	  const char *name;
2809 
2810 	  if (h != NULL)
2811 	    name = h->root.root.string;
2812 	  else
2813 	    {
2814 	      name = (bfd_elf_string_from_elf_section
2815 		      (input_bfd, symtab_hdr->sh_link, sym->st_name));
2816 	      if (name == NULL || *name == '\0')
2817 		name = bfd_section_name (sec);
2818 	    }
2819 
2820 	  if (errmsg != NULL)
2821 	    goto common_error;
2822 
2823 	  switch (r)
2824 	    {
2825 	    case bfd_reloc_overflow:
2826 	      (*info->callbacks->reloc_overflow)
2827 		(info, (h ? &h->root : NULL), name, howto->name,
2828 		 (bfd_vma) 0, input_bfd, input_section, offset);
2829 	      break;
2830 
2831 	    case bfd_reloc_undefined:
2832 	      (*info->callbacks->undefined_symbol)
2833 		(info, name, input_bfd, input_section, offset, true);
2834 	      break;
2835 
2836 	    case bfd_reloc_outofrange:
2837 	      errmsg = _("internal error: out of range error");
2838 	      goto common_error;
2839 
2840 	    case bfd_reloc_notsupported:
2841 	      errmsg = _("internal error: unsupported relocation error");
2842 	      goto common_error;
2843 
2844 	    case bfd_reloc_dangerous:
2845 	      errmsg = _("internal error: dangerous error");
2846 	      goto common_error;
2847 
2848 	    default:
2849 	      errmsg = _("internal error: unknown error");
2850 	      /* fall through */
2851 
2852 	    common_error:
2853 	      (*info->callbacks->warning) (info, errmsg, name, input_bfd,
2854 					   input_section, offset);
2855 	      break;
2856 	    }
2857 	}
2858     }
2859 
2860   return ret;
2861 }
2862 
2863 /* Finish up dynamic symbol handling.  We set the contents of various
2864    dynamic sections here.  */
2865 
2866 static bool
m32r_elf_finish_dynamic_symbol(bfd * output_bfd,struct bfd_link_info * info,struct elf_link_hash_entry * h,Elf_Internal_Sym * sym)2867 m32r_elf_finish_dynamic_symbol (bfd *output_bfd,
2868 				struct bfd_link_info *info,
2869 				struct elf_link_hash_entry *h,
2870 				Elf_Internal_Sym *sym)
2871 {
2872   struct elf_link_hash_table *htab;
2873   bfd_byte *loc;
2874 
2875 #ifdef DEBUG_PIC
2876   printf ("m32r_elf_finish_dynamic_symbol()\n");
2877 #endif
2878 
2879   htab = m32r_elf_hash_table (info);
2880   if (htab == NULL)
2881     return false;
2882 
2883   if (h->plt.offset != (bfd_vma) -1)
2884     {
2885       asection *splt;
2886       asection *sgot;
2887       asection *srela;
2888 
2889       bfd_vma plt_index;
2890       bfd_vma got_offset;
2891       Elf_Internal_Rela rela;
2892 
2893       /* This symbol has an entry in the procedure linkage table.  Set
2894 	 it up.  */
2895 
2896       BFD_ASSERT (h->dynindx != -1);
2897 
2898       splt = htab->splt;
2899       sgot = htab->sgotplt;
2900       srela = htab->srelplt;
2901       BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL);
2902 
2903       /* Get the index in the procedure linkage table which
2904 	 corresponds to this symbol.  This is the index of this symbol
2905 	 in all the symbols for which we are making plt entries.  The
2906 	 first entry in the procedure linkage table is reserved.  */
2907       plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
2908 
2909       /* Get the offset into the .got table of the entry that
2910 	corresponds to this function.  Each .got entry is 4 bytes.
2911 	The first three are reserved.  */
2912       got_offset = (plt_index + 3) * 4;
2913 
2914       /* Fill in the entry in the procedure linkage table.  */
2915       if (! bfd_link_pic (info))
2916 	{
2917 	  bfd_put_32 (output_bfd,
2918 	      (PLT_ENTRY_WORD0b
2919 	       + (((sgot->output_section->vma
2920 		    + sgot->output_offset
2921 		    + got_offset) >> 16) & 0xffff)),
2922 	      splt->contents + h->plt.offset);
2923 	  bfd_put_32 (output_bfd,
2924 	      (PLT_ENTRY_WORD1b
2925 	       + ((sgot->output_section->vma
2926 		   + sgot->output_offset
2927 		   + got_offset) & 0xffff)),
2928 	      splt->contents + h->plt.offset + 4);
2929 	  bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2930 	      splt->contents + h->plt.offset + 8);
2931 	  bfd_put_32 (output_bfd,
2932 	      (PLT_ENTRY_WORD3
2933 	       + plt_index * sizeof (Elf32_External_Rela)),
2934 	      splt->contents + h->plt.offset + 12);
2935 	  bfd_put_32 (output_bfd,
2936 	      (PLT_ENTRY_WORD4
2937 	       + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2938 	      splt->contents + h->plt.offset + 16);
2939 	}
2940       else
2941 	{
2942 	  bfd_put_32 (output_bfd,
2943 	      PLT_ENTRY_WORD0 + got_offset,
2944 	      splt->contents + h->plt.offset);
2945 	  bfd_put_32 (output_bfd, PLT_ENTRY_WORD1,
2946 	      splt->contents + h->plt.offset + 4);
2947 	  bfd_put_32 (output_bfd, PLT_ENTRY_WORD2,
2948 	      splt->contents + h->plt.offset + 8);
2949 	  bfd_put_32 (output_bfd,
2950 	      (PLT_ENTRY_WORD3
2951 	       + plt_index * sizeof (Elf32_External_Rela)),
2952 	      splt->contents + h->plt.offset + 12);
2953 	  bfd_put_32 (output_bfd,
2954 	      (PLT_ENTRY_WORD4
2955 	       + (((unsigned int) ((- (h->plt.offset + 16)) >> 2)) & 0xffffff)),
2956 	      splt->contents + h->plt.offset + 16);
2957 	}
2958 
2959       /* Fill in the entry in the global offset table.  */
2960       bfd_put_32 (output_bfd,
2961 		  (splt->output_section->vma
2962 		   + splt->output_offset
2963 		   + h->plt.offset
2964 		   + 12), /* same offset */
2965 		  sgot->contents + got_offset);
2966 
2967       /* Fill in the entry in the .rela.plt section.  */
2968       rela.r_offset = (sgot->output_section->vma
2969 		       + sgot->output_offset
2970 		       + got_offset);
2971       rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_JMP_SLOT);
2972       rela.r_addend = 0;
2973       loc = srela->contents;
2974       loc += plt_index * sizeof (Elf32_External_Rela);
2975       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
2976 
2977       if (!h->def_regular)
2978 	{
2979 	  /* Mark the symbol as undefined, rather than as defined in
2980 	     the .plt section.  Leave the value alone.  */
2981 	  sym->st_shndx = SHN_UNDEF;
2982 	}
2983     }
2984 
2985   if (h->got.offset != (bfd_vma) -1)
2986     {
2987       asection *sgot;
2988       asection *srela;
2989       Elf_Internal_Rela rela;
2990 
2991       /* This symbol has an entry in the global offset table.  Set it
2992 	 up.  */
2993 
2994       sgot = htab->sgot;
2995       srela = htab->srelgot;
2996       BFD_ASSERT (sgot != NULL && srela != NULL);
2997 
2998       rela.r_offset = (sgot->output_section->vma
2999 		       + sgot->output_offset
3000 		       + (h->got.offset &~ 1));
3001 
3002       /* If this is a -Bsymbolic link, and the symbol is defined
3003 	 locally, we just want to emit a RELATIVE reloc.  Likewise if
3004 	 the symbol was forced to be local because of a version file.
3005 	 The entry in the global offset table will already have been
3006 	 initialized in the relocate_section function.  */
3007       if (bfd_link_pic (info)
3008 	  && (info->symbolic
3009 	      || h->dynindx == -1
3010 	      || h->forced_local)
3011 	  && h->def_regular)
3012 	{
3013 	  rela.r_info = ELF32_R_INFO (0, R_M32R_RELATIVE);
3014 	  rela.r_addend = (h->root.u.def.value
3015 			   + h->root.u.def.section->output_section->vma
3016 			   + h->root.u.def.section->output_offset);
3017 	}
3018       else
3019 	{
3020 	  BFD_ASSERT ((h->got.offset & 1) == 0);
3021 	  bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset);
3022 	  rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_GLOB_DAT);
3023 	  rela.r_addend = 0;
3024 	}
3025 
3026       loc = srela->contents;
3027       loc += srela->reloc_count * sizeof (Elf32_External_Rela);
3028       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3029       ++srela->reloc_count;
3030     }
3031 
3032   if (h->needs_copy)
3033     {
3034       asection *s;
3035       Elf_Internal_Rela rela;
3036 
3037       /* This symbols needs a copy reloc.  Set it up.  */
3038 
3039       BFD_ASSERT (h->dynindx != -1
3040 		  && (h->root.type == bfd_link_hash_defined
3041 		      || h->root.type == bfd_link_hash_defweak));
3042 
3043       s = bfd_get_linker_section (htab->dynobj, ".rela.bss");
3044       BFD_ASSERT (s != NULL);
3045 
3046       rela.r_offset = (h->root.u.def.value
3047 		       + h->root.u.def.section->output_section->vma
3048 		       + h->root.u.def.section->output_offset);
3049       rela.r_info = ELF32_R_INFO (h->dynindx, R_M32R_COPY);
3050       rela.r_addend = 0;
3051       loc = s->contents;
3052       loc += s->reloc_count * sizeof (Elf32_External_Rela);
3053       bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
3054       ++s->reloc_count;
3055     }
3056 
3057   /* Mark some specially defined symbols as absolute.  */
3058   if (h == htab->hdynamic || h == htab->hgot)
3059     sym->st_shndx = SHN_ABS;
3060 
3061   return true;
3062 }
3063 
3064 
3065 /* Finish up the dynamic sections.  */
3066 
3067 static bool
m32r_elf_finish_dynamic_sections(bfd * output_bfd,struct bfd_link_info * info)3068 m32r_elf_finish_dynamic_sections (bfd *output_bfd,
3069 				  struct bfd_link_info *info)
3070 {
3071   struct elf_link_hash_table *htab;
3072   bfd *dynobj;
3073   asection *sdyn;
3074   asection *sgot;
3075 
3076 #ifdef DEBUG_PIC
3077   printf ("m32r_elf_finish_dynamic_sections()\n");
3078 #endif
3079 
3080   htab = m32r_elf_hash_table (info);
3081   if (htab == NULL)
3082     return false;
3083 
3084   dynobj = htab->dynobj;
3085 
3086   sgot = htab->sgotplt;
3087   sdyn = bfd_get_linker_section (dynobj, ".dynamic");
3088 
3089   if (htab->dynamic_sections_created)
3090     {
3091       asection *splt;
3092       Elf32_External_Dyn *dyncon, *dynconend;
3093 
3094       BFD_ASSERT (sgot != NULL && sdyn != NULL);
3095 
3096       dyncon = (Elf32_External_Dyn *) sdyn->contents;
3097       dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
3098 
3099       for (; dyncon < dynconend; dyncon++)
3100 	{
3101 	  Elf_Internal_Dyn dyn;
3102 	  asection *s;
3103 
3104 	  bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
3105 
3106 	  switch (dyn.d_tag)
3107 	    {
3108 	    default:
3109 	      break;
3110 
3111 	    case DT_PLTGOT:
3112 	      s = htab->sgotplt;
3113 	      goto get_vma;
3114 	    case DT_JMPREL:
3115 	      s = htab->srelplt;
3116 	    get_vma:
3117 	      dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
3118 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3119 	      break;
3120 
3121 	    case DT_PLTRELSZ:
3122 	      s = htab->srelplt;
3123 	      dyn.d_un.d_val = s->size;
3124 	      bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
3125 	      break;
3126 	    }
3127 	}
3128 
3129       /* Fill in the first entry in the procedure linkage table.  */
3130       splt = htab->splt;
3131       if (splt && splt->size > 0)
3132 	{
3133 	  if (bfd_link_pic (info))
3134 	    {
3135 	      bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents);
3136 	      bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4);
3137 	      bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8);
3138 	      bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12);
3139 	      bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16);
3140 	    }
3141 	  else
3142 	    {
3143 	      unsigned long addr;
3144 	      /* addr = .got + 4 */
3145 	      addr = sgot->output_section->vma + sgot->output_offset + 4;
3146 	      bfd_put_32 (output_bfd,
3147 			  PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff),
3148 			  splt->contents);
3149 	      bfd_put_32 (output_bfd,
3150 			  PLT0_ENTRY_WORD1 | (addr & 0xffff),
3151 			  splt->contents + 4);
3152 	      bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8);
3153 	      bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12);
3154 	      bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16);
3155 	    }
3156 
3157 	  elf_section_data (splt->output_section)->this_hdr.sh_entsize =
3158 	    PLT_ENTRY_SIZE;
3159 	}
3160     }
3161 
3162   /* Fill in the first three entries in the global offset table.  */
3163   if (sgot && sgot->size > 0)
3164     {
3165       if (sdyn == NULL)
3166 	bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents);
3167       else
3168 	bfd_put_32 (output_bfd,
3169 		    sdyn->output_section->vma + sdyn->output_offset,
3170 		    sgot->contents);
3171       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4);
3172       bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8);
3173 
3174       elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4;
3175     }
3176 
3177   return true;
3178 }
3179 
3180 
3181 /* Set the right machine number.  */
3182 
3183 static bool
m32r_elf_object_p(bfd * abfd)3184 m32r_elf_object_p (bfd *abfd)
3185 {
3186   switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3187     {
3188     default:
3189     case E_M32R_ARCH:   (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r);  break;
3190     case E_M32RX_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32rx); break;
3191     case E_M32R2_ARCH:  (void) bfd_default_set_arch_mach (abfd, bfd_arch_m32r, bfd_mach_m32r2); break;
3192     }
3193   return true;
3194 }
3195 
3196 /* Store the machine number in the flags field.  */
3197 
3198 static bool
m32r_elf_final_write_processing(bfd * abfd)3199 m32r_elf_final_write_processing (bfd *abfd)
3200 {
3201   unsigned long val;
3202 
3203   switch (bfd_get_mach (abfd))
3204     {
3205     default:
3206     case bfd_mach_m32r:  val = E_M32R_ARCH; break;
3207     case bfd_mach_m32rx: val = E_M32RX_ARCH; break;
3208     case bfd_mach_m32r2: val = E_M32R2_ARCH; break;
3209     }
3210 
3211   elf_elfheader (abfd)->e_flags &=~ EF_M32R_ARCH;
3212   elf_elfheader (abfd)->e_flags |= val;
3213   return _bfd_elf_final_write_processing (abfd);
3214 }
3215 
3216 /* Function to keep M32R specific file flags.  */
3217 
3218 static bool
m32r_elf_set_private_flags(bfd * abfd,flagword flags)3219 m32r_elf_set_private_flags (bfd *abfd, flagword flags)
3220 {
3221   BFD_ASSERT (!elf_flags_init (abfd)
3222 	      || elf_elfheader (abfd)->e_flags == flags);
3223 
3224   elf_elfheader (abfd)->e_flags = flags;
3225   elf_flags_init (abfd) = true;
3226   return true;
3227 }
3228 
3229 /* Merge backend specific data from an object file to the output
3230    object file when linking.  */
3231 
3232 static bool
m32r_elf_merge_private_bfd_data(bfd * ibfd,struct bfd_link_info * info)3233 m32r_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
3234 {
3235   bfd *obfd = info->output_bfd;
3236   flagword out_flags;
3237   flagword in_flags;
3238 
3239   if (   bfd_get_flavour (ibfd) != bfd_target_elf_flavour
3240       || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
3241     return true;
3242 
3243   in_flags  = elf_elfheader (ibfd)->e_flags;
3244   out_flags = elf_elfheader (obfd)->e_flags;
3245 
3246   if (! elf_flags_init (obfd))
3247     {
3248       /* If the input is the default architecture then do not
3249 	 bother setting the flags for the output architecture,
3250 	 instead allow future merges to do this.  If no future
3251 	 merges ever set these flags then they will retain their
3252 	 unitialised values, which surprise surprise, correspond
3253 	 to the default values.  */
3254       if (bfd_get_arch_info (ibfd)->the_default)
3255 	return true;
3256 
3257       elf_flags_init (obfd) = true;
3258       elf_elfheader (obfd)->e_flags = in_flags;
3259 
3260       if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
3261 	  && bfd_get_arch_info (obfd)->the_default)
3262 	return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
3263 				  bfd_get_mach (ibfd));
3264 
3265       return true;
3266     }
3267 
3268   /* Check flag compatibility.  */
3269   if (in_flags == out_flags)
3270     return true;
3271 
3272   if ((in_flags & EF_M32R_ARCH) != (out_flags & EF_M32R_ARCH))
3273     {
3274       if (   ((in_flags  & EF_M32R_ARCH) != E_M32R_ARCH)
3275 	  || ((out_flags & EF_M32R_ARCH) == E_M32R_ARCH)
3276 	  || ((in_flags  & EF_M32R_ARCH) == E_M32R2_ARCH))
3277 	{
3278 	  _bfd_error_handler
3279 	    (_("%pB: instruction set mismatch with previous modules"), ibfd);
3280 
3281 	  bfd_set_error (bfd_error_bad_value);
3282 	  return false;
3283 	}
3284     }
3285 
3286   return true;
3287 }
3288 
3289 /* Display the flags field.  */
3290 
3291 static bool
m32r_elf_print_private_bfd_data(bfd * abfd,void * ptr)3292 m32r_elf_print_private_bfd_data (bfd *abfd, void * ptr)
3293 {
3294   FILE * file = (FILE *) ptr;
3295 
3296   BFD_ASSERT (abfd != NULL && ptr != NULL);
3297 
3298   _bfd_elf_print_private_bfd_data (abfd, ptr);
3299 
3300   fprintf (file, _("private flags = %lx"), elf_elfheader (abfd)->e_flags);
3301 
3302   switch (elf_elfheader (abfd)->e_flags & EF_M32R_ARCH)
3303     {
3304     default:
3305     case E_M32R_ARCH:  fprintf (file, _(": m32r instructions"));  break;
3306     case E_M32RX_ARCH: fprintf (file, _(": m32rx instructions")); break;
3307     case E_M32R2_ARCH: fprintf (file, _(": m32r2 instructions")); break;
3308     }
3309 
3310   fputc ('\n', file);
3311 
3312   return true;
3313 }
3314 
3315 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)3316 m32r_elf_gc_mark_hook (asection *sec,
3317 		       struct bfd_link_info *info,
3318 		       Elf_Internal_Rela *rel,
3319 		       struct elf_link_hash_entry *h,
3320 		       Elf_Internal_Sym *sym)
3321 {
3322   if (h != NULL)
3323     switch (ELF32_R_TYPE (rel->r_info))
3324       {
3325       case R_M32R_GNU_VTINHERIT:
3326       case R_M32R_GNU_VTENTRY:
3327       case R_M32R_RELA_GNU_VTINHERIT:
3328       case R_M32R_RELA_GNU_VTENTRY:
3329 	return NULL;
3330       }
3331 
3332   return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
3333 }
3334 
3335 /* Look through the relocs for a section during the first phase.
3336    Since we don't do .gots or .plts, we just need to consider the
3337    virtual table relocs for gc.  */
3338 
3339 static bool
m32r_elf_check_relocs(bfd * abfd,struct bfd_link_info * info,asection * sec,const Elf_Internal_Rela * relocs)3340 m32r_elf_check_relocs (bfd *abfd,
3341 		       struct bfd_link_info *info,
3342 		       asection *sec,
3343 		       const Elf_Internal_Rela *relocs)
3344 {
3345   Elf_Internal_Shdr *symtab_hdr;
3346   struct elf_link_hash_entry **sym_hashes;
3347   const Elf_Internal_Rela *rel;
3348   const Elf_Internal_Rela *rel_end;
3349   struct elf_link_hash_table *htab;
3350   bfd *dynobj;
3351   asection *sreloc;
3352 
3353   if (bfd_link_relocatable (info))
3354     return true;
3355 
3356   sreloc = NULL;
3357   symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
3358   sym_hashes = elf_sym_hashes (abfd);
3359 
3360   htab = m32r_elf_hash_table (info);
3361   if (htab == NULL)
3362     return false;
3363 
3364   dynobj = htab->dynobj;
3365 
3366   rel_end = relocs + sec->reloc_count;
3367   for (rel = relocs; rel < rel_end; rel++)
3368     {
3369       int r_type;
3370       struct elf_link_hash_entry *h;
3371       unsigned long r_symndx;
3372 
3373       r_symndx = ELF32_R_SYM (rel->r_info);
3374       r_type = ELF32_R_TYPE (rel->r_info);
3375       if (r_symndx < symtab_hdr->sh_info)
3376 	h = NULL;
3377       else
3378 	{
3379 	  h = sym_hashes[r_symndx - symtab_hdr->sh_info];
3380 	  while (h->root.type == bfd_link_hash_indirect
3381 		 || h->root.type == bfd_link_hash_warning)
3382 	    h = (struct elf_link_hash_entry *) h->root.u.i.link;
3383 	}
3384 
3385       /* Some relocs require a global offset table.  */
3386       if (htab->sgot == NULL)
3387 	{
3388 	  switch (r_type)
3389 	    {
3390 	    case R_M32R_GOT16_HI_ULO:
3391 	    case R_M32R_GOT16_HI_SLO:
3392 	    case R_M32R_GOTOFF:
3393 	    case R_M32R_GOTOFF_HI_ULO:
3394 	    case R_M32R_GOTOFF_HI_SLO:
3395 	    case R_M32R_GOTOFF_LO:
3396 	    case R_M32R_GOT16_LO:
3397 	    case R_M32R_GOTPC24:
3398 	    case R_M32R_GOTPC_HI_ULO:
3399 	    case R_M32R_GOTPC_HI_SLO:
3400 	    case R_M32R_GOTPC_LO:
3401 	    case R_M32R_GOT24:
3402 	      if (dynobj == NULL)
3403 		htab->dynobj = dynobj = abfd;
3404 	      if (!_bfd_elf_create_got_section (dynobj, info))
3405 		return false;
3406 	      break;
3407 
3408 	    default:
3409 	      break;
3410 	  }
3411 	}
3412 
3413       switch (r_type)
3414 	{
3415 	case R_M32R_GOT16_HI_ULO:
3416 	case R_M32R_GOT16_HI_SLO:
3417 	case R_M32R_GOT16_LO:
3418 	case R_M32R_GOT24:
3419 
3420 	  if (h != NULL)
3421 	    h->got.refcount += 1;
3422 	  else
3423 	    {
3424 	      bfd_signed_vma *local_got_refcounts;
3425 
3426 	      /* This is a global offset table entry for a local
3427 		 symbol.  */
3428 	      local_got_refcounts = elf_local_got_refcounts (abfd);
3429 	      if (local_got_refcounts == NULL)
3430 		{
3431 		  bfd_size_type size;
3432 
3433 		  size = symtab_hdr->sh_info;
3434 		  size *= sizeof (bfd_signed_vma);
3435 		  local_got_refcounts = bfd_zalloc (abfd, size);
3436 		  if (local_got_refcounts == NULL)
3437 		    return false;
3438 		  elf_local_got_refcounts (abfd) = local_got_refcounts;
3439 		}
3440 	      local_got_refcounts[r_symndx] += 1;
3441 	    }
3442 	  break;
3443 
3444 	case R_M32R_26_PLTREL:
3445 	  /* This symbol requires a procedure linkage table entry.  We
3446 	     actually build the entry in adjust_dynamic_symbol,
3447 	     because this might be a case of linking PIC code without
3448 	     linking in any dynamic objects, in which case we don't
3449 	     need to generate a procedure linkage table after all.  */
3450 
3451 	  /* If this is a local symbol, we resolve it directly without
3452 	     creating a procedure linkage table entry.  */
3453 	  if (h == NULL)
3454 	    continue;
3455 
3456 	  if (h->forced_local)
3457 	    break;
3458 
3459 	  h->needs_plt = 1;
3460 	  h->plt.refcount += 1;
3461 	  break;
3462 
3463 	case R_M32R_16_RELA:
3464 	case R_M32R_24_RELA:
3465 	case R_M32R_32_RELA:
3466 	case R_M32R_REL32:
3467 	case R_M32R_HI16_ULO_RELA:
3468 	case R_M32R_HI16_SLO_RELA:
3469 	case R_M32R_LO16_RELA:
3470 	case R_M32R_SDA16_RELA:
3471 	case R_M32R_10_PCREL_RELA:
3472 	case R_M32R_18_PCREL_RELA:
3473 	case R_M32R_26_PCREL_RELA:
3474 
3475 	  if (h != NULL && !bfd_link_pic (info))
3476 	    {
3477 	      h->non_got_ref = 1;
3478 	      h->plt.refcount += 1;
3479 	    }
3480 
3481 	  /* If we are creating a shared library, and this is a reloc
3482 	     against a global symbol, or a non PC relative reloc
3483 	     against a local symbol, then we need to copy the reloc
3484 	     into the shared library.  However, if we are linking with
3485 	     -Bsymbolic, we do not need to copy a reloc against a
3486 	     global symbol which is defined in an object we are
3487 	     including in the link (i.e., DEF_REGULAR is set).  At
3488 	     this point we have not seen all the input files, so it is
3489 	     possible that DEF_REGULAR is not set now but will be set
3490 	     later (it is never cleared).  We account for that
3491 	     possibility below by storing information in the
3492 	     dyn_relocs field of the hash table entry. A similar
3493 	     situation occurs when creating shared libraries and symbol
3494 	     visibility changes render the symbol local.
3495 
3496 	     If on the other hand, we are creating an executable, we
3497 	     may need to keep relocations for symbols satisfied by a
3498 	     dynamic library if we manage to avoid copy relocs for the
3499 	     symbol.  */
3500 	  if ((bfd_link_pic (info)
3501 	       && (sec->flags & SEC_ALLOC) != 0
3502 	       && ((   r_type != R_M32R_26_PCREL_RELA
3503 		    && r_type != R_M32R_18_PCREL_RELA
3504 		    && r_type != R_M32R_10_PCREL_RELA
3505 		    && r_type != R_M32R_REL32)
3506 		   || (h != NULL
3507 		       && (! info->symbolic
3508 			   || h->root.type == bfd_link_hash_defweak
3509 			   || !h->def_regular))))
3510 	      || (!bfd_link_pic (info)
3511 		  && (sec->flags & SEC_ALLOC) != 0
3512 		  && h != NULL
3513 		  && (h->root.type == bfd_link_hash_defweak
3514 		      || !h->def_regular)))
3515 	    {
3516 	      struct elf_dyn_relocs *p;
3517 	      struct elf_dyn_relocs **head;
3518 
3519 	      if (dynobj == NULL)
3520 		htab->dynobj = dynobj = abfd;
3521 
3522 	      /* When creating a shared object, we must copy these
3523 		 relocs into the output file.  We create a reloc
3524 		 section in dynobj and make room for the reloc.  */
3525 	      if (sreloc == NULL)
3526 		{
3527 		  sreloc = _bfd_elf_make_dynamic_reloc_section
3528 		    (sec, dynobj, 2, abfd, /*rela?*/ true);
3529 
3530 		  if (sreloc == NULL)
3531 		    return false;
3532 		}
3533 
3534 	      /* If this is a global symbol, we count the number of
3535 		 relocations we need for this symbol.  */
3536 	      if (h != NULL)
3537 		head = &h->dyn_relocs;
3538 	      else
3539 		{
3540 		  /* Track dynamic relocs needed for local syms too.  */
3541 		  asection *s;
3542 		  void *vpp;
3543 		  Elf_Internal_Sym *isym;
3544 
3545 		  isym = bfd_sym_from_r_symndx (&htab->sym_cache,
3546 						abfd, r_symndx);
3547 		  if (isym == NULL)
3548 		    return false;
3549 
3550 		  s = bfd_section_from_elf_index (abfd, isym->st_shndx);
3551 		  if (s == NULL)
3552 		    s = sec;
3553 
3554 		  vpp = &elf_section_data (s)->local_dynrel;
3555 		  head = (struct elf_dyn_relocs **) vpp;
3556 		}
3557 
3558 	      p = *head;
3559 	      if (p == NULL || p->sec != sec)
3560 		{
3561 		  size_t amt = sizeof (*p);
3562 
3563 		  p = bfd_alloc (dynobj, amt);
3564 		  if (p == NULL)
3565 		    return false;
3566 		  p->next = *head;
3567 		  *head = p;
3568 		  p->sec = sec;
3569 		  p->count = 0;
3570 		  p->pc_count = 0;
3571 		}
3572 
3573 	      p->count += 1;
3574 	      if (   ELF32_R_TYPE (rel->r_info) == R_M32R_26_PCREL_RELA
3575 		  || ELF32_R_TYPE (rel->r_info) == R_M32R_18_PCREL_RELA
3576 		  || ELF32_R_TYPE (rel->r_info) == R_M32R_10_PCREL_RELA
3577 		  || ELF32_R_TYPE (rel->r_info) == R_M32R_REL32)
3578 		p->pc_count += 1;
3579 	    }
3580 	  break;
3581 
3582 	/* This relocation describes the C++ object vtable hierarchy.
3583 	   Reconstruct it for later use during GC.  */
3584 	case R_M32R_RELA_GNU_VTINHERIT:
3585 	case R_M32R_GNU_VTINHERIT:
3586 	  if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
3587 	    return false;
3588 	  break;
3589 
3590 	/* This relocation describes which C++ vtable entries are actually
3591 	   used.  Record for later use during GC.  */
3592 	case R_M32R_GNU_VTENTRY:
3593 	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset))
3594 	    return false;
3595 	  break;
3596 	case R_M32R_RELA_GNU_VTENTRY:
3597 	  if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
3598 	    return false;
3599 	  break;
3600 	}
3601     }
3602 
3603   return true;
3604 }
3605 
3606 static const struct bfd_elf_special_section m32r_elf_special_sections[] =
3607 {
3608   { STRING_COMMA_LEN (".sbss"),	 -2, SHT_NOBITS,   SHF_ALLOC + SHF_WRITE },
3609   { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE },
3610   { NULL,		      0,  0, 0,		   0 }
3611 };
3612 
3613 static bool
m32r_elf_section_flags(const Elf_Internal_Shdr * hdr)3614 m32r_elf_section_flags (const Elf_Internal_Shdr *hdr)
3615 {
3616   const char *name = hdr->bfd_section->name;
3617 
3618   if (startswith (name, ".sbss")
3619       || startswith (name, ".sdata"))
3620     hdr->bfd_section->flags |= SEC_SMALL_DATA;
3621 
3622   return true;
3623 }
3624 
3625 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)3626 m32r_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
3627 			   const asection *rel_sec ATTRIBUTE_UNUSED,
3628 			   const Elf_Internal_Rela *rela)
3629 {
3630   switch ((int) ELF32_R_TYPE (rela->r_info))
3631     {
3632     case R_M32R_RELATIVE:  return reloc_class_relative;
3633     case R_M32R_JMP_SLOT:  return reloc_class_plt;
3634     case R_M32R_COPY:      return reloc_class_copy;
3635     default:		   return reloc_class_normal;
3636     }
3637 }
3638 
3639 #define ELF_ARCH		bfd_arch_m32r
3640 #define ELF_TARGET_ID		M32R_ELF_DATA
3641 #define ELF_MACHINE_CODE	EM_M32R
3642 #define ELF_MACHINE_ALT1	EM_CYGNUS_M32R
3643 #define ELF_MAXPAGESIZE		0x1 /* Explicitly requested by Mitsubishi.  */
3644 
3645 #define TARGET_BIG_SYM		m32r_elf32_vec
3646 #define TARGET_BIG_NAME		"elf32-m32r"
3647 #define TARGET_LITTLE_SYM	m32r_elf32_le_vec
3648 #define TARGET_LITTLE_NAME	"elf32-m32rle"
3649 
3650 #define elf_info_to_howto			m32r_info_to_howto
3651 #define elf_info_to_howto_rel			m32r_info_to_howto_rel
3652 #define elf_backend_section_from_bfd_section	_bfd_m32r_elf_section_from_bfd_section
3653 #define elf_backend_symbol_processing		_bfd_m32r_elf_symbol_processing
3654 #define elf_backend_add_symbol_hook		m32r_elf_add_symbol_hook
3655 #define elf_backend_relocate_section		m32r_elf_relocate_section
3656 #define elf_backend_gc_mark_hook		m32r_elf_gc_mark_hook
3657 #define elf_backend_check_relocs		m32r_elf_check_relocs
3658 
3659 #define elf_backend_create_dynamic_sections	m32r_elf_create_dynamic_sections
3660 #define bfd_elf32_bfd_link_hash_table_create	m32r_elf_link_hash_table_create
3661 #define elf_backend_size_dynamic_sections	m32r_elf_size_dynamic_sections
3662 #define elf_backend_omit_section_dynsym		_bfd_elf_omit_section_dynsym_all
3663 #define elf_backend_finish_dynamic_sections	m32r_elf_finish_dynamic_sections
3664 #define elf_backend_adjust_dynamic_symbol	m32r_elf_adjust_dynamic_symbol
3665 #define elf_backend_finish_dynamic_symbol	m32r_elf_finish_dynamic_symbol
3666 #define elf_backend_reloc_type_class		m32r_elf_reloc_type_class
3667 
3668 #define elf_backend_can_gc_sections		1
3669 /*#if !USE_REL
3670 #define elf_backend_rela_normal			1
3671 #endif*/
3672 #define elf_backend_can_refcount 1
3673 #define elf_backend_want_got_plt 1
3674 #define elf_backend_plt_readonly 1
3675 #define elf_backend_want_plt_sym 0
3676 #define elf_backend_got_header_size 12
3677 #define elf_backend_dtrel_excludes_plt	1
3678 
3679 #define elf_backend_may_use_rel_p	1
3680 #ifdef USE_M32R_OLD_RELOC
3681 #define elf_backend_default_use_rela_p	0
3682 #define elf_backend_may_use_rela_p	0
3683 #else
3684 #define elf_backend_default_use_rela_p	1
3685 #define elf_backend_may_use_rela_p	1
3686 #endif
3687 
3688 #define elf_backend_object_p			m32r_elf_object_p
3689 #define elf_backend_final_write_processing	m32r_elf_final_write_processing
3690 #define bfd_elf32_bfd_merge_private_bfd_data	m32r_elf_merge_private_bfd_data
3691 #define bfd_elf32_bfd_set_private_flags		m32r_elf_set_private_flags
3692 #define bfd_elf32_bfd_print_private_bfd_data	m32r_elf_print_private_bfd_data
3693 #define elf_backend_special_sections		m32r_elf_special_sections
3694 #define elf_backend_section_flags		m32r_elf_section_flags
3695 
3696 #define elf_backend_linux_prpsinfo32_ugid16	true
3697 
3698 #include "elf32-target.h"
3699 
3700 #undef	ELF_MAXPAGESIZE
3701 #define ELF_MAXPAGESIZE		0x1000
3702 
3703 #undef	TARGET_BIG_SYM
3704 #define TARGET_BIG_SYM		m32r_elf32_linux_vec
3705 #undef	TARGET_BIG_NAME
3706 #define TARGET_BIG_NAME		"elf32-m32r-linux"
3707 #undef	TARGET_LITTLE_SYM
3708 #define TARGET_LITTLE_SYM	m32r_elf32_linux_le_vec
3709 #undef	TARGET_LITTLE_NAME
3710 #define TARGET_LITTLE_NAME	"elf32-m32rle-linux"
3711 #undef	elf32_bed
3712 #define elf32_bed		elf32_m32r_lin_bed
3713 
3714 #include "elf32-target.h"
3715