1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2020 Free Software Foundation, Inc.
3 Contributed by Andes Technology Corporation.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
28 #include "libiberty.h"
29 #include "elf/nds32.h"
30 #include "opcode/nds32.h"
31 #include "elf32-nds32.h"
32 #include "opcode/cgen.h"
33 #include "../opcodes/nds32-opc.h"
35 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
36 #define OCTETS_PER_BYTE(ABFD, SEC) 1
38 /* Relocation HOWTO functions. */
39 static bfd_reloc_status_type nds32_elf_ignore_reloc
40 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
41 static bfd_reloc_status_type nds32_elf_9_pcrel_reloc
42 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
43 static bfd_reloc_status_type nds32_elf_hi20_reloc
44 (bfd
*, arelent
*, asymbol
*, void *,
45 asection
*, bfd
*, char **);
46 static bfd_reloc_status_type nds32_elf_lo12_reloc
47 (bfd
*, arelent
*, asymbol
*, void *,
48 asection
*, bfd
*, char **);
49 static bfd_reloc_status_type nds32_elf_generic_reloc
50 (bfd
*, arelent
*, asymbol
*, void *,
51 asection
*, bfd
*, char **);
52 static bfd_reloc_status_type nds32_elf_sda15_reloc
53 (bfd
*, arelent
*, asymbol
*, void *,
54 asection
*, bfd
*, char **);
56 /* Helper functions for HOWTO. */
57 static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc
58 (bfd
*, reloc_howto_type
*, asection
*, bfd_byte
*, bfd_vma
,
59 asection
*, bfd_vma
, bfd_vma
);
61 /* Nds32 helper functions. */
62 static bfd_vma calculate_memory_address
63 (bfd
*, Elf_Internal_Rela
*, Elf_Internal_Sym
*, Elf_Internal_Shdr
*);
64 static int nds32_get_section_contents (bfd
*, asection
*,
65 bfd_byte
**, bfd_boolean
);
66 static int nds32_get_local_syms (bfd
*, asection
*ATTRIBUTE_UNUSED
,
68 static bfd_boolean nds32_relax_fp_as_gp
69 (struct bfd_link_info
*link_info
, bfd
*abfd
, asection
*sec
,
70 Elf_Internal_Rela
*internal_relocs
, Elf_Internal_Rela
*irelend
,
71 Elf_Internal_Sym
*isymbuf
);
72 static bfd_boolean nds32_fag_remove_unused_fpbase
73 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*internal_relocs
,
74 Elf_Internal_Rela
*irelend
);
78 MACH_V1
= bfd_mach_n1h
,
79 MACH_V2
= bfd_mach_n1h_v2
,
80 MACH_V3
= bfd_mach_n1h_v3
,
81 MACH_V3M
= bfd_mach_n1h_v3m
84 #define MIN(a, b) ((a) > (b) ? (b) : (a))
85 #define MAX(a, b) ((a) > (b) ? (a) : (b))
87 /* The name of the dynamic interpreter. This is put in the .interp
89 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
91 #define NDS32_GUARD_SEC_P(flags) ((flags) & SEC_ALLOC \
92 && (flags) & SEC_LOAD \
93 && (flags) & SEC_READONLY)
95 /* The nop opcode we use. */
96 #define NDS32_NOP32 0x40000009
97 #define NDS32_NOP16 0x9200
99 /* The size in bytes of an entry in the procedure linkage table. */
100 #define PLT_ENTRY_SIZE 24
101 #define PLT_HEADER_SIZE 24
103 /* The first entry in a procedure linkage table are reserved,
104 and the initial contents are unimportant (we zero them out).
105 Subsequent entries look like this. */
106 #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */
107 #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */
108 #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */
109 #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */
110 #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */
112 /* $ta is change to $r15 (from $r25). */
113 #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */
114 #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */
115 #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */
116 #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */
117 #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */
118 #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */
120 #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */
121 #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */
122 #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */
123 #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */
124 #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */
126 #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */
127 #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */
128 #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */
129 #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */
130 #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */
131 #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */
133 /* These are macros used to get the relocation accurate value. */
134 #define ACCURATE_8BIT_S1 (0x100)
135 #define ACCURATE_U9BIT_S1 (0x400)
136 #define ACCURATE_12BIT_S1 (0x2000)
137 #define ACCURATE_14BIT_S1 (0x4000)
138 #define ACCURATE_19BIT (0x40000)
140 /* These are macros used to get the relocation conservative value. */
141 #define CONSERVATIVE_8BIT_S1 (0x100 - 4)
142 #define CONSERVATIVE_14BIT_S1 (0x4000 - 4)
143 #define CONSERVATIVE_16BIT_S1 (0x10000 - 4)
144 #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4)
145 /* These must be more conservative because the address may be in
146 different segment. */
147 #define CONSERVATIVE_15BIT (0x4000 - 0x1000)
148 #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000)
149 #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000)
150 #define CONSERVATIVE_19BIT (0x40000 - 0x1000)
151 #define CONSERVATIVE_20BIT (0x80000 - 0x1000)
153 /* Size of small data/bss sections, used to calculate SDA_BASE. */
154 static long got_size
= 0;
155 static int is_SDA_BASE_set
= 0;
157 /* Convert ELF-VER in eflags to string for debugging purpose. */
158 static const char *const nds32_elfver_strtab
[] =
165 /* The nds32 linker needs to keep track of the number of relocs that it
166 decides to copy in check_relocs for each symbol. This is so that
167 it can discard PC relative relocs if it doesn't need them when
168 linking with -Bsymbolic. We store the information in a field
169 extending the regular ELF linker hash table. */
171 /* This structure keeps track of the number of PC relative relocs we
172 have copied for a given symbol. */
174 struct elf_nds32_pcrel_relocs_copied
177 struct elf_nds32_pcrel_relocs_copied
*next
;
178 /* A section in dynobj. */
180 /* Number of relocs copied in this section. */
184 enum elf_nds32_tls_type
187 GOT_NORMAL
= (1 << 0),
188 GOT_TLS_LE
= (1 << 1),
189 GOT_TLS_IE
= (1 << 2),
190 GOT_TLS_IEGP
= (1 << 3),
191 GOT_TLS_LD
= (1 << 4),
192 GOT_TLS_GD
= (1 << 5),
193 GOT_TLS_DESC
= (1 << 6),
196 /* Nds32 ELF linker hash entry. */
198 struct elf_nds32_link_hash_entry
200 struct elf_link_hash_entry root
;
202 /* For checking relocation type. */
203 enum elf_nds32_tls_type tls_type
;
208 /* Get the nds32 ELF linker hash table from a link_info structure. */
210 #define FP_BASE_NAME "_FP_BASE_"
211 static int check_start_export_sym
= 0;
213 /* The offset for executable tls relaxation. */
214 #define TP_OFFSET 0x0
223 } elf32_nds32_relax_group_t
;
225 struct elf_nds32_obj_tdata
227 struct elf_obj_tdata root
;
229 /* tls_type for each local got entry. */
230 char *local_got_tls_type
;
232 /* GOTPLT entries for TLS descriptors. */
233 bfd_vma
*local_tlsdesc_gotent
;
235 /* for R_NDS32_RELAX_GROUP handling. */
236 elf32_nds32_relax_group_t relax_group
;
238 unsigned int hdr_size
;
242 #define elf_nds32_tdata(bfd) \
243 ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any)
245 #define elf32_nds32_local_got_tls_type(bfd) \
246 (elf_nds32_tdata (bfd)->local_got_tls_type)
248 #define elf32_nds32_local_gp_offset(bfd) \
249 (elf_nds32_tdata (bfd)->offset_to_gp)
251 #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent))
253 #define elf32_nds32_relax_group_ptr(bfd) \
254 &(elf_nds32_tdata (bfd)->relax_group)
257 nds32_elf_mkobject (bfd
*abfd
)
259 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_nds32_obj_tdata
),
263 /* Relocations used for relocation. */
264 /* Define HOWTO2 (for relocation) and HOWTO3 (for relaxation) to
265 initialize array nds32_elf_howto_table in any order. The benefit
266 is that we can add any new relocations with any numbers and don't
267 need to fill the gap by lots of EMPTY_HOWTO. */
268 #define HOWTO2(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
269 [C] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC)
271 static reloc_howto_type nds32_elf_howto_table
[] =
273 /* This reloc does nothing. */
274 HOWTO2 (R_NDS32_NONE
, /* type */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
278 FALSE
, /* pc_relative */
280 complain_overflow_bitfield
,/* complain_on_overflow */
281 bfd_elf_generic_reloc
, /* special_function */
282 "R_NDS32_NONE", /* name */
283 FALSE
, /* partial_inplace */
286 FALSE
), /* pcrel_offset */
288 /* A 16 bit absolute relocation. */
289 HOWTO2 (R_NDS32_16
, /* type */
291 1, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE
, /* pc_relative */
295 complain_overflow_bitfield
,/* complain_on_overflow */
296 nds32_elf_generic_reloc
,/* special_function */
297 "R_NDS32_16", /* name */
298 FALSE
, /* partial_inplace */
299 0xffff, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE
), /* pcrel_offset */
303 /* A 32 bit absolute relocation. */
304 HOWTO2 (R_NDS32_32
, /* type */
306 2, /* size (0 = byte, 1 = short, 2 = long) */
308 FALSE
, /* pc_relative */
310 complain_overflow_bitfield
,/* complain_on_overflow */
311 nds32_elf_generic_reloc
,/* special_function */
312 "R_NDS32_32", /* name */
313 FALSE
, /* partial_inplace */
314 0xffffffff, /* src_mask */
315 0xffffffff, /* dst_mask */
316 FALSE
), /* pcrel_offset */
318 /* A 20 bit address. */
319 HOWTO2 (R_NDS32_20
, /* type */
321 2, /* size (0 = byte, 1 = short, 2 = long) */
323 FALSE
, /* pc_relative */
325 complain_overflow_unsigned
,/* complain_on_overflow */
326 nds32_elf_generic_reloc
,/* special_function */
327 "R_NDS32_20", /* name */
328 FALSE
, /* partial_inplace */
329 0xfffff, /* src_mask */
330 0xfffff, /* dst_mask */
331 FALSE
), /* pcrel_offset */
333 /* An PC Relative 9-bit relocation, shifted by 2.
334 This reloc is complicated because relocations are relative to pc & -4.
335 i.e. branches in the right insn slot use the address of the left insn
337 /* It's not clear whether this should have partial_inplace set or not.
338 Branch relaxing in the assembler can store the addend in the insn,
339 and if bfd_install_relocation gets called the addend may get added
341 HOWTO2 (R_NDS32_9_PCREL
, /* type */
343 1, /* size (0 = byte, 1 = short, 2 = long) */
345 TRUE
, /* pc_relative */
347 complain_overflow_signed
,/* complain_on_overflow */
348 nds32_elf_9_pcrel_reloc
,/* special_function */
349 "R_NDS32_9_PCREL", /* name */
350 FALSE
, /* partial_inplace */
353 TRUE
), /* pcrel_offset */
355 /* A relative 15 bit relocation, right shifted by 1. */
356 HOWTO2 (R_NDS32_15_PCREL
, /* type */
358 2, /* size (0 = byte, 1 = short, 2 = long) */
360 TRUE
, /* pc_relative */
362 complain_overflow_signed
,/* complain_on_overflow */
363 bfd_elf_generic_reloc
, /* special_function */
364 "R_NDS32_15_PCREL", /* name */
365 FALSE
, /* partial_inplace */
366 0x3fff, /* src_mask */
367 0x3fff, /* dst_mask */
368 TRUE
), /* pcrel_offset */
370 /* A relative 17 bit relocation, right shifted by 1. */
371 HOWTO2 (R_NDS32_17_PCREL
, /* type */
373 2, /* size (0 = byte, 1 = short, 2 = long) */
375 TRUE
, /* pc_relative */
377 complain_overflow_signed
,/* complain_on_overflow */
378 bfd_elf_generic_reloc
, /* special_function */
379 "R_NDS32_17_PCREL", /* name */
380 FALSE
, /* partial_inplace */
381 0xffff, /* src_mask */
382 0xffff, /* dst_mask */
383 TRUE
), /* pcrel_offset */
385 /* A relative 25 bit relocation, right shifted by 1. */
386 /* It's not clear whether this should have partial_inplace set or not.
387 Branch relaxing in the assembler can store the addend in the insn,
388 and if bfd_install_relocation gets called the addend may get added
390 HOWTO2 (R_NDS32_25_PCREL
, /* type */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
394 TRUE
, /* pc_relative */
396 complain_overflow_signed
,/* complain_on_overflow */
397 bfd_elf_generic_reloc
, /* special_function */
398 "R_NDS32_25_PCREL", /* name */
399 FALSE
, /* partial_inplace */
400 0xffffff, /* src_mask */
401 0xffffff, /* dst_mask */
402 TRUE
), /* pcrel_offset */
404 /* High 20 bits of address when lower 12 is or'd in. */
405 HOWTO2 (R_NDS32_HI20
, /* type */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
409 FALSE
, /* pc_relative */
411 complain_overflow_dont
,/* complain_on_overflow */
412 nds32_elf_hi20_reloc
, /* special_function */
413 "R_NDS32_HI20", /* name */
414 FALSE
, /* partial_inplace */
415 0x000fffff, /* src_mask */
416 0x000fffff, /* dst_mask */
417 FALSE
), /* pcrel_offset */
419 /* Lower 12 bits of address. */
420 HOWTO2 (R_NDS32_LO12S3
, /* type */
422 2, /* size (0 = byte, 1 = short, 2 = long) */
424 FALSE
, /* pc_relative */
426 complain_overflow_dont
,/* complain_on_overflow */
427 nds32_elf_lo12_reloc
, /* special_function */
428 "R_NDS32_LO12S3", /* name */
429 FALSE
, /* partial_inplace */
430 0x000001ff, /* src_mask */
431 0x000001ff, /* dst_mask */
432 FALSE
), /* pcrel_offset */
434 /* Lower 12 bits of address. */
435 HOWTO2 (R_NDS32_LO12S2
, /* type */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
439 FALSE
, /* pc_relative */
441 complain_overflow_dont
,/* complain_on_overflow */
442 nds32_elf_lo12_reloc
, /* special_function */
443 "R_NDS32_LO12S2", /* name */
444 FALSE
, /* partial_inplace */
445 0x000003ff, /* src_mask */
446 0x000003ff, /* dst_mask */
447 FALSE
), /* pcrel_offset */
449 /* Lower 12 bits of address. */
450 HOWTO2 (R_NDS32_LO12S1
, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 FALSE
, /* pc_relative */
456 complain_overflow_dont
,/* complain_on_overflow */
457 nds32_elf_lo12_reloc
, /* special_function */
458 "R_NDS32_LO12S1", /* name */
459 FALSE
, /* partial_inplace */
460 0x000007ff, /* src_mask */
461 0x000007ff, /* dst_mask */
462 FALSE
), /* pcrel_offset */
464 /* Lower 12 bits of address. */
465 HOWTO2 (R_NDS32_LO12S0
, /* type */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
469 FALSE
, /* pc_relative */
471 complain_overflow_dont
,/* complain_on_overflow */
472 nds32_elf_lo12_reloc
, /* special_function */
473 "R_NDS32_LO12S0", /* name */
474 FALSE
, /* partial_inplace */
475 0x00000fff, /* src_mask */
476 0x00000fff, /* dst_mask */
477 FALSE
), /* pcrel_offset */
479 /* Small data area 15 bits offset. */
480 HOWTO2 (R_NDS32_SDA15S3
, /* type */
482 2, /* size (0 = byte, 1 = short, 2 = long) */
484 FALSE
, /* pc_relative */
486 complain_overflow_signed
,/* complain_on_overflow */
487 nds32_elf_sda15_reloc
, /* special_function */
488 "R_NDS32_SDA15S3", /* name */
489 FALSE
, /* partial_inplace */
490 0x00007fff, /* src_mask */
491 0x00007fff, /* dst_mask */
492 FALSE
), /* pcrel_offset */
494 /* Small data area 15 bits offset. */
495 HOWTO2 (R_NDS32_SDA15S2
, /* type */
497 2, /* size (0 = byte, 1 = short, 2 = long) */
499 FALSE
, /* pc_relative */
501 complain_overflow_signed
,/* complain_on_overflow */
502 nds32_elf_sda15_reloc
, /* special_function */
503 "R_NDS32_SDA15S2", /* name */
504 FALSE
, /* partial_inplace */
505 0x00007fff, /* src_mask */
506 0x00007fff, /* dst_mask */
507 FALSE
), /* pcrel_offset */
509 /* Small data area 15 bits offset. */
510 HOWTO2 (R_NDS32_SDA15S1
, /* type */
512 2, /* size (0 = byte, 1 = short, 2 = long) */
514 FALSE
, /* pc_relative */
516 complain_overflow_signed
,/* complain_on_overflow */
517 nds32_elf_sda15_reloc
, /* special_function */
518 "R_NDS32_SDA15S1", /* name */
519 FALSE
, /* partial_inplace */
520 0x00007fff, /* src_mask */
521 0x00007fff, /* dst_mask */
522 FALSE
), /* pcrel_offset */
524 /* Small data area 15 bits offset. */
525 HOWTO2 (R_NDS32_SDA15S0
, /* type */
527 2, /* size (0 = byte, 1 = short, 2 = long) */
529 FALSE
, /* pc_relative */
531 complain_overflow_signed
,/* complain_on_overflow */
532 nds32_elf_sda15_reloc
, /* special_function */
533 "R_NDS32_SDA15S0", /* name */
534 FALSE
, /* partial_inplace */
535 0x00007fff, /* src_mask */
536 0x00007fff, /* dst_mask */
537 FALSE
), /* pcrel_offset */
539 /* GNU extension to record C++ vtable hierarchy */
540 HOWTO2 (R_NDS32_GNU_VTINHERIT
,/* type */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
544 FALSE
, /* pc_relative */
546 complain_overflow_dont
,/* complain_on_overflow */
547 NULL
, /* special_function */
548 "R_NDS32_GNU_VTINHERIT",/* name */
549 FALSE
, /* partial_inplace */
552 FALSE
), /* pcrel_offset */
554 /* GNU extension to record C++ vtable member usage */
555 HOWTO2 (R_NDS32_GNU_VTENTRY
, /* type */
557 2, /* size (0 = byte, 1 = short, 2 = long) */
559 FALSE
, /* pc_relative */
561 complain_overflow_dont
,/* complain_on_overflow */
562 _bfd_elf_rel_vtable_reloc_fn
,/* special_function */
563 "R_NDS32_GNU_VTENTRY", /* name */
564 FALSE
, /* partial_inplace */
567 FALSE
), /* pcrel_offset */
569 /* A 16 bit absolute relocation. */
570 HOWTO2 (R_NDS32_16_RELA
, /* type */
572 1, /* size (0 = byte, 1 = short, 2 = long) */
574 FALSE
, /* pc_relative */
576 complain_overflow_bitfield
,/* complain_on_overflow */
577 bfd_elf_generic_reloc
, /* special_function */
578 "R_NDS32_16_RELA", /* name */
579 FALSE
, /* partial_inplace */
580 0xffff, /* src_mask */
581 0xffff, /* dst_mask */
582 FALSE
), /* pcrel_offset */
584 /* A 32 bit absolute relocation. */
585 HOWTO2 (R_NDS32_32_RELA
, /* type */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
589 FALSE
, /* pc_relative */
591 complain_overflow_bitfield
,/* complain_on_overflow */
592 bfd_elf_generic_reloc
, /* special_function */
593 "R_NDS32_32_RELA", /* name */
594 FALSE
, /* partial_inplace */
595 0xffffffff, /* src_mask */
596 0xffffffff, /* dst_mask */
597 FALSE
), /* pcrel_offset */
599 /* A 20 bit address. */
600 HOWTO2 (R_NDS32_20_RELA
, /* type */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
604 FALSE
, /* pc_relative */
606 complain_overflow_signed
,/* complain_on_overflow */
607 bfd_elf_generic_reloc
, /* special_function */
608 "R_NDS32_20_RELA", /* name */
609 FALSE
, /* partial_inplace */
610 0xfffff, /* src_mask */
611 0xfffff, /* dst_mask */
612 FALSE
), /* pcrel_offset */
614 HOWTO2 (R_NDS32_9_PCREL_RELA
, /* type */
616 1, /* size (0 = byte, 1 = short, 2 = long) */
618 TRUE
, /* pc_relative */
620 complain_overflow_signed
,/* complain_on_overflow */
621 bfd_elf_generic_reloc
, /* special_function */
622 "R_NDS32_9_PCREL_RELA",/* name */
623 FALSE
, /* partial_inplace */
626 TRUE
), /* pcrel_offset */
628 /* A relative 15 bit relocation, right shifted by 1. */
629 HOWTO2 (R_NDS32_15_PCREL_RELA
,/* type */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
633 TRUE
, /* pc_relative */
635 complain_overflow_signed
,/* complain_on_overflow */
636 bfd_elf_generic_reloc
, /* special_function */
637 "R_NDS32_15_PCREL_RELA",/* name */
638 FALSE
, /* partial_inplace */
639 0x3fff, /* src_mask */
640 0x3fff, /* dst_mask */
641 TRUE
), /* pcrel_offset */
643 /* A relative 17 bit relocation, right shifted by 1. */
644 HOWTO2 (R_NDS32_17_PCREL_RELA
,/* type */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
648 TRUE
, /* pc_relative */
650 complain_overflow_signed
,/* complain_on_overflow */
651 bfd_elf_generic_reloc
, /* special_function */
652 "R_NDS32_17_PCREL_RELA",/* name */
653 FALSE
, /* partial_inplace */
654 0xffff, /* src_mask */
655 0xffff, /* dst_mask */
656 TRUE
), /* pcrel_offset */
658 /* A relative 25 bit relocation, right shifted by 2. */
659 HOWTO2 (R_NDS32_25_PCREL_RELA
,/* type */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
663 TRUE
, /* pc_relative */
665 complain_overflow_signed
,/* complain_on_overflow */
666 bfd_elf_generic_reloc
, /* special_function */
667 "R_NDS32_25_PCREL_RELA",/* name */
668 FALSE
, /* partial_inplace */
669 0xffffff, /* src_mask */
670 0xffffff, /* dst_mask */
671 TRUE
), /* pcrel_offset */
673 /* High 20 bits of address when lower 16 is or'd in. */
674 HOWTO2 (R_NDS32_HI20_RELA
, /* type */
676 2, /* size (0 = byte, 1 = short, 2 = long) */
678 FALSE
, /* pc_relative */
680 complain_overflow_dont
,/* complain_on_overflow */
681 bfd_elf_generic_reloc
, /* special_function */
682 "R_NDS32_HI20_RELA", /* name */
683 FALSE
, /* partial_inplace */
684 0x000fffff, /* src_mask */
685 0x000fffff, /* dst_mask */
686 FALSE
), /* pcrel_offset */
688 /* Lower 12 bits of address. */
689 HOWTO2 (R_NDS32_LO12S3_RELA
, /* type */
691 2, /* size (0 = byte, 1 = short, 2 = long) */
693 FALSE
, /* pc_relative */
695 complain_overflow_dont
,/* complain_on_overflow */
696 bfd_elf_generic_reloc
, /* special_function */
697 "R_NDS32_LO12S3_RELA", /* name */
698 FALSE
, /* partial_inplace */
699 0x000001ff, /* src_mask */
700 0x000001ff, /* dst_mask */
701 FALSE
), /* pcrel_offset */
703 /* Lower 12 bits of address. */
704 HOWTO2 (R_NDS32_LO12S2_RELA
, /* type */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
708 FALSE
, /* pc_relative */
710 complain_overflow_dont
,/* complain_on_overflow */
711 bfd_elf_generic_reloc
, /* special_function */
712 "R_NDS32_LO12S2_RELA", /* name */
713 FALSE
, /* partial_inplace */
714 0x000003ff, /* src_mask */
715 0x000003ff, /* dst_mask */
716 FALSE
), /* pcrel_offset */
718 /* Lower 12 bits of address. */
719 HOWTO2 (R_NDS32_LO12S1_RELA
, /* type */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
723 FALSE
, /* pc_relative */
725 complain_overflow_dont
,/* complain_on_overflow */
726 bfd_elf_generic_reloc
, /* special_function */
727 "R_NDS32_LO12S1_RELA", /* name */
728 FALSE
, /* partial_inplace */
729 0x000007ff, /* src_mask */
730 0x000007ff, /* dst_mask */
731 FALSE
), /* pcrel_offset */
733 /* Lower 12 bits of address. */
734 HOWTO2 (R_NDS32_LO12S0_RELA
, /* type */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
738 FALSE
, /* pc_relative */
740 complain_overflow_dont
,/* complain_on_overflow */
741 bfd_elf_generic_reloc
, /* special_function */
742 "R_NDS32_LO12S0_RELA", /* name */
743 FALSE
, /* partial_inplace */
744 0x00000fff, /* src_mask */
745 0x00000fff, /* dst_mask */
746 FALSE
), /* pcrel_offset */
748 /* Small data area 15 bits offset. */
749 HOWTO2 (R_NDS32_SDA15S3_RELA
, /* type */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
753 FALSE
, /* pc_relative */
755 complain_overflow_signed
,/* complain_on_overflow */
756 bfd_elf_generic_reloc
, /* special_function */
757 "R_NDS32_SDA15S3_RELA",/* name */
758 FALSE
, /* partial_inplace */
759 0x00007fff, /* src_mask */
760 0x00007fff, /* dst_mask */
761 FALSE
), /* pcrel_offset */
763 /* Small data area 15 bits offset. */
764 HOWTO2 (R_NDS32_SDA15S2_RELA
, /* type */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
768 FALSE
, /* pc_relative */
770 complain_overflow_signed
,/* complain_on_overflow */
771 bfd_elf_generic_reloc
, /* special_function */
772 "R_NDS32_SDA15S2_RELA",/* name */
773 FALSE
, /* partial_inplace */
774 0x00007fff, /* src_mask */
775 0x00007fff, /* dst_mask */
776 FALSE
), /* pcrel_offset */
778 HOWTO2 (R_NDS32_SDA15S1_RELA
, /* type */
780 2, /* size (0 = byte, 1 = short, 2 = long) */
782 FALSE
, /* pc_relative */
784 complain_overflow_signed
,/* complain_on_overflow */
785 bfd_elf_generic_reloc
, /* special_function */
786 "R_NDS32_SDA15S1_RELA",/* name */
787 FALSE
, /* partial_inplace */
788 0x00007fff, /* src_mask */
789 0x00007fff, /* dst_mask */
790 FALSE
), /* pcrel_offset */
792 HOWTO2 (R_NDS32_SDA15S0_RELA
, /* type */
794 2, /* size (0 = byte, 1 = short, 2 = long) */
796 FALSE
, /* pc_relative */
798 complain_overflow_signed
,/* complain_on_overflow */
799 bfd_elf_generic_reloc
, /* special_function */
800 "R_NDS32_SDA15S0_RELA",/* name */
801 FALSE
, /* partial_inplace */
802 0x00007fff, /* src_mask */
803 0x00007fff, /* dst_mask */
804 FALSE
), /* pcrel_offset */
806 /* GNU extension to record C++ vtable hierarchy */
807 HOWTO2 (R_NDS32_RELA_GNU_VTINHERIT
,/* type */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
811 FALSE
, /* pc_relative */
813 complain_overflow_dont
,/* complain_on_overflow */
814 NULL
, /* special_function */
815 "R_NDS32_RELA_GNU_VTINHERIT",/* name */
816 FALSE
, /* partial_inplace */
819 FALSE
), /* pcrel_offset */
821 /* GNU extension to record C++ vtable member usage */
822 HOWTO2 (R_NDS32_RELA_GNU_VTENTRY
,/* type */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
826 FALSE
, /* pc_relative */
828 complain_overflow_dont
,/* complain_on_overflow */
829 _bfd_elf_rel_vtable_reloc_fn
,/* special_function */
830 "R_NDS32_RELA_GNU_VTENTRY",/* name */
831 FALSE
, /* partial_inplace */
834 FALSE
), /* pcrel_offset */
836 /* Like R_NDS32_20, but referring to the GOT table entry for
838 HOWTO2 (R_NDS32_GOT20
, /* type */
840 2, /* size (0 = byte, 1 = short, 2 = long) */
842 FALSE
, /* pc_relative */
844 complain_overflow_signed
,/* complain_on_overflow */
845 bfd_elf_generic_reloc
, /* special_function */
846 "R_NDS32_GOT20", /* name */
847 FALSE
, /* partial_inplace */
848 0xfffff, /* src_mask */
849 0xfffff, /* dst_mask */
850 FALSE
), /* pcrel_offset */
852 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
853 entry for the symbol. */
854 HOWTO2 (R_NDS32_25_PLTREL
, /* type */
856 2, /* size (0 = byte, 1 = short, 2 = long) */
858 TRUE
, /* pc_relative */
860 complain_overflow_signed
,/* complain_on_overflow */
861 bfd_elf_generic_reloc
, /* special_function */
862 "R_NDS32_25_PLTREL", /* name */
863 FALSE
, /* partial_inplace */
864 0xffffff, /* src_mask */
865 0xffffff, /* dst_mask */
866 TRUE
), /* pcrel_offset */
868 /* This is used only by the dynamic linker. The symbol should exist
869 both in the object being run and in some shared library. The
870 dynamic linker copies the data addressed by the symbol from the
871 shared library into the object, because the object being
872 run has to have the data at some particular address. */
873 HOWTO2 (R_NDS32_COPY
, /* type */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
877 FALSE
, /* pc_relative */
879 complain_overflow_bitfield
,/* complain_on_overflow */
880 bfd_elf_generic_reloc
, /* special_function */
881 "R_NDS32_COPY", /* name */
882 FALSE
, /* partial_inplace */
883 0xffffffff, /* src_mask */
884 0xffffffff, /* dst_mask */
885 FALSE
), /* pcrel_offset */
887 /* Like R_NDS32_20, but used when setting global offset table
889 HOWTO2 (R_NDS32_GLOB_DAT
, /* type */
891 2, /* size (0 = byte, 1 = short, 2 = long) */
893 FALSE
, /* pc_relative */
895 complain_overflow_bitfield
,/* complain_on_overflow */
896 bfd_elf_generic_reloc
, /* special_function */
897 "R_NDS32_GLOB_DAT", /* name */
898 FALSE
, /* partial_inplace */
899 0xffffffff, /* src_mask */
900 0xffffffff, /* dst_mask */
901 FALSE
), /* pcrel_offset */
903 /* Marks a procedure linkage table entry for a symbol. */
904 HOWTO2 (R_NDS32_JMP_SLOT
, /* type */
906 2, /* size (0 = byte, 1 = short, 2 = long) */
908 FALSE
, /* pc_relative */
910 complain_overflow_bitfield
,/* complain_on_overflow */
911 bfd_elf_generic_reloc
, /* special_function */
912 "R_NDS32_JMP_SLOT", /* name */
913 FALSE
, /* partial_inplace */
914 0xffffffff, /* src_mask */
915 0xffffffff, /* dst_mask */
916 FALSE
), /* pcrel_offset */
918 /* Used only by the dynamic linker. When the object is run, this
919 longword is set to the load address of the object, plus the
921 HOWTO2 (R_NDS32_RELATIVE
, /* type */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
925 FALSE
, /* pc_relative */
927 complain_overflow_bitfield
,/* complain_on_overflow */
928 bfd_elf_generic_reloc
, /* special_function */
929 "R_NDS32_RELATIVE", /* name */
930 FALSE
, /* partial_inplace */
931 0xffffffff, /* src_mask */
932 0xffffffff, /* dst_mask */
933 FALSE
), /* pcrel_offset */
935 HOWTO2 (R_NDS32_GOTOFF
, /* type */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
939 FALSE
, /* pc_relative */
941 complain_overflow_signed
,/* complain_on_overflow */
942 bfd_elf_generic_reloc
, /* special_function */
943 "R_NDS32_GOTOFF", /* name */
944 FALSE
, /* partial_inplace */
945 0xfffff, /* src_mask */
946 0xfffff, /* dst_mask */
947 FALSE
), /* pcrel_offset */
949 /* An PC Relative 20-bit relocation used when setting PIC offset
951 HOWTO2 (R_NDS32_GOTPC20
, /* type */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
955 TRUE
, /* pc_relative */
957 complain_overflow_signed
,/* complain_on_overflow */
958 bfd_elf_generic_reloc
, /* special_function */
959 "R_NDS32_GOTPC20", /* name */
960 FALSE
, /* partial_inplace */
961 0xfffff, /* src_mask */
962 0xfffff, /* dst_mask */
963 TRUE
), /* pcrel_offset */
965 /* Like R_NDS32_HI20, but referring to the GOT table entry for
967 HOWTO2 (R_NDS32_GOT_HI20
, /* type */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE
, /* pc_relative */
973 complain_overflow_dont
,/* complain_on_overflow */
974 bfd_elf_generic_reloc
, /* special_function */
975 "R_NDS32_GOT_HI20", /* name */
976 FALSE
, /* partial_inplace */
977 0x000fffff, /* src_mask */
978 0x000fffff, /* dst_mask */
979 FALSE
), /* pcrel_offset */
980 HOWTO2 (R_NDS32_GOT_LO12
, /* type */
982 2, /* size (0 = byte, 1 = short, 2 = long) */
984 FALSE
, /* pc_relative */
986 complain_overflow_dont
,/* complain_on_overflow */
987 bfd_elf_generic_reloc
, /* special_function */
988 "R_NDS32_GOT_LO12", /* name */
989 FALSE
, /* partial_inplace */
990 0x00000fff, /* src_mask */
991 0x00000fff, /* dst_mask */
992 FALSE
), /* pcrel_offset */
994 /* An PC Relative relocation used when setting PIC offset table register.
995 Like R_NDS32_HI20, but referring to the GOT table entry for
997 HOWTO2 (R_NDS32_GOTPC_HI20
, /* type */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1001 FALSE
, /* pc_relative */
1003 complain_overflow_dont
,/* complain_on_overflow */
1004 bfd_elf_generic_reloc
, /* special_function */
1005 "R_NDS32_GOTPC_HI20", /* name */
1006 FALSE
, /* partial_inplace */
1007 0x000fffff, /* src_mask */
1008 0x000fffff, /* dst_mask */
1009 TRUE
), /* pcrel_offset */
1010 HOWTO2 (R_NDS32_GOTPC_LO12
, /* type */
1012 2, /* size (0 = byte, 1 = short, 2 = long) */
1014 FALSE
, /* pc_relative */
1016 complain_overflow_dont
,/* complain_on_overflow */
1017 bfd_elf_generic_reloc
, /* special_function */
1018 "R_NDS32_GOTPC_LO12", /* name */
1019 FALSE
, /* partial_inplace */
1020 0x00000fff, /* src_mask */
1021 0x00000fff, /* dst_mask */
1022 TRUE
), /* pcrel_offset */
1024 HOWTO2 (R_NDS32_GOTOFF_HI20
, /* type */
1025 12, /* rightshift */
1026 2, /* size (0 = byte, 1 = short, 2 = long) */
1028 FALSE
, /* pc_relative */
1030 complain_overflow_dont
,/* complain_on_overflow */
1031 bfd_elf_generic_reloc
, /* special_function */
1032 "R_NDS32_GOTOFF_HI20", /* name */
1033 FALSE
, /* partial_inplace */
1034 0x000fffff, /* src_mask */
1035 0x000fffff, /* dst_mask */
1036 FALSE
), /* pcrel_offset */
1037 HOWTO2 (R_NDS32_GOTOFF_LO12
, /* type */
1039 2, /* size (0 = byte, 1 = short, 2 = long) */
1041 FALSE
, /* pc_relative */
1043 complain_overflow_dont
,/* complain_on_overflow */
1044 bfd_elf_generic_reloc
, /* special_function */
1045 "R_NDS32_GOTOFF_LO12", /* name */
1046 FALSE
, /* partial_inplace */
1047 0x00000fff, /* src_mask */
1048 0x00000fff, /* dst_mask */
1049 FALSE
), /* pcrel_offset */
1051 /* Alignment hint for relaxable instruction. This is used with
1052 R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2
1053 in order to make next label aligned on word boundary. */
1054 HOWTO2 (R_NDS32_INSN16
, /* type */
1056 2, /* size (0 = byte, 1 = short, 2 = long) */
1058 FALSE
, /* pc_relative */
1060 complain_overflow_dont
,/* complain_on_overflow */
1061 nds32_elf_ignore_reloc
,/* special_function */
1062 "R_NDS32_INSN16", /* name */
1063 FALSE
, /* partial_inplace */
1064 0x00000fff, /* src_mask */
1065 0x00000fff, /* dst_mask */
1066 FALSE
), /* pcrel_offset */
1068 /* Alignment hint for label. */
1069 HOWTO2 (R_NDS32_LABEL
, /* type */
1071 2, /* size (0 = byte, 1 = short, 2 = long) */
1073 FALSE
, /* pc_relative */
1075 complain_overflow_dont
,/* complain_on_overflow */
1076 nds32_elf_ignore_reloc
,/* special_function */
1077 "R_NDS32_LABEL", /* name */
1078 FALSE
, /* partial_inplace */
1079 0xffffffff, /* src_mask */
1080 0xffffffff, /* dst_mask */
1081 FALSE
), /* pcrel_offset */
1083 /* Relax hint for unconditional call sequence */
1084 HOWTO2 (R_NDS32_LONGCALL1
, /* type */
1086 2, /* size (0 = byte, 1 = short, 2 = long) */
1088 FALSE
, /* pc_relative */
1090 complain_overflow_dont
,/* complain_on_overflow */
1091 nds32_elf_ignore_reloc
,/* special_function */
1092 "R_NDS32_LONGCALL1", /* name */
1093 FALSE
, /* partial_inplace */
1094 0xffffffff, /* src_mask */
1095 0xffffffff, /* dst_mask */
1096 FALSE
), /* pcrel_offset */
1098 /* Relax hint for conditional call sequence. */
1099 HOWTO2 (R_NDS32_LONGCALL2
, /* type */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 FALSE
, /* pc_relative */
1105 complain_overflow_dont
,/* complain_on_overflow */
1106 nds32_elf_ignore_reloc
,/* special_function */
1107 "R_NDS32_LONGCALL2", /* name */
1108 FALSE
, /* partial_inplace */
1109 0xffffffff, /* src_mask */
1110 0xffffffff, /* dst_mask */
1111 FALSE
), /* pcrel_offset */
1113 /* Relax hint for conditional call sequence. */
1114 HOWTO2 (R_NDS32_LONGCALL3
, /* type */
1116 2, /* size (0 = byte, 1 = short, 2 = long) */
1118 FALSE
, /* pc_relative */
1120 complain_overflow_dont
,/* complain_on_overflow */
1121 nds32_elf_ignore_reloc
,/* special_function */
1122 "R_NDS32_LONGCALL3", /* name */
1123 FALSE
, /* partial_inplace */
1124 0xffffffff, /* src_mask */
1125 0xffffffff, /* dst_mask */
1126 FALSE
), /* pcrel_offset */
1128 /* Relax hint for unconditional branch sequence. */
1129 HOWTO2 (R_NDS32_LONGJUMP1
, /* type */
1131 2, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE
, /* pc_relative */
1135 complain_overflow_dont
,/* complain_on_overflow */
1136 nds32_elf_ignore_reloc
,/* special_function */
1137 "R_NDS32_LONGJUMP1", /* name */
1138 FALSE
, /* partial_inplace */
1139 0xffffffff, /* src_mask */
1140 0xffffffff, /* dst_mask */
1141 FALSE
), /* pcrel_offset */
1143 /* Relax hint for conditional branch sequence. */
1144 HOWTO2 (R_NDS32_LONGJUMP2
, /* type */
1146 2, /* size (0 = byte, 1 = short, 2 = long) */
1148 FALSE
, /* pc_relative */
1150 complain_overflow_dont
,/* complain_on_overflow */
1151 nds32_elf_ignore_reloc
,/* special_function */
1152 "R_NDS32_LONGJUMP2", /* name */
1153 FALSE
, /* partial_inplace */
1154 0xffffffff, /* src_mask */
1155 0xffffffff, /* dst_mask */
1156 FALSE
), /* pcrel_offset */
1158 /* Relax hint for conditional branch sequence. */
1159 HOWTO2 (R_NDS32_LONGJUMP3
, /* type */
1161 2, /* size (0 = byte, 1 = short, 2 = long) */
1163 FALSE
, /* pc_relative */
1165 complain_overflow_dont
,/* complain_on_overflow */
1166 nds32_elf_ignore_reloc
,/* special_function */
1167 "R_NDS32_LONGJUMP3", /* name */
1168 FALSE
, /* partial_inplace */
1169 0xffffffff, /* src_mask */
1170 0xffffffff, /* dst_mask */
1171 FALSE
), /* pcrel_offset */
1173 /* Relax hint for load/store sequence. */
1174 HOWTO2 (R_NDS32_LOADSTORE
, /* type */
1176 2, /* size (0 = byte, 1 = short, 2 = long) */
1178 FALSE
, /* pc_relative */
1180 complain_overflow_dont
,/* complain_on_overflow */
1181 nds32_elf_ignore_reloc
,/* special_function */
1182 "R_NDS32_LOADSTORE", /* name */
1183 FALSE
, /* partial_inplace */
1184 0xffffffff, /* src_mask */
1185 0xffffffff, /* dst_mask */
1186 FALSE
), /* pcrel_offset */
1188 /* Relax hint for load/store sequence. */
1189 HOWTO2 (R_NDS32_9_FIXED_RELA
, /* type */
1191 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 FALSE
, /* pc_relative */
1195 complain_overflow_dont
,/* complain_on_overflow */
1196 nds32_elf_ignore_reloc
,/* special_function */
1197 "R_NDS32_9_FIXED_RELA",/* name */
1198 FALSE
, /* partial_inplace */
1199 0x000000ff, /* src_mask */
1200 0x000000ff, /* dst_mask */
1201 FALSE
), /* pcrel_offset */
1203 /* Relax hint for load/store sequence. */
1204 HOWTO2 (R_NDS32_15_FIXED_RELA
,/* type */
1206 2, /* size (0 = byte, 1 = short, 2 = long) */
1208 FALSE
, /* pc_relative */
1210 complain_overflow_dont
,/* complain_on_overflow */
1211 nds32_elf_ignore_reloc
,/* special_function */
1212 "R_NDS32_15_FIXED_RELA",/* name */
1213 FALSE
, /* partial_inplace */
1214 0x00003fff, /* src_mask */
1215 0x00003fff, /* dst_mask */
1216 FALSE
), /* pcrel_offset */
1218 /* Relax hint for load/store sequence. */
1219 HOWTO2 (R_NDS32_17_FIXED_RELA
,/* type */
1221 2, /* size (0 = byte, 1 = short, 2 = long) */
1223 FALSE
, /* pc_relative */
1225 complain_overflow_dont
,/* complain_on_overflow */
1226 nds32_elf_ignore_reloc
,/* special_function */
1227 "R_NDS32_17_FIXED_RELA",/* name */
1228 FALSE
, /* partial_inplace */
1229 0x0000ffff, /* src_mask */
1230 0x0000ffff, /* dst_mask */
1231 FALSE
), /* pcrel_offset */
1233 /* Relax hint for load/store sequence. */
1234 HOWTO2 (R_NDS32_25_FIXED_RELA
,/* type */
1236 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 FALSE
, /* pc_relative */
1240 complain_overflow_dont
,/* complain_on_overflow */
1241 nds32_elf_ignore_reloc
,/* special_function */
1242 "R_NDS32_25_FIXED_RELA",/* name */
1243 FALSE
, /* partial_inplace */
1244 0x00ffffff, /* src_mask */
1245 0x00ffffff, /* dst_mask */
1246 FALSE
), /* pcrel_offset */
1248 /* High 20 bits of PLT symbol offset relative to PC. */
1249 HOWTO2 (R_NDS32_PLTREL_HI20
, /* type */
1250 12, /* rightshift */
1251 2, /* size (0 = byte, 1 = short, 2 = long) */
1253 FALSE
, /* pc_relative */
1255 complain_overflow_dont
,/* complain_on_overflow */
1256 bfd_elf_generic_reloc
, /* special_function */
1257 "R_NDS32_PLTREL_HI20", /* name */
1258 FALSE
, /* partial_inplace */
1259 0x000fffff, /* src_mask */
1260 0x000fffff, /* dst_mask */
1261 FALSE
), /* pcrel_offset */
1263 /* Low 12 bits of PLT symbol offset relative to PC. */
1264 HOWTO2 (R_NDS32_PLTREL_LO12
, /* type */
1266 2, /* size (0 = byte, 1 = short, 2 = long) */
1268 FALSE
, /* pc_relative */
1270 complain_overflow_dont
,/* complain_on_overflow */
1271 bfd_elf_generic_reloc
, /* special_function */
1272 "R_NDS32_PLTREL_LO12", /* name */
1273 FALSE
, /* partial_inplace */
1274 0x00000fff, /* src_mask */
1275 0x00000fff, /* dst_mask */
1276 FALSE
), /* pcrel_offset */
1278 /* High 20 bits of PLT symbol offset relative to GOT (GP). */
1279 HOWTO2 (R_NDS32_PLT_GOTREL_HI20
, /* type */
1280 12, /* rightshift */
1281 2, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE
, /* pc_relative */
1285 complain_overflow_dont
,/* complain_on_overflow */
1286 bfd_elf_generic_reloc
, /* special_function */
1287 "R_NDS32_PLT_GOTREL_HI20",/* name */
1288 FALSE
, /* partial_inplace */
1289 0x000fffff, /* src_mask */
1290 0x000fffff, /* dst_mask */
1291 FALSE
), /* pcrel_offset */
1293 /* Low 12 bits of PLT symbol offset relative to GOT (GP). */
1294 HOWTO2 (R_NDS32_PLT_GOTREL_LO12
,/* type */
1296 2, /* size (0 = byte, 1 = short, 2 = long) */
1298 FALSE
, /* pc_relative */
1300 complain_overflow_dont
,/* complain_on_overflow */
1301 bfd_elf_generic_reloc
, /* special_function */
1302 "R_NDS32_PLT_GOTREL_LO12",/* name */
1303 FALSE
, /* partial_inplace */
1304 0x00000fff, /* src_mask */
1305 0x00000fff, /* dst_mask */
1306 FALSE
), /* pcrel_offset */
1308 /* Small data area 12 bits offset. */
1309 HOWTO2 (R_NDS32_SDA12S2_DP_RELA
,/* type */
1311 2, /* size (0 = byte, 1 = short, 2 = long) */
1313 FALSE
, /* pc_relative */
1315 complain_overflow_signed
,/* complain_on_overflow */
1316 bfd_elf_generic_reloc
, /* special_function */
1317 "R_NDS32_SDA12S2_DP_RELA",/* name */
1318 FALSE
, /* partial_inplace */
1319 0x00000fff, /* src_mask */
1320 0x00000fff, /* dst_mask */
1321 FALSE
), /* pcrel_offset */
1323 /* Small data area 12 bits offset. */
1324 HOWTO2 (R_NDS32_SDA12S2_SP_RELA
,/* type */
1326 2, /* size (0 = byte, 1 = short, 2 = long) */
1328 FALSE
, /* pc_relative */
1330 complain_overflow_signed
,/* complain_on_overflow */
1331 bfd_elf_generic_reloc
, /* special_function */
1332 "R_NDS32_SDA12S2_SP_RELA",/* name */
1333 FALSE
, /* partial_inplace */
1334 0x00000fff, /* src_mask */
1335 0x00000fff, /* dst_mask */
1336 FALSE
), /* pcrel_offset */
1337 /* Lower 12 bits of address. */
1339 HOWTO2 (R_NDS32_LO12S2_DP_RELA
, /* type */
1341 2, /* size (0 = byte, 1 = short, 2 = long) */
1343 FALSE
, /* pc_relative */
1345 complain_overflow_dont
,/* complain_on_overflow */
1346 bfd_elf_generic_reloc
, /* special_function */
1347 "R_NDS32_LO12S2_DP_RELA",/* name */
1348 FALSE
, /* partial_inplace */
1349 0x000003ff, /* src_mask */
1350 0x000003ff, /* dst_mask */
1351 FALSE
), /* pcrel_offset */
1353 /* Lower 12 bits of address. */
1354 HOWTO2 (R_NDS32_LO12S2_SP_RELA
,/* type */
1356 2, /* size (0 = byte, 1 = short, 2 = long) */
1358 FALSE
, /* pc_relative */
1360 complain_overflow_dont
,/* complain_on_overflow */
1361 bfd_elf_generic_reloc
, /* special_function */
1362 "R_NDS32_LO12S2_SP_RELA",/* name */
1363 FALSE
, /* partial_inplace */
1364 0x000003ff, /* src_mask */
1365 0x000003ff, /* dst_mask */
1366 FALSE
), /* pcrel_offset */
1367 /* Lower 12 bits of address. Special identity for or case. */
1368 HOWTO2 (R_NDS32_LO12S0_ORI_RELA
,/* type */
1370 2, /* size (0 = byte, 1 = short, 2 = long) */
1372 FALSE
, /* pc_relative */
1374 complain_overflow_dont
,/* complain_on_overflow */
1375 bfd_elf_generic_reloc
, /* special_function */
1376 "R_NDS32_LO12S0_ORI_RELA",/* name */
1377 FALSE
, /* partial_inplace */
1378 0x00000fff, /* src_mask */
1379 0x00000fff, /* dst_mask */
1380 FALSE
), /* pcrel_offset */
1381 /* Small data area 19 bits offset. */
1382 HOWTO2 (R_NDS32_SDA16S3_RELA
, /* type */
1384 2, /* size (0 = byte, 1 = short, 2 = long) */
1386 FALSE
, /* pc_relative */
1388 complain_overflow_signed
,/* complain_on_overflow */
1389 bfd_elf_generic_reloc
, /* special_function */
1390 "R_NDS32_SDA16S3_RELA",/* name */
1391 FALSE
, /* partial_inplace */
1392 0x0000ffff, /* src_mask */
1393 0x0000ffff, /* dst_mask */
1394 FALSE
), /* pcrel_offset */
1396 /* Small data area 15 bits offset. */
1397 HOWTO2 (R_NDS32_SDA17S2_RELA
, /* type */
1399 2, /* size (0 = byte, 1 = short, 2 = long) */
1401 FALSE
, /* pc_relative */
1403 complain_overflow_signed
,/* complain_on_overflow */
1404 bfd_elf_generic_reloc
, /* special_function */
1405 "R_NDS32_SDA17S2_RELA",/* name */
1406 FALSE
, /* partial_inplace */
1407 0x0001ffff, /* src_mask */
1408 0x0001ffff, /* dst_mask */
1409 FALSE
), /* pcrel_offset */
1411 HOWTO2 (R_NDS32_SDA18S1_RELA
, /* type */
1413 2, /* size (0 = byte, 1 = short, 2 = long) */
1415 FALSE
, /* pc_relative */
1417 complain_overflow_signed
,/* complain_on_overflow */
1418 bfd_elf_generic_reloc
, /* special_function */
1419 "R_NDS32_SDA18S1_RELA",/* name */
1420 FALSE
, /* partial_inplace */
1421 0x0003ffff, /* src_mask */
1422 0x0003ffff, /* dst_mask */
1423 FALSE
), /* pcrel_offset */
1425 HOWTO2 (R_NDS32_SDA19S0_RELA
, /* type */
1427 2, /* size (0 = byte, 1 = short, 2 = long) */
1429 FALSE
, /* pc_relative */
1431 complain_overflow_signed
,/* complain_on_overflow */
1432 bfd_elf_generic_reloc
, /* special_function */
1433 "R_NDS32_SDA19S0_RELA",/* name */
1434 FALSE
, /* partial_inplace */
1435 0x0007ffff, /* src_mask */
1436 0x0007ffff, /* dst_mask */
1437 FALSE
), /* pcrel_offset */
1438 HOWTO2 (R_NDS32_DWARF2_OP1_RELA
,/* type */
1440 0, /* size (0 = byte, 1 = short, 2 = long) */
1442 FALSE
, /* pc_relative */
1444 complain_overflow_dont
,/* complain_on_overflow */
1445 nds32_elf_ignore_reloc
,/* special_function */
1446 "R_NDS32_DWARF2_OP1_RELA",/* name */
1447 FALSE
, /* partial_inplace */
1448 0xff, /* src_mask */
1449 0xff, /* dst_mask */
1450 FALSE
), /* pcrel_offset */
1451 HOWTO2 (R_NDS32_DWARF2_OP2_RELA
,/* type */
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 FALSE
, /* pc_relative */
1457 complain_overflow_dont
,/* complain_on_overflow */
1458 nds32_elf_ignore_reloc
,/* special_function */
1459 "R_NDS32_DWARF2_OP2_RELA",/* name */
1460 FALSE
, /* partial_inplace */
1461 0xffff, /* src_mask */
1462 0xffff, /* dst_mask */
1463 FALSE
), /* pcrel_offset */
1464 HOWTO2 (R_NDS32_DWARF2_LEB_RELA
,/* type */
1466 2, /* size (0 = byte, 1 = short, 2 = long) */
1468 FALSE
, /* pc_relative */
1470 complain_overflow_dont
,/* complain_on_overflow */
1471 nds32_elf_ignore_reloc
,/* special_function */
1472 "R_NDS32_DWARF2_LEB_RELA",/* name */
1473 FALSE
, /* partial_inplace */
1474 0xffffffff, /* src_mask */
1475 0xffffffff, /* dst_mask */
1476 FALSE
), /* pcrel_offset */
1477 HOWTO2 (R_NDS32_UPDATE_TA_RELA
,/* type */
1479 1, /* size (0 = byte, 1 = short, 2 = long) */
1481 FALSE
, /* pc_relative */
1483 complain_overflow_dont
,/* complain_on_overflow */
1484 nds32_elf_ignore_reloc
,/* special_function */
1485 "R_NDS32_UPDATE_TA_RELA",/* name */
1486 FALSE
, /* partial_inplace */
1487 0xffff, /* src_mask */
1488 0xffff, /* dst_mask */
1489 FALSE
), /* pcrel_offset */
1490 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
1491 entry for the symbol. */
1492 HOWTO2 (R_NDS32_9_PLTREL
, /* type */
1494 1, /* size (0 = byte, 1 = short, 2 = long) */
1496 TRUE
, /* pc_relative */
1498 complain_overflow_signed
,/* complain_on_overflow */
1499 bfd_elf_generic_reloc
, /* special_function */
1500 "R_NDS32_9_PLTREL", /* name */
1501 FALSE
, /* partial_inplace */
1502 0xff, /* src_mask */
1503 0xff, /* dst_mask */
1504 TRUE
), /* pcrel_offset */
1505 /* Low 20 bits of PLT symbol offset relative to GOT (GP). */
1506 HOWTO2 (R_NDS32_PLT_GOTREL_LO20
,/* type */
1508 2, /* size (0 = byte, 1 = short, 2 = long) */
1510 FALSE
, /* pc_relative */
1512 complain_overflow_dont
,/* complain_on_overflow */
1513 bfd_elf_generic_reloc
, /* special_function */
1514 "R_NDS32_PLT_GOTREL_LO20",/* name */
1515 FALSE
, /* partial_inplace */
1516 0x000fffff, /* src_mask */
1517 0x000fffff, /* dst_mask */
1518 FALSE
), /* pcrel_offset */
1519 /* low 15 bits of PLT symbol offset relative to GOT (GP) */
1520 HOWTO2 (R_NDS32_PLT_GOTREL_LO15
,/* type */
1522 2, /* size (0 = byte, 1 = short, 2 = long) */
1524 FALSE
, /* pc_relative */
1526 complain_overflow_dont
,/* complain_on_overflow */
1527 bfd_elf_generic_reloc
, /* special_function */
1528 "R_NDS32_PLT_GOTREL_LO15",/* name */
1529 FALSE
, /* partial_inplace */
1530 0x00007fff, /* src_mask */
1531 0x00007fff, /* dst_mask */
1532 FALSE
), /* pcrel_offset */
1533 /* Low 19 bits of PLT symbol offset relative to GOT (GP). */
1534 HOWTO2 (R_NDS32_PLT_GOTREL_LO19
,/* type */
1536 2, /* size (0 = byte, 1 = short, 2 = long) */
1538 FALSE
, /* pc_relative */
1540 complain_overflow_dont
,/* complain_on_overflow */
1541 bfd_elf_generic_reloc
, /* special_function */
1542 "R_NDS32_PLT_GOTREL_LO19",/* name */
1543 FALSE
, /* partial_inplace */
1544 0x0007ffff, /* src_mask */
1545 0x0007ffff, /* dst_mask */
1546 FALSE
), /* pcrel_offset */
1547 HOWTO2 (R_NDS32_GOT_LO15
, /* type */
1549 2, /* size (0 = byte, 1 = short, 2 = long) */
1551 FALSE
, /* pc_relative */
1553 complain_overflow_dont
,/* complain_on_overflow */
1554 bfd_elf_generic_reloc
, /* special_function */
1555 "R_NDS32_GOT_LO15", /* name */
1556 FALSE
, /* partial_inplace */
1557 0x00007fff, /* src_mask */
1558 0x00007fff, /* dst_mask */
1559 FALSE
), /* pcrel_offset */
1560 HOWTO2 (R_NDS32_GOT_LO19
, /* type */
1562 2, /* size (0 = byte, 1 = short, 2 = long) */
1564 FALSE
, /* pc_relative */
1566 complain_overflow_dont
,/* complain_on_overflow */
1567 bfd_elf_generic_reloc
, /* special_function */
1568 "R_NDS32_GOT_LO19", /* name */
1569 FALSE
, /* partial_inplace */
1570 0x0007ffff, /* src_mask */
1571 0x0007ffff, /* dst_mask */
1572 FALSE
), /* pcrel_offset */
1573 HOWTO2 (R_NDS32_GOTOFF_LO15
, /* type */
1575 2, /* size (0 = byte, 1 = short, 2 = long) */
1577 FALSE
, /* pc_relative */
1579 complain_overflow_dont
,/* complain_on_overflow */
1580 bfd_elf_generic_reloc
, /* special_function */
1581 "R_NDS32_GOTOFF_LO15", /* name */
1582 FALSE
, /* partial_inplace */
1583 0x00007fff, /* src_mask */
1584 0x00007fff, /* dst_mask */
1585 FALSE
), /* pcrel_offset */
1586 HOWTO2 (R_NDS32_GOTOFF_LO19
, /* type */
1588 2, /* size (0 = byte, 1 = short, 2 = long) */
1590 FALSE
, /* pc_relative */
1592 complain_overflow_dont
,/* complain_on_overflow */
1593 bfd_elf_generic_reloc
, /* special_function */
1594 "R_NDS32_GOTOFF_LO19", /* name */
1595 FALSE
, /* partial_inplace */
1596 0x0007ffff, /* src_mask */
1597 0x0007ffff, /* dst_mask */
1598 FALSE
), /* pcrel_offset */
1599 /* GOT 15 bits offset. */
1600 HOWTO2 (R_NDS32_GOT15S2_RELA
, /* type */
1602 2, /* size (0 = byte, 1 = short, 2 = long) */
1604 FALSE
, /* pc_relative */
1606 complain_overflow_signed
,/* complain_on_overflow */
1607 bfd_elf_generic_reloc
, /* special_function */
1608 "R_NDS32_GOT15S2_RELA",/* name */
1609 FALSE
, /* partial_inplace */
1610 0x00007fff, /* src_mask */
1611 0x00007fff, /* dst_mask */
1612 FALSE
), /* pcrel_offset */
1613 /* GOT 17 bits offset. */
1614 HOWTO2 (R_NDS32_GOT17S2_RELA
, /* type */
1616 2, /* size (0 = byte, 1 = short, 2 = long) */
1618 FALSE
, /* pc_relative */
1620 complain_overflow_signed
,/* complain_on_overflow */
1621 bfd_elf_generic_reloc
, /* special_function */
1622 "R_NDS32_GOT17S2_RELA",/* name */
1623 FALSE
, /* partial_inplace */
1624 0x0001ffff, /* src_mask */
1625 0x0001ffff, /* dst_mask */
1626 FALSE
), /* pcrel_offset */
1627 /* A 5 bit address. */
1628 HOWTO2 (R_NDS32_5_RELA
, /* type */
1630 1, /* size (0 = byte, 1 = short, 2 = long) */
1632 FALSE
, /* pc_relative */
1634 complain_overflow_signed
,/* complain_on_overflow */
1635 bfd_elf_generic_reloc
, /* special_function */
1636 "R_NDS32_5_RELA", /* name */
1637 FALSE
, /* partial_inplace */
1638 0x1f, /* src_mask */
1639 0x1f, /* dst_mask */
1640 FALSE
), /* pcrel_offset */
1641 HOWTO2 (R_NDS32_10_UPCREL_RELA
,/* type */
1643 1, /* size (0 = byte, 1 = short, 2 = long) */
1645 TRUE
, /* pc_relative */
1647 complain_overflow_unsigned
,/* complain_on_overflow */
1648 bfd_elf_generic_reloc
, /* special_function */
1649 "R_NDS32_10_UPCREL_RELA",/* name */
1650 FALSE
, /* partial_inplace */
1651 0x1ff, /* src_mask */
1652 0x1ff, /* dst_mask */
1653 TRUE
), /* pcrel_offset */
1654 HOWTO2 (R_NDS32_SDA_FP7U2_RELA
,/* type */
1656 1, /* size (0 = byte, 1 = short, 2 = long) */
1658 FALSE
, /* pc_relative */
1660 complain_overflow_unsigned
,/* complain_on_overflow */
1661 bfd_elf_generic_reloc
, /* special_function */
1662 "R_NDS32_SDA_FP7U2_RELA",/* name */
1663 FALSE
, /* partial_inplace */
1664 0x0000007f, /* src_mask */
1665 0x0000007f, /* dst_mask */
1666 FALSE
), /* pcrel_offset */
1667 HOWTO2 (R_NDS32_WORD_9_PCREL_RELA
,/* type */
1669 2, /* size (0 = byte, 1 = short, 2 = long) */
1671 TRUE
, /* pc_relative */
1673 complain_overflow_signed
,/* complain_on_overflow */
1674 bfd_elf_generic_reloc
, /* special_function */
1675 "R_NDS32_WORD_9_PCREL_RELA",/* name */
1676 FALSE
, /* partial_inplace */
1677 0xff, /* src_mask */
1678 0xff, /* dst_mask */
1679 TRUE
), /* pcrel_offset */
1680 HOWTO2 (R_NDS32_25_ABS_RELA
, /* type */
1682 2, /* size (0 = byte, 1 = short, 2 = long) */
1684 FALSE
, /* pc_relative */
1686 complain_overflow_dont
,/* complain_on_overflow */
1687 bfd_elf_generic_reloc
, /* special_function */
1688 "R_NDS32_25_ABS_RELA", /* name */
1689 FALSE
, /* partial_inplace */
1690 0xffffff, /* src_mask */
1691 0xffffff, /* dst_mask */
1692 FALSE
), /* pcrel_offset */
1694 /* A relative 17 bit relocation for ifc, right shifted by 1. */
1695 HOWTO2 (R_NDS32_17IFC_PCREL_RELA
,/* type */
1697 2, /* size (0 = byte, 1 = short, 2 = long) */
1699 TRUE
, /* pc_relative */
1701 complain_overflow_signed
,/* complain_on_overflow */
1702 bfd_elf_generic_reloc
, /* special_function */
1703 "R_NDS32_17IFC_PCREL_RELA",/* name */
1704 FALSE
, /* partial_inplace */
1705 0xffff, /* src_mask */
1706 0xffff, /* dst_mask */
1707 TRUE
), /* pcrel_offset */
1709 /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */
1710 HOWTO2 (R_NDS32_10IFCU_PCREL_RELA
,/* type */
1712 1, /* size (0 = byte, 1 = short, 2 = long) */
1714 TRUE
, /* pc_relative */
1716 complain_overflow_unsigned
,/* complain_on_overflow */
1717 bfd_elf_generic_reloc
, /* special_function */
1718 "R_NDS32_10IFCU_PCREL_RELA",/* name */
1719 FALSE
, /* partial_inplace */
1720 0x1ff, /* src_mask */
1721 0x1ff, /* dst_mask */
1722 TRUE
), /* pcrel_offset */
1724 /* Like R_NDS32_HI20, but referring to the TLS LE entry for the symbol. */
1725 HOWTO2 (R_NDS32_TLS_LE_HI20
, /* type */
1726 12, /* rightshift */
1727 2, /* size (0 = byte, 1 = short, 2 = long) */
1729 FALSE
, /* pc_relative */
1731 complain_overflow_dont
,/* complain_on_overflow */
1732 bfd_elf_generic_reloc
, /* special_function */
1733 "R_NDS32_TLS_LE_HI20", /* name */
1734 FALSE
, /* partial_inplace */
1735 0x000fffff, /* src_mask */
1736 0x000fffff, /* dst_mask */
1737 FALSE
), /* pcrel_offset */
1739 HOWTO2 (R_NDS32_TLS_LE_LO12
, /* type */
1741 2, /* size (0 = byte, 1 = short, 2 = long) */
1743 FALSE
, /* pc_relative */
1745 complain_overflow_dont
,/* complain_on_overflow */
1746 bfd_elf_generic_reloc
, /* special_function */
1747 "R_NDS32_TLS_LE_LO12", /* name */
1748 FALSE
, /* partial_inplace */
1749 0x00000fff, /* src_mask */
1750 0x00000fff, /* dst_mask */
1751 FALSE
), /* pcrel_offset */
1753 /* Like R_NDS32_HI20, but referring to the TLS IE entry for the symbol. */
1754 HOWTO2 (R_NDS32_TLS_IE_HI20
, /* type */
1755 12, /* rightshift */
1756 2, /* size (0 = byte, 1 = short, 2 = long) */
1758 FALSE
, /* pc_relative */
1760 complain_overflow_dont
,/* complain_on_overflow */
1761 bfd_elf_generic_reloc
, /* special_function */
1762 "R_NDS32_TLS_IE_HI20", /* name */
1763 FALSE
, /* partial_inplace */
1764 0x000fffff, /* src_mask */
1765 0x000fffff, /* dst_mask */
1766 FALSE
), /* pcrel_offset */
1768 HOWTO2 (R_NDS32_TLS_IE_LO12S2
,/* type */
1770 2, /* size (0 = byte, 1 = short, 2 = long) */
1772 FALSE
, /* pc_relative */
1774 complain_overflow_dont
,/* complain_on_overflow */
1775 bfd_elf_generic_reloc
, /* special_function */
1776 "R_NDS32_TLS_IE_LO12S2",/* name */
1777 FALSE
, /* partial_inplace */
1778 0x000003ff, /* src_mask */
1779 0x000003ff, /* dst_mask */
1780 FALSE
), /* pcrel_offset */
1782 /* TLS LE TP offset relocation */
1783 HOWTO2 (R_NDS32_TLS_TPOFF
, /* type */
1785 2, /* size (0 = byte, 1 = short, 2 = long) */
1787 FALSE
, /* pc_relative */
1789 complain_overflow_bitfield
,/* complain_on_overflow */
1790 bfd_elf_generic_reloc
, /* special_function */
1791 "R_NDS32_TLS_TPOFF", /* name */
1792 FALSE
, /* partial_inplace */
1793 0xffffffff, /* src_mask */
1794 0xffffffff, /* dst_mask */
1795 FALSE
), /* pcrel_offset */
1797 /* A 20 bit address. */
1798 HOWTO2 (R_NDS32_TLS_LE_20
, /* type */
1800 2, /* size (0 = byte, 1 = short, 2 = long) */
1802 FALSE
, /* pc_relative */
1804 complain_overflow_signed
,/* complain_on_overflow */
1805 bfd_elf_generic_reloc
, /* special_function */
1806 "R_NDS32_TLS_LE_20", /* name */
1807 FALSE
, /* partial_inplace */
1808 0xfffff, /* src_mask */
1809 0xfffff, /* dst_mask */
1810 FALSE
), /* pcrel_offset */
1812 HOWTO2 (R_NDS32_TLS_LE_15S0
, /* type */
1814 2, /* size (0 = byte, 1 = short, 2 = long) */
1816 FALSE
, /* pc_relative */
1818 complain_overflow_signed
,/* complain_on_overflow */
1819 bfd_elf_generic_reloc
, /* special_function */
1820 "R_NDS32_TLS_LE_15S0", /* name */
1821 FALSE
, /* partial_inplace */
1822 0x7fff, /* src_mask */
1823 0x7fff, /* dst_mask */
1824 FALSE
), /* pcrel_offset */
1825 HOWTO2 (R_NDS32_TLS_LE_15S1
, /* type */
1827 2, /* size (0 = byte, 1 = short, 2 = long) */
1829 FALSE
, /* pc_relative */
1831 complain_overflow_signed
,/* complain_on_overflow */
1832 bfd_elf_generic_reloc
, /* special_function */
1833 "R_NDS32_TLS_LE_15S1", /* name */
1834 FALSE
, /* partial_inplace */
1835 0x7fff, /* src_mask */
1836 0x7fff, /* dst_mask */
1837 FALSE
), /* pcrel_offset */
1838 HOWTO2 (R_NDS32_TLS_LE_15S2
, /* type */
1840 2, /* size (0 = byte, 1 = short, 2 = long) */
1842 FALSE
, /* pc_relative */
1844 complain_overflow_signed
,/* complain_on_overflow */
1845 bfd_elf_generic_reloc
, /* special_function */
1846 "R_NDS32_TLS_LE_15S2", /* name */
1847 FALSE
, /* partial_inplace */
1848 0x7fff, /* src_mask */
1849 0x7fff, /* dst_mask */
1850 FALSE
), /* pcrel_offset */
1852 /* Relax hint for unconditional call sequence */
1853 HOWTO2 (R_NDS32_LONGCALL4
, /* type */
1855 2, /* size (0 = byte, 1 = short, 2 = long) */
1857 FALSE
, /* pc_relative */
1859 complain_overflow_dont
,/* complain_on_overflow */
1860 nds32_elf_ignore_reloc
,/* special_function */
1861 "R_NDS32_LONGCALL4", /* name */
1862 FALSE
, /* partial_inplace */
1863 0xffffffff, /* src_mask */
1864 0xffffffff, /* dst_mask */
1865 FALSE
), /* pcrel_offset */
1867 /* Relax hint for conditional call sequence. */
1868 HOWTO2 (R_NDS32_LONGCALL5
, /* type */
1870 2, /* size (0 = byte, 1 = short, 2 = long) */
1872 FALSE
, /* pc_relative */
1874 complain_overflow_dont
,/* complain_on_overflow */
1875 nds32_elf_ignore_reloc
,/* special_function */
1876 "R_NDS32_LONGCALL5", /* name */
1877 FALSE
, /* partial_inplace */
1878 0xffffffff, /* src_mask */
1879 0xffffffff, /* dst_mask */
1880 FALSE
), /* pcrel_offset */
1882 /* Relax hint for conditional call sequence. */
1883 HOWTO2 (R_NDS32_LONGCALL6
, /* type */
1885 2, /* size (0 = byte, 1 = short, 2 = long) */
1887 FALSE
, /* pc_relative */
1889 complain_overflow_dont
,/* complain_on_overflow */
1890 nds32_elf_ignore_reloc
,/* special_function */
1891 "R_NDS32_LONGCALL6", /* name */
1892 FALSE
, /* partial_inplace */
1893 0xffffffff, /* src_mask */
1894 0xffffffff, /* dst_mask */
1895 FALSE
), /* pcrel_offset */
1897 /* Relax hint for unconditional branch sequence. */
1898 HOWTO2 (R_NDS32_LONGJUMP4
, /* type */
1900 2, /* size (0 = byte, 1 = short, 2 = long) */
1902 FALSE
, /* pc_relative */
1904 complain_overflow_dont
,/* complain_on_overflow */
1905 nds32_elf_ignore_reloc
,/* special_function */
1906 "R_NDS32_LONGJUMP4", /* name */
1907 FALSE
, /* partial_inplace */
1908 0xffffffff, /* src_mask */
1909 0xffffffff, /* dst_mask */
1910 FALSE
), /* pcrel_offset */
1912 /* Relax hint for conditional branch sequence. */
1913 HOWTO2 (R_NDS32_LONGJUMP5
, /* type */
1915 2, /* size (0 = byte, 1 = short, 2 = long) */
1917 FALSE
, /* pc_relative */
1919 complain_overflow_dont
,/* complain_on_overflow */
1920 nds32_elf_ignore_reloc
,/* special_function */
1921 "R_NDS32_LONGJUMP5", /* name */
1922 FALSE
, /* partial_inplace */
1923 0xffffffff, /* src_mask */
1924 0xffffffff, /* dst_mask */
1925 FALSE
), /* pcrel_offset */
1927 /* Relax hint for conditional branch sequence. */
1928 HOWTO2 (R_NDS32_LONGJUMP6
, /* type */
1930 2, /* size (0 = byte, 1 = short, 2 = long) */
1932 FALSE
, /* pc_relative */
1934 complain_overflow_dont
,/* complain_on_overflow */
1935 nds32_elf_ignore_reloc
,/* special_function */
1936 "R_NDS32_LONGJUMP6", /* name */
1937 FALSE
, /* partial_inplace */
1938 0xffffffff, /* src_mask */
1939 0xffffffff, /* dst_mask */
1940 FALSE
), /* pcrel_offset */
1942 /* Relax hint for conditional branch sequence. */
1943 HOWTO2 (R_NDS32_LONGJUMP7
, /* type */
1945 2, /* size (0 = byte, 1 = short, 2 = long) */
1947 FALSE
, /* pc_relative */
1949 complain_overflow_dont
,/* complain_on_overflow */
1950 nds32_elf_ignore_reloc
,/* special_function */
1951 "R_NDS32_LONGJUMP7", /* name */
1952 FALSE
, /* partial_inplace */
1953 0xffffffff, /* src_mask */
1954 0xffffffff, /* dst_mask */
1955 FALSE
), /* pcrel_offset */
1957 HOWTO2 (R_NDS32_TLS_IE_LO12
, /* type */
1959 2, /* size (0 = byte, 1 = short, 2 = long) */
1961 FALSE
, /* pc_relative */
1963 complain_overflow_dont
,/* complain_on_overflow */
1964 bfd_elf_generic_reloc
, /* special_function */
1965 "R_NDS32_TLS_IE_LO12", /* name */
1966 FALSE
, /* partial_inplace */
1967 0x00000fff, /* src_mask */
1968 0x00000fff, /* dst_mask */
1969 FALSE
), /* pcrel_offset */
1971 /* Like R_NDS32_HI20, but referring to the TLS IE (PIE)
1972 entry for the symbol. */
1973 HOWTO2 (R_NDS32_TLS_IEGP_HI20
,/* type */
1974 12, /* rightshift */
1975 2, /* size (0 = byte, 1 = short, 2 = long) */
1977 FALSE
, /* pc_relative */
1979 complain_overflow_dont
,/* complain_on_overflow */
1980 bfd_elf_generic_reloc
, /* special_function */
1981 "R_NDS32_TLS_IEGP_HI20",/* name */
1982 FALSE
, /* partial_inplace */
1983 0x000fffff, /* src_mask */
1984 0x000fffff, /* dst_mask */
1985 FALSE
), /* pcrel_offset */
1987 HOWTO2 (R_NDS32_TLS_IEGP_LO12
,/* type */
1989 2, /* size (0 = byte, 1 = short, 2 = long) */
1991 FALSE
, /* pc_relative */
1993 complain_overflow_dont
,/* complain_on_overflow */
1994 bfd_elf_generic_reloc
, /* special_function */
1995 "R_NDS32_TLS_IEGP_LO12",/* name */
1996 FALSE
, /* partial_inplace */
1997 0x00000fff, /* src_mask */
1998 0x00000fff, /* dst_mask */
1999 FALSE
), /* pcrel_offset */
2001 HOWTO2 (R_NDS32_TLS_IEGP_LO12S2
,/* type */
2003 2, /* size (0 = byte, 1 = short, 2 = long) */
2005 FALSE
, /* pc_relative */
2007 complain_overflow_dont
,/* complain_on_overflow */
2008 bfd_elf_generic_reloc
, /* special_function */
2009 "R_NDS32_TLS_IEGP_LO12S2",/* name */
2010 FALSE
, /* partial_inplace */
2011 0x000003ff, /* src_mask */
2012 0x000003ff, /* dst_mask */
2013 FALSE
), /* pcrel_offset */
2015 /* TLS description relocation */
2016 HOWTO2 (R_NDS32_TLS_DESC
, /* type */
2017 12, /* rightshift */
2018 2, /* size (0 = byte, 1 = short, 2 = long) */
2020 FALSE
, /* pc_relative */
2022 complain_overflow_dont
,/* complain_on_overflow */
2023 nds32_elf_hi20_reloc
, /* special_function */
2024 "R_NDS32_TLS_DESC_HI20",/* name */
2025 FALSE
, /* partial_inplace */
2026 0x000fffff, /* src_mask */
2027 0x000fffff, /* dst_mask */
2028 FALSE
), /* pcrel_offset */
2030 /* TLS GD/LD description offset high part. */
2031 HOWTO2 (R_NDS32_TLS_DESC_HI20
,/* type */
2032 12, /* rightshift */
2033 2, /* size (0 = byte, 1 = short, 2 = long) */
2035 FALSE
, /* pc_relative */
2037 complain_overflow_dont
,/* complain_on_overflow */
2038 nds32_elf_hi20_reloc
, /* special_function */
2039 "R_NDS32_TLS_DESC_HI20",/* name */
2040 FALSE
, /* partial_inplace */
2041 0x000fffff, /* src_mask */
2042 0x000fffff, /* dst_mask */
2043 FALSE
), /* pcrel_offset */
2045 /* TLS GD/LD description offset low part. */
2046 HOWTO2 (R_NDS32_TLS_DESC_LO12
,/* type */
2048 2, /* size (0 = byte, 1 = short, 2 = long) */
2050 FALSE
, /* pc_relative */
2052 complain_overflow_dont
,/* complain_on_overflow */
2053 nds32_elf_lo12_reloc
, /* special_function */
2054 "R_NDS32_TLS_DESC_LO12",/* name */
2055 FALSE
, /* partial_inplace */
2056 0x00000fff, /* src_mask */
2057 0x00000fff, /* dst_mask */
2058 FALSE
), /* pcrel_offset */
2060 /* TLS GD/LD description offset set (movi). */
2061 HOWTO2 (R_NDS32_TLS_DESC_20
, /* type */
2063 2, /* size (0 = byte, 1 = short, 2 = long) */
2065 FALSE
, /* pc_relative */
2067 complain_overflow_signed
,/* complain_on_overflow */
2068 bfd_elf_generic_reloc
, /* special_function */
2069 "R_NDS32_TLS_DESC_20", /* name */
2070 FALSE
, /* partial_inplace */
2071 0x000fffff, /* src_mask */
2072 0x000fffff, /* dst_mask */
2073 FALSE
), /* pcrel_offset */
2075 /* TLS GD/LD description offset set (lwi.gp). */
2076 HOWTO2 (R_NDS32_TLS_DESC_SDA17S2
,/* type */
2078 2, /* size (0 = byte, 1 = short, 2 = long) */
2080 FALSE
, /* pc_relative */
2082 complain_overflow_signed
,/* complain_on_overflow */
2083 bfd_elf_generic_reloc
, /* special_function */
2084 "R_NDS32_TLS_DESC_SDA17S2",/* name */
2085 FALSE
, /* partial_inplace */
2086 0x0001ffff, /* src_mask */
2087 0x0001ffff, /* dst_mask */
2088 FALSE
), /* pcrel_offset */
2091 /* Relocations used for relaxation. */
2092 #define HOWTO3(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
2093 [C-R_NDS32_RELAX_ENTRY] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC)
2095 static reloc_howto_type nds32_elf_relax_howto_table
[] = {
2096 HOWTO3 (R_NDS32_RELAX_ENTRY
, /* type */
2098 2, /* size (0 = byte, 1 = short, 2 = long) */
2100 FALSE
, /* pc_relative */
2102 complain_overflow_dont
,/* complain_on_overflow */
2103 nds32_elf_ignore_reloc
,/* special_function */
2104 "R_NDS32_RELAX_ENTRY", /* name */
2105 FALSE
, /* partial_inplace */
2106 0xffffffff, /* src_mask */
2107 0xffffffff, /* dst_mask */
2108 FALSE
), /* pcrel_offset */
2109 HOWTO3 (R_NDS32_GOT_SUFF
, /* type */
2111 2, /* size (0 = byte, 1 = short, 2 = long) */
2113 FALSE
, /* pc_relative */
2115 complain_overflow_dont
,/* complain_on_overflow */
2116 nds32_elf_ignore_reloc
,/* special_function */
2117 "R_NDS32_GOT_SUFF", /* name */
2118 FALSE
, /* partial_inplace */
2119 0xffffffff, /* src_mask */
2120 0xffffffff, /* dst_mask */
2121 FALSE
), /* pcrel_offset */
2122 HOWTO3 (R_NDS32_GOTOFF_SUFF
, /* type */
2124 2, /* size (0 = byte, 1 = short, 2 = long) */
2126 FALSE
, /* pc_relative */
2128 complain_overflow_bitfield
,/* complain_on_overflow */
2129 nds32_elf_ignore_reloc
,/* special_function */
2130 "R_NDS32_GOTOFF_SUFF", /* name */
2131 FALSE
, /* partial_inplace */
2132 0xffffffff, /* src_mask */
2133 0xffffffff, /* dst_mask */
2134 FALSE
), /* pcrel_offset */
2135 HOWTO3 (R_NDS32_PLT_GOT_SUFF
, /* type */
2137 2, /* size (0 = byte, 1 = short, 2 = long) */
2139 FALSE
, /* pc_relative */
2141 complain_overflow_dont
,/* complain_on_overflow */
2142 nds32_elf_ignore_reloc
,/* special_function */
2143 "R_NDS32_PLT_GOT_SUFF",/* name */
2144 FALSE
, /* partial_inplace */
2145 0xffffffff, /* src_mask */
2146 0xffffffff, /* dst_mask */
2147 FALSE
), /* pcrel_offset */
2148 HOWTO3 (R_NDS32_MULCALL_SUFF
, /* type */
2150 2, /* size (0 = byte, 1 = short, 2 = long) */
2152 FALSE
, /* pc_relative */
2154 complain_overflow_dont
,/* complain_on_overflow */
2155 nds32_elf_ignore_reloc
,/* special_function */
2156 "R_NDS32_MULCALL_SUFF",/* name */
2157 FALSE
, /* partial_inplace */
2158 0xffffffff, /* src_mask */
2159 0xffffffff, /* dst_mask */
2160 FALSE
), /* pcrel_offset */
2161 HOWTO3 (R_NDS32_PTR
, /* type */
2163 2, /* size (0 = byte, 1 = short, 2 = long) */
2165 FALSE
, /* pc_relative */
2167 complain_overflow_dont
,/* complain_on_overflow */
2168 nds32_elf_ignore_reloc
,/* special_function */
2169 "R_NDS32_PTR", /* name */
2170 FALSE
, /* partial_inplace */
2171 0xffffffff, /* src_mask */
2172 0xffffffff, /* dst_mask */
2173 FALSE
), /* pcrel_offset */
2174 HOWTO3 (R_NDS32_PTR_COUNT
, /* type */
2176 2, /* size (0 = byte, 1 = short, 2 = long) */
2178 FALSE
, /* pc_relative */
2180 complain_overflow_dont
,/* complain_on_overflow */
2181 nds32_elf_ignore_reloc
,/* special_function */
2182 "R_NDS32_PTR_COUNT", /* name */
2183 FALSE
, /* partial_inplace */
2184 0xffffffff, /* src_mask */
2185 0xffffffff, /* dst_mask */
2186 FALSE
), /* pcrel_offset */
2187 HOWTO3 (R_NDS32_PTR_RESOLVED
, /* type */
2189 2, /* size (0 = byte, 1 = short, 2 = long) */
2191 FALSE
, /* pc_relative */
2193 complain_overflow_dont
,/* complain_on_overflow */
2194 nds32_elf_ignore_reloc
,/* special_function */
2195 "R_NDS32_PTR_RESOLVED",/* name */
2196 FALSE
, /* partial_inplace */
2197 0xffffffff, /* src_mask */
2198 0xffffffff, /* dst_mask */
2199 FALSE
), /* pcrel_offset */
2200 HOWTO3 (R_NDS32_PLTBLOCK
, /* type */
2202 2, /* size (0 = byte, 1 = short, 2 = long) */
2204 FALSE
, /* pc_relative */
2206 complain_overflow_dont
,/* complain_on_overflow */
2207 nds32_elf_ignore_reloc
,/* special_function */
2208 "R_NDS32_PLTBLOCK", /* name */
2209 FALSE
, /* partial_inplace */
2210 0xffffffff, /* src_mask */
2211 0xffffffff, /* dst_mask */
2212 FALSE
), /* pcrel_offset */
2213 HOWTO3 (R_NDS32_RELAX_REGION_BEGIN
,/* type */
2215 2, /* size (0 = byte, 1 = short, 2 = long) */
2217 FALSE
, /* pc_relative */
2219 complain_overflow_dont
,/* complain_on_overflow */
2220 nds32_elf_ignore_reloc
,/* special_function */
2221 "R_NDS32_RELAX_REGION_BEGIN",/* name */
2222 FALSE
, /* partial_inplace */
2223 0xffffffff, /* src_mask */
2224 0xffffffff, /* dst_mask */
2225 FALSE
), /* pcrel_offset */
2226 HOWTO3 (R_NDS32_RELAX_REGION_END
,/* type */
2228 2, /* size (0 = byte, 1 = short, 2 = long) */
2230 FALSE
, /* pc_relative */
2232 complain_overflow_dont
,/* complain_on_overflow */
2233 nds32_elf_ignore_reloc
,/* special_function */
2234 "R_NDS32_RELAX_REGION_END",/* name */
2235 FALSE
, /* partial_inplace */
2236 0xffffffff, /* src_mask */
2237 0xffffffff, /* dst_mask */
2238 FALSE
), /* pcrel_offset */
2239 HOWTO3 (R_NDS32_MINUEND
, /* type */
2241 2, /* size (0 = byte, 1 = short, 2 = long) */
2243 FALSE
, /* pc_relative */
2245 complain_overflow_dont
,/* complain_on_overflow */
2246 nds32_elf_ignore_reloc
,/* special_function */
2247 "R_NDS32_MINUEND", /* name */
2248 FALSE
, /* partial_inplace */
2249 0xffffffff, /* src_mask */
2250 0xffffffff, /* dst_mask */
2251 FALSE
), /* pcrel_offset */
2252 HOWTO3 (R_NDS32_SUBTRAHEND
, /* type */
2254 2, /* size (0 = byte, 1 = short, 2 = long) */
2256 FALSE
, /* pc_relative */
2258 complain_overflow_dont
,/* complain_on_overflow */
2259 nds32_elf_ignore_reloc
,/* special_function */
2260 "R_NDS32_SUBTRAHEND", /* name */
2261 FALSE
, /* partial_inplace */
2262 0xffffffff, /* src_mask */
2263 0xffffffff, /* dst_mask */
2264 FALSE
), /* pcrel_offset */
2265 HOWTO3 (R_NDS32_DIFF8
, /* type */
2267 0, /* size (0 = byte, 1 = short, 2 = long) */
2269 FALSE
, /* pc_relative */
2271 complain_overflow_dont
,/* complain_on_overflow */
2272 nds32_elf_ignore_reloc
,/* special_function */
2273 "R_NDS32_DIFF8", /* name */
2274 FALSE
, /* partial_inplace */
2275 0x000000ff, /* src_mask */
2276 0x000000ff, /* dst_mask */
2277 FALSE
), /* pcrel_offset */
2278 HOWTO3 (R_NDS32_DIFF16
, /* type */
2280 1, /* size (0 = byte, 1 = short, 2 = long) */
2282 FALSE
, /* pc_relative */
2284 complain_overflow_dont
,/* complain_on_overflow */
2285 nds32_elf_ignore_reloc
,/* special_function */
2286 "R_NDS32_DIFF16", /* name */
2287 FALSE
, /* partial_inplace */
2288 0x0000ffff, /* src_mask */
2289 0x0000ffff, /* dst_mask */
2290 FALSE
), /* pcrel_offset */
2291 HOWTO3 (R_NDS32_DIFF32
, /* type */
2293 2, /* size (0 = byte, 1 = short, 2 = long) */
2295 FALSE
, /* pc_relative */
2297 complain_overflow_dont
,/* complain_on_overflow */
2298 nds32_elf_ignore_reloc
,/* special_function */
2299 "R_NDS32_DIFF32", /* name */
2300 FALSE
, /* partial_inplace */
2301 0xffffffff, /* src_mask */
2302 0xffffffff, /* dst_mask */
2303 FALSE
), /* pcrel_offset */
2304 HOWTO3 (R_NDS32_DIFF_ULEB128
, /* type */
2306 0, /* size (0 = byte, 1 = short, 2 = long) */
2308 FALSE
, /* pc_relative */
2310 complain_overflow_dont
,/* complain_on_overflow */
2311 nds32_elf_ignore_reloc
,/* special_function */
2312 "R_NDS32_DIFF_ULEB128",/* name */
2313 FALSE
, /* partial_inplace */
2314 0xffffffff, /* src_mask */
2315 0xffffffff, /* dst_mask */
2316 FALSE
), /* pcrel_offset */
2317 HOWTO3 (R_NDS32_DATA
, /* type */
2319 2, /* size (0 = byte, 1 = short, 2 = long) */
2321 FALSE
, /* pc_relative */
2323 complain_overflow_dont
,/* complain_on_overflow */
2324 nds32_elf_ignore_reloc
,/* special_function */
2325 "R_NDS32_DATA", /* name */
2326 FALSE
, /* partial_inplace */
2327 0xffffffff, /* src_mask */
2328 0xffffffff, /* dst_mask */
2329 FALSE
), /* pcrel_offset */
2330 HOWTO3 (R_NDS32_TRAN
, /* type */
2332 2, /* size (0 = byte, 1 = short, 2 = long) */
2334 FALSE
, /* pc_relative */
2336 complain_overflow_dont
,/* complain_on_overflow */
2337 nds32_elf_ignore_reloc
,/* special_function */
2338 "R_NDS32_TRAN", /* name */
2339 FALSE
, /* partial_inplace */
2340 0xffffffff, /* src_mask */
2341 0xffffffff, /* dst_mask */
2342 FALSE
), /* pcrel_offset */
2343 HOWTO3 (R_NDS32_TLS_LE_ADD
, /* type */
2345 2, /* size (0 = byte, 1 = short, 2 = long) */
2347 FALSE
, /* pc_relative */
2349 complain_overflow_dont
,/* complain_on_overflow */
2350 nds32_elf_ignore_reloc
,/* special_function */
2351 "R_NDS32_TLS_LE_ADD", /* name */
2352 FALSE
, /* partial_inplace */
2353 0xffffffff, /* src_mask */
2354 0xffffffff, /* dst_mask */
2355 FALSE
), /* pcrel_offset */
2356 HOWTO3 (R_NDS32_TLS_LE_LS
, /* type */
2358 2, /* size (0 = byte, 1 = short, 2 = long) */
2360 FALSE
, /* pc_relative */
2362 complain_overflow_dont
,/* complain_on_overflow */
2363 nds32_elf_ignore_reloc
,/* special_function */
2364 "R_NDS32_TLS_LE_LS", /* name */
2365 FALSE
, /* partial_inplace */
2366 0xffffffff, /* src_mask */
2367 0xffffffff, /* dst_mask */
2368 FALSE
), /* pcrel_offset */
2369 HOWTO3 (R_NDS32_EMPTY
, /* type */
2371 2, /* size (0 = byte, 1 = short, 2 = long) */
2373 FALSE
, /* pc_relative */
2375 complain_overflow_dont
,/* complain_on_overflow */
2376 nds32_elf_ignore_reloc
,/* special_function */
2377 "R_NDS32_EMPTY", /* name */
2378 FALSE
, /* partial_inplace */
2379 0xffffffff, /* src_mask */
2380 0xffffffff, /* dst_mask */
2381 FALSE
), /* pcrel_offset */
2382 /* TLS GD/LD description address base addition. */
2383 HOWTO3 (R_NDS32_TLS_DESC_ADD
, /* type */
2385 2, /* size (0 = byte, 1 = short, 2 = long) */
2387 FALSE
, /* pc_relative */
2389 complain_overflow_dont
,/* complain_on_overflow */
2390 nds32_elf_ignore_reloc
,/* special_function */
2391 "R_NDS32_TLS_DESC_ADD",/* name */
2392 FALSE
, /* partial_inplace */
2393 0xffffffff, /* src_mask */
2394 0xffffffff, /* dst_mask */
2395 FALSE
), /* pcrel_offset */
2396 /* TLS GD/LD description function load. */
2397 HOWTO3 (R_NDS32_TLS_DESC_FUNC
,/* type */
2399 2, /* size (0 = byte, 1 = short, 2 = long) */
2401 FALSE
, /* pc_relative */
2403 complain_overflow_dont
,/* complain_on_overflow */
2404 nds32_elf_ignore_reloc
,/* special_function */
2405 "R_NDS32_TLS_DESC_FUNC",/* name */
2406 FALSE
, /* partial_inplace */
2407 0xffffffff, /* src_mask */
2408 0xffffffff, /* dst_mask */
2409 FALSE
), /* pcrel_offset */
2410 /* TLS DESC resolve function call. */
2411 HOWTO3 (R_NDS32_TLS_DESC_CALL
,/* type */
2413 2, /* size (0 = byte, 1 = short, 2 = long) */
2415 FALSE
, /* pc_relative */
2417 complain_overflow_dont
,/* complain_on_overflow */
2418 nds32_elf_ignore_reloc
,/* special_function */
2419 "R_NDS32_TLS_DESC_CALL",/* name */
2420 FALSE
, /* partial_inplace */
2421 0xffffffff, /* src_mask */
2422 0xffffffff, /* dst_mask */
2423 FALSE
), /* pcrel_offset */
2424 /* TLS DESC variable access. */
2425 HOWTO3 (R_NDS32_TLS_DESC_MEM
, /* type */
2427 2, /* size (0 = byte, 1 = short, 2 = long) */
2429 FALSE
, /* pc_relative */
2431 complain_overflow_dont
,/* complain_on_overflow */
2432 nds32_elf_ignore_reloc
,/* special_function */
2433 "R_NDS32_TLS_DESC_MEM",/* name */
2434 FALSE
, /* partial_inplace */
2435 0xffffffff, /* src_mask */
2436 0xffffffff, /* dst_mask */
2437 FALSE
), /* pcrel_offset */
2438 /* TLS GD/LD description mark (@tlsdec). */
2439 HOWTO3 (R_NDS32_RELAX_REMOVE
, /* type */
2441 2, /* size (0 = byte, 1 = short, 2 = long) */
2443 FALSE
, /* pc_relative */
2445 complain_overflow_dont
,/* complain_on_overflow */
2446 nds32_elf_ignore_reloc
,/* special_function */
2447 "R_NDS32_REMOVE", /* name */
2448 FALSE
, /* partial_inplace */
2449 0xffffffff, /* src_mask */
2450 0xffffffff, /* dst_mask */
2451 FALSE
), /* pcrel_offset */
2452 /* TLS GD/LD description mark (@tlsdec). */
2453 HOWTO3 (R_NDS32_RELAX_GROUP
, /* type */
2455 2, /* size (0 = byte, 1 = short, 2 = long) */
2457 FALSE
, /* pc_relative */
2459 complain_overflow_dont
,/* complain_on_overflow */
2460 nds32_elf_ignore_reloc
,/* special_function */
2461 "R_NDS32_GROUP", /* name */
2462 FALSE
, /* partial_inplace */
2463 0xffffffff, /* src_mask */
2464 0xffffffff, /* dst_mask */
2465 FALSE
), /* pcrel_offset */
2466 HOWTO3 (R_NDS32_TLS_IEGP_LW
, /* type */
2468 2, /* size (0 = byte, 1 = short, 2 = long) */
2470 FALSE
, /* pc_relative */
2472 complain_overflow_dont
,/* complain_on_overflow */
2473 nds32_elf_ignore_reloc
,/* special_function */
2474 "R_NDS32_TLS_IEGP_LW", /* name */
2475 FALSE
, /* partial_inplace */
2476 0xffffffff, /* src_mask */
2477 0xffffffff, /* dst_mask */
2478 FALSE
), /* pcrel_offset */
2479 /* LA and FLSI relaxation. */
2480 HOWTO3 (R_NDS32_LSI
, /* type */
2482 2, /* size (0 = byte, 1 = short, 2 = long) */
2484 FALSE
, /* pc_relative */
2486 complain_overflow_dont
,/* complain_on_overflow */
2487 nds32_elf_ignore_reloc
,/* special_function */
2488 "R_NDS32_LSI", /* name */
2489 FALSE
, /* partial_inplace */
2490 0xffffffff, /* src_mask */
2491 0xffffffff, /* dst_mask */
2495 static unsigned long dl_tlsdesc_lazy_trampoline
[] =
2497 0x46200000, /* sethi $r2,#0x0 */
2498 0x58210000, /* ori $r2,$r2,#0x0 */
2499 0x40217400, /* add $r2,$r2,$gp */
2500 0x04210000, /* lwi $r2,[$r2+#0x0] */
2501 0x46300000, /* sethi $r3,#0x0 */
2502 0x58318000, /* ori $r3,$r3,#0x0 */
2503 0x4031f400, /* add $r3,$r3,$gp */
2504 0x4a000800, /* jr $r2 */
2508 nds32_put_trampoline (void *contents
, const unsigned long *template,
2513 for (ix
= 0; ix
!= count
; ix
++)
2515 unsigned long insn
= template[ix
];
2516 bfd_putb32 (insn
, (char *) contents
+ ix
* 4);
2520 /* nds32_insertion_sort sorts an array with nmemb elements of size size.
2521 This prototype is the same as qsort (). */
2524 nds32_insertion_sort (void *base
, size_t nmemb
, size_t size
,
2525 int (*compar
) (const void *lhs
, const void *rhs
))
2527 char *ptr
= (char *) base
;
2529 char tmp
[sizeof (Elf_Internal_Rela
)];
2531 BFD_ASSERT (size
<= sizeof (tmp
));
2533 /* If i is less than j, i is inserted before j.
2535 |---- j ----- i --------------|
2540 for (i
= 1; i
< (int) nmemb
; i
++)
2542 for (j
= (i
- 1); j
>= 0; j
--)
2543 if (compar (ptr
+ i
* size
, ptr
+ j
* size
) >= 0)
2549 continue; /* i is in order. */
2551 memcpy (tmp
, ptr
+ i
* size
, size
);
2552 memmove (ptr
+ (j
+ 1) * size
, ptr
+ j
* size
, (i
- j
) * size
);
2553 memcpy (ptr
+ j
* size
, tmp
, size
);
2557 /* Sort relocation by r_offset.
2559 We didn't use qsort () in stdlib, because quick-sort is not a stable sorting
2560 algorithm. Relocations at the same r_offset must keep their order.
2561 For example, RELAX_ENTRY must be the very first relocation entry.
2563 Currently, this function implements insertion-sort.
2565 FIXME: If we already sort them in assembler, why bother sort them
2569 compar_reloc (const void *lhs
, const void *rhs
)
2571 const Elf_Internal_Rela
*l
= (const Elf_Internal_Rela
*) lhs
;
2572 const Elf_Internal_Rela
*r
= (const Elf_Internal_Rela
*) rhs
;
2574 if (l
->r_offset
> r
->r_offset
)
2576 else if (l
->r_offset
== r
->r_offset
)
2582 /* Functions listed below are only used for old relocs.
2583 nds32_elf_9_pcrel_reloc
2584 nds32_elf_do_9_pcrel_reloc
2585 nds32_elf_hi20_reloc
2586 nds32_elf_relocate_hi20
2587 nds32_elf_lo12_reloc
2588 nds32_elf_sda15_reloc
2589 nds32_elf_generic_reloc. */
2591 /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */
2593 static bfd_reloc_status_type
2594 nds32_elf_9_pcrel_reloc (bfd
* abfd
,
2595 arelent
* reloc_entry
,
2598 asection
* input_section
,
2600 char ** error_message ATTRIBUTE_UNUSED
)
2602 /* This part is from bfd_elf_generic_reloc. */
2603 if (output_bfd
!= (bfd
*) NULL
2604 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2605 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2607 reloc_entry
->address
+= input_section
->output_offset
;
2608 return bfd_reloc_ok
;
2611 if (output_bfd
!= NULL
)
2613 /* FIXME: See bfd_perform_relocation. Is this right? */
2614 return bfd_reloc_continue
;
2617 return nds32_elf_do_9_pcrel_reloc (abfd
, reloc_entry
->howto
,
2619 data
, reloc_entry
->address
,
2622 + symbol
->section
->output_section
->vma
2623 + symbol
->section
->output_offset
),
2624 reloc_entry
->addend
);
2627 /* Utility to actually perform an R_NDS32_9_PCREL reloc. */
2628 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
2630 static bfd_reloc_status_type
2631 nds32_elf_do_9_pcrel_reloc (bfd
* abfd
,
2632 reloc_howto_type
* howto
,
2633 asection
* input_section
,
2636 asection
* symbol_section ATTRIBUTE_UNUSED
,
2637 bfd_vma symbol_value
,
2640 bfd_signed_vma relocation
;
2642 bfd_reloc_status_type status
;
2644 /* Sanity check the address (offset in section). */
2645 if (offset
> bfd_get_section_limit (abfd
, input_section
))
2646 return bfd_reloc_outofrange
;
2648 relocation
= symbol_value
+ addend
;
2649 /* Make it pc relative. */
2650 relocation
-= (input_section
->output_section
->vma
2651 + input_section
->output_offset
);
2652 /* These jumps mask off the lower two bits of the current address
2653 before doing pcrel calculations. */
2654 relocation
-= (offset
& -(bfd_vma
) 2);
2656 if (relocation
< -ACCURATE_8BIT_S1
|| relocation
>= ACCURATE_8BIT_S1
)
2657 status
= bfd_reloc_overflow
;
2659 status
= bfd_reloc_ok
;
2661 x
= bfd_getb16 (data
+ offset
);
2663 relocation
>>= howto
->rightshift
;
2664 relocation
<<= howto
->bitpos
;
2665 x
= (x
& ~howto
->dst_mask
)
2666 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
);
2668 bfd_putb16 ((bfd_vma
) x
, data
+ offset
);
2673 /* Handle the R_NDS32_HI20_[SU]LO relocs.
2674 HI20_SLO is for the add3 and load/store with displacement instructions.
2675 HI20 is for the or3 instruction.
2676 For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to
2677 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
2678 we must add one to the high 16 bytes (which will get subtracted off when
2679 the low 16 bits are added).
2680 These relocs have to be done in combination with an R_NDS32_LO12 reloc
2681 because there is a carry from the LO12 to the HI20. Here we just save
2682 the information we need; we do the actual relocation when we see the LO12.
2683 This code is copied from the elf32-mips.c. We also support an arbitrary
2684 number of HI20 relocs to be associated with a single LO12 reloc. The
2685 assembler sorts the relocs to ensure each HI20 immediately precedes its
2686 LO12. However if there are multiple copies, the assembler may not find
2687 the real LO12 so it picks the first one it finds. */
2691 struct nds32_hi20
*next
;
2696 static struct nds32_hi20
*nds32_hi20_list
;
2698 static bfd_reloc_status_type
2699 nds32_elf_hi20_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
2700 arelent
*reloc_entry
,
2703 asection
*input_section
,
2705 char **error_message ATTRIBUTE_UNUSED
)
2707 bfd_reloc_status_type ret
;
2709 struct nds32_hi20
*n
;
2711 /* This part is from bfd_elf_generic_reloc.
2712 If we're relocating, and this an external symbol, we don't want
2713 to change anything. */
2714 if (output_bfd
!= (bfd
*) NULL
2715 && (symbol
->flags
& BSF_SECTION_SYM
) == 0 && reloc_entry
->addend
== 0)
2717 reloc_entry
->address
+= input_section
->output_offset
;
2718 return bfd_reloc_ok
;
2721 /* Sanity check the address (offset in section). */
2722 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
2723 return bfd_reloc_outofrange
;
2726 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2727 ret
= bfd_reloc_undefined
;
2729 if (bfd_is_com_section (symbol
->section
))
2732 relocation
= symbol
->value
;
2734 relocation
+= symbol
->section
->output_section
->vma
;
2735 relocation
+= symbol
->section
->output_offset
;
2736 relocation
+= reloc_entry
->addend
;
2738 /* Save the information, and let LO12 do the actual relocation. */
2739 n
= (struct nds32_hi20
*) bfd_malloc ((bfd_size_type
) sizeof *n
);
2741 return bfd_reloc_outofrange
;
2743 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
2744 n
->addend
= relocation
;
2745 n
->next
= nds32_hi20_list
;
2746 nds32_hi20_list
= n
;
2748 if (output_bfd
!= (bfd
*) NULL
)
2749 reloc_entry
->address
+= input_section
->output_offset
;
2754 /* Handle an NDS32 ELF HI20 reloc. */
2757 nds32_elf_relocate_hi20 (bfd
*input_bfd ATTRIBUTE_UNUSED
,
2758 int type ATTRIBUTE_UNUSED
,
2759 Elf_Internal_Rela
*relhi
,
2760 Elf_Internal_Rela
*rello
,
2767 insn
= bfd_getb32 (contents
+ relhi
->r_offset
);
2769 addlo
= bfd_getb32 (contents
+ rello
->r_offset
);
2772 addend
+= ((insn
& 0xfffff) << 20) + addlo
;
2774 insn
= (insn
& 0xfff00000) | ((addend
>> 12) & 0xfffff);
2775 bfd_putb32 (insn
, contents
+ relhi
->r_offset
);
2778 /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit
2779 inplace relocation; this function exists in order to do the
2780 R_NDS32_HI20_[SU]LO relocation described above. */
2782 static bfd_reloc_status_type
2783 nds32_elf_lo12_reloc (bfd
*input_bfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2784 void *data
, asection
*input_section
, bfd
*output_bfd
,
2785 char **error_message
)
2787 /* This part is from bfd_elf_generic_reloc.
2788 If we're relocating, and this an external symbol, we don't want
2789 to change anything. */
2790 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2791 && reloc_entry
->addend
== 0)
2793 reloc_entry
->address
+= input_section
->output_offset
;
2794 return bfd_reloc_ok
;
2797 if (nds32_hi20_list
!= NULL
)
2799 struct nds32_hi20
*l
;
2801 l
= nds32_hi20_list
;
2806 unsigned long vallo
;
2807 struct nds32_hi20
*next
;
2809 /* Do the HI20 relocation. Note that we actually don't need
2810 to know anything about the LO12 itself, except where to
2811 find the low 12 bits of the addend needed by the LO12. */
2812 insn
= bfd_getb32 (l
->addr
);
2813 vallo
= bfd_getb32 ((bfd_byte
*) data
+ reloc_entry
->address
);
2815 switch (reloc_entry
->howto
->type
)
2817 case R_NDS32_LO12S3
:
2821 case R_NDS32_LO12S2
:
2825 case R_NDS32_LO12S1
:
2829 case R_NDS32_LO12S0
:
2834 val
= ((insn
& 0xfffff) << 12) + vallo
;
2837 insn
= (insn
& ~(bfd_vma
) 0xfffff) | ((val
>> 12) & 0xfffff);
2838 bfd_putb32 ((bfd_vma
) insn
, l
->addr
);
2845 nds32_hi20_list
= NULL
;
2848 /* Now do the LO12 reloc in the usual way.
2849 ??? It would be nice to call bfd_elf_generic_reloc here,
2850 but we have partial_inplace set. bfd_elf_generic_reloc will
2851 pass the handling back to bfd_install_relocation which will install
2852 a section relative addend which is wrong. */
2853 return nds32_elf_generic_reloc (input_bfd
, reloc_entry
, symbol
, data
,
2854 input_section
, output_bfd
, error_message
);
2857 /* Do generic partial_inplace relocation.
2858 This is a local replacement for bfd_elf_generic_reloc. */
2860 static bfd_reloc_status_type
2861 nds32_elf_generic_reloc (bfd
*input_bfd
, arelent
*reloc_entry
,
2862 asymbol
*symbol
, void *data
, asection
*input_section
,
2863 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2865 bfd_reloc_status_type ret
;
2867 bfd_byte
*inplace_address
;
2869 /* This part is from bfd_elf_generic_reloc.
2870 If we're relocating, and this an external symbol, we don't want
2871 to change anything. */
2872 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2873 && reloc_entry
->addend
== 0)
2875 reloc_entry
->address
+= input_section
->output_offset
;
2876 return bfd_reloc_ok
;
2879 /* Now do the reloc in the usual way.
2880 ??? It would be nice to call bfd_elf_generic_reloc here,
2881 but we have partial_inplace set. bfd_elf_generic_reloc will
2882 pass the handling back to bfd_install_relocation which will install
2883 a section relative addend which is wrong. */
2885 /* Sanity check the address (offset in section). */
2886 if (reloc_entry
->address
> bfd_get_section_limit (input_bfd
, input_section
))
2887 return bfd_reloc_outofrange
;
2890 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2891 ret
= bfd_reloc_undefined
;
2893 if (bfd_is_com_section (symbol
->section
) || output_bfd
!= (bfd
*) NULL
)
2896 relocation
= symbol
->value
;
2898 /* Only do this for a final link. */
2899 if (output_bfd
== (bfd
*) NULL
)
2901 relocation
+= symbol
->section
->output_section
->vma
;
2902 relocation
+= symbol
->section
->output_offset
;
2905 relocation
+= reloc_entry
->addend
;
2906 switch (reloc_entry
->howto
->type
)
2908 case R_NDS32_LO12S3
:
2912 case R_NDS32_LO12S2
:
2916 case R_NDS32_LO12S1
:
2920 case R_NDS32_LO12S0
:
2926 inplace_address
= (bfd_byte
*) data
+ reloc_entry
->address
;
2929 x = ((x & ~reloc_entry->howto->dst_mask) | \
2930 (((x & reloc_entry->howto->src_mask) + relocation) & \
2931 reloc_entry->howto->dst_mask))
2933 switch (reloc_entry
->howto
->size
)
2937 short x
= bfd_getb16 (inplace_address
);
2940 bfd_putb16 ((bfd_vma
) x
, inplace_address
);
2945 unsigned long x
= bfd_getb32 (inplace_address
);
2948 bfd_putb32 ((bfd_vma
) x
, inplace_address
);
2955 if (output_bfd
!= (bfd
*) NULL
)
2956 reloc_entry
->address
+= input_section
->output_offset
;
2961 /* Handle the R_NDS32_SDA15 reloc.
2962 This reloc is used to compute the address of objects in the small data area
2963 and to perform loads and stores from that area.
2964 The lower 15 bits are sign extended and added to the register specified
2965 in the instruction, which is assumed to point to _SDA_BASE_.
2967 Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on
2968 the access size, this must be taken care of. */
2970 static bfd_reloc_status_type
2971 nds32_elf_sda15_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2972 asymbol
*symbol
, void *data ATTRIBUTE_UNUSED
,
2973 asection
*input_section
, bfd
*output_bfd
,
2974 char **error_message ATTRIBUTE_UNUSED
)
2976 /* This part is from bfd_elf_generic_reloc. */
2977 if (output_bfd
!= (bfd
*) NULL
2978 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2979 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2981 reloc_entry
->address
+= input_section
->output_offset
;
2982 return bfd_reloc_ok
;
2985 if (output_bfd
!= NULL
)
2987 /* FIXME: See bfd_perform_relocation. Is this right? */
2988 return bfd_reloc_continue
;
2991 /* FIXME: not sure what to do here yet. But then again, the linker
2992 may never call us. */
2996 /* nds32_elf_ignore_reloc is the special function for
2997 relocation types which don't need to be relocated
2998 like relaxation relocation types.
2999 This function simply return bfd_reloc_ok when it is
3002 static bfd_reloc_status_type
3003 nds32_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
3004 asymbol
*symbol ATTRIBUTE_UNUSED
,
3005 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
3006 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
3008 if (output_bfd
!= NULL
)
3009 reloc_entry
->address
+= input_section
->output_offset
;
3011 return bfd_reloc_ok
;
3015 /* Map BFD reloc types to NDS32 ELF reloc types. */
3017 struct nds32_reloc_map_entry
3019 bfd_reloc_code_real_type bfd_reloc_val
;
3020 unsigned char elf_reloc_val
;
3023 static const struct nds32_reloc_map_entry nds32_reloc_map
[] =
3025 {BFD_RELOC_NONE
, R_NDS32_NONE
},
3026 {BFD_RELOC_16
, R_NDS32_16_RELA
},
3027 {BFD_RELOC_32
, R_NDS32_32_RELA
},
3028 {BFD_RELOC_VTABLE_INHERIT
, R_NDS32_RELA_GNU_VTINHERIT
},
3029 {BFD_RELOC_VTABLE_ENTRY
, R_NDS32_RELA_GNU_VTENTRY
},
3031 {BFD_RELOC_NDS32_20
, R_NDS32_20_RELA
},
3032 {BFD_RELOC_NDS32_9_PCREL
, R_NDS32_9_PCREL_RELA
},
3033 {BFD_RELOC_NDS32_WORD_9_PCREL
, R_NDS32_WORD_9_PCREL_RELA
},
3034 {BFD_RELOC_NDS32_15_PCREL
, R_NDS32_15_PCREL_RELA
},
3035 {BFD_RELOC_NDS32_17_PCREL
, R_NDS32_17_PCREL_RELA
},
3036 {BFD_RELOC_NDS32_25_PCREL
, R_NDS32_25_PCREL_RELA
},
3037 {BFD_RELOC_NDS32_HI20
, R_NDS32_HI20_RELA
},
3038 {BFD_RELOC_NDS32_LO12S3
, R_NDS32_LO12S3_RELA
},
3039 {BFD_RELOC_NDS32_LO12S2
, R_NDS32_LO12S2_RELA
},
3040 {BFD_RELOC_NDS32_LO12S1
, R_NDS32_LO12S1_RELA
},
3041 {BFD_RELOC_NDS32_LO12S0
, R_NDS32_LO12S0_RELA
},
3042 {BFD_RELOC_NDS32_LO12S0_ORI
, R_NDS32_LO12S0_ORI_RELA
},
3043 {BFD_RELOC_NDS32_SDA15S3
, R_NDS32_SDA15S3_RELA
},
3044 {BFD_RELOC_NDS32_SDA15S2
, R_NDS32_SDA15S2_RELA
},
3045 {BFD_RELOC_NDS32_SDA15S1
, R_NDS32_SDA15S1_RELA
},
3046 {BFD_RELOC_NDS32_SDA15S0
, R_NDS32_SDA15S0_RELA
},
3047 {BFD_RELOC_NDS32_SDA16S3
, R_NDS32_SDA16S3_RELA
},
3048 {BFD_RELOC_NDS32_SDA17S2
, R_NDS32_SDA17S2_RELA
},
3049 {BFD_RELOC_NDS32_SDA18S1
, R_NDS32_SDA18S1_RELA
},
3050 {BFD_RELOC_NDS32_SDA19S0
, R_NDS32_SDA19S0_RELA
},
3051 {BFD_RELOC_NDS32_GOT20
, R_NDS32_GOT20
},
3052 {BFD_RELOC_NDS32_9_PLTREL
, R_NDS32_9_PLTREL
},
3053 {BFD_RELOC_NDS32_25_PLTREL
, R_NDS32_25_PLTREL
},
3054 {BFD_RELOC_NDS32_COPY
, R_NDS32_COPY
},
3055 {BFD_RELOC_NDS32_GLOB_DAT
, R_NDS32_GLOB_DAT
},
3056 {BFD_RELOC_NDS32_JMP_SLOT
, R_NDS32_JMP_SLOT
},
3057 {BFD_RELOC_NDS32_RELATIVE
, R_NDS32_RELATIVE
},
3058 {BFD_RELOC_NDS32_GOTOFF
, R_NDS32_GOTOFF
},
3059 {BFD_RELOC_NDS32_GOTOFF_HI20
, R_NDS32_GOTOFF_HI20
},
3060 {BFD_RELOC_NDS32_GOTOFF_LO12
, R_NDS32_GOTOFF_LO12
},
3061 {BFD_RELOC_NDS32_GOTPC20
, R_NDS32_GOTPC20
},
3062 {BFD_RELOC_NDS32_GOT_HI20
, R_NDS32_GOT_HI20
},
3063 {BFD_RELOC_NDS32_GOT_LO12
, R_NDS32_GOT_LO12
},
3064 {BFD_RELOC_NDS32_GOTPC_HI20
, R_NDS32_GOTPC_HI20
},
3065 {BFD_RELOC_NDS32_GOTPC_LO12
, R_NDS32_GOTPC_LO12
},
3066 {BFD_RELOC_NDS32_INSN16
, R_NDS32_INSN16
},
3067 {BFD_RELOC_NDS32_LABEL
, R_NDS32_LABEL
},
3068 {BFD_RELOC_NDS32_LONGCALL1
, R_NDS32_LONGCALL1
},
3069 {BFD_RELOC_NDS32_LONGCALL2
, R_NDS32_LONGCALL2
},
3070 {BFD_RELOC_NDS32_LONGCALL3
, R_NDS32_LONGCALL3
},
3071 {BFD_RELOC_NDS32_LONGJUMP1
, R_NDS32_LONGJUMP1
},
3072 {BFD_RELOC_NDS32_LONGJUMP2
, R_NDS32_LONGJUMP2
},
3073 {BFD_RELOC_NDS32_LONGJUMP3
, R_NDS32_LONGJUMP3
},
3074 {BFD_RELOC_NDS32_LOADSTORE
, R_NDS32_LOADSTORE
},
3075 {BFD_RELOC_NDS32_9_FIXED
, R_NDS32_9_FIXED_RELA
},
3076 {BFD_RELOC_NDS32_15_FIXED
, R_NDS32_15_FIXED_RELA
},
3077 {BFD_RELOC_NDS32_17_FIXED
, R_NDS32_17_FIXED_RELA
},
3078 {BFD_RELOC_NDS32_25_FIXED
, R_NDS32_25_FIXED_RELA
},
3079 {BFD_RELOC_NDS32_LONGCALL4
, R_NDS32_LONGCALL4
},
3080 {BFD_RELOC_NDS32_LONGCALL5
, R_NDS32_LONGCALL5
},
3081 {BFD_RELOC_NDS32_LONGCALL6
, R_NDS32_LONGCALL6
},
3082 {BFD_RELOC_NDS32_LONGJUMP4
, R_NDS32_LONGJUMP4
},
3083 {BFD_RELOC_NDS32_LONGJUMP5
, R_NDS32_LONGJUMP5
},
3084 {BFD_RELOC_NDS32_LONGJUMP6
, R_NDS32_LONGJUMP6
},
3085 {BFD_RELOC_NDS32_LONGJUMP7
, R_NDS32_LONGJUMP7
},
3086 {BFD_RELOC_NDS32_PLTREL_HI20
, R_NDS32_PLTREL_HI20
},
3087 {BFD_RELOC_NDS32_PLTREL_LO12
, R_NDS32_PLTREL_LO12
},
3088 {BFD_RELOC_NDS32_PLT_GOTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
},
3089 {BFD_RELOC_NDS32_PLT_GOTREL_LO12
, R_NDS32_PLT_GOTREL_LO12
},
3090 {BFD_RELOC_NDS32_SDA12S2_DP
, R_NDS32_SDA12S2_DP_RELA
},
3091 {BFD_RELOC_NDS32_SDA12S2_SP
, R_NDS32_SDA12S2_SP_RELA
},
3092 {BFD_RELOC_NDS32_LO12S2_DP
, R_NDS32_LO12S2_DP_RELA
},
3093 {BFD_RELOC_NDS32_LO12S2_SP
, R_NDS32_LO12S2_SP_RELA
},
3094 {BFD_RELOC_NDS32_DWARF2_OP1
, R_NDS32_DWARF2_OP1_RELA
},
3095 {BFD_RELOC_NDS32_DWARF2_OP2
, R_NDS32_DWARF2_OP2_RELA
},
3096 {BFD_RELOC_NDS32_DWARF2_LEB
, R_NDS32_DWARF2_LEB_RELA
},
3097 {BFD_RELOC_NDS32_UPDATE_TA
, R_NDS32_UPDATE_TA_RELA
},
3098 {BFD_RELOC_NDS32_PLT_GOTREL_LO20
, R_NDS32_PLT_GOTREL_LO20
},
3099 {BFD_RELOC_NDS32_PLT_GOTREL_LO15
, R_NDS32_PLT_GOTREL_LO15
},
3100 {BFD_RELOC_NDS32_PLT_GOTREL_LO19
, R_NDS32_PLT_GOTREL_LO19
},
3101 {BFD_RELOC_NDS32_GOT_LO15
, R_NDS32_GOT_LO15
},
3102 {BFD_RELOC_NDS32_GOT_LO19
, R_NDS32_GOT_LO19
},
3103 {BFD_RELOC_NDS32_GOTOFF_LO15
, R_NDS32_GOTOFF_LO15
},
3104 {BFD_RELOC_NDS32_GOTOFF_LO19
, R_NDS32_GOTOFF_LO19
},
3105 {BFD_RELOC_NDS32_GOT15S2
, R_NDS32_GOT15S2_RELA
},
3106 {BFD_RELOC_NDS32_GOT17S2
, R_NDS32_GOT17S2_RELA
},
3107 {BFD_RELOC_NDS32_5
, R_NDS32_5_RELA
},
3108 {BFD_RELOC_NDS32_10_UPCREL
, R_NDS32_10_UPCREL_RELA
},
3109 {BFD_RELOC_NDS32_SDA_FP7U2_RELA
, R_NDS32_SDA_FP7U2_RELA
},
3110 {BFD_RELOC_NDS32_RELAX_ENTRY
, R_NDS32_RELAX_ENTRY
},
3111 {BFD_RELOC_NDS32_GOT_SUFF
, R_NDS32_GOT_SUFF
},
3112 {BFD_RELOC_NDS32_GOTOFF_SUFF
, R_NDS32_GOTOFF_SUFF
},
3113 {BFD_RELOC_NDS32_PLT_GOT_SUFF
, R_NDS32_PLT_GOT_SUFF
},
3114 {BFD_RELOC_NDS32_MULCALL_SUFF
, R_NDS32_MULCALL_SUFF
},
3115 {BFD_RELOC_NDS32_PTR
, R_NDS32_PTR
},
3116 {BFD_RELOC_NDS32_PTR_COUNT
, R_NDS32_PTR_COUNT
},
3117 {BFD_RELOC_NDS32_PTR_RESOLVED
, R_NDS32_PTR_RESOLVED
},
3118 {BFD_RELOC_NDS32_PLTBLOCK
, R_NDS32_PLTBLOCK
},
3119 {BFD_RELOC_NDS32_RELAX_REGION_BEGIN
, R_NDS32_RELAX_REGION_BEGIN
},
3120 {BFD_RELOC_NDS32_RELAX_REGION_END
, R_NDS32_RELAX_REGION_END
},
3121 {BFD_RELOC_NDS32_MINUEND
, R_NDS32_MINUEND
},
3122 {BFD_RELOC_NDS32_SUBTRAHEND
, R_NDS32_SUBTRAHEND
},
3123 {BFD_RELOC_NDS32_DIFF8
, R_NDS32_DIFF8
},
3124 {BFD_RELOC_NDS32_DIFF16
, R_NDS32_DIFF16
},
3125 {BFD_RELOC_NDS32_DIFF32
, R_NDS32_DIFF32
},
3126 {BFD_RELOC_NDS32_DIFF_ULEB128
, R_NDS32_DIFF_ULEB128
},
3127 {BFD_RELOC_NDS32_EMPTY
, R_NDS32_EMPTY
},
3128 {BFD_RELOC_NDS32_25_ABS
, R_NDS32_25_ABS_RELA
},
3129 {BFD_RELOC_NDS32_DATA
, R_NDS32_DATA
},
3130 {BFD_RELOC_NDS32_TRAN
, R_NDS32_TRAN
},
3131 {BFD_RELOC_NDS32_17IFC_PCREL
, R_NDS32_17IFC_PCREL_RELA
},
3132 {BFD_RELOC_NDS32_10IFCU_PCREL
, R_NDS32_10IFCU_PCREL_RELA
},
3134 {BFD_RELOC_NDS32_TPOFF
, R_NDS32_TLS_TPOFF
},
3135 /* Missing: BFD_RELOC_NDS32_GOTTPOFF. */
3136 {BFD_RELOC_NDS32_TLS_LE_HI20
, R_NDS32_TLS_LE_HI20
},
3137 {BFD_RELOC_NDS32_TLS_LE_LO12
, R_NDS32_TLS_LE_LO12
},
3138 {BFD_RELOC_NDS32_TLS_LE_20
, R_NDS32_TLS_LE_20
},
3139 {BFD_RELOC_NDS32_TLS_LE_15S0
, R_NDS32_TLS_LE_15S0
},
3140 {BFD_RELOC_NDS32_TLS_LE_15S1
, R_NDS32_TLS_LE_15S1
},
3141 {BFD_RELOC_NDS32_TLS_LE_15S2
, R_NDS32_TLS_LE_15S2
},
3142 {BFD_RELOC_NDS32_TLS_LE_ADD
, R_NDS32_TLS_LE_ADD
},
3143 {BFD_RELOC_NDS32_TLS_LE_LS
, R_NDS32_TLS_LE_LS
},
3144 {BFD_RELOC_NDS32_TLS_IE_HI20
, R_NDS32_TLS_IE_HI20
},
3145 {BFD_RELOC_NDS32_TLS_IE_LO12
, R_NDS32_TLS_IE_LO12
},
3146 {BFD_RELOC_NDS32_TLS_IE_LO12S2
, R_NDS32_TLS_IE_LO12S2
},
3147 {BFD_RELOC_NDS32_TLS_IEGP_HI20
, R_NDS32_TLS_IEGP_HI20
},
3148 {BFD_RELOC_NDS32_TLS_IEGP_LO12
, R_NDS32_TLS_IEGP_LO12
},
3149 {BFD_RELOC_NDS32_TLS_IEGP_LO12S2
, R_NDS32_TLS_IEGP_LO12S2
},
3150 {BFD_RELOC_NDS32_TLS_IEGP_LW
, R_NDS32_TLS_IEGP_LW
},
3151 {BFD_RELOC_NDS32_TLS_DESC
, R_NDS32_TLS_DESC
},
3152 {BFD_RELOC_NDS32_TLS_DESC_HI20
, R_NDS32_TLS_DESC_HI20
},
3153 {BFD_RELOC_NDS32_TLS_DESC_LO12
, R_NDS32_TLS_DESC_LO12
},
3154 {BFD_RELOC_NDS32_TLS_DESC_20
, R_NDS32_TLS_DESC_20
},
3155 {BFD_RELOC_NDS32_TLS_DESC_SDA17S2
, R_NDS32_TLS_DESC_SDA17S2
},
3156 {BFD_RELOC_NDS32_TLS_DESC_ADD
, R_NDS32_TLS_DESC_ADD
},
3157 {BFD_RELOC_NDS32_TLS_DESC_FUNC
, R_NDS32_TLS_DESC_FUNC
},
3158 {BFD_RELOC_NDS32_TLS_DESC_CALL
, R_NDS32_TLS_DESC_CALL
},
3159 {BFD_RELOC_NDS32_TLS_DESC_MEM
, R_NDS32_TLS_DESC_MEM
},
3160 {BFD_RELOC_NDS32_REMOVE
, R_NDS32_RELAX_REMOVE
},
3161 {BFD_RELOC_NDS32_GROUP
, R_NDS32_RELAX_GROUP
},
3162 {BFD_RELOC_NDS32_LSI
, R_NDS32_LSI
},
3167 static reloc_howto_type
*
3168 bfd_elf32_bfd_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
3173 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_howto_table
); i
++)
3174 if (nds32_elf_howto_table
[i
].name
!= NULL
3175 && strcasecmp (nds32_elf_howto_table
[i
].name
, r_name
) == 0)
3176 return &nds32_elf_howto_table
[i
];
3178 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_relax_howto_table
); i
++)
3179 if (nds32_elf_relax_howto_table
[i
].name
!= NULL
3180 && strcasecmp (nds32_elf_relax_howto_table
[i
].name
, r_name
) == 0)
3181 return &nds32_elf_relax_howto_table
[i
];
3186 static reloc_howto_type
*
3187 bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code
)
3189 if (code
< R_NDS32_RELAX_ENTRY
)
3191 BFD_ASSERT (code
< ARRAY_SIZE (nds32_elf_howto_table
));
3192 return &nds32_elf_howto_table
[code
];
3196 if ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
3197 >= ARRAY_SIZE (nds32_elf_relax_howto_table
))
3203 BFD_ASSERT ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
3204 < ARRAY_SIZE (nds32_elf_relax_howto_table
));
3205 return &nds32_elf_relax_howto_table
[code
- R_NDS32_RELAX_ENTRY
];
3209 static reloc_howto_type
*
3210 bfd_elf32_bfd_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
3211 bfd_reloc_code_real_type code
)
3215 for (i
= 0; i
< ARRAY_SIZE (nds32_reloc_map
); i
++)
3217 if (nds32_reloc_map
[i
].bfd_reloc_val
== code
)
3218 return bfd_elf32_bfd_reloc_type_table_lookup
3219 (nds32_reloc_map
[i
].elf_reloc_val
);
3225 /* Set the howto pointer for an NDS32 ELF reloc. */
3228 nds32_info_to_howto_rel (bfd
*abfd
, arelent
*cache_ptr
,
3229 Elf_Internal_Rela
*dst
)
3231 enum elf_nds32_reloc_type r_type
;
3233 r_type
= ELF32_R_TYPE (dst
->r_info
);
3234 if (r_type
> R_NDS32_GNU_VTENTRY
)
3236 /* xgettext:c-format */
3237 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3239 bfd_set_error (bfd_error_bad_value
);
3243 BFD_ASSERT (ELF32_R_TYPE (dst
->r_info
) <= R_NDS32_GNU_VTENTRY
);
3244 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
3249 nds32_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
3250 Elf_Internal_Rela
*dst
)
3252 unsigned int r_type
= ELF32_R_TYPE (dst
->r_info
);
3254 if ((r_type
== R_NDS32_NONE
)
3255 || ((r_type
> R_NDS32_GNU_VTENTRY
)
3256 && (r_type
< R_NDS32_max
)))
3258 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
3262 /* xgettext:c-format */
3263 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd
, r_type
);
3264 bfd_set_error (bfd_error_bad_value
);
3268 /* Support for core dump NOTE sections.
3269 Reference to include/linux/elfcore.h in Linux. */
3272 nds32_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
3277 switch (note
->descsz
)
3280 /* Linux/NDS32 32-bit, ABI1. */
3283 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3286 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3294 /* Linux/NDS32 32-bit. */
3297 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3300 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3311 /* Make a ".reg" section. */
3312 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3313 size
, note
->descpos
+ offset
);
3317 nds32_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3319 switch (note
->descsz
)
3324 /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */
3325 elf_tdata (abfd
)->core
->program
=
3326 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
3327 elf_tdata (abfd
)->core
->command
=
3328 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
3335 /* Note that for some reason, a spurious space is tacked
3336 onto the end of the args in some (at least one anyway)
3337 implementations, so strip it off if it exists. */
3339 char *command
= elf_tdata (abfd
)->core
->command
;
3340 int n
= strlen (command
);
3342 if (0 < n
&& command
[n
- 1] == ' ')
3343 command
[n
- 1] = '\0';
3349 /* Hook called by the linker routine which adds symbols from an object
3350 file. We must handle the special NDS32 section numbers here.
3351 We also keep watching for whether we need to create the sdata special
3355 nds32_elf_add_symbol_hook (bfd
*abfd
,
3356 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3357 Elf_Internal_Sym
*sym
,
3358 const char **namep ATTRIBUTE_UNUSED
,
3359 flagword
*flagsp ATTRIBUTE_UNUSED
,
3360 asection
**secp
, bfd_vma
*valp
)
3362 switch (sym
->st_shndx
)
3365 /* Common symbols less than the GP size are automatically
3366 treated as SHN_MIPS_SCOMMON symbols. */
3367 if (sym
->st_size
> elf_gp_size (abfd
)
3368 || ELF_ST_TYPE (sym
->st_info
) == STT_TLS
)
3371 /* st_value is the alignemnt constraint.
3372 That might be its actual size if it is an array or structure. */
3373 switch (sym
->st_value
)
3376 *secp
= bfd_make_section_old_way (abfd
, ".scommon_b");
3379 *secp
= bfd_make_section_old_way (abfd
, ".scommon_h");
3382 *secp
= bfd_make_section_old_way (abfd
, ".scommon_w");
3385 *secp
= bfd_make_section_old_way (abfd
, ".scommon_d");
3391 (*secp
)->flags
|= SEC_IS_COMMON
;
3392 *valp
= sym
->st_size
;
3399 /* This function can figure out the best location for a base register to access
3400 data relative to this base register
3402 sda_d0: size of first DOUBLE WORD data section
3403 sda_w0: size of first WORD data section
3404 sda_h0: size of first HALF WORD data section
3405 sda_b : size of BYTE data section
3406 sda_hi: size of second HALF WORD data section
3407 sda_w1: size of second WORD data section
3408 sda_d1: size of second DOUBLE WORD data section
3410 offset (always positive) from the beginning of sda_d0 if OK
3411 a negative error value if fail
3413 these 7 sections have to be located back to back if exist
3414 a pass in 0 value for non-existing section */
3416 /* Due to the interpretation of simm15 field of load/store depending on
3417 data accessing size, the organization of base register relative data shall
3418 like the following figure
3419 -------------------------------------------
3420 | DOUBLE WORD sized data (range +/- 128K)
3421 -------------------------------------------
3422 | WORD sized data (range +/- 64K)
3423 -------------------------------------------
3424 | HALF WORD sized data (range +/- 32K)
3425 -------------------------------------------
3426 | BYTE sized data (range +/- 16K)
3427 -------------------------------------------
3428 | HALF WORD sized data (range +/- 32K)
3429 -------------------------------------------
3430 | WORD sized data (range +/- 64K)
3431 -------------------------------------------
3432 | DOUBLE WORD sized data (range +/- 128K)
3433 -------------------------------------------
3434 Its base register shall be set to access these data freely. */
3436 /* We have to figure out the SDA_BASE value, so that we can adjust the
3437 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
3438 BFD. If we can't find it, we're stuck. We cache it in the ELF
3439 target data. We don't need to adjust the symbol value for an
3440 external symbol if we are producing relocatable output. */
3442 static asection
*sda_rela_sec
= NULL
;
3444 #define SDA_SECTION_NUM 10
3446 static bfd_reloc_status_type
3447 nds32_elf_final_sda_base (bfd
* output_bfd
,
3448 struct bfd_link_info
* info
,
3450 bfd_boolean add_symbol
)
3453 struct elf_nds32_link_hash_table
*table
;
3454 struct bfd_link_hash_entry
*h
, *h2
;
3455 long unsigned int total
= 0;
3456 asection
*first
= NULL
, *final
= NULL
, *temp
;
3457 bfd_vma sda_base
= 0;
3459 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
3460 if (!h
|| (h
->type
!= bfd_link_hash_defined
3461 && h
->type
!= bfd_link_hash_defweak
))
3463 /* The first section must be 4-byte aligned to promise _SDA_BASE_ being
3464 4 byte-aligned. Therefore, it has to set the first section ".data"
3466 static const char sec_name
[SDA_SECTION_NUM
][10] =
3468 ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b",
3469 ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d"
3473 if (output_bfd
->sections
== NULL
)
3475 *psb
= elf_gp (output_bfd
);
3476 return bfd_reloc_ok
;
3479 /* Get the first and final section. */
3480 while (i
< ARRAY_SIZE (sec_name
))
3482 temp
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3483 if (temp
&& !first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3485 if (temp
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3488 /* Summarize the sections in order to check if joining .bss. */
3489 if (temp
&& temp
->size
!= 0)
3490 total
+= temp
->size
;
3491 else if (temp
&& temp
->rawsize
!= 0)
3492 total
+= temp
->rawsize
;
3497 /* Check .bss size. */
3498 temp
= bfd_get_section_by_name (output_bfd
, ".bss");
3501 if (temp
->size
!= 0)
3502 total
+= temp
->size
;
3503 else if (temp
->rawsize
!= 0)
3504 total
+= temp
->rawsize
;
3506 if (total
< 0x80000)
3508 if (!first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3510 if ((temp
->size
!= 0 || temp
->rawsize
!= 0))
3517 /* The middle of data region. */
3518 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3520 /* Find the section sda_base located. */
3522 while (i
< ARRAY_SIZE (sec_name
))
3524 final
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3525 if (final
&& (final
->size
!= 0 || final
->rawsize
!= 0)
3526 && sda_base
>= final
->vma
)
3537 /* If there is not any default data section in output bfd, try to find
3538 the first data section. If no data section be found, just simplily
3539 choose the first output section. */
3540 temp
= output_bfd
->sections
;
3543 if (temp
->flags
& SEC_ALLOC
3544 && (((temp
->flags
& SEC_DATA
)
3545 && ((temp
->flags
& SEC_READONLY
) == 0))
3546 || (temp
->flags
& SEC_LOAD
) == 0)
3547 && (temp
->size
!= 0 || temp
->rawsize
!= 0))
3556 /* There is no data or bss section. */
3557 if (!first
|| (first
->size
== 0 && first
->rawsize
== 0))
3559 first
= output_bfd
->sections
;
3560 while (first
&& first
->size
== 0 && first
->rawsize
== 0)
3561 first
= first
->next
;
3564 /* There is no concrete section. */
3567 *psb
= elf_gp (output_bfd
);
3568 return bfd_reloc_ok
;
3571 if (final
&& (final
->vma
+ final
->rawsize
- first
->vma
) <= 0x4000)
3572 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3574 sda_base
= first
->vma
+ 0x2000;
3577 sda_base
-= first
->vma
;
3578 sda_base
= sda_base
& (~7);
3580 if (!_bfd_generic_link_add_one_symbol
3581 (info
, output_bfd
, "_SDA_BASE_", BSF_GLOBAL
| BSF_WEAK
, first
,
3582 (bfd_vma
) sda_base
, (const char *) NULL
, FALSE
,
3583 get_elf_backend_data (output_bfd
)->collect
, &h
))
3586 sda_rela_sec
= first
;
3589 /* Set _FP_BASE_ to _SDA_BASE_. */
3590 table
= nds32_elf_hash_table (info
);
3591 relax_fp_as_gp
= table
->relax_fp_as_gp
;
3592 h2
= bfd_link_hash_lookup (info
->hash
, FP_BASE_NAME
, FALSE
, FALSE
, FALSE
);
3593 /* _SDA_BASE_ is difined in linker script. */
3596 first
= h
->u
.def
.section
;
3597 sda_base
= h
->u
.def
.value
;
3600 if (relax_fp_as_gp
&& h2
3601 && (h2
->type
== bfd_link_hash_undefweak
3602 || h2
->type
== bfd_link_hash_undefined
))
3604 /* Define a weak FP_BASE_NAME here to prevent the undefined symbol.
3605 And set FP equal to SDA_BASE to do relaxation for
3606 la $fp, _FP_BASE_. */
3607 if (!_bfd_generic_link_add_one_symbol
3608 (info
, output_bfd
, FP_BASE_NAME
, BSF_GLOBAL
| BSF_WEAK
,
3609 first
, sda_base
, (const char *) NULL
,
3610 FALSE
, get_elf_backend_data (output_bfd
)->collect
, &h2
))
3619 elf_gp (output_bfd
) = (h
->u
.def
.value
3620 + h
->u
.def
.section
->output_section
->vma
3621 + h
->u
.def
.section
->output_offset
);
3625 _bfd_error_handler (_("error: can't find symbol: %s"), "_SDA_BASE_");
3626 return bfd_reloc_dangerous
;
3630 *psb
= h
->u
.def
.value
3631 + h
->u
.def
.section
->output_section
->vma
3632 + h
->u
.def
.section
->output_offset
;
3633 return bfd_reloc_ok
;
3637 /* Return size of a PLT entry. */
3638 #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE
3640 /* Create an entry in an nds32 ELF linker hash table. */
3642 static struct bfd_hash_entry
*
3643 nds32_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3644 struct bfd_hash_table
*table
,
3647 struct elf_nds32_link_hash_entry
*ret
;
3649 ret
= (struct elf_nds32_link_hash_entry
*) entry
;
3651 /* Allocate the structure if it has not already been allocated by a
3654 ret
= (struct elf_nds32_link_hash_entry
*)
3655 bfd_hash_allocate (table
, sizeof (struct elf_nds32_link_hash_entry
));
3658 return (struct bfd_hash_entry
*) ret
;
3660 /* Call the allocation method of the superclass. */
3661 ret
= (struct elf_nds32_link_hash_entry
*)
3662 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
);
3666 struct elf_nds32_link_hash_entry
*eh
;
3668 eh
= (struct elf_nds32_link_hash_entry
*) ret
;
3669 eh
->tls_type
= GOT_UNKNOWN
;
3670 eh
->offset_to_gp
= 0;
3673 return (struct bfd_hash_entry
*) ret
;
3676 /* Create an nds32 ELF linker hash table. */
3678 static struct bfd_link_hash_table
*
3679 nds32_elf_link_hash_table_create (bfd
*abfd
)
3681 struct elf_nds32_link_hash_table
*ret
;
3683 size_t amt
= sizeof (struct elf_nds32_link_hash_table
);
3685 ret
= (struct elf_nds32_link_hash_table
*) bfd_zmalloc (amt
);
3690 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
3691 nds32_elf_link_hash_newfunc
,
3692 sizeof (struct elf_nds32_link_hash_entry
),
3699 ret
->sdynbss
= NULL
;
3700 ret
->srelbss
= NULL
;
3701 ret
->sym_ld_script
= NULL
;
3703 return &ret
->root
.root
;
3706 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3707 shortcuts to them in our hash table. */
3710 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
3712 struct elf_link_hash_table
*ehtab
;
3714 if (!_bfd_elf_create_got_section (dynobj
, info
))
3717 ehtab
= elf_hash_table (info
);
3718 ehtab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3719 ehtab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3720 if (!ehtab
->sgot
|| !ehtab
->sgotplt
)
3723 /* _bfd_elf_create_got_section will create it for us. */
3724 ehtab
->srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3725 if (ehtab
->srelgot
== NULL
3726 || !bfd_set_section_flags (ehtab
->srelgot
,
3727 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3728 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3730 || !bfd_set_section_alignment (ehtab
->srelgot
, 2))
3736 /* Create dynamic sections when linking against a dynamic object. */
3739 nds32_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3741 struct elf_link_hash_table
*ehtab
;
3742 struct elf_nds32_link_hash_table
*htab
;
3743 flagword flags
, pltflags
;
3744 register asection
*s
;
3745 const struct elf_backend_data
*bed
;
3746 int ptralign
= 2; /* 32-bit */
3747 const char *secname
;
3752 bed
= get_elf_backend_data (abfd
);
3753 ehtab
= elf_hash_table (info
);
3754 htab
= nds32_elf_hash_table (info
);
3756 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3757 .rel[a].bss sections. */
3759 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3760 | SEC_LINKER_CREATED
);
3763 pltflags
|= SEC_CODE
;
3764 if (bed
->plt_not_loaded
)
3765 pltflags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
3766 if (bed
->plt_readonly
)
3767 pltflags
|= SEC_READONLY
;
3769 s
= bfd_make_section (abfd
, ".plt");
3772 || !bfd_set_section_flags (s
, pltflags
)
3773 || !bfd_set_section_alignment (s
, bed
->plt_alignment
))
3776 if (bed
->want_plt_sym
)
3778 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3780 struct bfd_link_hash_entry
*bh
= NULL
;
3781 struct elf_link_hash_entry
*h
;
3783 if (!(_bfd_generic_link_add_one_symbol
3784 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3785 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
3786 get_elf_backend_data (abfd
)->collect
, &bh
)))
3789 h
= (struct elf_link_hash_entry
*) bh
;
3791 h
->type
= STT_OBJECT
;
3793 if (bfd_link_pic (info
) && !bfd_elf_link_record_dynamic_symbol (info
, h
))
3797 s
= bfd_make_section (abfd
,
3798 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3801 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3802 || !bfd_set_section_alignment (s
, ptralign
))
3805 if (ehtab
->sgot
== NULL
&& !create_got_section (abfd
, info
))
3808 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3810 secflags
= bfd_section_flags (sec
);
3811 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3812 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3814 secname
= bfd_section_name (sec
);
3815 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
3816 strcpy (relname
, ".rela");
3817 strcat (relname
, secname
);
3818 if (bfd_get_section_by_name (abfd
, secname
))
3820 s
= bfd_make_section (abfd
, relname
);
3822 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3823 || !bfd_set_section_alignment (s
, ptralign
))
3827 if (bed
->want_dynbss
)
3829 /* The .dynbss section is a place to put symbols which are defined
3830 by dynamic objects, are referenced by regular objects, and are
3831 not functions. We must allocate space for them in the process
3832 image and use a R_*_COPY reloc to tell the dynamic linker to
3833 initialize them at run time. The linker script puts the .dynbss
3834 section into the .bss section of the final image. */
3835 s
= bfd_make_section (abfd
, ".dynbss");
3838 || !bfd_set_section_flags (s
, SEC_ALLOC
| SEC_LINKER_CREATED
))
3840 /* The .rel[a].bss section holds copy relocs. This section is not
3841 normally needed. We need to create it here, though, so that the
3842 linker will map it to an output section. We can't just create it
3843 only if we need it, because we will not know whether we need it
3844 until we have seen all the input files, and the first time the
3845 main linker code calls BFD after examining all the input files
3846 (size_dynamic_sections) the input sections have already been
3847 mapped to the output sections. If the section turns out not to
3848 be needed, we can discard it later. We will never need this
3849 section when generating a shared object, since they do not use
3851 if (!bfd_link_pic (info
))
3853 s
= bfd_make_section (abfd
, (bed
->default_use_rela_p
3854 ? ".rela.bss" : ".rel.bss"));
3857 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3858 || !bfd_set_section_alignment (s
, ptralign
))
3866 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3868 nds32_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3869 struct elf_link_hash_entry
*dir
,
3870 struct elf_link_hash_entry
*ind
)
3872 struct elf_nds32_link_hash_entry
*edir
, *eind
;
3874 edir
= (struct elf_nds32_link_hash_entry
*) dir
;
3875 eind
= (struct elf_nds32_link_hash_entry
*) ind
;
3877 if (ind
->root
.type
== bfd_link_hash_indirect
)
3879 if (dir
->got
.refcount
<= 0)
3881 edir
->tls_type
= eind
->tls_type
;
3882 eind
->tls_type
= GOT_UNKNOWN
;
3886 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3889 /* Adjust a symbol defined by a dynamic object and referenced by a
3890 regular object. The current definition is in some section of the
3891 dynamic object, but we're not including those sections. We have to
3892 change the definition to something the rest of the link can
3896 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3897 struct elf_link_hash_entry
*h
)
3899 struct elf_nds32_link_hash_table
*htab
;
3902 unsigned int power_of_two
;
3904 dynobj
= elf_hash_table (info
)->dynobj
;
3906 /* Make sure we know what is going on here. */
3907 BFD_ASSERT (dynobj
!= NULL
3910 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
3913 /* If this is a function, put it in the procedure linkage table. We
3914 will fill in the contents of the procedure linkage table later,
3915 when we know the address of the .got section. */
3916 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
3918 if (!bfd_link_pic (info
)
3921 && h
->root
.type
!= bfd_link_hash_undefweak
3922 && h
->root
.type
!= bfd_link_hash_undefined
)
3924 /* This case can occur if we saw a PLT reloc in an input
3925 file, but the symbol was never referred to by a dynamic
3926 object. In such a case, we don't actually need to build
3927 a procedure linkage table, and we can just do a PCREL
3929 h
->plt
.offset
= (bfd_vma
) - 1;
3936 h
->plt
.offset
= (bfd_vma
) - 1;
3938 /* If this is a weak symbol, and there is a real definition, the
3939 processor independent code will have arranged for us to see the
3940 real definition first, and we can just use the same value. */
3941 if (h
->is_weakalias
)
3943 struct elf_link_hash_entry
*def
= weakdef (h
);
3944 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
3945 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
3946 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
3950 /* This is a reference to a symbol defined by a dynamic object which
3951 is not a function. */
3953 /* If we are creating a shared library, we must presume that the
3954 only references to the symbol are via the global offset table.
3955 For such cases we need not do anything here; the relocations will
3956 be handled correctly by relocate_section. */
3957 if (bfd_link_pic (info
))
3960 /* If there are no references to this symbol that do not use the
3961 GOT, we don't need to generate a copy reloc. */
3962 if (!h
->non_got_ref
)
3965 /* If -z nocopyreloc was given, we won't generate them either. */
3966 if (0 && info
->nocopyreloc
)
3972 /* If we don't find any dynamic relocs in read-only sections, then
3973 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
3974 if (!_bfd_elf_readonly_dynrelocs (h
))
3980 /* We must allocate the symbol in our .dynbss section, which will
3981 become part of the .bss section of the executable. There will be
3982 an entry for this symbol in the .dynsym section. The dynamic
3983 object will contain position independent code, so all references
3984 from the dynamic object to this symbol will go through the global
3985 offset table. The dynamic linker will use the .dynsym entry to
3986 determine the address it must put in the global offset table, so
3987 both the dynamic object and the regular object will refer to the
3988 same memory location for the variable. */
3990 htab
= nds32_elf_hash_table (info
);
3992 BFD_ASSERT (s
!= NULL
);
3994 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
3995 to copy the initial value out of the dynamic object and into the
3996 runtime process image. We need to remember the offset into the
3997 .rela.bss section we are going to use. */
3998 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4002 srel
= htab
->srelbss
;
4003 BFD_ASSERT (srel
!= NULL
);
4004 srel
->size
+= sizeof (Elf32_External_Rela
);
4008 /* We need to figure out the alignment required for this symbol. I
4009 have no idea how ELF linkers handle this. */
4010 power_of_two
= bfd_log2 (h
->size
);
4011 if (power_of_two
> 3)
4014 /* Apply the required alignment. */
4015 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
4016 if (power_of_two
> bfd_section_alignment (s
))
4018 if (!bfd_set_section_alignment (s
, power_of_two
))
4022 /* Define the symbol as being at this point in the section. */
4023 h
->root
.u
.def
.section
= s
;
4024 h
->root
.u
.def
.value
= s
->size
;
4026 /* Increment the section size to make room for the symbol. */
4032 /* Allocate space in .plt, .got and associated reloc sections for
4036 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
4038 struct bfd_link_info
*info
;
4039 struct elf_link_hash_table
*ehtab
;
4040 struct elf_nds32_link_hash_table
*htab
;
4041 struct elf_dyn_relocs
*p
;
4043 if (h
->root
.type
== bfd_link_hash_indirect
)
4046 /* When warning symbols are created, they **replace** the "real"
4047 entry in the hash table, thus we never get to see the real
4048 symbol in a hash traversal. So look at it now. */
4049 if (h
->root
.type
== bfd_link_hash_warning
)
4050 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4052 info
= (struct bfd_link_info
*) inf
;
4053 ehtab
= elf_hash_table (info
);
4054 htab
= nds32_elf_hash_table (info
);
4058 if ((htab
->root
.dynamic_sections_created
|| h
->type
== STT_GNU_IFUNC
)
4059 && h
->plt
.refcount
> 0
4060 && !(bfd_link_pie (info
) && h
->def_regular
))
4062 /* Make sure this symbol is output as a dynamic symbol.
4063 Undefined weak syms won't yet be marked as dynamic. */
4064 if (h
->dynindx
== -1 && !h
->forced_local
)
4066 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4070 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
4072 asection
*s
= ehtab
->splt
;
4074 /* If this is the first .plt entry, make room for the special
4077 s
->size
+= PLT_ENTRY_SIZE
;
4079 h
->plt
.offset
= s
->size
;
4081 /* If this symbol is not defined in a regular file, and we are
4082 not generating a shared library, then set the symbol to this
4083 location in the .plt. This is required to make function
4084 pointers compare as equal between the normal executable and
4085 the shared library. */
4086 if (!bfd_link_pic (info
) && !h
->def_regular
)
4088 h
->root
.u
.def
.section
= s
;
4089 h
->root
.u
.def
.value
= h
->plt
.offset
;
4092 /* Make room for this entry. */
4093 s
->size
+= PLT_ENTRY_SIZE
;
4095 /* We also need to make an entry in the .got.plt section, which
4096 will be placed in the .got section by the linker script. */
4097 ehtab
->sgotplt
->size
+= 4;
4099 /* We also need to make an entry in the .rel.plt section. */
4100 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4101 if (htab
->tls_desc_trampoline
)
4102 htab
->next_tls_desc_index
++;
4106 h
->plt
.offset
= (bfd_vma
) - 1;
4112 h
->plt
.offset
= (bfd_vma
) - 1;
4116 if (h
->got
.refcount
> 0)
4120 int tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
4122 /* Make sure this symbol is output as a dynamic symbol.
4123 Undefined weak syms won't yet be marked as dynamic. */
4124 if (h
->dynindx
== -1 && !h
->forced_local
)
4126 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4130 sgot
= elf_hash_table (info
)->sgot
;
4131 h
->got
.offset
= sgot
->size
;
4133 if (tls_type
== GOT_UNKNOWN
)
4136 /* Non-TLS symbols, and TLS_IE need one GOT slot. */
4137 if (tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4141 /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */
4142 if (tls_type
& GOT_TLS_DESC
)
4146 dyn
= htab
->root
.dynamic_sections_created
;
4148 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
4150 if (tls_type
== GOT_TLS_DESC
&& htab
->tls_desc_trampoline
)
4152 /* TLS_DESC with trampoline needs a relocation slot
4153 within .rela.plt. */
4154 htab
->num_tls_desc
++;
4155 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4156 htab
->tls_trampoline
= -1;
4160 /* other relocations, including TLS_DESC without trampoline, need
4161 a relocation slot within .rela.got. */
4162 ehtab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
4167 h
->got
.offset
= (bfd_vma
)-1;
4169 if (h
->dyn_relocs
== NULL
)
4172 /* In the shared -Bsymbolic case, discard space allocated for
4173 dynamic pc-relative relocs against symbols which turn out to be
4174 defined in regular objects. For the normal shared case, discard
4175 space for pc-relative relocs that have become local due to symbol
4176 visibility changes. */
4178 if (bfd_link_pic (info
))
4180 if (h
->def_regular
&& (h
->forced_local
|| info
->symbolic
))
4182 struct elf_dyn_relocs
**pp
;
4184 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
;)
4186 p
->count
-= p
->pc_count
;
4197 /* For the non-shared case, discard space for relocs against
4198 symbols which turn out to need copy relocs or are not dynamic. */
4203 || (htab
->root
.dynamic_sections_created
4204 && (h
->root
.type
== bfd_link_hash_undefweak
4205 || h
->root
.type
== bfd_link_hash_undefined
))))
4207 /* Make sure this symbol is output as a dynamic symbol.
4208 Undefined weak syms won't yet be marked as dynamic. */
4209 if (h
->dynindx
== -1 && !h
->forced_local
)
4211 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4215 /* If that succeeded, we know we'll be keeping all the
4217 if (h
->dynindx
!= -1)
4221 h
->dyn_relocs
= NULL
;
4226 /* Finally, allocate space. */
4227 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4229 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4230 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4236 /* Add relocation REL to the end of relocation section SRELOC. */
4239 elf32_nds32_add_dynreloc (bfd
*output_bfd
,
4240 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4241 asection
*sreloc
, Elf_Internal_Rela
*rel
)
4247 loc
= sreloc
->contents
;
4248 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4249 if (sreloc
->reloc_count
* sizeof (Elf32_External_Rela
) > sreloc
->size
)
4252 bfd_elf32_swap_reloca_out (output_bfd
, rel
, loc
);
4255 /* Set the sizes of the dynamic sections. */
4258 nds32_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
4259 struct bfd_link_info
*info
)
4261 struct elf_nds32_link_hash_table
*htab
;
4268 htab
= nds32_elf_hash_table (info
);
4272 dynobj
= elf_hash_table (info
)->dynobj
;
4273 BFD_ASSERT (dynobj
!= NULL
);
4275 if (elf_hash_table (info
)->dynamic_sections_created
)
4277 /* Set the contents of the .interp section to the interpreter. */
4278 if (bfd_link_executable (info
) && !info
->nointerp
)
4280 s
= bfd_get_section_by_name (dynobj
, ".interp");
4281 BFD_ASSERT (s
!= NULL
);
4282 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
4283 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
4287 /* Set up .got offsets for local syms, and space for local dynamic
4289 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
4291 bfd_signed_vma
*local_got
;
4292 bfd_signed_vma
*end_local_got
;
4293 bfd_size_type locsymcount
;
4294 Elf_Internal_Shdr
*symtab_hdr
;
4296 char *local_tls_type
;
4297 unsigned long symndx
;
4298 bfd_vma
*local_tlsdesc_gotent
;
4300 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4303 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4305 struct elf_dyn_relocs
*p
;
4307 for (p
= ((struct elf_dyn_relocs
*)
4308 elf_section_data (s
)->local_dynrel
);
4309 p
!= NULL
; p
= p
->next
)
4311 if (!bfd_is_abs_section (p
->sec
)
4312 && bfd_is_abs_section (p
->sec
->output_section
))
4314 /* Input section has been discarded, either because
4315 it is a copy of a linkonce section or due to
4316 linker script /DISCARD/, so we'll be discarding
4319 else if (p
->count
!= 0)
4321 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4322 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4323 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4324 info
->flags
|= DF_TEXTREL
;
4329 local_got
= elf_local_got_refcounts (ibfd
);
4333 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4334 locsymcount
= symtab_hdr
->sh_info
;
4335 end_local_got
= local_got
+ locsymcount
;
4336 sgot
= elf_hash_table (info
)->sgot
;
4337 local_tls_type
= elf32_nds32_local_got_tls_type (ibfd
);
4338 local_tlsdesc_gotent
= elf32_nds32_local_tlsdesc_gotent (ibfd
);
4339 for (symndx
= 0; local_got
< end_local_got
;
4340 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
, ++symndx
)
4344 int num_of_got_entry_needed
= 0;
4345 *local_got
= sgot
->size
;
4346 *local_tlsdesc_gotent
= sgot
->size
;
4348 /* TLS_NORMAL, and TLS_IE need one slot in .got. */
4349 if (*local_tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4350 num_of_got_entry_needed
= 1;
4351 /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */
4352 else if (*local_tls_type
& GOT_TLS_DESC
)
4353 num_of_got_entry_needed
= 2;
4355 sgot
->size
+= (num_of_got_entry_needed
<< 2);
4357 /* non-relax-able TLS_DESCs need a slot in .rela.plt.
4358 others need a slot in .rela.got. */
4359 if (*local_tls_type
== GOT_TLS_DESC
)
4361 if (bfd_link_pic (info
))
4363 if (htab
->tls_desc_trampoline
)
4365 htab
->num_tls_desc
++;
4366 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
4367 htab
->tls_trampoline
= -1;
4370 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4374 /* TLS_DESC -> TLS_LE */
4379 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4384 *local_got
= (bfd_vma
) -1;
4385 *local_tlsdesc_gotent
= (bfd_vma
) -1;
4390 /* Allocate global sym .plt and .got entries, and space for global
4391 sym dynamic relocs. */
4392 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4394 /* For every jump slot reserved in the sgotplt, reloc_count is
4395 incremented. However, when we reserve space for TLS descriptors,
4396 it's not incremented, so in order to compute the space reserved
4397 for them, it suffices to multiply the reloc count by the jump
4399 if (htab
->tls_desc_trampoline
&& htab
->root
.srelplt
)
4400 htab
->sgotplt_jump_table_size
= elf32_nds32_compute_jump_table_size (htab
);
4402 if (htab
->tls_trampoline
)
4404 htab
->tls_trampoline
= htab
->root
.splt
->size
;
4406 /* If we're not using lazy TLS relocations, don't generate the
4407 PLT and GOT entries they require. */
4408 if (!(info
->flags
& DF_BIND_NOW
))
4410 htab
->dt_tlsdesc_got
= htab
->root
.sgot
->size
;
4411 htab
->root
.sgot
->size
+= 4;
4413 htab
->dt_tlsdesc_plt
= htab
->root
.splt
->size
;
4414 htab
->root
.splt
->size
+= 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
);
4418 /* We now have determined the sizes of the various dynamic sections.
4419 Allocate memory for them. */
4420 /* The check_relocs and adjust_dynamic_symbol entry points have
4421 determined the sizes of the various dynamic sections. Allocate
4425 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
4427 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
4430 if (s
== htab
->root
.splt
)
4432 /* Strip this section if we don't need it; see the
4436 else if (s
== elf_hash_table (info
)->sgot
)
4438 got_size
+= s
->size
;
4440 else if (s
== elf_hash_table (info
)->sgotplt
)
4442 got_size
+= s
->size
;
4444 else if (strncmp (bfd_section_name (s
), ".rela", 5) == 0)
4446 if (s
->size
!= 0 && s
!= elf_hash_table (info
)->srelplt
)
4449 /* We use the reloc_count field as a counter if we need
4450 to copy relocs into the output file. */
4455 /* It's not one of our sections, so don't allocate space. */
4461 /* If we don't need this section, strip it from the
4462 output file. This is mostly to handle .rela.bss and
4463 .rela.plt. We must create both sections in
4464 create_dynamic_sections, because they must be created
4465 before the linker maps input sections to output
4466 sections. The linker does that before
4467 adjust_dynamic_symbol is called, and it is that
4468 function which decides whether anything needs to go
4469 into these sections. */
4470 s
->flags
|= SEC_EXCLUDE
;
4474 /* Allocate memory for the section contents. We use bfd_zalloc
4475 here in case unused entries are not reclaimed before the
4476 section's contents are written out. This should not happen,
4477 but this way if it does, we get a R_NDS32_NONE reloc instead
4479 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
4480 if (s
->contents
== NULL
)
4485 if (htab
->root
.dynamic_sections_created
)
4487 /* Add some entries to the .dynamic section. We fill in the
4488 values later, in nds32_elf_finish_dynamic_sections, but we
4489 must add the entries now so that we get the correct size for
4490 the .dynamic section. The DT_DEBUG entry is filled in by the
4491 dynamic linker and used by the debugger. */
4492 #define add_dynamic_entry(TAG, VAL) \
4493 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4495 if (bfd_link_executable (info
))
4497 if (!add_dynamic_entry (DT_DEBUG
, 0))
4501 if (elf_hash_table (info
)->splt
->size
!= 0)
4503 if (!add_dynamic_entry (DT_PLTGOT
, 0)
4504 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
4505 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
4506 || !add_dynamic_entry (DT_JMPREL
, 0))
4510 if (htab
->tls_desc_trampoline
&& plt
)
4512 if (htab
->dt_tlsdesc_plt
4513 && (!add_dynamic_entry (DT_TLSDESC_PLT
, 0)
4514 || !add_dynamic_entry (DT_TLSDESC_GOT
, 0)))
4520 if (!add_dynamic_entry (DT_RELA
, 0)
4521 || !add_dynamic_entry (DT_RELASZ
, 0)
4522 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
4525 /* If any dynamic relocs apply to a read-only section,
4526 then we need a DT_TEXTREL entry. */
4527 if ((info
->flags
& DF_TEXTREL
) == 0)
4528 elf_link_hash_traverse (&htab
->root
,
4529 _bfd_elf_maybe_set_textrel
,
4532 if ((info
->flags
& DF_TEXTREL
) != 0)
4534 if (!add_dynamic_entry (DT_TEXTREL
, 0))
4539 #undef add_dynamic_entry
4544 static bfd_reloc_status_type
4545 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4546 bfd_vma relocation
, bfd_byte
*location
)
4550 bfd_reloc_status_type flag
;
4551 unsigned int rightshift
= howto
->rightshift
;
4552 unsigned int bitpos
= howto
->bitpos
;
4554 /* If the size is negative, negate RELOCATION. This isn't very
4556 if (howto
->size
< 0)
4557 relocation
= -relocation
;
4559 /* Get the value we are going to relocate. */
4560 size
= bfd_get_reloc_size (howto
);
4567 return bfd_reloc_ok
;
4569 x
= bfd_getb16 (location
);
4572 x
= bfd_getb32 (location
);
4576 /* Check for overflow. FIXME: We may drop bits during the addition
4577 which we don't check for. We must either check at every single
4578 operation, which would be tedious, or we must do the computations
4579 in a type larger than bfd_vma, which would be inefficient. */
4580 flag
= bfd_reloc_ok
;
4581 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4583 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4586 /* Get the values to be added together. For signed and unsigned
4587 relocations, we assume that all values should be truncated to
4588 the size of an address. For bitfields, all the bits matter.
4589 See also bfd_check_overflow. */
4590 fieldmask
= N_ONES (howto
->bitsize
);
4591 signmask
= ~fieldmask
;
4592 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4593 a
= (relocation
& addrmask
) >> rightshift
;
4594 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4596 switch (howto
->complain_on_overflow
)
4598 case complain_overflow_signed
:
4599 /* If any sign bits are set, all sign bits must be set.
4600 That is, A must be a valid negative address after
4602 signmask
= ~(fieldmask
>> 1);
4605 case complain_overflow_bitfield
:
4606 /* Much like the signed check, but for a field one bit
4607 wider. We allow a bitfield to represent numbers in the
4608 range -2**n to 2**n-1, where n is the number of bits in the
4609 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4610 can't overflow, which is exactly what we want. */
4612 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4613 flag
= bfd_reloc_overflow
;
4615 /* We only need this next bit of code if the sign bit of B
4616 is below the sign bit of A. This would only happen if
4617 SRC_MASK had fewer bits than BITSIZE. Note that if
4618 SRC_MASK has more bits than BITSIZE, we can get into
4619 trouble; we would need to verify that B is in range, as
4620 we do for A above. */
4621 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4624 /* Set all the bits above the sign bit. */
4627 /* Now we can do the addition. */
4630 /* See if the result has the correct sign. Bits above the
4631 sign bit are junk now; ignore them. If the sum is
4632 positive, make sure we did not have all negative inputs;
4633 if the sum is negative, make sure we did not have all
4634 positive inputs. The test below looks only at the sign
4635 bits, and it really just
4636 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4638 We mask with addrmask here to explicitly allow an address
4639 wrap-around. The Linux kernel relies on it, and it is
4640 the only way to write assembler code which can run when
4641 loaded at a location 0x80000000 away from the location at
4642 which it is linked. */
4643 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4644 flag
= bfd_reloc_overflow
;
4648 case complain_overflow_unsigned
:
4649 /* Checking for an unsigned overflow is relatively easy:
4650 trim the addresses and add, and trim the result as well.
4651 Overflow is normally indicated when the result does not
4652 fit in the field. However, we also need to consider the
4653 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4654 input is 0x80000000, and bfd_vma is only 32 bits; then we
4655 will get sum == 0, but there is an overflow, since the
4656 inputs did not fit in the field. Instead of doing a
4657 separate test, we can check for this by or-ing in the
4658 operands when testing for the sum overflowing its final
4660 sum
= (a
+ b
) & addrmask
;
4661 if ((a
| b
| sum
) & signmask
)
4662 flag
= bfd_reloc_overflow
;
4670 /* Put RELOCATION in the right bits. */
4671 relocation
>>= (bfd_vma
) rightshift
;
4672 relocation
<<= (bfd_vma
) bitpos
;
4674 /* Add RELOCATION to the right bits of X. */
4676 Because the relaxation may generate duplicate relocation at one address,
4677 an addition to immediate in the instruction may cause the relocation added
4679 This bug should be fixed in assembler, but a check is also needed here. */
4680 if (howto
->partial_inplace
)
4681 x
= ((x
& ~howto
->dst_mask
)
4682 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4684 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4687 /* Put the relocated value back in the object file. */
4697 bfd_putb16 (x
, location
);
4700 bfd_putb32 (x
, location
);
4707 static bfd_reloc_status_type
4708 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4709 asection
*input_section
, bfd_byte
*contents
,
4710 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4714 /* Sanity check the address. */
4715 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4716 return bfd_reloc_outofrange
;
4718 /* This function assumes that we are dealing with a basic relocation
4719 against a symbol. We want to compute the value of the symbol to
4720 relocate to. This is just VALUE, the value of the symbol, plus
4721 ADDEND, any addend associated with the reloc. */
4722 relocation
= value
+ addend
;
4724 /* If the relocation is PC relative, we want to set RELOCATION to
4725 the distance between the symbol (currently in RELOCATION) and the
4726 location we are relocating. If pcrel_offset is FALSE we do not
4727 need to subtract out the offset of the location within the
4728 section (which is just ADDRESS). */
4729 if (howto
->pc_relative
)
4731 relocation
-= (input_section
->output_section
->vma
4732 + input_section
->output_offset
);
4733 if (howto
->pcrel_offset
)
4734 relocation
-= address
;
4737 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4738 contents
+ address
);
4742 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4744 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4745 asection
*input_sec
,
4746 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4749 FILE *sym_ld_script
= NULL
;
4750 struct elf_nds32_link_hash_table
*table
;
4752 table
= nds32_elf_hash_table (info
);
4753 sym_ld_script
= table
->sym_ld_script
;
4757 if (!h
|| !name
|| *name
== '\0')
4760 if (input_sec
->flags
& SEC_EXCLUDE
)
4763 if (!check_start_export_sym
)
4765 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4766 check_start_export_sym
= 1;
4769 if (h
->root
.type
== bfd_link_hash_defined
4770 || h
->root
.type
== bfd_link_hash_defweak
)
4772 if (!h
->root
.u
.def
.section
->output_section
)
4775 if (bfd_is_const_section (input_sec
))
4776 source
= input_sec
->name
;
4778 source
= bfd_get_filename (input_sec
->owner
);
4780 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4781 h
->root
.root
.string
,
4782 (long) (h
->root
.u
.def
.value
4783 + h
->root
.u
.def
.section
->output_section
->vma
4784 + h
->root
.u
.def
.section
->output_offset
), source
);
4790 /* Relocate an NDS32/D ELF section.
4791 There is some attempt to make this function usable for many architectures,
4792 both for RELA and REL type relocs, if only to serve as a learning tool.
4794 The RELOCATE_SECTION function is called by the new ELF backend linker
4795 to handle the relocations for a section.
4797 The relocs are always passed as Rela structures; if the section
4798 actually uses Rel structures, the r_addend field will always be
4801 This function is responsible for adjust the section contents as
4802 necessary, and (if using Rela relocs and generating a
4803 relocatable output file) adjusting the reloc addend as
4806 This function does not have to worry about setting the reloc
4807 address or the reloc symbol index.
4809 LOCAL_SYMS is a pointer to the swapped in local symbols.
4811 LOCAL_SECTIONS is an array giving the section in the input file
4812 corresponding to the st_shndx field of each local symbol.
4814 The global hash table entry for the global symbols can be found
4815 via elf_sym_hashes (input_bfd).
4817 When generating relocatable output, this function must handle
4818 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4819 going to be the section symbol corresponding to the output
4820 section, which means that the addend must be adjusted
4823 /* Return the base VMA address which should be subtracted from real addresses
4824 when resolving @dtpoff relocation.
4825 This is PT_TLS segment p_vaddr. */
4827 /* Return the relocation value for @tpoff relocation
4828 if STT_TLS virtual address is ADDRESS. */
4830 /* Return the relocation value for @gottpoff relocation
4831 if STT_TLS virtual address is ADDRESS. */
4834 gottpoff (struct bfd_link_info
*info
, bfd_vma address
)
4839 /* If tls_sec is NULL, we should have signalled an error already. */
4840 if (elf_hash_table (info
)->tls_sec
== NULL
)
4843 tp_base
= elf_hash_table (info
)->tls_sec
->vma
;
4844 tp_offset
= address
- tp_base
;
4850 patch_tls_desc_to_ie (bfd_byte
*contents
, Elf_Internal_Rela
*rel
, bfd
*ibfd
)
4852 /* TLS_GD/TLS_LD model #1
4853 46 00 00 00 sethi $r0,#0x0
4854 58 00 00 00 ori $r0,$r0,#0x0
4855 40 00 74 00 add $r0,$r0,$gp
4856 04 10 00 00 lwi $r1,[$r0+#0x0]
4857 4b e0 04 01 jral $lp,$r1 */
4859 /* TLS_GD/TLS_LD model #2
4860 46 00 00 00 sethi $r0,#0x0
4861 58 00 00 00 ori $r0,$r0,#0x0
4862 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)]
4863 40 00 74 00 add $r0,$r0,$gp
4864 4b e0 04 01 jral $lp,$r1 */
4866 /* TLS_IE model (non-PIC)
4867 46 00 00 00 sethi $r0,#0x0
4868 04 00 00 00 lwi $r0,[$r0+#0x0]
4869 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4871 /* TLS_IE model (PIC)
4872 46 00 00 00 sethi $r0,#0x0
4873 58 00 00 00 ori $r0,$r0,#0x0
4874 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)]
4875 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4877 /* TLS_GD_TO_IE model
4878 46 00 00 00 sethi $r0,#0x0
4879 58 00 00 00 ori $r0,$r0,#0x0
4880 40 00 74 00 add $r0,$rM,$gp
4881 04 00 00 01 lwi $r0,[$r0+#0x4]
4882 40 00 64 00 add $r0,$r0,$r25 */
4884 bfd_boolean rz
= FALSE
;
4894 0x40007400, /* add $r0,$rM,$gp */
4895 0x04000001, /* lwi $r0,[$r0+#0x4] */
4896 0x40006400, /* add $r0,$r0,$r25 */
4901 { 0x40000000, 0xfe0003ff },
4902 { 0x04000000, 0xfe000000 },
4903 { 0x4be00001, 0xffff83ff },
4908 { 0x38007402, 0xfe007fff },
4909 { 0x40007400, 0xfe007fff },
4910 { 0x4be00001, 0xffff83ff },
4913 unsigned char *p
= contents
+ rel
->r_offset
;
4916 uint32_t regidx
= 0;
4917 insn
= bfd_getb32 (p
);
4918 if (INSN_SETHI
== (0xfe0fffffu
& insn
))
4920 regidx
= 0x1f & (insn
>> 20);
4924 insn
= bfd_getb32 (p
);
4925 if (INSN_ORI
== (0xfe007fffu
& insn
))
4927 regidx
= 0x1f & (insn
>> 20);
4931 if (patch
[2] == bfd_getb32 (p
+ 8)) /* Character instruction. */
4933 /* already patched? */
4934 if ((patch
[0] == (0xfff07fffu
& bfd_getb32 (p
+ 0))) &&
4935 (patch
[1] == bfd_getb32 (p
+ 4)))
4938 else if (mode0
[0].opcode
== (mode0
[0].mask
& bfd_getb32 (p
+ 0)))
4940 if ((mode0
[1].opcode
== (mode0
[1].mask
& bfd_getb32 (p
+ 4))) &&
4941 (mode0
[2].opcode
== (mode0
[2].mask
& bfd_getb32 (p
+ 8))))
4943 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4944 bfd_putb32 (patch
[1], p
+ 4);
4945 bfd_putb32 (patch
[2], p
+ 8);
4949 else if (mode1
[0].opcode
== (mode1
[0].mask
& bfd_getb32 (p
+ 0)))
4951 if ((mode1
[1].opcode
== (mode1
[1].mask
& bfd_getb32 (p
+ 4))) &&
4952 (mode1
[2].opcode
== (mode1
[2].mask
& bfd_getb32 (p
+ 8))))
4954 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4955 bfd_putb32 (patch
[1], p
+ 4);
4956 bfd_putb32 (patch
[2], p
+ 8);
4963 printf ("%s: %s @ 0x%08x\n", __func__
, bfd_get_filename (ibfd
),
4964 (int) rel
->r_offset
);
4965 BFD_ASSERT(0); /* Unsupported pattern. */
4971 static enum elf_nds32_tls_type
4972 get_tls_type (enum elf_nds32_reloc_type r_type
, struct elf_link_hash_entry
*h
);
4975 ones32 (register unsigned int x
)
4977 /* 32-bit recursive reduction using SWAR...
4978 but first step is mapping 2-bit values
4979 into sum of 2 1-bit values in sneaky way. */
4980 x
-= ((x
>> 1) & 0x55555555);
4981 x
= (((x
>> 2) & 0x33333333) + (x
& 0x33333333));
4982 x
= (((x
>> 4) + x
) & 0x0f0f0f0f);
4985 return (x
& 0x0000003f);
4990 fls (register unsigned int x
)
4992 return ffs (x
& (-x
));
4994 #endif /* !HAVE_FLS */
4996 #define nds32_elf_local_tlsdesc_gotent(bfd) \
4997 (elf_nds32_tdata (bfd)->local_tlsdesc_gotent)
5000 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
5001 struct bfd_link_info
* info
,
5003 asection
* input_section
,
5004 bfd_byte
* contents
,
5005 Elf_Internal_Rela
* relocs
,
5006 Elf_Internal_Sym
* local_syms
,
5007 asection
** local_sections
)
5009 Elf_Internal_Shdr
*symtab_hdr
;
5010 struct elf_link_hash_entry
**sym_hashes
;
5011 Elf_Internal_Rela
*rel
, *relend
;
5012 bfd_boolean ret
= TRUE
; /* Assume success. */
5014 bfd_reloc_status_type r
;
5015 const char *errmsg
= NULL
;
5017 struct elf_link_hash_table
*ehtab
;
5018 struct elf_nds32_link_hash_table
*htab
;
5020 bfd_vma
*local_got_offsets
;
5021 asection
*sgot
, *splt
, *sreloc
;
5022 bfd_vma high_address
;
5023 struct elf_nds32_link_hash_table
*table
;
5024 int eliminate_gc_relocs
;
5025 bfd_vma fpbase_addr
;
5027 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
5028 sym_hashes
= elf_sym_hashes (input_bfd
);
5029 ehtab
= elf_hash_table (info
);
5030 htab
= nds32_elf_hash_table (info
);
5031 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
5033 dynobj
= htab
->root
.dynobj
;
5034 local_got_offsets
= elf_local_got_offsets (input_bfd
);
5041 relend
= relocs
+ input_section
->reloc_count
;
5043 table
= nds32_elf_hash_table (info
);
5044 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
5046 /* By this time, we can adjust the value of _SDA_BASE_. */
5047 /* Explain _SDA_BASE_ */
5048 if ((!bfd_link_relocatable (info
)))
5050 is_SDA_BASE_set
= 1;
5051 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
5052 if (r
!= bfd_reloc_ok
)
5056 /* Do TLS model conversion once at first. */
5057 nds32_elf_unify_tls_model (input_bfd
, input_section
, contents
, info
);
5059 /* Use gp as fp to prevent truncated fit. Because in relaxation time
5060 the fp value is set as gp, and it has be reverted for instruction
5062 fpbase_addr
= elf_gp (output_bfd
);
5064 /* Deal with (dynamic) relocations. */
5065 for (rel
= relocs
; rel
< relend
; rel
++)
5067 enum elf_nds32_reloc_type r_type
;
5068 reloc_howto_type
*howto
= NULL
;
5069 unsigned long r_symndx
;
5070 struct elf_link_hash_entry
*h
= NULL
;
5071 Elf_Internal_Sym
*sym
= NULL
;
5074 bfd_vma relocation_sym
= 0xdeadbeef;
5075 Elf_Internal_Rela
*lorel
;
5078 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
5079 ensure it's zero (we use REL relocs, not RELA). Therefore this
5080 should be assigning zero to `addend', but for clarity we use
5083 bfd_vma addend
= rel
->r_addend
;
5084 bfd_vma offset
= rel
->r_offset
;
5086 r_type
= ELF32_R_TYPE (rel
->r_info
);
5087 if (r_type
>= R_NDS32_max
)
5089 /* xgettext:c-format */
5090 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
5092 bfd_set_error (bfd_error_bad_value
);
5097 if (r_type
== R_NDS32_GNU_VTENTRY
5098 || r_type
== R_NDS32_GNU_VTINHERIT
5099 || r_type
== R_NDS32_NONE
5100 || r_type
== R_NDS32_RELA_GNU_VTENTRY
5101 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
5102 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
5103 || r_type
== R_NDS32_DATA
5104 || r_type
== R_NDS32_TRAN
)
5107 /* If we enter the fp-as-gp region. Resolve the address
5109 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
5110 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5114 /* Distance to relocation of best fp-base is encoded in R_SYM. */
5115 dist
= rel
->r_addend
>> 16;
5116 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
5117 local_syms
, symtab_hdr
);
5119 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
5120 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5122 fpbase_addr
= elf_gp (output_bfd
);
5125 /* Skip the relocations used for relaxation. */
5126 /* We have to update LONGCALL and LONGJUMP
5127 relocations when generating the relocatable files. */
5128 if (!bfd_link_relocatable (info
)
5129 && (r_type
>= R_NDS32_RELAX_ENTRY
5130 || (r_type
>= R_NDS32_LONGCALL4
5131 && r_type
<= R_NDS32_LONGJUMP7
)))
5134 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
5135 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5137 /* This is a final link. */
5142 if (r_symndx
< symtab_hdr
->sh_info
)
5145 sym
= local_syms
+ r_symndx
;
5146 sec
= local_sections
[r_symndx
];
5148 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
5149 addend
= rel
->r_addend
;
5151 /* keep symbol location for static TLS_IE GOT entry */
5152 relocation_sym
= relocation
;
5153 if (bfd_link_relocatable (info
))
5155 /* This is a relocatable link. We don't have to change
5156 anything, unless the reloc is against a section symbol,
5157 in which case we have to adjust according to where the
5158 section symbol winds up in the output section. */
5159 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
5160 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
5167 /* External symbol. */
5168 if (bfd_link_relocatable (info
))
5170 bfd_boolean warned
, ignored
, unresolved_reloc
;
5171 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
5173 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
5174 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
5175 relocation
, unresolved_reloc
, warned
,
5178 /* keep symbol location for static TLS_IE GOT entry */
5179 relocation_sym
= relocation
;
5181 /* la $fp, _FP_BASE_ is per-function (region).
5182 Handle it specially. */
5183 switch ((int) r_type
)
5185 case R_NDS32_HI20_RELA
:
5186 case R_NDS32_LO12S0_RELA
:
5187 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5190 if (!bfd_link_pie (info
))
5193 ("%pB: warning: _FP_BASE_ setting insns relaxation failed.",
5196 relocation
= fpbase_addr
;
5199 case R_NDS32_SDA19S0_RELA
:
5200 case R_NDS32_SDA15S0_RELA
:
5201 case R_NDS32_20_RELA
:
5202 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5205 relocation
= fpbase_addr
;
5211 /* Sanity check the address. */
5212 if (offset
> high_address
)
5214 r
= bfd_reloc_outofrange
;
5218 if (r_type
>= R_NDS32_RELAX_ENTRY
)
5221 switch ((int) r_type
)
5223 case R_NDS32_GOTOFF
:
5224 /* Relocation is relative to the start of the global offset
5225 table (for ld24 rx, #uimm24), e.g. access at label+addend
5227 ld24 rx. #label@GOTOFF + addend
5229 case R_NDS32_GOTOFF_HI20
:
5230 case R_NDS32_GOTOFF_LO12
:
5231 case R_NDS32_GOTOFF_LO15
:
5232 case R_NDS32_GOTOFF_LO19
:
5233 BFD_ASSERT (sgot
!= NULL
);
5235 relocation
-= elf_gp (output_bfd
);
5238 case R_NDS32_9_PLTREL
:
5239 case R_NDS32_25_PLTREL
:
5240 /* Relocation is to the entry for this symbol in the
5241 procedure linkage table. */
5243 /* The native assembler will generate a 25_PLTREL reloc
5244 for a local symbol if you assemble a call from one
5245 section to another when using -K pic. */
5249 if (h
->forced_local
)
5252 /* We didn't make a PLT entry for this symbol. This
5253 happens when statically linking PIC code, or when
5254 using -Bsymbolic. */
5255 if (h
->plt
.offset
== (bfd_vma
) - 1)
5258 relocation
= (splt
->output_section
->vma
5259 + splt
->output_offset
+ h
->plt
.offset
);
5262 case R_NDS32_PLT_GOTREL_HI20
:
5263 case R_NDS32_PLT_GOTREL_LO12
:
5264 case R_NDS32_PLT_GOTREL_LO15
:
5265 case R_NDS32_PLT_GOTREL_LO19
:
5266 case R_NDS32_PLT_GOTREL_LO20
:
5269 || h
->plt
.offset
== (bfd_vma
) -1
5270 || (bfd_link_pie (info
) && h
->def_regular
))
5272 /* Maybe we should find better checking to optimize
5273 PIE PLT relocations. */
5274 /* We didn't make a PLT entry for this symbol. This
5275 happens when statically linking PIC code, or when
5276 using -Bsymbolic. */
5278 h
->plt
.offset
= (bfd_vma
) -1; /* Cancel PLT trampoline. */
5279 relocation
-= elf_gp (output_bfd
);
5283 relocation
= (splt
->output_section
->vma
5284 + splt
->output_offset
+ h
->plt
.offset
);
5286 relocation
-= elf_gp (output_bfd
);
5289 case R_NDS32_PLTREL_HI20
:
5290 case R_NDS32_PLTREL_LO12
:
5292 /* Relocation is to the entry for this symbol in the
5293 procedure linkage table. */
5295 /* The native assembler will generate a 25_PLTREL reloc
5296 for a local symbol if you assemble a call from one
5297 section to another when using -K pic. */
5301 if (h
->forced_local
)
5304 if (h
->plt
.offset
== (bfd_vma
) - 1)
5305 /* We didn't make a PLT entry for this symbol. This
5306 happens when statically linking PIC code, or when
5307 using -Bsymbolic. */
5313 relocation
= (splt
->output_section
->vma
5314 + splt
->output_offset
5315 + h
->plt
.offset
+ 4)
5316 - (input_section
->output_section
->vma
5317 + input_section
->output_offset
5322 case R_NDS32_GOTPC20
:
5323 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5324 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
5325 relocation
= elf_gp (output_bfd
);
5328 case R_NDS32_GOTPC_HI20
:
5329 case R_NDS32_GOTPC_LO12
:
5330 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5332 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
5333 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
5336 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
5337 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */
5338 relocation
= elf_gp (output_bfd
);
5339 relocation
-= (input_section
->output_section
->vma
5340 + input_section
->output_offset
+ rel
->r_offset
);
5345 case R_NDS32_GOT_HI20
:
5346 case R_NDS32_GOT_LO12
:
5347 case R_NDS32_GOT_LO15
:
5348 case R_NDS32_GOT_LO19
:
5349 /* Relocation is to the entry for this symbol in the global
5351 BFD_ASSERT (sgot
!= NULL
);
5355 /* External symbol */
5358 off
= h
->got
.offset
;
5359 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5360 dyn
= htab
->root
.dynamic_sections_created
;
5361 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
5362 bfd_link_pic (info
),
5364 || (bfd_link_pic (info
)
5367 || h
->forced_local
) && h
->def_regular
))
5369 /* This is actually a static link, or it is a
5370 -Bsymbolic link and the symbol is defined
5371 locally, or the symbol was forced to be local
5372 because of a version file. We must initialize
5373 this entry in the global offset table. Since the
5374 offset must always be a multiple of 4, we use the
5375 least significant bit to record whether we have
5376 initialized it already.
5378 When doing a dynamic link, we create a .rela.got
5379 relocation entry to initialize the value. This
5380 is done in the finish_dynamic_symbol routine. */
5381 if ((off
& 1) != 0) /* clear LSB */
5385 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5389 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5390 - elf_gp (output_bfd
);
5397 BFD_ASSERT (local_got_offsets
!= NULL
5398 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5400 off
= local_got_offsets
[r_symndx
];
5402 /* The offset must always be a multiple of 4. We use
5403 the least significant bit to record whether we have
5404 already processed this entry. */
5405 if ((off
& 1) != 0) /* clear LSB */
5409 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5411 if (bfd_link_pic (info
))
5414 Elf_Internal_Rela outrel
;
5416 /* We need to generate a R_NDS32_RELATIVE reloc
5417 for the dynamic linker. */
5418 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5419 BFD_ASSERT (srelgot
!= NULL
);
5421 outrel
.r_offset
= (elf_gp (output_bfd
)
5422 + sgot
->output_offset
+ off
);
5423 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5424 outrel
.r_addend
= relocation
;
5425 loc
= srelgot
->contents
;
5427 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5428 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5429 ++srelgot
->reloc_count
;
5431 local_got_offsets
[r_symndx
] |= 1;
5433 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5434 - elf_gp (output_bfd
);
5439 case R_NDS32_16_RELA
:
5440 case R_NDS32_20_RELA
:
5441 case R_NDS32_5_RELA
:
5442 case R_NDS32_32_RELA
:
5443 case R_NDS32_9_PCREL_RELA
:
5444 case R_NDS32_WORD_9_PCREL_RELA
:
5445 case R_NDS32_10_UPCREL_RELA
:
5446 case R_NDS32_15_PCREL_RELA
:
5447 case R_NDS32_17_PCREL_RELA
:
5448 case R_NDS32_25_PCREL_RELA
:
5449 case R_NDS32_HI20_RELA
:
5450 case R_NDS32_LO12S3_RELA
:
5451 case R_NDS32_LO12S2_RELA
:
5452 case R_NDS32_LO12S2_DP_RELA
:
5453 case R_NDS32_LO12S2_SP_RELA
:
5454 case R_NDS32_LO12S1_RELA
:
5455 case R_NDS32_LO12S0_RELA
:
5456 case R_NDS32_LO12S0_ORI_RELA
:
5457 if (bfd_link_pic (info
) && r_symndx
!= 0
5458 && (input_section
->flags
& SEC_ALLOC
) != 0
5459 && (eliminate_gc_relocs
== 0
5460 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
5461 && ((r_type
!= R_NDS32_9_PCREL_RELA
5462 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
5463 && r_type
!= R_NDS32_10_UPCREL_RELA
5464 && r_type
!= R_NDS32_15_PCREL_RELA
5465 && r_type
!= R_NDS32_17_PCREL_RELA
5466 && r_type
!= R_NDS32_25_PCREL_RELA
5467 && !(r_type
== R_NDS32_32_RELA
5468 && strcmp (input_section
->name
, ".eh_frame") == 0))
5469 || (h
!= NULL
&& h
->dynindx
!= -1
5470 && (!info
->symbolic
|| !h
->def_regular
))))
5472 Elf_Internal_Rela outrel
;
5473 bfd_boolean skip
, relocate
;
5476 /* When generating a shared object, these relocations
5477 are copied into the output file to be resolved at run
5484 name
= bfd_elf_string_from_elf_section
5485 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
5486 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
5490 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
5491 && strcmp (bfd_section_name (input_section
),
5494 sreloc
= bfd_get_section_by_name (dynobj
, name
);
5495 BFD_ASSERT (sreloc
!= NULL
);
5501 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
5505 if (outrel
.r_offset
== (bfd_vma
) - 1)
5507 else if (outrel
.r_offset
== (bfd_vma
) - 2)
5508 skip
= TRUE
, relocate
= TRUE
;
5509 outrel
.r_offset
+= (input_section
->output_section
->vma
5510 + input_section
->output_offset
);
5513 memset (&outrel
, 0, sizeof outrel
);
5514 else if (r_type
== R_NDS32_17_PCREL_RELA
5515 || r_type
== R_NDS32_15_PCREL_RELA
5516 || r_type
== R_NDS32_25_PCREL_RELA
)
5518 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
5519 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5520 outrel
.r_addend
= rel
->r_addend
;
5524 /* h->dynindx may be -1 if this symbol was marked to
5527 || ((info
->symbolic
|| h
->dynindx
== -1)
5529 || (bfd_link_pie (info
) && h
->def_regular
))
5532 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5533 outrel
.r_addend
= relocation
+ rel
->r_addend
;
5537 h
->plt
.offset
= (bfd_vma
) -1; /* cancel PLT trampoline. */
5539 BFD_ASSERT (sgot
!= NULL
);
5540 /* If we did not allocate got entry for the symbol,
5541 we can not fill the nonexistent got entry. */
5542 if (h
->got
.offset
!= (bfd_vma
) -1
5543 && (h
->got
.offset
& 1) == 0)
5545 bfd_put_32 (output_bfd
, outrel
.r_addend
,
5546 sgot
->contents
+ h
->got
.offset
);
5552 if (h
->dynindx
== -1)
5555 (_("%pB: relocation %s against `%s' can not be used when "
5556 "making a shared object; recompile with -fPIC"),
5557 input_bfd
, nds32_elf_howto_table
[r_type
].name
, h
->root
.root
.string
);
5558 bfd_set_error (bfd_error_bad_value
);
5562 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5563 outrel
.r_addend
= rel
->r_addend
;
5567 loc
= sreloc
->contents
;
5568 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
5569 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5570 ++sreloc
->reloc_count
;
5572 /* If this reloc is against an external symbol, we do
5573 not want to fiddle with the addend. Otherwise, we
5574 need to include the symbol value so that it becomes
5575 an addend for the dynamic reloc. */
5581 case R_NDS32_25_ABS_RELA
:
5582 if (bfd_link_pic (info
))
5585 (_("%pB: warning: %s unsupported in shared mode"),
5586 input_bfd
, "R_NDS32_25_ABS_RELA");
5591 case R_NDS32_9_PCREL
:
5592 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5594 sec
, relocation
, addend
);
5598 /* We allow an arbitrary number of HI20 relocs before the
5599 LO12 reloc. This permits gcc to emit the HI and LO relocs
5601 for (lorel
= rel
+ 1;
5603 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5606 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5607 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5608 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5609 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5611 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5612 contents
, relocation
+ addend
);
5616 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5617 contents
, offset
, relocation
,
5621 case R_NDS32_GOT17S2_RELA
:
5622 case R_NDS32_GOT15S2_RELA
:
5623 BFD_ASSERT (sgot
!= NULL
);
5629 off
= h
->got
.offset
;
5630 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5632 dyn
= htab
->root
.dynamic_sections_created
;
5633 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5634 (dyn
, bfd_link_pic (info
), h
)
5635 || (bfd_link_pic (info
)
5641 /* This is actually a static link, or it is a
5642 -Bsymbolic link and the symbol is defined
5643 locally, or the symbol was forced to be local
5644 because of a version file. We must initialize
5645 this entry in the global offset table. Since the
5646 offset must always be a multiple of 4, we use the
5647 least significant bit to record whether we have
5648 initialized it already.
5650 When doing a dynamic link, we create a .rela.got
5651 relocation entry to initialize the value. This
5652 is done in the finish_dynamic_symbol routine. */
5657 bfd_put_32 (output_bfd
, relocation
,
5658 sgot
->contents
+ off
);
5667 BFD_ASSERT (local_got_offsets
!= NULL
5668 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5670 off
= local_got_offsets
[r_symndx
];
5672 /* The offset must always be a multiple of 4. We use
5673 the least significant bit to record whether we have
5674 already processed this entry. */
5679 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5681 if (bfd_link_pic (info
))
5684 Elf_Internal_Rela outrel
;
5686 /* We need to generate a R_NDS32_RELATIVE reloc
5687 for the dynamic linker. */
5688 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5689 BFD_ASSERT (srelgot
!= NULL
);
5691 outrel
.r_offset
= (elf_gp (output_bfd
)
5692 + sgot
->output_offset
+ off
);
5693 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5694 outrel
.r_addend
= relocation
;
5695 loc
= srelgot
->contents
;
5697 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5698 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5699 ++srelgot
->reloc_count
;
5701 local_got_offsets
[r_symndx
] |= 1;
5704 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5705 - elf_gp (output_bfd
);
5707 if (relocation
& align
)
5709 /* Incorrect alignment. */
5711 (_("%pB: warning: unaligned access to GOT entry"), input_bfd
);
5713 r
= bfd_reloc_dangerous
;
5718 case R_NDS32_SDA16S3_RELA
:
5719 case R_NDS32_SDA15S3_RELA
:
5720 case R_NDS32_SDA15S3
:
5724 case R_NDS32_SDA17S2_RELA
:
5725 case R_NDS32_SDA15S2_RELA
:
5726 case R_NDS32_SDA12S2_SP_RELA
:
5727 case R_NDS32_SDA12S2_DP_RELA
:
5728 case R_NDS32_SDA15S2
:
5729 case R_NDS32_SDA_FP7U2_RELA
:
5733 case R_NDS32_SDA18S1_RELA
:
5734 case R_NDS32_SDA15S1_RELA
:
5735 case R_NDS32_SDA15S1
:
5739 case R_NDS32_SDA19S0_RELA
:
5740 case R_NDS32_SDA15S0_RELA
:
5741 case R_NDS32_SDA15S0
:
5744 BFD_ASSERT (sec
!= NULL
);
5746 /* If the symbol is in the abs section, the out_bfd will be null.
5747 This happens when the relocation has a symbol@GOTOFF. */
5748 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5749 if (r
!= bfd_reloc_ok
)
5752 (_("%pB: warning: relocate SDA_BASE failed"), input_bfd
);
5757 /* At this point `relocation' contains the object's
5759 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5761 relocation
-= fpbase_addr
;
5765 /* Now it contains the offset from _SDA_BASE_. */
5767 /* Make sure alignment is correct. */
5769 if (relocation
& align
)
5771 /* Incorrect alignment. */
5773 /* xgettext:c-format */
5774 (_("%pB(%pA): warning: unaligned small data access"
5776 input_bfd
, input_section
, r_type
);
5782 case R_NDS32_17IFC_PCREL_RELA
:
5783 case R_NDS32_10IFCU_PCREL_RELA
:
5787 case R_NDS32_TLS_LE_HI20
:
5788 case R_NDS32_TLS_LE_LO12
:
5789 case R_NDS32_TLS_LE_20
:
5790 case R_NDS32_TLS_LE_15S0
:
5791 case R_NDS32_TLS_LE_15S1
:
5792 case R_NDS32_TLS_LE_15S2
:
5793 /* We do not have garbage collection for got entries.
5794 Therefore, IE to LE may have one empty entry, and DESC to
5796 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5797 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5800 case R_NDS32_TLS_IE_HI20
:
5801 case R_NDS32_TLS_IE_LO12S2
:
5802 case R_NDS32_TLS_DESC_HI20
:
5803 case R_NDS32_TLS_DESC_LO12
:
5804 case R_NDS32_TLS_IE_LO12
:
5805 case R_NDS32_TLS_IEGP_HI20
:
5806 case R_NDS32_TLS_IEGP_LO12
:
5807 case R_NDS32_TLS_IEGP_LO12S2
:
5809 /* Relocation is to the entry for this symbol in the global
5811 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
5813 Elf_Internal_Rela outrel
;
5817 eff_tls_type
= org_tls_type
= get_tls_type (r_type
, h
);
5819 BFD_ASSERT (sgot
!= NULL
);
5824 off
= h
->got
.offset
;
5825 BFD_ASSERT (off
!= (bfd_vma
) -1);
5826 dyn
= htab
->root
.dynamic_sections_created
;
5827 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5828 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5829 && (!bfd_link_pic (info
)
5830 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5835 BFD_ASSERT (local_got_offsets
!= NULL
5836 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5837 off
= local_got_offsets
[r_symndx
];
5838 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5841 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5843 if (1 < ones32 (tls_type
))
5845 eff_tls_type
= 1 << (fls (tls_type
) - 1);
5846 /* TLS model shall be handled in nds32_elf_unify_tls_model (). */
5848 /* TLS model X -> LE is not implement yet!
5850 if (eff_tls_type
== GOT_TLS_LE
)
5852 eff_tls_type
= 1 << (fls (tls_type
^ eff_tls_type
) - 1);
5856 /* The offset must always be a multiple of 4. We use
5857 the least significant bit to record whether we have
5858 already processed this entry. */
5859 bfd_boolean need_relocs
= FALSE
;
5860 srelgot
= ehtab
->srelgot
;
5861 if ((bfd_link_pic (info
) || indx
!= 0)
5862 && (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5863 || h
->root
.type
!= bfd_link_hash_undefweak
))
5866 BFD_ASSERT (srelgot
!= NULL
);
5874 if (eff_tls_type
& GOT_TLS_DESC
)
5876 relocation
-= elf_gp (output_bfd
);
5877 if ((R_NDS32_TLS_DESC_HI20
== r_type
) && (!need_relocs
))
5879 /* TLS model shall be converted. */
5883 else if (eff_tls_type
& GOT_TLS_IEGP
)
5885 relocation
-= elf_gp (output_bfd
);
5890 if ((eff_tls_type
& GOT_TLS_LE
) && (tls_type
^ eff_tls_type
))
5892 /* TLS model workaround shall be applied. */
5895 else if (eff_tls_type
& (GOT_TLS_IE
| GOT_TLS_IEGP
))
5897 if (eff_tls_type
& GOT_TLS_IEGP
)
5898 relocation
-= elf_gp(output_bfd
);
5903 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5905 outrel
.r_addend
= 0;
5906 outrel
.r_offset
= (sgot
->output_section
->vma
5907 + sgot
->output_offset
+ off
);
5908 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_TPOFF
);
5910 elf32_nds32_add_dynreloc (output_bfd
, info
, srelgot
,
5915 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5916 sgot
->contents
+ off
);
5919 else if (eff_tls_type
& GOT_TLS_DESC
)
5921 relocation
-= elf_gp (output_bfd
);
5925 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5927 outrel
.r_addend
= 0;
5928 outrel
.r_offset
= (sgot
->output_section
->vma
5929 + sgot
->output_offset
+ off
);
5930 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_DESC
);
5932 if (htab
->tls_desc_trampoline
)
5935 srelplt
= ehtab
->srelplt
;
5936 loc
= srelplt
->contents
;
5937 loc
+= htab
->next_tls_desc_index
++ * sizeof (Elf32_External_Rela
);
5938 BFD_ASSERT (loc
+ sizeof (Elf32_External_Rela
)
5939 <= srelplt
->contents
+ srelplt
->size
);
5941 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5945 loc
= srelgot
->contents
;
5946 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5947 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5948 ++srelgot
->reloc_count
;
5954 bfd_put_32 (output_bfd
, 0xdeadbeef,
5955 sgot
->contents
+ off
);
5956 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5957 sgot
->contents
+ off
+ 4);
5958 patch_tls_desc_to_ie (contents
, rel
, input_bfd
);
5964 /* TLS model workaround shall be applied. */
5971 local_got_offsets
[r_symndx
] |= 1;
5975 /* DON'T fall through. */
5978 /* OLD_NDS32_RELOC. */
5980 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5981 contents
, offset
, relocation
, addend
);
5985 switch ((int) r_type
)
5987 case R_NDS32_20_RELA
:
5988 case R_NDS32_5_RELA
:
5989 case R_NDS32_9_PCREL_RELA
:
5990 case R_NDS32_WORD_9_PCREL_RELA
:
5991 case R_NDS32_10_UPCREL_RELA
:
5992 case R_NDS32_15_PCREL_RELA
:
5993 case R_NDS32_17_PCREL_RELA
:
5994 case R_NDS32_25_PCREL_RELA
:
5995 case R_NDS32_25_ABS_RELA
:
5996 case R_NDS32_HI20_RELA
:
5997 case R_NDS32_LO12S3_RELA
:
5998 case R_NDS32_LO12S2_RELA
:
5999 case R_NDS32_LO12S2_DP_RELA
:
6000 case R_NDS32_LO12S2_SP_RELA
:
6001 case R_NDS32_LO12S1_RELA
:
6002 case R_NDS32_LO12S0_RELA
:
6003 case R_NDS32_LO12S0_ORI_RELA
:
6004 case R_NDS32_SDA16S3_RELA
:
6005 case R_NDS32_SDA17S2_RELA
:
6006 case R_NDS32_SDA18S1_RELA
:
6007 case R_NDS32_SDA19S0_RELA
:
6008 case R_NDS32_SDA15S3_RELA
:
6009 case R_NDS32_SDA15S2_RELA
:
6010 case R_NDS32_SDA12S2_DP_RELA
:
6011 case R_NDS32_SDA12S2_SP_RELA
:
6012 case R_NDS32_SDA15S1_RELA
:
6013 case R_NDS32_SDA15S0_RELA
:
6014 case R_NDS32_SDA_FP7U2_RELA
:
6015 case R_NDS32_9_PLTREL
:
6016 case R_NDS32_25_PLTREL
:
6018 case R_NDS32_GOT_HI20
:
6019 case R_NDS32_GOT_LO12
:
6020 case R_NDS32_GOT_LO15
:
6021 case R_NDS32_GOT_LO19
:
6022 case R_NDS32_GOT15S2_RELA
:
6023 case R_NDS32_GOT17S2_RELA
:
6024 case R_NDS32_GOTPC20
:
6025 case R_NDS32_GOTPC_HI20
:
6026 case R_NDS32_GOTPC_LO12
:
6027 case R_NDS32_GOTOFF
:
6028 case R_NDS32_GOTOFF_HI20
:
6029 case R_NDS32_GOTOFF_LO12
:
6030 case R_NDS32_GOTOFF_LO15
:
6031 case R_NDS32_GOTOFF_LO19
:
6032 case R_NDS32_PLTREL_HI20
:
6033 case R_NDS32_PLTREL_LO12
:
6034 case R_NDS32_PLT_GOTREL_HI20
:
6035 case R_NDS32_PLT_GOTREL_LO12
:
6036 case R_NDS32_PLT_GOTREL_LO15
:
6037 case R_NDS32_PLT_GOTREL_LO19
:
6038 case R_NDS32_PLT_GOTREL_LO20
:
6039 case R_NDS32_17IFC_PCREL_RELA
:
6040 case R_NDS32_10IFCU_PCREL_RELA
:
6041 case R_NDS32_TLS_LE_HI20
:
6042 case R_NDS32_TLS_LE_LO12
:
6043 case R_NDS32_TLS_IE_HI20
:
6044 case R_NDS32_TLS_IE_LO12S2
:
6045 case R_NDS32_TLS_LE_20
:
6046 case R_NDS32_TLS_LE_15S0
:
6047 case R_NDS32_TLS_LE_15S1
:
6048 case R_NDS32_TLS_LE_15S2
:
6049 case R_NDS32_TLS_DESC_HI20
:
6050 case R_NDS32_TLS_DESC_LO12
:
6051 case R_NDS32_TLS_IE_LO12
:
6052 case R_NDS32_TLS_IEGP_HI20
:
6053 case R_NDS32_TLS_IEGP_LO12
:
6054 case R_NDS32_TLS_IEGP_LO12S2
:
6055 /* Instruction related relocs must handle endian properly. */
6056 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
6057 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
6058 input_section
, contents
,
6059 rel
->r_offset
, relocation
,
6064 /* All other relocs can use default handler. */
6065 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
6066 contents
, rel
->r_offset
,
6067 relocation
, rel
->r_addend
);
6073 if (r
!= bfd_reloc_ok
)
6075 /* FIXME: This should be generic enough to go in a utility. */
6079 name
= h
->root
.root
.string
;
6082 name
= bfd_elf_string_from_elf_section
6083 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
6084 if (name
== NULL
|| *name
== '\0')
6085 name
= bfd_section_name (sec
);
6093 case bfd_reloc_overflow
:
6094 (*info
->callbacks
->reloc_overflow
)
6095 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
6096 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
6099 case bfd_reloc_undefined
:
6100 (*info
->callbacks
->undefined_symbol
)
6101 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
6104 case bfd_reloc_outofrange
:
6105 errmsg
= _("internal error: out of range error");
6108 case bfd_reloc_notsupported
:
6109 errmsg
= _("internal error: unsupported relocation error");
6112 case bfd_reloc_dangerous
:
6113 errmsg
= _("internal error: dangerous error");
6117 errmsg
= _("internal error: unknown error");
6121 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
6122 input_section
, offset
);
6128 /* Resotre header size to avoid overflow load. */
6129 if (elf_nds32_tdata (input_bfd
)->hdr_size
!= 0)
6130 symtab_hdr
->sh_size
= elf_nds32_tdata (input_bfd
)->hdr_size
;
6135 /* Finish up dynamic symbol handling. We set the contents of various
6136 dynamic sections here. */
6139 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
6140 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
6142 struct elf_link_hash_table
*ehtab
;
6143 struct elf_nds32_link_hash_entry
*hent
;
6146 ehtab
= elf_hash_table (info
);
6147 hent
= (struct elf_nds32_link_hash_entry
*) h
;
6149 if (h
->plt
.offset
!= (bfd_vma
) - 1)
6157 bfd_vma local_plt_offset
;
6158 Elf_Internal_Rela rela
;
6160 /* This symbol has an entry in the procedure linkage table. Set
6163 BFD_ASSERT (h
->dynindx
!= -1);
6166 sgot
= ehtab
->sgotplt
;
6167 srela
= ehtab
->srelplt
;
6168 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
6170 /* Get the index in the procedure linkage table which
6171 corresponds to this symbol. This is the index of this symbol
6172 in all the symbols for which we are making plt entries. The
6173 first entry in the procedure linkage table is reserved. */
6174 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
6176 /* Get the offset into the .got table of the entry that
6177 corresponds to this function. Each .got entry is 4 bytes.
6178 The first three are reserved. */
6179 got_offset
= (plt_index
+ 3) * 4;
6181 /* Fill in the entry in the procedure linkage table. */
6182 if (!bfd_link_pic (info
))
6186 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
6187 + sgot
->output_offset
+ got_offset
) >> 12)
6189 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6191 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
6192 + sgot
->output_offset
+ got_offset
) & 0x0fff)
6194 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6196 insn
= PLT_ENTRY_WORD2
;
6197 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6199 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
6200 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6202 insn
= PLT_ENTRY_WORD4
6203 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
6204 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6205 local_plt_offset
= 12;
6209 /* sda_base must be set at this time. */
6213 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
6214 - elf_gp (output_bfd
);
6215 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
6216 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6218 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
6219 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6221 insn
= PLT_PIC_ENTRY_WORD2
;
6222 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6224 insn
= PLT_PIC_ENTRY_WORD3
;
6225 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6227 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
6228 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6230 insn
= PLT_PIC_ENTRY_WORD5
6231 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
6232 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
6234 local_plt_offset
= 16;
6237 /* Fill in the entry in the global offset table,
6238 so it will fall through to the next instruction for the first time. */
6239 bfd_put_32 (output_bfd
,
6240 (splt
->output_section
->vma
+ splt
->output_offset
6241 + h
->plt
.offset
+ local_plt_offset
),
6242 sgot
->contents
+ got_offset
);
6244 /* Fill in the entry in the .rela.plt section. */
6245 rela
.r_offset
= (sgot
->output_section
->vma
6246 + sgot
->output_offset
+ got_offset
);
6247 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
6249 loc
= srela
->contents
;
6250 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
6251 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6253 if (!h
->def_regular
)
6255 /* Mark the symbol as undefined, rather than as defined in
6256 the .plt section. Leave the value alone. */
6257 sym
->st_shndx
= SHN_UNDEF
;
6258 if (!h
->ref_regular_nonweak
)
6263 if (h
->got
.offset
!= (bfd_vma
) - 1
6264 && hent
->tls_type
== GOT_NORMAL
)
6268 Elf_Internal_Rela rela
;
6270 /* This symbol has an entry in the global offset table.
6274 srelagot
= ehtab
->srelgot
;
6275 BFD_ASSERT (sgot
!= NULL
&& srelagot
!= NULL
);
6277 rela
.r_offset
= (sgot
->output_section
->vma
6278 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
6280 /* If this is a -Bsymbolic link, and the symbol is defined
6281 locally, we just want to emit a RELATIVE reloc. Likewise if
6282 the symbol was forced to be local because of a version file.
6283 The entry in the global offset table will already have been
6284 initialized in the relocate_section function. */
6285 if ((bfd_link_pic (info
)
6286 && (info
->symbolic
|| h
->dynindx
== -1 || h
->forced_local
)
6288 || (bfd_link_pie (info
) && h
->def_regular
))
6290 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
6291 rela
.r_addend
= (h
->root
.u
.def
.value
6292 + h
->root
.u
.def
.section
->output_section
->vma
6293 + h
->root
.u
.def
.section
->output_offset
);
6295 if ((h
->got
.offset
& 1) == 0)
6297 bfd_put_32 (output_bfd
, rela
.r_addend
,
6298 sgot
->contents
+ h
->got
.offset
);
6303 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
6304 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
6305 sgot
->contents
+ h
->got
.offset
);
6306 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
6310 loc
= srelagot
->contents
;
6311 loc
+= srelagot
->reloc_count
* sizeof (Elf32_External_Rela
);
6312 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6313 ++srelagot
->reloc_count
;
6314 BFD_ASSERT (loc
< (srelagot
->contents
+ srelagot
->size
));
6320 Elf_Internal_Rela rela
;
6322 /* This symbols needs a copy reloc. Set it up. */
6324 BFD_ASSERT (h
->dynindx
!= -1
6325 && (h
->root
.type
== bfd_link_hash_defined
6326 || h
->root
.type
== bfd_link_hash_defweak
));
6328 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
6329 BFD_ASSERT (s
!= NULL
);
6331 rela
.r_offset
= (h
->root
.u
.def
.value
6332 + h
->root
.u
.def
.section
->output_section
->vma
6333 + h
->root
.u
.def
.section
->output_offset
);
6334 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
6337 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
6338 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6342 /* Mark some specially defined symbols as absolute. */
6343 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
6344 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
6345 sym
->st_shndx
= SHN_ABS
;
6351 /* Finish up the dynamic sections. */
6354 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6359 struct elf_link_hash_table
*ehtab
;
6360 struct elf_nds32_link_hash_table
*htab
;
6362 ehtab
= elf_hash_table (info
);
6363 htab
= nds32_elf_hash_table (info
);
6367 dynobj
= elf_hash_table (info
)->dynobj
;
6369 sgotplt
= ehtab
->sgotplt
;
6370 /* A broken linker script might have discarded the dynamic sections.
6371 Catch this here so that we do not seg-fault later on. */
6372 if (sgotplt
!= NULL
&& bfd_is_abs_section (sgotplt
->output_section
))
6374 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
6376 if (elf_hash_table (info
)->dynamic_sections_created
)
6379 Elf32_External_Dyn
*dyncon
, *dynconend
;
6381 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6383 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6384 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6386 for (; dyncon
< dynconend
; dyncon
++)
6388 Elf_Internal_Dyn dyn
;
6391 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
6399 /* name = ".got"; */
6400 s
= ehtab
->sgot
->output_section
;
6403 s
= ehtab
->srelplt
->output_section
;
6405 BFD_ASSERT (s
!= NULL
);
6406 dyn
.d_un
.d_ptr
= s
->vma
;
6407 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6411 s
= ehtab
->srelplt
->output_section
;
6412 BFD_ASSERT (s
!= NULL
);
6413 dyn
.d_un
.d_val
= s
->size
;
6414 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6418 /* My reading of the SVR4 ABI indicates that the
6419 procedure linkage table relocs (DT_JMPREL) should be
6420 included in the overall relocs (DT_RELA). This is
6421 what Solaris does. However, UnixWare can not handle
6422 that case. Therefore, we override the DT_RELASZ entry
6423 here to make it not include the JMPREL relocs. Since
6424 the linker script arranges for .rela.plt to follow all
6425 other relocation sections, we don't have to worry
6426 about changing the DT_RELA entry. */
6427 if (ehtab
->srelplt
!= NULL
)
6429 s
= ehtab
->srelplt
->output_section
;
6430 dyn
.d_un
.d_val
-= s
->size
;
6432 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6435 case DT_TLSDESC_PLT
:
6436 s
= htab
->root
.splt
;
6437 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6438 + htab
->dt_tlsdesc_plt
);
6439 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6442 case DT_TLSDESC_GOT
:
6443 s
= htab
->root
.sgot
;
6444 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6445 + htab
->dt_tlsdesc_got
);
6446 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6451 /* Fill in the first entry in the procedure linkage table. */
6453 if (splt
&& splt
->size
> 0)
6455 if (bfd_link_pic (info
))
6460 offset
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4
6461 - elf_gp (output_bfd
);
6462 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
6463 bfd_putb32 (insn
, splt
->contents
);
6465 /* here has a typo? */
6466 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
6467 bfd_putb32 (insn
, splt
->contents
+ 4);
6469 insn
= PLT0_PIC_ENTRY_WORD2
;
6470 bfd_putb32 (insn
, splt
->contents
+ 8);
6472 insn
= PLT0_PIC_ENTRY_WORD3
;
6473 bfd_putb32 (insn
, splt
->contents
+ 12);
6475 insn
= PLT0_PIC_ENTRY_WORD4
;
6476 bfd_putb32 (insn
, splt
->contents
+ 16);
6478 insn
= PLT0_PIC_ENTRY_WORD5
;
6479 bfd_putb32 (insn
, splt
->contents
+ 20);
6486 /* addr = .got + 4 */
6487 addr
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4;
6488 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
6489 bfd_putb32 (insn
, splt
->contents
);
6491 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
6492 bfd_putb32 (insn
, splt
->contents
+ 4);
6494 insn
= PLT0_ENTRY_WORD2
;
6495 bfd_putb32 (insn
, splt
->contents
+ 8);
6497 insn
= PLT0_ENTRY_WORD3
;
6498 bfd_putb32 (insn
, splt
->contents
+ 12);
6500 insn
= PLT0_ENTRY_WORD4
;
6501 bfd_putb32 (insn
, splt
->contents
+ 16);
6504 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
6508 if (htab
->dt_tlsdesc_plt
)
6510 /* Calculate addresses. */
6511 asection
*sgot
= sgot
= ehtab
->sgot
;
6512 bfd_vma pltgot
= sgotplt
->output_section
->vma
6513 + sgotplt
->output_offset
;
6514 bfd_vma tlsdesc_got
= sgot
->output_section
->vma
+ sgot
->output_offset
6515 + htab
->dt_tlsdesc_got
;
6517 /* Get GP offset. */
6518 pltgot
-= elf_gp (output_bfd
) - 4; /* PLTGOT[1] */
6519 tlsdesc_got
-= elf_gp (output_bfd
);
6521 /* Do relocation. */
6522 dl_tlsdesc_lazy_trampoline
[0] += ((1 << 20) - 1) & (tlsdesc_got
>> 12);
6523 dl_tlsdesc_lazy_trampoline
[1] += 0xfff & tlsdesc_got
;
6524 dl_tlsdesc_lazy_trampoline
[4] += ((1 << 20) - 1) & (pltgot
>> 12);
6525 dl_tlsdesc_lazy_trampoline
[5] += 0xfff & pltgot
;
6528 nds32_put_trampoline (splt
->contents
+ htab
->dt_tlsdesc_plt
,
6529 dl_tlsdesc_lazy_trampoline
,
6530 ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
));
6534 /* Fill in the first three entries in the global offset table. */
6535 if (sgotplt
&& sgotplt
->size
> 0)
6538 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
6540 bfd_put_32 (output_bfd
,
6541 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
6543 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
6544 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
6546 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
6553 /* Set the right machine number. */
6556 nds32_elf_object_p (bfd
*abfd
)
6558 static unsigned int cur_arch
= 0;
6560 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
6562 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
6563 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
6570 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
6573 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
6575 case E_NDS_ARCH_STAR_V2_0
:
6576 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
6578 case E_NDS_ARCH_STAR_V3_0
:
6579 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
6581 case E_NDS_ARCH_STAR_V3_M
:
6582 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
6589 /* Store the machine number in the flags field. */
6592 nds32_elf_final_write_processing (bfd
*abfd
)
6595 static unsigned int cur_mach
= 0;
6597 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
6599 cur_mach
= bfd_get_mach (abfd
);
6605 /* Only happen when object is empty, since the case is abandon. */
6607 val
|= E_NDS_ABI_AABI
;
6608 val
|= E_NDS32_ELF_VER_1_4
;
6613 case bfd_mach_n1h_v2
:
6614 val
= E_NDS_ARCH_STAR_V2_0
;
6616 case bfd_mach_n1h_v3
:
6617 val
= E_NDS_ARCH_STAR_V3_0
;
6619 case bfd_mach_n1h_v3m
:
6620 val
= E_NDS_ARCH_STAR_V3_M
;
6627 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
6628 elf_elfheader (abfd
)->e_flags
|= val
;
6629 return _bfd_elf_final_write_processing (abfd
);
6632 /* Function to keep NDS32 specific file flags. */
6635 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
6637 BFD_ASSERT (!elf_flags_init (abfd
)
6638 || elf_elfheader (abfd
)->e_flags
== flags
);
6640 elf_elfheader (abfd
)->e_flags
= flags
;
6641 elf_flags_init (abfd
) = TRUE
;
6646 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
6648 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
6650 /* From 0.9 to 1.0. */
6651 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
6653 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6654 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6655 if (arch
== E_NDS_ARCH_STAR_V1_0
)
6662 /* From 1.0 to 2.0. */
6663 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
6665 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
6666 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
6668 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6669 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6674 nds32_check_vec_size (bfd
*ibfd
)
6676 static unsigned int nds32_vec_size
= 0;
6678 asection
*sec_t
= NULL
;
6679 bfd_byte
*contents
= NULL
;
6681 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
6683 if (sec_t
&& sec_t
->size
>= 4)
6685 /* Get vec_size in file. */
6686 unsigned int flag_t
;
6688 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
6689 flag_t
= bfd_get_32 (ibfd
, contents
);
6691 /* The value could only be 4 or 16. */
6693 if (!nds32_vec_size
)
6694 /* Set if not set yet. */
6695 nds32_vec_size
= (flag_t
& 0x3);
6696 else if (nds32_vec_size
!= (flag_t
& 0x3))
6699 /* xgettext:c-format */
6700 (_("%pB: ISR vector size mismatch"
6701 " with previous modules, previous %u-byte, current %u-byte"),
6703 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
6704 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
6708 /* Only keep the first vec_size section. */
6709 sec_t
->flags
|= SEC_EXCLUDE
;
6715 /* Merge backend specific data from an object file to the output
6716 object file when linking. */
6719 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6721 bfd
*obfd
= info
->output_bfd
;
6724 flagword out_16regs
;
6726 flagword out_no_mac
;
6728 flagword out_version
;
6729 flagword in_version
;
6730 flagword out_fpu_config
;
6731 flagword in_fpu_config
;
6733 /* FIXME: What should be checked when linking shared libraries? */
6734 if ((ibfd
->flags
& DYNAMIC
) != 0)
6737 /* TODO: Revise to use object-attributes instead. */
6738 if (!nds32_check_vec_size (ibfd
))
6741 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6742 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6745 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6748 (_("%pB: warning: endian mismatch with previous modules"), ibfd
);
6750 bfd_set_error (bfd_error_bad_value
);
6754 /* -B option in objcopy cannot work as expected. e_flags = 0 shall be
6755 treat as generic one without checking and merging. */
6756 if (elf_elfheader (ibfd
)->e_flags
)
6758 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6759 if (in_version
== E_NDS32_ELF_VER_1_2
)
6762 (_("%pB: warning: older version of object file encountered, "
6763 "please recompile with current tool chain"), ibfd
);
6766 /* We may need to merge V1 and V2 arch object files to V2. */
6767 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6768 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6770 /* Need to convert version. */
6771 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6772 == E_NDS_ARCH_STAR_RESERVED
)
6774 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6776 else if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6777 == E_NDS_ARCH_STAR_V3_M
6778 && (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6779 == E_NDS_ARCH_STAR_V3_0
)
6781 elf_elfheader (ibfd
)->e_flags
=
6782 (elf_elfheader (ibfd
)->e_flags
& (~EF_NDS_ARCH
))
6783 | E_NDS_ARCH_STAR_V3_0
;
6785 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6786 == E_NDS_ARCH_STAR_V0_9
6787 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6788 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6790 elf_elfheader (obfd
)->e_flags
=
6791 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6792 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6796 elf_elfheader (ibfd
)->e_flags
=
6797 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6798 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6802 /* Extract some flags. */
6803 in_flags
= elf_elfheader (ibfd
)->e_flags
6804 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6805 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6807 /* The following flags need special treatment. */
6808 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6809 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6810 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6812 /* Extract some flags. */
6813 out_flags
= elf_elfheader (obfd
)->e_flags
6814 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6815 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6817 /* The following flags need special treatment. */
6818 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6819 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6820 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6821 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6822 if (!elf_flags_init (obfd
))
6824 /* If the input is the default architecture then do not
6825 bother setting the flags for the output architecture,
6826 instead allow future merges to do this. If no future
6827 merges ever set these flags then they will retain their
6828 unitialised values, which surprise surprise, correspond
6829 to the default values. */
6830 if (bfd_get_arch_info (ibfd
)->the_default
)
6833 elf_flags_init (obfd
) = TRUE
;
6834 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6836 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6837 && bfd_get_arch_info (obfd
)->the_default
)
6839 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6840 bfd_get_mach (ibfd
));
6846 /* Check flag compatibility. */
6847 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6850 (_("%pB: error: ABI mismatch with previous modules"), ibfd
);
6851 bfd_set_error (bfd_error_bad_value
);
6855 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6857 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6860 (_("%pB: error: instruction set mismatch with previous modules"),
6863 bfd_set_error (bfd_error_bad_value
);
6868 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6869 and perf ext1 and DIV are mergerd to perf ext1. */
6870 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6872 elf_elfheader (obfd
)->e_flags
=
6873 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6874 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6875 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6876 ? E_NDS32_HAS_EXT_INST
: 0)
6877 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6878 ? E_NDS32_HAS_EXT_INST
: 0)
6879 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6880 | ((in_version
> out_version
) ? out_version
: in_version
);
6884 if (in_version
!= out_version
)
6886 /* xgettext:c-format */
6887 (_("%pB: warning: incompatible elf-versions %s and %s"),
6888 ibfd
, nds32_elfver_strtab
[out_version
],
6889 nds32_elfver_strtab
[in_version
]);
6891 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6892 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6893 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6894 | (in_version
> out_version
? out_version
: in_version
);
6901 /* Display the flags field. */
6904 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6906 FILE *file
= (FILE *) ptr
;
6908 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6910 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6912 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6914 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6918 fprintf (file
, _(": n1 instructions"));
6921 fprintf (file
, _(": n1h instructions"));
6931 nds32_elf_action_discarded (asection
*sec
)
6935 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6938 return _bfd_elf_default_action_discarded (sec
);
6942 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6943 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6944 Elf_Internal_Sym
*sym
)
6947 switch (ELF32_R_TYPE (rel
->r_info
))
6949 case R_NDS32_GNU_VTINHERIT
:
6950 case R_NDS32_GNU_VTENTRY
:
6951 case R_NDS32_RELA_GNU_VTINHERIT
:
6952 case R_NDS32_RELA_GNU_VTENTRY
:
6956 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6959 static enum elf_nds32_tls_type
6960 get_tls_type (enum elf_nds32_reloc_type r_type
,
6961 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
6963 enum elf_nds32_tls_type tls_type
;
6967 case R_NDS32_TLS_LE_HI20
:
6968 case R_NDS32_TLS_LE_LO12
:
6969 tls_type
= GOT_TLS_LE
;
6971 case R_NDS32_TLS_IE_HI20
:
6972 case R_NDS32_TLS_IE_LO12S2
:
6973 case R_NDS32_TLS_IE_LO12
:
6974 tls_type
= GOT_TLS_IE
;
6976 case R_NDS32_TLS_IEGP_HI20
:
6977 case R_NDS32_TLS_IEGP_LO12
:
6978 case R_NDS32_TLS_IEGP_LO12S2
:
6979 tls_type
= GOT_TLS_IEGP
;
6981 case R_NDS32_TLS_DESC_HI20
:
6982 case R_NDS32_TLS_DESC_LO12
:
6983 case R_NDS32_TLS_DESC_ADD
:
6984 case R_NDS32_TLS_DESC_FUNC
:
6985 case R_NDS32_TLS_DESC_CALL
:
6986 tls_type
= GOT_TLS_DESC
;
6989 tls_type
= GOT_NORMAL
;
6996 /* Ensure that we have allocated bookkeeping structures for ABFD's local
7000 elf32_nds32_allocate_local_sym_info (bfd
*abfd
)
7002 if (elf_local_got_refcounts (abfd
) == NULL
)
7004 bfd_size_type num_syms
;
7008 num_syms
= elf_tdata (abfd
)->symtab_hdr
.sh_info
;
7009 /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and
7010 gp_offset. The details can refer to struct elf_nds32_obj_tdata. */
7011 size
= num_syms
* (sizeof (bfd_signed_vma
) + sizeof (char)
7012 + sizeof (bfd_vma
) + sizeof (int)
7013 + sizeof (bfd_boolean
) + sizeof (bfd_vma
));
7014 data
= bfd_zalloc (abfd
, size
);
7018 elf_local_got_refcounts (abfd
) = (bfd_signed_vma
*) data
;
7019 data
+= num_syms
* sizeof (bfd_signed_vma
);
7021 elf32_nds32_local_got_tls_type (abfd
) = (char *) data
;
7022 data
+= num_syms
* sizeof (char);
7024 elf32_nds32_local_tlsdesc_gotent (abfd
) = (bfd_vma
*) data
;
7025 data
+= num_syms
* sizeof (bfd_vma
);
7027 elf32_nds32_local_gp_offset (abfd
) = (int *) data
;
7028 data
+= num_syms
* sizeof (int);
7034 /* Look through the relocs for a section during the first phase.
7035 Since we don't do .gots or .plts, we just need to consider the
7036 virtual table relocs for gc. */
7039 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
7040 asection
*sec
, const Elf_Internal_Rela
*relocs
)
7042 Elf_Internal_Shdr
*symtab_hdr
;
7043 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
7044 const Elf_Internal_Rela
*rel
;
7045 const Elf_Internal_Rela
*rel_end
;
7046 struct elf_link_hash_table
*ehtab
;
7047 struct elf_nds32_link_hash_table
*htab
;
7049 asection
*sreloc
= NULL
;
7051 /* No need for relocation if relocatable already. */
7052 if (bfd_link_relocatable (info
))
7054 elf32_nds32_check_relax_group (abfd
, sec
);
7058 /* Don't do anything special with non-loaded, non-alloced sections.
7059 In particular, any relocs in such sections should not affect GOT
7060 and PLT reference counting (ie. we don't allow them to create GOT
7061 or PLT entries), there's no possibility or desire to optimize TLS
7062 relocs, and there's not much point in propagating relocs to shared
7063 libs that the dynamic linker won't relocate. */
7064 if ((sec
->flags
& SEC_ALLOC
) == 0)
7067 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
7068 sym_hashes
= elf_sym_hashes (abfd
);
7070 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
7071 if (!elf_bad_symtab (abfd
))
7072 sym_hashes_end
-= symtab_hdr
->sh_info
;
7074 ehtab
= elf_hash_table (info
);
7075 htab
= nds32_elf_hash_table (info
);
7076 dynobj
= htab
->root
.dynobj
;
7078 rel_end
= relocs
+ sec
->reloc_count
;
7079 for (rel
= relocs
; rel
< rel_end
; rel
++)
7081 enum elf_nds32_reloc_type r_type
;
7082 struct elf_link_hash_entry
*h
;
7083 unsigned long r_symndx
;
7084 enum elf_nds32_tls_type tls_type
, old_tls_type
;
7086 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7087 r_type
= ELF32_R_TYPE (rel
->r_info
);
7088 if (r_symndx
< symtab_hdr
->sh_info
)
7092 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7093 while (h
->root
.type
== bfd_link_hash_indirect
7094 || h
->root
.type
== bfd_link_hash_warning
)
7095 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7098 /* Create .got section if necessary.
7099 Some relocs require a global offset table. We create
7100 got section here, since these relocation need a got section
7101 and if it is not created yet. */
7102 if (ehtab
->sgot
== NULL
)
7106 case R_NDS32_GOT_HI20
:
7107 case R_NDS32_GOT_LO12
:
7108 case R_NDS32_GOT_LO15
:
7109 case R_NDS32_GOT_LO19
:
7110 case R_NDS32_GOT17S2_RELA
:
7111 case R_NDS32_GOT15S2_RELA
:
7112 case R_NDS32_GOTOFF
:
7113 case R_NDS32_GOTOFF_HI20
:
7114 case R_NDS32_GOTOFF_LO12
:
7115 case R_NDS32_GOTOFF_LO15
:
7116 case R_NDS32_GOTOFF_LO19
:
7117 case R_NDS32_GOTPC20
:
7118 case R_NDS32_GOTPC_HI20
:
7119 case R_NDS32_GOTPC_LO12
:
7121 case R_NDS32_TLS_IE_HI20
:
7122 case R_NDS32_TLS_IE_LO12
:
7123 case R_NDS32_TLS_IE_LO12S2
:
7124 case R_NDS32_TLS_IEGP_HI20
:
7125 case R_NDS32_TLS_IEGP_LO12
:
7126 case R_NDS32_TLS_IEGP_LO12S2
:
7127 case R_NDS32_TLS_DESC_HI20
:
7128 case R_NDS32_TLS_DESC_LO12
:
7130 htab
->root
.dynobj
= dynobj
= abfd
;
7131 if (!create_got_section (dynobj
, info
))
7140 /* Check relocation type. */
7141 switch ((int) r_type
)
7143 case R_NDS32_GOT_HI20
:
7144 case R_NDS32_GOT_LO12
:
7145 case R_NDS32_GOT_LO15
:
7146 case R_NDS32_GOT_LO19
:
7148 case R_NDS32_TLS_LE_HI20
:
7149 case R_NDS32_TLS_LE_LO12
:
7150 case R_NDS32_TLS_IE_HI20
:
7151 case R_NDS32_TLS_IE_LO12
:
7152 case R_NDS32_TLS_IE_LO12S2
:
7153 case R_NDS32_TLS_IEGP_HI20
:
7154 case R_NDS32_TLS_IEGP_LO12
:
7155 case R_NDS32_TLS_IEGP_LO12S2
:
7156 case R_NDS32_TLS_DESC_HI20
:
7157 case R_NDS32_TLS_DESC_LO12
:
7158 tls_type
= get_tls_type (r_type
, h
);
7161 if (tls_type
!= GOT_TLS_LE
)
7162 h
->got
.refcount
+= 1;
7163 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
7167 /* This is a global offset table entry for a local symbol. */
7168 if (!elf32_nds32_allocate_local_sym_info (abfd
))
7171 BFD_ASSERT (r_symndx
< symtab_hdr
->sh_info
);
7172 if (tls_type
!= GOT_TLS_LE
)
7173 elf_local_got_refcounts (abfd
)[r_symndx
] += 1;
7174 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
7177 /* We would already have issued an error message if there
7178 is a TLS/non-TLS mismatch, based on the symbol
7179 type. So just combine any TLS types needed. */
7180 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
7181 && tls_type
!= GOT_NORMAL
)
7182 tls_type
|= old_tls_type
;
7184 /* DESC to IE/IEGP if link to executable. */
7185 if ((tls_type
& (GOT_TLS_DESC
| GOT_TLS_IEGP
))
7186 && (bfd_link_executable (info
)))
7187 tls_type
|= (bfd_link_pie (info
) ? GOT_TLS_IEGP
: GOT_TLS_IE
);
7189 if (old_tls_type
!= tls_type
)
7192 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
7194 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
7197 case R_NDS32_9_PLTREL
:
7198 case R_NDS32_25_PLTREL
:
7199 case R_NDS32_PLTREL_HI20
:
7200 case R_NDS32_PLTREL_LO12
:
7201 case R_NDS32_PLT_GOTREL_HI20
:
7202 case R_NDS32_PLT_GOTREL_LO12
:
7203 case R_NDS32_PLT_GOTREL_LO15
:
7204 case R_NDS32_PLT_GOTREL_LO19
:
7205 case R_NDS32_PLT_GOTREL_LO20
:
7207 /* This symbol requires a procedure linkage table entry. We
7208 actually build the entry in adjust_dynamic_symbol,
7209 because this might be a case of linking PIC code without
7210 linking in any dynamic objects, in which case we don't
7211 need to generate a procedure linkage table after all. */
7213 /* If this is a local symbol, we resolve it directly without
7214 creating a procedure linkage table entry. */
7219 || (bfd_link_pie (info
) && h
->def_regular
))
7222 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
7224 h
->plt
.refcount
+= 1;
7227 case R_NDS32_16_RELA
:
7228 case R_NDS32_20_RELA
:
7229 case R_NDS32_5_RELA
:
7230 case R_NDS32_32_RELA
:
7231 case R_NDS32_HI20_RELA
:
7232 case R_NDS32_LO12S3_RELA
:
7233 case R_NDS32_LO12S2_RELA
:
7234 case R_NDS32_LO12S2_DP_RELA
:
7235 case R_NDS32_LO12S2_SP_RELA
:
7236 case R_NDS32_LO12S1_RELA
:
7237 case R_NDS32_LO12S0_RELA
:
7238 case R_NDS32_LO12S0_ORI_RELA
:
7239 case R_NDS32_SDA16S3_RELA
:
7240 case R_NDS32_SDA17S2_RELA
:
7241 case R_NDS32_SDA18S1_RELA
:
7242 case R_NDS32_SDA19S0_RELA
:
7243 case R_NDS32_SDA15S3_RELA
:
7244 case R_NDS32_SDA15S2_RELA
:
7245 case R_NDS32_SDA12S2_DP_RELA
:
7246 case R_NDS32_SDA12S2_SP_RELA
:
7247 case R_NDS32_SDA15S1_RELA
:
7248 case R_NDS32_SDA15S0_RELA
:
7249 case R_NDS32_SDA_FP7U2_RELA
:
7250 case R_NDS32_15_PCREL_RELA
:
7251 case R_NDS32_17_PCREL_RELA
:
7252 case R_NDS32_25_PCREL_RELA
:
7254 if (h
!= NULL
&& !bfd_link_pic (info
))
7257 h
->plt
.refcount
+= 1;
7260 /* If we are creating a shared library, and this is a reloc against
7261 a global symbol, or a non PC relative reloc against a local
7262 symbol, then we need to copy the reloc into the shared library.
7263 However, if we are linking with -Bsymbolic, we do not need to
7264 copy a reloc against a global symbol which is defined in an
7265 object we are including in the link (i.e., DEF_REGULAR is set).
7266 At this point we have not seen all the input files, so it is
7267 possible that DEF_REGULAR is not set now but will be set later
7268 (it is never cleared). We account for that possibility below by
7269 storing information in the dyn_relocs field of the hash table
7270 entry. A similar situation occurs when creating shared libraries
7271 and symbol visibility changes render the symbol local.
7273 If on the other hand, we are creating an executable, we may need
7274 to keep relocations for symbols satisfied by a dynamic library
7275 if we manage to avoid copy relocs for the symbol. */
7276 if ((bfd_link_pic (info
)
7277 && (sec
->flags
& SEC_ALLOC
) != 0
7278 && ((r_type
!= R_NDS32_25_PCREL_RELA
7279 && r_type
!= R_NDS32_15_PCREL_RELA
7280 && r_type
!= R_NDS32_17_PCREL_RELA
7281 && !(r_type
== R_NDS32_32_RELA
7282 && strcmp (sec
->name
, ".eh_frame") == 0))
7285 || h
->root
.type
== bfd_link_hash_defweak
7286 || !h
->def_regular
))))
7287 || (!bfd_link_pic (info
)
7288 && (sec
->flags
& SEC_ALLOC
) != 0
7290 && (h
->root
.type
== bfd_link_hash_defweak
7291 || !h
->def_regular
)))
7293 struct elf_dyn_relocs
*p
;
7294 struct elf_dyn_relocs
**head
;
7297 htab
->root
.dynobj
= dynobj
= abfd
;
7299 /* When creating a shared object, we must copy these
7300 relocs into the output file. We create a reloc
7301 section in dynobj and make room for the reloc. */
7306 name
= bfd_elf_string_from_elf_section
7307 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
7308 elf_section_data (sec
)->rela
.hdr
->sh_name
);
7312 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
7313 && strcmp (bfd_section_name (sec
),
7316 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7321 sreloc
= bfd_make_section (dynobj
, name
);
7322 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
7323 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
7324 if ((sec
->flags
& SEC_ALLOC
) != 0)
7325 flags
|= SEC_ALLOC
| SEC_LOAD
;
7327 || !bfd_set_section_flags (sreloc
, flags
)
7328 || !bfd_set_section_alignment (sreloc
, 2))
7331 elf_section_type (sreloc
) = SHT_RELA
;
7333 elf_section_data (sec
)->sreloc
= sreloc
;
7336 /* If this is a global symbol, we count the number of
7337 relocations we need for this symbol. */
7339 head
= &h
->dyn_relocs
;
7345 Elf_Internal_Sym
*isym
;
7346 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
7350 /* Track dynamic relocs needed for local syms too. */
7351 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7355 vpp
= &elf_section_data (s
)->local_dynrel
;
7356 head
= (struct elf_dyn_relocs
**) vpp
;
7360 if (p
== NULL
|| p
->sec
!= sec
)
7362 size_t amt
= sizeof (*p
);
7363 p
= (struct elf_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
7375 /* Since eh_frame is readonly, R_NDS32_32_RELA
7376 reloc for eh_frame will cause shared library has
7377 TEXTREL entry in the dynamic section. This lead glibc
7378 testsuites to failure (bug-13092) and cause kernel fail
7379 (bug-11819). I think the best solution is to replace
7380 absolute reloc with pc relative reloc in the eh_frame.
7381 To do that, we need to support the following issues:
7384 * gcc/config/nds32/nds32.h: Define
7385 ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel
7386 and DW_EH_PE_sdata4 into DWARF exception header when
7387 option have '-fpic'.
7389 === For binutils ===
7390 * bfd/: Define new reloc R_NDS32_32_PCREL_RELA.
7391 * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This
7392 may break our nds DIFF mechanism, therefore, we
7393 must disable all linker relaxations to ensure
7395 * gas/config/tc-nds32.c (nds32_apply_fix): Replace
7396 R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and
7397 do the necessary modification.
7399 Unfortunately, it still have some problems for nds32
7400 to support pc relative reloc in the eh_frame. So I use
7401 another solution to fix this issue.
7403 However, I find that ld always emit TEXTREL marker for
7404 R_NDS32_NONE relocs in rel.dyn. These none relocs are
7405 correspond to R_NDS32_32_RELA for .eh_frame section.
7406 It means that we always reserve redundant entries of rel.dyn
7407 for these relocs which actually do nothing in dynamic linker.
7409 Therefore, we regard these relocs as pc relative relocs
7410 here and increase the pc_count. */
7411 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
7412 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
7413 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
7414 || (r_type
== R_NDS32_32_RELA
7415 && strcmp (sec
->name
, ".eh_frame") == 0))
7420 /* This relocation describes the C++ object vtable hierarchy.
7421 Reconstruct it for later use during GC. */
7422 case R_NDS32_RELA_GNU_VTINHERIT
:
7423 case R_NDS32_GNU_VTINHERIT
:
7424 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7428 /* This relocation describes which C++ vtable entries are actually
7429 used. Record for later use during GC. */
7430 case R_NDS32_GNU_VTENTRY
:
7431 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7434 case R_NDS32_RELA_GNU_VTENTRY
:
7435 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
7444 /* Write VAL in uleb128 format to P, returning a pointer to the
7446 This code is copied from elf-attr.c. */
7449 write_uleb128 (bfd_byte
*p
, unsigned int val
)
7464 static bfd_signed_vma
7465 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
7466 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
7468 bfd_signed_vma foff
;
7469 bfd_vma symval
, addend
;
7472 /* Get the value of the symbol referred to by the reloc. */
7473 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
7475 Elf_Internal_Sym
*isym
;
7477 /* A local symbol. */
7478 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
7480 if (isym
->st_shndx
== SHN_UNDEF
)
7481 sym_sec
= bfd_und_section_ptr
;
7482 else if (isym
->st_shndx
== SHN_ABS
)
7483 sym_sec
= bfd_abs_section_ptr
;
7484 else if (isym
->st_shndx
== SHN_COMMON
)
7485 sym_sec
= bfd_com_section_ptr
;
7487 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7488 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
7489 + sym_sec
->output_offset
;
7494 struct elf_link_hash_entry
*h
;
7496 /* An external symbol. */
7497 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
7498 h
= elf_sym_hashes (abfd
)[indx
];
7499 BFD_ASSERT (h
!= NULL
);
7501 if (h
->root
.type
!= bfd_link_hash_defined
7502 && h
->root
.type
!= bfd_link_hash_defweak
)
7503 /* This appears to be a reference to an undefined
7504 symbol. Just ignore it--it will be caught by the
7505 regular reloc processing. */
7508 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
7510 sym_sec
= h
->root
.u
.def
.section
;
7511 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
7512 elf_section_data (sym_sec
)->sec_info
,
7513 h
->root
.u
.def
.value
);
7514 symval
= symval
+ sym_sec
->output_section
->vma
7515 + sym_sec
->output_offset
;
7518 symval
= (h
->root
.u
.def
.value
7519 + h
->root
.u
.def
.section
->output_section
->vma
7520 + h
->root
.u
.def
.section
->output_offset
);
7523 addend
= irel
->r_addend
;
7525 foff
= (symval
+ addend
7526 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
7531 /* Convert a 32-bit instruction to 16-bit one.
7532 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
7533 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
7534 type of INSN16. Return 1 if successful. */
7537 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7540 uint16_t insn16
= 0;
7542 unsigned long mach
= bfd_get_mach (abfd
);
7544 if (N32_SH5 (insn
) != 0)
7547 switch (N32_SUB5 (insn
))
7549 case N32_ALU1_ADD_SLLI
:
7550 case N32_ALU1_ADD_SRLI
:
7551 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7553 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
7555 insn_type
= NDS32_INSN_ADD333
;
7557 else if (N32_IS_RT4 (insn
))
7559 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7560 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
7561 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7562 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
7563 insn_type
= NDS32_INSN_ADD45
;
7567 case N32_ALU1_SUB_SLLI
:
7568 case N32_ALU1_SUB_SRLI
:
7569 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7571 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
7573 insn_type
= NDS32_INSN_SUB333
;
7575 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7577 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
7578 insn_type
= NDS32_INSN_SUB45
;
7582 case N32_ALU1_AND_SLLI
:
7583 case N32_ALU1_AND_SRLI
:
7584 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
7585 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7586 && N32_IS_RB3 (insn
))
7588 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7589 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
7590 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7591 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
7593 insn_type
= NDS32_INSN_AND33
;
7597 case N32_ALU1_XOR_SLLI
:
7598 case N32_ALU1_XOR_SRLI
:
7599 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
7600 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7601 && N32_IS_RB3 (insn
))
7603 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7604 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7605 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7606 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7608 insn_type
= NDS32_INSN_XOR33
;
7612 case N32_ALU1_OR_SLLI
:
7613 case N32_ALU1_OR_SRLI
:
7614 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
7615 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7616 && N32_IS_RB3 (insn
))
7618 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7619 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7620 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7621 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7623 insn_type
= NDS32_INSN_OR33
;
7627 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
7628 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
7629 && N32_RA5 (insn
) == N32_RB5 (insn
))
7631 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
7632 insn_type
= NDS32_INSN_NOT33
;
7636 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7638 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7639 insn_type
= NDS32_INSN_SRAI45
;
7644 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7646 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7647 insn_type
= NDS32_INSN_SRLI45
;
7652 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
7654 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7656 insn_type
= NDS32_INSN_SLLI333
;
7661 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7663 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7664 insn_type
= NDS32_INSN_ZEH33
;
7669 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7671 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7672 insn_type
= NDS32_INSN_SEB33
;
7677 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7679 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7680 insn_type
= NDS32_INSN_SEH33
;
7685 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7688 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7689 insn_type
= NDS32_INSN_SLT45
;
7694 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7697 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7698 insn_type
= NDS32_INSN_SLTS45
;
7703 if ((insn16
& 0x8000) == 0)
7709 *pinsn_type
= insn_type
;
7714 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7717 uint16_t insn16
= 0;
7719 unsigned long mach
= bfd_get_mach (abfd
);
7721 /* TODO: bset, bclr, btgl, btst. */
7722 if (__GF (insn
, 6, 4) != 0)
7725 switch (N32_IMMU (insn
, 6))
7728 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7729 && N32_IS_RB3 (insn
))
7731 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7732 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7733 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7734 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7736 insn_type
= NDS32_INSN_MUL33
;
7740 if ((insn16
& 0x8000) == 0)
7746 *pinsn_type
= insn_type
;
7751 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7755 uint16_t insn16
= 0;
7757 unsigned long mach
= bfd_get_mach (abfd
);
7759 /* Decode 32-bit instruction. */
7760 if (insn
& 0x80000000)
7762 /* Not 32-bit insn. */
7766 op6
= N32_OP6 (insn
);
7768 /* Convert it to 16-bit instruction. */
7772 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7774 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7775 insn_type
= NDS32_INSN_MOVI55
;
7777 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7778 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7780 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7781 N32_IMM20S (insn
) - 16);
7782 insn_type
= NDS32_INSN_MOVPI45
;
7787 if (N32_IMM15S (insn
) == 0)
7789 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7790 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7792 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7794 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7795 insn_type
= NDS32_INSN_MOV55
;
7798 else if (N32_IMM15S (insn
) > 0)
7800 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7802 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7804 insn_type
= NDS32_INSN_ADDI333
;
7806 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7807 && N32_IMM15S (insn
) < 32)
7809 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7810 insn_type
= NDS32_INSN_ADDI45
;
7812 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7813 && N32_RT5 (insn
) == N32_RA5 (insn
)
7814 && N32_IMM15S (insn
) < 512)
7816 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7817 insn_type
= NDS32_INSN_ADDI10_SP
;
7819 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7820 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7821 && (N32_IMM15S (insn
) % 4 == 0))
7823 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7824 N32_IMM15S (insn
) >> 2);
7825 insn_type
= NDS32_INSN_ADDRI36_SP
;
7831 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7833 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7834 0 - N32_IMM15S (insn
));
7835 insn_type
= NDS32_INSN_SUBI333
;
7837 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7838 && N32_IMM15S (insn
) > -32)
7840 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7841 0 - N32_IMM15S (insn
));
7842 insn_type
= NDS32_INSN_SUBI45
;
7844 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7845 && N32_RT5 (insn
) == N32_RA5 (insn
)
7846 && N32_IMM15S (insn
) >= -512)
7848 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7849 insn_type
= NDS32_INSN_ADDI10_SP
;
7855 if (N32_IMM15S (insn
) == 0)
7857 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7858 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7860 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7862 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7863 insn_type
= NDS32_INSN_MOV55
;
7869 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7870 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7872 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7873 insn_type
= NDS32_INSN_NEG33
;
7878 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7880 if (N32_IMM15U (insn
) == 1)
7882 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7883 insn_type
= NDS32_INSN_XLSB33
;
7885 else if (N32_IMM15U (insn
) == 0x7ff)
7887 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7888 insn_type
= NDS32_INSN_X11B33
;
7890 else if (N32_IMM15U (insn
) == 0xff)
7892 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7893 insn_type
= NDS32_INSN_ZEB33
;
7895 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7896 && N32_IMM15U (insn
) < 256)
7898 int imm15u
= N32_IMM15U (insn
);
7900 if (__builtin_popcount (imm15u
) == 1)
7903 int imm3u
= __builtin_ctz (imm15u
);
7905 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7906 insn_type
= NDS32_INSN_BMSKI33
;
7908 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7911 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7913 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7914 insn_type
= NDS32_INSN_FEXTI33
;
7921 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7922 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7924 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7925 insn_type
= NDS32_INSN_SLTI45
;
7930 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7931 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7933 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7934 insn_type
= NDS32_INSN_SLTSI45
;
7939 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7941 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7942 insn_type
= NDS32_INSN_LWI450
;
7944 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7945 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7947 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7949 insn_type
= NDS32_INSN_LWI333
;
7951 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7952 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7954 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7955 insn_type
= NDS32_INSN_LWI37
;
7957 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7958 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7960 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7961 insn_type
= NDS32_INSN_LWI37_SP
;
7963 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7964 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7966 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7967 N32_IMM15S (insn
) + 32);
7968 insn_type
= NDS32_INSN_LWI45_FE
;
7973 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7975 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7976 insn_type
= NDS32_INSN_SWI450
;
7978 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7979 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7981 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7983 insn_type
= NDS32_INSN_SWI333
;
7985 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7986 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7988 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7989 insn_type
= NDS32_INSN_SWI37
;
7991 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7992 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7994 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7995 insn_type
= NDS32_INSN_SWI37_SP
;
7999 case N32_OP6_LWI_BI
:
8000 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8001 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8003 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
8005 insn_type
= NDS32_INSN_LWI333_BI
;
8009 case N32_OP6_SWI_BI
:
8010 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8011 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8013 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
8015 insn_type
= NDS32_INSN_SWI333_BI
;
8020 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8021 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8023 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8025 insn_type
= NDS32_INSN_LHI333
;
8030 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8031 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8033 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8035 insn_type
= NDS32_INSN_SHI333
;
8040 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8041 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8043 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8045 insn_type
= NDS32_INSN_LBI333
;
8050 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8051 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8053 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8055 insn_type
= NDS32_INSN_SBI333
;
8060 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
8063 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
8066 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
8069 if ((insn
& N32_BIT (14)) == 0)
8072 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8073 && N32_RT5 (insn
) != REG_R5
)
8074 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8075 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8076 && N32_RA5 (insn
) != REG_R5
)
8077 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8078 insn_type
= NDS32_INSN_BEQS38
;
8084 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8085 && N32_RT5 (insn
) != REG_R5
)
8086 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8087 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8088 && N32_RA5 (insn
) != REG_R5
)
8089 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8090 insn_type
= NDS32_INSN_BNES38
;
8096 switch (N32_BR2_SUB (insn
))
8099 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8101 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8102 insn_type
= NDS32_INSN_BEQZ38
;
8104 else if (N32_RT5 (insn
) == REG_R15
8105 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8107 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
8108 insn_type
= NDS32_INSN_BEQZS8
;
8113 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8115 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8116 insn_type
= NDS32_INSN_BNEZ38
;
8118 else if (N32_RT5 (insn
) == REG_R15
8119 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8121 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
8122 insn_type
= NDS32_INSN_BNEZS8
;
8127 if (__GF (insn
, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn
), 9))
8129 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
8130 insn_type
= NDS32_INSN_IFCALL9
;
8137 if ((insn
& N32_BIT (24)) == 0)
8140 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
8142 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
8143 insn_type
= NDS32_INSN_J8
;
8149 if (__GF (insn
, 8, 2) != 0)
8152 switch (N32_IMMU (insn
, 5))
8155 if (N32_JREG_HINT (insn
) == 0)
8158 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
8159 insn_type
= NDS32_INSN_JR5
;
8161 else if (N32_JREG_HINT (insn
) == 1)
8164 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
8165 insn_type
= NDS32_INSN_RET5
;
8167 else if (N32_JREG_HINT (insn
) == 3)
8169 /* ifret = mov55 $sp, $sp */
8170 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
8171 insn_type
= NDS32_INSN_IFRET
;
8176 /* It's convertible when return rt5 is $lp and address
8177 translation is kept. */
8178 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
8180 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
8181 insn_type
= NDS32_INSN_JRAL5
;
8188 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
8190 /* For v3, swid above 31 are used for ex9.it. */
8191 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
8192 insn_type
= NDS32_INSN_BREAK16
;
8197 /* This instruction has no 16-bit variant. */
8202 /* Bit-15 of insn16 should be set for a valid instruction. */
8203 if ((insn16
& 0x8000) == 0)
8209 *pinsn_type
= insn_type
;
8214 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
8215 Elf_Internal_Rela
*reloc
)
8217 uint16_t insn16
= 0;
8219 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
8220 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
8223 if (!N32_IS_RT3 (insn
))
8226 switch (N32_OP6 (insn
))
8229 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8230 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8233 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8234 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8237 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
8240 if (__GF (insn
, 17, 3) == 6)
8241 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
8242 else if (__GF (insn
, 17, 3) == 7)
8243 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
8247 if ((insn16
& 0x8000) == 0)
8254 /* Convert a 16-bit instruction to 32-bit one.
8255 INSN16 it the input and PINSN it the point to output.
8256 Return non-zero on successful. Otherwise 0 is returned. */
8259 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
8261 uint32_t insn
= 0xffffffff;
8262 unsigned long mach
= bfd_get_mach (abfd
);
8264 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
8266 switch (__GF (insn16
, 9, 6))
8268 case 0x4: /* add45 */
8269 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8272 case 0x5: /* sub45 */
8273 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8276 case 0x6: /* addi45 */
8277 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8278 N16_IMM5U (insn16
));
8280 case 0x7: /* subi45 */
8281 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8282 -N16_IMM5U (insn16
));
8284 case 0x8: /* srai45 */
8285 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8286 N16_IMM5U (insn16
));
8288 case 0x9: /* srli45 */
8289 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8290 N16_IMM5U (insn16
));
8292 case 0xa: /* slli333 */
8293 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8294 N16_IMM3U (insn16
));
8296 case 0xc: /* add333 */
8297 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8300 case 0xd: /* sub333 */
8301 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8304 case 0xe: /* addi333 */
8305 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8306 N16_IMM3U (insn16
));
8308 case 0xf: /* subi333 */
8309 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8310 -N16_IMM3U (insn16
));
8312 case 0x10: /* lwi333 */
8313 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8314 N16_IMM3U (insn16
));
8316 case 0x12: /* lhi333 */
8317 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8318 N16_IMM3U (insn16
));
8320 case 0x13: /* lbi333 */
8321 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8322 N16_IMM3U (insn16
));
8324 case 0x11: /* lwi333.bi */
8325 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8326 N16_IMM3U (insn16
));
8328 case 0x14: /* swi333 */
8329 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8330 N16_IMM3U (insn16
));
8332 case 0x16: /* shi333 */
8333 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8334 N16_IMM3U (insn16
));
8336 case 0x17: /* sbi333 */
8337 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8338 N16_IMM3U (insn16
));
8340 case 0x15: /* swi333.bi */
8341 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8342 N16_IMM3U (insn16
));
8344 case 0x18: /* addri36.sp */
8345 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
8346 N16_IMM6U (insn16
) << 2);
8348 case 0x19: /* lwi45.fe */
8349 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
8350 (N16_IMM5U (insn16
) - 32));
8352 case 0x1a: /* lwi450 */
8353 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8355 case 0x1b: /* swi450 */
8356 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8359 /* These are r15 implied instructions. */
8360 case 0x30: /* slts45 */
8361 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8363 case 0x31: /* slt45 */
8364 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8366 case 0x32: /* sltsi45 */
8367 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8369 case 0x33: /* slti45 */
8370 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8372 case 0x34: /* beqzs8, bnezs8 */
8373 if (insn16
& N32_BIT (8))
8374 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
8376 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
8379 case 0x35: /* break16, ex9.it */
8380 /* Only consider range of v3 break16. */
8381 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
8384 case 0x3c: /* ifcall9 */
8385 insn
= N32_BR2 (SOP0
, 0, N16_IMM9U (insn16
));
8387 case 0x3d: /* movpi45 */
8388 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
8391 case 0x3f: /* MISC33 */
8392 switch (insn16
& 0x7)
8395 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8398 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8402 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8406 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8410 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8414 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8421 switch (insn16
& 0x7)
8424 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
8427 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8430 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8433 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8435 case 4: /* xlsb33 */
8436 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
8438 case 5: /* x11b33 */
8439 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
8441 case 6: /* bmski33 */
8442 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8443 1 << __GF (insn16
, 3, 3));
8445 case 7: /* fexti33 */
8446 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8447 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
8453 switch (__GF (insn16
, 10, 5))
8455 case 0x0: /* mov55 or ifret16 */
8456 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
8457 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
8458 insn
= N32_JREG (JR
, 0, 0, 0, 3);
8460 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
8462 case 0x1: /* movi55 */
8463 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
8465 case 0x1b: /* addi10s (V2) */
8466 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
8470 switch (__GF (insn16
, 11, 4))
8472 case 0x7: /* lwi37.fp/swi37.fp */
8473 if (insn16
& N32_BIT (7)) /* swi37.fp */
8474 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8476 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8478 case 0x8: /* beqz38 */
8479 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8481 case 0x9: /* bnez38 */
8482 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8484 case 0xa: /* beqs38/j8, implied r5 */
8485 if (N16_RT38 (insn16
) == 5)
8486 insn
= N32_JI (J
, N16_IMM8S (insn16
));
8488 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8490 case 0xb: /* bnes38 and others. */
8491 if (N16_RT38 (insn16
) == 5)
8493 switch (__GF (insn16
, 5, 3))
8496 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
8499 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
8502 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
8504 case 2: /* ex9.it imm5 */
8505 /* ex9.it had no 32-bit variantl. */
8507 case 5: /* add5.pc */
8508 /* add5.pc had no 32-bit variantl. */
8513 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8515 case 0xe: /* lwi37/swi37 */
8516 if (insn16
& (1 << 7)) /* swi37.sp */
8517 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8519 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8524 if (insn
& 0x80000000)
8534 is_sda_access_insn (unsigned long insn
)
8536 switch (N32_OP6 (insn
))
8557 static unsigned long
8558 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
8564 case R_NDS32_GOT_LO12
:
8565 case R_NDS32_GOTOFF_LO12
:
8566 case R_NDS32_PLTREL_LO12
:
8567 case R_NDS32_PLT_GOTREL_LO12
:
8568 case R_NDS32_LO12S0_RELA
:
8569 switch (N32_OP6 (insn
))
8573 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
8577 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), N32_BIT (19));
8581 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
8585 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), N32_BIT (19));
8590 case R_NDS32_LO12S1_RELA
:
8591 switch (N32_OP6 (insn
))
8595 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
8599 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (18));
8603 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (19));
8608 case R_NDS32_LO12S2_RELA
:
8609 switch (N32_OP6 (insn
))
8613 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
8617 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
8622 case R_NDS32_LO12S2_DP_RELA
:
8623 case R_NDS32_LO12S2_SP_RELA
:
8624 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
8634 /* Linker hasn't found the correct merge section for non-section symbol
8635 in relax time, this work is left to the function elf_link_input_bfd().
8636 So for non-section symbol, _bfd_merged_section_offset is also needed
8637 to find the correct symbol address. */
8640 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
8641 asection
**psec
, Elf_Internal_Rela
*rel
)
8643 asection
*sec
= *psec
;
8646 relocation
= (sec
->output_section
->vma
8647 + sec
->output_offset
+ sym
->st_value
);
8648 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
8650 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
8652 _bfd_merged_section_offset (abfd
, psec
,
8653 elf_section_data (sec
)->sec_info
,
8654 sym
->st_value
+ rel
->r_addend
);
8657 _bfd_merged_section_offset (abfd
, psec
,
8658 elf_section_data (sec
)->sec_info
,
8659 sym
->st_value
) + rel
->r_addend
;
8663 /* If we have changed the section, and our original section is
8664 marked with SEC_EXCLUDE, it means that the original
8665 SEC_MERGE section has been completely subsumed in some
8666 other SEC_MERGE section. In this case, we need to leave
8667 some info around for --emit-relocs. */
8668 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
8669 sec
->kept_section
= *psec
;
8672 rel
->r_addend
-= relocation
;
8673 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8679 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8680 Elf_Internal_Sym
*isymbuf
,
8681 Elf_Internal_Shdr
*symtab_hdr
)
8683 bfd_signed_vma foff
;
8684 bfd_vma symval
, addend
;
8685 Elf_Internal_Rela irel_fn
;
8686 Elf_Internal_Sym
*isym
;
8689 /* Get the value of the symbol referred to by the reloc. */
8690 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8692 /* A local symbol. */
8693 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8695 if (isym
->st_shndx
== SHN_UNDEF
)
8696 sym_sec
= bfd_und_section_ptr
;
8697 else if (isym
->st_shndx
== SHN_ABS
)
8698 sym_sec
= bfd_abs_section_ptr
;
8699 else if (isym
->st_shndx
== SHN_COMMON
)
8700 sym_sec
= bfd_com_section_ptr
;
8702 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8703 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8704 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8705 addend
= irel_fn
.r_addend
;
8710 struct elf_link_hash_entry
*h
;
8712 /* An external symbol. */
8713 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8714 h
= elf_sym_hashes (abfd
)[indx
];
8715 BFD_ASSERT (h
!= NULL
);
8717 while (h
->root
.type
== bfd_link_hash_indirect
8718 || h
->root
.type
== bfd_link_hash_warning
)
8719 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8721 if (h
->root
.type
!= bfd_link_hash_defined
8722 && h
->root
.type
!= bfd_link_hash_defweak
)
8723 /* This appears to be a reference to an undefined
8724 symbol. Just ignore it--it will be caught by the
8725 regular reloc processing. */
8728 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8730 sym_sec
= h
->root
.u
.def
.section
;
8731 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8732 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8733 symval
= symval
+ sym_sec
->output_section
->vma
8734 + sym_sec
->output_offset
;
8737 symval
= (h
->root
.u
.def
.value
8738 + h
->root
.u
.def
.section
->output_section
->vma
8739 + h
->root
.u
.def
.section
->output_offset
);
8740 addend
= irel
->r_addend
;
8743 foff
= symval
+ addend
;
8749 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8750 asection
*sec
, Elf_Internal_Rela
*rel
)
8753 unsigned short insn16
;
8755 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8757 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8758 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8759 if (insn16
== NDS32_NOP16
)
8764 /* It checks whether the instruction could be converted to
8765 16-bit form and returns the converted one.
8767 `internal_relocs' is supposed to be sorted. */
8770 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8771 Elf_Internal_Rela
*reloc
,
8772 Elf_Internal_Rela
*internal_relocs
,
8773 Elf_Internal_Rela
*irelend
,
8776 #define NORMAL_32_TO_16 (1 << 0)
8777 #define SPECIAL_32_TO_16 (1 << 1)
8778 bfd_byte
*contents
= NULL
;
8782 Elf_Internal_Rela
*pc_rel
;
8783 Elf_Internal_Shdr
*symtab_hdr
;
8784 Elf_Internal_Sym
*isymbuf
= NULL
;
8788 if (reloc
->r_offset
+ 4 > sec
->size
)
8791 offset
= reloc
->r_offset
;
8793 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8795 insn
= bfd_getb32 (contents
+ offset
);
8797 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8798 convert_type
= NORMAL_32_TO_16
;
8799 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8800 convert_type
= SPECIAL_32_TO_16
;
8804 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8805 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8808 /* Find the first relocation of the same relocation-type,
8809 so we iteratie them forward. */
8811 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8814 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8816 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8817 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8818 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8819 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8821 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8822 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8827 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8829 /* movi => movi55 */
8830 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8832 /* mem_addr is unsigned, but the value should
8833 be between [-16, 15]. */
8834 if ((mem_addr
+ 0x10) >> 5)
8838 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8839 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8841 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8842 because it can be relaxed to addi for TLS_LE_ADD. */
8845 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8846 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8847 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8848 && convert_type
== SPECIAL_32_TO_16
)
8851 We've selected a best fp-base for this access, so we can
8852 always resolve it anyway. Do nothing. */
8855 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8856 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8857 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8858 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8859 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8860 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8862 /* Prevent unresolved addi instruction translate
8863 to addi45 or addi333. */
8866 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8868 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8869 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8879 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8880 Elf_Internal_Rela
*reloc
,
8881 Elf_Internal_Rela
*internal_relocs
,
8882 Elf_Internal_Rela
*irelend
,
8883 unsigned short insn16
)
8885 Elf_Internal_Rela
*pc_rel
;
8888 offset
= reloc
->r_offset
;
8889 bfd_putb16 (insn16
, contents
+ offset
);
8890 /* Find the first relocation of the same relocation-type,
8891 so we iteratie them forward. */
8893 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8896 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8898 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8899 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8900 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8903 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8905 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8907 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8908 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8910 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8911 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8912 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8914 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8915 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8917 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8921 /* Find a relocation of type specified by `reloc_type'
8922 of the same r_offset with reloc.
8923 If not found, return irelend.
8925 Assuming relocations are sorted by r_offset,
8926 we find the relocation from `reloc' backward untill relocs,
8927 or find it from `reloc' forward untill irelend. */
8929 static Elf_Internal_Rela
*
8930 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8931 Elf_Internal_Rela
*relocs
,
8932 Elf_Internal_Rela
*irelend
,
8933 enum elf_nds32_reloc_type reloc_type
)
8935 Elf_Internal_Rela
*rel_t
;
8937 /* Find backward. */
8939 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8941 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8944 /* We didn't find it backward. Try find it forward. */
8946 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8948 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8954 /* Find a relocation of specified type and offset.
8955 `reloc' is just a refence point to find a relocation at specified offset.
8956 If not found, return irelend.
8958 Assuming relocations are sorted by r_offset,
8959 we find the relocation from `reloc' backward untill relocs,
8960 or find it from `reloc' forward untill irelend. */
8962 static Elf_Internal_Rela
*
8963 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8964 Elf_Internal_Rela
*relocs
,
8965 Elf_Internal_Rela
*irelend
,
8966 enum elf_nds32_reloc_type reloc_type
,
8969 Elf_Internal_Rela
*rel_t
= NULL
;
8971 /* First, we try to find a relocation of offset `offset_p',
8972 and then we use find_relocs_at_address to find specific type. */
8974 if (reloc
->r_offset
> offset_p
)
8976 /* Find backward. */
8978 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8981 else if (reloc
->r_offset
< offset_p
)
8985 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8992 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8995 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8998 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8999 struct nds32_elf_blank
9001 /* Where the blank begins. */
9003 /* The size of the blank. */
9005 /* The accumulative size before this blank. */
9007 nds32_elf_blank_t
*next
;
9008 nds32_elf_blank_t
*prev
;
9011 static nds32_elf_blank_t
*blank_free_list
= NULL
;
9013 static nds32_elf_blank_t
*
9014 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
9016 nds32_elf_blank_t
*blank_t
;
9018 if (blank_free_list
)
9020 blank_t
= blank_free_list
;
9021 blank_free_list
= blank_free_list
->next
;
9024 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
9026 if (blank_t
== NULL
)
9029 blank_t
->offset
= offset_p
;
9030 blank_t
->size
= size_p
;
9031 blank_t
->total_size
= 0;
9032 blank_t
->next
= NULL
;
9033 blank_t
->prev
= NULL
;
9039 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
9041 if (blank_free_list
)
9043 blank_free_list
->prev
= blank_p
;
9044 blank_p
->next
= blank_free_list
;
9047 blank_p
->next
= NULL
;
9049 blank_p
->prev
= NULL
;
9050 blank_free_list
= blank_p
;
9054 clean_nds32_elf_blank (void)
9056 nds32_elf_blank_t
*blank_t
;
9058 while (blank_free_list
)
9060 blank_t
= blank_free_list
;
9061 blank_free_list
= blank_free_list
->next
;
9066 static nds32_elf_blank_t
*
9067 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
9069 nds32_elf_blank_t
*blank_t
;
9075 while (blank_t
&& addr
< blank_t
->offset
)
9076 blank_t
= blank_t
->prev
;
9077 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
9078 blank_t
= blank_t
->next
;
9084 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9087 nds32_elf_blank_t
*blank_t
;
9089 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9096 if (addr
< blank_t
->offset
+ blank_t
->size
)
9097 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
9099 return blank_t
->total_size
+ blank_t
->size
;
9103 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
9105 nds32_elf_blank_t
*blank_t
, *blank_t2
;
9109 *blank_p
= create_nds32_elf_blank (addr
, len
);
9110 return *blank_p
? TRUE
: FALSE
;
9113 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9115 if (blank_t
== NULL
)
9117 blank_t
= create_nds32_elf_blank (addr
, len
);
9120 while ((*blank_p
)->prev
!= NULL
)
9121 *blank_p
= (*blank_p
)->prev
;
9122 blank_t
->next
= *blank_p
;
9123 (*blank_p
)->prev
= blank_t
;
9124 (*blank_p
) = blank_t
;
9128 if (addr
< blank_t
->offset
+ blank_t
->size
)
9130 /* Extend the origin blank. */
9131 if (addr
+ len
> blank_t
->offset
+ blank_t
->size
)
9132 blank_t
->size
= addr
+ len
- blank_t
->offset
;
9136 blank_t2
= create_nds32_elf_blank (addr
, len
);
9141 blank_t
->next
->prev
= blank_t2
;
9142 blank_t2
->next
= blank_t
->next
;
9144 blank_t2
->prev
= blank_t
;
9145 blank_t
->next
= blank_t2
;
9146 *blank_p
= blank_t2
;
9153 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9156 nds32_elf_blank_t
*blank_t
;
9158 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
9165 blank_t
->total_size
= 0;
9166 blank_t
= blank_t
->next
;
9171 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
9172 blank_t
= blank_t
->next
;
9179 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
9181 nds32_elf_blank_t
*blank_t
;
9182 bfd_vma total_size
= 0;
9188 while (blank_t
->prev
)
9189 blank_t
= blank_t
->prev
;
9192 blank_t
->total_size
= total_size
;
9193 total_size
+= blank_t
->size
;
9194 blank_t
= blank_t
->next
;
9199 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
9200 nds32_elf_blank_t
*blank_p
)
9202 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
9203 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
9204 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
9205 unsigned int sec_shndx
; /* The section the be relaxed. */
9206 bfd_byte
*contents
; /* Contents data of iterating section. */
9207 Elf_Internal_Rela
*internal_relocs
;
9208 Elf_Internal_Rela
*irel
;
9209 Elf_Internal_Rela
*irelend
;
9210 struct elf_link_hash_entry
**sym_hashes
;
9211 struct elf_link_hash_entry
**end_hashes
;
9212 unsigned int symcount
;
9214 nds32_elf_blank_t
*blank_t
;
9215 nds32_elf_blank_t
*blank_t2
;
9216 nds32_elf_blank_t
*blank_head
;
9218 blank_head
= blank_t
= blank_p
;
9219 while (blank_head
->prev
!= NULL
)
9220 blank_head
= blank_head
->prev
;
9221 while (blank_t
->next
!= NULL
)
9222 blank_t
= blank_t
->next
;
9224 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
9226 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
9227 blank_t
->next
->prev
= blank_t
;
9229 if (blank_head
->offset
> 0)
9231 blank_head
->prev
= create_nds32_elf_blank (0, 0);
9232 blank_head
->prev
->next
= blank_head
;
9233 blank_head
= blank_head
->prev
;
9236 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
9238 /* The deletion must stop at the next ALIGN reloc for an alignment
9239 power larger than the number of bytes we are deleting. */
9241 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9242 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
9247 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9248 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
9249 symtab_hdr
->contents
= (bfd_byte
*) isym
;
9252 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
9255 blank_t
= blank_head
;
9256 calc_nds32_blank_total (blank_head
);
9258 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
9260 /* Adjust all the relocs. */
9262 /* Relocations MUST be kept in memory, because relaxation adjust them. */
9263 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
9264 TRUE
/* keep_memory */);
9265 irelend
= internal_relocs
+ sect
->reloc_count
;
9267 blank_t
= blank_head
;
9268 blank_t2
= blank_head
;
9270 if (!(sect
->flags
& SEC_RELOC
))
9273 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
9275 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
9279 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
9280 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
9281 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9283 unsigned long val
= 0;
9285 long before
, between
;
9288 switch (ELF32_R_TYPE (irel
->r_info
))
9291 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
9293 case R_NDS32_DIFF16
:
9294 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
9296 case R_NDS32_DIFF32
:
9297 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
9298 /* Get the signed bit and mask for the high part. The
9299 gcc will alarm when right shift 32-bit since the
9300 type size of long may be 32-bit. */
9301 mask
= 0 - (val
>> 31);
9303 offset
= (val
| (mask
- 0xffffffff));
9312 0 |encoded in location|
9313 |------------|-------------------|---------
9315 -- before ---| *****************
9316 --------------------- between ---|
9318 We only care how much data are relax between DIFF,
9321 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9322 between
= get_nds32_elf_blank_total (&blank_t
,
9323 irel
->r_addend
+ offset
, 0);
9324 if (between
== before
)
9325 goto done_adjust_diff
;
9327 switch (ELF32_R_TYPE (irel
->r_info
))
9330 bfd_put_8 (abfd
, offset
- (between
- before
),
9331 contents
+ irel
->r_offset
);
9333 case R_NDS32_DIFF16
:
9334 bfd_put_16 (abfd
, offset
- (between
- before
),
9335 contents
+ irel
->r_offset
);
9337 case R_NDS32_DIFF32
:
9338 bfd_put_32 (abfd
, offset
- (between
- before
),
9339 contents
+ irel
->r_offset
);
9343 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
9344 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9347 unsigned int len
= 0;
9348 unsigned long before
, between
;
9351 val
= _bfd_read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
9354 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9355 between
= get_nds32_elf_blank_total (&blank_t
,
9356 irel
->r_addend
+ val
, 0);
9357 if (between
== before
)
9358 goto done_adjust_diff
;
9360 p
= contents
+ irel
->r_offset
;
9362 memset (p
, 0x80, len
);
9364 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
9372 raddr
= irel
->r_offset
;
9373 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
9376 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
9378 if (blank_t2
&& blank_t2
->next
9379 && (blank_t2
->offset
> raddr
9380 || blank_t2
->next
->offset
<= raddr
))
9382 (_("%pB: error: search_nds32_elf_blank reports wrong node"),
9385 /* Mark reloc in deleted portion as NONE.
9386 For some relocs like R_NDS32_LABEL that doesn't modify the
9387 content in the section. R_NDS32_LABEL doesn't belong to the
9388 instruction in the section, so we should preserve it. */
9389 if (raddr
>= blank_t2
->offset
9390 && raddr
< blank_t2
->offset
+ blank_t2
->size
9391 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
9392 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
9393 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
9394 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
9395 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
9396 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
9398 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
9404 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
9405 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
9406 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
9409 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
9410 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
9411 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
9413 if (irel
->r_addend
<= sec
->size
)
9415 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
9420 /* Adjust the local symbols defined in this section. */
9421 blank_t
= blank_head
;
9422 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
9424 if (isym
->st_shndx
== sec_shndx
)
9426 if (isym
->st_value
<= sec
->size
)
9429 bfd_vma orig_addr
= isym
->st_value
;
9431 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
9432 isym
->st_value
-= ahead
;
9434 /* Adjust function size. */
9435 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
9436 && isym
->st_size
> 0)
9438 get_nds32_elf_blank_total
9439 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
9444 /* Now adjust the global symbols defined in this section. */
9445 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
9446 - symtab_hdr
->sh_info
);
9447 sym_hashes
= elf_sym_hashes (abfd
);
9448 end_hashes
= sym_hashes
+ symcount
;
9449 blank_t
= blank_head
;
9450 for (; sym_hashes
< end_hashes
; sym_hashes
++)
9452 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
9454 if ((sym_hash
->root
.type
== bfd_link_hash_defined
9455 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
9456 && sym_hash
->root
.u
.def
.section
== sec
)
9458 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
9461 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
9463 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
9464 sym_hash
->root
.u
.def
.value
-= ahead
;
9466 /* Adjust function size. */
9467 if (sym_hash
->type
== STT_FUNC
)
9469 get_nds32_elf_blank_total
9470 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
9476 contents
= elf_section_data (sec
)->this_hdr
.contents
;
9477 blank_t
= blank_head
;
9478 while (blank_t
->next
)
9480 /* Actually delete the bytes. */
9482 /* If current blank is the last blank overlap with current section,
9483 go to finish process. */
9484 if (sec
->size
<= (blank_t
->next
->offset
))
9487 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9488 contents
+ blank_t
->offset
+ blank_t
->size
,
9489 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
9491 blank_t
= blank_t
->next
;
9494 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
9496 /* There are remaining code between blank and section boundary.
9497 Move the remaining code to appropriate location. */
9498 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9499 contents
+ blank_t
->offset
+ blank_t
->size
,
9500 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
9501 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
9504 /* This blank is not entirely included in the section,
9505 reduce the section size by only part of the blank size. */
9506 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
9510 blank_t
= blank_head
;
9511 blank_head
= blank_head
->next
;
9512 remove_nds32_elf_blank (blank_t
);
9518 /* Get the contents of a section. */
9521 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
9522 bfd_byte
**contents_p
, bfd_boolean cache
)
9524 /* Get the section contents. */
9525 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
9526 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
9529 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
9532 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
9538 /* Get the contents of the internal symbol of abfd. */
9541 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
9542 Elf_Internal_Sym
**isymbuf_p
)
9544 Elf_Internal_Shdr
*symtab_hdr
;
9545 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9547 /* Read this BFD's local symbols if we haven't done so already. */
9548 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
9550 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
9551 if (*isymbuf_p
== NULL
)
9553 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9554 symtab_hdr
->sh_info
, 0,
9556 if (*isymbuf_p
== NULL
)
9560 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
9565 /* Range of small data. */
9566 static bfd_vma sdata_range
[2][2];
9567 static bfd_vma
const sdata_init_range
[2] =
9568 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
9571 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
9572 bfd_byte
*contents
, bfd_vma addr
)
9574 unsigned long insn
= bfd_getb32 (contents
+ addr
);
9576 if (insn
& 0x80000000)
9582 /* Set the gp relax range. We have to measure the safe range
9583 to do gp relaxation. */
9586 relax_range_measurement (bfd
*abfd
)
9588 asection
*sec_f
, *sec_b
;
9589 /* For upper bound. */
9590 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
9592 static int decide_relax_range
= 0;
9594 int range_number
= ARRAY_SIZE (sdata_init_range
);
9596 if (decide_relax_range
)
9598 decide_relax_range
= 1;
9600 if (sda_rela_sec
== NULL
)
9602 /* Since there is no data sections, we assume the range is page size. */
9603 for (i
= 0; i
< range_number
; i
++)
9605 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9606 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9611 /* Get the biggest alignment power after the gp located section. */
9612 sec_f
= sda_rela_sec
->output_section
;
9613 sec_b
= sec_f
->next
;
9615 while (sec_b
!= NULL
)
9617 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9618 align
= (1 << sec_b
->alignment_power
);
9619 sec_b
= sec_b
->next
;
9622 /* I guess we can not determine the section before
9623 gp located section, so we assume the align is max page size. */
9624 for (i
= 0; i
< range_number
; i
++)
9626 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9627 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9628 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9629 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9633 /* These are macros used to check flags encoded in r_addend.
9634 They are only used by nds32_elf_relax_section (). */
9635 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9636 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9637 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9638 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9640 static const char * unrecognized_reloc_msg
=
9641 /* xgettext:c-format */
9642 N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64
);
9644 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9647 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9648 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9649 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9650 Elf_Internal_Shdr
*symtab_hdr
)
9652 /* There are 3 variations for LONGCALL1
9653 case 4-4-2; 16-bit on, optimize off or optimize for space
9654 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9655 ori ta, ta, lo12(symbol) ; LO12S0
9658 case 4-4-4; 16-bit off, optimize don't care
9659 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9660 ori ta, ta, lo12(symbol) ; LO12S0
9663 case 4-4-4; 16-bit on, optimize for speed
9664 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9665 ori ta, ta, lo12(symbol) ; LO12S0
9667 Check code for -mlong-calls output. */
9669 /* Get the reloc for the address from which the register is
9670 being loaded. This reloc will tell us which function is
9671 actually being called. */
9674 int seq_len
; /* Original length of instruction sequence. */
9676 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9677 bfd_signed_vma foff
;
9680 irelend
= internal_relocs
+ sec
->reloc_count
;
9681 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9682 laddr
= irel
->r_offset
;
9683 *insn_len
= seq_len
;
9685 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9686 R_NDS32_HI20_RELA
, laddr
);
9687 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9688 R_NDS32_LO12S0_ORI_RELA
,
9691 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9693 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL1",
9694 (uint64_t) irel
->r_offset
);
9698 /* Get the value of the symbol referred to by the reloc. */
9699 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9701 /* This condition only happened when symbol is undefined. */
9703 || foff
< -CONSERVATIVE_24BIT_S1
9704 || foff
>= CONSERVATIVE_24BIT_S1
)
9707 /* Relax to: jal symbol; 25_PCREL. */
9708 /* For simplicity of coding, we are going to modify the section
9709 contents, the section relocs, and the BFD symbol table. We
9710 must tell the rest of the code not to free up this
9711 information. It would be possible to instead create a table
9712 of changes which have to be made, as is done in coff-mips.c;
9713 that would be more work, but would require less memory when
9714 the linker is run. */
9716 /* Replace the long call with a jal. */
9717 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9718 R_NDS32_25_PCREL_RELA
);
9719 irel
->r_addend
= hi_irelfn
->r_addend
;
9721 /* We don't resolve this here but resolve it in relocate_section. */
9723 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9726 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9728 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9733 insn16
= NDS32_NOP16
;
9734 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9736 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9737 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9743 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9744 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9747 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9748 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9749 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9750 Elf_Internal_Shdr
*symtab_hdr
)
9752 /* bltz rt, .L1 ; LONGCALL2
9753 jal symbol ; 25_PCREL
9756 /* Get the reloc for the address from which the register is
9757 being loaded. This reloc will tell us which function is
9758 actually being called. */
9762 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9763 bfd_signed_vma foff
;
9765 irelend
= internal_relocs
+ sec
->reloc_count
;
9766 laddr
= irel
->r_offset
;
9768 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9769 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9771 if (i1_irelfn
== irelend
)
9773 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL2",
9774 (uint64_t) irel
->r_offset
);
9778 insn
= bfd_getb32 (contents
+ laddr
);
9780 /* Get the value of the symbol referred to by the reloc. */
9781 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
);
9784 || foff
< -CONSERVATIVE_16BIT_S1
9785 || foff
>= CONSERVATIVE_16BIT_S1
)
9788 /* Relax to bgezal rt, label ; 17_PCREL
9789 or bltzal rt, label ; 17_PCREL */
9791 /* Convert to complimentary conditional call. */
9792 insn
= CONVERT_CONDITION_CALL (insn
);
9794 /* For simplicity of coding, we are going to modify the section
9795 contents, the section relocs, and the BFD symbol table. We
9796 must tell the rest of the code not to free up this
9797 information. It would be possible to instead create a table
9798 of changes which have to be made, as is done in coff-mips.c;
9799 that would be more work, but would require less memory when
9800 the linker is run. */
9802 /* Clean unnessary relocations. */
9804 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9806 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9807 R_NDS32_17_PCREL_RELA
, laddr
);
9808 if (cond_irelfn
!= irelend
)
9809 cond_irelfn
->r_info
=
9810 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9812 /* Replace the long call with a bgezal. */
9813 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9814 R_NDS32_17_PCREL_RELA
);
9815 irel
->r_addend
= i1_irelfn
->r_addend
;
9817 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9823 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9826 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9827 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9828 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9829 Elf_Internal_Shdr
*symtab_hdr
)
9831 /* There are 3 variations for LONGCALL3
9832 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9833 bltz rt, $1 ; LONGCALL3
9834 sethi ta, hi20(symbol) ; HI20
9835 ori ta, ta, lo12(symbol) ; LO12S0
9839 case 4-4-4-4; 16-bit off, optimize don't care
9840 bltz rt, $1 ; LONGCALL3
9841 sethi ta, hi20(symbol) ; HI20
9842 ori ta, ta, lo12(symbol) ; LO12S0
9846 case 4-4-4-4; 16-bit on, optimize for speed
9847 bltz rt, $1 ; LONGCALL3
9848 sethi ta, hi20(symbol) ; HI20
9849 ori ta, ta, lo12(symbol) ; LO12S0
9853 /* Get the reloc for the address from which the register is
9854 being loaded. This reloc will tell us which function is
9855 actually being called. */
9858 int seq_len
; /* Original length of instruction sequence. */
9860 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9861 bfd_signed_vma foff
;
9864 irelend
= internal_relocs
+ sec
->reloc_count
;
9865 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9866 laddr
= irel
->r_offset
;
9867 *insn_len
= seq_len
;
9870 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9871 R_NDS32_HI20_RELA
, laddr
+ 4);
9873 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9874 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9876 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9878 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL3",
9879 (uint64_t) irel
->r_offset
);
9883 /* Get the value of the symbol referred to by the reloc. */
9884 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9887 || foff
< -CONSERVATIVE_24BIT_S1
9888 || foff
>= CONSERVATIVE_24BIT_S1
)
9891 insn
= bfd_getb32 (contents
+ laddr
);
9892 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9894 /* Relax to bgezal rt, label ; 17_PCREL
9895 or bltzal rt, label ; 17_PCREL */
9897 /* Convert to complimentary conditional call. */
9898 insn
= CONVERT_CONDITION_CALL (insn
);
9899 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9903 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9905 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9907 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9910 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9911 R_NDS32_17_PCREL_RELA
, laddr
);
9912 if (cond_irelfn
!= irelend
)
9914 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9915 R_NDS32_17_PCREL_RELA
);
9916 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9921 insn16
= NDS32_NOP16
;
9922 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9923 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9925 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9929 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9931 /* Relax to the following instruction sequence
9932 bltz rt, $1 ; LONGCALL2
9933 jal symbol ; 25_PCREL
9937 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9939 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9940 R_NDS32_25_PCREL_RELA
);
9942 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9945 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9949 insn16
= NDS32_NOP16
;
9950 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9952 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9953 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9960 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9963 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9964 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9965 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9966 Elf_Internal_Shdr
*symtab_hdr
)
9968 /* There are 3 variations for LONGJUMP1
9969 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9970 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9971 ori ta, ta, lo12(symbol) ; LO12S0
9974 case 4-4-4; 16-bit off, optimize don't care
9975 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9976 ori ta, ta, lo12(symbol) ; LO12S0
9979 case 4-4-4; 16-bit on, optimize for speed
9980 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9981 ori ta, ta, lo12(symbol) ; LO12S0
9984 /* Get the reloc for the address from which the register is
9985 being loaded. This reloc will tell us which function is
9986 actually being called. */
9989 int seq_len
; /* Original length of instruction sequence. */
9990 int insn16_on
; /* 16-bit on/off. */
9992 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9993 bfd_signed_vma foff
;
9995 unsigned long reloc
;
9997 irelend
= internal_relocs
+ sec
->reloc_count
;
9998 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9999 laddr
= irel
->r_offset
;
10000 *insn_len
= seq_len
;
10001 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
10004 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10005 R_NDS32_HI20_RELA
, laddr
);
10007 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10008 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
10009 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
10011 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP1",
10012 (uint64_t) irel
->r_offset
);
10016 /* Get the value of the symbol referred to by the reloc. */
10017 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10020 || foff
>= CONSERVATIVE_24BIT_S1
10021 || foff
< -CONSERVATIVE_24BIT_S1
)
10025 && foff
>= -ACCURATE_8BIT_S1
10026 && foff
< ACCURATE_8BIT_S1
10027 && (seq_len
& 0x2))
10030 /* 16-bit on, but not optimized for speed. */
10031 reloc
= R_NDS32_9_PCREL_RELA
;
10033 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
10036 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10041 reloc
= R_NDS32_25_PCREL_RELA
;
10043 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
10046 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
10047 irel
->r_addend
= 0;
10050 hi_irelfn
->r_info
=
10051 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10052 lo_irelfn
->r_info
=
10053 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
10055 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
10057 insn16
= NDS32_NOP16
;
10058 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10059 lo_irelfn
->r_info
=
10060 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10062 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10068 /* Revert condition branch. This function does not check if the input
10069 instruction is condition branch or not. */
10072 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
10073 uint16_t *re_insn16
, uint32_t *re_insn
)
10075 uint32_t comp_insn
= 0;
10076 uint16_t comp_insn16
= 0;
10080 if (N32_OP6 (insn
) == N32_OP6_BR1
)
10083 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
10084 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
10086 /* Insn can be contracted to 16-bit implied r5. */
10088 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
10089 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10092 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
10094 /* bnec $ta, imm11, label. */
10095 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
10099 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
10100 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
10101 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
10103 if (N32_IS_RT3 (insn
))
10105 /* Insn can be contracted to 16-bit. */
10107 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
10108 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10110 else if (N32_RT5 (insn
) == REG_R15
)
10112 /* Insn can be contracted to 16-bit. */
10114 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
10121 switch ((insn16
& 0xf000) >> 12)
10124 /* beqz38 or bnez38 */
10125 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10126 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
10127 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
10131 /* beqs38 or bnes38 */
10132 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10133 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
10134 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
10139 /* beqzS8 or bnezS8 */
10140 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
10141 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
10142 comp_insn
|= REG_R15
<< 20;
10149 if (comp_insn
&& re_insn
)
10150 *re_insn
= comp_insn
;
10151 if (comp_insn16
&& re_insn16
)
10152 *re_insn16
= comp_insn16
;
10155 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
10158 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10159 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10160 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10161 Elf_Internal_Shdr
*symtab_hdr
)
10163 /* There are 3 variations for LONGJUMP2
10164 case 2-4; 1st insn convertible, 16-bit on,
10165 optimize off or optimize for space
10166 bnes38 rt, ra, $1 ; LONGJUMP2
10170 case 4-4; 1st insn not convertible
10171 bne rt, ra, $1 ; LONGJUMP2
10175 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10176 bne rt, ra, $1 ; LONGJUMP2
10180 /* Get the reloc for the address from which the register is
10181 being loaded. This reloc will tell us which function is
10182 actually being called. */
10185 int seq_len
; /* Original length of instruction sequence. */
10186 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
10189 bfd_signed_vma foff
;
10190 uint32_t insn
, re_insn
= 0;
10191 uint16_t insn16
, re_insn16
= 0;
10192 unsigned long reloc
, cond_reloc
;
10194 enum elf_nds32_reloc_type checked_types
[] =
10195 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10197 irelend
= internal_relocs
+ sec
->reloc_count
;
10198 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10199 laddr
= irel
->r_offset
;
10200 *insn_len
= seq_len
;
10201 first_size
= (seq_len
== 6) ? 2 : 4;
10204 find_relocs_at_address_addr (irel
, internal_relocs
,
10205 irelend
, R_NDS32_25_PCREL_RELA
,
10206 laddr
+ first_size
);
10208 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10211 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10212 checked_types
[i
], laddr
);
10213 if (cond_irelfn
!= irelend
)
10217 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
10219 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP2",
10220 (uint64_t) irel
->r_offset
);
10224 /* Get the value of the symbol referred to by the reloc. */
10225 foff
= calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
);
10227 || foff
< -CONSERVATIVE_16BIT_S1
10228 || foff
>= CONSERVATIVE_16BIT_S1
)
10231 /* Get the all corresponding instructions. */
10232 if (first_size
== 4)
10234 insn
= bfd_getb32 (contents
+ laddr
);
10235 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10239 insn16
= bfd_getb16 (contents
+ laddr
);
10240 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10243 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
10244 && foff
< ACCURATE_8BIT_S1
- first_size
)
10246 if (first_size
== 4)
10248 /* Don't convert it to 16-bit now, keep this as relaxable for
10249 ``label reloc; INSN16''. */
10251 /* Save comp_insn32 to buffer. */
10252 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10254 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10255 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10256 cond_reloc
= R_NDS32_INSN16
;
10260 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10262 reloc
= R_NDS32_9_PCREL_RELA
;
10263 cond_reloc
= R_NDS32_NONE
;
10266 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10267 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10268 && foff
< ACCURATE_14BIT_S1
- first_size
))
10270 /* beqs label ; 15_PCREL */
10271 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10273 reloc
= R_NDS32_15_PCREL_RELA
;
10274 cond_reloc
= R_NDS32_NONE
;
10276 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10277 && foff
>= -CONSERVATIVE_16BIT_S1
10278 && foff
< CONSERVATIVE_16BIT_S1
)
10280 /* beqz label ; 17_PCREL */
10281 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10283 reloc
= R_NDS32_17_PCREL_RELA
;
10284 cond_reloc
= R_NDS32_NONE
;
10289 /* Set all relocations. */
10290 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
10291 irel
->r_addend
= i2_irelfn
->r_addend
;
10293 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10295 cond_irelfn
->r_addend
= 0;
10297 if ((seq_len
^ *insn_len
) & 0x2)
10299 insn16
= NDS32_NOP16
;
10300 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
10301 i2_irelfn
->r_offset
= 4;
10302 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10304 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10308 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10313 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
10316 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10317 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10318 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10319 Elf_Internal_Shdr
*symtab_hdr
)
10321 /* There are 5 variations for LONGJUMP3
10322 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
10323 optimize off or optimize for space
10324 bnes38 rt, ra, $1 ; LONGJUMP3
10325 sethi ta, hi20(symbol) ; HI20
10326 ori ta, ta, lo12(symbol) ; LO12S0
10330 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
10331 bnes38 rt, ra, $1 ; LONGJUMP3
10332 sethi ta, hi20(symbol) ; HI20
10333 ori ta, ta, lo12(symbol) ; LO12S0
10337 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
10338 optimize off or optimize for space
10339 bne rt, ra, $1 ; LONGJUMP3
10340 sethi ta, hi20(symbol) ; HI20
10341 ori ta, ta, lo12(symbol) ; LO12S0
10345 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
10346 16-bit off if no INSN16
10347 bne rt, ra, $1 ; LONGJUMP3
10348 sethi ta, hi20(symbol) ; HI20
10349 ori ta, ta, lo12(symbol) ; LO12S0
10353 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
10354 16-bit off if no INSN16
10355 bne rt, ra, $1 ; LONGJUMP3
10356 sethi ta, hi20(symbol) ; HI20
10357 ori ta, ta, lo12(symbol) ; LO12S0
10361 /* Get the reloc for the address from which the register is
10362 being loaded. This reloc will tell us which function is
10363 actually being called. */
10364 enum elf_nds32_reloc_type checked_types
[] =
10365 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10367 int reloc_off
= 0, cond_removed
= 0, convertible
;
10369 int seq_len
; /* Original length of instruction sequence. */
10370 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
10373 bfd_signed_vma foff
;
10374 uint32_t insn
, re_insn
= 0;
10375 uint16_t insn16
, re_insn16
= 0;
10376 unsigned long reloc
, cond_reloc
;
10378 irelend
= internal_relocs
+ sec
->reloc_count
;
10379 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10380 laddr
= irel
->r_offset
;
10381 *insn_len
= seq_len
;
10383 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
10390 /* Get all needed relocations. */
10392 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10393 R_NDS32_HI20_RELA
, laddr
+ first_size
);
10395 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10396 R_NDS32_LO12S0_ORI_RELA
,
10397 laddr
+ first_size
+ 4);
10399 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10402 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10403 checked_types
[i
], laddr
);
10404 if (cond_irelfn
!= irelend
)
10408 if (hi_irelfn
== irelend
10409 || lo_irelfn
== irelend
10410 || cond_irelfn
== irelend
)
10412 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP3",
10413 (uint64_t) irel
->r_offset
);
10417 /* Get the value of the symbol referred to by the reloc. */
10418 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10421 || foff
< -CONSERVATIVE_24BIT_S1
10422 || foff
>= CONSERVATIVE_24BIT_S1
)
10425 /* Get the all corresponding instructions. */
10426 if (first_size
== 4)
10428 insn
= bfd_getb32 (contents
+ laddr
);
10429 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10433 insn16
= bfd_getb16 (contents
+ laddr
);
10434 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10437 /* For simplicity of coding, we are going to modify the section
10438 contents, the section relocs, and the BFD symbol table. We
10439 must tell the rest of the code not to free up this
10440 information. It would be possible to instead create a table
10441 of changes which have to be made, as is done in coff-mips.c;
10442 that would be more work, but would require less memory when
10443 the linker is run. */
10446 && foff
>= -ACCURATE_8BIT_S1
- first_size
10447 && foff
< ACCURATE_8BIT_S1
- first_size
)
10449 if (!(seq_len
& 0x2))
10451 /* Don't convert it to 16-bit now, keep this as relaxable
10452 for ``label reloc; INSN1a''6. */
10453 /* Save comp_insn32 to buffer. */
10454 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10456 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10457 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10458 cond_reloc
= R_NDS32_INSN16
;
10462 /* Not optimize for speed; convert sequence to 16-bit. */
10463 /* Save comp_insn16 to buffer. */
10464 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10466 reloc
= R_NDS32_9_PCREL_RELA
;
10467 cond_reloc
= R_NDS32_NONE
;
10471 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10472 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10473 && foff
< ACCURATE_14BIT_S1
- first_size
))
10475 /* beqs label ; 15_PCREL */
10476 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10478 reloc
= R_NDS32_15_PCREL_RELA
;
10479 cond_reloc
= R_NDS32_NONE
;
10482 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10483 && foff
>= -CONSERVATIVE_16BIT_S1
10484 && foff
< CONSERVATIVE_16BIT_S1
)
10486 /* beqz label ; 17_PCREL */
10487 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10489 reloc
= R_NDS32_17_PCREL_RELA
;
10490 cond_reloc
= R_NDS32_NONE
;
10493 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10494 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10496 /* Relax to one of the following 3 variations
10498 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
10500 bnes38 rt, $1 ; LONGJUMP2
10504 case 4-4; 1st insn not convertible, others don't care
10505 bne rt, ra, $1 ; LONGJUMP2
10509 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10510 bne rt, ra, $1 ; LONGJUMP2
10514 /* Offset for first instruction. */
10516 /* Use j label as second instruction. */
10517 *insn_len
= 4 + first_size
;
10519 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
10520 reloc
= R_NDS32_LONGJUMP2
;
10521 cond_reloc
= R_NDS32_25_PLTREL
;
10526 if (cond_removed
== 1)
10528 /* Set all relocations. */
10529 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10530 irel
->r_addend
= hi_irelfn
->r_addend
;
10532 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10534 cond_irelfn
->r_addend
= 0;
10535 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10540 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10541 irel
->r_addend
= irel
->r_addend
;
10542 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10546 if ((seq_len
^ *insn_len
) & 0x2)
10548 insn16
= NDS32_NOP16
;
10549 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10550 lo_irelfn
->r_offset
= *insn_len
;
10551 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10553 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10557 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10562 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
10565 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10566 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10567 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10568 Elf_Internal_Shdr
*symtab_hdr
)
10570 /* The pattern for LONGCALL4. Support for function cse.
10571 sethi ta, hi20(symbol) ; LONGCALL4/HI20
10572 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10573 jral ta ; PTR_RES/EMPTY/INSN16 */
10577 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
10578 Elf_Internal_Rela
*irelend
;
10579 bfd_signed_vma foff
;
10581 irelend
= internal_relocs
+ sec
->reloc_count
;
10582 laddr
= irel
->r_offset
;
10584 /* Get the reloc for the address from which the register is
10585 being loaded. This reloc will tell us which function is
10586 actually being called. */
10587 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10588 R_NDS32_HI20_RELA
, laddr
);
10590 if (hi_irel
== irelend
)
10592 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10593 (uint64_t) irel
->r_offset
);
10597 /* Get the value of the symbol referred to by the reloc. */
10598 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10600 /* This condition only happened when symbol is undefined. */
10602 || foff
< -CONSERVATIVE_24BIT_S1
10603 || foff
>= CONSERVATIVE_24BIT_S1
)
10606 /* Relax to: jal symbol; 25_PCREL. */
10607 /* For simplicity of coding, we are going to modify the section
10608 contents, the section relocs, and the BFD symbol table. We
10609 must tell the rest of the code not to free up this
10610 information. It would be possible to instead create a table
10611 of changes which have to be made, as is done in coff-mips.c;
10612 that would be more work, but would require less memory when
10613 the linker is run. */
10615 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10616 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10617 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10618 R_NDS32_EMPTY
, irel
->r_addend
);
10620 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10622 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10623 (uint64_t) irel
->r_offset
);
10626 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10627 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10628 if (insn
& 0x80000000)
10631 /* Replace the long call with a jal. */
10632 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10633 R_NDS32_25_PCREL_RELA
);
10634 ptr_irel
->r_addend
= 1;
10636 /* We don't resolve this here but resolve it in relocate_section. */
10638 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10641 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10643 /* If there is function cse, HI20 can not remove now. */
10644 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10645 R_NDS32_LONGCALL4
, laddr
);
10646 if (call_irel
== irelend
)
10650 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10653 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10654 R_NDS32_INSN16
, irel
->r_addend
);
10655 if (insn_irel
!= irelend
)
10656 insn_irel
->r_info
=
10657 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10662 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10665 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10666 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10667 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10668 Elf_Internal_Shdr
*symtab_hdr
)
10670 /* The pattern for LONGCALL5.
10671 bltz rt, .L1 ; LONGCALL5/17_PCREL
10672 jal symbol ; 25_PCREL
10677 Elf_Internal_Rela
*cond_irel
, *irelend
;
10678 bfd_signed_vma foff
;
10680 irelend
= internal_relocs
+ sec
->reloc_count
;
10681 laddr
= irel
->r_offset
;
10682 insn
= bfd_getb32 (contents
+ laddr
);
10684 /* Get the reloc for the address from which the register is
10685 being loaded. This reloc will tell us which function is
10686 actually being called. */
10688 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10689 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10690 if (cond_irel
== irelend
)
10692 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL5",
10693 (uint64_t) irel
->r_offset
);
10697 /* Get the value of the symbol referred to by the reloc. */
10698 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10701 || foff
< -CONSERVATIVE_16BIT_S1
10702 || foff
>= CONSERVATIVE_16BIT_S1
)
10705 /* Relax to bgezal rt, label ; 17_PCREL
10706 or bltzal rt, label ; 17_PCREL. */
10708 /* Convert to complimentary conditional call. */
10709 insn
= CONVERT_CONDITION_CALL (insn
);
10711 /* For simplicity of coding, we are going to modify the section
10712 contents, the section relocs, and the BFD symbol table. We
10713 must tell the rest of the code not to free up this
10714 information. It would be possible to instead create a table
10715 of changes which have to be made, as is done in coff-mips.c;
10716 that would be more work, but would require less memory when
10717 the linker is run. */
10719 /* Modify relocation and contents. */
10720 cond_irel
->r_info
=
10721 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10723 /* Replace the long call with a bgezal. */
10724 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10727 /* Clean unnessary relocations. */
10728 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10730 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10731 R_NDS32_17_PCREL_RELA
, laddr
);
10732 cond_irel
->r_info
=
10733 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10738 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10741 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10742 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10743 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10744 Elf_Internal_Shdr
*symtab_hdr
)
10746 /* The pattern for LONGCALL6.
10747 bltz rt, .L1 ; LONGCALL6/17_PCREL
10748 sethi ta, hi20(symbol) ; HI20/PTR
10749 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10750 jral ta ; PTR_RES/EMPTY/INSN16
10755 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10756 bfd_signed_vma foff
;
10758 irelend
= internal_relocs
+ sec
->reloc_count
;
10759 laddr
= irel
->r_offset
;
10761 /* Get the reloc for the address from which the register is
10762 being loaded. This reloc will tell us which function is
10763 actually being called. */
10764 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10765 R_NDS32_EMPTY
, irel
->r_addend
);
10767 if (em_irel
== irelend
)
10769 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL6",
10770 (uint64_t) irel
->r_offset
);
10774 /* Get the value of the symbol referred to by the reloc. */
10775 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
10778 || foff
< -CONSERVATIVE_24BIT_S1
10779 || foff
>= CONSERVATIVE_24BIT_S1
)
10782 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10783 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10784 if (insn
& 0x80000000)
10787 insn
= bfd_getb32 (contents
+ laddr
);
10788 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10790 /* Relax to bgezal rt, label ; 17_PCREL
10791 or bltzal rt, label ; 17_PCREL. */
10793 /* Convert to complimentary conditional call. */
10795 insn
= CONVERT_CONDITION_CALL (insn
);
10796 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10799 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10801 /* Set resolved relocation. */
10803 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10804 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10805 if (cond_irel
== irelend
)
10807 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10808 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10811 cond_irel
->r_addend
= 1;
10813 /* Clear relocations. */
10816 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10819 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10820 R_NDS32_17_PCREL_RELA
, laddr
);
10821 if (cond_irel
!= irelend
)
10822 cond_irel
->r_info
=
10823 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10826 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10827 R_NDS32_INSN16
, irel
->r_addend
);
10828 if (cond_irel
!= irelend
)
10829 cond_irel
->r_info
=
10830 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10833 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10835 /* Relax to the following instruction sequence
10836 bltz rt, .L1 ; LONGCALL2/17_PCREL
10837 jal symbol ; 25_PCREL/PTR_RES
10840 /* Convert instruction. */
10842 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10844 /* Convert relocations. */
10845 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10846 R_NDS32_25_PCREL_RELA
);
10848 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10850 /* Set resolved relocation. */
10852 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10853 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10854 if (cond_irel
== irelend
)
10856 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10857 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10860 cond_irel
->r_addend
= 1;
10863 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10864 R_NDS32_INSN16
, irel
->r_addend
);
10865 if (cond_irel
!= irelend
)
10866 cond_irel
->r_info
=
10867 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10872 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10875 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10876 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10877 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10878 Elf_Internal_Shdr
*symtab_hdr
)
10880 /* The pattern for LONGJUMP4.
10881 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10882 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10883 jr ta ; PTR_RES/INSN16/EMPTY */
10886 int seq_len
; /* Original length of instruction sequence. */
10888 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10889 bfd_signed_vma foff
;
10891 irelend
= internal_relocs
+ sec
->reloc_count
;
10892 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10893 laddr
= irel
->r_offset
;
10894 *insn_len
= seq_len
;
10896 /* Get the reloc for the address from which the register is
10897 being loaded. This reloc will tell us which function is
10898 actually being called. */
10900 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10901 R_NDS32_HI20_RELA
, laddr
);
10903 if (hi_irel
== irelend
)
10905 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10906 (uint64_t) irel
->r_offset
);
10910 /* Get the value of the symbol referred to by the reloc. */
10911 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10914 || foff
>= CONSERVATIVE_24BIT_S1
10915 || foff
< -CONSERVATIVE_24BIT_S1
)
10918 /* Convert it to "j label", it may be converted to j8 in the final
10919 pass of relaxation. Therefore, we do not consider this currently. */
10920 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10921 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10922 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10923 R_NDS32_EMPTY
, irel
->r_addend
);
10925 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10927 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10928 (uint64_t) irel
->r_offset
);
10933 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10934 ptr_irel
->r_addend
= 1;
10936 /* Write instruction. */
10938 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10940 /* Clear relocations. */
10941 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10943 /* If there is function cse, HI20 can not remove now. */
10944 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10945 R_NDS32_LONGJUMP4
, laddr
);
10946 if (call_irel
== irelend
)
10950 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10956 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10959 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10960 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10961 int *seq_len
, bfd_byte
*contents
,
10962 Elf_Internal_Sym
*isymbuf
,
10963 Elf_Internal_Shdr
*symtab_hdr
)
10965 /* There are 2 variations for LONGJUMP5
10966 case 2-4; 1st insn convertible, 16-bit on.
10967 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10968 j label ; 25_PCREL/INSN16
10971 case 4-4; 1st insn not convertible
10972 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10973 j label ; 25_PCREL/INSN16
10977 Elf_Internal_Rela
*cond_irel
, *irelend
;
10979 bfd_signed_vma foff
;
10980 uint32_t insn
, re_insn
= 0;
10981 uint16_t insn16
, re_insn16
= 0;
10982 unsigned long reloc
;
10984 enum elf_nds32_reloc_type checked_types
[] =
10985 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10986 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10988 irelend
= internal_relocs
+ sec
->reloc_count
;
10989 laddr
= irel
->r_offset
;
10991 /* Get the reloc for the address from which the register is
10992 being loaded. This reloc will tell us which function is
10993 actually being called. */
10996 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10997 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10998 if (cond_irel
== irelend
)
11000 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP5",
11001 (uint64_t) irel
->r_offset
);
11005 /* Get the value of the symbol referred to by the reloc. */
11006 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11009 || foff
< -CONSERVATIVE_16BIT_S1
11010 || foff
>= CONSERVATIVE_16BIT_S1
)
11013 /* Get the all corresponding instructions. */
11014 insn
= bfd_getb32 (contents
+ laddr
);
11015 /* Check instruction size. */
11016 if (insn
& 0x80000000)
11019 insn16
= insn
>> 16;
11020 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11023 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11025 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11026 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11028 /* beqs label ; 15_PCREL. */
11029 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11030 reloc
= R_NDS32_15_PCREL_RELA
;
11032 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11033 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11035 /* beqz label ; 17_PCREL. */
11036 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11037 reloc
= R_NDS32_17_PCREL_RELA
;
11039 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
11040 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
11042 /* beqc label ; 9_PCREL. */
11043 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11044 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
11049 /* Set all relocations. */
11050 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
11052 /* Clean relocations. */
11053 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11054 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11056 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11057 checked_types
[i
], laddr
);
11058 if (cond_irel
!= irelend
)
11061 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11063 /* If the branch instruction is 2 byte, it cannot remove
11064 directly. Only convert it to nop16 and remove it after
11065 checking alignment issue. */
11066 insn16
= NDS32_NOP16
;
11067 bfd_putb16 (insn16
, contents
+ laddr
);
11068 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11071 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11080 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
11083 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11084 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11085 int *seq_len
, bfd_byte
*contents
,
11086 Elf_Internal_Sym
*isymbuf
,
11087 Elf_Internal_Shdr
*symtab_hdr
)
11089 /* There are 5 variations for LONGJUMP6
11090 case : 2-4-4-4; 1st insn convertible, 16-bit on.
11091 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11092 sethi ta, hi20(symbol) ; HI20/PTR
11093 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11094 jr ta ; PTR_RES/INSN16/EMPTY
11097 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
11098 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11099 sethi ta, hi20(symbol) ; HI20/PTR
11100 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11101 jr ta ; PTR_RES/INSN16/EMPTY
11104 enum elf_nds32_reloc_type checked_types
[] =
11105 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
11106 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
11108 int reloc_off
= 0, cond_removed
= 0;
11110 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
11112 bfd_signed_vma foff
;
11113 uint32_t insn
, re_insn
= 0;
11114 uint16_t insn16
, re_insn16
= 0;
11115 unsigned long reloc
;
11117 irelend
= internal_relocs
+ sec
->reloc_count
;
11118 laddr
= irel
->r_offset
;
11120 /* Get the reloc for the address from which the register is
11121 being loaded. This reloc will tell us which function is
11122 actually being called. */
11123 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11124 R_NDS32_EMPTY
, irel
->r_addend
);
11126 if (em_irel
== irelend
)
11128 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP6",
11129 (uint64_t) irel
->r_offset
);
11133 /* Get the value of the symbol referred to by the reloc. */
11134 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
11137 || foff
< -CONSERVATIVE_24BIT_S1
11138 || foff
>= CONSERVATIVE_24BIT_S1
)
11141 insn
= bfd_getb32 (contents
+ laddr
);
11142 /* Check instruction size. */
11143 if (insn
& 0x80000000)
11146 insn16
= insn
>> 16;
11147 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11150 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11152 /* For simplicity of coding, we are going to modify the section
11153 contents, the section relocs, and the BFD symbol table. We
11154 must tell the rest of the code not to free up this
11155 information. It would be possible to instead create a table
11156 of changes which have to be made, as is done in coff-mips.c;
11157 that would be more work, but would require less memory when
11158 the linker is run. */
11160 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11161 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11163 /* beqs label ; 15_PCREL. */
11164 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11165 reloc
= R_NDS32_15_PCREL_RELA
;
11168 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11169 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11171 /* beqz label ; 17_PCREL. */
11172 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11173 reloc
= R_NDS32_17_PCREL_RELA
;
11176 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
11177 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
11179 /* Relax to one of the following 2 variations
11181 case 2-4; 1st insn convertible, 16-bit on.
11182 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
11183 j label ; 25_PCREL/INSN16
11186 case 4-4; 1st insn not convertible
11187 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
11188 j label ; 25_PCREL/INSN16
11191 /* Use j label as second instruction. */
11193 reloc
= R_NDS32_25_PCREL_RELA
;
11194 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
11199 /* Set all relocations. */
11200 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
11203 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11204 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
11205 cond_irel
->r_addend
= 1;
11207 /* Use INSN16 of first branch instruction to distinguish if keeping
11208 INSN16 of final instruction or not. */
11209 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11210 R_NDS32_INSN16
, irel
->r_offset
);
11211 if (insn_irel
== irelend
)
11213 /* Clean the final INSN16. */
11215 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11216 R_NDS32_INSN16
, em_irel
->r_offset
);
11217 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11221 if (cond_removed
== 1)
11225 /* Clear relocations. */
11226 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11228 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11231 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11232 checked_types
[i
], laddr
);
11233 if (cond_irel
!= irelend
)
11236 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11238 /* If the branch instruction is 2 byte, it cannot remove
11239 directly. Only convert it to nop16 and remove it after
11240 checking alignment issue. */
11241 insn16
= NDS32_NOP16
;
11242 bfd_putb16 (insn16
, contents
+ laddr
);
11243 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11246 cond_irel
->r_info
=
11247 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
11253 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11254 R_NDS32_LONGJUMP5
);
11260 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
11263 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11264 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11265 int *seq_len
, bfd_byte
*contents
,
11266 Elf_Internal_Sym
*isymbuf
,
11267 Elf_Internal_Shdr
*symtab_hdr
)
11269 /* There are 2 variations for LONGJUMP5
11270 case 2-4; 1st insn convertible, 16-bit on.
11271 movi55 ta, imm11 ; LONGJUMP7/INSN16
11272 beq rt, ta, label ; 15_PCREL
11274 case 4-4; 1st insn not convertible
11275 movi55 ta, imm11 ; LONGJUMP7/INSN16
11276 beq rt, ta, label ; 15_PCREL */
11279 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
11280 bfd_signed_vma foff
;
11281 uint32_t insn
, re_insn
= 0;
11285 irelend
= internal_relocs
+ sec
->reloc_count
;
11286 laddr
= irel
->r_offset
;
11288 /* Get the reloc for the address from which the register is
11289 being loaded. This reloc will tell us which function is
11290 actually being called. */
11293 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11294 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
11295 if (cond_irel
== irelend
)
11297 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP7",
11298 (uint64_t) irel
->r_offset
);
11302 /* Get the value of the symbol referred to by the reloc. */
11303 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11306 || foff
< -CONSERVATIVE_8BIT_S1
11307 || foff
>= CONSERVATIVE_8BIT_S1
)
11310 /* Get the first instruction for its size. */
11311 insn
= bfd_getb32 (contents
+ laddr
);
11312 if (insn
& 0x80000000)
11315 /* Get the immediate from movi55. */
11316 imm11
= N16_IMM5S (insn
>> 16);
11320 /* Get the immediate from movi. */
11321 imm11
= N32_IMM20S (insn
);
11324 /* Get the branch instruction. */
11325 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
11326 /* Convert instruction to BR3. */
11327 if ((insn
>> 14) & 0x1)
11328 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
11330 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
11332 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11334 /* Set all relocations. */
11335 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11336 R_NDS32_WORD_9_PCREL_RELA
);
11338 /* Clean relocations. */
11339 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11340 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11341 R_NDS32_INSN16
, irel
->r_offset
);
11342 if (insn_irel
!= irelend
)
11346 /* If the first insntruction is 16bit, convert it to nop16. */
11347 insn16
= NDS32_NOP16
;
11348 bfd_putb16 (insn16
, contents
+ laddr
);
11349 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11352 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11360 /* We figure out and reassign the best gp value in nds32_elf_final_sda_base
11361 for each relax round. But the gp may changed dramatically and then cause
11362 the truncated to fit errors for the the converted gp instructions.
11363 Therefore, we must reserve the minimum but safe enough size to prevent it. */
11366 nds32_elf_relax_guard (bfd_vma
*access_addr
, bfd_vma local_sda
, asection
*sec
,
11367 Elf_Internal_Rela
*irel
, bfd_boolean
*again
,
11369 struct elf_nds32_link_hash_table
*table
,
11370 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
11374 static bfd_boolean sec_pass
= FALSE
;
11375 static asection
*first_sec
= NULL
, *sym_sec
;
11376 /* Record the number of instructions which may be removed. */
11377 static int count
= 0, record_count
;
11378 Elf_Internal_Sym
*isym
;
11379 struct elf_link_hash_entry
*h
= NULL
;
11381 unsigned long r_symndx
;
11382 bfd
*abfd
= sec
->owner
;
11383 static bfd_vma record_sda
= 0;
11384 int sda_offset
= 0;
11386 /* Force doing relaxation when hyper-relax is high. */
11387 if (table
->hyper_relax
== 2)
11390 /* Do not relax the load/store patterns for the first
11396 else if (first_sec
== sec
)
11398 record_count
= count
;
11409 /* Generally, _SDA_BASE_ is fixed or smaller. But the large
11410 DATA_SEGMENT_ALIGN size in the linker script may make it
11411 get even bigger. */
11412 if (record_sda
== 0)
11413 record_sda
= local_sda
;
11414 else if (local_sda
> record_sda
)
11415 sda_offset
= local_sda
- record_sda
;
11417 /* Assume the instruction will be removed in the best case. */
11420 /* We record the offset to gp for each symbol, and then check
11421 if it is changed dramatically after relaxing.
11422 (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp
11423 (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */
11424 r_symndx
= ELF32_R_SYM (irel
->r_info
);
11425 if (r_symndx
>= symtab_hdr
->sh_info
)
11427 /* Global symbols. */
11428 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11429 h
= elf_sym_hashes (abfd
)[indx
];
11430 sym_sec
= h
->root
.u
.def
.section
;
11431 if (NDS32_GUARD_SEC_P (sym_sec
->flags
)
11432 || bfd_is_abs_section (sym_sec
))
11434 /* Forbid doing relaxation when hyper-relax is low. */
11435 if (table
->hyper_relax
== 0)
11438 offset_to_gp
= *access_addr
- local_sda
;
11439 if (elf32_nds32_hash_entry (h
)->offset_to_gp
== 0)
11440 elf32_nds32_hash_entry (h
)->offset_to_gp
= offset_to_gp
;
11441 else if (abs (elf32_nds32_hash_entry (h
)->offset_to_gp
)
11442 < abs (offset_to_gp
) - sda_offset
)
11444 /* This may cause the error, so we reserve the
11445 safe enough size for relaxing. */
11446 if (*access_addr
>= local_sda
)
11447 *access_addr
+= (record_count
* 4);
11449 *access_addr
-= (record_count
* 4);
11456 /* Local symbols. */
11457 if (!elf32_nds32_allocate_local_sym_info (abfd
))
11459 isym
= isymbuf
+ r_symndx
;
11461 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
11462 if (NDS32_GUARD_SEC_P (sym_sec
->flags
))
11464 /* Forbid doing relaxation when hyper-relax is low. */
11465 if (table
->hyper_relax
== 0)
11468 offset_to_gp
= *access_addr
- local_sda
;
11469 if (elf32_nds32_local_gp_offset (abfd
)[r_symndx
] == 0)
11470 elf32_nds32_local_gp_offset (abfd
)[r_symndx
] = offset_to_gp
;
11471 else if (abs (elf32_nds32_local_gp_offset (abfd
)[r_symndx
])
11472 < abs (offset_to_gp
) - sda_offset
)
11474 /* This may cause the error, so we reserve the
11475 safe enough size for relaxing. */
11476 if (*access_addr
>= local_sda
)
11477 *access_addr
+= (record_count
* 4);
11479 *access_addr
-= (record_count
* 4);
11488 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
11490 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
11493 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
11494 asection
*sec
, Elf_Internal_Rela
*irel
,
11495 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11496 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11497 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
,
11498 struct elf_nds32_link_hash_table
*table
)
11500 int eliminate_sethi
= 0, range_type
;
11502 bfd_vma local_sda
, laddr
;
11503 int seq_len
; /* Original length of instruction sequence. */
11505 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
11506 bfd_vma access_addr
= 0;
11507 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11508 struct elf_link_hash_entry
*h
= NULL
;
11510 enum elf_nds32_reloc_type checked_types
[] =
11511 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
11512 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
11513 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
11514 R_NDS32_TLS_LE_HI20
11517 irelend
= internal_relocs
+ sec
->reloc_count
;
11518 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
11519 laddr
= irel
->r_offset
;
11520 *insn_len
= seq_len
;
11522 /* Get the high part relocation. */
11523 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11525 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11526 checked_types
[i
], laddr
);
11527 if (hi_irelfn
!= irelend
)
11531 if (hi_irelfn
== irelend
)
11533 /* Not R_NDS32_HI20_RELA. */
11535 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LOADSTORE",
11536 (uint64_t) irel
->r_offset
);
11540 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
11541 nds32_elf_final_sda_base (sec
->output_section
->owner
,
11542 link_info
, &local_sda
, FALSE
);
11544 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
11546 case R_NDS32_HI20_RELA
:
11547 insn
= bfd_getb32 (contents
+ laddr
);
11549 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
11551 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
11553 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
11554 h
= elf_sym_hashes (abfd
)[indx
];
11558 if (range_type
== NDS32_LOADSTORE_IMM
11559 && access_addr
< CONSERVATIVE_20BIT
11560 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11562 eliminate_sethi
= 1;
11566 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11568 eliminate_sethi
= 1;
11571 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, hi_irelfn
,
11572 NULL
, FALSE
, table
, isymbuf
, symtab_hdr
))
11575 if (!load_store_relax
)
11578 /* Case for set gp register. */
11579 if (N32_RT5 (insn
) == REG_GP
)
11582 if (range_type
== NDS32_LOADSTORE_FLOAT_S
11583 || range_type
== NDS32_LOADSTORE_FLOAT_D
)
11585 range_l
= sdata_range
[0][0];
11586 range_h
= sdata_range
[0][1];
11590 range_l
= sdata_range
[1][0];
11591 range_h
= sdata_range
[1][1];
11599 /* Delete sethi instruction. */
11600 if (eliminate_sethi
== 1
11601 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11602 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11604 hi_irelfn
->r_info
=
11605 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
11607 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11615 /* Relax LO12 relocation for nds32_elf_relax_section. */
11618 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11619 asection
*sec
, Elf_Internal_Rela
*irel
,
11620 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
11621 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
11622 struct elf_nds32_link_hash_table
*table
)
11625 bfd_vma local_sda
, laddr
;
11626 unsigned long reloc
;
11627 bfd_vma access_addr
;
11628 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11629 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
11630 struct elf_link_hash_entry
*h
= NULL
;
11633 /* For SDA base relative relaxation. */
11634 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11635 &local_sda
, FALSE
);
11637 irelend
= internal_relocs
+ sec
->reloc_count
;
11638 laddr
= irel
->r_offset
;
11639 insn
= bfd_getb32 (contents
+ laddr
);
11641 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
11644 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11646 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
11648 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11649 h
= elf_sym_hashes (abfd
)[indx
];
11653 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
11654 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11656 reloc
= R_NDS32_20_RELA
;
11657 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11658 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11659 bfd_putb32 (insn
, contents
+ laddr
);
11663 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11665 /* Fall through. */
11667 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, irel
, NULL
,
11668 FALSE
, table
, isymbuf
, symtab_hdr
))
11671 range_l
= sdata_range
[1][0];
11672 range_h
= sdata_range
[1][1];
11673 switch (ELF32_R_TYPE (irel
->r_info
))
11675 case R_NDS32_LO12S0_RELA
:
11676 reloc
= R_NDS32_SDA19S0_RELA
;
11678 case R_NDS32_LO12S1_RELA
:
11679 reloc
= R_NDS32_SDA18S1_RELA
;
11681 case R_NDS32_LO12S2_RELA
:
11682 reloc
= R_NDS32_SDA17S2_RELA
;
11684 case R_NDS32_LO12S2_DP_RELA
:
11685 range_l
= sdata_range
[0][0];
11686 range_h
= sdata_range
[0][1];
11687 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11689 case R_NDS32_LO12S2_SP_RELA
:
11690 range_l
= sdata_range
[0][0];
11691 range_h
= sdata_range
[0][1];
11692 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11698 /* There are range_h and range_l because linker has to promise
11699 all sections move cross one page together. */
11700 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11701 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
)
11702 || (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0))
11704 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11706 /* Maybe we should add R_NDS32_INSN16 reloc type here
11707 or manually do some optimization. sethi can't be
11708 eliminated when updating $gp so the relative ori
11709 needs to be preserved. */
11712 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11715 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11716 bfd_putb32 (insn
, contents
+ laddr
);
11718 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11720 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11721 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11723 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11730 /* Relax PTR relocation for nds32_elf_relax_section. */
11733 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11734 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11735 int *seq_len
, bfd_byte
*contents
)
11737 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11739 irelend
= internal_relocs
+ sec
->reloc_count
;
11742 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11743 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11745 if (re_irel
== irelend
)
11747 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_PTR",
11748 (uint64_t) irel
->r_offset
);
11752 if (re_irel
->r_addend
!= 1)
11755 /* Pointed target is relaxed and no longer needs this void *,
11756 change the type to NONE. */
11757 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11759 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11760 not exist, it means only count 1 and remove it directly. */
11761 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11762 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11763 R_NDS32_PTR_COUNT
);
11764 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11766 if (count_irel
!= irelend
)
11768 if (--count_irel
->r_addend
> 0)
11772 if (ptr_irel
!= irelend
)
11775 /* If the PTR_COUNT is already 0, remove current instruction. */
11776 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11781 /* Relax LWC relocation for nds32_elf_relax_section. */
11784 nds32_elf_relax_flsi (struct bfd_link_info
*link_info
, bfd
*abfd
,
11785 asection
*sec
, Elf_Internal_Rela
*irel
,
11786 Elf_Internal_Rela
*internal_relocs
,
11787 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11788 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11791 sethi ra, hi20(symbol) ; HI20/LOADSTORE
11792 ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16
11793 flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16
11794 flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16
11798 bfd_vma local_sda
, laddr
;
11799 unsigned long reloc
;
11800 bfd_vma access_addr
, flsi_offset
;
11801 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11802 Elf_Internal_Rela
*irelend
, *re_irel
;
11803 unsigned int opcode
;
11805 irelend
= internal_relocs
+ sec
->reloc_count
;
11806 laddr
= irel
->r_offset
;
11807 insn
= bfd_getb32 (contents
+ laddr
);
11809 if ((insn
& 0x80000000) || !is_sda_access_insn (insn
))
11812 /* Can not do relaxation for bi format. */
11813 if ((insn
& 0x1000))
11816 /* Only deal with flsi, fssi, fldi, fsdi, so far. */
11817 opcode
= N32_OP6 (insn
);
11818 if ((opcode
== N32_OP6_LWC
) || (opcode
== N32_OP6_SWC
))
11819 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11820 else if ((opcode
== N32_OP6_LDC
) || (opcode
== N32_OP6_SDC
))
11821 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11825 re_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11826 R_NDS32_PTR_RESOLVED
);
11827 if (re_irel
== irelend
)
11829 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LSI",
11830 (uint64_t) irel
->r_offset
);
11834 /* For SDA base relative relaxation. */
11835 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11836 &local_sda
, FALSE
);
11837 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11838 flsi_offset
= (insn
& 0xfff) << 2;
11839 access_addr
+= flsi_offset
;
11840 range_l
= sdata_range
[0][0];
11841 range_h
= sdata_range
[0][1];
11843 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11844 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11846 /* Turn flsi instruction into sda access format. */
11847 insn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
11849 /* Add relocation type to flsi. */
11850 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11851 irel
->r_addend
+= flsi_offset
;
11852 bfd_putb32 (insn
, contents
+ re_irel
->r_offset
);
11854 re_irel
->r_addend
|= 1;
11860 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11861 Elf_Internal_Rela
*internal_relocs
,
11862 bfd_byte
*contents
,
11863 nds32_elf_blank_t
**relax_blank_list
,
11864 int optimize
, int opt_size
)
11866 /* This code block is used to adjust 4-byte alignment by relax a pair
11867 of instruction a time.
11869 It recognizes three types of relocations.
11870 1. R_NDS32_LABEL - a alignment.
11871 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11872 3. is_16bit_NOP () - remove a 16-bit instruction. */
11874 /* TODO: It seems currently implementation only support 4-byte alignment.
11875 We should handle any-alignment. */
11877 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11878 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11879 Elf_Internal_Rela rel_temp
;
11880 Elf_Internal_Rela
*irelend
;
11884 /* Checking for branch relaxation relies on the relocations to
11885 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11886 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11887 sizeof (Elf_Internal_Rela
), compar_reloc
);
11889 irelend
= internal_relocs
+ sec
->reloc_count
;
11891 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11892 /* FIXME: Can we generate the right order in assembler?
11893 So we don't have to swapping them here. */
11895 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11896 label_rel
< irelend
; label_rel
++)
11898 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11901 /* Find the first reloc has the same offset with label_rel. */
11902 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11905 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11907 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11909 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11912 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11913 && insn_rel
< label_rel
)
11915 /* Swap the two reloc if the R_NDS32_INSN16 is
11916 before R_NDS32_LABEL. */
11917 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11918 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11919 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11925 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11926 or higher, remove other R_NDS32_LABEL with lower alignment.
11927 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11928 then the R_NDS32_LABEL sequence is broke. */
11929 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11931 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11933 if (label_rel
== NULL
)
11935 if (tmp_rel
->r_addend
< 2)
11936 label_rel
= tmp_rel
;
11939 else if (tmp_rel
->r_addend
> 1)
11941 /* Remove all LABEL relocation from label_rel to tmp_rel
11942 including relocations with same offset as tmp_rel. */
11943 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
; tmp2_rel
++)
11945 if (tmp2_rel
->r_offset
== tmp_rel
->r_offset
)
11948 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11949 && tmp2_rel
->r_addend
< 2)
11951 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11957 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11959 /* A new INSN16 which can be converted, so clear label_rel. */
11960 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11962 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11969 /* Optimized for speed and nothing has not been relaxed.
11970 It's time to align labels.
11971 We may convert a 16-bit instruction right before a label to
11972 32-bit, in order to align the label if necessary
11973 all reloc entries has been sorted by r_offset. */
11974 for (irel
= internal_relocs
;
11975 irel
< irelend
&& irel
->r_offset
< sec
->size
; irel
++)
11977 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11978 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11981 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11983 /* A new INSN16 found, resize the old one. */
11984 if (is_convert_32_to_16
11985 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11986 || is_16bit_NOP (abfd
, sec
, irel
))
11990 /* Previous INSN16 reloc exists, reduce its
11992 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11995 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11996 internal_relocs
, irelend
, insn16
);
11998 if (!insert_nds32_elf_blank_recalc_total
11999 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12002 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12004 if (!insert_nds32_elf_blank_recalc_total
12005 (relax_blank_list
, insn_rel
->r_offset
, 2))
12009 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
12011 /* Save the new one for later use. */
12015 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
12018 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
12020 /* Search for label. */
12021 int force_relax
= 0;
12023 /* Label on 16-bit instruction or optimization
12024 needless, just reset this reloc. */
12025 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
12026 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
12029 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
12034 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
12035 irel
->r_offset
, 1);
12039 /* Check if there is case which can not be aligned. */
12040 if (irel
->r_addend
== 2 && address
& 0x2)
12045 /* Try to align this label. */
12047 if ((irel
->r_addend
& 0x1f) < 2)
12049 /* Check if there is a INSN16 at the same address.
12050 Label_rel always seats before insn_rel after
12053 /* Search for INSN16 at LABEL location. If INSN16 is at
12054 same location and this LABEL alignment is lower than 2,
12055 the INSN16 can be converted to 2-byte. */
12056 for (tmp_rel
= irel
;
12057 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
12060 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
12061 && (is_convert_32_to_16
12062 (abfd
, sec
, tmp_rel
, internal_relocs
,
12064 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
12072 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
12074 /* Label not aligned. */
12075 /* Previous reloc exists, reduce its size to 16-bit. */
12076 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
12077 internal_relocs
, irelend
, &insn16
))
12079 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
12080 internal_relocs
, irelend
, insn16
);
12082 if (!insert_nds32_elf_blank_recalc_total
12083 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12086 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12088 if (!insert_nds32_elf_blank_recalc_total
12089 (relax_blank_list
, insn_rel
->r_offset
, 2))
12094 /* INSN16 reloc is used. */
12100 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
12101 if (insn_rel
&& (address
& 0x2 || opt_size
))
12103 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
12106 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
12108 if (!insert_nds32_elf_blank_recalc_total
12109 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12111 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12114 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12116 if (!insert_nds32_elf_blank_recalc_total
12117 (relax_blank_list
, insn_rel
->r_offset
, 2))
12119 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12128 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
12129 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
12131 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12132 Elf_Internal_Shdr
*symtab_hdr
;
12133 Elf_Internal_Rela
*internal_relocs
;
12134 Elf_Internal_Rela
*irel
;
12135 Elf_Internal_Rela
*irelend
;
12136 Elf_Internal_Sym
*isymbuf
= NULL
;
12137 bfd_byte
*contents
= NULL
;
12138 bfd_boolean result
= TRUE
;
12144 /* Target dependnet option. */
12145 struct elf_nds32_link_hash_table
*table
;
12146 int load_store_relax
;
12148 relax_blank_list
= NULL
;
12152 /* Nothing to do for
12153 * relocatable link or
12154 * non-relocatable section or
12155 * non-code section or
12157 * no reloc entry. */
12158 if (bfd_link_relocatable (link_info
)
12159 || (sec
->flags
& SEC_RELOC
) == 0
12160 || (sec
->flags
& SEC_EXCLUDE
) != 0
12161 || (sec
->flags
& SEC_CODE
) == 0
12163 || sec
->reloc_count
== 0)
12166 /* 09.12.11 Workaround. */
12167 /* We have to adjust align for R_NDS32_LABEL if needed.
12168 The adjust approach only can fix 2-byte align once. */
12169 if (sec
->alignment_power
> 2)
12172 /* Do TLS model conversion once at first. */
12173 nds32_elf_unify_tls_model (abfd
, sec
, contents
, link_info
);
12175 /* The optimization type to do. */
12177 table
= nds32_elf_hash_table (link_info
);
12179 /* Save the first section for abs symbol relaxation.
12180 This is used for checking gp relaxation in the
12181 nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */
12182 nds32_elf_relax_guard (NULL
, 0, sec
, NULL
, again
, TRUE
,
12183 table
, NULL
, NULL
);
12185 /* The begining of general relaxation. */
12187 if (is_SDA_BASE_set
== 0)
12190 is_SDA_BASE_set
= 1;
12191 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12193 relax_range_measurement (abfd
);
12196 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12197 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12198 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12199 TRUE
/* keep_memory */);
12200 if (internal_relocs
== NULL
)
12203 irelend
= internal_relocs
+ sec
->reloc_count
;
12204 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12205 irelend
, R_NDS32_RELAX_ENTRY
);
12207 if (irel
== irelend
)
12210 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12212 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12215 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12218 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12222 load_store_relax
= table
->load_store_relax
;
12224 /* Get symbol table and section content. */
12225 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12226 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12229 /* Do relax loop only when finalize is not done.
12230 Take care of relaxable relocs except INSN16. */
12231 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12233 int seq_len
; /* Original length of instruction sequence. */
12234 int insn_len
= 0; /* Final length of instruction sequence. */
12235 bfd_boolean removed
;
12238 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12239 && (irel
->r_addend
& 0x1f) >= 2)
12242 /* Relocation Types
12243 R_NDS32_LONGCALL1 53
12244 R_NDS32_LONGCALL2 54
12245 R_NDS32_LONGCALL3 55
12246 R_NDS32_LONGJUMP1 56
12247 R_NDS32_LONGJUMP2 57
12248 R_NDS32_LONGJUMP3 58
12249 R_NDS32_LOADSTORE 59 */
12250 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12251 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12252 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12254 /* Relocation Types
12255 R_NDS32_LONGCALL4 107
12256 R_NDS32_LONGCALL5 108
12257 R_NDS32_LONGCALL6 109
12258 R_NDS32_LONGJUMP4 110
12259 R_NDS32_LONGJUMP5 111
12260 R_NDS32_LONGJUMP6 112
12261 R_NDS32_LONGJUMP7 113 */
12262 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12263 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12266 /* Relocation Types
12267 R_NDS32_LO12S0_RELA 30
12268 R_NDS32_LO12S1_RELA 29
12269 R_NDS32_LO12S2_RELA 28
12270 R_NDS32_LO12S2_SP_RELA 71
12271 R_NDS32_LO12S2_DP_RELA 70
12272 R_NDS32_GOT_LO12 46
12273 R_NDS32_GOTOFF_LO12 50
12274 R_NDS32_PLTREL_LO12 65
12275 R_NDS32_PLT_GOTREL_LO12 67
12276 R_NDS32_17IFC_PCREL_RELA 96
12277 R_NDS32_GOT_SUFF 193
12278 R_NDS32_GOTOFF_SUFF 194
12279 R_NDS32_PLT_GOT_SUFF 195
12280 R_NDS32_MULCALL_SUFF 196
12282 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12283 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12284 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12285 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12286 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12287 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12288 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12289 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12290 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12291 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12292 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12293 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12294 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12295 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12296 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
12297 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LSI
)
12302 insn_len
= seq_len
;
12305 switch (ELF32_R_TYPE (irel
->r_info
))
12307 case R_NDS32_LONGCALL1
:
12308 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12309 &insn_len
, contents
, isymbuf
,
12312 case R_NDS32_LONGCALL2
:
12313 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12314 &insn_len
, contents
, isymbuf
,
12317 case R_NDS32_LONGCALL3
:
12318 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12319 &insn_len
, contents
, isymbuf
,
12322 case R_NDS32_LONGJUMP1
:
12323 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12324 &insn_len
, contents
, isymbuf
,
12327 case R_NDS32_LONGJUMP2
:
12328 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12329 &insn_len
, contents
, isymbuf
,
12332 case R_NDS32_LONGJUMP3
:
12333 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12334 &insn_len
, contents
, isymbuf
,
12337 case R_NDS32_LONGCALL4
:
12338 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12339 &insn_len
, contents
, isymbuf
,
12342 case R_NDS32_LONGCALL5
:
12343 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12344 &insn_len
, contents
, isymbuf
,
12347 case R_NDS32_LONGCALL6
:
12348 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12349 &insn_len
, contents
, isymbuf
,
12352 case R_NDS32_LONGJUMP4
:
12353 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12354 &insn_len
, contents
, isymbuf
,
12357 case R_NDS32_LONGJUMP5
:
12358 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12359 &insn_len
, &seq_len
, contents
,
12360 isymbuf
, symtab_hdr
);
12362 case R_NDS32_LONGJUMP6
:
12363 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12364 &insn_len
, &seq_len
, contents
,
12365 isymbuf
, symtab_hdr
);
12367 case R_NDS32_LONGJUMP7
:
12368 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12369 &insn_len
, &seq_len
, contents
,
12370 isymbuf
, symtab_hdr
);
12372 case R_NDS32_LOADSTORE
:
12373 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12374 internal_relocs
, &insn_len
,
12375 contents
, isymbuf
, symtab_hdr
,
12376 load_store_relax
, table
);
12378 case R_NDS32_LO12S0_RELA
:
12379 case R_NDS32_LO12S1_RELA
:
12380 case R_NDS32_LO12S2_RELA
:
12381 case R_NDS32_LO12S2_DP_RELA
:
12382 case R_NDS32_LO12S2_SP_RELA
:
12383 /* Relax for low part. */
12384 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12385 contents
, isymbuf
, symtab_hdr
, table
);
12387 /* It is impossible to delete blank, so just continue. */
12390 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12391 &insn_len
, &seq_len
, contents
);
12394 nds32_elf_relax_flsi (link_info
, abfd
, sec
, irel
, internal_relocs
,
12395 contents
, isymbuf
, symtab_hdr
, again
);
12397 case R_NDS32_GOT_LO12
:
12398 case R_NDS32_GOTOFF_LO12
:
12399 case R_NDS32_PLTREL_LO12
:
12400 case R_NDS32_PLT_GOTREL_LO12
:
12401 case R_NDS32_GOTPC_LO12
:
12402 case R_NDS32_TLS_LE_LO12
:
12403 case R_NDS32_TLS_LE_ADD
:
12404 case R_NDS32_TLS_LE_LS
:
12405 case R_NDS32_PLT_GOT_SUFF
:
12406 case R_NDS32_GOT_SUFF
:
12407 case R_NDS32_GOTOFF_SUFF
:
12413 if (removed
&& seq_len
- insn_len
> 0)
12415 if (!insert_nds32_elf_blank
12416 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12417 seq_len
- insn_len
))
12423 calc_nds32_blank_total (relax_blank_list
);
12425 if (table
->relax_fp_as_gp
)
12427 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12433 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12441 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12442 &relax_blank_list
, optimize
, opt_size
))
12446 /* It doesn't matter optimize_for_space_no_align anymore.
12447 If object file is assembled with flag '-Os',
12448 the we don't adjust jump-destination on 4-byte boundary. */
12450 if (relax_blank_list
)
12452 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12453 relax_blank_list
= NULL
;
12458 /* Closing the section, so we don't relax it anymore. */
12459 bfd_vma sec_size_align
;
12460 Elf_Internal_Rela
*tmp_rel
;
12462 /* Pad to alignment boundary. Only handle current section alignment. */
12463 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12464 & ((-1U) << sec
->alignment_power
);
12465 if ((sec_size_align
- sec
->size
) & 0x2)
12467 insn16
= NDS32_NOP16
;
12468 bfd_putb16 (insn16
, contents
+ sec
->size
);
12472 while (sec_size_align
!= sec
->size
)
12474 insn
= NDS32_NOP32
;
12475 bfd_putb32 (insn
, contents
+ sec
->size
);
12479 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12480 irelend
, R_NDS32_RELAX_ENTRY
);
12481 if (tmp_rel
!= irelend
)
12482 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12484 clean_nds32_elf_blank ();
12488 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
12489 free (internal_relocs
);
12491 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12494 if (symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12504 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12506 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12507 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12512 nds32_elf_section_flags (const Elf_Internal_Shdr
*hdr
)
12514 const char *name
= hdr
->bfd_section
->name
;
12516 if (strncmp (name
, ".sbss", 5) == 0
12517 || strncmp (name
, ".sdata", 6) == 0)
12518 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
12524 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12525 struct bfd_link_info
*info
,
12526 void *finfo ATTRIBUTE_UNUSED
,
12527 bfd_boolean (*func
) (void *, const char *,
12528 Elf_Internal_Sym
*,
12530 struct elf_link_hash_entry
*)
12533 FILE *sym_ld_script
= NULL
;
12534 struct elf_nds32_link_hash_table
*table
;
12536 table
= nds32_elf_hash_table (info
);
12537 sym_ld_script
= table
->sym_ld_script
;
12539 if (check_start_export_sym
)
12540 fprintf (sym_ld_script
, "}\n");
12545 static enum elf_reloc_type_class
12546 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12547 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12548 const Elf_Internal_Rela
*rela
)
12550 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12552 case R_NDS32_RELATIVE
:
12553 return reloc_class_relative
;
12554 case R_NDS32_JMP_SLOT
:
12555 return reloc_class_plt
;
12557 return reloc_class_copy
;
12559 return reloc_class_normal
;
12563 /* Put target dependent option into info hash table. */
12565 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12566 int relax_fp_as_gp
,
12567 int eliminate_gc_relocs
,
12568 FILE * sym_ld_script
,
12570 int tls_desc_trampoline
,
12571 int load_store_relax
)
12573 struct elf_nds32_link_hash_table
*table
;
12575 table
= nds32_elf_hash_table (link_info
);
12579 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12580 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12581 table
->sym_ld_script
= sym_ld_script
;
12582 table
->hyper_relax
= hyper_relax
;
12583 table
->tls_desc_trampoline
= tls_desc_trampoline
;
12584 table
->load_store_relax
= load_store_relax
;
12588 /* These functions and data-structures are used for fp-as-gp
12591 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12592 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12593 the read-only section and read-write section. */
12594 #define FAG_WINDOW (508 - 32)
12596 /* An nds32_fag represent a gp-relative access.
12597 We find best fp-base by using a sliding window
12598 to find a base address which can cover most gp-access. */
12601 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12602 bfd_vma addr
; /* The address of this fag. */
12603 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12604 It is used for applying FP7U2_FLAG. */
12605 int count
; /* How many times this address is referred.
12606 There should be exactly `count' relocations
12608 int relas_capcity
; /* The buffer size of relas.
12609 We use an array instead of linked-list,
12610 and realloc is used to adjust buffer size. */
12614 nds32_fag_init (struct nds32_fag
*head
)
12616 memset (head
, 0, sizeof (struct nds32_fag
));
12620 nds32_fag_verify (struct nds32_fag
*head
)
12622 struct nds32_fag
*iter
;
12623 struct nds32_fag
*prev
;
12629 if (prev
&& prev
->addr
>= iter
->addr
)
12630 puts ("Bug in fp-as-gp insertion.");
12636 /* Insert a fag in ascending order.
12637 If a fag of the same address already exists,
12638 they are chained by relas array. */
12641 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12642 Elf_Internal_Rela
* rel
)
12644 struct nds32_fag
*iter
;
12645 struct nds32_fag
*new_fag
;
12646 const int INIT_RELAS_CAP
= 4;
12649 iter
->next
&& iter
->next
->addr
<= addr
;
12651 /* Find somewhere to insert. */ ;
12653 /* `iter' will be equal to `head' if the list is empty. */
12654 if (iter
!= head
&& iter
->addr
== addr
)
12656 /* The address exists in the list.
12657 Insert `rel' into relocation list, relas. */
12659 /* Check whether relas is big enough. */
12660 if (iter
->count
>= iter
->relas_capcity
)
12662 iter
->relas_capcity
*= 2;
12663 iter
->relas
= bfd_realloc
12664 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12666 iter
->relas
[iter
->count
++] = rel
;
12670 /* This is a new address. Create a fag node for it. */
12671 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12672 memset (new_fag
, 0, sizeof (*new_fag
));
12673 new_fag
->addr
= addr
;
12674 new_fag
->count
= 1;
12675 new_fag
->next
= iter
->next
;
12676 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12677 new_fag
->relas
= (Elf_Internal_Rela
**)
12678 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12679 new_fag
->relas
[0] = rel
;
12680 iter
->next
= new_fag
;
12682 nds32_fag_verify (head
);
12686 nds32_fag_free_list (struct nds32_fag
*head
)
12688 struct nds32_fag
*iter
;
12693 struct nds32_fag
*tmp
= iter
;
12701 /* Find the best fp-base address.
12702 The relocation associated with that address is returned,
12703 so we can track the symbol instead of a fixed address.
12705 When relaxation, the address of an datum may change,
12706 because a text section is shrinked, so the data section
12707 moves forward. If the aligments of text and data section
12708 are different, their distance may change too.
12709 Therefore, tracking a fixed address is not appriate. */
12712 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12714 struct nds32_fag
*base
; /* First fag in the window. */
12715 struct nds32_fag
*last
; /* First fag outside the window. */
12716 int accu
= 0; /* Usage accumulation. */
12717 struct nds32_fag
*best
; /* Best fag. */
12718 int baccu
= 0; /* Best accumulation. */
12720 /* Use first fag for initial, and find the last fag in the window.
12722 In each iteration, we could simply subtract previous fag
12723 and accumulate following fags which are inside the window,
12724 untill we each the end. */
12726 if (head
->next
== NULL
)
12732 /* Initialize base. */
12736 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12738 accu
+= last
->count
;
12742 /* Record the best base in each iteration. */
12745 accu
-= base
->count
;
12747 /* Account fags in window. */
12748 for (/* Nothing. */;
12749 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12751 accu
+= last
->count
;
12753 /* A better fp-base? */
12766 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12767 so we can convert it fo fp-relative access later.
12768 `best_fag' is the best fp-base. Only those inside the window
12769 of best_fag is applied the flag. */
12772 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12773 asection
*sec
, struct nds32_fag
*best_fag
,
12774 Elf_Internal_Rela
*internal_relocs
,
12775 Elf_Internal_Rela
*irelend
)
12777 struct nds32_fag
*ifag
;
12778 bfd_vma best_fpbase
, gp
;
12781 output_bfd
= sec
->output_section
->owner
;
12782 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12783 best_fpbase
= best_fag
->addr
;
12785 if (best_fpbase
> gp
+ sdata_range
[1][1]
12786 || best_fpbase
< gp
- sdata_range
[1][0])
12789 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12790 so we know they can be converted to lwi37.fp. */
12791 for (ifag
= best_fag
;
12792 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12796 for (i
= 0; i
< ifag
->count
; i
++)
12798 Elf_Internal_Rela
*insn16_rel
;
12799 Elf_Internal_Rela
*fag_rel
;
12801 fag_rel
= ifag
->relas
[i
];
12803 /* Only if this is within the WINDOWS, FP7U2_FLAG
12806 insn16_rel
= find_relocs_at_address
12807 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12809 if (insn16_rel
!= irelend
)
12810 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12816 /* Reset INSN16 to clean fp as gp. */
12819 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12820 Elf_Internal_Rela
*internal_relocs
,
12821 Elf_Internal_Rela
*irelend
)
12823 struct nds32_fag
*ifag
;
12825 Elf_Internal_Rela
*insn16_rel
;
12826 Elf_Internal_Rela
*fag_rel
;
12828 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12830 for (i
= 0; i
< ifag
->count
; i
++)
12832 fag_rel
= ifag
->relas
[i
];
12834 /* Restore the INSN16 relocation. */
12835 insn16_rel
= find_relocs_at_address
12836 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12838 if (insn16_rel
!= irelend
)
12839 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12844 /* This is the main function of fp-as-gp optimization.
12845 It should be called by relax_section. */
12848 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12849 bfd
*abfd
, asection
*sec
,
12850 Elf_Internal_Rela
*internal_relocs
,
12851 Elf_Internal_Rela
*irelend
,
12852 Elf_Internal_Sym
*isymbuf
)
12854 Elf_Internal_Rela
*begin_rel
= NULL
;
12855 Elf_Internal_Rela
*irel
;
12856 struct nds32_fag fag_head
;
12857 Elf_Internal_Shdr
*symtab_hdr
;
12858 bfd_byte
*contents
;
12859 bfd_boolean ifc_inside
= FALSE
;
12861 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12863 /* Per-function fp-base selection.
12864 1. Create a list for all the gp-relative access.
12865 2. Base on those gp-relative address,
12866 find a fp-base which can cover most access.
12867 3. Use the fp-base for fp-as-gp relaxation.
12869 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12871 1. delete the `la $fp, _FP_BASE_' instruction and
12872 2. not convert lwi.gp to lwi37.fp.
12874 To delete the _FP_BASE_ instruction, we simply apply
12875 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12877 To suppress the conversion, we simply NOT to apply
12878 R_NDS32_INSN16_FP7U2_FLAG flag. */
12880 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12882 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12883 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12886 /* Check whether it is worth for fp-as-gp optimization,
12887 i.e., at least 3 gp-load.
12889 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12890 apply this optimization. */
12892 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12894 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12895 One we enter the begin of the region, we track all the LW/ST
12896 instructions, so when we leave the region, we try to find
12897 the best fp-base address for those LW/ST instructions. */
12899 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12900 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12902 /* Begin of the region. */
12904 /* xgettext:c-format */
12905 _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd
, sec
);
12908 nds32_fag_init (&fag_head
);
12909 ifc_inside
= FALSE
;
12911 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12912 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12915 struct nds32_fag
*best_fag
, *tmp_fag
;
12918 /* End of the region.
12919 Check whether it is worth to do fp-as-gp. */
12921 if (begin_rel
== NULL
)
12923 /* xgettext:c-format */
12924 _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"),
12929 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12931 /* Clean FP7U2_FLAG because they may set ever. */
12932 tmp_fag
= fag_head
.next
;
12933 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12935 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12936 if (accu
< FAG_THRESHOLD
12937 || !nds32_fag_mark_relax (link_info
, sec
, best_fag
,
12938 internal_relocs
, irelend
))
12940 /* Not worth to do fp-as-gp. */
12941 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12942 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12943 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12944 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12945 nds32_fag_free_list (&fag_head
);
12950 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12951 so we use it to record the distance to the reloction of best
12953 dist
= best_fag
->relas
[0] - begin_rel
;
12954 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12955 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12956 relocation. And get the base value when relocating. */
12957 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12958 begin_rel
->r_addend
|= dist
<< 16;
12960 nds32_fag_free_list (&fag_head
);
12964 if (begin_rel
== NULL
|| ifc_inside
)
12965 /* Skip if we are not in the region of fp-as-gp. */
12968 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12969 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12974 /* A gp-relative access is found. Insert it to the fag-list. */
12976 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12977 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12978 if (!N32_IS_RT3 (insn
))
12981 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12982 nds32_fag_insert (&fag_head
, addr
, irel
);
12984 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12988 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12989 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12991 /* Suppress fp as gp when encounter ifc. */
12999 /* Remove unused `la $fp, _FD_BASE_' instruction. */
13002 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
13003 Elf_Internal_Rela
*internal_relocs
,
13004 Elf_Internal_Rela
*irelend
)
13006 Elf_Internal_Rela
*irel
;
13007 Elf_Internal_Shdr
*symtab_hdr
;
13008 bfd_byte
*contents
= NULL
;
13009 nds32_elf_blank_t
*relax_blank_list
= NULL
;
13010 bfd_boolean result
= TRUE
;
13011 bfd_boolean unused_region
= FALSE
;
13014 NOTE: Disable fp-as-gp if we encounter ifcall relocations:
13015 R_NDS32_17IFC_PCREL_RELA
13016 R_NDS32_10IFCU_PCREL_RELA. */
13018 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
13019 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
13021 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13023 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
13024 we marked to in previous pass.
13025 DO NOT scan relocations again, since we've alreadly decided it
13026 and set the flag. */
13027 const char *syname
;
13031 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
13032 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
13033 unused_region
= TRUE
;
13034 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
13035 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
13036 unused_region
= FALSE
;
13038 /* We're not in the region. */
13039 if (!unused_region
)
13042 /* _FP_BASE_ must be a GLOBAL symbol. */
13043 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
13044 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
13047 /* The symbol name must be _FP_BASE_. */
13048 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
13049 if (strcmp (syname
, FP_BASE_NAME
) != 0)
13052 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
13054 /* addi.gp $fp, -256 */
13055 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13056 if (insn
!= INSN_ADDIGP_TO_FP
)
13059 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
13061 /* addi $fp, $gp, -256 */
13062 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13063 if (insn
!= INSN_ADDI_GP_TO_FP
)
13066 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
13068 /* movi $fp, FP_BASE */
13069 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13070 if (insn
!= INSN_MOVI_TO_FP
)
13076 /* We got here because a FP_BASE instruction is found. */
13077 if (!insert_nds32_elf_blank_recalc_total
13078 (&relax_blank_list
, irel
->r_offset
, 4))
13083 if (relax_blank_list
)
13085 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
13086 relax_blank_list
= NULL
;
13095 /* This is a version of bfd_generic_get_relocated_section_contents.
13096 We need this variety because relaxation will modify the dwarf
13097 infomation. When there is undefined symbol reference error mesage,
13098 linker need to dump line number where the symbol be used. However
13099 the address is be relaxed, it can not get the original dwarf contents.
13100 The variety only modify function call for reading in the section. */
13103 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
13104 struct bfd_link_info
*link_info
,
13105 struct bfd_link_order
*link_order
,
13107 bfd_boolean relocatable
,
13110 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
13111 asection
*input_section
= link_order
->u
.indirect
.section
;
13113 arelent
**reloc_vector
;
13116 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
13117 if (reloc_size
< 0)
13120 /* Read in the section. */
13121 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13124 if (reloc_size
== 0)
13127 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13128 if (reloc_vector
== NULL
)
13131 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13132 reloc_vector
, symbols
);
13133 if (reloc_count
< 0)
13136 if (reloc_count
> 0)
13139 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13141 char *error_message
= NULL
;
13143 bfd_reloc_status_type r
;
13145 symbol
= *(*parent
)->sym_ptr_ptr
;
13146 if (symbol
->section
&& discarded_section (symbol
->section
))
13149 static reloc_howto_type none_howto
13150 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13151 "unused", FALSE
, 0, 0, FALSE
);
13153 off
= (*parent
)->address
* OCTETS_PER_BYTE (input_bfd
,
13155 _bfd_clear_contents ((*parent
)->howto
, input_bfd
,
13156 input_section
, data
, off
);
13157 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13158 (*parent
)->addend
= 0;
13159 (*parent
)->howto
= &none_howto
;
13163 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13165 relocatable
? abfd
: NULL
,
13170 asection
*os
= input_section
->output_section
;
13172 /* A partial link, so keep the relocs. */
13173 os
->orelocation
[os
->reloc_count
] = *parent
;
13177 if (r
!= bfd_reloc_ok
)
13181 case bfd_reloc_undefined
:
13182 (*link_info
->callbacks
->undefined_symbol
)
13183 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13184 input_bfd
, input_section
, (*parent
)->address
, TRUE
);
13186 case bfd_reloc_dangerous
:
13187 BFD_ASSERT (error_message
!= NULL
);
13188 (*link_info
->callbacks
->reloc_dangerous
)
13189 (link_info
, error_message
,
13190 input_bfd
, input_section
, (*parent
)->address
);
13192 case bfd_reloc_overflow
:
13193 (*link_info
->callbacks
->reloc_overflow
)
13195 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13196 (*parent
)->howto
->name
, (*parent
)->addend
,
13197 input_bfd
, input_section
, (*parent
)->address
);
13199 case bfd_reloc_outofrange
:
13201 This error can result when processing some partially
13202 complete binaries. Do not abort, but issue an error
13203 message instead. */
13204 link_info
->callbacks
->einfo
13205 /* xgettext:c-format */
13206 (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"),
13207 abfd
, input_section
, * parent
);
13218 free (reloc_vector
);
13222 free (reloc_vector
);
13226 /* Check target symbol. */
13229 nds32_elf_is_target_special_symbol (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*sym
)
13231 if (!sym
|| !sym
->name
|| sym
->name
[0] != '$')
13236 /* nds32 find maybe function sym. Ignore target special symbol
13237 first, and then go the general function. */
13239 static bfd_size_type
13240 nds32_elf_maybe_function_sym (const asymbol
*sym
, asection
*sec
,
13243 if (nds32_elf_is_target_special_symbol (NULL
, (asymbol
*) sym
))
13246 return _bfd_elf_maybe_function_sym (sym
, sec
, code_off
);
13250 /* Do TLS model conversion. */
13252 typedef struct relax_group_list_t
13254 Elf_Internal_Rela
*relo
;
13255 struct relax_group_list_t
*next
;
13256 struct relax_group_list_t
*next_sibling
;
13258 } relax_group_list_t
;
13261 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
);
13264 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
);
13267 dump_chain (relax_group_list_t
*pHead
);
13270 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
)
13272 relax_group_list_t
*pNext
= pHead
;
13275 while (pNext
->next
)
13277 if (pNext
->next
->id
> (int) pElem
->r_addend
)
13280 pNext
= pNext
->next
;
13284 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13288 relax_group_list_t
*tmp
= pNext
->next
;
13289 pNext
->next
= pNew
;
13291 pNew
->id
= pElem
->r_addend
;
13292 pNew
->relo
= pElem
;
13294 pNew
->next_sibling
= NULL
;
13300 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
)
13302 relax_group_list_t
*pNext
= pNode
;
13305 while (pNext
->next_sibling
)
13307 pNext
= pNext
->next_sibling
;
13311 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13315 relax_group_list_t
*tmp
= pNext
->next_sibling
;
13316 pNext
->next_sibling
= pNew
;
13319 pNew
->relo
= pElem
;
13321 pNew
->next_sibling
= tmp
;
13327 dump_chain (relax_group_list_t
*pHead
)
13329 relax_group_list_t
*pNext
= pHead
->next
;
13332 printf("group %d @ 0x%08x", pNext
->id
, (unsigned)pNext
->relo
->r_offset
);
13333 relax_group_list_t
*pNextSib
= pNext
->next_sibling
;
13336 printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib
->relo
->r_info
));
13337 pNextSib
= pNextSib
->next_sibling
;
13339 pNext
= pNext
->next
;
13344 /* Check R_NDS32_RELAX_GROUP of each section.
13345 There might be multiple sections in one object file. */
13348 elf32_nds32_check_relax_group (bfd
*abfd
, asection
*asec
)
13350 elf32_nds32_relax_group_t
*relax_group_ptr
=
13351 elf32_nds32_relax_group_ptr (abfd
);
13353 int min_id
= relax_group_ptr
->min_id
;
13354 int max_id
= relax_group_ptr
->max_id
;
13356 Elf_Internal_Rela
*rel
;
13357 Elf_Internal_Rela
*relend
;
13358 Elf_Internal_Rela
*relocs
;
13359 enum elf_nds32_reloc_type rtype
;
13363 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13364 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13365 TRUE
/* keep_memory */);
13366 if (relocs
== NULL
)
13369 /* Check R_NDS32_RELAX_GROUP. */
13370 relend
= relocs
+ asec
->reloc_count
;
13371 for (rel
= relocs
; rel
< relend
; rel
++)
13374 rtype
= ELF32_R_TYPE (rel
->r_info
);
13375 if (rtype
!= R_NDS32_RELAX_GROUP
)
13378 id
= rel
->r_addend
;
13381 else if (id
> max_id
)
13387 if (elf_section_data (asec
)->relocs
!= relocs
)
13390 if ((min_id
!= relax_group_ptr
->min_id
)
13391 || (max_id
!= relax_group_ptr
->max_id
))
13393 relax_group_ptr
->count
= max_id
- min_id
+ 1;
13394 BFD_ASSERT(min_id
<= relax_group_ptr
->min_id
);
13395 relax_group_ptr
->min_id
= min_id
;
13396 BFD_ASSERT(max_id
>= relax_group_ptr
->max_id
);
13397 relax_group_ptr
->max_id
= max_id
;
13400 return relax_group_ptr
->count
;
13403 /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */
13404 struct section_id_list_t
*relax_group_section_id_list
= NULL
;
13406 struct section_id_list_t
*
13407 elf32_nds32_lookup_section_id (int id
, struct section_id_list_t
**lst_ptr
)
13409 struct section_id_list_t
*result
= NULL
;
13410 struct section_id_list_t
*lst
= *lst_ptr
;
13414 result
= (struct section_id_list_t
*) calloc
13415 (1, sizeof (struct section_id_list_t
));
13416 BFD_ASSERT (result
); /* Feed me. */
13422 struct section_id_list_t
*cur
= lst
;
13423 struct section_id_list_t
*prv
= NULL
;
13424 struct section_id_list_t
*sec
= NULL
;
13437 cur
= NULL
; /* To insert after prv. */
13438 sec
= cur
; /* In case prv == NULL. */
13446 /* Insert after prv. */
13447 result
= (struct section_id_list_t
*) calloc
13448 (1, sizeof (struct section_id_list_t
));
13449 BFD_ASSERT (result
); /* Feed me. */
13453 result
->next
= prv
->next
;
13454 prv
->next
= result
;
13459 result
->next
= sec
;
13468 elf32_nds32_unify_relax_group (bfd
*abfd
, asection
*asec
)
13470 static int next_relax_group_bias
= 0;
13472 elf32_nds32_relax_group_t
*relax_group_ptr
=
13473 elf32_nds32_relax_group_ptr (abfd
);
13475 bfd_boolean result
= TRUE
;
13476 Elf_Internal_Rela
*rel
;
13477 Elf_Internal_Rela
*relend
;
13478 Elf_Internal_Rela
*relocs
= NULL
;
13479 enum elf_nds32_reloc_type rtype
;
13480 struct section_id_list_t
*node
= NULL
;
13485 if (0 == relax_group_ptr
->count
)
13488 /* Check if this section has been handled. */
13489 node
= elf32_nds32_lookup_section_id (asec
->id
, &relax_group_section_id_list
);
13491 break; /* Hit, the section id has handled. */
13493 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13494 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13495 TRUE
/* keep_memory */);
13496 if (relocs
== NULL
)
13498 BFD_ASSERT (0); /* feed me */
13502 /* Allocate group id bias for this bfd! */
13503 if (0 == relax_group_ptr
->init
)
13505 relax_group_ptr
->bias
= next_relax_group_bias
;
13506 next_relax_group_bias
+= relax_group_ptr
->count
;
13507 relax_group_ptr
->init
= 1;
13510 /* Reorder relax group groups. */
13511 relend
= relocs
+ asec
->reloc_count
;
13512 for (rel
= relocs
; rel
< relend
; rel
++)
13514 rtype
= ELF32_R_TYPE(rel
->r_info
);
13515 if (rtype
!= R_NDS32_RELAX_GROUP
)
13519 rel
->r_addend
+= relax_group_ptr
->bias
;
13520 /* Debugging count. */
13526 if (elf_section_data (asec
)->relocs
!= relocs
)
13533 nds32_elf_unify_tls_model (bfd
*inbfd
, asection
*insec
, bfd_byte
*incontents
,
13534 struct bfd_link_info
*lnkinfo
)
13536 bfd_boolean result
= TRUE
;
13537 Elf_Internal_Rela
*irel
;
13538 Elf_Internal_Rela
*irelend
;
13539 Elf_Internal_Rela
*internal_relocs
;
13540 unsigned long r_symndx
;
13541 enum elf_nds32_reloc_type r_type
;
13543 Elf_Internal_Sym
*local_syms
= NULL
;
13544 bfd_byte
*contents
= NULL
;
13546 relax_group_list_t chain
= { .id
= -1, .next
= NULL
, .next_sibling
= NULL
};
13548 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (inbfd
)->symtab_hdr
;
13549 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
13550 sym_hashes
= elf_sym_hashes (inbfd
);
13552 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
13553 if (!elf_bad_symtab (inbfd
))
13554 sym_hashes_end
-= symtab_hdr
->sh_info
;
13556 /* Reorder RELAX_GROUP when command line option '-r' is applied. */
13557 if (bfd_link_relocatable (lnkinfo
))
13559 elf32_nds32_unify_relax_group (inbfd
, insec
);
13563 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13564 internal_relocs
= _bfd_elf_link_read_relocs (inbfd
, insec
, NULL
, NULL
,
13565 TRUE
/* keep_memory */);
13566 if (internal_relocs
== NULL
)
13569 irelend
= internal_relocs
+ insec
->reloc_count
;
13570 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
13571 irelend
, R_NDS32_RELAX_ENTRY
);
13572 if (irel
== irelend
)
13575 /* Chain/remove groups. */
13576 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13578 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13579 r_type
= ELF32_R_TYPE (irel
->r_info
);
13580 if (r_type
!= R_NDS32_RELAX_GROUP
)
13584 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_NONE
);
13585 /* Chain it now. */
13586 if (!list_insert (&chain
, irel
))
13590 /* Collect group relocations. */
13591 /* Presume relocations are sorted. */
13592 relax_group_list_t
*pNext
= chain
.next
;
13595 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13597 if (irel
->r_offset
== pNext
->relo
->r_offset
)
13599 /* Ignore Non-TLS relocation types. */
13600 r_type
= ELF32_R_TYPE (irel
->r_info
);
13601 if ((R_NDS32_TLS_LE_HI20
> r_type
)
13602 || (R_NDS32_RELAX_ENTRY
== r_type
))
13605 if (!list_insert_sibling (pNext
, irel
))
13608 else if (irel
->r_offset
> pNext
->relo
->r_offset
)
13610 pNext
= pNext
->next
;
13614 bfd_vma current_offset
= pNext
->relo
->r_offset
;
13615 if (irel
->r_offset
> current_offset
)
13616 irel
= internal_relocs
; /* restart from head */
13618 --irel
; /* Check current irel again. */
13623 /* This shouldn't be reached. */
13627 pNext
= pNext
->next
;
13630 #ifdef DUBUG_VERBOSE
13631 dump_chain(&chain
);
13634 /* Get symbol table and section content. */
13636 contents
= incontents
;
13637 else if (!nds32_get_section_contents (inbfd
, insec
, &contents
, TRUE
)
13638 || !nds32_get_local_syms (inbfd
, insec
, &local_syms
))
13641 char *local_got_tls_type
= elf32_nds32_local_got_tls_type (inbfd
);
13643 /* Convert TLS model each group if necessary. */
13644 pNext
= chain
.next
;
13646 int cur_grp_id
= -1;
13649 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
13651 tls_type
= org_tls_type
= eff_tls_type
= 0;
13655 relax_group_list_t
*pNextSig
= pNext
->next_sibling
;
13658 struct elf_link_hash_entry
*h
= NULL
;
13660 irel
= pNextSig
->relo
;
13661 r_symndx
= ELF32_R_SYM(irel
->r_info
);
13662 r_type
= ELF32_R_TYPE(irel
->r_info
);
13664 if (pNext
->id
!= cur_grp_id
)
13666 cur_grp_id
= pNext
->id
;
13667 org_tls_type
= get_tls_type (r_type
, NULL
);
13668 if (r_symndx
>= symtab_hdr
->sh_info
)
13670 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13671 while (h
->root
.type
== bfd_link_hash_indirect
13672 || h
->root
.type
== bfd_link_hash_warning
)
13673 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
13674 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
13678 tls_type
= local_got_tls_type
13679 ? local_got_tls_type
[r_symndx
]
13683 eff_tls_type
= 1 << (fls (tls_type
) - 1);
13684 sethi_rt
= N32_RT5(bfd_getb32 (contents
+ irel
->r_offset
));
13687 if (eff_tls_type
!= org_tls_type
)
13689 switch (org_tls_type
)
13691 /* DESC to IEGP/IE/LE. */
13693 switch (eff_tls_type
)
13698 case R_NDS32_TLS_DESC_HI20
:
13699 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13700 R_NDS32_TLS_IE_HI20
);
13702 case R_NDS32_TLS_DESC_LO12
:
13703 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13704 R_NDS32_TLS_IE_LO12
);
13706 case R_NDS32_TLS_DESC_ADD
:
13708 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13709 add_rt
= N32_RT5 (insn
);
13710 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13711 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13713 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13716 case R_NDS32_TLS_DESC_FUNC
:
13717 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13718 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13719 R_NDS32_RELAX_REMOVE
);
13721 case R_NDS32_TLS_DESC_CALL
:
13723 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13725 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13727 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13730 case R_NDS32_LOADSTORE
:
13732 case R_NDS32_PTR_RESOLVED
:
13734 case R_NDS32_LABEL
:
13744 case R_NDS32_TLS_DESC_HI20
:
13745 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13746 R_NDS32_TLS_IEGP_HI20
);
13748 case R_NDS32_TLS_DESC_LO12
:
13749 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13750 R_NDS32_TLS_IEGP_LO12
);
13752 case R_NDS32_TLS_DESC_ADD
:
13754 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13755 add_rt
= N32_RT5 (insn
);
13756 insn
= N32_MEM(LW
, add_rt
, sethi_rt
, REG_GP
, 0);
13757 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13759 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13762 case R_NDS32_TLS_DESC_FUNC
:
13763 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13764 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13765 R_NDS32_RELAX_REMOVE
);
13767 case R_NDS32_TLS_DESC_CALL
:
13769 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13771 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13773 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13776 case R_NDS32_LOADSTORE
:
13778 case R_NDS32_PTR_RESOLVED
:
13780 case R_NDS32_LABEL
:
13790 case R_NDS32_TLS_DESC_HI20
:
13791 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13793 case R_NDS32_TLS_DESC_LO12
:
13794 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13796 case R_NDS32_TLS_DESC_ADD
:
13798 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13800 add_rt
= N32_RT5 (insn
);
13801 insn
= N32_ALU1 (ADD
, REG_R0
, sethi_rt
, REG_TP
);
13802 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13804 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_ADD
);
13807 case R_NDS32_TLS_DESC_FUNC
:
13808 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13809 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13811 case R_NDS32_TLS_DESC_CALL
:
13812 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13813 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13815 case R_NDS32_LOADSTORE
:
13817 case R_NDS32_PTR_RESOLVED
:
13819 case R_NDS32_LABEL
:
13830 /* IEGP to IE/LE. */
13832 switch (eff_tls_type
)
13837 case R_NDS32_TLS_IEGP_HI20
:
13838 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13839 R_NDS32_TLS_IE_HI20
);
13841 case R_NDS32_TLS_IEGP_LO12
:
13842 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13843 R_NDS32_TLS_IE_LO12
);
13845 case R_NDS32_PTR_RESOLVED
:
13847 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13849 add_rt
= N32_RT5 (insn
);
13850 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13851 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13854 case R_NDS32_TLS_IEGP_LW
:
13856 case R_NDS32_LOADSTORE
:
13859 case R_NDS32_LABEL
:
13869 case R_NDS32_TLS_IEGP_HI20
:
13870 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13872 case R_NDS32_TLS_IEGP_LO12
:
13873 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13875 case R_NDS32_TLS_IEGP_LW
:
13876 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13877 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13879 case R_NDS32_LOADSTORE
:
13882 case R_NDS32_LABEL
:
13883 case R_NDS32_PTR_RESOLVED
:
13896 switch (eff_tls_type
)
13901 case R_NDS32_TLS_IE_HI20
:
13902 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13904 case R_NDS32_TLS_IE_LO12S2
:
13906 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13908 add_rt
= N32_RT5 (insn
);
13909 insn
= N32_TYPE2 (ORI
, add_rt
, sethi_rt
, 0);
13910 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13912 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13915 case R_NDS32_LOADSTORE
:
13918 case R_NDS32_LABEL
:
13933 pNextSig
= pNextSig
->next_sibling
;
13937 pNext
= pNext
->next
;
13941 if (pNext
->id
!= cur_grp_id
)
13943 pNext
= pNext
->next
;
13952 if (elf_section_data (insec
)->relocs
!= internal_relocs
)
13953 free (internal_relocs
);
13955 if (elf_section_data (insec
)->this_hdr
.contents
!= contents
)
13958 if (symtab_hdr
->contents
!= (bfd_byte
*) local_syms
)
13963 pNext
= chain
.next
;
13964 relax_group_list_t
*pDel
;
13968 pNext
= pNext
->next
;
13980 /* End TLS model conversion. */
13982 #define ELF_ARCH bfd_arch_nds32
13983 #define ELF_MACHINE_CODE EM_NDS32
13984 #define ELF_MAXPAGESIZE 0x1000
13985 #define ELF_TARGET_ID NDS32_ELF_DATA
13987 #define TARGET_BIG_SYM nds32_elf32_be_vec
13988 #define TARGET_BIG_NAME "elf32-nds32be"
13989 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
13990 #define TARGET_LITTLE_NAME "elf32-nds32le"
13992 #define elf_info_to_howto nds32_info_to_howto
13993 #define elf_info_to_howto_rel nds32_info_to_howto_rel
13995 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
13996 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
13997 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
13998 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
13999 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
14001 #define bfd_elf32_mkobject nds32_elf_mkobject
14002 #define elf_backend_action_discarded nds32_elf_action_discarded
14003 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
14004 #define elf_backend_check_relocs nds32_elf_check_relocs
14005 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
14006 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
14007 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
14008 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
14009 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
14010 #define elf_backend_relocate_section nds32_elf_relocate_section
14011 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
14012 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
14013 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
14014 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
14015 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
14016 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
14017 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
14018 #define elf_backend_object_p nds32_elf_object_p
14019 #define elf_backend_final_write_processing nds32_elf_final_write_processing
14020 #define elf_backend_special_sections nds32_elf_special_sections
14021 #define elf_backend_section_flags nds32_elf_section_flags
14022 #define bfd_elf32_bfd_get_relocated_section_contents \
14023 nds32_elf_get_relocated_section_contents
14024 #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol
14025 #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym
14027 #define elf_backend_can_gc_sections 1
14028 #define elf_backend_can_refcount 1
14029 #define elf_backend_want_got_plt 1
14030 #define elf_backend_plt_readonly 1
14031 #define elf_backend_want_plt_sym 0
14032 #define elf_backend_got_header_size 12
14033 #define elf_backend_may_use_rel_p 1
14034 #define elf_backend_default_use_rela_p 1
14035 #define elf_backend_may_use_rela_p 1
14036 #define elf_backend_dtrel_excludes_plt 0
14038 #include "elf32-target.h"
14040 #undef ELF_MAXPAGESIZE
14041 #define ELF_MAXPAGESIZE 0x2000
14043 #undef TARGET_BIG_SYM
14044 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
14045 #undef TARGET_BIG_NAME
14046 #define TARGET_BIG_NAME "elf32-nds32be-linux"
14047 #undef TARGET_LITTLE_SYM
14048 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
14049 #undef TARGET_LITTLE_NAME
14050 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
14052 #define elf32_bed elf32_nds32_lin_bed
14054 #include "elf32-target.h"