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
;
4267 htab
= nds32_elf_hash_table (info
);
4271 dynobj
= elf_hash_table (info
)->dynobj
;
4272 BFD_ASSERT (dynobj
!= NULL
);
4274 if (elf_hash_table (info
)->dynamic_sections_created
)
4276 /* Set the contents of the .interp section to the interpreter. */
4277 if (bfd_link_executable (info
) && !info
->nointerp
)
4279 s
= bfd_get_section_by_name (dynobj
, ".interp");
4280 BFD_ASSERT (s
!= NULL
);
4281 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
4282 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
4286 /* Set up .got offsets for local syms, and space for local dynamic
4288 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
4290 bfd_signed_vma
*local_got
;
4291 bfd_signed_vma
*end_local_got
;
4292 bfd_size_type locsymcount
;
4293 Elf_Internal_Shdr
*symtab_hdr
;
4295 char *local_tls_type
;
4296 unsigned long symndx
;
4297 bfd_vma
*local_tlsdesc_gotent
;
4299 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4302 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4304 struct elf_dyn_relocs
*p
;
4306 for (p
= ((struct elf_dyn_relocs
*)
4307 elf_section_data (s
)->local_dynrel
);
4308 p
!= NULL
; p
= p
->next
)
4310 if (!bfd_is_abs_section (p
->sec
)
4311 && bfd_is_abs_section (p
->sec
->output_section
))
4313 /* Input section has been discarded, either because
4314 it is a copy of a linkonce section or due to
4315 linker script /DISCARD/, so we'll be discarding
4318 else if (p
->count
!= 0)
4320 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4321 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4322 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4323 info
->flags
|= DF_TEXTREL
;
4328 local_got
= elf_local_got_refcounts (ibfd
);
4332 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4333 locsymcount
= symtab_hdr
->sh_info
;
4334 end_local_got
= local_got
+ locsymcount
;
4335 sgot
= elf_hash_table (info
)->sgot
;
4336 local_tls_type
= elf32_nds32_local_got_tls_type (ibfd
);
4337 local_tlsdesc_gotent
= elf32_nds32_local_tlsdesc_gotent (ibfd
);
4338 for (symndx
= 0; local_got
< end_local_got
;
4339 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
, ++symndx
)
4343 int num_of_got_entry_needed
= 0;
4344 *local_got
= sgot
->size
;
4345 *local_tlsdesc_gotent
= sgot
->size
;
4347 /* TLS_NORMAL, and TLS_IE need one slot in .got. */
4348 if (*local_tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4349 num_of_got_entry_needed
= 1;
4350 /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */
4351 else if (*local_tls_type
& GOT_TLS_DESC
)
4352 num_of_got_entry_needed
= 2;
4354 sgot
->size
+= (num_of_got_entry_needed
<< 2);
4356 /* non-relax-able TLS_DESCs need a slot in .rela.plt.
4357 others need a slot in .rela.got. */
4358 if (*local_tls_type
== GOT_TLS_DESC
)
4360 if (bfd_link_pic (info
))
4362 if (htab
->tls_desc_trampoline
)
4364 htab
->num_tls_desc
++;
4365 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
4366 htab
->tls_trampoline
= -1;
4369 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4373 /* TLS_DESC -> TLS_LE */
4378 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4383 *local_got
= (bfd_vma
) -1;
4384 *local_tlsdesc_gotent
= (bfd_vma
) -1;
4389 /* Allocate global sym .plt and .got entries, and space for global
4390 sym dynamic relocs. */
4391 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4393 /* For every jump slot reserved in the sgotplt, reloc_count is
4394 incremented. However, when we reserve space for TLS descriptors,
4395 it's not incremented, so in order to compute the space reserved
4396 for them, it suffices to multiply the reloc count by the jump
4398 if (htab
->tls_desc_trampoline
&& htab
->root
.srelplt
)
4399 htab
->sgotplt_jump_table_size
= elf32_nds32_compute_jump_table_size (htab
);
4401 if (htab
->tls_trampoline
)
4403 htab
->tls_trampoline
= htab
->root
.splt
->size
;
4405 /* If we're not using lazy TLS relocations, don't generate the
4406 PLT and GOT entries they require. */
4407 if ((info
->flags
& DF_BIND_NOW
))
4408 htab
->root
.tlsdesc_plt
= 0;
4411 htab
->root
.tlsdesc_got
= htab
->root
.sgot
->size
;
4412 htab
->root
.sgot
->size
+= 4;
4414 htab
->root
.tlsdesc_plt
= htab
->root
.splt
->size
;
4415 htab
->root
.splt
->size
+= 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
);
4419 /* We now have determined the sizes of the various dynamic sections.
4420 Allocate memory for them. */
4421 /* The check_relocs and adjust_dynamic_symbol entry points have
4422 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
)
4484 return _bfd_elf_add_dynamic_tags (output_bfd
, info
, relocs
);
4487 static bfd_reloc_status_type
4488 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4489 bfd_vma relocation
, bfd_byte
*location
)
4493 bfd_reloc_status_type flag
;
4494 unsigned int rightshift
= howto
->rightshift
;
4495 unsigned int bitpos
= howto
->bitpos
;
4497 /* If the size is negative, negate RELOCATION. This isn't very
4499 if (howto
->size
< 0)
4500 relocation
= -relocation
;
4502 /* Get the value we are going to relocate. */
4503 size
= bfd_get_reloc_size (howto
);
4510 return bfd_reloc_ok
;
4512 x
= bfd_getb16 (location
);
4515 x
= bfd_getb32 (location
);
4519 /* Check for overflow. FIXME: We may drop bits during the addition
4520 which we don't check for. We must either check at every single
4521 operation, which would be tedious, or we must do the computations
4522 in a type larger than bfd_vma, which would be inefficient. */
4523 flag
= bfd_reloc_ok
;
4524 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4526 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4529 /* Get the values to be added together. For signed and unsigned
4530 relocations, we assume that all values should be truncated to
4531 the size of an address. For bitfields, all the bits matter.
4532 See also bfd_check_overflow. */
4533 fieldmask
= N_ONES (howto
->bitsize
);
4534 signmask
= ~fieldmask
;
4535 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4536 a
= (relocation
& addrmask
) >> rightshift
;
4537 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4539 switch (howto
->complain_on_overflow
)
4541 case complain_overflow_signed
:
4542 /* If any sign bits are set, all sign bits must be set.
4543 That is, A must be a valid negative address after
4545 signmask
= ~(fieldmask
>> 1);
4548 case complain_overflow_bitfield
:
4549 /* Much like the signed check, but for a field one bit
4550 wider. We allow a bitfield to represent numbers in the
4551 range -2**n to 2**n-1, where n is the number of bits in the
4552 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4553 can't overflow, which is exactly what we want. */
4555 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4556 flag
= bfd_reloc_overflow
;
4558 /* We only need this next bit of code if the sign bit of B
4559 is below the sign bit of A. This would only happen if
4560 SRC_MASK had fewer bits than BITSIZE. Note that if
4561 SRC_MASK has more bits than BITSIZE, we can get into
4562 trouble; we would need to verify that B is in range, as
4563 we do for A above. */
4564 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4567 /* Set all the bits above the sign bit. */
4570 /* Now we can do the addition. */
4573 /* See if the result has the correct sign. Bits above the
4574 sign bit are junk now; ignore them. If the sum is
4575 positive, make sure we did not have all negative inputs;
4576 if the sum is negative, make sure we did not have all
4577 positive inputs. The test below looks only at the sign
4578 bits, and it really just
4579 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4581 We mask with addrmask here to explicitly allow an address
4582 wrap-around. The Linux kernel relies on it, and it is
4583 the only way to write assembler code which can run when
4584 loaded at a location 0x80000000 away from the location at
4585 which it is linked. */
4586 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4587 flag
= bfd_reloc_overflow
;
4591 case complain_overflow_unsigned
:
4592 /* Checking for an unsigned overflow is relatively easy:
4593 trim the addresses and add, and trim the result as well.
4594 Overflow is normally indicated when the result does not
4595 fit in the field. However, we also need to consider the
4596 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4597 input is 0x80000000, and bfd_vma is only 32 bits; then we
4598 will get sum == 0, but there is an overflow, since the
4599 inputs did not fit in the field. Instead of doing a
4600 separate test, we can check for this by or-ing in the
4601 operands when testing for the sum overflowing its final
4603 sum
= (a
+ b
) & addrmask
;
4604 if ((a
| b
| sum
) & signmask
)
4605 flag
= bfd_reloc_overflow
;
4613 /* Put RELOCATION in the right bits. */
4614 relocation
>>= (bfd_vma
) rightshift
;
4615 relocation
<<= (bfd_vma
) bitpos
;
4617 /* Add RELOCATION to the right bits of X. */
4619 Because the relaxation may generate duplicate relocation at one address,
4620 an addition to immediate in the instruction may cause the relocation added
4622 This bug should be fixed in assembler, but a check is also needed here. */
4623 if (howto
->partial_inplace
)
4624 x
= ((x
& ~howto
->dst_mask
)
4625 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4627 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4630 /* Put the relocated value back in the object file. */
4640 bfd_putb16 (x
, location
);
4643 bfd_putb32 (x
, location
);
4650 static bfd_reloc_status_type
4651 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4652 asection
*input_section
, bfd_byte
*contents
,
4653 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4657 /* Sanity check the address. */
4658 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4659 return bfd_reloc_outofrange
;
4661 /* This function assumes that we are dealing with a basic relocation
4662 against a symbol. We want to compute the value of the symbol to
4663 relocate to. This is just VALUE, the value of the symbol, plus
4664 ADDEND, any addend associated with the reloc. */
4665 relocation
= value
+ addend
;
4667 /* If the relocation is PC relative, we want to set RELOCATION to
4668 the distance between the symbol (currently in RELOCATION) and the
4669 location we are relocating. If pcrel_offset is FALSE we do not
4670 need to subtract out the offset of the location within the
4671 section (which is just ADDRESS). */
4672 if (howto
->pc_relative
)
4674 relocation
-= (input_section
->output_section
->vma
4675 + input_section
->output_offset
);
4676 if (howto
->pcrel_offset
)
4677 relocation
-= address
;
4680 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4681 contents
+ address
);
4685 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4687 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4688 asection
*input_sec
,
4689 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4692 FILE *sym_ld_script
= NULL
;
4693 struct elf_nds32_link_hash_table
*table
;
4695 table
= nds32_elf_hash_table (info
);
4696 sym_ld_script
= table
->sym_ld_script
;
4700 if (!h
|| !name
|| *name
== '\0')
4703 if (input_sec
->flags
& SEC_EXCLUDE
)
4706 if (!check_start_export_sym
)
4708 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4709 check_start_export_sym
= 1;
4712 if (h
->root
.type
== bfd_link_hash_defined
4713 || h
->root
.type
== bfd_link_hash_defweak
)
4715 if (!h
->root
.u
.def
.section
->output_section
)
4718 if (bfd_is_const_section (input_sec
))
4719 source
= input_sec
->name
;
4721 source
= bfd_get_filename (input_sec
->owner
);
4723 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4724 h
->root
.root
.string
,
4725 (long) (h
->root
.u
.def
.value
4726 + h
->root
.u
.def
.section
->output_section
->vma
4727 + h
->root
.u
.def
.section
->output_offset
), source
);
4733 /* Relocate an NDS32/D ELF section.
4734 There is some attempt to make this function usable for many architectures,
4735 both for RELA and REL type relocs, if only to serve as a learning tool.
4737 The RELOCATE_SECTION function is called by the new ELF backend linker
4738 to handle the relocations for a section.
4740 The relocs are always passed as Rela structures; if the section
4741 actually uses Rel structures, the r_addend field will always be
4744 This function is responsible for adjust the section contents as
4745 necessary, and (if using Rela relocs and generating a
4746 relocatable output file) adjusting the reloc addend as
4749 This function does not have to worry about setting the reloc
4750 address or the reloc symbol index.
4752 LOCAL_SYMS is a pointer to the swapped in local symbols.
4754 LOCAL_SECTIONS is an array giving the section in the input file
4755 corresponding to the st_shndx field of each local symbol.
4757 The global hash table entry for the global symbols can be found
4758 via elf_sym_hashes (input_bfd).
4760 When generating relocatable output, this function must handle
4761 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4762 going to be the section symbol corresponding to the output
4763 section, which means that the addend must be adjusted
4766 /* Return the base VMA address which should be subtracted from real addresses
4767 when resolving @dtpoff relocation.
4768 This is PT_TLS segment p_vaddr. */
4770 /* Return the relocation value for @tpoff relocation
4771 if STT_TLS virtual address is ADDRESS. */
4773 /* Return the relocation value for @gottpoff relocation
4774 if STT_TLS virtual address is ADDRESS. */
4777 gottpoff (struct bfd_link_info
*info
, bfd_vma address
)
4782 /* If tls_sec is NULL, we should have signalled an error already. */
4783 if (elf_hash_table (info
)->tls_sec
== NULL
)
4786 tp_base
= elf_hash_table (info
)->tls_sec
->vma
;
4787 tp_offset
= address
- tp_base
;
4793 patch_tls_desc_to_ie (bfd_byte
*contents
, Elf_Internal_Rela
*rel
, bfd
*ibfd
)
4795 /* TLS_GD/TLS_LD model #1
4796 46 00 00 00 sethi $r0,#0x0
4797 58 00 00 00 ori $r0,$r0,#0x0
4798 40 00 74 00 add $r0,$r0,$gp
4799 04 10 00 00 lwi $r1,[$r0+#0x0]
4800 4b e0 04 01 jral $lp,$r1 */
4802 /* TLS_GD/TLS_LD model #2
4803 46 00 00 00 sethi $r0,#0x0
4804 58 00 00 00 ori $r0,$r0,#0x0
4805 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)]
4806 40 00 74 00 add $r0,$r0,$gp
4807 4b e0 04 01 jral $lp,$r1 */
4809 /* TLS_IE model (non-PIC)
4810 46 00 00 00 sethi $r0,#0x0
4811 04 00 00 00 lwi $r0,[$r0+#0x0]
4812 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4814 /* TLS_IE model (PIC)
4815 46 00 00 00 sethi $r0,#0x0
4816 58 00 00 00 ori $r0,$r0,#0x0
4817 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)]
4818 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4820 /* TLS_GD_TO_IE model
4821 46 00 00 00 sethi $r0,#0x0
4822 58 00 00 00 ori $r0,$r0,#0x0
4823 40 00 74 00 add $r0,$rM,$gp
4824 04 00 00 01 lwi $r0,[$r0+#0x4]
4825 40 00 64 00 add $r0,$r0,$r25 */
4827 bfd_boolean rz
= FALSE
;
4837 0x40007400, /* add $r0,$rM,$gp */
4838 0x04000001, /* lwi $r0,[$r0+#0x4] */
4839 0x40006400, /* add $r0,$r0,$r25 */
4844 { 0x40000000, 0xfe0003ff },
4845 { 0x04000000, 0xfe000000 },
4846 { 0x4be00001, 0xffff83ff },
4851 { 0x38007402, 0xfe007fff },
4852 { 0x40007400, 0xfe007fff },
4853 { 0x4be00001, 0xffff83ff },
4856 unsigned char *p
= contents
+ rel
->r_offset
;
4859 uint32_t regidx
= 0;
4860 insn
= bfd_getb32 (p
);
4861 if (INSN_SETHI
== (0xfe0fffffu
& insn
))
4863 regidx
= 0x1f & (insn
>> 20);
4867 insn
= bfd_getb32 (p
);
4868 if (INSN_ORI
== (0xfe007fffu
& insn
))
4870 regidx
= 0x1f & (insn
>> 20);
4874 if (patch
[2] == bfd_getb32 (p
+ 8)) /* Character instruction. */
4876 /* already patched? */
4877 if ((patch
[0] == (0xfff07fffu
& bfd_getb32 (p
+ 0))) &&
4878 (patch
[1] == bfd_getb32 (p
+ 4)))
4881 else if (mode0
[0].opcode
== (mode0
[0].mask
& bfd_getb32 (p
+ 0)))
4883 if ((mode0
[1].opcode
== (mode0
[1].mask
& bfd_getb32 (p
+ 4))) &&
4884 (mode0
[2].opcode
== (mode0
[2].mask
& bfd_getb32 (p
+ 8))))
4886 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4887 bfd_putb32 (patch
[1], p
+ 4);
4888 bfd_putb32 (patch
[2], p
+ 8);
4892 else if (mode1
[0].opcode
== (mode1
[0].mask
& bfd_getb32 (p
+ 0)))
4894 if ((mode1
[1].opcode
== (mode1
[1].mask
& bfd_getb32 (p
+ 4))) &&
4895 (mode1
[2].opcode
== (mode1
[2].mask
& bfd_getb32 (p
+ 8))))
4897 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4898 bfd_putb32 (patch
[1], p
+ 4);
4899 bfd_putb32 (patch
[2], p
+ 8);
4906 printf ("%s: %s @ 0x%08x\n", __func__
, bfd_get_filename (ibfd
),
4907 (int) rel
->r_offset
);
4908 BFD_ASSERT(0); /* Unsupported pattern. */
4914 static enum elf_nds32_tls_type
4915 get_tls_type (enum elf_nds32_reloc_type r_type
, struct elf_link_hash_entry
*h
);
4918 ones32 (register unsigned int x
)
4920 /* 32-bit recursive reduction using SWAR...
4921 but first step is mapping 2-bit values
4922 into sum of 2 1-bit values in sneaky way. */
4923 x
-= ((x
>> 1) & 0x55555555);
4924 x
= (((x
>> 2) & 0x33333333) + (x
& 0x33333333));
4925 x
= (((x
>> 4) + x
) & 0x0f0f0f0f);
4928 return (x
& 0x0000003f);
4933 fls (register unsigned int x
)
4935 return ffs (x
& (-x
));
4937 #endif /* !HAVE_FLS */
4939 #define nds32_elf_local_tlsdesc_gotent(bfd) \
4940 (elf_nds32_tdata (bfd)->local_tlsdesc_gotent)
4943 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
4944 struct bfd_link_info
* info
,
4946 asection
* input_section
,
4947 bfd_byte
* contents
,
4948 Elf_Internal_Rela
* relocs
,
4949 Elf_Internal_Sym
* local_syms
,
4950 asection
** local_sections
)
4952 Elf_Internal_Shdr
*symtab_hdr
;
4953 struct elf_link_hash_entry
**sym_hashes
;
4954 Elf_Internal_Rela
*rel
, *relend
;
4955 bfd_boolean ret
= TRUE
; /* Assume success. */
4957 bfd_reloc_status_type r
;
4958 const char *errmsg
= NULL
;
4960 struct elf_link_hash_table
*ehtab
;
4961 struct elf_nds32_link_hash_table
*htab
;
4963 bfd_vma
*local_got_offsets
;
4964 asection
*sgot
, *splt
, *sreloc
;
4965 bfd_vma high_address
;
4966 struct elf_nds32_link_hash_table
*table
;
4967 int eliminate_gc_relocs
;
4968 bfd_vma fpbase_addr
;
4970 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4971 sym_hashes
= elf_sym_hashes (input_bfd
);
4972 ehtab
= elf_hash_table (info
);
4973 htab
= nds32_elf_hash_table (info
);
4974 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
4976 dynobj
= htab
->root
.dynobj
;
4977 local_got_offsets
= elf_local_got_offsets (input_bfd
);
4984 relend
= relocs
+ input_section
->reloc_count
;
4986 table
= nds32_elf_hash_table (info
);
4987 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
4989 /* By this time, we can adjust the value of _SDA_BASE_. */
4990 /* Explain _SDA_BASE_ */
4991 if ((!bfd_link_relocatable (info
)))
4993 is_SDA_BASE_set
= 1;
4994 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
4995 if (r
!= bfd_reloc_ok
)
4999 /* Do TLS model conversion once at first. */
5000 nds32_elf_unify_tls_model (input_bfd
, input_section
, contents
, info
);
5002 /* Use gp as fp to prevent truncated fit. Because in relaxation time
5003 the fp value is set as gp, and it has be reverted for instruction
5005 fpbase_addr
= elf_gp (output_bfd
);
5007 /* Deal with (dynamic) relocations. */
5008 for (rel
= relocs
; rel
< relend
; rel
++)
5010 enum elf_nds32_reloc_type r_type
;
5011 reloc_howto_type
*howto
= NULL
;
5012 unsigned long r_symndx
;
5013 struct elf_link_hash_entry
*h
= NULL
;
5014 Elf_Internal_Sym
*sym
= NULL
;
5017 bfd_vma relocation_sym
= 0xdeadbeef;
5018 Elf_Internal_Rela
*lorel
;
5021 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
5022 ensure it's zero (we use REL relocs, not RELA). Therefore this
5023 should be assigning zero to `addend', but for clarity we use
5026 bfd_vma addend
= rel
->r_addend
;
5027 bfd_vma offset
= rel
->r_offset
;
5029 r_type
= ELF32_R_TYPE (rel
->r_info
);
5030 if (r_type
>= R_NDS32_max
)
5032 /* xgettext:c-format */
5033 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
5035 bfd_set_error (bfd_error_bad_value
);
5040 if (r_type
== R_NDS32_GNU_VTENTRY
5041 || r_type
== R_NDS32_GNU_VTINHERIT
5042 || r_type
== R_NDS32_NONE
5043 || r_type
== R_NDS32_RELA_GNU_VTENTRY
5044 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
5045 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
5046 || r_type
== R_NDS32_DATA
5047 || r_type
== R_NDS32_TRAN
)
5050 /* If we enter the fp-as-gp region. Resolve the address
5052 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
5053 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5057 /* Distance to relocation of best fp-base is encoded in R_SYM. */
5058 dist
= rel
->r_addend
>> 16;
5059 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
5060 local_syms
, symtab_hdr
);
5062 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
5063 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5065 fpbase_addr
= elf_gp (output_bfd
);
5068 /* Skip the relocations used for relaxation. */
5069 /* We have to update LONGCALL and LONGJUMP
5070 relocations when generating the relocatable files. */
5071 if (!bfd_link_relocatable (info
)
5072 && (r_type
>= R_NDS32_RELAX_ENTRY
5073 || (r_type
>= R_NDS32_LONGCALL4
5074 && r_type
<= R_NDS32_LONGJUMP7
)))
5077 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
5078 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5080 /* This is a final link. */
5085 if (r_symndx
< symtab_hdr
->sh_info
)
5088 sym
= local_syms
+ r_symndx
;
5089 sec
= local_sections
[r_symndx
];
5091 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
5092 addend
= rel
->r_addend
;
5094 /* keep symbol location for static TLS_IE GOT entry */
5095 relocation_sym
= relocation
;
5096 if (bfd_link_relocatable (info
))
5098 /* This is a relocatable link. We don't have to change
5099 anything, unless the reloc is against a section symbol,
5100 in which case we have to adjust according to where the
5101 section symbol winds up in the output section. */
5102 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
5103 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
5110 /* External symbol. */
5111 if (bfd_link_relocatable (info
))
5113 bfd_boolean warned
, ignored
, unresolved_reloc
;
5114 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
5116 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
5117 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
5118 relocation
, unresolved_reloc
, warned
,
5121 /* keep symbol location for static TLS_IE GOT entry */
5122 relocation_sym
= relocation
;
5124 /* la $fp, _FP_BASE_ is per-function (region).
5125 Handle it specially. */
5126 switch ((int) r_type
)
5128 case R_NDS32_HI20_RELA
:
5129 case R_NDS32_LO12S0_RELA
:
5130 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5133 if (!bfd_link_pie (info
))
5136 ("%pB: warning: _FP_BASE_ setting insns relaxation failed.",
5139 relocation
= fpbase_addr
;
5142 case R_NDS32_SDA19S0_RELA
:
5143 case R_NDS32_SDA15S0_RELA
:
5144 case R_NDS32_20_RELA
:
5145 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5148 relocation
= fpbase_addr
;
5154 /* Sanity check the address. */
5155 if (offset
> high_address
)
5157 r
= bfd_reloc_outofrange
;
5161 if (r_type
>= R_NDS32_RELAX_ENTRY
)
5164 switch ((int) r_type
)
5166 case R_NDS32_GOTOFF
:
5167 /* Relocation is relative to the start of the global offset
5168 table (for ld24 rx, #uimm24), e.g. access at label+addend
5170 ld24 rx. #label@GOTOFF + addend
5172 case R_NDS32_GOTOFF_HI20
:
5173 case R_NDS32_GOTOFF_LO12
:
5174 case R_NDS32_GOTOFF_LO15
:
5175 case R_NDS32_GOTOFF_LO19
:
5176 BFD_ASSERT (sgot
!= NULL
);
5178 relocation
-= elf_gp (output_bfd
);
5181 case R_NDS32_9_PLTREL
:
5182 case R_NDS32_25_PLTREL
:
5183 /* Relocation is to the entry for this symbol in the
5184 procedure linkage table. */
5186 /* The native assembler will generate a 25_PLTREL reloc
5187 for a local symbol if you assemble a call from one
5188 section to another when using -K pic. */
5192 if (h
->forced_local
)
5195 /* We didn't make a PLT entry for this symbol. This
5196 happens when statically linking PIC code, or when
5197 using -Bsymbolic. */
5198 if (h
->plt
.offset
== (bfd_vma
) - 1)
5201 relocation
= (splt
->output_section
->vma
5202 + splt
->output_offset
+ h
->plt
.offset
);
5205 case R_NDS32_PLT_GOTREL_HI20
:
5206 case R_NDS32_PLT_GOTREL_LO12
:
5207 case R_NDS32_PLT_GOTREL_LO15
:
5208 case R_NDS32_PLT_GOTREL_LO19
:
5209 case R_NDS32_PLT_GOTREL_LO20
:
5212 || h
->plt
.offset
== (bfd_vma
) -1
5213 || (bfd_link_pie (info
) && h
->def_regular
))
5215 /* Maybe we should find better checking to optimize
5216 PIE PLT relocations. */
5217 /* We didn't make a PLT entry for this symbol. This
5218 happens when statically linking PIC code, or when
5219 using -Bsymbolic. */
5221 h
->plt
.offset
= (bfd_vma
) -1; /* Cancel PLT trampoline. */
5222 relocation
-= elf_gp (output_bfd
);
5226 relocation
= (splt
->output_section
->vma
5227 + splt
->output_offset
+ h
->plt
.offset
);
5229 relocation
-= elf_gp (output_bfd
);
5232 case R_NDS32_PLTREL_HI20
:
5233 case R_NDS32_PLTREL_LO12
:
5235 /* Relocation is to the entry for this symbol in the
5236 procedure linkage table. */
5238 /* The native assembler will generate a 25_PLTREL reloc
5239 for a local symbol if you assemble a call from one
5240 section to another when using -K pic. */
5244 if (h
->forced_local
)
5247 if (h
->plt
.offset
== (bfd_vma
) - 1)
5248 /* We didn't make a PLT entry for this symbol. This
5249 happens when statically linking PIC code, or when
5250 using -Bsymbolic. */
5256 relocation
= (splt
->output_section
->vma
5257 + splt
->output_offset
5258 + h
->plt
.offset
+ 4)
5259 - (input_section
->output_section
->vma
5260 + input_section
->output_offset
5265 case R_NDS32_GOTPC20
:
5266 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5267 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
5268 relocation
= elf_gp (output_bfd
);
5271 case R_NDS32_GOTPC_HI20
:
5272 case R_NDS32_GOTPC_LO12
:
5273 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5275 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
5276 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
5279 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
5280 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */
5281 relocation
= elf_gp (output_bfd
);
5282 relocation
-= (input_section
->output_section
->vma
5283 + input_section
->output_offset
+ rel
->r_offset
);
5288 case R_NDS32_GOT_HI20
:
5289 case R_NDS32_GOT_LO12
:
5290 case R_NDS32_GOT_LO15
:
5291 case R_NDS32_GOT_LO19
:
5292 /* Relocation is to the entry for this symbol in the global
5294 BFD_ASSERT (sgot
!= NULL
);
5298 /* External symbol */
5301 off
= h
->got
.offset
;
5302 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5303 dyn
= htab
->root
.dynamic_sections_created
;
5304 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
5305 bfd_link_pic (info
),
5307 || (bfd_link_pic (info
)
5310 || h
->forced_local
) && h
->def_regular
))
5312 /* This is actually a static link, or it is a
5313 -Bsymbolic link and the symbol is defined
5314 locally, or the symbol was forced to be local
5315 because of a version file. We must initialize
5316 this entry in the global offset table. Since the
5317 offset must always be a multiple of 4, we use the
5318 least significant bit to record whether we have
5319 initialized it already.
5321 When doing a dynamic link, we create a .rela.got
5322 relocation entry to initialize the value. This
5323 is done in the finish_dynamic_symbol routine. */
5324 if ((off
& 1) != 0) /* clear LSB */
5328 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5332 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5333 - elf_gp (output_bfd
);
5340 BFD_ASSERT (local_got_offsets
!= NULL
5341 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5343 off
= local_got_offsets
[r_symndx
];
5345 /* The offset must always be a multiple of 4. We use
5346 the least significant bit to record whether we have
5347 already processed this entry. */
5348 if ((off
& 1) != 0) /* clear LSB */
5352 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5354 if (bfd_link_pic (info
))
5357 Elf_Internal_Rela outrel
;
5359 /* We need to generate a R_NDS32_RELATIVE reloc
5360 for the dynamic linker. */
5361 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5362 BFD_ASSERT (srelgot
!= NULL
);
5364 outrel
.r_offset
= (elf_gp (output_bfd
)
5365 + sgot
->output_offset
+ off
);
5366 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5367 outrel
.r_addend
= relocation
;
5368 loc
= srelgot
->contents
;
5370 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5371 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5372 ++srelgot
->reloc_count
;
5374 local_got_offsets
[r_symndx
] |= 1;
5376 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5377 - elf_gp (output_bfd
);
5382 case R_NDS32_16_RELA
:
5383 case R_NDS32_20_RELA
:
5384 case R_NDS32_5_RELA
:
5385 case R_NDS32_32_RELA
:
5386 case R_NDS32_9_PCREL_RELA
:
5387 case R_NDS32_WORD_9_PCREL_RELA
:
5388 case R_NDS32_10_UPCREL_RELA
:
5389 case R_NDS32_15_PCREL_RELA
:
5390 case R_NDS32_17_PCREL_RELA
:
5391 case R_NDS32_25_PCREL_RELA
:
5392 case R_NDS32_HI20_RELA
:
5393 case R_NDS32_LO12S3_RELA
:
5394 case R_NDS32_LO12S2_RELA
:
5395 case R_NDS32_LO12S2_DP_RELA
:
5396 case R_NDS32_LO12S2_SP_RELA
:
5397 case R_NDS32_LO12S1_RELA
:
5398 case R_NDS32_LO12S0_RELA
:
5399 case R_NDS32_LO12S0_ORI_RELA
:
5400 if (bfd_link_pic (info
) && r_symndx
!= 0
5401 && (input_section
->flags
& SEC_ALLOC
) != 0
5402 && (eliminate_gc_relocs
== 0
5403 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
5404 && ((r_type
!= R_NDS32_9_PCREL_RELA
5405 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
5406 && r_type
!= R_NDS32_10_UPCREL_RELA
5407 && r_type
!= R_NDS32_15_PCREL_RELA
5408 && r_type
!= R_NDS32_17_PCREL_RELA
5409 && r_type
!= R_NDS32_25_PCREL_RELA
5410 && !(r_type
== R_NDS32_32_RELA
5411 && strcmp (input_section
->name
, ".eh_frame") == 0))
5412 || (h
!= NULL
&& h
->dynindx
!= -1
5413 && (!info
->symbolic
|| !h
->def_regular
))))
5415 Elf_Internal_Rela outrel
;
5416 bfd_boolean skip
, relocate
;
5419 /* When generating a shared object, these relocations
5420 are copied into the output file to be resolved at run
5427 name
= bfd_elf_string_from_elf_section
5428 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
5429 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
5433 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
5434 && strcmp (bfd_section_name (input_section
),
5437 sreloc
= bfd_get_section_by_name (dynobj
, name
);
5438 BFD_ASSERT (sreloc
!= NULL
);
5444 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
5448 if (outrel
.r_offset
== (bfd_vma
) - 1)
5450 else if (outrel
.r_offset
== (bfd_vma
) - 2)
5451 skip
= TRUE
, relocate
= TRUE
;
5452 outrel
.r_offset
+= (input_section
->output_section
->vma
5453 + input_section
->output_offset
);
5456 memset (&outrel
, 0, sizeof outrel
);
5457 else if (r_type
== R_NDS32_17_PCREL_RELA
5458 || r_type
== R_NDS32_15_PCREL_RELA
5459 || r_type
== R_NDS32_25_PCREL_RELA
)
5461 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
5462 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5463 outrel
.r_addend
= rel
->r_addend
;
5467 /* h->dynindx may be -1 if this symbol was marked to
5470 || ((info
->symbolic
|| h
->dynindx
== -1)
5472 || (bfd_link_pie (info
) && h
->def_regular
))
5475 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5476 outrel
.r_addend
= relocation
+ rel
->r_addend
;
5480 h
->plt
.offset
= (bfd_vma
) -1; /* cancel PLT trampoline. */
5482 BFD_ASSERT (sgot
!= NULL
);
5483 /* If we did not allocate got entry for the symbol,
5484 we can not fill the nonexistent got entry. */
5485 if (h
->got
.offset
!= (bfd_vma
) -1
5486 && (h
->got
.offset
& 1) == 0)
5488 bfd_put_32 (output_bfd
, outrel
.r_addend
,
5489 sgot
->contents
+ h
->got
.offset
);
5495 if (h
->dynindx
== -1)
5498 (_("%pB: relocation %s against `%s' can not be used when "
5499 "making a shared object; recompile with -fPIC"),
5500 input_bfd
, nds32_elf_howto_table
[r_type
].name
, h
->root
.root
.string
);
5501 bfd_set_error (bfd_error_bad_value
);
5505 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5506 outrel
.r_addend
= rel
->r_addend
;
5510 loc
= sreloc
->contents
;
5511 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
5512 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5513 ++sreloc
->reloc_count
;
5515 /* If this reloc is against an external symbol, we do
5516 not want to fiddle with the addend. Otherwise, we
5517 need to include the symbol value so that it becomes
5518 an addend for the dynamic reloc. */
5524 case R_NDS32_25_ABS_RELA
:
5525 if (bfd_link_pic (info
))
5528 (_("%pB: warning: %s unsupported in shared mode"),
5529 input_bfd
, "R_NDS32_25_ABS_RELA");
5534 case R_NDS32_9_PCREL
:
5535 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5537 sec
, relocation
, addend
);
5541 /* We allow an arbitrary number of HI20 relocs before the
5542 LO12 reloc. This permits gcc to emit the HI and LO relocs
5544 for (lorel
= rel
+ 1;
5546 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5549 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5550 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5551 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5552 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5554 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5555 contents
, relocation
+ addend
);
5559 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5560 contents
, offset
, relocation
,
5564 case R_NDS32_GOT17S2_RELA
:
5565 case R_NDS32_GOT15S2_RELA
:
5566 BFD_ASSERT (sgot
!= NULL
);
5572 off
= h
->got
.offset
;
5573 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5575 dyn
= htab
->root
.dynamic_sections_created
;
5576 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5577 (dyn
, bfd_link_pic (info
), h
)
5578 || (bfd_link_pic (info
)
5584 /* This is actually a static link, or it is a
5585 -Bsymbolic link and the symbol is defined
5586 locally, or the symbol was forced to be local
5587 because of a version file. We must initialize
5588 this entry in the global offset table. Since the
5589 offset must always be a multiple of 4, we use the
5590 least significant bit to record whether we have
5591 initialized it already.
5593 When doing a dynamic link, we create a .rela.got
5594 relocation entry to initialize the value. This
5595 is done in the finish_dynamic_symbol routine. */
5600 bfd_put_32 (output_bfd
, relocation
,
5601 sgot
->contents
+ off
);
5610 BFD_ASSERT (local_got_offsets
!= NULL
5611 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5613 off
= local_got_offsets
[r_symndx
];
5615 /* The offset must always be a multiple of 4. We use
5616 the least significant bit to record whether we have
5617 already processed this entry. */
5622 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5624 if (bfd_link_pic (info
))
5627 Elf_Internal_Rela outrel
;
5629 /* We need to generate a R_NDS32_RELATIVE reloc
5630 for the dynamic linker. */
5631 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5632 BFD_ASSERT (srelgot
!= NULL
);
5634 outrel
.r_offset
= (elf_gp (output_bfd
)
5635 + sgot
->output_offset
+ off
);
5636 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5637 outrel
.r_addend
= relocation
;
5638 loc
= srelgot
->contents
;
5640 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5641 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5642 ++srelgot
->reloc_count
;
5644 local_got_offsets
[r_symndx
] |= 1;
5647 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5648 - elf_gp (output_bfd
);
5650 if (relocation
& align
)
5652 /* Incorrect alignment. */
5654 (_("%pB: warning: unaligned access to GOT entry"), input_bfd
);
5656 r
= bfd_reloc_dangerous
;
5661 case R_NDS32_SDA16S3_RELA
:
5662 case R_NDS32_SDA15S3_RELA
:
5663 case R_NDS32_SDA15S3
:
5667 case R_NDS32_SDA17S2_RELA
:
5668 case R_NDS32_SDA15S2_RELA
:
5669 case R_NDS32_SDA12S2_SP_RELA
:
5670 case R_NDS32_SDA12S2_DP_RELA
:
5671 case R_NDS32_SDA15S2
:
5672 case R_NDS32_SDA_FP7U2_RELA
:
5676 case R_NDS32_SDA18S1_RELA
:
5677 case R_NDS32_SDA15S1_RELA
:
5678 case R_NDS32_SDA15S1
:
5682 case R_NDS32_SDA19S0_RELA
:
5683 case R_NDS32_SDA15S0_RELA
:
5684 case R_NDS32_SDA15S0
:
5687 BFD_ASSERT (sec
!= NULL
);
5689 /* If the symbol is in the abs section, the out_bfd will be null.
5690 This happens when the relocation has a symbol@GOTOFF. */
5691 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5692 if (r
!= bfd_reloc_ok
)
5695 (_("%pB: warning: relocate SDA_BASE failed"), input_bfd
);
5700 /* At this point `relocation' contains the object's
5702 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5704 relocation
-= fpbase_addr
;
5708 /* Now it contains the offset from _SDA_BASE_. */
5710 /* Make sure alignment is correct. */
5712 if (relocation
& align
)
5714 /* Incorrect alignment. */
5716 /* xgettext:c-format */
5717 (_("%pB(%pA): warning: unaligned small data access"
5719 input_bfd
, input_section
, r_type
);
5725 case R_NDS32_17IFC_PCREL_RELA
:
5726 case R_NDS32_10IFCU_PCREL_RELA
:
5730 case R_NDS32_TLS_LE_HI20
:
5731 case R_NDS32_TLS_LE_LO12
:
5732 case R_NDS32_TLS_LE_20
:
5733 case R_NDS32_TLS_LE_15S0
:
5734 case R_NDS32_TLS_LE_15S1
:
5735 case R_NDS32_TLS_LE_15S2
:
5736 /* We do not have garbage collection for got entries.
5737 Therefore, IE to LE may have one empty entry, and DESC to
5739 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5740 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5743 case R_NDS32_TLS_IE_HI20
:
5744 case R_NDS32_TLS_IE_LO12S2
:
5745 case R_NDS32_TLS_DESC_HI20
:
5746 case R_NDS32_TLS_DESC_LO12
:
5747 case R_NDS32_TLS_IE_LO12
:
5748 case R_NDS32_TLS_IEGP_HI20
:
5749 case R_NDS32_TLS_IEGP_LO12
:
5750 case R_NDS32_TLS_IEGP_LO12S2
:
5752 /* Relocation is to the entry for this symbol in the global
5754 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
5756 Elf_Internal_Rela outrel
;
5760 eff_tls_type
= org_tls_type
= get_tls_type (r_type
, h
);
5762 BFD_ASSERT (sgot
!= NULL
);
5767 off
= h
->got
.offset
;
5768 BFD_ASSERT (off
!= (bfd_vma
) -1);
5769 dyn
= htab
->root
.dynamic_sections_created
;
5770 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5771 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5772 && (!bfd_link_pic (info
)
5773 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5778 BFD_ASSERT (local_got_offsets
!= NULL
5779 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5780 off
= local_got_offsets
[r_symndx
];
5781 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5784 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5786 if (1 < ones32 (tls_type
))
5788 eff_tls_type
= 1 << (fls (tls_type
) - 1);
5789 /* TLS model shall be handled in nds32_elf_unify_tls_model (). */
5791 /* TLS model X -> LE is not implement yet!
5793 if (eff_tls_type
== GOT_TLS_LE
)
5795 eff_tls_type
= 1 << (fls (tls_type
^ eff_tls_type
) - 1);
5799 /* The offset must always be a multiple of 4. We use
5800 the least significant bit to record whether we have
5801 already processed this entry. */
5802 bfd_boolean need_relocs
= FALSE
;
5803 srelgot
= ehtab
->srelgot
;
5804 if ((bfd_link_pic (info
) || indx
!= 0)
5805 && (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5806 || h
->root
.type
!= bfd_link_hash_undefweak
))
5809 BFD_ASSERT (srelgot
!= NULL
);
5817 if (eff_tls_type
& GOT_TLS_DESC
)
5819 relocation
-= elf_gp (output_bfd
);
5820 if ((R_NDS32_TLS_DESC_HI20
== r_type
) && (!need_relocs
))
5822 /* TLS model shall be converted. */
5826 else if (eff_tls_type
& GOT_TLS_IEGP
)
5828 relocation
-= elf_gp (output_bfd
);
5833 if ((eff_tls_type
& GOT_TLS_LE
) && (tls_type
^ eff_tls_type
))
5835 /* TLS model workaround shall be applied. */
5838 else if (eff_tls_type
& (GOT_TLS_IE
| GOT_TLS_IEGP
))
5840 if (eff_tls_type
& GOT_TLS_IEGP
)
5841 relocation
-= elf_gp(output_bfd
);
5846 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5848 outrel
.r_addend
= 0;
5849 outrel
.r_offset
= (sgot
->output_section
->vma
5850 + sgot
->output_offset
+ off
);
5851 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_TPOFF
);
5853 elf32_nds32_add_dynreloc (output_bfd
, info
, srelgot
,
5858 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5859 sgot
->contents
+ off
);
5862 else if (eff_tls_type
& GOT_TLS_DESC
)
5864 relocation
-= elf_gp (output_bfd
);
5868 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5870 outrel
.r_addend
= 0;
5871 outrel
.r_offset
= (sgot
->output_section
->vma
5872 + sgot
->output_offset
+ off
);
5873 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_DESC
);
5875 if (htab
->tls_desc_trampoline
)
5878 srelplt
= ehtab
->srelplt
;
5879 loc
= srelplt
->contents
;
5880 loc
+= htab
->next_tls_desc_index
++ * sizeof (Elf32_External_Rela
);
5881 BFD_ASSERT (loc
+ sizeof (Elf32_External_Rela
)
5882 <= srelplt
->contents
+ srelplt
->size
);
5884 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5888 loc
= srelgot
->contents
;
5889 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5890 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5891 ++srelgot
->reloc_count
;
5897 bfd_put_32 (output_bfd
, 0xdeadbeef,
5898 sgot
->contents
+ off
);
5899 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5900 sgot
->contents
+ off
+ 4);
5901 patch_tls_desc_to_ie (contents
, rel
, input_bfd
);
5907 /* TLS model workaround shall be applied. */
5914 local_got_offsets
[r_symndx
] |= 1;
5918 /* DON'T fall through. */
5921 /* OLD_NDS32_RELOC. */
5923 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5924 contents
, offset
, relocation
, addend
);
5928 switch ((int) r_type
)
5930 case R_NDS32_20_RELA
:
5931 case R_NDS32_5_RELA
:
5932 case R_NDS32_9_PCREL_RELA
:
5933 case R_NDS32_WORD_9_PCREL_RELA
:
5934 case R_NDS32_10_UPCREL_RELA
:
5935 case R_NDS32_15_PCREL_RELA
:
5936 case R_NDS32_17_PCREL_RELA
:
5937 case R_NDS32_25_PCREL_RELA
:
5938 case R_NDS32_25_ABS_RELA
:
5939 case R_NDS32_HI20_RELA
:
5940 case R_NDS32_LO12S3_RELA
:
5941 case R_NDS32_LO12S2_RELA
:
5942 case R_NDS32_LO12S2_DP_RELA
:
5943 case R_NDS32_LO12S2_SP_RELA
:
5944 case R_NDS32_LO12S1_RELA
:
5945 case R_NDS32_LO12S0_RELA
:
5946 case R_NDS32_LO12S0_ORI_RELA
:
5947 case R_NDS32_SDA16S3_RELA
:
5948 case R_NDS32_SDA17S2_RELA
:
5949 case R_NDS32_SDA18S1_RELA
:
5950 case R_NDS32_SDA19S0_RELA
:
5951 case R_NDS32_SDA15S3_RELA
:
5952 case R_NDS32_SDA15S2_RELA
:
5953 case R_NDS32_SDA12S2_DP_RELA
:
5954 case R_NDS32_SDA12S2_SP_RELA
:
5955 case R_NDS32_SDA15S1_RELA
:
5956 case R_NDS32_SDA15S0_RELA
:
5957 case R_NDS32_SDA_FP7U2_RELA
:
5958 case R_NDS32_9_PLTREL
:
5959 case R_NDS32_25_PLTREL
:
5961 case R_NDS32_GOT_HI20
:
5962 case R_NDS32_GOT_LO12
:
5963 case R_NDS32_GOT_LO15
:
5964 case R_NDS32_GOT_LO19
:
5965 case R_NDS32_GOT15S2_RELA
:
5966 case R_NDS32_GOT17S2_RELA
:
5967 case R_NDS32_GOTPC20
:
5968 case R_NDS32_GOTPC_HI20
:
5969 case R_NDS32_GOTPC_LO12
:
5970 case R_NDS32_GOTOFF
:
5971 case R_NDS32_GOTOFF_HI20
:
5972 case R_NDS32_GOTOFF_LO12
:
5973 case R_NDS32_GOTOFF_LO15
:
5974 case R_NDS32_GOTOFF_LO19
:
5975 case R_NDS32_PLTREL_HI20
:
5976 case R_NDS32_PLTREL_LO12
:
5977 case R_NDS32_PLT_GOTREL_HI20
:
5978 case R_NDS32_PLT_GOTREL_LO12
:
5979 case R_NDS32_PLT_GOTREL_LO15
:
5980 case R_NDS32_PLT_GOTREL_LO19
:
5981 case R_NDS32_PLT_GOTREL_LO20
:
5982 case R_NDS32_17IFC_PCREL_RELA
:
5983 case R_NDS32_10IFCU_PCREL_RELA
:
5984 case R_NDS32_TLS_LE_HI20
:
5985 case R_NDS32_TLS_LE_LO12
:
5986 case R_NDS32_TLS_IE_HI20
:
5987 case R_NDS32_TLS_IE_LO12S2
:
5988 case R_NDS32_TLS_LE_20
:
5989 case R_NDS32_TLS_LE_15S0
:
5990 case R_NDS32_TLS_LE_15S1
:
5991 case R_NDS32_TLS_LE_15S2
:
5992 case R_NDS32_TLS_DESC_HI20
:
5993 case R_NDS32_TLS_DESC_LO12
:
5994 case R_NDS32_TLS_IE_LO12
:
5995 case R_NDS32_TLS_IEGP_HI20
:
5996 case R_NDS32_TLS_IEGP_LO12
:
5997 case R_NDS32_TLS_IEGP_LO12S2
:
5998 /* Instruction related relocs must handle endian properly. */
5999 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
6000 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
6001 input_section
, contents
,
6002 rel
->r_offset
, relocation
,
6007 /* All other relocs can use default handler. */
6008 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
6009 contents
, rel
->r_offset
,
6010 relocation
, rel
->r_addend
);
6016 if (r
!= bfd_reloc_ok
)
6018 /* FIXME: This should be generic enough to go in a utility. */
6022 name
= h
->root
.root
.string
;
6025 name
= bfd_elf_string_from_elf_section
6026 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
6027 if (name
== NULL
|| *name
== '\0')
6028 name
= bfd_section_name (sec
);
6036 case bfd_reloc_overflow
:
6037 (*info
->callbacks
->reloc_overflow
)
6038 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
6039 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
6042 case bfd_reloc_undefined
:
6043 (*info
->callbacks
->undefined_symbol
)
6044 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
6047 case bfd_reloc_outofrange
:
6048 errmsg
= _("internal error: out of range error");
6051 case bfd_reloc_notsupported
:
6052 errmsg
= _("internal error: unsupported relocation error");
6055 case bfd_reloc_dangerous
:
6056 errmsg
= _("internal error: dangerous error");
6060 errmsg
= _("internal error: unknown error");
6064 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
6065 input_section
, offset
);
6071 /* Resotre header size to avoid overflow load. */
6072 if (elf_nds32_tdata (input_bfd
)->hdr_size
!= 0)
6073 symtab_hdr
->sh_size
= elf_nds32_tdata (input_bfd
)->hdr_size
;
6078 /* Finish up dynamic symbol handling. We set the contents of various
6079 dynamic sections here. */
6082 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
6083 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
6085 struct elf_link_hash_table
*ehtab
;
6086 struct elf_nds32_link_hash_entry
*hent
;
6089 ehtab
= elf_hash_table (info
);
6090 hent
= (struct elf_nds32_link_hash_entry
*) h
;
6092 if (h
->plt
.offset
!= (bfd_vma
) - 1)
6100 bfd_vma local_plt_offset
;
6101 Elf_Internal_Rela rela
;
6103 /* This symbol has an entry in the procedure linkage table. Set
6106 BFD_ASSERT (h
->dynindx
!= -1);
6109 sgot
= ehtab
->sgotplt
;
6110 srela
= ehtab
->srelplt
;
6111 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
6113 /* Get the index in the procedure linkage table which
6114 corresponds to this symbol. This is the index of this symbol
6115 in all the symbols for which we are making plt entries. The
6116 first entry in the procedure linkage table is reserved. */
6117 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
6119 /* Get the offset into the .got table of the entry that
6120 corresponds to this function. Each .got entry is 4 bytes.
6121 The first three are reserved. */
6122 got_offset
= (plt_index
+ 3) * 4;
6124 /* Fill in the entry in the procedure linkage table. */
6125 if (!bfd_link_pic (info
))
6129 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
6130 + sgot
->output_offset
+ got_offset
) >> 12)
6132 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6134 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
6135 + sgot
->output_offset
+ got_offset
) & 0x0fff)
6137 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6139 insn
= PLT_ENTRY_WORD2
;
6140 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6142 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
6143 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6145 insn
= PLT_ENTRY_WORD4
6146 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
6147 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6148 local_plt_offset
= 12;
6152 /* sda_base must be set at this time. */
6156 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
6157 - elf_gp (output_bfd
);
6158 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
6159 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6161 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
6162 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6164 insn
= PLT_PIC_ENTRY_WORD2
;
6165 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6167 insn
= PLT_PIC_ENTRY_WORD3
;
6168 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6170 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
6171 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6173 insn
= PLT_PIC_ENTRY_WORD5
6174 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
6175 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
6177 local_plt_offset
= 16;
6180 /* Fill in the entry in the global offset table,
6181 so it will fall through to the next instruction for the first time. */
6182 bfd_put_32 (output_bfd
,
6183 (splt
->output_section
->vma
+ splt
->output_offset
6184 + h
->plt
.offset
+ local_plt_offset
),
6185 sgot
->contents
+ got_offset
);
6187 /* Fill in the entry in the .rela.plt section. */
6188 rela
.r_offset
= (sgot
->output_section
->vma
6189 + sgot
->output_offset
+ got_offset
);
6190 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
6192 loc
= srela
->contents
;
6193 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
6194 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6196 if (!h
->def_regular
)
6198 /* Mark the symbol as undefined, rather than as defined in
6199 the .plt section. Leave the value alone. */
6200 sym
->st_shndx
= SHN_UNDEF
;
6201 if (!h
->ref_regular_nonweak
)
6206 if (h
->got
.offset
!= (bfd_vma
) - 1
6207 && hent
->tls_type
== GOT_NORMAL
)
6211 Elf_Internal_Rela rela
;
6213 /* This symbol has an entry in the global offset table.
6217 srelagot
= ehtab
->srelgot
;
6218 BFD_ASSERT (sgot
!= NULL
&& srelagot
!= NULL
);
6220 rela
.r_offset
= (sgot
->output_section
->vma
6221 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
6223 /* If this is a -Bsymbolic link, and the symbol is defined
6224 locally, we just want to emit a RELATIVE reloc. Likewise if
6225 the symbol was forced to be local because of a version file.
6226 The entry in the global offset table will already have been
6227 initialized in the relocate_section function. */
6228 if ((bfd_link_pic (info
)
6229 && (info
->symbolic
|| h
->dynindx
== -1 || h
->forced_local
)
6231 || (bfd_link_pie (info
) && h
->def_regular
))
6233 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
6234 rela
.r_addend
= (h
->root
.u
.def
.value
6235 + h
->root
.u
.def
.section
->output_section
->vma
6236 + h
->root
.u
.def
.section
->output_offset
);
6238 if ((h
->got
.offset
& 1) == 0)
6240 bfd_put_32 (output_bfd
, rela
.r_addend
,
6241 sgot
->contents
+ h
->got
.offset
);
6246 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
6247 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
6248 sgot
->contents
+ h
->got
.offset
);
6249 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
6253 loc
= srelagot
->contents
;
6254 loc
+= srelagot
->reloc_count
* sizeof (Elf32_External_Rela
);
6255 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6256 ++srelagot
->reloc_count
;
6257 BFD_ASSERT (loc
< (srelagot
->contents
+ srelagot
->size
));
6263 Elf_Internal_Rela rela
;
6265 /* This symbols needs a copy reloc. Set it up. */
6267 BFD_ASSERT (h
->dynindx
!= -1
6268 && (h
->root
.type
== bfd_link_hash_defined
6269 || h
->root
.type
== bfd_link_hash_defweak
));
6271 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
6272 BFD_ASSERT (s
!= NULL
);
6274 rela
.r_offset
= (h
->root
.u
.def
.value
6275 + h
->root
.u
.def
.section
->output_section
->vma
6276 + h
->root
.u
.def
.section
->output_offset
);
6277 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
6280 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
6281 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6285 /* Mark some specially defined symbols as absolute. */
6286 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
6287 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
6288 sym
->st_shndx
= SHN_ABS
;
6294 /* Finish up the dynamic sections. */
6297 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6302 struct elf_link_hash_table
*ehtab
;
6303 struct elf_nds32_link_hash_table
*htab
;
6305 ehtab
= elf_hash_table (info
);
6306 htab
= nds32_elf_hash_table (info
);
6310 dynobj
= elf_hash_table (info
)->dynobj
;
6312 sgotplt
= ehtab
->sgotplt
;
6313 /* A broken linker script might have discarded the dynamic sections.
6314 Catch this here so that we do not seg-fault later on. */
6315 if (sgotplt
!= NULL
&& bfd_is_abs_section (sgotplt
->output_section
))
6317 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
6319 if (elf_hash_table (info
)->dynamic_sections_created
)
6322 Elf32_External_Dyn
*dyncon
, *dynconend
;
6324 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6326 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6327 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6329 for (; dyncon
< dynconend
; dyncon
++)
6331 Elf_Internal_Dyn dyn
;
6334 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
6342 /* name = ".got"; */
6343 s
= ehtab
->sgot
->output_section
;
6346 s
= ehtab
->srelplt
->output_section
;
6348 BFD_ASSERT (s
!= NULL
);
6349 dyn
.d_un
.d_ptr
= s
->vma
;
6350 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6354 s
= ehtab
->srelplt
->output_section
;
6355 BFD_ASSERT (s
!= NULL
);
6356 dyn
.d_un
.d_val
= s
->size
;
6357 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6361 /* My reading of the SVR4 ABI indicates that the
6362 procedure linkage table relocs (DT_JMPREL) should be
6363 included in the overall relocs (DT_RELA). This is
6364 what Solaris does. However, UnixWare can not handle
6365 that case. Therefore, we override the DT_RELASZ entry
6366 here to make it not include the JMPREL relocs. Since
6367 the linker script arranges for .rela.plt to follow all
6368 other relocation sections, we don't have to worry
6369 about changing the DT_RELA entry. */
6370 if (ehtab
->srelplt
!= NULL
)
6372 s
= ehtab
->srelplt
->output_section
;
6373 dyn
.d_un
.d_val
-= s
->size
;
6375 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6378 case DT_TLSDESC_PLT
:
6379 s
= htab
->root
.splt
;
6380 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6381 + htab
->root
.tlsdesc_plt
);
6382 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6385 case DT_TLSDESC_GOT
:
6386 s
= htab
->root
.sgot
;
6387 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6388 + htab
->root
.tlsdesc_got
);
6389 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6394 /* Fill in the first entry in the procedure linkage table. */
6396 if (splt
&& splt
->size
> 0)
6398 if (bfd_link_pic (info
))
6403 offset
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4
6404 - elf_gp (output_bfd
);
6405 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
6406 bfd_putb32 (insn
, splt
->contents
);
6408 /* here has a typo? */
6409 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
6410 bfd_putb32 (insn
, splt
->contents
+ 4);
6412 insn
= PLT0_PIC_ENTRY_WORD2
;
6413 bfd_putb32 (insn
, splt
->contents
+ 8);
6415 insn
= PLT0_PIC_ENTRY_WORD3
;
6416 bfd_putb32 (insn
, splt
->contents
+ 12);
6418 insn
= PLT0_PIC_ENTRY_WORD4
;
6419 bfd_putb32 (insn
, splt
->contents
+ 16);
6421 insn
= PLT0_PIC_ENTRY_WORD5
;
6422 bfd_putb32 (insn
, splt
->contents
+ 20);
6429 /* addr = .got + 4 */
6430 addr
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4;
6431 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
6432 bfd_putb32 (insn
, splt
->contents
);
6434 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
6435 bfd_putb32 (insn
, splt
->contents
+ 4);
6437 insn
= PLT0_ENTRY_WORD2
;
6438 bfd_putb32 (insn
, splt
->contents
+ 8);
6440 insn
= PLT0_ENTRY_WORD3
;
6441 bfd_putb32 (insn
, splt
->contents
+ 12);
6443 insn
= PLT0_ENTRY_WORD4
;
6444 bfd_putb32 (insn
, splt
->contents
+ 16);
6447 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
6451 if (htab
->root
.tlsdesc_plt
)
6453 /* Calculate addresses. */
6454 asection
*sgot
= sgot
= ehtab
->sgot
;
6455 bfd_vma pltgot
= sgotplt
->output_section
->vma
6456 + sgotplt
->output_offset
;
6457 bfd_vma tlsdesc_got
= sgot
->output_section
->vma
+ sgot
->output_offset
6458 + htab
->root
.tlsdesc_got
;
6460 /* Get GP offset. */
6461 pltgot
-= elf_gp (output_bfd
) - 4; /* PLTGOT[1] */
6462 tlsdesc_got
-= elf_gp (output_bfd
);
6464 /* Do relocation. */
6465 dl_tlsdesc_lazy_trampoline
[0] += ((1 << 20) - 1) & (tlsdesc_got
>> 12);
6466 dl_tlsdesc_lazy_trampoline
[1] += 0xfff & tlsdesc_got
;
6467 dl_tlsdesc_lazy_trampoline
[4] += ((1 << 20) - 1) & (pltgot
>> 12);
6468 dl_tlsdesc_lazy_trampoline
[5] += 0xfff & pltgot
;
6471 nds32_put_trampoline (splt
->contents
+ htab
->root
.tlsdesc_plt
,
6472 dl_tlsdesc_lazy_trampoline
,
6473 ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
));
6477 /* Fill in the first three entries in the global offset table. */
6478 if (sgotplt
&& sgotplt
->size
> 0)
6481 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
6483 bfd_put_32 (output_bfd
,
6484 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
6486 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
6487 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
6489 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
6496 /* Set the right machine number. */
6499 nds32_elf_object_p (bfd
*abfd
)
6501 static unsigned int cur_arch
= 0;
6503 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
6505 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
6506 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
6513 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
6516 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
6518 case E_NDS_ARCH_STAR_V2_0
:
6519 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
6521 case E_NDS_ARCH_STAR_V3_0
:
6522 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
6524 case E_NDS_ARCH_STAR_V3_M
:
6525 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
6532 /* Store the machine number in the flags field. */
6535 nds32_elf_final_write_processing (bfd
*abfd
)
6538 static unsigned int cur_mach
= 0;
6540 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
6542 cur_mach
= bfd_get_mach (abfd
);
6548 /* Only happen when object is empty, since the case is abandon. */
6550 val
|= E_NDS_ABI_AABI
;
6551 val
|= E_NDS32_ELF_VER_1_4
;
6556 case bfd_mach_n1h_v2
:
6557 val
= E_NDS_ARCH_STAR_V2_0
;
6559 case bfd_mach_n1h_v3
:
6560 val
= E_NDS_ARCH_STAR_V3_0
;
6562 case bfd_mach_n1h_v3m
:
6563 val
= E_NDS_ARCH_STAR_V3_M
;
6570 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
6571 elf_elfheader (abfd
)->e_flags
|= val
;
6572 return _bfd_elf_final_write_processing (abfd
);
6575 /* Function to keep NDS32 specific file flags. */
6578 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
6580 BFD_ASSERT (!elf_flags_init (abfd
)
6581 || elf_elfheader (abfd
)->e_flags
== flags
);
6583 elf_elfheader (abfd
)->e_flags
= flags
;
6584 elf_flags_init (abfd
) = TRUE
;
6589 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
6591 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
6593 /* From 0.9 to 1.0. */
6594 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
6596 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6597 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6598 if (arch
== E_NDS_ARCH_STAR_V1_0
)
6605 /* From 1.0 to 2.0. */
6606 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
6608 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
6609 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
6611 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6612 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6617 nds32_check_vec_size (bfd
*ibfd
)
6619 static unsigned int nds32_vec_size
= 0;
6621 asection
*sec_t
= NULL
;
6622 bfd_byte
*contents
= NULL
;
6624 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
6626 if (sec_t
&& sec_t
->size
>= 4)
6628 /* Get vec_size in file. */
6629 unsigned int flag_t
;
6631 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
6632 flag_t
= bfd_get_32 (ibfd
, contents
);
6634 /* The value could only be 4 or 16. */
6636 if (!nds32_vec_size
)
6637 /* Set if not set yet. */
6638 nds32_vec_size
= (flag_t
& 0x3);
6639 else if (nds32_vec_size
!= (flag_t
& 0x3))
6642 /* xgettext:c-format */
6643 (_("%pB: ISR vector size mismatch"
6644 " with previous modules, previous %u-byte, current %u-byte"),
6646 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
6647 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
6651 /* Only keep the first vec_size section. */
6652 sec_t
->flags
|= SEC_EXCLUDE
;
6658 /* Merge backend specific data from an object file to the output
6659 object file when linking. */
6662 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6664 bfd
*obfd
= info
->output_bfd
;
6667 flagword out_16regs
;
6669 flagword out_no_mac
;
6671 flagword out_version
;
6672 flagword in_version
;
6673 flagword out_fpu_config
;
6674 flagword in_fpu_config
;
6676 /* FIXME: What should be checked when linking shared libraries? */
6677 if ((ibfd
->flags
& DYNAMIC
) != 0)
6680 /* TODO: Revise to use object-attributes instead. */
6681 if (!nds32_check_vec_size (ibfd
))
6684 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6685 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6688 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6691 (_("%pB: warning: endian mismatch with previous modules"), ibfd
);
6693 bfd_set_error (bfd_error_bad_value
);
6697 /* -B option in objcopy cannot work as expected. e_flags = 0 shall be
6698 treat as generic one without checking and merging. */
6699 if (elf_elfheader (ibfd
)->e_flags
)
6701 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6702 if (in_version
== E_NDS32_ELF_VER_1_2
)
6705 (_("%pB: warning: older version of object file encountered, "
6706 "please recompile with current tool chain"), ibfd
);
6709 /* We may need to merge V1 and V2 arch object files to V2. */
6710 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6711 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6713 /* Need to convert version. */
6714 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6715 == E_NDS_ARCH_STAR_RESERVED
)
6717 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6719 else if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6720 == E_NDS_ARCH_STAR_V3_M
6721 && (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6722 == E_NDS_ARCH_STAR_V3_0
)
6724 elf_elfheader (ibfd
)->e_flags
=
6725 (elf_elfheader (ibfd
)->e_flags
& (~EF_NDS_ARCH
))
6726 | E_NDS_ARCH_STAR_V3_0
;
6728 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6729 == E_NDS_ARCH_STAR_V0_9
6730 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6731 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6733 elf_elfheader (obfd
)->e_flags
=
6734 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6735 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6739 elf_elfheader (ibfd
)->e_flags
=
6740 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6741 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6745 /* Extract some flags. */
6746 in_flags
= elf_elfheader (ibfd
)->e_flags
6747 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6748 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6750 /* The following flags need special treatment. */
6751 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6752 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6753 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6755 /* Extract some flags. */
6756 out_flags
= elf_elfheader (obfd
)->e_flags
6757 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6758 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6760 /* The following flags need special treatment. */
6761 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6762 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6763 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6764 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6765 if (!elf_flags_init (obfd
))
6767 /* If the input is the default architecture then do not
6768 bother setting the flags for the output architecture,
6769 instead allow future merges to do this. If no future
6770 merges ever set these flags then they will retain their
6771 unitialised values, which surprise surprise, correspond
6772 to the default values. */
6773 if (bfd_get_arch_info (ibfd
)->the_default
)
6776 elf_flags_init (obfd
) = TRUE
;
6777 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6779 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6780 && bfd_get_arch_info (obfd
)->the_default
)
6782 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6783 bfd_get_mach (ibfd
));
6789 /* Check flag compatibility. */
6790 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6793 (_("%pB: error: ABI mismatch with previous modules"), ibfd
);
6794 bfd_set_error (bfd_error_bad_value
);
6798 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6800 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6803 (_("%pB: error: instruction set mismatch with previous modules"),
6806 bfd_set_error (bfd_error_bad_value
);
6811 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6812 and perf ext1 and DIV are mergerd to perf ext1. */
6813 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6815 elf_elfheader (obfd
)->e_flags
=
6816 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6817 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6818 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6819 ? E_NDS32_HAS_EXT_INST
: 0)
6820 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6821 ? E_NDS32_HAS_EXT_INST
: 0)
6822 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6823 | ((in_version
> out_version
) ? out_version
: in_version
);
6827 if (in_version
!= out_version
)
6829 /* xgettext:c-format */
6830 (_("%pB: warning: incompatible elf-versions %s and %s"),
6831 ibfd
, nds32_elfver_strtab
[out_version
],
6832 nds32_elfver_strtab
[in_version
]);
6834 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6835 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6836 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6837 | (in_version
> out_version
? out_version
: in_version
);
6844 /* Display the flags field. */
6847 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6849 FILE *file
= (FILE *) ptr
;
6851 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6853 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6855 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6857 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6861 fprintf (file
, _(": n1 instructions"));
6864 fprintf (file
, _(": n1h instructions"));
6874 nds32_elf_action_discarded (asection
*sec
)
6878 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6881 return _bfd_elf_default_action_discarded (sec
);
6885 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6886 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6887 Elf_Internal_Sym
*sym
)
6890 switch (ELF32_R_TYPE (rel
->r_info
))
6892 case R_NDS32_GNU_VTINHERIT
:
6893 case R_NDS32_GNU_VTENTRY
:
6894 case R_NDS32_RELA_GNU_VTINHERIT
:
6895 case R_NDS32_RELA_GNU_VTENTRY
:
6899 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6902 static enum elf_nds32_tls_type
6903 get_tls_type (enum elf_nds32_reloc_type r_type
,
6904 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
6906 enum elf_nds32_tls_type tls_type
;
6910 case R_NDS32_TLS_LE_HI20
:
6911 case R_NDS32_TLS_LE_LO12
:
6912 tls_type
= GOT_TLS_LE
;
6914 case R_NDS32_TLS_IE_HI20
:
6915 case R_NDS32_TLS_IE_LO12S2
:
6916 case R_NDS32_TLS_IE_LO12
:
6917 tls_type
= GOT_TLS_IE
;
6919 case R_NDS32_TLS_IEGP_HI20
:
6920 case R_NDS32_TLS_IEGP_LO12
:
6921 case R_NDS32_TLS_IEGP_LO12S2
:
6922 tls_type
= GOT_TLS_IEGP
;
6924 case R_NDS32_TLS_DESC_HI20
:
6925 case R_NDS32_TLS_DESC_LO12
:
6926 case R_NDS32_TLS_DESC_ADD
:
6927 case R_NDS32_TLS_DESC_FUNC
:
6928 case R_NDS32_TLS_DESC_CALL
:
6929 tls_type
= GOT_TLS_DESC
;
6932 tls_type
= GOT_NORMAL
;
6939 /* Ensure that we have allocated bookkeeping structures for ABFD's local
6943 elf32_nds32_allocate_local_sym_info (bfd
*abfd
)
6945 if (elf_local_got_refcounts (abfd
) == NULL
)
6947 bfd_size_type num_syms
;
6951 num_syms
= elf_tdata (abfd
)->symtab_hdr
.sh_info
;
6952 /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and
6953 gp_offset. The details can refer to struct elf_nds32_obj_tdata. */
6954 size
= num_syms
* (sizeof (bfd_signed_vma
) + sizeof (char)
6955 + sizeof (bfd_vma
) + sizeof (int)
6956 + sizeof (bfd_boolean
) + sizeof (bfd_vma
));
6957 data
= bfd_zalloc (abfd
, size
);
6961 elf_local_got_refcounts (abfd
) = (bfd_signed_vma
*) data
;
6962 data
+= num_syms
* sizeof (bfd_signed_vma
);
6964 elf32_nds32_local_got_tls_type (abfd
) = (char *) data
;
6965 data
+= num_syms
* sizeof (char);
6967 elf32_nds32_local_tlsdesc_gotent (abfd
) = (bfd_vma
*) data
;
6968 data
+= num_syms
* sizeof (bfd_vma
);
6970 elf32_nds32_local_gp_offset (abfd
) = (int *) data
;
6971 data
+= num_syms
* sizeof (int);
6977 /* Look through the relocs for a section during the first phase.
6978 Since we don't do .gots or .plts, we just need to consider the
6979 virtual table relocs for gc. */
6982 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
6983 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6985 Elf_Internal_Shdr
*symtab_hdr
;
6986 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
6987 const Elf_Internal_Rela
*rel
;
6988 const Elf_Internal_Rela
*rel_end
;
6989 struct elf_link_hash_table
*ehtab
;
6990 struct elf_nds32_link_hash_table
*htab
;
6992 asection
*sreloc
= NULL
;
6994 /* No need for relocation if relocatable already. */
6995 if (bfd_link_relocatable (info
))
6997 elf32_nds32_check_relax_group (abfd
, sec
);
7001 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
7002 sym_hashes
= elf_sym_hashes (abfd
);
7004 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
7005 if (!elf_bad_symtab (abfd
))
7006 sym_hashes_end
-= symtab_hdr
->sh_info
;
7008 ehtab
= elf_hash_table (info
);
7009 htab
= nds32_elf_hash_table (info
);
7010 dynobj
= htab
->root
.dynobj
;
7012 rel_end
= relocs
+ sec
->reloc_count
;
7013 for (rel
= relocs
; rel
< rel_end
; rel
++)
7015 enum elf_nds32_reloc_type r_type
;
7016 struct elf_link_hash_entry
*h
;
7017 unsigned long r_symndx
;
7018 enum elf_nds32_tls_type tls_type
, old_tls_type
;
7020 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7021 r_type
= ELF32_R_TYPE (rel
->r_info
);
7022 if (r_symndx
< symtab_hdr
->sh_info
)
7026 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7027 while (h
->root
.type
== bfd_link_hash_indirect
7028 || h
->root
.type
== bfd_link_hash_warning
)
7029 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7032 /* Create .got section if necessary.
7033 Some relocs require a global offset table. We create
7034 got section here, since these relocation need a got section
7035 and if it is not created yet. */
7036 if (ehtab
->sgot
== NULL
)
7040 case R_NDS32_GOT_HI20
:
7041 case R_NDS32_GOT_LO12
:
7042 case R_NDS32_GOT_LO15
:
7043 case R_NDS32_GOT_LO19
:
7044 case R_NDS32_GOT17S2_RELA
:
7045 case R_NDS32_GOT15S2_RELA
:
7046 case R_NDS32_GOTOFF
:
7047 case R_NDS32_GOTOFF_HI20
:
7048 case R_NDS32_GOTOFF_LO12
:
7049 case R_NDS32_GOTOFF_LO15
:
7050 case R_NDS32_GOTOFF_LO19
:
7051 case R_NDS32_GOTPC20
:
7052 case R_NDS32_GOTPC_HI20
:
7053 case R_NDS32_GOTPC_LO12
:
7055 case R_NDS32_TLS_IE_HI20
:
7056 case R_NDS32_TLS_IE_LO12
:
7057 case R_NDS32_TLS_IE_LO12S2
:
7058 case R_NDS32_TLS_IEGP_HI20
:
7059 case R_NDS32_TLS_IEGP_LO12
:
7060 case R_NDS32_TLS_IEGP_LO12S2
:
7061 case R_NDS32_TLS_DESC_HI20
:
7062 case R_NDS32_TLS_DESC_LO12
:
7064 htab
->root
.dynobj
= dynobj
= abfd
;
7065 if (!create_got_section (dynobj
, info
))
7074 /* Check relocation type. */
7075 switch ((int) r_type
)
7077 case R_NDS32_GOT_HI20
:
7078 case R_NDS32_GOT_LO12
:
7079 case R_NDS32_GOT_LO15
:
7080 case R_NDS32_GOT_LO19
:
7082 case R_NDS32_TLS_LE_HI20
:
7083 case R_NDS32_TLS_LE_LO12
:
7084 case R_NDS32_TLS_IE_HI20
:
7085 case R_NDS32_TLS_IE_LO12
:
7086 case R_NDS32_TLS_IE_LO12S2
:
7087 case R_NDS32_TLS_IEGP_HI20
:
7088 case R_NDS32_TLS_IEGP_LO12
:
7089 case R_NDS32_TLS_IEGP_LO12S2
:
7090 case R_NDS32_TLS_DESC_HI20
:
7091 case R_NDS32_TLS_DESC_LO12
:
7092 tls_type
= get_tls_type (r_type
, h
);
7095 if (tls_type
!= GOT_TLS_LE
)
7096 h
->got
.refcount
+= 1;
7097 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
7101 /* This is a global offset table entry for a local symbol. */
7102 if (!elf32_nds32_allocate_local_sym_info (abfd
))
7105 BFD_ASSERT (r_symndx
< symtab_hdr
->sh_info
);
7106 if (tls_type
!= GOT_TLS_LE
)
7107 elf_local_got_refcounts (abfd
)[r_symndx
] += 1;
7108 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
7111 /* We would already have issued an error message if there
7112 is a TLS/non-TLS mismatch, based on the symbol
7113 type. So just combine any TLS types needed. */
7114 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
7115 && tls_type
!= GOT_NORMAL
)
7116 tls_type
|= old_tls_type
;
7118 /* DESC to IE/IEGP if link to executable. */
7119 if ((tls_type
& (GOT_TLS_DESC
| GOT_TLS_IEGP
))
7120 && (bfd_link_executable (info
)))
7121 tls_type
|= (bfd_link_pie (info
) ? GOT_TLS_IEGP
: GOT_TLS_IE
);
7123 if (old_tls_type
!= tls_type
)
7126 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
7128 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
7131 case R_NDS32_9_PLTREL
:
7132 case R_NDS32_25_PLTREL
:
7133 case R_NDS32_PLTREL_HI20
:
7134 case R_NDS32_PLTREL_LO12
:
7135 case R_NDS32_PLT_GOTREL_HI20
:
7136 case R_NDS32_PLT_GOTREL_LO12
:
7137 case R_NDS32_PLT_GOTREL_LO15
:
7138 case R_NDS32_PLT_GOTREL_LO19
:
7139 case R_NDS32_PLT_GOTREL_LO20
:
7141 /* This symbol requires a procedure linkage table entry. We
7142 actually build the entry in adjust_dynamic_symbol,
7143 because this might be a case of linking PIC code without
7144 linking in any dynamic objects, in which case we don't
7145 need to generate a procedure linkage table after all. */
7147 /* If this is a local symbol, we resolve it directly without
7148 creating a procedure linkage table entry. */
7153 || (bfd_link_pie (info
) && h
->def_regular
))
7156 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
7158 h
->plt
.refcount
+= 1;
7161 case R_NDS32_16_RELA
:
7162 case R_NDS32_20_RELA
:
7163 case R_NDS32_5_RELA
:
7164 case R_NDS32_32_RELA
:
7165 case R_NDS32_HI20_RELA
:
7166 case R_NDS32_LO12S3_RELA
:
7167 case R_NDS32_LO12S2_RELA
:
7168 case R_NDS32_LO12S2_DP_RELA
:
7169 case R_NDS32_LO12S2_SP_RELA
:
7170 case R_NDS32_LO12S1_RELA
:
7171 case R_NDS32_LO12S0_RELA
:
7172 case R_NDS32_LO12S0_ORI_RELA
:
7173 case R_NDS32_SDA16S3_RELA
:
7174 case R_NDS32_SDA17S2_RELA
:
7175 case R_NDS32_SDA18S1_RELA
:
7176 case R_NDS32_SDA19S0_RELA
:
7177 case R_NDS32_SDA15S3_RELA
:
7178 case R_NDS32_SDA15S2_RELA
:
7179 case R_NDS32_SDA12S2_DP_RELA
:
7180 case R_NDS32_SDA12S2_SP_RELA
:
7181 case R_NDS32_SDA15S1_RELA
:
7182 case R_NDS32_SDA15S0_RELA
:
7183 case R_NDS32_SDA_FP7U2_RELA
:
7184 case R_NDS32_15_PCREL_RELA
:
7185 case R_NDS32_17_PCREL_RELA
:
7186 case R_NDS32_25_PCREL_RELA
:
7188 if (h
!= NULL
&& !bfd_link_pic (info
))
7191 h
->plt
.refcount
+= 1;
7194 /* If we are creating a shared library, and this is a reloc against
7195 a global symbol, or a non PC relative reloc against a local
7196 symbol, then we need to copy the reloc into the shared library.
7197 However, if we are linking with -Bsymbolic, we do not need to
7198 copy a reloc against a global symbol which is defined in an
7199 object we are including in the link (i.e., DEF_REGULAR is set).
7200 At this point we have not seen all the input files, so it is
7201 possible that DEF_REGULAR is not set now but will be set later
7202 (it is never cleared). We account for that possibility below by
7203 storing information in the dyn_relocs field of the hash table
7204 entry. A similar situation occurs when creating shared libraries
7205 and symbol visibility changes render the symbol local.
7207 If on the other hand, we are creating an executable, we may need
7208 to keep relocations for symbols satisfied by a dynamic library
7209 if we manage to avoid copy relocs for the symbol. */
7210 if ((bfd_link_pic (info
)
7211 && (sec
->flags
& SEC_ALLOC
) != 0
7212 && ((r_type
!= R_NDS32_25_PCREL_RELA
7213 && r_type
!= R_NDS32_15_PCREL_RELA
7214 && r_type
!= R_NDS32_17_PCREL_RELA
7215 && !(r_type
== R_NDS32_32_RELA
7216 && strcmp (sec
->name
, ".eh_frame") == 0))
7219 || h
->root
.type
== bfd_link_hash_defweak
7220 || !h
->def_regular
))))
7221 || (!bfd_link_pic (info
)
7222 && (sec
->flags
& SEC_ALLOC
) != 0
7224 && (h
->root
.type
== bfd_link_hash_defweak
7225 || !h
->def_regular
)))
7227 struct elf_dyn_relocs
*p
;
7228 struct elf_dyn_relocs
**head
;
7231 htab
->root
.dynobj
= dynobj
= abfd
;
7233 /* When creating a shared object, we must copy these
7234 relocs into the output file. We create a reloc
7235 section in dynobj and make room for the reloc. */
7240 name
= bfd_elf_string_from_elf_section
7241 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
7242 elf_section_data (sec
)->rela
.hdr
->sh_name
);
7246 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
7247 && strcmp (bfd_section_name (sec
),
7250 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7255 sreloc
= bfd_make_section (dynobj
, name
);
7256 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
7257 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
7258 if ((sec
->flags
& SEC_ALLOC
) != 0)
7259 flags
|= SEC_ALLOC
| SEC_LOAD
;
7261 || !bfd_set_section_flags (sreloc
, flags
)
7262 || !bfd_set_section_alignment (sreloc
, 2))
7265 elf_section_type (sreloc
) = SHT_RELA
;
7267 elf_section_data (sec
)->sreloc
= sreloc
;
7270 /* If this is a global symbol, we count the number of
7271 relocations we need for this symbol. */
7273 head
= &h
->dyn_relocs
;
7279 Elf_Internal_Sym
*isym
;
7280 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
7284 /* Track dynamic relocs needed for local syms too. */
7285 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7289 vpp
= &elf_section_data (s
)->local_dynrel
;
7290 head
= (struct elf_dyn_relocs
**) vpp
;
7294 if (p
== NULL
|| p
->sec
!= sec
)
7296 size_t amt
= sizeof (*p
);
7297 p
= (struct elf_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
7309 /* Since eh_frame is readonly, R_NDS32_32_RELA
7310 reloc for eh_frame will cause shared library has
7311 TEXTREL entry in the dynamic section. This lead glibc
7312 testsuites to failure (bug-13092) and cause kernel fail
7313 (bug-11819). I think the best solution is to replace
7314 absolute reloc with pc relative reloc in the eh_frame.
7315 To do that, we need to support the following issues:
7318 * gcc/config/nds32/nds32.h: Define
7319 ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel
7320 and DW_EH_PE_sdata4 into DWARF exception header when
7321 option have '-fpic'.
7323 === For binutils ===
7324 * bfd/: Define new reloc R_NDS32_32_PCREL_RELA.
7325 * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This
7326 may break our nds DIFF mechanism, therefore, we
7327 must disable all linker relaxations to ensure
7329 * gas/config/tc-nds32.c (nds32_apply_fix): Replace
7330 R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and
7331 do the necessary modification.
7333 Unfortunately, it still have some problems for nds32
7334 to support pc relative reloc in the eh_frame. So I use
7335 another solution to fix this issue.
7337 However, I find that ld always emit TEXTREL marker for
7338 R_NDS32_NONE relocs in rel.dyn. These none relocs are
7339 correspond to R_NDS32_32_RELA for .eh_frame section.
7340 It means that we always reserve redundant entries of rel.dyn
7341 for these relocs which actually do nothing in dynamic linker.
7343 Therefore, we regard these relocs as pc relative relocs
7344 here and increase the pc_count. */
7345 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
7346 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
7347 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
7348 || (r_type
== R_NDS32_32_RELA
7349 && strcmp (sec
->name
, ".eh_frame") == 0))
7354 /* This relocation describes the C++ object vtable hierarchy.
7355 Reconstruct it for later use during GC. */
7356 case R_NDS32_RELA_GNU_VTINHERIT
:
7357 case R_NDS32_GNU_VTINHERIT
:
7358 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7362 /* This relocation describes which C++ vtable entries are actually
7363 used. Record for later use during GC. */
7364 case R_NDS32_GNU_VTENTRY
:
7365 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7368 case R_NDS32_RELA_GNU_VTENTRY
:
7369 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
7378 /* Write VAL in uleb128 format to P, returning a pointer to the
7380 This code is copied from elf-attr.c. */
7383 write_uleb128 (bfd_byte
*p
, unsigned int val
)
7398 static bfd_signed_vma
7399 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
7400 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
7402 bfd_signed_vma foff
;
7403 bfd_vma symval
, addend
;
7406 /* Get the value of the symbol referred to by the reloc. */
7407 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
7409 Elf_Internal_Sym
*isym
;
7411 /* A local symbol. */
7412 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
7414 if (isym
->st_shndx
== SHN_UNDEF
)
7415 sym_sec
= bfd_und_section_ptr
;
7416 else if (isym
->st_shndx
== SHN_ABS
)
7417 sym_sec
= bfd_abs_section_ptr
;
7418 else if (isym
->st_shndx
== SHN_COMMON
)
7419 sym_sec
= bfd_com_section_ptr
;
7421 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7422 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
7423 + sym_sec
->output_offset
;
7428 struct elf_link_hash_entry
*h
;
7430 /* An external symbol. */
7431 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
7432 h
= elf_sym_hashes (abfd
)[indx
];
7433 BFD_ASSERT (h
!= NULL
);
7435 if (h
->root
.type
!= bfd_link_hash_defined
7436 && h
->root
.type
!= bfd_link_hash_defweak
)
7437 /* This appears to be a reference to an undefined
7438 symbol. Just ignore it--it will be caught by the
7439 regular reloc processing. */
7442 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
7444 sym_sec
= h
->root
.u
.def
.section
;
7445 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
7446 elf_section_data (sym_sec
)->sec_info
,
7447 h
->root
.u
.def
.value
);
7448 symval
= symval
+ sym_sec
->output_section
->vma
7449 + sym_sec
->output_offset
;
7452 symval
= (h
->root
.u
.def
.value
7453 + h
->root
.u
.def
.section
->output_section
->vma
7454 + h
->root
.u
.def
.section
->output_offset
);
7457 addend
= irel
->r_addend
;
7459 foff
= (symval
+ addend
7460 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
7465 /* Convert a 32-bit instruction to 16-bit one.
7466 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
7467 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
7468 type of INSN16. Return 1 if successful. */
7471 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7474 uint16_t insn16
= 0;
7476 unsigned long mach
= bfd_get_mach (abfd
);
7478 if (N32_SH5 (insn
) != 0)
7481 switch (N32_SUB5 (insn
))
7483 case N32_ALU1_ADD_SLLI
:
7484 case N32_ALU1_ADD_SRLI
:
7485 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7487 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
7489 insn_type
= NDS32_INSN_ADD333
;
7491 else if (N32_IS_RT4 (insn
))
7493 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7494 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
7495 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7496 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
7497 insn_type
= NDS32_INSN_ADD45
;
7501 case N32_ALU1_SUB_SLLI
:
7502 case N32_ALU1_SUB_SRLI
:
7503 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7505 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
7507 insn_type
= NDS32_INSN_SUB333
;
7509 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7511 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
7512 insn_type
= NDS32_INSN_SUB45
;
7516 case N32_ALU1_AND_SLLI
:
7517 case N32_ALU1_AND_SRLI
:
7518 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
7519 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7520 && N32_IS_RB3 (insn
))
7522 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7523 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
7524 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7525 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
7527 insn_type
= NDS32_INSN_AND33
;
7531 case N32_ALU1_XOR_SLLI
:
7532 case N32_ALU1_XOR_SRLI
:
7533 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
7534 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7535 && N32_IS_RB3 (insn
))
7537 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7538 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7539 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7540 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7542 insn_type
= NDS32_INSN_XOR33
;
7546 case N32_ALU1_OR_SLLI
:
7547 case N32_ALU1_OR_SRLI
:
7548 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
7549 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7550 && N32_IS_RB3 (insn
))
7552 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7553 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7554 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7555 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7557 insn_type
= NDS32_INSN_OR33
;
7561 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
7562 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
7563 && N32_RA5 (insn
) == N32_RB5 (insn
))
7565 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
7566 insn_type
= NDS32_INSN_NOT33
;
7570 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7572 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7573 insn_type
= NDS32_INSN_SRAI45
;
7578 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7580 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7581 insn_type
= NDS32_INSN_SRLI45
;
7586 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
7588 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7590 insn_type
= NDS32_INSN_SLLI333
;
7595 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7597 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7598 insn_type
= NDS32_INSN_ZEH33
;
7603 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7605 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7606 insn_type
= NDS32_INSN_SEB33
;
7611 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7613 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7614 insn_type
= NDS32_INSN_SEH33
;
7619 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7622 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7623 insn_type
= NDS32_INSN_SLT45
;
7628 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7631 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7632 insn_type
= NDS32_INSN_SLTS45
;
7637 if ((insn16
& 0x8000) == 0)
7643 *pinsn_type
= insn_type
;
7648 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7651 uint16_t insn16
= 0;
7653 unsigned long mach
= bfd_get_mach (abfd
);
7655 /* TODO: bset, bclr, btgl, btst. */
7656 if (__GF (insn
, 6, 4) != 0)
7659 switch (N32_IMMU (insn
, 6))
7662 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7663 && N32_IS_RB3 (insn
))
7665 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7666 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7667 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7668 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7670 insn_type
= NDS32_INSN_MUL33
;
7674 if ((insn16
& 0x8000) == 0)
7680 *pinsn_type
= insn_type
;
7685 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7689 uint16_t insn16
= 0;
7691 unsigned long mach
= bfd_get_mach (abfd
);
7693 /* Decode 32-bit instruction. */
7694 if (insn
& 0x80000000)
7696 /* Not 32-bit insn. */
7700 op6
= N32_OP6 (insn
);
7702 /* Convert it to 16-bit instruction. */
7706 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7708 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7709 insn_type
= NDS32_INSN_MOVI55
;
7711 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7712 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7714 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7715 N32_IMM20S (insn
) - 16);
7716 insn_type
= NDS32_INSN_MOVPI45
;
7721 if (N32_IMM15S (insn
) == 0)
7723 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7724 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7726 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7728 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7729 insn_type
= NDS32_INSN_MOV55
;
7732 else if (N32_IMM15S (insn
) > 0)
7734 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7736 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7738 insn_type
= NDS32_INSN_ADDI333
;
7740 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7741 && N32_IMM15S (insn
) < 32)
7743 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7744 insn_type
= NDS32_INSN_ADDI45
;
7746 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7747 && N32_RT5 (insn
) == N32_RA5 (insn
)
7748 && N32_IMM15S (insn
) < 512)
7750 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7751 insn_type
= NDS32_INSN_ADDI10_SP
;
7753 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7754 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7755 && (N32_IMM15S (insn
) % 4 == 0))
7757 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7758 N32_IMM15S (insn
) >> 2);
7759 insn_type
= NDS32_INSN_ADDRI36_SP
;
7765 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7767 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7768 0 - N32_IMM15S (insn
));
7769 insn_type
= NDS32_INSN_SUBI333
;
7771 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7772 && N32_IMM15S (insn
) > -32)
7774 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7775 0 - N32_IMM15S (insn
));
7776 insn_type
= NDS32_INSN_SUBI45
;
7778 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7779 && N32_RT5 (insn
) == N32_RA5 (insn
)
7780 && N32_IMM15S (insn
) >= -512)
7782 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7783 insn_type
= NDS32_INSN_ADDI10_SP
;
7789 if (N32_IMM15S (insn
) == 0)
7791 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7792 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7794 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7796 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7797 insn_type
= NDS32_INSN_MOV55
;
7803 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7804 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7806 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7807 insn_type
= NDS32_INSN_NEG33
;
7812 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7814 if (N32_IMM15U (insn
) == 1)
7816 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7817 insn_type
= NDS32_INSN_XLSB33
;
7819 else if (N32_IMM15U (insn
) == 0x7ff)
7821 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7822 insn_type
= NDS32_INSN_X11B33
;
7824 else if (N32_IMM15U (insn
) == 0xff)
7826 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7827 insn_type
= NDS32_INSN_ZEB33
;
7829 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7830 && N32_IMM15U (insn
) < 256)
7832 int imm15u
= N32_IMM15U (insn
);
7834 if (__builtin_popcount (imm15u
) == 1)
7837 int imm3u
= __builtin_ctz (imm15u
);
7839 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7840 insn_type
= NDS32_INSN_BMSKI33
;
7842 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7845 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7847 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7848 insn_type
= NDS32_INSN_FEXTI33
;
7855 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7856 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7858 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7859 insn_type
= NDS32_INSN_SLTI45
;
7864 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7865 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7867 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7868 insn_type
= NDS32_INSN_SLTSI45
;
7873 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7875 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7876 insn_type
= NDS32_INSN_LWI450
;
7878 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7879 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7881 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7883 insn_type
= NDS32_INSN_LWI333
;
7885 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7886 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7888 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7889 insn_type
= NDS32_INSN_LWI37
;
7891 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7892 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7894 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7895 insn_type
= NDS32_INSN_LWI37_SP
;
7897 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7898 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7900 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7901 N32_IMM15S (insn
) + 32);
7902 insn_type
= NDS32_INSN_LWI45_FE
;
7907 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7909 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7910 insn_type
= NDS32_INSN_SWI450
;
7912 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7913 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7915 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7917 insn_type
= NDS32_INSN_SWI333
;
7919 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7920 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7922 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7923 insn_type
= NDS32_INSN_SWI37
;
7925 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7926 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7928 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7929 insn_type
= NDS32_INSN_SWI37_SP
;
7933 case N32_OP6_LWI_BI
:
7934 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7935 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7937 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7939 insn_type
= NDS32_INSN_LWI333_BI
;
7943 case N32_OP6_SWI_BI
:
7944 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7945 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7947 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7949 insn_type
= NDS32_INSN_SWI333_BI
;
7954 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7955 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7957 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7959 insn_type
= NDS32_INSN_LHI333
;
7964 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7965 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7967 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7969 insn_type
= NDS32_INSN_SHI333
;
7974 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7975 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7977 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7979 insn_type
= NDS32_INSN_LBI333
;
7984 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7985 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7987 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7989 insn_type
= NDS32_INSN_SBI333
;
7994 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
7997 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
8000 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
8003 if ((insn
& N32_BIT (14)) == 0)
8006 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8007 && N32_RT5 (insn
) != REG_R5
)
8008 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8009 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8010 && N32_RA5 (insn
) != REG_R5
)
8011 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8012 insn_type
= NDS32_INSN_BEQS38
;
8018 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8019 && N32_RT5 (insn
) != REG_R5
)
8020 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8021 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8022 && N32_RA5 (insn
) != REG_R5
)
8023 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8024 insn_type
= NDS32_INSN_BNES38
;
8030 switch (N32_BR2_SUB (insn
))
8033 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8035 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8036 insn_type
= NDS32_INSN_BEQZ38
;
8038 else if (N32_RT5 (insn
) == REG_R15
8039 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8041 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
8042 insn_type
= NDS32_INSN_BEQZS8
;
8047 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8049 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8050 insn_type
= NDS32_INSN_BNEZ38
;
8052 else if (N32_RT5 (insn
) == REG_R15
8053 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8055 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
8056 insn_type
= NDS32_INSN_BNEZS8
;
8061 if (__GF (insn
, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn
), 9))
8063 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
8064 insn_type
= NDS32_INSN_IFCALL9
;
8071 if ((insn
& N32_BIT (24)) == 0)
8074 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
8076 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
8077 insn_type
= NDS32_INSN_J8
;
8083 if (__GF (insn
, 8, 2) != 0)
8086 switch (N32_IMMU (insn
, 5))
8089 if (N32_JREG_HINT (insn
) == 0)
8092 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
8093 insn_type
= NDS32_INSN_JR5
;
8095 else if (N32_JREG_HINT (insn
) == 1)
8098 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
8099 insn_type
= NDS32_INSN_RET5
;
8101 else if (N32_JREG_HINT (insn
) == 3)
8103 /* ifret = mov55 $sp, $sp */
8104 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
8105 insn_type
= NDS32_INSN_IFRET
;
8110 /* It's convertible when return rt5 is $lp and address
8111 translation is kept. */
8112 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
8114 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
8115 insn_type
= NDS32_INSN_JRAL5
;
8122 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
8124 /* For v3, swid above 31 are used for ex9.it. */
8125 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
8126 insn_type
= NDS32_INSN_BREAK16
;
8131 /* This instruction has no 16-bit variant. */
8136 /* Bit-15 of insn16 should be set for a valid instruction. */
8137 if ((insn16
& 0x8000) == 0)
8143 *pinsn_type
= insn_type
;
8148 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
8149 Elf_Internal_Rela
*reloc
)
8151 uint16_t insn16
= 0;
8153 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
8154 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
8157 if (!N32_IS_RT3 (insn
))
8160 switch (N32_OP6 (insn
))
8163 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8164 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8167 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8168 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8171 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
8174 if (__GF (insn
, 17, 3) == 6)
8175 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
8176 else if (__GF (insn
, 17, 3) == 7)
8177 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
8181 if ((insn16
& 0x8000) == 0)
8188 /* Convert a 16-bit instruction to 32-bit one.
8189 INSN16 it the input and PINSN it the point to output.
8190 Return non-zero on successful. Otherwise 0 is returned. */
8193 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
8195 uint32_t insn
= 0xffffffff;
8196 unsigned long mach
= bfd_get_mach (abfd
);
8198 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
8200 switch (__GF (insn16
, 9, 6))
8202 case 0x4: /* add45 */
8203 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8206 case 0x5: /* sub45 */
8207 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8210 case 0x6: /* addi45 */
8211 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8212 N16_IMM5U (insn16
));
8214 case 0x7: /* subi45 */
8215 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8216 -N16_IMM5U (insn16
));
8218 case 0x8: /* srai45 */
8219 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8220 N16_IMM5U (insn16
));
8222 case 0x9: /* srli45 */
8223 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8224 N16_IMM5U (insn16
));
8226 case 0xa: /* slli333 */
8227 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8228 N16_IMM3U (insn16
));
8230 case 0xc: /* add333 */
8231 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8234 case 0xd: /* sub333 */
8235 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8238 case 0xe: /* addi333 */
8239 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8240 N16_IMM3U (insn16
));
8242 case 0xf: /* subi333 */
8243 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8244 -N16_IMM3U (insn16
));
8246 case 0x10: /* lwi333 */
8247 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8248 N16_IMM3U (insn16
));
8250 case 0x12: /* lhi333 */
8251 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8252 N16_IMM3U (insn16
));
8254 case 0x13: /* lbi333 */
8255 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8256 N16_IMM3U (insn16
));
8258 case 0x11: /* lwi333.bi */
8259 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8260 N16_IMM3U (insn16
));
8262 case 0x14: /* swi333 */
8263 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8264 N16_IMM3U (insn16
));
8266 case 0x16: /* shi333 */
8267 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8268 N16_IMM3U (insn16
));
8270 case 0x17: /* sbi333 */
8271 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8272 N16_IMM3U (insn16
));
8274 case 0x15: /* swi333.bi */
8275 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8276 N16_IMM3U (insn16
));
8278 case 0x18: /* addri36.sp */
8279 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
8280 N16_IMM6U (insn16
) << 2);
8282 case 0x19: /* lwi45.fe */
8283 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
8284 (N16_IMM5U (insn16
) - 32));
8286 case 0x1a: /* lwi450 */
8287 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8289 case 0x1b: /* swi450 */
8290 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8293 /* These are r15 implied instructions. */
8294 case 0x30: /* slts45 */
8295 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8297 case 0x31: /* slt45 */
8298 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8300 case 0x32: /* sltsi45 */
8301 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8303 case 0x33: /* slti45 */
8304 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8306 case 0x34: /* beqzs8, bnezs8 */
8307 if (insn16
& N32_BIT (8))
8308 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
8310 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
8313 case 0x35: /* break16, ex9.it */
8314 /* Only consider range of v3 break16. */
8315 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
8318 case 0x3c: /* ifcall9 */
8319 insn
= N32_BR2 (SOP0
, 0, N16_IMM9U (insn16
));
8321 case 0x3d: /* movpi45 */
8322 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
8325 case 0x3f: /* MISC33 */
8326 switch (insn16
& 0x7)
8329 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8332 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8336 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8340 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8344 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8348 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8355 switch (insn16
& 0x7)
8358 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
8361 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8364 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8367 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8369 case 4: /* xlsb33 */
8370 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
8372 case 5: /* x11b33 */
8373 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
8375 case 6: /* bmski33 */
8376 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8377 1 << __GF (insn16
, 3, 3));
8379 case 7: /* fexti33 */
8380 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8381 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
8387 switch (__GF (insn16
, 10, 5))
8389 case 0x0: /* mov55 or ifret16 */
8390 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
8391 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
8392 insn
= N32_JREG (JR
, 0, 0, 0, 3);
8394 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
8396 case 0x1: /* movi55 */
8397 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
8399 case 0x1b: /* addi10s (V2) */
8400 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
8404 switch (__GF (insn16
, 11, 4))
8406 case 0x7: /* lwi37.fp/swi37.fp */
8407 if (insn16
& N32_BIT (7)) /* swi37.fp */
8408 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8410 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8412 case 0x8: /* beqz38 */
8413 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8415 case 0x9: /* bnez38 */
8416 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8418 case 0xa: /* beqs38/j8, implied r5 */
8419 if (N16_RT38 (insn16
) == 5)
8420 insn
= N32_JI (J
, N16_IMM8S (insn16
));
8422 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8424 case 0xb: /* bnes38 and others. */
8425 if (N16_RT38 (insn16
) == 5)
8427 switch (__GF (insn16
, 5, 3))
8430 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
8433 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
8436 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
8438 case 2: /* ex9.it imm5 */
8439 /* ex9.it had no 32-bit variantl. */
8441 case 5: /* add5.pc */
8442 /* add5.pc had no 32-bit variantl. */
8447 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8449 case 0xe: /* lwi37/swi37 */
8450 if (insn16
& (1 << 7)) /* swi37.sp */
8451 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8453 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8458 if (insn
& 0x80000000)
8468 is_sda_access_insn (unsigned long insn
)
8470 switch (N32_OP6 (insn
))
8491 static unsigned long
8492 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
8498 case R_NDS32_GOT_LO12
:
8499 case R_NDS32_GOTOFF_LO12
:
8500 case R_NDS32_PLTREL_LO12
:
8501 case R_NDS32_PLT_GOTREL_LO12
:
8502 case R_NDS32_LO12S0_RELA
:
8503 switch (N32_OP6 (insn
))
8507 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
8511 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), N32_BIT (19));
8515 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
8519 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), N32_BIT (19));
8524 case R_NDS32_LO12S1_RELA
:
8525 switch (N32_OP6 (insn
))
8529 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
8533 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (18));
8537 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (19));
8542 case R_NDS32_LO12S2_RELA
:
8543 switch (N32_OP6 (insn
))
8547 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
8551 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
8556 case R_NDS32_LO12S2_DP_RELA
:
8557 case R_NDS32_LO12S2_SP_RELA
:
8558 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
8568 /* Linker hasn't found the correct merge section for non-section symbol
8569 in relax time, this work is left to the function elf_link_input_bfd().
8570 So for non-section symbol, _bfd_merged_section_offset is also needed
8571 to find the correct symbol address. */
8574 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
8575 asection
**psec
, Elf_Internal_Rela
*rel
)
8577 asection
*sec
= *psec
;
8580 relocation
= (sec
->output_section
->vma
8581 + sec
->output_offset
+ sym
->st_value
);
8582 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
8584 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
8586 _bfd_merged_section_offset (abfd
, psec
,
8587 elf_section_data (sec
)->sec_info
,
8588 sym
->st_value
+ rel
->r_addend
);
8591 _bfd_merged_section_offset (abfd
, psec
,
8592 elf_section_data (sec
)->sec_info
,
8593 sym
->st_value
) + rel
->r_addend
;
8597 /* If we have changed the section, and our original section is
8598 marked with SEC_EXCLUDE, it means that the original
8599 SEC_MERGE section has been completely subsumed in some
8600 other SEC_MERGE section. In this case, we need to leave
8601 some info around for --emit-relocs. */
8602 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
8603 sec
->kept_section
= *psec
;
8606 rel
->r_addend
-= relocation
;
8607 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8613 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8614 Elf_Internal_Sym
*isymbuf
,
8615 Elf_Internal_Shdr
*symtab_hdr
)
8617 bfd_signed_vma foff
;
8618 bfd_vma symval
, addend
;
8619 Elf_Internal_Rela irel_fn
;
8620 Elf_Internal_Sym
*isym
;
8623 /* Get the value of the symbol referred to by the reloc. */
8624 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8626 /* A local symbol. */
8627 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8629 if (isym
->st_shndx
== SHN_UNDEF
)
8630 sym_sec
= bfd_und_section_ptr
;
8631 else if (isym
->st_shndx
== SHN_ABS
)
8632 sym_sec
= bfd_abs_section_ptr
;
8633 else if (isym
->st_shndx
== SHN_COMMON
)
8634 sym_sec
= bfd_com_section_ptr
;
8636 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8637 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8638 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8639 addend
= irel_fn
.r_addend
;
8644 struct elf_link_hash_entry
*h
;
8646 /* An external symbol. */
8647 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8648 h
= elf_sym_hashes (abfd
)[indx
];
8649 BFD_ASSERT (h
!= NULL
);
8651 while (h
->root
.type
== bfd_link_hash_indirect
8652 || h
->root
.type
== bfd_link_hash_warning
)
8653 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8655 if (h
->root
.type
!= bfd_link_hash_defined
8656 && h
->root
.type
!= bfd_link_hash_defweak
)
8657 /* This appears to be a reference to an undefined
8658 symbol. Just ignore it--it will be caught by the
8659 regular reloc processing. */
8662 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8664 sym_sec
= h
->root
.u
.def
.section
;
8665 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8666 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8667 symval
= symval
+ sym_sec
->output_section
->vma
8668 + sym_sec
->output_offset
;
8671 symval
= (h
->root
.u
.def
.value
8672 + h
->root
.u
.def
.section
->output_section
->vma
8673 + h
->root
.u
.def
.section
->output_offset
);
8674 addend
= irel
->r_addend
;
8677 foff
= symval
+ addend
;
8683 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8684 asection
*sec
, Elf_Internal_Rela
*rel
)
8687 unsigned short insn16
;
8689 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8691 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8692 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8693 if (insn16
== NDS32_NOP16
)
8698 /* It checks whether the instruction could be converted to
8699 16-bit form and returns the converted one.
8701 `internal_relocs' is supposed to be sorted. */
8704 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8705 Elf_Internal_Rela
*reloc
,
8706 Elf_Internal_Rela
*internal_relocs
,
8707 Elf_Internal_Rela
*irelend
,
8710 #define NORMAL_32_TO_16 (1 << 0)
8711 #define SPECIAL_32_TO_16 (1 << 1)
8712 bfd_byte
*contents
= NULL
;
8716 Elf_Internal_Rela
*pc_rel
;
8717 Elf_Internal_Shdr
*symtab_hdr
;
8718 Elf_Internal_Sym
*isymbuf
= NULL
;
8722 if (reloc
->r_offset
+ 4 > sec
->size
)
8725 offset
= reloc
->r_offset
;
8727 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8729 insn
= bfd_getb32 (contents
+ offset
);
8731 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8732 convert_type
= NORMAL_32_TO_16
;
8733 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8734 convert_type
= SPECIAL_32_TO_16
;
8738 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8739 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8742 /* Find the first relocation of the same relocation-type,
8743 so we iteratie them forward. */
8745 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8748 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8750 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8751 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8752 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8753 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8755 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8756 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8761 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8763 /* movi => movi55 */
8764 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8766 /* mem_addr is unsigned, but the value should
8767 be between [-16, 15]. */
8768 if ((mem_addr
+ 0x10) >> 5)
8772 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8773 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8775 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8776 because it can be relaxed to addi for TLS_LE_ADD. */
8779 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8780 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8781 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8782 && convert_type
== SPECIAL_32_TO_16
)
8785 We've selected a best fp-base for this access, so we can
8786 always resolve it anyway. Do nothing. */
8789 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8790 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8791 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8792 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8793 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8794 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8796 /* Prevent unresolved addi instruction translate
8797 to addi45 or addi333. */
8800 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8802 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8803 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8813 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8814 Elf_Internal_Rela
*reloc
,
8815 Elf_Internal_Rela
*internal_relocs
,
8816 Elf_Internal_Rela
*irelend
,
8817 unsigned short insn16
)
8819 Elf_Internal_Rela
*pc_rel
;
8822 offset
= reloc
->r_offset
;
8823 bfd_putb16 (insn16
, contents
+ offset
);
8824 /* Find the first relocation of the same relocation-type,
8825 so we iteratie them forward. */
8827 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8830 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8832 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8833 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8834 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8837 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8839 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8841 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8842 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8844 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
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
)
8848 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8849 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8851 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8855 /* Find a relocation of type specified by `reloc_type'
8856 of the same r_offset with reloc.
8857 If not found, return irelend.
8859 Assuming relocations are sorted by r_offset,
8860 we find the relocation from `reloc' backward untill relocs,
8861 or find it from `reloc' forward untill irelend. */
8863 static Elf_Internal_Rela
*
8864 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8865 Elf_Internal_Rela
*relocs
,
8866 Elf_Internal_Rela
*irelend
,
8867 enum elf_nds32_reloc_type reloc_type
)
8869 Elf_Internal_Rela
*rel_t
;
8871 /* Find backward. */
8873 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8875 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8878 /* We didn't find it backward. Try find it forward. */
8880 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8882 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8888 /* Find a relocation of specified type and offset.
8889 `reloc' is just a refence point to find a relocation at specified offset.
8890 If not found, return irelend.
8892 Assuming relocations are sorted by r_offset,
8893 we find the relocation from `reloc' backward untill relocs,
8894 or find it from `reloc' forward untill irelend. */
8896 static Elf_Internal_Rela
*
8897 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8898 Elf_Internal_Rela
*relocs
,
8899 Elf_Internal_Rela
*irelend
,
8900 enum elf_nds32_reloc_type reloc_type
,
8903 Elf_Internal_Rela
*rel_t
= NULL
;
8905 /* First, we try to find a relocation of offset `offset_p',
8906 and then we use find_relocs_at_address to find specific type. */
8908 if (reloc
->r_offset
> offset_p
)
8910 /* Find backward. */
8912 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8915 else if (reloc
->r_offset
< offset_p
)
8919 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8926 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8929 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8932 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8933 struct nds32_elf_blank
8935 /* Where the blank begins. */
8937 /* The size of the blank. */
8939 /* The accumulative size before this blank. */
8941 nds32_elf_blank_t
*next
;
8942 nds32_elf_blank_t
*prev
;
8945 static nds32_elf_blank_t
*blank_free_list
= NULL
;
8947 static nds32_elf_blank_t
*
8948 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
8950 nds32_elf_blank_t
*blank_t
;
8952 if (blank_free_list
)
8954 blank_t
= blank_free_list
;
8955 blank_free_list
= blank_free_list
->next
;
8958 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
8960 if (blank_t
== NULL
)
8963 blank_t
->offset
= offset_p
;
8964 blank_t
->size
= size_p
;
8965 blank_t
->total_size
= 0;
8966 blank_t
->next
= NULL
;
8967 blank_t
->prev
= NULL
;
8973 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
8975 if (blank_free_list
)
8977 blank_free_list
->prev
= blank_p
;
8978 blank_p
->next
= blank_free_list
;
8981 blank_p
->next
= NULL
;
8983 blank_p
->prev
= NULL
;
8984 blank_free_list
= blank_p
;
8988 clean_nds32_elf_blank (void)
8990 nds32_elf_blank_t
*blank_t
;
8992 while (blank_free_list
)
8994 blank_t
= blank_free_list
;
8995 blank_free_list
= blank_free_list
->next
;
9000 static nds32_elf_blank_t
*
9001 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
9003 nds32_elf_blank_t
*blank_t
;
9009 while (blank_t
&& addr
< blank_t
->offset
)
9010 blank_t
= blank_t
->prev
;
9011 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
9012 blank_t
= blank_t
->next
;
9018 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9021 nds32_elf_blank_t
*blank_t
;
9023 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9030 if (addr
< blank_t
->offset
+ blank_t
->size
)
9031 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
9033 return blank_t
->total_size
+ blank_t
->size
;
9037 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
9039 nds32_elf_blank_t
*blank_t
, *blank_t2
;
9043 *blank_p
= create_nds32_elf_blank (addr
, len
);
9044 return *blank_p
? TRUE
: FALSE
;
9047 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9049 if (blank_t
== NULL
)
9051 blank_t
= create_nds32_elf_blank (addr
, len
);
9054 while ((*blank_p
)->prev
!= NULL
)
9055 *blank_p
= (*blank_p
)->prev
;
9056 blank_t
->next
= *blank_p
;
9057 (*blank_p
)->prev
= blank_t
;
9058 (*blank_p
) = blank_t
;
9062 if (addr
< blank_t
->offset
+ blank_t
->size
)
9064 /* Extend the origin blank. */
9065 if (addr
+ len
> blank_t
->offset
+ blank_t
->size
)
9066 blank_t
->size
= addr
+ len
- blank_t
->offset
;
9070 blank_t2
= create_nds32_elf_blank (addr
, len
);
9075 blank_t
->next
->prev
= blank_t2
;
9076 blank_t2
->next
= blank_t
->next
;
9078 blank_t2
->prev
= blank_t
;
9079 blank_t
->next
= blank_t2
;
9080 *blank_p
= blank_t2
;
9087 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9090 nds32_elf_blank_t
*blank_t
;
9092 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
9099 blank_t
->total_size
= 0;
9100 blank_t
= blank_t
->next
;
9105 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
9106 blank_t
= blank_t
->next
;
9113 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
9115 nds32_elf_blank_t
*blank_t
;
9116 bfd_vma total_size
= 0;
9122 while (blank_t
->prev
)
9123 blank_t
= blank_t
->prev
;
9126 blank_t
->total_size
= total_size
;
9127 total_size
+= blank_t
->size
;
9128 blank_t
= blank_t
->next
;
9133 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
9134 nds32_elf_blank_t
*blank_p
)
9136 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
9137 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
9138 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
9139 unsigned int sec_shndx
; /* The section the be relaxed. */
9140 bfd_byte
*contents
; /* Contents data of iterating section. */
9141 Elf_Internal_Rela
*internal_relocs
;
9142 Elf_Internal_Rela
*irel
;
9143 Elf_Internal_Rela
*irelend
;
9144 struct elf_link_hash_entry
**sym_hashes
;
9145 struct elf_link_hash_entry
**end_hashes
;
9146 unsigned int symcount
;
9148 nds32_elf_blank_t
*blank_t
;
9149 nds32_elf_blank_t
*blank_t2
;
9150 nds32_elf_blank_t
*blank_head
;
9152 blank_head
= blank_t
= blank_p
;
9153 while (blank_head
->prev
!= NULL
)
9154 blank_head
= blank_head
->prev
;
9155 while (blank_t
->next
!= NULL
)
9156 blank_t
= blank_t
->next
;
9158 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
9160 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
9161 blank_t
->next
->prev
= blank_t
;
9163 if (blank_head
->offset
> 0)
9165 blank_head
->prev
= create_nds32_elf_blank (0, 0);
9166 blank_head
->prev
->next
= blank_head
;
9167 blank_head
= blank_head
->prev
;
9170 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
9172 /* The deletion must stop at the next ALIGN reloc for an alignment
9173 power larger than the number of bytes we are deleting. */
9175 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9176 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
9181 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9182 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
9183 symtab_hdr
->contents
= (bfd_byte
*) isym
;
9186 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
9189 blank_t
= blank_head
;
9190 calc_nds32_blank_total (blank_head
);
9192 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
9194 /* Adjust all the relocs. */
9196 /* Relocations MUST be kept in memory, because relaxation adjust them. */
9197 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
9198 TRUE
/* keep_memory */);
9199 irelend
= internal_relocs
+ sect
->reloc_count
;
9201 blank_t
= blank_head
;
9202 blank_t2
= blank_head
;
9204 if (!(sect
->flags
& SEC_RELOC
))
9207 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
9209 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
9213 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
9214 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
9215 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9217 unsigned long val
= 0;
9219 long before
, between
;
9222 switch (ELF32_R_TYPE (irel
->r_info
))
9225 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
9227 case R_NDS32_DIFF16
:
9228 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
9230 case R_NDS32_DIFF32
:
9231 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
9232 /* Get the signed bit and mask for the high part. The
9233 gcc will alarm when right shift 32-bit since the
9234 type size of long may be 32-bit. */
9235 mask
= 0 - (val
>> 31);
9237 offset
= (val
| (mask
- 0xffffffff));
9246 0 |encoded in location|
9247 |------------|-------------------|---------
9249 -- before ---| *****************
9250 --------------------- between ---|
9252 We only care how much data are relax between DIFF,
9255 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9256 between
= get_nds32_elf_blank_total (&blank_t
,
9257 irel
->r_addend
+ offset
, 0);
9258 if (between
== before
)
9259 goto done_adjust_diff
;
9261 switch (ELF32_R_TYPE (irel
->r_info
))
9264 bfd_put_8 (abfd
, offset
- (between
- before
),
9265 contents
+ irel
->r_offset
);
9267 case R_NDS32_DIFF16
:
9268 bfd_put_16 (abfd
, offset
- (between
- before
),
9269 contents
+ irel
->r_offset
);
9271 case R_NDS32_DIFF32
:
9272 bfd_put_32 (abfd
, offset
- (between
- before
),
9273 contents
+ irel
->r_offset
);
9277 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
9278 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9281 unsigned int len
= 0;
9282 unsigned long before
, between
;
9285 val
= _bfd_read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
9288 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9289 between
= get_nds32_elf_blank_total (&blank_t
,
9290 irel
->r_addend
+ val
, 0);
9291 if (between
== before
)
9292 goto done_adjust_diff
;
9294 p
= contents
+ irel
->r_offset
;
9296 memset (p
, 0x80, len
);
9298 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
9306 raddr
= irel
->r_offset
;
9307 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
9310 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
9312 if (blank_t2
&& blank_t2
->next
9313 && (blank_t2
->offset
> raddr
9314 || blank_t2
->next
->offset
<= raddr
))
9316 (_("%pB: error: search_nds32_elf_blank reports wrong node"),
9319 /* Mark reloc in deleted portion as NONE.
9320 For some relocs like R_NDS32_LABEL that doesn't modify the
9321 content in the section. R_NDS32_LABEL doesn't belong to the
9322 instruction in the section, so we should preserve it. */
9323 if (raddr
>= blank_t2
->offset
9324 && raddr
< blank_t2
->offset
+ blank_t2
->size
9325 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
9326 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
9327 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
9328 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
9329 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
9330 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
9332 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
9338 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
9339 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
9340 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
9343 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
9344 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
9345 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
9347 if (irel
->r_addend
<= sec
->size
)
9349 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
9354 /* Adjust the local symbols defined in this section. */
9355 blank_t
= blank_head
;
9356 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
9358 if (isym
->st_shndx
== sec_shndx
)
9360 if (isym
->st_value
<= sec
->size
)
9363 bfd_vma orig_addr
= isym
->st_value
;
9365 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
9366 isym
->st_value
-= ahead
;
9368 /* Adjust function size. */
9369 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
9370 && isym
->st_size
> 0)
9372 get_nds32_elf_blank_total
9373 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
9378 /* Now adjust the global symbols defined in this section. */
9379 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
9380 - symtab_hdr
->sh_info
);
9381 sym_hashes
= elf_sym_hashes (abfd
);
9382 end_hashes
= sym_hashes
+ symcount
;
9383 blank_t
= blank_head
;
9384 for (; sym_hashes
< end_hashes
; sym_hashes
++)
9386 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
9388 if ((sym_hash
->root
.type
== bfd_link_hash_defined
9389 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
9390 && sym_hash
->root
.u
.def
.section
== sec
)
9392 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
9395 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
9397 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
9398 sym_hash
->root
.u
.def
.value
-= ahead
;
9400 /* Adjust function size. */
9401 if (sym_hash
->type
== STT_FUNC
)
9403 get_nds32_elf_blank_total
9404 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
9410 contents
= elf_section_data (sec
)->this_hdr
.contents
;
9411 blank_t
= blank_head
;
9412 while (blank_t
->next
)
9414 /* Actually delete the bytes. */
9416 /* If current blank is the last blank overlap with current section,
9417 go to finish process. */
9418 if (sec
->size
<= (blank_t
->next
->offset
))
9421 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9422 contents
+ blank_t
->offset
+ blank_t
->size
,
9423 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
9425 blank_t
= blank_t
->next
;
9428 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
9430 /* There are remaining code between blank and section boundary.
9431 Move the remaining code to appropriate location. */
9432 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9433 contents
+ blank_t
->offset
+ blank_t
->size
,
9434 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
9435 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
9438 /* This blank is not entirely included in the section,
9439 reduce the section size by only part of the blank size. */
9440 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
9444 blank_t
= blank_head
;
9445 blank_head
= blank_head
->next
;
9446 remove_nds32_elf_blank (blank_t
);
9452 /* Get the contents of a section. */
9455 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
9456 bfd_byte
**contents_p
, bfd_boolean cache
)
9458 /* Get the section contents. */
9459 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
9460 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
9463 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
9466 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
9472 /* Get the contents of the internal symbol of abfd. */
9475 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
9476 Elf_Internal_Sym
**isymbuf_p
)
9478 Elf_Internal_Shdr
*symtab_hdr
;
9479 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9481 /* Read this BFD's local symbols if we haven't done so already. */
9482 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
9484 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
9485 if (*isymbuf_p
== NULL
)
9487 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9488 symtab_hdr
->sh_info
, 0,
9490 if (*isymbuf_p
== NULL
)
9494 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
9499 /* Range of small data. */
9500 static bfd_vma sdata_range
[2][2];
9501 static bfd_vma
const sdata_init_range
[2] =
9502 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
9505 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
9506 bfd_byte
*contents
, bfd_vma addr
)
9508 unsigned long insn
= bfd_getb32 (contents
+ addr
);
9510 if (insn
& 0x80000000)
9516 /* Set the gp relax range. We have to measure the safe range
9517 to do gp relaxation. */
9520 relax_range_measurement (bfd
*abfd
)
9522 asection
*sec_f
, *sec_b
;
9523 /* For upper bound. */
9524 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
9526 static int decide_relax_range
= 0;
9528 int range_number
= ARRAY_SIZE (sdata_init_range
);
9530 if (decide_relax_range
)
9532 decide_relax_range
= 1;
9534 if (sda_rela_sec
== NULL
)
9536 /* Since there is no data sections, we assume the range is page size. */
9537 for (i
= 0; i
< range_number
; i
++)
9539 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9540 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9545 /* Get the biggest alignment power after the gp located section. */
9546 sec_f
= sda_rela_sec
->output_section
;
9547 sec_b
= sec_f
->next
;
9549 while (sec_b
!= NULL
)
9551 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9552 align
= (1 << sec_b
->alignment_power
);
9553 sec_b
= sec_b
->next
;
9556 /* I guess we can not determine the section before
9557 gp located section, so we assume the align is max page size. */
9558 for (i
= 0; i
< range_number
; i
++)
9560 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9561 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9562 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9563 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9567 /* These are macros used to check flags encoded in r_addend.
9568 They are only used by nds32_elf_relax_section (). */
9569 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9570 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9571 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9572 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9574 static const char * unrecognized_reloc_msg
=
9575 /* xgettext:c-format */
9576 N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64
);
9578 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9581 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9582 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9583 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9584 Elf_Internal_Shdr
*symtab_hdr
)
9586 /* There are 3 variations for LONGCALL1
9587 case 4-4-2; 16-bit on, optimize off or optimize for space
9588 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9589 ori ta, ta, lo12(symbol) ; LO12S0
9592 case 4-4-4; 16-bit off, optimize don't care
9593 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9594 ori ta, ta, lo12(symbol) ; LO12S0
9597 case 4-4-4; 16-bit on, optimize for speed
9598 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9599 ori ta, ta, lo12(symbol) ; LO12S0
9601 Check code for -mlong-calls output. */
9603 /* Get the reloc for the address from which the register is
9604 being loaded. This reloc will tell us which function is
9605 actually being called. */
9608 int seq_len
; /* Original length of instruction sequence. */
9610 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9611 bfd_signed_vma foff
;
9614 irelend
= internal_relocs
+ sec
->reloc_count
;
9615 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9616 laddr
= irel
->r_offset
;
9617 *insn_len
= seq_len
;
9619 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9620 R_NDS32_HI20_RELA
, laddr
);
9621 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9622 R_NDS32_LO12S0_ORI_RELA
,
9625 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9627 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL1",
9628 (uint64_t) irel
->r_offset
);
9632 /* Get the value of the symbol referred to by the reloc. */
9633 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9635 /* This condition only happened when symbol is undefined. */
9637 || foff
< -CONSERVATIVE_24BIT_S1
9638 || foff
>= CONSERVATIVE_24BIT_S1
)
9641 /* Relax to: jal symbol; 25_PCREL. */
9642 /* For simplicity of coding, we are going to modify the section
9643 contents, the section relocs, and the BFD symbol table. We
9644 must tell the rest of the code not to free up this
9645 information. It would be possible to instead create a table
9646 of changes which have to be made, as is done in coff-mips.c;
9647 that would be more work, but would require less memory when
9648 the linker is run. */
9650 /* Replace the long call with a jal. */
9651 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9652 R_NDS32_25_PCREL_RELA
);
9653 irel
->r_addend
= hi_irelfn
->r_addend
;
9655 /* We don't resolve this here but resolve it in relocate_section. */
9657 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9660 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9662 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9667 insn16
= NDS32_NOP16
;
9668 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9670 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9671 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9677 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9678 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9681 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9682 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9683 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9684 Elf_Internal_Shdr
*symtab_hdr
)
9686 /* bltz rt, .L1 ; LONGCALL2
9687 jal symbol ; 25_PCREL
9690 /* Get the reloc for the address from which the register is
9691 being loaded. This reloc will tell us which function is
9692 actually being called. */
9696 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9697 bfd_signed_vma foff
;
9699 irelend
= internal_relocs
+ sec
->reloc_count
;
9700 laddr
= irel
->r_offset
;
9702 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9703 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9705 if (i1_irelfn
== irelend
)
9707 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL2",
9708 (uint64_t) irel
->r_offset
);
9712 insn
= bfd_getb32 (contents
+ laddr
);
9714 /* Get the value of the symbol referred to by the reloc. */
9715 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
);
9718 || foff
< -CONSERVATIVE_16BIT_S1
9719 || foff
>= CONSERVATIVE_16BIT_S1
)
9722 /* Relax to bgezal rt, label ; 17_PCREL
9723 or bltzal rt, label ; 17_PCREL */
9725 /* Convert to complimentary conditional call. */
9726 insn
= CONVERT_CONDITION_CALL (insn
);
9728 /* For simplicity of coding, we are going to modify the section
9729 contents, the section relocs, and the BFD symbol table. We
9730 must tell the rest of the code not to free up this
9731 information. It would be possible to instead create a table
9732 of changes which have to be made, as is done in coff-mips.c;
9733 that would be more work, but would require less memory when
9734 the linker is run. */
9736 /* Clean unnessary relocations. */
9738 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9740 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9741 R_NDS32_17_PCREL_RELA
, laddr
);
9742 if (cond_irelfn
!= irelend
)
9743 cond_irelfn
->r_info
=
9744 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9746 /* Replace the long call with a bgezal. */
9747 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9748 R_NDS32_17_PCREL_RELA
);
9749 irel
->r_addend
= i1_irelfn
->r_addend
;
9751 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9757 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9760 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9761 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9762 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9763 Elf_Internal_Shdr
*symtab_hdr
)
9765 /* There are 3 variations for LONGCALL3
9766 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9767 bltz rt, $1 ; LONGCALL3
9768 sethi ta, hi20(symbol) ; HI20
9769 ori ta, ta, lo12(symbol) ; LO12S0
9773 case 4-4-4-4; 16-bit off, optimize don't care
9774 bltz rt, $1 ; LONGCALL3
9775 sethi ta, hi20(symbol) ; HI20
9776 ori ta, ta, lo12(symbol) ; LO12S0
9780 case 4-4-4-4; 16-bit on, optimize for speed
9781 bltz rt, $1 ; LONGCALL3
9782 sethi ta, hi20(symbol) ; HI20
9783 ori ta, ta, lo12(symbol) ; LO12S0
9787 /* Get the reloc for the address from which the register is
9788 being loaded. This reloc will tell us which function is
9789 actually being called. */
9792 int seq_len
; /* Original length of instruction sequence. */
9794 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9795 bfd_signed_vma foff
;
9798 irelend
= internal_relocs
+ sec
->reloc_count
;
9799 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9800 laddr
= irel
->r_offset
;
9801 *insn_len
= seq_len
;
9804 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9805 R_NDS32_HI20_RELA
, laddr
+ 4);
9807 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9808 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9810 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9812 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL3",
9813 (uint64_t) irel
->r_offset
);
9817 /* Get the value of the symbol referred to by the reloc. */
9818 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9821 || foff
< -CONSERVATIVE_24BIT_S1
9822 || foff
>= CONSERVATIVE_24BIT_S1
)
9825 insn
= bfd_getb32 (contents
+ laddr
);
9826 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9828 /* Relax to bgezal rt, label ; 17_PCREL
9829 or bltzal rt, label ; 17_PCREL */
9831 /* Convert to complimentary conditional call. */
9832 insn
= CONVERT_CONDITION_CALL (insn
);
9833 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9837 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9839 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9841 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9844 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9845 R_NDS32_17_PCREL_RELA
, laddr
);
9846 if (cond_irelfn
!= irelend
)
9848 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9849 R_NDS32_17_PCREL_RELA
);
9850 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9855 insn16
= NDS32_NOP16
;
9856 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9857 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9859 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9863 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9865 /* Relax to the following instruction sequence
9866 bltz rt, $1 ; LONGCALL2
9867 jal symbol ; 25_PCREL
9871 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9873 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9874 R_NDS32_25_PCREL_RELA
);
9876 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9879 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9883 insn16
= NDS32_NOP16
;
9884 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9886 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9887 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9894 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9897 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9898 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9899 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9900 Elf_Internal_Shdr
*symtab_hdr
)
9902 /* There are 3 variations for LONGJUMP1
9903 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9904 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9905 ori ta, ta, lo12(symbol) ; LO12S0
9908 case 4-4-4; 16-bit off, optimize don't care
9909 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9910 ori ta, ta, lo12(symbol) ; LO12S0
9913 case 4-4-4; 16-bit on, optimize for speed
9914 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9915 ori ta, ta, lo12(symbol) ; LO12S0
9918 /* Get the reloc for the address from which the register is
9919 being loaded. This reloc will tell us which function is
9920 actually being called. */
9923 int seq_len
; /* Original length of instruction sequence. */
9924 int insn16_on
; /* 16-bit on/off. */
9926 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9927 bfd_signed_vma foff
;
9929 unsigned long reloc
;
9931 irelend
= internal_relocs
+ sec
->reloc_count
;
9932 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9933 laddr
= irel
->r_offset
;
9934 *insn_len
= seq_len
;
9935 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
9938 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9939 R_NDS32_HI20_RELA
, laddr
);
9941 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9942 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
9943 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9945 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP1",
9946 (uint64_t) irel
->r_offset
);
9950 /* Get the value of the symbol referred to by the reloc. */
9951 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9954 || foff
>= CONSERVATIVE_24BIT_S1
9955 || foff
< -CONSERVATIVE_24BIT_S1
)
9959 && foff
>= -ACCURATE_8BIT_S1
9960 && foff
< ACCURATE_8BIT_S1
9964 /* 16-bit on, but not optimized for speed. */
9965 reloc
= R_NDS32_9_PCREL_RELA
;
9967 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
9970 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
9975 reloc
= R_NDS32_25_PCREL_RELA
;
9977 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9980 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
9985 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9987 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9989 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
9991 insn16
= NDS32_NOP16
;
9992 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9994 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9996 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10002 /* Revert condition branch. This function does not check if the input
10003 instruction is condition branch or not. */
10006 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
10007 uint16_t *re_insn16
, uint32_t *re_insn
)
10009 uint32_t comp_insn
= 0;
10010 uint16_t comp_insn16
= 0;
10014 if (N32_OP6 (insn
) == N32_OP6_BR1
)
10017 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
10018 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
10020 /* Insn can be contracted to 16-bit implied r5. */
10022 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
10023 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10026 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
10028 /* bnec $ta, imm11, label. */
10029 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
10033 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
10034 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
10035 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
10037 if (N32_IS_RT3 (insn
))
10039 /* Insn can be contracted to 16-bit. */
10041 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
10042 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10044 else if (N32_RT5 (insn
) == REG_R15
)
10046 /* Insn can be contracted to 16-bit. */
10048 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
10055 switch ((insn16
& 0xf000) >> 12)
10058 /* beqz38 or bnez38 */
10059 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10060 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
10061 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
10065 /* beqs38 or bnes38 */
10066 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10067 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
10068 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
10073 /* beqzS8 or bnezS8 */
10074 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
10075 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
10076 comp_insn
|= REG_R15
<< 20;
10083 if (comp_insn
&& re_insn
)
10084 *re_insn
= comp_insn
;
10085 if (comp_insn16
&& re_insn16
)
10086 *re_insn16
= comp_insn16
;
10089 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
10092 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10093 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10094 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10095 Elf_Internal_Shdr
*symtab_hdr
)
10097 /* There are 3 variations for LONGJUMP2
10098 case 2-4; 1st insn convertible, 16-bit on,
10099 optimize off or optimize for space
10100 bnes38 rt, ra, $1 ; LONGJUMP2
10104 case 4-4; 1st insn not convertible
10105 bne rt, ra, $1 ; LONGJUMP2
10109 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10110 bne rt, ra, $1 ; LONGJUMP2
10114 /* Get the reloc for the address from which the register is
10115 being loaded. This reloc will tell us which function is
10116 actually being called. */
10119 int seq_len
; /* Original length of instruction sequence. */
10120 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
10123 bfd_signed_vma foff
;
10124 uint32_t insn
, re_insn
= 0;
10125 uint16_t insn16
, re_insn16
= 0;
10126 unsigned long reloc
, cond_reloc
;
10128 enum elf_nds32_reloc_type checked_types
[] =
10129 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10131 irelend
= internal_relocs
+ sec
->reloc_count
;
10132 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10133 laddr
= irel
->r_offset
;
10134 *insn_len
= seq_len
;
10135 first_size
= (seq_len
== 6) ? 2 : 4;
10138 find_relocs_at_address_addr (irel
, internal_relocs
,
10139 irelend
, R_NDS32_25_PCREL_RELA
,
10140 laddr
+ first_size
);
10142 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10145 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10146 checked_types
[i
], laddr
);
10147 if (cond_irelfn
!= irelend
)
10151 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
10153 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP2",
10154 (uint64_t) irel
->r_offset
);
10158 /* Get the value of the symbol referred to by the reloc. */
10159 foff
= calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
);
10161 || foff
< -CONSERVATIVE_16BIT_S1
10162 || foff
>= CONSERVATIVE_16BIT_S1
)
10165 /* Get the all corresponding instructions. */
10166 if (first_size
== 4)
10168 insn
= bfd_getb32 (contents
+ laddr
);
10169 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10173 insn16
= bfd_getb16 (contents
+ laddr
);
10174 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10177 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
10178 && foff
< ACCURATE_8BIT_S1
- first_size
)
10180 if (first_size
== 4)
10182 /* Don't convert it to 16-bit now, keep this as relaxable for
10183 ``label reloc; INSN16''. */
10185 /* Save comp_insn32 to buffer. */
10186 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10188 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10189 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10190 cond_reloc
= R_NDS32_INSN16
;
10194 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10196 reloc
= R_NDS32_9_PCREL_RELA
;
10197 cond_reloc
= R_NDS32_NONE
;
10200 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10201 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10202 && foff
< ACCURATE_14BIT_S1
- first_size
))
10204 /* beqs label ; 15_PCREL */
10205 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10207 reloc
= R_NDS32_15_PCREL_RELA
;
10208 cond_reloc
= R_NDS32_NONE
;
10210 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10211 && foff
>= -CONSERVATIVE_16BIT_S1
10212 && foff
< CONSERVATIVE_16BIT_S1
)
10214 /* beqz label ; 17_PCREL */
10215 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10217 reloc
= R_NDS32_17_PCREL_RELA
;
10218 cond_reloc
= R_NDS32_NONE
;
10223 /* Set all relocations. */
10224 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
10225 irel
->r_addend
= i2_irelfn
->r_addend
;
10227 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10229 cond_irelfn
->r_addend
= 0;
10231 if ((seq_len
^ *insn_len
) & 0x2)
10233 insn16
= NDS32_NOP16
;
10234 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
10235 i2_irelfn
->r_offset
= 4;
10236 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10238 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10242 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10247 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
10250 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10251 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10252 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10253 Elf_Internal_Shdr
*symtab_hdr
)
10255 /* There are 5 variations for LONGJUMP3
10256 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
10257 optimize off or optimize for space
10258 bnes38 rt, ra, $1 ; LONGJUMP3
10259 sethi ta, hi20(symbol) ; HI20
10260 ori ta, ta, lo12(symbol) ; LO12S0
10264 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
10265 bnes38 rt, ra, $1 ; LONGJUMP3
10266 sethi ta, hi20(symbol) ; HI20
10267 ori ta, ta, lo12(symbol) ; LO12S0
10271 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
10272 optimize off or optimize for space
10273 bne rt, ra, $1 ; LONGJUMP3
10274 sethi ta, hi20(symbol) ; HI20
10275 ori ta, ta, lo12(symbol) ; LO12S0
10279 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
10280 16-bit off if no INSN16
10281 bne rt, ra, $1 ; LONGJUMP3
10282 sethi ta, hi20(symbol) ; HI20
10283 ori ta, ta, lo12(symbol) ; LO12S0
10287 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
10288 16-bit off if no INSN16
10289 bne rt, ra, $1 ; LONGJUMP3
10290 sethi ta, hi20(symbol) ; HI20
10291 ori ta, ta, lo12(symbol) ; LO12S0
10295 /* Get the reloc for the address from which the register is
10296 being loaded. This reloc will tell us which function is
10297 actually being called. */
10298 enum elf_nds32_reloc_type checked_types
[] =
10299 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10301 int reloc_off
= 0, cond_removed
= 0, convertible
;
10303 int seq_len
; /* Original length of instruction sequence. */
10304 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
10307 bfd_signed_vma foff
;
10308 uint32_t insn
, re_insn
= 0;
10309 uint16_t insn16
, re_insn16
= 0;
10310 unsigned long reloc
, cond_reloc
;
10312 irelend
= internal_relocs
+ sec
->reloc_count
;
10313 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10314 laddr
= irel
->r_offset
;
10315 *insn_len
= seq_len
;
10317 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
10324 /* Get all needed relocations. */
10326 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10327 R_NDS32_HI20_RELA
, laddr
+ first_size
);
10329 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10330 R_NDS32_LO12S0_ORI_RELA
,
10331 laddr
+ first_size
+ 4);
10333 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10336 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10337 checked_types
[i
], laddr
);
10338 if (cond_irelfn
!= irelend
)
10342 if (hi_irelfn
== irelend
10343 || lo_irelfn
== irelend
10344 || cond_irelfn
== irelend
)
10346 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP3",
10347 (uint64_t) irel
->r_offset
);
10351 /* Get the value of the symbol referred to by the reloc. */
10352 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10355 || foff
< -CONSERVATIVE_24BIT_S1
10356 || foff
>= CONSERVATIVE_24BIT_S1
)
10359 /* Get the all corresponding instructions. */
10360 if (first_size
== 4)
10362 insn
= bfd_getb32 (contents
+ laddr
);
10363 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10367 insn16
= bfd_getb16 (contents
+ laddr
);
10368 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10371 /* For simplicity of coding, we are going to modify the section
10372 contents, the section relocs, and the BFD symbol table. We
10373 must tell the rest of the code not to free up this
10374 information. It would be possible to instead create a table
10375 of changes which have to be made, as is done in coff-mips.c;
10376 that would be more work, but would require less memory when
10377 the linker is run. */
10380 && foff
>= -ACCURATE_8BIT_S1
- first_size
10381 && foff
< ACCURATE_8BIT_S1
- first_size
)
10383 if (!(seq_len
& 0x2))
10385 /* Don't convert it to 16-bit now, keep this as relaxable
10386 for ``label reloc; INSN1a''6. */
10387 /* Save comp_insn32 to buffer. */
10388 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10390 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10391 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10392 cond_reloc
= R_NDS32_INSN16
;
10396 /* Not optimize for speed; convert sequence to 16-bit. */
10397 /* Save comp_insn16 to buffer. */
10398 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10400 reloc
= R_NDS32_9_PCREL_RELA
;
10401 cond_reloc
= R_NDS32_NONE
;
10405 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10406 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10407 && foff
< ACCURATE_14BIT_S1
- first_size
))
10409 /* beqs label ; 15_PCREL */
10410 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10412 reloc
= R_NDS32_15_PCREL_RELA
;
10413 cond_reloc
= R_NDS32_NONE
;
10416 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10417 && foff
>= -CONSERVATIVE_16BIT_S1
10418 && foff
< CONSERVATIVE_16BIT_S1
)
10420 /* beqz label ; 17_PCREL */
10421 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10423 reloc
= R_NDS32_17_PCREL_RELA
;
10424 cond_reloc
= R_NDS32_NONE
;
10427 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10428 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10430 /* Relax to one of the following 3 variations
10432 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
10434 bnes38 rt, $1 ; LONGJUMP2
10438 case 4-4; 1st insn not convertible, others don't care
10439 bne rt, ra, $1 ; LONGJUMP2
10443 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10444 bne rt, ra, $1 ; LONGJUMP2
10448 /* Offset for first instruction. */
10450 /* Use j label as second instruction. */
10451 *insn_len
= 4 + first_size
;
10453 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
10454 reloc
= R_NDS32_LONGJUMP2
;
10455 cond_reloc
= R_NDS32_25_PLTREL
;
10460 if (cond_removed
== 1)
10462 /* Set all relocations. */
10463 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10464 irel
->r_addend
= hi_irelfn
->r_addend
;
10466 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10468 cond_irelfn
->r_addend
= 0;
10469 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10474 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10475 irel
->r_addend
= irel
->r_addend
;
10476 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10480 if ((seq_len
^ *insn_len
) & 0x2)
10482 insn16
= NDS32_NOP16
;
10483 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10484 lo_irelfn
->r_offset
= *insn_len
;
10485 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10487 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10491 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10496 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
10499 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10500 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10501 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10502 Elf_Internal_Shdr
*symtab_hdr
)
10504 /* The pattern for LONGCALL4. Support for function cse.
10505 sethi ta, hi20(symbol) ; LONGCALL4/HI20
10506 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10507 jral ta ; PTR_RES/EMPTY/INSN16 */
10511 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
10512 Elf_Internal_Rela
*irelend
;
10513 bfd_signed_vma foff
;
10515 irelend
= internal_relocs
+ sec
->reloc_count
;
10516 laddr
= irel
->r_offset
;
10518 /* Get the reloc for the address from which the register is
10519 being loaded. This reloc will tell us which function is
10520 actually being called. */
10521 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10522 R_NDS32_HI20_RELA
, laddr
);
10524 if (hi_irel
== irelend
)
10526 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10527 (uint64_t) irel
->r_offset
);
10531 /* Get the value of the symbol referred to by the reloc. */
10532 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10534 /* This condition only happened when symbol is undefined. */
10536 || foff
< -CONSERVATIVE_24BIT_S1
10537 || foff
>= CONSERVATIVE_24BIT_S1
)
10540 /* Relax to: jal symbol; 25_PCREL. */
10541 /* For simplicity of coding, we are going to modify the section
10542 contents, the section relocs, and the BFD symbol table. We
10543 must tell the rest of the code not to free up this
10544 information. It would be possible to instead create a table
10545 of changes which have to be made, as is done in coff-mips.c;
10546 that would be more work, but would require less memory when
10547 the linker is run. */
10549 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10550 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10551 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10552 R_NDS32_EMPTY
, irel
->r_addend
);
10554 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10556 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10557 (uint64_t) irel
->r_offset
);
10560 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10561 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10562 if (insn
& 0x80000000)
10565 /* Replace the long call with a jal. */
10566 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10567 R_NDS32_25_PCREL_RELA
);
10568 ptr_irel
->r_addend
= 1;
10570 /* We don't resolve this here but resolve it in relocate_section. */
10572 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10575 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10577 /* If there is function cse, HI20 can not remove now. */
10578 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10579 R_NDS32_LONGCALL4
, laddr
);
10580 if (call_irel
== irelend
)
10584 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10587 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10588 R_NDS32_INSN16
, irel
->r_addend
);
10589 if (insn_irel
!= irelend
)
10590 insn_irel
->r_info
=
10591 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10596 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10599 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10600 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10601 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10602 Elf_Internal_Shdr
*symtab_hdr
)
10604 /* The pattern for LONGCALL5.
10605 bltz rt, .L1 ; LONGCALL5/17_PCREL
10606 jal symbol ; 25_PCREL
10611 Elf_Internal_Rela
*cond_irel
, *irelend
;
10612 bfd_signed_vma foff
;
10614 irelend
= internal_relocs
+ sec
->reloc_count
;
10615 laddr
= irel
->r_offset
;
10616 insn
= bfd_getb32 (contents
+ laddr
);
10618 /* Get the reloc for the address from which the register is
10619 being loaded. This reloc will tell us which function is
10620 actually being called. */
10622 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10623 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10624 if (cond_irel
== irelend
)
10626 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL5",
10627 (uint64_t) irel
->r_offset
);
10631 /* Get the value of the symbol referred to by the reloc. */
10632 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10635 || foff
< -CONSERVATIVE_16BIT_S1
10636 || foff
>= CONSERVATIVE_16BIT_S1
)
10639 /* Relax to bgezal rt, label ; 17_PCREL
10640 or bltzal rt, label ; 17_PCREL. */
10642 /* Convert to complimentary conditional call. */
10643 insn
= CONVERT_CONDITION_CALL (insn
);
10645 /* For simplicity of coding, we are going to modify the section
10646 contents, the section relocs, and the BFD symbol table. We
10647 must tell the rest of the code not to free up this
10648 information. It would be possible to instead create a table
10649 of changes which have to be made, as is done in coff-mips.c;
10650 that would be more work, but would require less memory when
10651 the linker is run. */
10653 /* Modify relocation and contents. */
10654 cond_irel
->r_info
=
10655 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10657 /* Replace the long call with a bgezal. */
10658 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10661 /* Clean unnessary relocations. */
10662 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10664 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10665 R_NDS32_17_PCREL_RELA
, laddr
);
10666 cond_irel
->r_info
=
10667 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10672 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10675 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10676 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10677 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10678 Elf_Internal_Shdr
*symtab_hdr
)
10680 /* The pattern for LONGCALL6.
10681 bltz rt, .L1 ; LONGCALL6/17_PCREL
10682 sethi ta, hi20(symbol) ; HI20/PTR
10683 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10684 jral ta ; PTR_RES/EMPTY/INSN16
10689 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10690 bfd_signed_vma foff
;
10692 irelend
= internal_relocs
+ sec
->reloc_count
;
10693 laddr
= irel
->r_offset
;
10695 /* Get the reloc for the address from which the register is
10696 being loaded. This reloc will tell us which function is
10697 actually being called. */
10698 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10699 R_NDS32_EMPTY
, irel
->r_addend
);
10701 if (em_irel
== irelend
)
10703 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL6",
10704 (uint64_t) irel
->r_offset
);
10708 /* Get the value of the symbol referred to by the reloc. */
10709 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
10712 || foff
< -CONSERVATIVE_24BIT_S1
10713 || foff
>= CONSERVATIVE_24BIT_S1
)
10716 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10717 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10718 if (insn
& 0x80000000)
10721 insn
= bfd_getb32 (contents
+ laddr
);
10722 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10724 /* Relax to bgezal rt, label ; 17_PCREL
10725 or bltzal rt, label ; 17_PCREL. */
10727 /* Convert to complimentary conditional call. */
10729 insn
= CONVERT_CONDITION_CALL (insn
);
10730 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10733 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10735 /* Set resolved relocation. */
10737 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10738 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10739 if (cond_irel
== irelend
)
10741 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10742 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10745 cond_irel
->r_addend
= 1;
10747 /* Clear relocations. */
10750 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10753 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10754 R_NDS32_17_PCREL_RELA
, laddr
);
10755 if (cond_irel
!= irelend
)
10756 cond_irel
->r_info
=
10757 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10760 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10761 R_NDS32_INSN16
, irel
->r_addend
);
10762 if (cond_irel
!= irelend
)
10763 cond_irel
->r_info
=
10764 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10767 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10769 /* Relax to the following instruction sequence
10770 bltz rt, .L1 ; LONGCALL2/17_PCREL
10771 jal symbol ; 25_PCREL/PTR_RES
10774 /* Convert instruction. */
10776 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10778 /* Convert relocations. */
10779 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10780 R_NDS32_25_PCREL_RELA
);
10782 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10784 /* Set resolved relocation. */
10786 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10787 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10788 if (cond_irel
== irelend
)
10790 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10791 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10794 cond_irel
->r_addend
= 1;
10797 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10798 R_NDS32_INSN16
, irel
->r_addend
);
10799 if (cond_irel
!= irelend
)
10800 cond_irel
->r_info
=
10801 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10806 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10809 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10810 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10811 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10812 Elf_Internal_Shdr
*symtab_hdr
)
10814 /* The pattern for LONGJUMP4.
10815 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10816 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10817 jr ta ; PTR_RES/INSN16/EMPTY */
10820 int seq_len
; /* Original length of instruction sequence. */
10822 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10823 bfd_signed_vma foff
;
10825 irelend
= internal_relocs
+ sec
->reloc_count
;
10826 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10827 laddr
= irel
->r_offset
;
10828 *insn_len
= seq_len
;
10830 /* Get the reloc for the address from which the register is
10831 being loaded. This reloc will tell us which function is
10832 actually being called. */
10834 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10835 R_NDS32_HI20_RELA
, laddr
);
10837 if (hi_irel
== irelend
)
10839 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10840 (uint64_t) irel
->r_offset
);
10844 /* Get the value of the symbol referred to by the reloc. */
10845 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10848 || foff
>= CONSERVATIVE_24BIT_S1
10849 || foff
< -CONSERVATIVE_24BIT_S1
)
10852 /* Convert it to "j label", it may be converted to j8 in the final
10853 pass of relaxation. Therefore, we do not consider this currently. */
10854 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10855 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10856 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10857 R_NDS32_EMPTY
, irel
->r_addend
);
10859 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10861 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10862 (uint64_t) irel
->r_offset
);
10867 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10868 ptr_irel
->r_addend
= 1;
10870 /* Write instruction. */
10872 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10874 /* Clear relocations. */
10875 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10877 /* If there is function cse, HI20 can not remove now. */
10878 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10879 R_NDS32_LONGJUMP4
, laddr
);
10880 if (call_irel
== irelend
)
10884 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10890 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10893 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10894 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10895 int *seq_len
, bfd_byte
*contents
,
10896 Elf_Internal_Sym
*isymbuf
,
10897 Elf_Internal_Shdr
*symtab_hdr
)
10899 /* There are 2 variations for LONGJUMP5
10900 case 2-4; 1st insn convertible, 16-bit on.
10901 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10902 j label ; 25_PCREL/INSN16
10905 case 4-4; 1st insn not convertible
10906 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10907 j label ; 25_PCREL/INSN16
10911 Elf_Internal_Rela
*cond_irel
, *irelend
;
10913 bfd_signed_vma foff
;
10914 uint32_t insn
, re_insn
= 0;
10915 uint16_t insn16
, re_insn16
= 0;
10916 unsigned long reloc
;
10918 enum elf_nds32_reloc_type checked_types
[] =
10919 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10920 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10922 irelend
= internal_relocs
+ sec
->reloc_count
;
10923 laddr
= irel
->r_offset
;
10925 /* Get the reloc for the address from which the register is
10926 being loaded. This reloc will tell us which function is
10927 actually being called. */
10930 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10931 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10932 if (cond_irel
== irelend
)
10934 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP5",
10935 (uint64_t) irel
->r_offset
);
10939 /* Get the value of the symbol referred to by the reloc. */
10940 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10943 || foff
< -CONSERVATIVE_16BIT_S1
10944 || foff
>= CONSERVATIVE_16BIT_S1
)
10947 /* Get the all corresponding instructions. */
10948 insn
= bfd_getb32 (contents
+ laddr
);
10949 /* Check instruction size. */
10950 if (insn
& 0x80000000)
10953 insn16
= insn
>> 16;
10954 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10957 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10959 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10960 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10962 /* beqs label ; 15_PCREL. */
10963 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10964 reloc
= R_NDS32_15_PCREL_RELA
;
10966 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10967 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10969 /* beqz label ; 17_PCREL. */
10970 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10971 reloc
= R_NDS32_17_PCREL_RELA
;
10973 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
10974 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
10976 /* beqc label ; 9_PCREL. */
10977 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10978 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
10983 /* Set all relocations. */
10984 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
10986 /* Clean relocations. */
10987 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10988 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10990 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10991 checked_types
[i
], laddr
);
10992 if (cond_irel
!= irelend
)
10995 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10997 /* If the branch instruction is 2 byte, it cannot remove
10998 directly. Only convert it to nop16 and remove it after
10999 checking alignment issue. */
11000 insn16
= NDS32_NOP16
;
11001 bfd_putb16 (insn16
, contents
+ laddr
);
11002 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11005 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11014 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
11017 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11018 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11019 int *seq_len
, bfd_byte
*contents
,
11020 Elf_Internal_Sym
*isymbuf
,
11021 Elf_Internal_Shdr
*symtab_hdr
)
11023 /* There are 5 variations for LONGJUMP6
11024 case : 2-4-4-4; 1st insn convertible, 16-bit on.
11025 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11026 sethi ta, hi20(symbol) ; HI20/PTR
11027 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11028 jr ta ; PTR_RES/INSN16/EMPTY
11031 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
11032 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11033 sethi ta, hi20(symbol) ; HI20/PTR
11034 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11035 jr ta ; PTR_RES/INSN16/EMPTY
11038 enum elf_nds32_reloc_type checked_types
[] =
11039 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
11040 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
11042 int reloc_off
= 0, cond_removed
= 0;
11044 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
11046 bfd_signed_vma foff
;
11047 uint32_t insn
, re_insn
= 0;
11048 uint16_t insn16
, re_insn16
= 0;
11049 unsigned long reloc
;
11051 irelend
= internal_relocs
+ sec
->reloc_count
;
11052 laddr
= irel
->r_offset
;
11054 /* Get the reloc for the address from which the register is
11055 being loaded. This reloc will tell us which function is
11056 actually being called. */
11057 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11058 R_NDS32_EMPTY
, irel
->r_addend
);
11060 if (em_irel
== irelend
)
11062 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP6",
11063 (uint64_t) irel
->r_offset
);
11067 /* Get the value of the symbol referred to by the reloc. */
11068 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
11071 || foff
< -CONSERVATIVE_24BIT_S1
11072 || foff
>= CONSERVATIVE_24BIT_S1
)
11075 insn
= bfd_getb32 (contents
+ laddr
);
11076 /* Check instruction size. */
11077 if (insn
& 0x80000000)
11080 insn16
= insn
>> 16;
11081 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11084 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11086 /* For simplicity of coding, we are going to modify the section
11087 contents, the section relocs, and the BFD symbol table. We
11088 must tell the rest of the code not to free up this
11089 information. It would be possible to instead create a table
11090 of changes which have to be made, as is done in coff-mips.c;
11091 that would be more work, but would require less memory when
11092 the linker is run. */
11094 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11095 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11097 /* beqs label ; 15_PCREL. */
11098 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11099 reloc
= R_NDS32_15_PCREL_RELA
;
11102 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11103 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11105 /* beqz label ; 17_PCREL. */
11106 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11107 reloc
= R_NDS32_17_PCREL_RELA
;
11110 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
11111 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
11113 /* Relax to one of the following 2 variations
11115 case 2-4; 1st insn convertible, 16-bit on.
11116 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
11117 j label ; 25_PCREL/INSN16
11120 case 4-4; 1st insn not convertible
11121 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
11122 j label ; 25_PCREL/INSN16
11125 /* Use j label as second instruction. */
11127 reloc
= R_NDS32_25_PCREL_RELA
;
11128 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
11133 /* Set all relocations. */
11134 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
11137 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11138 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
11139 cond_irel
->r_addend
= 1;
11141 /* Use INSN16 of first branch instruction to distinguish if keeping
11142 INSN16 of final instruction or not. */
11143 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11144 R_NDS32_INSN16
, irel
->r_offset
);
11145 if (insn_irel
== irelend
)
11147 /* Clean the final INSN16. */
11149 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11150 R_NDS32_INSN16
, em_irel
->r_offset
);
11151 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11155 if (cond_removed
== 1)
11159 /* Clear relocations. */
11160 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11162 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11165 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11166 checked_types
[i
], laddr
);
11167 if (cond_irel
!= irelend
)
11170 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11172 /* If the branch instruction is 2 byte, it cannot remove
11173 directly. Only convert it to nop16 and remove it after
11174 checking alignment issue. */
11175 insn16
= NDS32_NOP16
;
11176 bfd_putb16 (insn16
, contents
+ laddr
);
11177 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11180 cond_irel
->r_info
=
11181 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
11187 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11188 R_NDS32_LONGJUMP5
);
11194 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
11197 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11198 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11199 int *seq_len
, bfd_byte
*contents
,
11200 Elf_Internal_Sym
*isymbuf
,
11201 Elf_Internal_Shdr
*symtab_hdr
)
11203 /* There are 2 variations for LONGJUMP5
11204 case 2-4; 1st insn convertible, 16-bit on.
11205 movi55 ta, imm11 ; LONGJUMP7/INSN16
11206 beq rt, ta, label ; 15_PCREL
11208 case 4-4; 1st insn not convertible
11209 movi55 ta, imm11 ; LONGJUMP7/INSN16
11210 beq rt, ta, label ; 15_PCREL */
11213 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
11214 bfd_signed_vma foff
;
11215 uint32_t insn
, re_insn
= 0;
11219 irelend
= internal_relocs
+ sec
->reloc_count
;
11220 laddr
= irel
->r_offset
;
11222 /* Get the reloc for the address from which the register is
11223 being loaded. This reloc will tell us which function is
11224 actually being called. */
11227 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11228 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
11229 if (cond_irel
== irelend
)
11231 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP7",
11232 (uint64_t) irel
->r_offset
);
11236 /* Get the value of the symbol referred to by the reloc. */
11237 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11240 || foff
< -CONSERVATIVE_8BIT_S1
11241 || foff
>= CONSERVATIVE_8BIT_S1
)
11244 /* Get the first instruction for its size. */
11245 insn
= bfd_getb32 (contents
+ laddr
);
11246 if (insn
& 0x80000000)
11249 /* Get the immediate from movi55. */
11250 imm11
= N16_IMM5S (insn
>> 16);
11254 /* Get the immediate from movi. */
11255 imm11
= N32_IMM20S (insn
);
11258 /* Get the branch instruction. */
11259 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
11260 /* Convert instruction to BR3. */
11261 if ((insn
>> 14) & 0x1)
11262 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
11264 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
11266 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11268 /* Set all relocations. */
11269 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11270 R_NDS32_WORD_9_PCREL_RELA
);
11272 /* Clean relocations. */
11273 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11274 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11275 R_NDS32_INSN16
, irel
->r_offset
);
11276 if (insn_irel
!= irelend
)
11280 /* If the first insntruction is 16bit, convert it to nop16. */
11281 insn16
= NDS32_NOP16
;
11282 bfd_putb16 (insn16
, contents
+ laddr
);
11283 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11286 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11294 /* We figure out and reassign the best gp value in nds32_elf_final_sda_base
11295 for each relax round. But the gp may changed dramatically and then cause
11296 the truncated to fit errors for the the converted gp instructions.
11297 Therefore, we must reserve the minimum but safe enough size to prevent it. */
11300 nds32_elf_relax_guard (bfd_vma
*access_addr
, bfd_vma local_sda
, asection
*sec
,
11301 Elf_Internal_Rela
*irel
, bfd_boolean
*again
,
11303 struct elf_nds32_link_hash_table
*table
,
11304 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
11308 static bfd_boolean sec_pass
= FALSE
;
11309 static asection
*first_sec
= NULL
, *sym_sec
;
11310 /* Record the number of instructions which may be removed. */
11311 static int count
= 0, record_count
;
11312 Elf_Internal_Sym
*isym
;
11313 struct elf_link_hash_entry
*h
= NULL
;
11315 unsigned long r_symndx
;
11316 bfd
*abfd
= sec
->owner
;
11317 static bfd_vma record_sda
= 0;
11318 int sda_offset
= 0;
11320 /* Force doing relaxation when hyper-relax is high. */
11321 if (table
->hyper_relax
== 2)
11324 /* Do not relax the load/store patterns for the first
11330 else if (first_sec
== sec
)
11332 record_count
= count
;
11343 /* Generally, _SDA_BASE_ is fixed or smaller. But the large
11344 DATA_SEGMENT_ALIGN size in the linker script may make it
11345 get even bigger. */
11346 if (record_sda
== 0)
11347 record_sda
= local_sda
;
11348 else if (local_sda
> record_sda
)
11349 sda_offset
= local_sda
- record_sda
;
11351 /* Assume the instruction will be removed in the best case. */
11354 /* We record the offset to gp for each symbol, and then check
11355 if it is changed dramatically after relaxing.
11356 (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp
11357 (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */
11358 r_symndx
= ELF32_R_SYM (irel
->r_info
);
11359 if (r_symndx
>= symtab_hdr
->sh_info
)
11361 /* Global symbols. */
11362 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11363 h
= elf_sym_hashes (abfd
)[indx
];
11364 sym_sec
= h
->root
.u
.def
.section
;
11365 if (NDS32_GUARD_SEC_P (sym_sec
->flags
)
11366 || bfd_is_abs_section (sym_sec
))
11368 /* Forbid doing relaxation when hyper-relax is low. */
11369 if (table
->hyper_relax
== 0)
11372 offset_to_gp
= *access_addr
- local_sda
;
11373 if (elf32_nds32_hash_entry (h
)->offset_to_gp
== 0)
11374 elf32_nds32_hash_entry (h
)->offset_to_gp
= offset_to_gp
;
11375 else if (abs (elf32_nds32_hash_entry (h
)->offset_to_gp
)
11376 < abs (offset_to_gp
) - sda_offset
)
11378 /* This may cause the error, so we reserve the
11379 safe enough size for relaxing. */
11380 if (*access_addr
>= local_sda
)
11381 *access_addr
+= (record_count
* 4);
11383 *access_addr
-= (record_count
* 4);
11390 /* Local symbols. */
11391 if (!elf32_nds32_allocate_local_sym_info (abfd
))
11393 isym
= isymbuf
+ r_symndx
;
11395 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
11396 if (NDS32_GUARD_SEC_P (sym_sec
->flags
))
11398 /* Forbid doing relaxation when hyper-relax is low. */
11399 if (table
->hyper_relax
== 0)
11402 offset_to_gp
= *access_addr
- local_sda
;
11403 if (elf32_nds32_local_gp_offset (abfd
)[r_symndx
] == 0)
11404 elf32_nds32_local_gp_offset (abfd
)[r_symndx
] = offset_to_gp
;
11405 else if (abs (elf32_nds32_local_gp_offset (abfd
)[r_symndx
])
11406 < abs (offset_to_gp
) - sda_offset
)
11408 /* This may cause the error, so we reserve the
11409 safe enough size for relaxing. */
11410 if (*access_addr
>= local_sda
)
11411 *access_addr
+= (record_count
* 4);
11413 *access_addr
-= (record_count
* 4);
11422 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
11424 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
11427 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
11428 asection
*sec
, Elf_Internal_Rela
*irel
,
11429 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11430 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11431 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
,
11432 struct elf_nds32_link_hash_table
*table
)
11434 int eliminate_sethi
= 0, range_type
;
11436 bfd_vma local_sda
, laddr
;
11437 int seq_len
; /* Original length of instruction sequence. */
11439 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
11440 bfd_vma access_addr
= 0;
11441 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11442 struct elf_link_hash_entry
*h
= NULL
;
11444 enum elf_nds32_reloc_type checked_types
[] =
11445 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
11446 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
11447 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
11448 R_NDS32_TLS_LE_HI20
11451 irelend
= internal_relocs
+ sec
->reloc_count
;
11452 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
11453 laddr
= irel
->r_offset
;
11454 *insn_len
= seq_len
;
11456 /* Get the high part relocation. */
11457 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11459 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11460 checked_types
[i
], laddr
);
11461 if (hi_irelfn
!= irelend
)
11465 if (hi_irelfn
== irelend
)
11467 /* Not R_NDS32_HI20_RELA. */
11469 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LOADSTORE",
11470 (uint64_t) irel
->r_offset
);
11474 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
11475 nds32_elf_final_sda_base (sec
->output_section
->owner
,
11476 link_info
, &local_sda
, FALSE
);
11478 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
11480 case R_NDS32_HI20_RELA
:
11481 insn
= bfd_getb32 (contents
+ laddr
);
11483 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
11485 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
11487 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
11488 h
= elf_sym_hashes (abfd
)[indx
];
11492 if (range_type
== NDS32_LOADSTORE_IMM
11493 && access_addr
< CONSERVATIVE_20BIT
11494 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11496 eliminate_sethi
= 1;
11500 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11502 eliminate_sethi
= 1;
11505 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, hi_irelfn
,
11506 NULL
, FALSE
, table
, isymbuf
, symtab_hdr
))
11509 if (!load_store_relax
)
11512 /* Case for set gp register. */
11513 if (N32_RT5 (insn
) == REG_GP
)
11516 if (range_type
== NDS32_LOADSTORE_FLOAT_S
11517 || range_type
== NDS32_LOADSTORE_FLOAT_D
)
11519 range_l
= sdata_range
[0][0];
11520 range_h
= sdata_range
[0][1];
11524 range_l
= sdata_range
[1][0];
11525 range_h
= sdata_range
[1][1];
11533 /* Delete sethi instruction. */
11534 if (eliminate_sethi
== 1
11535 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11536 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11538 hi_irelfn
->r_info
=
11539 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
11541 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11549 /* Relax LO12 relocation for nds32_elf_relax_section. */
11552 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11553 asection
*sec
, Elf_Internal_Rela
*irel
,
11554 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
11555 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
11556 struct elf_nds32_link_hash_table
*table
)
11559 bfd_vma local_sda
, laddr
;
11560 unsigned long reloc
;
11561 bfd_vma access_addr
;
11562 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11563 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
11564 struct elf_link_hash_entry
*h
= NULL
;
11567 /* For SDA base relative relaxation. */
11568 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11569 &local_sda
, FALSE
);
11571 irelend
= internal_relocs
+ sec
->reloc_count
;
11572 laddr
= irel
->r_offset
;
11573 insn
= bfd_getb32 (contents
+ laddr
);
11575 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
11578 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11580 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
11582 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11583 h
= elf_sym_hashes (abfd
)[indx
];
11587 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
11588 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11590 reloc
= R_NDS32_20_RELA
;
11591 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11592 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11593 bfd_putb32 (insn
, contents
+ laddr
);
11597 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11599 /* Fall through. */
11601 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, irel
, NULL
,
11602 FALSE
, table
, isymbuf
, symtab_hdr
))
11605 range_l
= sdata_range
[1][0];
11606 range_h
= sdata_range
[1][1];
11607 switch (ELF32_R_TYPE (irel
->r_info
))
11609 case R_NDS32_LO12S0_RELA
:
11610 reloc
= R_NDS32_SDA19S0_RELA
;
11612 case R_NDS32_LO12S1_RELA
:
11613 reloc
= R_NDS32_SDA18S1_RELA
;
11615 case R_NDS32_LO12S2_RELA
:
11616 reloc
= R_NDS32_SDA17S2_RELA
;
11618 case R_NDS32_LO12S2_DP_RELA
:
11619 range_l
= sdata_range
[0][0];
11620 range_h
= sdata_range
[0][1];
11621 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11623 case R_NDS32_LO12S2_SP_RELA
:
11624 range_l
= sdata_range
[0][0];
11625 range_h
= sdata_range
[0][1];
11626 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11632 /* There are range_h and range_l because linker has to promise
11633 all sections move cross one page together. */
11634 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11635 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
)
11636 || (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0))
11638 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11640 /* Maybe we should add R_NDS32_INSN16 reloc type here
11641 or manually do some optimization. sethi can't be
11642 eliminated when updating $gp so the relative ori
11643 needs to be preserved. */
11646 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11649 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11650 bfd_putb32 (insn
, contents
+ laddr
);
11652 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11654 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11655 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11657 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11664 /* Relax PTR relocation for nds32_elf_relax_section. */
11667 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11668 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11669 int *seq_len
, bfd_byte
*contents
)
11671 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11673 irelend
= internal_relocs
+ sec
->reloc_count
;
11676 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11677 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11679 if (re_irel
== irelend
)
11681 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_PTR",
11682 (uint64_t) irel
->r_offset
);
11686 if (re_irel
->r_addend
!= 1)
11689 /* Pointed target is relaxed and no longer needs this void *,
11690 change the type to NONE. */
11691 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11693 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11694 not exist, it means only count 1 and remove it directly. */
11695 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11696 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11697 R_NDS32_PTR_COUNT
);
11698 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11700 if (count_irel
!= irelend
)
11702 if (--count_irel
->r_addend
> 0)
11706 if (ptr_irel
!= irelend
)
11709 /* If the PTR_COUNT is already 0, remove current instruction. */
11710 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11715 /* Relax LWC relocation for nds32_elf_relax_section. */
11718 nds32_elf_relax_flsi (struct bfd_link_info
*link_info
, bfd
*abfd
,
11719 asection
*sec
, Elf_Internal_Rela
*irel
,
11720 Elf_Internal_Rela
*internal_relocs
,
11721 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11722 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11725 sethi ra, hi20(symbol) ; HI20/LOADSTORE
11726 ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16
11727 flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16
11728 flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16
11732 bfd_vma local_sda
, laddr
;
11733 unsigned long reloc
;
11734 bfd_vma access_addr
, flsi_offset
;
11735 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11736 Elf_Internal_Rela
*irelend
, *re_irel
;
11737 unsigned int opcode
;
11739 irelend
= internal_relocs
+ sec
->reloc_count
;
11740 laddr
= irel
->r_offset
;
11741 insn
= bfd_getb32 (contents
+ laddr
);
11743 if ((insn
& 0x80000000) || !is_sda_access_insn (insn
))
11746 /* Can not do relaxation for bi format. */
11747 if ((insn
& 0x1000))
11750 /* Only deal with flsi, fssi, fldi, fsdi, so far. */
11751 opcode
= N32_OP6 (insn
);
11752 if ((opcode
== N32_OP6_LWC
) || (opcode
== N32_OP6_SWC
))
11753 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11754 else if ((opcode
== N32_OP6_LDC
) || (opcode
== N32_OP6_SDC
))
11755 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11759 re_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11760 R_NDS32_PTR_RESOLVED
);
11761 if (re_irel
== irelend
)
11763 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LSI",
11764 (uint64_t) irel
->r_offset
);
11768 /* For SDA base relative relaxation. */
11769 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11770 &local_sda
, FALSE
);
11771 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11772 flsi_offset
= (insn
& 0xfff) << 2;
11773 access_addr
+= flsi_offset
;
11774 range_l
= sdata_range
[0][0];
11775 range_h
= sdata_range
[0][1];
11777 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11778 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11780 /* Turn flsi instruction into sda access format. */
11781 insn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
11783 /* Add relocation type to flsi. */
11784 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11785 irel
->r_addend
+= flsi_offset
;
11786 bfd_putb32 (insn
, contents
+ re_irel
->r_offset
);
11788 re_irel
->r_addend
|= 1;
11794 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11795 Elf_Internal_Rela
*internal_relocs
,
11796 bfd_byte
*contents
,
11797 nds32_elf_blank_t
**relax_blank_list
,
11798 int optimize
, int opt_size
)
11800 /* This code block is used to adjust 4-byte alignment by relax a pair
11801 of instruction a time.
11803 It recognizes three types of relocations.
11804 1. R_NDS32_LABEL - a alignment.
11805 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11806 3. is_16bit_NOP () - remove a 16-bit instruction. */
11808 /* TODO: It seems currently implementation only support 4-byte alignment.
11809 We should handle any-alignment. */
11811 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11812 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11813 Elf_Internal_Rela rel_temp
;
11814 Elf_Internal_Rela
*irelend
;
11818 /* Checking for branch relaxation relies on the relocations to
11819 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11820 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11821 sizeof (Elf_Internal_Rela
), compar_reloc
);
11823 irelend
= internal_relocs
+ sec
->reloc_count
;
11825 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11826 /* FIXME: Can we generate the right order in assembler?
11827 So we don't have to swapping them here. */
11829 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11830 label_rel
< irelend
; label_rel
++)
11832 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11835 /* Find the first reloc has the same offset with label_rel. */
11836 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11839 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11841 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11843 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11846 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11847 && insn_rel
< label_rel
)
11849 /* Swap the two reloc if the R_NDS32_INSN16 is
11850 before R_NDS32_LABEL. */
11851 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11852 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11853 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11859 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11860 or higher, remove other R_NDS32_LABEL with lower alignment.
11861 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11862 then the R_NDS32_LABEL sequence is broke. */
11863 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11865 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11867 if (label_rel
== NULL
)
11869 if (tmp_rel
->r_addend
< 2)
11870 label_rel
= tmp_rel
;
11873 else if (tmp_rel
->r_addend
> 1)
11875 /* Remove all LABEL relocation from label_rel to tmp_rel
11876 including relocations with same offset as tmp_rel. */
11877 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
; tmp2_rel
++)
11879 if (tmp2_rel
->r_offset
== tmp_rel
->r_offset
)
11882 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11883 && tmp2_rel
->r_addend
< 2)
11885 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11891 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11893 /* A new INSN16 which can be converted, so clear label_rel. */
11894 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11896 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11903 /* Optimized for speed and nothing has not been relaxed.
11904 It's time to align labels.
11905 We may convert a 16-bit instruction right before a label to
11906 32-bit, in order to align the label if necessary
11907 all reloc entries has been sorted by r_offset. */
11908 for (irel
= internal_relocs
;
11909 irel
< irelend
&& irel
->r_offset
< sec
->size
; irel
++)
11911 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11912 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11915 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11917 /* A new INSN16 found, resize the old one. */
11918 if (is_convert_32_to_16
11919 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11920 || is_16bit_NOP (abfd
, sec
, irel
))
11924 /* Previous INSN16 reloc exists, reduce its
11926 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11929 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11930 internal_relocs
, irelend
, insn16
);
11932 if (!insert_nds32_elf_blank_recalc_total
11933 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11936 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11938 if (!insert_nds32_elf_blank_recalc_total
11939 (relax_blank_list
, insn_rel
->r_offset
, 2))
11943 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
11945 /* Save the new one for later use. */
11949 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11952 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
11954 /* Search for label. */
11955 int force_relax
= 0;
11957 /* Label on 16-bit instruction or optimization
11958 needless, just reset this reloc. */
11959 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
11960 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
11963 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11968 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
11969 irel
->r_offset
, 1);
11973 /* Check if there is case which can not be aligned. */
11974 if (irel
->r_addend
== 2 && address
& 0x2)
11979 /* Try to align this label. */
11981 if ((irel
->r_addend
& 0x1f) < 2)
11983 /* Check if there is a INSN16 at the same address.
11984 Label_rel always seats before insn_rel after
11987 /* Search for INSN16 at LABEL location. If INSN16 is at
11988 same location and this LABEL alignment is lower than 2,
11989 the INSN16 can be converted to 2-byte. */
11990 for (tmp_rel
= irel
;
11991 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
11994 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
11995 && (is_convert_32_to_16
11996 (abfd
, sec
, tmp_rel
, internal_relocs
,
11998 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
12006 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
12008 /* Label not aligned. */
12009 /* Previous reloc exists, reduce its size to 16-bit. */
12010 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
12011 internal_relocs
, irelend
, &insn16
))
12013 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
12014 internal_relocs
, irelend
, insn16
);
12016 if (!insert_nds32_elf_blank_recalc_total
12017 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12020 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12022 if (!insert_nds32_elf_blank_recalc_total
12023 (relax_blank_list
, insn_rel
->r_offset
, 2))
12028 /* INSN16 reloc is used. */
12034 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
12035 if (insn_rel
&& (address
& 0x2 || opt_size
))
12037 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
12040 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
12042 if (!insert_nds32_elf_blank_recalc_total
12043 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12045 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12048 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12050 if (!insert_nds32_elf_blank_recalc_total
12051 (relax_blank_list
, insn_rel
->r_offset
, 2))
12053 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12062 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
12063 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
12065 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12066 Elf_Internal_Shdr
*symtab_hdr
;
12067 Elf_Internal_Rela
*internal_relocs
;
12068 Elf_Internal_Rela
*irel
;
12069 Elf_Internal_Rela
*irelend
;
12070 Elf_Internal_Sym
*isymbuf
= NULL
;
12071 bfd_byte
*contents
= NULL
;
12072 bfd_boolean result
= TRUE
;
12078 /* Target dependnet option. */
12079 struct elf_nds32_link_hash_table
*table
;
12080 int load_store_relax
;
12082 relax_blank_list
= NULL
;
12086 /* Nothing to do for
12087 * relocatable link or
12088 * non-relocatable section or
12089 * non-code section or
12091 * no reloc entry. */
12092 if (bfd_link_relocatable (link_info
)
12093 || (sec
->flags
& SEC_RELOC
) == 0
12094 || (sec
->flags
& SEC_EXCLUDE
) != 0
12095 || (sec
->flags
& SEC_CODE
) == 0
12097 || sec
->reloc_count
== 0)
12100 /* 09.12.11 Workaround. */
12101 /* We have to adjust align for R_NDS32_LABEL if needed.
12102 The adjust approach only can fix 2-byte align once. */
12103 if (sec
->alignment_power
> 2)
12106 /* Do TLS model conversion once at first. */
12107 nds32_elf_unify_tls_model (abfd
, sec
, contents
, link_info
);
12109 /* The optimization type to do. */
12111 table
= nds32_elf_hash_table (link_info
);
12113 /* Save the first section for abs symbol relaxation.
12114 This is used for checking gp relaxation in the
12115 nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */
12116 nds32_elf_relax_guard (NULL
, 0, sec
, NULL
, again
, TRUE
,
12117 table
, NULL
, NULL
);
12119 /* The begining of general relaxation. */
12121 if (is_SDA_BASE_set
== 0)
12124 is_SDA_BASE_set
= 1;
12125 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12127 relax_range_measurement (abfd
);
12130 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12131 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12132 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12133 TRUE
/* keep_memory */);
12134 if (internal_relocs
== NULL
)
12137 irelend
= internal_relocs
+ sec
->reloc_count
;
12138 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12139 irelend
, R_NDS32_RELAX_ENTRY
);
12141 if (irel
== irelend
)
12144 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12146 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12149 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12152 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12156 load_store_relax
= table
->load_store_relax
;
12158 /* Get symbol table and section content. */
12159 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12160 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12163 /* Do relax loop only when finalize is not done.
12164 Take care of relaxable relocs except INSN16. */
12165 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12167 int seq_len
; /* Original length of instruction sequence. */
12168 int insn_len
= 0; /* Final length of instruction sequence. */
12169 bfd_boolean removed
;
12172 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12173 && (irel
->r_addend
& 0x1f) >= 2)
12176 /* Relocation Types
12177 R_NDS32_LONGCALL1 53
12178 R_NDS32_LONGCALL2 54
12179 R_NDS32_LONGCALL3 55
12180 R_NDS32_LONGJUMP1 56
12181 R_NDS32_LONGJUMP2 57
12182 R_NDS32_LONGJUMP3 58
12183 R_NDS32_LOADSTORE 59 */
12184 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12185 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12186 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12188 /* Relocation Types
12189 R_NDS32_LONGCALL4 107
12190 R_NDS32_LONGCALL5 108
12191 R_NDS32_LONGCALL6 109
12192 R_NDS32_LONGJUMP4 110
12193 R_NDS32_LONGJUMP5 111
12194 R_NDS32_LONGJUMP6 112
12195 R_NDS32_LONGJUMP7 113 */
12196 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12197 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12200 /* Relocation Types
12201 R_NDS32_LO12S0_RELA 30
12202 R_NDS32_LO12S1_RELA 29
12203 R_NDS32_LO12S2_RELA 28
12204 R_NDS32_LO12S2_SP_RELA 71
12205 R_NDS32_LO12S2_DP_RELA 70
12206 R_NDS32_GOT_LO12 46
12207 R_NDS32_GOTOFF_LO12 50
12208 R_NDS32_PLTREL_LO12 65
12209 R_NDS32_PLT_GOTREL_LO12 67
12210 R_NDS32_17IFC_PCREL_RELA 96
12211 R_NDS32_GOT_SUFF 193
12212 R_NDS32_GOTOFF_SUFF 194
12213 R_NDS32_PLT_GOT_SUFF 195
12214 R_NDS32_MULCALL_SUFF 196
12216 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12217 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12218 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12219 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12220 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12221 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12222 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12223 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12224 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12225 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12226 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12227 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12228 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12229 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12230 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
12231 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LSI
)
12236 insn_len
= seq_len
;
12239 switch (ELF32_R_TYPE (irel
->r_info
))
12241 case R_NDS32_LONGCALL1
:
12242 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12243 &insn_len
, contents
, isymbuf
,
12246 case R_NDS32_LONGCALL2
:
12247 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12248 &insn_len
, contents
, isymbuf
,
12251 case R_NDS32_LONGCALL3
:
12252 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12253 &insn_len
, contents
, isymbuf
,
12256 case R_NDS32_LONGJUMP1
:
12257 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12258 &insn_len
, contents
, isymbuf
,
12261 case R_NDS32_LONGJUMP2
:
12262 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12263 &insn_len
, contents
, isymbuf
,
12266 case R_NDS32_LONGJUMP3
:
12267 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12268 &insn_len
, contents
, isymbuf
,
12271 case R_NDS32_LONGCALL4
:
12272 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12273 &insn_len
, contents
, isymbuf
,
12276 case R_NDS32_LONGCALL5
:
12277 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12278 &insn_len
, contents
, isymbuf
,
12281 case R_NDS32_LONGCALL6
:
12282 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12283 &insn_len
, contents
, isymbuf
,
12286 case R_NDS32_LONGJUMP4
:
12287 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12288 &insn_len
, contents
, isymbuf
,
12291 case R_NDS32_LONGJUMP5
:
12292 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12293 &insn_len
, &seq_len
, contents
,
12294 isymbuf
, symtab_hdr
);
12296 case R_NDS32_LONGJUMP6
:
12297 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12298 &insn_len
, &seq_len
, contents
,
12299 isymbuf
, symtab_hdr
);
12301 case R_NDS32_LONGJUMP7
:
12302 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12303 &insn_len
, &seq_len
, contents
,
12304 isymbuf
, symtab_hdr
);
12306 case R_NDS32_LOADSTORE
:
12307 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12308 internal_relocs
, &insn_len
,
12309 contents
, isymbuf
, symtab_hdr
,
12310 load_store_relax
, table
);
12312 case R_NDS32_LO12S0_RELA
:
12313 case R_NDS32_LO12S1_RELA
:
12314 case R_NDS32_LO12S2_RELA
:
12315 case R_NDS32_LO12S2_DP_RELA
:
12316 case R_NDS32_LO12S2_SP_RELA
:
12317 /* Relax for low part. */
12318 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12319 contents
, isymbuf
, symtab_hdr
, table
);
12321 /* It is impossible to delete blank, so just continue. */
12324 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12325 &insn_len
, &seq_len
, contents
);
12328 nds32_elf_relax_flsi (link_info
, abfd
, sec
, irel
, internal_relocs
,
12329 contents
, isymbuf
, symtab_hdr
, again
);
12331 case R_NDS32_GOT_LO12
:
12332 case R_NDS32_GOTOFF_LO12
:
12333 case R_NDS32_PLTREL_LO12
:
12334 case R_NDS32_PLT_GOTREL_LO12
:
12335 case R_NDS32_GOTPC_LO12
:
12336 case R_NDS32_TLS_LE_LO12
:
12337 case R_NDS32_TLS_LE_ADD
:
12338 case R_NDS32_TLS_LE_LS
:
12339 case R_NDS32_PLT_GOT_SUFF
:
12340 case R_NDS32_GOT_SUFF
:
12341 case R_NDS32_GOTOFF_SUFF
:
12347 if (removed
&& seq_len
- insn_len
> 0)
12349 if (!insert_nds32_elf_blank
12350 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12351 seq_len
- insn_len
))
12357 calc_nds32_blank_total (relax_blank_list
);
12359 if (table
->relax_fp_as_gp
)
12361 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12367 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12375 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12376 &relax_blank_list
, optimize
, opt_size
))
12380 /* It doesn't matter optimize_for_space_no_align anymore.
12381 If object file is assembled with flag '-Os',
12382 the we don't adjust jump-destination on 4-byte boundary. */
12384 if (relax_blank_list
)
12386 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12387 relax_blank_list
= NULL
;
12392 /* Closing the section, so we don't relax it anymore. */
12393 bfd_vma sec_size_align
;
12394 Elf_Internal_Rela
*tmp_rel
;
12396 /* Pad to alignment boundary. Only handle current section alignment. */
12397 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12398 & ((-1U) << sec
->alignment_power
);
12399 if ((sec_size_align
- sec
->size
) & 0x2)
12401 insn16
= NDS32_NOP16
;
12402 bfd_putb16 (insn16
, contents
+ sec
->size
);
12406 while (sec_size_align
!= sec
->size
)
12408 insn
= NDS32_NOP32
;
12409 bfd_putb32 (insn
, contents
+ sec
->size
);
12413 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12414 irelend
, R_NDS32_RELAX_ENTRY
);
12415 if (tmp_rel
!= irelend
)
12416 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12418 clean_nds32_elf_blank ();
12422 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
12423 free (internal_relocs
);
12425 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12428 if (symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12438 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12440 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12441 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12446 nds32_elf_section_flags (const Elf_Internal_Shdr
*hdr
)
12448 const char *name
= hdr
->bfd_section
->name
;
12450 if (strncmp (name
, ".sbss", 5) == 0
12451 || strncmp (name
, ".sdata", 6) == 0)
12452 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
12458 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12459 struct bfd_link_info
*info
,
12460 void *finfo ATTRIBUTE_UNUSED
,
12461 bfd_boolean (*func
) (void *, const char *,
12462 Elf_Internal_Sym
*,
12464 struct elf_link_hash_entry
*)
12467 FILE *sym_ld_script
= NULL
;
12468 struct elf_nds32_link_hash_table
*table
;
12470 table
= nds32_elf_hash_table (info
);
12471 sym_ld_script
= table
->sym_ld_script
;
12473 if (check_start_export_sym
)
12474 fprintf (sym_ld_script
, "}\n");
12479 static enum elf_reloc_type_class
12480 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12481 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12482 const Elf_Internal_Rela
*rela
)
12484 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12486 case R_NDS32_RELATIVE
:
12487 return reloc_class_relative
;
12488 case R_NDS32_JMP_SLOT
:
12489 return reloc_class_plt
;
12491 return reloc_class_copy
;
12493 return reloc_class_normal
;
12497 /* Put target dependent option into info hash table. */
12499 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12500 int relax_fp_as_gp
,
12501 int eliminate_gc_relocs
,
12502 FILE * sym_ld_script
,
12504 int tls_desc_trampoline
,
12505 int load_store_relax
)
12507 struct elf_nds32_link_hash_table
*table
;
12509 table
= nds32_elf_hash_table (link_info
);
12513 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12514 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12515 table
->sym_ld_script
= sym_ld_script
;
12516 table
->hyper_relax
= hyper_relax
;
12517 table
->tls_desc_trampoline
= tls_desc_trampoline
;
12518 table
->load_store_relax
= load_store_relax
;
12522 /* These functions and data-structures are used for fp-as-gp
12525 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12526 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12527 the read-only section and read-write section. */
12528 #define FAG_WINDOW (508 - 32)
12530 /* An nds32_fag represent a gp-relative access.
12531 We find best fp-base by using a sliding window
12532 to find a base address which can cover most gp-access. */
12535 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12536 bfd_vma addr
; /* The address of this fag. */
12537 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12538 It is used for applying FP7U2_FLAG. */
12539 int count
; /* How many times this address is referred.
12540 There should be exactly `count' relocations
12542 int relas_capcity
; /* The buffer size of relas.
12543 We use an array instead of linked-list,
12544 and realloc is used to adjust buffer size. */
12548 nds32_fag_init (struct nds32_fag
*head
)
12550 memset (head
, 0, sizeof (struct nds32_fag
));
12554 nds32_fag_verify (struct nds32_fag
*head
)
12556 struct nds32_fag
*iter
;
12557 struct nds32_fag
*prev
;
12563 if (prev
&& prev
->addr
>= iter
->addr
)
12564 puts ("Bug in fp-as-gp insertion.");
12570 /* Insert a fag in ascending order.
12571 If a fag of the same address already exists,
12572 they are chained by relas array. */
12575 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12576 Elf_Internal_Rela
* rel
)
12578 struct nds32_fag
*iter
;
12579 struct nds32_fag
*new_fag
;
12580 const int INIT_RELAS_CAP
= 4;
12583 iter
->next
&& iter
->next
->addr
<= addr
;
12585 /* Find somewhere to insert. */ ;
12587 /* `iter' will be equal to `head' if the list is empty. */
12588 if (iter
!= head
&& iter
->addr
== addr
)
12590 /* The address exists in the list.
12591 Insert `rel' into relocation list, relas. */
12593 /* Check whether relas is big enough. */
12594 if (iter
->count
>= iter
->relas_capcity
)
12596 iter
->relas_capcity
*= 2;
12597 iter
->relas
= bfd_realloc
12598 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12600 iter
->relas
[iter
->count
++] = rel
;
12604 /* This is a new address. Create a fag node for it. */
12605 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12606 memset (new_fag
, 0, sizeof (*new_fag
));
12607 new_fag
->addr
= addr
;
12608 new_fag
->count
= 1;
12609 new_fag
->next
= iter
->next
;
12610 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12611 new_fag
->relas
= (Elf_Internal_Rela
**)
12612 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12613 new_fag
->relas
[0] = rel
;
12614 iter
->next
= new_fag
;
12616 nds32_fag_verify (head
);
12620 nds32_fag_free_list (struct nds32_fag
*head
)
12622 struct nds32_fag
*iter
;
12627 struct nds32_fag
*tmp
= iter
;
12635 /* Find the best fp-base address.
12636 The relocation associated with that address is returned,
12637 so we can track the symbol instead of a fixed address.
12639 When relaxation, the address of an datum may change,
12640 because a text section is shrinked, so the data section
12641 moves forward. If the aligments of text and data section
12642 are different, their distance may change too.
12643 Therefore, tracking a fixed address is not appriate. */
12646 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12648 struct nds32_fag
*base
; /* First fag in the window. */
12649 struct nds32_fag
*last
; /* First fag outside the window. */
12650 int accu
= 0; /* Usage accumulation. */
12651 struct nds32_fag
*best
; /* Best fag. */
12652 int baccu
= 0; /* Best accumulation. */
12654 /* Use first fag for initial, and find the last fag in the window.
12656 In each iteration, we could simply subtract previous fag
12657 and accumulate following fags which are inside the window,
12658 untill we each the end. */
12660 if (head
->next
== NULL
)
12666 /* Initialize base. */
12670 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12672 accu
+= last
->count
;
12676 /* Record the best base in each iteration. */
12679 accu
-= base
->count
;
12681 /* Account fags in window. */
12682 for (/* Nothing. */;
12683 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12685 accu
+= last
->count
;
12687 /* A better fp-base? */
12700 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12701 so we can convert it fo fp-relative access later.
12702 `best_fag' is the best fp-base. Only those inside the window
12703 of best_fag is applied the flag. */
12706 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12707 asection
*sec
, struct nds32_fag
*best_fag
,
12708 Elf_Internal_Rela
*internal_relocs
,
12709 Elf_Internal_Rela
*irelend
)
12711 struct nds32_fag
*ifag
;
12712 bfd_vma best_fpbase
, gp
;
12715 output_bfd
= sec
->output_section
->owner
;
12716 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12717 best_fpbase
= best_fag
->addr
;
12719 if (best_fpbase
> gp
+ sdata_range
[1][1]
12720 || best_fpbase
< gp
- sdata_range
[1][0])
12723 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12724 so we know they can be converted to lwi37.fp. */
12725 for (ifag
= best_fag
;
12726 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12730 for (i
= 0; i
< ifag
->count
; i
++)
12732 Elf_Internal_Rela
*insn16_rel
;
12733 Elf_Internal_Rela
*fag_rel
;
12735 fag_rel
= ifag
->relas
[i
];
12737 /* Only if this is within the WINDOWS, FP7U2_FLAG
12740 insn16_rel
= find_relocs_at_address
12741 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12743 if (insn16_rel
!= irelend
)
12744 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12750 /* Reset INSN16 to clean fp as gp. */
12753 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12754 Elf_Internal_Rela
*internal_relocs
,
12755 Elf_Internal_Rela
*irelend
)
12757 struct nds32_fag
*ifag
;
12759 Elf_Internal_Rela
*insn16_rel
;
12760 Elf_Internal_Rela
*fag_rel
;
12762 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12764 for (i
= 0; i
< ifag
->count
; i
++)
12766 fag_rel
= ifag
->relas
[i
];
12768 /* Restore the INSN16 relocation. */
12769 insn16_rel
= find_relocs_at_address
12770 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12772 if (insn16_rel
!= irelend
)
12773 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12778 /* This is the main function of fp-as-gp optimization.
12779 It should be called by relax_section. */
12782 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12783 bfd
*abfd
, asection
*sec
,
12784 Elf_Internal_Rela
*internal_relocs
,
12785 Elf_Internal_Rela
*irelend
,
12786 Elf_Internal_Sym
*isymbuf
)
12788 Elf_Internal_Rela
*begin_rel
= NULL
;
12789 Elf_Internal_Rela
*irel
;
12790 struct nds32_fag fag_head
;
12791 Elf_Internal_Shdr
*symtab_hdr
;
12792 bfd_byte
*contents
;
12793 bfd_boolean ifc_inside
= FALSE
;
12795 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12797 /* Per-function fp-base selection.
12798 1. Create a list for all the gp-relative access.
12799 2. Base on those gp-relative address,
12800 find a fp-base which can cover most access.
12801 3. Use the fp-base for fp-as-gp relaxation.
12803 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12805 1. delete the `la $fp, _FP_BASE_' instruction and
12806 2. not convert lwi.gp to lwi37.fp.
12808 To delete the _FP_BASE_ instruction, we simply apply
12809 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12811 To suppress the conversion, we simply NOT to apply
12812 R_NDS32_INSN16_FP7U2_FLAG flag. */
12814 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12816 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12817 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12820 /* Check whether it is worth for fp-as-gp optimization,
12821 i.e., at least 3 gp-load.
12823 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12824 apply this optimization. */
12826 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12828 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12829 One we enter the begin of the region, we track all the LW/ST
12830 instructions, so when we leave the region, we try to find
12831 the best fp-base address for those LW/ST instructions. */
12833 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12834 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12836 /* Begin of the region. */
12838 /* xgettext:c-format */
12839 _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd
, sec
);
12842 nds32_fag_init (&fag_head
);
12843 ifc_inside
= FALSE
;
12845 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12846 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12849 struct nds32_fag
*best_fag
, *tmp_fag
;
12852 /* End of the region.
12853 Check whether it is worth to do fp-as-gp. */
12855 if (begin_rel
== NULL
)
12857 /* xgettext:c-format */
12858 _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"),
12863 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12865 /* Clean FP7U2_FLAG because they may set ever. */
12866 tmp_fag
= fag_head
.next
;
12867 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12869 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12870 if (accu
< FAG_THRESHOLD
12871 || !nds32_fag_mark_relax (link_info
, sec
, best_fag
,
12872 internal_relocs
, irelend
))
12874 /* Not worth to do fp-as-gp. */
12875 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12876 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12877 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12878 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12879 nds32_fag_free_list (&fag_head
);
12884 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12885 so we use it to record the distance to the reloction of best
12887 dist
= best_fag
->relas
[0] - begin_rel
;
12888 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12889 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12890 relocation. And get the base value when relocating. */
12891 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12892 begin_rel
->r_addend
|= dist
<< 16;
12894 nds32_fag_free_list (&fag_head
);
12898 if (begin_rel
== NULL
|| ifc_inside
)
12899 /* Skip if we are not in the region of fp-as-gp. */
12902 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12903 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12908 /* A gp-relative access is found. Insert it to the fag-list. */
12910 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12911 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12912 if (!N32_IS_RT3 (insn
))
12915 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12916 nds32_fag_insert (&fag_head
, addr
, irel
);
12918 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12922 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12923 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12925 /* Suppress fp as gp when encounter ifc. */
12933 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12936 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
12937 Elf_Internal_Rela
*internal_relocs
,
12938 Elf_Internal_Rela
*irelend
)
12940 Elf_Internal_Rela
*irel
;
12941 Elf_Internal_Shdr
*symtab_hdr
;
12942 bfd_byte
*contents
= NULL
;
12943 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12944 bfd_boolean result
= TRUE
;
12945 bfd_boolean unused_region
= FALSE
;
12948 NOTE: Disable fp-as-gp if we encounter ifcall relocations:
12949 R_NDS32_17IFC_PCREL_RELA
12950 R_NDS32_10IFCU_PCREL_RELA. */
12952 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12953 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
12955 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12957 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12958 we marked to in previous pass.
12959 DO NOT scan relocations again, since we've alreadly decided it
12960 and set the flag. */
12961 const char *syname
;
12965 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12966 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12967 unused_region
= TRUE
;
12968 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12969 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12970 unused_region
= FALSE
;
12972 /* We're not in the region. */
12973 if (!unused_region
)
12976 /* _FP_BASE_ must be a GLOBAL symbol. */
12977 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
12978 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
12981 /* The symbol name must be _FP_BASE_. */
12982 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
12983 if (strcmp (syname
, FP_BASE_NAME
) != 0)
12986 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
12988 /* addi.gp $fp, -256 */
12989 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12990 if (insn
!= INSN_ADDIGP_TO_FP
)
12993 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
12995 /* addi $fp, $gp, -256 */
12996 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12997 if (insn
!= INSN_ADDI_GP_TO_FP
)
13000 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
13002 /* movi $fp, FP_BASE */
13003 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13004 if (insn
!= INSN_MOVI_TO_FP
)
13010 /* We got here because a FP_BASE instruction is found. */
13011 if (!insert_nds32_elf_blank_recalc_total
13012 (&relax_blank_list
, irel
->r_offset
, 4))
13017 if (relax_blank_list
)
13019 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
13020 relax_blank_list
= NULL
;
13029 /* This is a version of bfd_generic_get_relocated_section_contents.
13030 We need this variety because relaxation will modify the dwarf
13031 infomation. When there is undefined symbol reference error mesage,
13032 linker need to dump line number where the symbol be used. However
13033 the address is be relaxed, it can not get the original dwarf contents.
13034 The variety only modify function call for reading in the section. */
13037 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
13038 struct bfd_link_info
*link_info
,
13039 struct bfd_link_order
*link_order
,
13041 bfd_boolean relocatable
,
13044 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
13045 asection
*input_section
= link_order
->u
.indirect
.section
;
13047 arelent
**reloc_vector
;
13050 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
13051 if (reloc_size
< 0)
13054 /* Read in the section. */
13055 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13058 if (reloc_size
== 0)
13061 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13062 if (reloc_vector
== NULL
)
13065 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13066 reloc_vector
, symbols
);
13067 if (reloc_count
< 0)
13070 if (reloc_count
> 0)
13073 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13075 char *error_message
= NULL
;
13077 bfd_reloc_status_type r
;
13079 symbol
= *(*parent
)->sym_ptr_ptr
;
13080 if (symbol
->section
&& discarded_section (symbol
->section
))
13083 static reloc_howto_type none_howto
13084 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13085 "unused", FALSE
, 0, 0, FALSE
);
13087 off
= (*parent
)->address
* OCTETS_PER_BYTE (input_bfd
,
13089 _bfd_clear_contents ((*parent
)->howto
, input_bfd
,
13090 input_section
, data
, off
);
13091 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13092 (*parent
)->addend
= 0;
13093 (*parent
)->howto
= &none_howto
;
13097 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13099 relocatable
? abfd
: NULL
,
13104 asection
*os
= input_section
->output_section
;
13106 /* A partial link, so keep the relocs. */
13107 os
->orelocation
[os
->reloc_count
] = *parent
;
13111 if (r
!= bfd_reloc_ok
)
13115 case bfd_reloc_undefined
:
13116 (*link_info
->callbacks
->undefined_symbol
)
13117 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13118 input_bfd
, input_section
, (*parent
)->address
, TRUE
);
13120 case bfd_reloc_dangerous
:
13121 BFD_ASSERT (error_message
!= NULL
);
13122 (*link_info
->callbacks
->reloc_dangerous
)
13123 (link_info
, error_message
,
13124 input_bfd
, input_section
, (*parent
)->address
);
13126 case bfd_reloc_overflow
:
13127 (*link_info
->callbacks
->reloc_overflow
)
13129 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13130 (*parent
)->howto
->name
, (*parent
)->addend
,
13131 input_bfd
, input_section
, (*parent
)->address
);
13133 case bfd_reloc_outofrange
:
13135 This error can result when processing some partially
13136 complete binaries. Do not abort, but issue an error
13137 message instead. */
13138 link_info
->callbacks
->einfo
13139 /* xgettext:c-format */
13140 (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"),
13141 abfd
, input_section
, * parent
);
13152 free (reloc_vector
);
13156 free (reloc_vector
);
13160 /* Check target symbol. */
13163 nds32_elf_is_target_special_symbol (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*sym
)
13165 if (!sym
|| !sym
->name
|| sym
->name
[0] != '$')
13170 /* nds32 find maybe function sym. Ignore target special symbol
13171 first, and then go the general function. */
13173 static bfd_size_type
13174 nds32_elf_maybe_function_sym (const asymbol
*sym
, asection
*sec
,
13177 if (nds32_elf_is_target_special_symbol (NULL
, (asymbol
*) sym
))
13180 return _bfd_elf_maybe_function_sym (sym
, sec
, code_off
);
13184 /* Do TLS model conversion. */
13186 typedef struct relax_group_list_t
13188 Elf_Internal_Rela
*relo
;
13189 struct relax_group_list_t
*next
;
13190 struct relax_group_list_t
*next_sibling
;
13192 } relax_group_list_t
;
13195 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
);
13198 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
);
13201 dump_chain (relax_group_list_t
*pHead
);
13204 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
)
13206 relax_group_list_t
*pNext
= pHead
;
13209 while (pNext
->next
)
13211 if (pNext
->next
->id
> (int) pElem
->r_addend
)
13214 pNext
= pNext
->next
;
13218 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13222 relax_group_list_t
*tmp
= pNext
->next
;
13223 pNext
->next
= pNew
;
13225 pNew
->id
= pElem
->r_addend
;
13226 pNew
->relo
= pElem
;
13228 pNew
->next_sibling
= NULL
;
13234 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
)
13236 relax_group_list_t
*pNext
= pNode
;
13239 while (pNext
->next_sibling
)
13241 pNext
= pNext
->next_sibling
;
13245 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13249 relax_group_list_t
*tmp
= pNext
->next_sibling
;
13250 pNext
->next_sibling
= pNew
;
13253 pNew
->relo
= pElem
;
13255 pNew
->next_sibling
= tmp
;
13261 dump_chain (relax_group_list_t
*pHead
)
13263 relax_group_list_t
*pNext
= pHead
->next
;
13266 printf("group %d @ 0x%08x", pNext
->id
, (unsigned)pNext
->relo
->r_offset
);
13267 relax_group_list_t
*pNextSib
= pNext
->next_sibling
;
13270 printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib
->relo
->r_info
));
13271 pNextSib
= pNextSib
->next_sibling
;
13273 pNext
= pNext
->next
;
13278 /* Check R_NDS32_RELAX_GROUP of each section.
13279 There might be multiple sections in one object file. */
13282 elf32_nds32_check_relax_group (bfd
*abfd
, asection
*asec
)
13284 elf32_nds32_relax_group_t
*relax_group_ptr
=
13285 elf32_nds32_relax_group_ptr (abfd
);
13287 int min_id
= relax_group_ptr
->min_id
;
13288 int max_id
= relax_group_ptr
->max_id
;
13290 Elf_Internal_Rela
*rel
;
13291 Elf_Internal_Rela
*relend
;
13292 Elf_Internal_Rela
*relocs
;
13293 enum elf_nds32_reloc_type rtype
;
13297 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13298 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13299 TRUE
/* keep_memory */);
13300 if (relocs
== NULL
)
13303 /* Check R_NDS32_RELAX_GROUP. */
13304 relend
= relocs
+ asec
->reloc_count
;
13305 for (rel
= relocs
; rel
< relend
; rel
++)
13308 rtype
= ELF32_R_TYPE (rel
->r_info
);
13309 if (rtype
!= R_NDS32_RELAX_GROUP
)
13312 id
= rel
->r_addend
;
13315 else if (id
> max_id
)
13321 if (elf_section_data (asec
)->relocs
!= relocs
)
13324 if ((min_id
!= relax_group_ptr
->min_id
)
13325 || (max_id
!= relax_group_ptr
->max_id
))
13327 relax_group_ptr
->count
= max_id
- min_id
+ 1;
13328 BFD_ASSERT(min_id
<= relax_group_ptr
->min_id
);
13329 relax_group_ptr
->min_id
= min_id
;
13330 BFD_ASSERT(max_id
>= relax_group_ptr
->max_id
);
13331 relax_group_ptr
->max_id
= max_id
;
13334 return relax_group_ptr
->count
;
13337 /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */
13338 struct section_id_list_t
*relax_group_section_id_list
= NULL
;
13340 struct section_id_list_t
*
13341 elf32_nds32_lookup_section_id (int id
, struct section_id_list_t
**lst_ptr
)
13343 struct section_id_list_t
*result
= NULL
;
13344 struct section_id_list_t
*lst
= *lst_ptr
;
13348 result
= (struct section_id_list_t
*) calloc
13349 (1, sizeof (struct section_id_list_t
));
13350 BFD_ASSERT (result
); /* Feed me. */
13356 struct section_id_list_t
*cur
= lst
;
13357 struct section_id_list_t
*prv
= NULL
;
13358 struct section_id_list_t
*sec
= NULL
;
13371 cur
= NULL
; /* To insert after prv. */
13372 sec
= cur
; /* In case prv == NULL. */
13380 /* Insert after prv. */
13381 result
= (struct section_id_list_t
*) calloc
13382 (1, sizeof (struct section_id_list_t
));
13383 BFD_ASSERT (result
); /* Feed me. */
13387 result
->next
= prv
->next
;
13388 prv
->next
= result
;
13393 result
->next
= sec
;
13402 elf32_nds32_unify_relax_group (bfd
*abfd
, asection
*asec
)
13404 static int next_relax_group_bias
= 0;
13406 elf32_nds32_relax_group_t
*relax_group_ptr
=
13407 elf32_nds32_relax_group_ptr (abfd
);
13409 bfd_boolean result
= TRUE
;
13410 Elf_Internal_Rela
*rel
;
13411 Elf_Internal_Rela
*relend
;
13412 Elf_Internal_Rela
*relocs
= NULL
;
13413 enum elf_nds32_reloc_type rtype
;
13414 struct section_id_list_t
*node
= NULL
;
13419 if (0 == relax_group_ptr
->count
)
13422 /* Check if this section has been handled. */
13423 node
= elf32_nds32_lookup_section_id (asec
->id
, &relax_group_section_id_list
);
13425 break; /* Hit, the section id has handled. */
13427 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13428 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13429 TRUE
/* keep_memory */);
13430 if (relocs
== NULL
)
13432 BFD_ASSERT (0); /* feed me */
13436 /* Allocate group id bias for this bfd! */
13437 if (0 == relax_group_ptr
->init
)
13439 relax_group_ptr
->bias
= next_relax_group_bias
;
13440 next_relax_group_bias
+= relax_group_ptr
->count
;
13441 relax_group_ptr
->init
= 1;
13444 /* Reorder relax group groups. */
13445 relend
= relocs
+ asec
->reloc_count
;
13446 for (rel
= relocs
; rel
< relend
; rel
++)
13448 rtype
= ELF32_R_TYPE(rel
->r_info
);
13449 if (rtype
!= R_NDS32_RELAX_GROUP
)
13453 rel
->r_addend
+= relax_group_ptr
->bias
;
13454 /* Debugging count. */
13460 if (elf_section_data (asec
)->relocs
!= relocs
)
13467 nds32_elf_unify_tls_model (bfd
*inbfd
, asection
*insec
, bfd_byte
*incontents
,
13468 struct bfd_link_info
*lnkinfo
)
13470 bfd_boolean result
= TRUE
;
13471 Elf_Internal_Rela
*irel
;
13472 Elf_Internal_Rela
*irelend
;
13473 Elf_Internal_Rela
*internal_relocs
;
13474 unsigned long r_symndx
;
13475 enum elf_nds32_reloc_type r_type
;
13477 Elf_Internal_Sym
*local_syms
= NULL
;
13478 bfd_byte
*contents
= NULL
;
13480 relax_group_list_t chain
= { .id
= -1, .next
= NULL
, .next_sibling
= NULL
};
13482 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (inbfd
)->symtab_hdr
;
13483 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
13484 sym_hashes
= elf_sym_hashes (inbfd
);
13486 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
13487 if (!elf_bad_symtab (inbfd
))
13488 sym_hashes_end
-= symtab_hdr
->sh_info
;
13490 /* Reorder RELAX_GROUP when command line option '-r' is applied. */
13491 if (bfd_link_relocatable (lnkinfo
))
13493 elf32_nds32_unify_relax_group (inbfd
, insec
);
13497 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13498 internal_relocs
= _bfd_elf_link_read_relocs (inbfd
, insec
, NULL
, NULL
,
13499 TRUE
/* keep_memory */);
13500 if (internal_relocs
== NULL
)
13503 irelend
= internal_relocs
+ insec
->reloc_count
;
13504 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
13505 irelend
, R_NDS32_RELAX_ENTRY
);
13506 if (irel
== irelend
)
13509 /* Chain/remove groups. */
13510 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13512 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13513 r_type
= ELF32_R_TYPE (irel
->r_info
);
13514 if (r_type
!= R_NDS32_RELAX_GROUP
)
13518 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_NONE
);
13519 /* Chain it now. */
13520 if (!list_insert (&chain
, irel
))
13524 /* Collect group relocations. */
13525 /* Presume relocations are sorted. */
13526 relax_group_list_t
*pNext
= chain
.next
;
13529 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13531 if (irel
->r_offset
== pNext
->relo
->r_offset
)
13533 /* Ignore Non-TLS relocation types. */
13534 r_type
= ELF32_R_TYPE (irel
->r_info
);
13535 if ((R_NDS32_TLS_LE_HI20
> r_type
)
13536 || (R_NDS32_RELAX_ENTRY
== r_type
))
13539 if (!list_insert_sibling (pNext
, irel
))
13542 else if (irel
->r_offset
> pNext
->relo
->r_offset
)
13544 pNext
= pNext
->next
;
13548 bfd_vma current_offset
= pNext
->relo
->r_offset
;
13549 if (irel
->r_offset
> current_offset
)
13550 irel
= internal_relocs
; /* restart from head */
13552 --irel
; /* Check current irel again. */
13557 /* This shouldn't be reached. */
13561 pNext
= pNext
->next
;
13564 #ifdef DUBUG_VERBOSE
13565 dump_chain(&chain
);
13568 /* Get symbol table and section content. */
13570 contents
= incontents
;
13571 else if (!nds32_get_section_contents (inbfd
, insec
, &contents
, TRUE
)
13572 || !nds32_get_local_syms (inbfd
, insec
, &local_syms
))
13575 char *local_got_tls_type
= elf32_nds32_local_got_tls_type (inbfd
);
13577 /* Convert TLS model each group if necessary. */
13578 pNext
= chain
.next
;
13580 int cur_grp_id
= -1;
13583 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
13585 tls_type
= org_tls_type
= eff_tls_type
= 0;
13589 relax_group_list_t
*pNextSig
= pNext
->next_sibling
;
13592 struct elf_link_hash_entry
*h
= NULL
;
13594 irel
= pNextSig
->relo
;
13595 r_symndx
= ELF32_R_SYM(irel
->r_info
);
13596 r_type
= ELF32_R_TYPE(irel
->r_info
);
13598 if (pNext
->id
!= cur_grp_id
)
13600 cur_grp_id
= pNext
->id
;
13601 org_tls_type
= get_tls_type (r_type
, NULL
);
13602 if (r_symndx
>= symtab_hdr
->sh_info
)
13604 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13605 while (h
->root
.type
== bfd_link_hash_indirect
13606 || h
->root
.type
== bfd_link_hash_warning
)
13607 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
13608 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
13612 tls_type
= local_got_tls_type
13613 ? local_got_tls_type
[r_symndx
]
13617 eff_tls_type
= 1 << (fls (tls_type
) - 1);
13618 sethi_rt
= N32_RT5(bfd_getb32 (contents
+ irel
->r_offset
));
13621 if (eff_tls_type
!= org_tls_type
)
13623 switch (org_tls_type
)
13625 /* DESC to IEGP/IE/LE. */
13627 switch (eff_tls_type
)
13632 case R_NDS32_TLS_DESC_HI20
:
13633 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13634 R_NDS32_TLS_IE_HI20
);
13636 case R_NDS32_TLS_DESC_LO12
:
13637 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13638 R_NDS32_TLS_IE_LO12
);
13640 case R_NDS32_TLS_DESC_ADD
:
13642 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13643 add_rt
= N32_RT5 (insn
);
13644 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13645 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13647 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13650 case R_NDS32_TLS_DESC_FUNC
:
13651 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13652 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13653 R_NDS32_RELAX_REMOVE
);
13655 case R_NDS32_TLS_DESC_CALL
:
13657 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13659 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13661 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13664 case R_NDS32_LOADSTORE
:
13666 case R_NDS32_PTR_RESOLVED
:
13668 case R_NDS32_LABEL
:
13678 case R_NDS32_TLS_DESC_HI20
:
13679 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13680 R_NDS32_TLS_IEGP_HI20
);
13682 case R_NDS32_TLS_DESC_LO12
:
13683 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13684 R_NDS32_TLS_IEGP_LO12
);
13686 case R_NDS32_TLS_DESC_ADD
:
13688 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13689 add_rt
= N32_RT5 (insn
);
13690 insn
= N32_MEM(LW
, add_rt
, sethi_rt
, REG_GP
, 0);
13691 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13693 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13696 case R_NDS32_TLS_DESC_FUNC
:
13697 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13698 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13699 R_NDS32_RELAX_REMOVE
);
13701 case R_NDS32_TLS_DESC_CALL
:
13703 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13705 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13707 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13710 case R_NDS32_LOADSTORE
:
13712 case R_NDS32_PTR_RESOLVED
:
13714 case R_NDS32_LABEL
:
13724 case R_NDS32_TLS_DESC_HI20
:
13725 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13727 case R_NDS32_TLS_DESC_LO12
:
13728 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13730 case R_NDS32_TLS_DESC_ADD
:
13732 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13734 add_rt
= N32_RT5 (insn
);
13735 insn
= N32_ALU1 (ADD
, REG_R0
, sethi_rt
, REG_TP
);
13736 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13738 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_ADD
);
13741 case R_NDS32_TLS_DESC_FUNC
:
13742 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13743 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13745 case R_NDS32_TLS_DESC_CALL
:
13746 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13747 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13749 case R_NDS32_LOADSTORE
:
13751 case R_NDS32_PTR_RESOLVED
:
13753 case R_NDS32_LABEL
:
13764 /* IEGP to IE/LE. */
13766 switch (eff_tls_type
)
13771 case R_NDS32_TLS_IEGP_HI20
:
13772 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13773 R_NDS32_TLS_IE_HI20
);
13775 case R_NDS32_TLS_IEGP_LO12
:
13776 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13777 R_NDS32_TLS_IE_LO12
);
13779 case R_NDS32_PTR_RESOLVED
:
13781 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13783 add_rt
= N32_RT5 (insn
);
13784 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13785 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13788 case R_NDS32_TLS_IEGP_LW
:
13790 case R_NDS32_LOADSTORE
:
13793 case R_NDS32_LABEL
:
13803 case R_NDS32_TLS_IEGP_HI20
:
13804 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13806 case R_NDS32_TLS_IEGP_LO12
:
13807 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13809 case R_NDS32_TLS_IEGP_LW
:
13810 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13811 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13813 case R_NDS32_LOADSTORE
:
13816 case R_NDS32_LABEL
:
13817 case R_NDS32_PTR_RESOLVED
:
13830 switch (eff_tls_type
)
13835 case R_NDS32_TLS_IE_HI20
:
13836 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13838 case R_NDS32_TLS_IE_LO12S2
:
13840 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13842 add_rt
= N32_RT5 (insn
);
13843 insn
= N32_TYPE2 (ORI
, add_rt
, sethi_rt
, 0);
13844 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13846 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13849 case R_NDS32_LOADSTORE
:
13852 case R_NDS32_LABEL
:
13867 pNextSig
= pNextSig
->next_sibling
;
13871 pNext
= pNext
->next
;
13875 if (pNext
->id
!= cur_grp_id
)
13877 pNext
= pNext
->next
;
13886 if (elf_section_data (insec
)->relocs
!= internal_relocs
)
13887 free (internal_relocs
);
13889 if (elf_section_data (insec
)->this_hdr
.contents
!= contents
)
13892 if (symtab_hdr
->contents
!= (bfd_byte
*) local_syms
)
13897 pNext
= chain
.next
;
13898 relax_group_list_t
*pDel
;
13902 pNext
= pNext
->next
;
13914 /* End TLS model conversion. */
13916 #define ELF_ARCH bfd_arch_nds32
13917 #define ELF_MACHINE_CODE EM_NDS32
13918 #define ELF_MAXPAGESIZE 0x1000
13919 #define ELF_TARGET_ID NDS32_ELF_DATA
13921 #define TARGET_BIG_SYM nds32_elf32_be_vec
13922 #define TARGET_BIG_NAME "elf32-nds32be"
13923 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
13924 #define TARGET_LITTLE_NAME "elf32-nds32le"
13926 #define elf_info_to_howto nds32_info_to_howto
13927 #define elf_info_to_howto_rel nds32_info_to_howto_rel
13929 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
13930 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
13931 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
13932 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
13933 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
13935 #define bfd_elf32_mkobject nds32_elf_mkobject
13936 #define elf_backend_action_discarded nds32_elf_action_discarded
13937 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
13938 #define elf_backend_check_relocs nds32_elf_check_relocs
13939 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
13940 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
13941 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
13942 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
13943 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
13944 #define elf_backend_relocate_section nds32_elf_relocate_section
13945 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
13946 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
13947 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
13948 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
13949 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
13950 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
13951 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
13952 #define elf_backend_object_p nds32_elf_object_p
13953 #define elf_backend_final_write_processing nds32_elf_final_write_processing
13954 #define elf_backend_special_sections nds32_elf_special_sections
13955 #define elf_backend_section_flags nds32_elf_section_flags
13956 #define bfd_elf32_bfd_get_relocated_section_contents \
13957 nds32_elf_get_relocated_section_contents
13958 #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol
13959 #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym
13961 #define elf_backend_can_gc_sections 1
13962 #define elf_backend_can_refcount 1
13963 #define elf_backend_want_got_plt 1
13964 #define elf_backend_plt_readonly 1
13965 #define elf_backend_want_plt_sym 0
13966 #define elf_backend_got_header_size 12
13967 #define elf_backend_may_use_rel_p 1
13968 #define elf_backend_default_use_rela_p 1
13969 #define elf_backend_may_use_rela_p 1
13970 #define elf_backend_dtrel_excludes_plt 0
13972 #include "elf32-target.h"
13974 #undef ELF_MAXPAGESIZE
13975 #define ELF_MAXPAGESIZE 0x2000
13977 #undef TARGET_BIG_SYM
13978 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
13979 #undef TARGET_BIG_NAME
13980 #define TARGET_BIG_NAME "elf32-nds32be-linux"
13981 #undef TARGET_LITTLE_SYM
13982 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
13983 #undef TARGET_LITTLE_NAME
13984 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
13986 #define elf32_bed elf32_nds32_lin_bed
13988 #include "elf32-target.h"