1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2021 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 alignment 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
| SEC_SMALL_DATA
;
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
->sym_ld_script
= NULL
;
3701 return &ret
->root
.root
;
3704 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3705 shortcuts to them in our hash table. */
3708 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
3710 struct elf_link_hash_table
*ehtab
;
3712 if (!_bfd_elf_create_got_section (dynobj
, info
))
3715 ehtab
= elf_hash_table (info
);
3716 ehtab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3717 ehtab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3718 if (!ehtab
->sgot
|| !ehtab
->sgotplt
)
3721 /* _bfd_elf_create_got_section will create it for us. */
3722 ehtab
->srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3723 if (ehtab
->srelgot
== NULL
3724 || !bfd_set_section_flags (ehtab
->srelgot
,
3725 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3726 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3728 || !bfd_set_section_alignment (ehtab
->srelgot
, 2))
3734 /* Create dynamic sections when linking against a dynamic object. */
3737 nds32_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3739 struct elf_link_hash_table
*ehtab
;
3740 struct elf_nds32_link_hash_table
*htab
;
3741 flagword flags
, pltflags
;
3742 register asection
*s
;
3743 const struct elf_backend_data
*bed
;
3744 int ptralign
= 2; /* 32-bit */
3745 const char *secname
;
3750 bed
= get_elf_backend_data (abfd
);
3751 ehtab
= elf_hash_table (info
);
3752 htab
= nds32_elf_hash_table (info
);
3754 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3755 .rel[a].bss sections. */
3757 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3758 | SEC_LINKER_CREATED
);
3761 pltflags
|= SEC_CODE
;
3762 if (bed
->plt_not_loaded
)
3763 pltflags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
3764 if (bed
->plt_readonly
)
3765 pltflags
|= SEC_READONLY
;
3767 s
= bfd_make_section (abfd
, ".plt");
3770 || !bfd_set_section_flags (s
, pltflags
)
3771 || !bfd_set_section_alignment (s
, bed
->plt_alignment
))
3774 if (bed
->want_plt_sym
)
3776 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3778 struct bfd_link_hash_entry
*bh
= NULL
;
3779 struct elf_link_hash_entry
*h
;
3781 if (!(_bfd_generic_link_add_one_symbol
3782 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3783 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
3784 get_elf_backend_data (abfd
)->collect
, &bh
)))
3787 h
= (struct elf_link_hash_entry
*) bh
;
3789 h
->type
= STT_OBJECT
;
3791 if (bfd_link_pic (info
) && !bfd_elf_link_record_dynamic_symbol (info
, h
))
3795 s
= bfd_make_section (abfd
,
3796 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3799 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3800 || !bfd_set_section_alignment (s
, ptralign
))
3803 if (ehtab
->sgot
== NULL
&& !create_got_section (abfd
, info
))
3806 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3808 secflags
= bfd_section_flags (sec
);
3809 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3810 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3812 secname
= bfd_section_name (sec
);
3813 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
3814 strcpy (relname
, ".rela");
3815 strcat (relname
, secname
);
3816 if (bfd_get_section_by_name (abfd
, secname
))
3818 s
= bfd_make_section (abfd
, relname
);
3820 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3821 || !bfd_set_section_alignment (s
, ptralign
))
3825 if (bed
->want_dynbss
)
3827 /* The .dynbss section is a place to put symbols which are defined
3828 by dynamic objects, are referenced by regular objects, and are
3829 not functions. We must allocate space for them in the process
3830 image and use a R_*_COPY reloc to tell the dynamic linker to
3831 initialize them at run time. The linker script puts the .dynbss
3832 section into the .bss section of the final image. */
3833 s
= bfd_make_section (abfd
, ".dynbss");
3834 htab
->root
.sdynbss
= s
;
3836 || !bfd_set_section_flags (s
, SEC_ALLOC
| SEC_LINKER_CREATED
))
3838 /* The .rel[a].bss section holds copy relocs. This section is not
3839 normally needed. We need to create it here, though, so that the
3840 linker will map it to an output section. We can't just create it
3841 only if we need it, because we will not know whether we need it
3842 until we have seen all the input files, and the first time the
3843 main linker code calls BFD after examining all the input files
3844 (size_dynamic_sections) the input sections have already been
3845 mapped to the output sections. If the section turns out not to
3846 be needed, we can discard it later. We will never need this
3847 section when generating a shared object, since they do not use
3849 if (!bfd_link_pic (info
))
3851 s
= bfd_make_section (abfd
, (bed
->default_use_rela_p
3852 ? ".rela.bss" : ".rel.bss"));
3853 htab
->root
.srelbss
= s
;
3855 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3856 || !bfd_set_section_alignment (s
, ptralign
))
3864 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3866 nds32_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3867 struct elf_link_hash_entry
*dir
,
3868 struct elf_link_hash_entry
*ind
)
3870 struct elf_nds32_link_hash_entry
*edir
, *eind
;
3872 edir
= (struct elf_nds32_link_hash_entry
*) dir
;
3873 eind
= (struct elf_nds32_link_hash_entry
*) ind
;
3875 if (ind
->root
.type
== bfd_link_hash_indirect
)
3877 if (dir
->got
.refcount
<= 0)
3879 edir
->tls_type
= eind
->tls_type
;
3880 eind
->tls_type
= GOT_UNKNOWN
;
3884 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3887 /* Adjust a symbol defined by a dynamic object and referenced by a
3888 regular object. The current definition is in some section of the
3889 dynamic object, but we're not including those sections. We have to
3890 change the definition to something the rest of the link can
3894 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3895 struct elf_link_hash_entry
*h
)
3897 struct elf_nds32_link_hash_table
*htab
;
3900 unsigned int power_of_two
;
3902 dynobj
= elf_hash_table (info
)->dynobj
;
3904 /* Make sure we know what is going on here. */
3905 BFD_ASSERT (dynobj
!= NULL
3908 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
3911 /* If this is a function, put it in the procedure linkage table. We
3912 will fill in the contents of the procedure linkage table later,
3913 when we know the address of the .got section. */
3914 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
3916 if (!bfd_link_pic (info
)
3919 && h
->root
.type
!= bfd_link_hash_undefweak
3920 && h
->root
.type
!= bfd_link_hash_undefined
)
3922 /* This case can occur if we saw a PLT reloc in an input
3923 file, but the symbol was never referred to by a dynamic
3924 object. In such a case, we don't actually need to build
3925 a procedure linkage table, and we can just do a PCREL
3927 h
->plt
.offset
= (bfd_vma
) - 1;
3934 h
->plt
.offset
= (bfd_vma
) - 1;
3936 /* If this is a weak symbol, and there is a real definition, the
3937 processor independent code will have arranged for us to see the
3938 real definition first, and we can just use the same value. */
3939 if (h
->is_weakalias
)
3941 struct elf_link_hash_entry
*def
= weakdef (h
);
3942 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
3943 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
3944 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
3948 /* This is a reference to a symbol defined by a dynamic object which
3949 is not a function. */
3951 /* If we are creating a shared library, we must presume that the
3952 only references to the symbol are via the global offset table.
3953 For such cases we need not do anything here; the relocations will
3954 be handled correctly by relocate_section. */
3955 if (bfd_link_pic (info
))
3958 /* If there are no references to this symbol that do not use the
3959 GOT, we don't need to generate a copy reloc. */
3960 if (!h
->non_got_ref
)
3963 /* If -z nocopyreloc was given, we won't generate them either. */
3964 if (0 && info
->nocopyreloc
)
3970 /* If we don't find any dynamic relocs in read-only sections, then
3971 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
3972 if (!_bfd_elf_readonly_dynrelocs (h
))
3978 /* We must allocate the symbol in our .dynbss section, which will
3979 become part of the .bss section of the executable. There will be
3980 an entry for this symbol in the .dynsym section. The dynamic
3981 object will contain position independent code, so all references
3982 from the dynamic object to this symbol will go through the global
3983 offset table. The dynamic linker will use the .dynsym entry to
3984 determine the address it must put in the global offset table, so
3985 both the dynamic object and the regular object will refer to the
3986 same memory location for the variable. */
3988 htab
= nds32_elf_hash_table (info
);
3989 s
= htab
->root
.sdynbss
;
3990 BFD_ASSERT (s
!= NULL
);
3992 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
3993 to copy the initial value out of the dynamic object and into the
3994 runtime process image. We need to remember the offset into the
3995 .rela.bss section we are going to use. */
3996 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4000 srel
= htab
->root
.srelbss
;
4001 BFD_ASSERT (srel
!= NULL
);
4002 srel
->size
+= sizeof (Elf32_External_Rela
);
4006 /* We need to figure out the alignment required for this symbol. I
4007 have no idea how ELF linkers handle this. */
4008 power_of_two
= bfd_log2 (h
->size
);
4009 if (power_of_two
> 3)
4012 /* Apply the required alignment. */
4013 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
4014 if (power_of_two
> bfd_section_alignment (s
))
4016 if (!bfd_set_section_alignment (s
, power_of_two
))
4020 /* Define the symbol as being at this point in the section. */
4021 h
->root
.u
.def
.section
= s
;
4022 h
->root
.u
.def
.value
= s
->size
;
4024 /* Increment the section size to make room for the symbol. */
4030 /* Allocate space in .plt, .got and associated reloc sections for
4034 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
4036 struct bfd_link_info
*info
;
4037 struct elf_link_hash_table
*ehtab
;
4038 struct elf_nds32_link_hash_table
*htab
;
4039 struct elf_dyn_relocs
*p
;
4041 if (h
->root
.type
== bfd_link_hash_indirect
)
4044 /* When warning symbols are created, they **replace** the "real"
4045 entry in the hash table, thus we never get to see the real
4046 symbol in a hash traversal. So look at it now. */
4047 if (h
->root
.type
== bfd_link_hash_warning
)
4048 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4050 info
= (struct bfd_link_info
*) inf
;
4051 ehtab
= elf_hash_table (info
);
4052 htab
= nds32_elf_hash_table (info
);
4056 if ((htab
->root
.dynamic_sections_created
|| h
->type
== STT_GNU_IFUNC
)
4057 && h
->plt
.refcount
> 0
4058 && !(bfd_link_pie (info
) && h
->def_regular
))
4060 /* Make sure this symbol is output as a dynamic symbol.
4061 Undefined weak syms won't yet be marked as dynamic. */
4062 if (h
->dynindx
== -1 && !h
->forced_local
)
4064 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4068 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
4070 asection
*s
= ehtab
->splt
;
4072 /* If this is the first .plt entry, make room for the special
4075 s
->size
+= PLT_ENTRY_SIZE
;
4077 h
->plt
.offset
= s
->size
;
4079 /* If this symbol is not defined in a regular file, and we are
4080 not generating a shared library, then set the symbol to this
4081 location in the .plt. This is required to make function
4082 pointers compare as equal between the normal executable and
4083 the shared library. */
4084 if (!bfd_link_pic (info
) && !h
->def_regular
)
4086 h
->root
.u
.def
.section
= s
;
4087 h
->root
.u
.def
.value
= h
->plt
.offset
;
4090 /* Make room for this entry. */
4091 s
->size
+= PLT_ENTRY_SIZE
;
4093 /* We also need to make an entry in the .got.plt section, which
4094 will be placed in the .got section by the linker script. */
4095 ehtab
->sgotplt
->size
+= 4;
4097 /* We also need to make an entry in the .rel.plt section. */
4098 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4099 if (htab
->tls_desc_trampoline
)
4100 htab
->next_tls_desc_index
++;
4104 h
->plt
.offset
= (bfd_vma
) - 1;
4110 h
->plt
.offset
= (bfd_vma
) - 1;
4114 if (h
->got
.refcount
> 0)
4118 int tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
4120 /* Make sure this symbol is output as a dynamic symbol.
4121 Undefined weak syms won't yet be marked as dynamic. */
4122 if (h
->dynindx
== -1 && !h
->forced_local
)
4124 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4128 sgot
= elf_hash_table (info
)->sgot
;
4129 h
->got
.offset
= sgot
->size
;
4131 if (tls_type
== GOT_UNKNOWN
)
4134 /* Non-TLS symbols, and TLS_IE need one GOT slot. */
4135 if (tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4139 /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */
4140 if (tls_type
& GOT_TLS_DESC
)
4144 dyn
= htab
->root
.dynamic_sections_created
;
4146 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
4148 if (tls_type
== GOT_TLS_DESC
&& htab
->tls_desc_trampoline
)
4150 /* TLS_DESC with trampoline needs a relocation slot
4151 within .rela.plt. */
4152 htab
->num_tls_desc
++;
4153 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4154 htab
->tls_trampoline
= -1;
4158 /* other relocations, including TLS_DESC without trampoline, need
4159 a relocation slot within .rela.got. */
4160 ehtab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
4165 h
->got
.offset
= (bfd_vma
)-1;
4167 if (h
->dyn_relocs
== NULL
)
4170 /* In the shared -Bsymbolic case, discard space allocated for
4171 dynamic pc-relative relocs against symbols which turn out to be
4172 defined in regular objects. For the normal shared case, discard
4173 space for pc-relative relocs that have become local due to symbol
4174 visibility changes. */
4176 if (bfd_link_pic (info
))
4178 if (h
->def_regular
&& (h
->forced_local
|| info
->symbolic
))
4180 struct elf_dyn_relocs
**pp
;
4182 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
;)
4184 p
->count
-= p
->pc_count
;
4195 /* For the non-shared case, discard space for relocs against
4196 symbols which turn out to need copy relocs or are not dynamic. */
4201 || (htab
->root
.dynamic_sections_created
4202 && (h
->root
.type
== bfd_link_hash_undefweak
4203 || h
->root
.type
== bfd_link_hash_undefined
))))
4205 /* Make sure this symbol is output as a dynamic symbol.
4206 Undefined weak syms won't yet be marked as dynamic. */
4207 if (h
->dynindx
== -1 && !h
->forced_local
)
4209 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4213 /* If that succeeded, we know we'll be keeping all the
4215 if (h
->dynindx
!= -1)
4219 h
->dyn_relocs
= NULL
;
4224 /* Finally, allocate space. */
4225 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4227 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4228 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4234 /* Add relocation REL to the end of relocation section SRELOC. */
4237 elf32_nds32_add_dynreloc (bfd
*output_bfd
,
4238 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4239 asection
*sreloc
, Elf_Internal_Rela
*rel
)
4245 loc
= sreloc
->contents
;
4246 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4247 if (sreloc
->reloc_count
* sizeof (Elf32_External_Rela
) > sreloc
->size
)
4250 bfd_elf32_swap_reloca_out (output_bfd
, rel
, loc
);
4253 /* Set the sizes of the dynamic sections. */
4256 nds32_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
4257 struct bfd_link_info
*info
)
4259 struct elf_nds32_link_hash_table
*htab
;
4265 htab
= nds32_elf_hash_table (info
);
4269 dynobj
= elf_hash_table (info
)->dynobj
;
4270 BFD_ASSERT (dynobj
!= NULL
);
4272 if (elf_hash_table (info
)->dynamic_sections_created
)
4274 /* Set the contents of the .interp section to the interpreter. */
4275 if (bfd_link_executable (info
) && !info
->nointerp
)
4277 s
= bfd_get_section_by_name (dynobj
, ".interp");
4278 BFD_ASSERT (s
!= NULL
);
4279 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
4280 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
4284 /* Set up .got offsets for local syms, and space for local dynamic
4286 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
4288 bfd_signed_vma
*local_got
;
4289 bfd_signed_vma
*end_local_got
;
4290 bfd_size_type locsymcount
;
4291 Elf_Internal_Shdr
*symtab_hdr
;
4293 char *local_tls_type
;
4294 unsigned long symndx
;
4295 bfd_vma
*local_tlsdesc_gotent
;
4297 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4300 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4302 struct elf_dyn_relocs
*p
;
4304 for (p
= ((struct elf_dyn_relocs
*)
4305 elf_section_data (s
)->local_dynrel
);
4306 p
!= NULL
; p
= p
->next
)
4308 if (!bfd_is_abs_section (p
->sec
)
4309 && bfd_is_abs_section (p
->sec
->output_section
))
4311 /* Input section has been discarded, either because
4312 it is a copy of a linkonce section or due to
4313 linker script /DISCARD/, so we'll be discarding
4316 else if (p
->count
!= 0)
4318 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4319 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4320 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4321 info
->flags
|= DF_TEXTREL
;
4326 local_got
= elf_local_got_refcounts (ibfd
);
4330 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4331 locsymcount
= symtab_hdr
->sh_info
;
4332 end_local_got
= local_got
+ locsymcount
;
4333 sgot
= elf_hash_table (info
)->sgot
;
4334 local_tls_type
= elf32_nds32_local_got_tls_type (ibfd
);
4335 local_tlsdesc_gotent
= elf32_nds32_local_tlsdesc_gotent (ibfd
);
4336 for (symndx
= 0; local_got
< end_local_got
;
4337 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
, ++symndx
)
4341 int num_of_got_entry_needed
= 0;
4342 *local_got
= sgot
->size
;
4343 *local_tlsdesc_gotent
= sgot
->size
;
4345 /* TLS_NORMAL, and TLS_IE need one slot in .got. */
4346 if (*local_tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4347 num_of_got_entry_needed
= 1;
4348 /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */
4349 else if (*local_tls_type
& GOT_TLS_DESC
)
4350 num_of_got_entry_needed
= 2;
4352 sgot
->size
+= (num_of_got_entry_needed
<< 2);
4354 /* non-relax-able TLS_DESCs need a slot in .rela.plt.
4355 others need a slot in .rela.got. */
4356 if (*local_tls_type
== GOT_TLS_DESC
)
4358 if (bfd_link_pic (info
))
4360 if (htab
->tls_desc_trampoline
)
4362 htab
->num_tls_desc
++;
4363 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
4364 htab
->tls_trampoline
= -1;
4367 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4371 /* TLS_DESC -> TLS_LE */
4376 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4381 *local_got
= (bfd_vma
) -1;
4382 *local_tlsdesc_gotent
= (bfd_vma
) -1;
4387 /* Allocate global sym .plt and .got entries, and space for global
4388 sym dynamic relocs. */
4389 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4391 /* For every jump slot reserved in the sgotplt, reloc_count is
4392 incremented. However, when we reserve space for TLS descriptors,
4393 it's not incremented, so in order to compute the space reserved
4394 for them, it suffices to multiply the reloc count by the jump
4396 if (htab
->tls_desc_trampoline
&& htab
->root
.srelplt
)
4397 htab
->sgotplt_jump_table_size
= elf32_nds32_compute_jump_table_size (htab
);
4399 if (htab
->tls_trampoline
)
4401 htab
->tls_trampoline
= htab
->root
.splt
->size
;
4403 /* If we're not using lazy TLS relocations, don't generate the
4404 PLT and GOT entries they require. */
4405 if ((info
->flags
& DF_BIND_NOW
))
4406 htab
->root
.tlsdesc_plt
= 0;
4409 htab
->root
.tlsdesc_got
= htab
->root
.sgot
->size
;
4410 htab
->root
.sgot
->size
+= 4;
4412 htab
->root
.tlsdesc_plt
= htab
->root
.splt
->size
;
4413 htab
->root
.splt
->size
+= 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
);
4417 /* We now have determined the sizes of the various dynamic sections.
4418 Allocate memory for them. */
4419 /* The check_relocs and adjust_dynamic_symbol entry points have
4420 determined the sizes of the various dynamic sections. Allocate
4423 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
4425 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
4428 if (s
== htab
->root
.splt
)
4430 /* Strip this section if we don't need it; see the
4434 else if (s
== elf_hash_table (info
)->sgot
)
4436 got_size
+= s
->size
;
4438 else if (s
== elf_hash_table (info
)->sgotplt
)
4440 got_size
+= s
->size
;
4442 else if (strncmp (bfd_section_name (s
), ".rela", 5) == 0)
4444 if (s
->size
!= 0 && s
!= elf_hash_table (info
)->srelplt
)
4447 /* We use the reloc_count field as a counter if we need
4448 to copy relocs into the output file. */
4453 /* It's not one of our sections, so don't allocate space. */
4459 /* If we don't need this section, strip it from the
4460 output file. This is mostly to handle .rela.bss and
4461 .rela.plt. We must create both sections in
4462 create_dynamic_sections, because they must be created
4463 before the linker maps input sections to output
4464 sections. The linker does that before
4465 adjust_dynamic_symbol is called, and it is that
4466 function which decides whether anything needs to go
4467 into these sections. */
4468 s
->flags
|= SEC_EXCLUDE
;
4472 /* Allocate memory for the section contents. We use bfd_zalloc
4473 here in case unused entries are not reclaimed before the
4474 section's contents are written out. This should not happen,
4475 but this way if it does, we get a R_NDS32_NONE reloc instead
4477 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
4478 if (s
->contents
== NULL
)
4482 return _bfd_elf_add_dynamic_tags (output_bfd
, info
, relocs
);
4485 static bfd_reloc_status_type
4486 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4487 bfd_vma relocation
, bfd_byte
*location
)
4491 bfd_reloc_status_type flag
;
4492 unsigned int rightshift
= howto
->rightshift
;
4493 unsigned int bitpos
= howto
->bitpos
;
4496 relocation
= -relocation
;
4498 /* Get the value we are going to relocate. */
4499 size
= bfd_get_reloc_size (howto
);
4506 return bfd_reloc_ok
;
4508 x
= bfd_getb16 (location
);
4511 x
= bfd_getb32 (location
);
4515 /* Check for overflow. FIXME: We may drop bits during the addition
4516 which we don't check for. We must either check at every single
4517 operation, which would be tedious, or we must do the computations
4518 in a type larger than bfd_vma, which would be inefficient. */
4519 flag
= bfd_reloc_ok
;
4520 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4522 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4525 /* Get the values to be added together. For signed and unsigned
4526 relocations, we assume that all values should be truncated to
4527 the size of an address. For bitfields, all the bits matter.
4528 See also bfd_check_overflow. */
4529 fieldmask
= N_ONES (howto
->bitsize
);
4530 signmask
= ~fieldmask
;
4531 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4532 a
= (relocation
& addrmask
) >> rightshift
;
4533 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4535 switch (howto
->complain_on_overflow
)
4537 case complain_overflow_signed
:
4538 /* If any sign bits are set, all sign bits must be set.
4539 That is, A must be a valid negative address after
4541 signmask
= ~(fieldmask
>> 1);
4544 case complain_overflow_bitfield
:
4545 /* Much like the signed check, but for a field one bit
4546 wider. We allow a bitfield to represent numbers in the
4547 range -2**n to 2**n-1, where n is the number of bits in the
4548 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4549 can't overflow, which is exactly what we want. */
4551 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4552 flag
= bfd_reloc_overflow
;
4554 /* We only need this next bit of code if the sign bit of B
4555 is below the sign bit of A. This would only happen if
4556 SRC_MASK had fewer bits than BITSIZE. Note that if
4557 SRC_MASK has more bits than BITSIZE, we can get into
4558 trouble; we would need to verify that B is in range, as
4559 we do for A above. */
4560 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4563 /* Set all the bits above the sign bit. */
4566 /* Now we can do the addition. */
4569 /* See if the result has the correct sign. Bits above the
4570 sign bit are junk now; ignore them. If the sum is
4571 positive, make sure we did not have all negative inputs;
4572 if the sum is negative, make sure we did not have all
4573 positive inputs. The test below looks only at the sign
4574 bits, and it really just
4575 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4577 We mask with addrmask here to explicitly allow an address
4578 wrap-around. The Linux kernel relies on it, and it is
4579 the only way to write assembler code which can run when
4580 loaded at a location 0x80000000 away from the location at
4581 which it is linked. */
4582 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4583 flag
= bfd_reloc_overflow
;
4587 case complain_overflow_unsigned
:
4588 /* Checking for an unsigned overflow is relatively easy:
4589 trim the addresses and add, and trim the result as well.
4590 Overflow is normally indicated when the result does not
4591 fit in the field. However, we also need to consider the
4592 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4593 input is 0x80000000, and bfd_vma is only 32 bits; then we
4594 will get sum == 0, but there is an overflow, since the
4595 inputs did not fit in the field. Instead of doing a
4596 separate test, we can check for this by or-ing in the
4597 operands when testing for the sum overflowing its final
4599 sum
= (a
+ b
) & addrmask
;
4600 if ((a
| b
| sum
) & signmask
)
4601 flag
= bfd_reloc_overflow
;
4609 /* Put RELOCATION in the right bits. */
4610 relocation
>>= (bfd_vma
) rightshift
;
4611 relocation
<<= (bfd_vma
) bitpos
;
4613 /* Add RELOCATION to the right bits of X. */
4615 Because the relaxation may generate duplicate relocation at one address,
4616 an addition to immediate in the instruction may cause the relocation added
4618 This bug should be fixed in assembler, but a check is also needed here. */
4619 if (howto
->partial_inplace
)
4620 x
= ((x
& ~howto
->dst_mask
)
4621 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4623 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4626 /* Put the relocated value back in the object file. */
4636 bfd_putb16 (x
, location
);
4639 bfd_putb32 (x
, location
);
4646 static bfd_reloc_status_type
4647 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4648 asection
*input_section
, bfd_byte
*contents
,
4649 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4653 /* Sanity check the address. */
4654 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4655 return bfd_reloc_outofrange
;
4657 /* This function assumes that we are dealing with a basic relocation
4658 against a symbol. We want to compute the value of the symbol to
4659 relocate to. This is just VALUE, the value of the symbol, plus
4660 ADDEND, any addend associated with the reloc. */
4661 relocation
= value
+ addend
;
4663 /* If the relocation is PC relative, we want to set RELOCATION to
4664 the distance between the symbol (currently in RELOCATION) and the
4665 location we are relocating. If pcrel_offset is FALSE we do not
4666 need to subtract out the offset of the location within the
4667 section (which is just ADDRESS). */
4668 if (howto
->pc_relative
)
4670 relocation
-= (input_section
->output_section
->vma
4671 + input_section
->output_offset
);
4672 if (howto
->pcrel_offset
)
4673 relocation
-= address
;
4676 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4677 contents
+ address
);
4681 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4683 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4684 asection
*input_sec
,
4685 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4688 FILE *sym_ld_script
= NULL
;
4689 struct elf_nds32_link_hash_table
*table
;
4691 table
= nds32_elf_hash_table (info
);
4692 sym_ld_script
= table
->sym_ld_script
;
4696 if (!h
|| !name
|| *name
== '\0')
4699 if (input_sec
->flags
& SEC_EXCLUDE
)
4702 if (!check_start_export_sym
)
4704 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4705 check_start_export_sym
= 1;
4708 if (h
->root
.type
== bfd_link_hash_defined
4709 || h
->root
.type
== bfd_link_hash_defweak
)
4711 if (!h
->root
.u
.def
.section
->output_section
)
4714 if (bfd_is_const_section (input_sec
))
4715 source
= input_sec
->name
;
4717 source
= bfd_get_filename (input_sec
->owner
);
4719 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4720 h
->root
.root
.string
,
4721 (long) (h
->root
.u
.def
.value
4722 + h
->root
.u
.def
.section
->output_section
->vma
4723 + h
->root
.u
.def
.section
->output_offset
), source
);
4729 /* Relocate an NDS32/D ELF section.
4730 There is some attempt to make this function usable for many architectures,
4731 both for RELA and REL type relocs, if only to serve as a learning tool.
4733 The RELOCATE_SECTION function is called by the new ELF backend linker
4734 to handle the relocations for a section.
4736 The relocs are always passed as Rela structures; if the section
4737 actually uses Rel structures, the r_addend field will always be
4740 This function is responsible for adjust the section contents as
4741 necessary, and (if using Rela relocs and generating a
4742 relocatable output file) adjusting the reloc addend as
4745 This function does not have to worry about setting the reloc
4746 address or the reloc symbol index.
4748 LOCAL_SYMS is a pointer to the swapped in local symbols.
4750 LOCAL_SECTIONS is an array giving the section in the input file
4751 corresponding to the st_shndx field of each local symbol.
4753 The global hash table entry for the global symbols can be found
4754 via elf_sym_hashes (input_bfd).
4756 When generating relocatable output, this function must handle
4757 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4758 going to be the section symbol corresponding to the output
4759 section, which means that the addend must be adjusted
4762 /* Return the base VMA address which should be subtracted from real addresses
4763 when resolving @dtpoff relocation.
4764 This is PT_TLS segment p_vaddr. */
4766 /* Return the relocation value for @tpoff relocation
4767 if STT_TLS virtual address is ADDRESS. */
4769 /* Return the relocation value for @gottpoff relocation
4770 if STT_TLS virtual address is ADDRESS. */
4773 gottpoff (struct bfd_link_info
*info
, bfd_vma address
)
4778 /* If tls_sec is NULL, we should have signalled an error already. */
4779 if (elf_hash_table (info
)->tls_sec
== NULL
)
4782 tp_base
= elf_hash_table (info
)->tls_sec
->vma
;
4783 tp_offset
= address
- tp_base
;
4789 patch_tls_desc_to_ie (bfd_byte
*contents
, Elf_Internal_Rela
*rel
, bfd
*ibfd
)
4791 /* TLS_GD/TLS_LD model #1
4792 46 00 00 00 sethi $r0,#0x0
4793 58 00 00 00 ori $r0,$r0,#0x0
4794 40 00 74 00 add $r0,$r0,$gp
4795 04 10 00 00 lwi $r1,[$r0+#0x0]
4796 4b e0 04 01 jral $lp,$r1 */
4798 /* TLS_GD/TLS_LD model #2
4799 46 00 00 00 sethi $r0,#0x0
4800 58 00 00 00 ori $r0,$r0,#0x0
4801 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)]
4802 40 00 74 00 add $r0,$r0,$gp
4803 4b e0 04 01 jral $lp,$r1 */
4805 /* TLS_IE model (non-PIC)
4806 46 00 00 00 sethi $r0,#0x0
4807 04 00 00 00 lwi $r0,[$r0+#0x0]
4808 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4810 /* TLS_IE model (PIC)
4811 46 00 00 00 sethi $r0,#0x0
4812 58 00 00 00 ori $r0,$r0,#0x0
4813 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)]
4814 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4816 /* TLS_GD_TO_IE model
4817 46 00 00 00 sethi $r0,#0x0
4818 58 00 00 00 ori $r0,$r0,#0x0
4819 40 00 74 00 add $r0,$rM,$gp
4820 04 00 00 01 lwi $r0,[$r0+#0x4]
4821 40 00 64 00 add $r0,$r0,$r25 */
4823 bfd_boolean rz
= FALSE
;
4833 0x40007400, /* add $r0,$rM,$gp */
4834 0x04000001, /* lwi $r0,[$r0+#0x4] */
4835 0x40006400, /* add $r0,$r0,$r25 */
4840 { 0x40000000, 0xfe0003ff },
4841 { 0x04000000, 0xfe000000 },
4842 { 0x4be00001, 0xffff83ff },
4847 { 0x38007402, 0xfe007fff },
4848 { 0x40007400, 0xfe007fff },
4849 { 0x4be00001, 0xffff83ff },
4852 unsigned char *p
= contents
+ rel
->r_offset
;
4855 uint32_t regidx
= 0;
4856 insn
= bfd_getb32 (p
);
4857 if (INSN_SETHI
== (0xfe0fffffu
& insn
))
4859 regidx
= 0x1f & (insn
>> 20);
4863 insn
= bfd_getb32 (p
);
4864 if (INSN_ORI
== (0xfe007fffu
& insn
))
4866 regidx
= 0x1f & (insn
>> 20);
4870 if (patch
[2] == bfd_getb32 (p
+ 8)) /* Character instruction. */
4872 /* already patched? */
4873 if ((patch
[0] == (0xfff07fffu
& bfd_getb32 (p
+ 0))) &&
4874 (patch
[1] == bfd_getb32 (p
+ 4)))
4877 else if (mode0
[0].opcode
== (mode0
[0].mask
& bfd_getb32 (p
+ 0)))
4879 if ((mode0
[1].opcode
== (mode0
[1].mask
& bfd_getb32 (p
+ 4))) &&
4880 (mode0
[2].opcode
== (mode0
[2].mask
& bfd_getb32 (p
+ 8))))
4882 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4883 bfd_putb32 (patch
[1], p
+ 4);
4884 bfd_putb32 (patch
[2], p
+ 8);
4888 else if (mode1
[0].opcode
== (mode1
[0].mask
& bfd_getb32 (p
+ 0)))
4890 if ((mode1
[1].opcode
== (mode1
[1].mask
& bfd_getb32 (p
+ 4))) &&
4891 (mode1
[2].opcode
== (mode1
[2].mask
& bfd_getb32 (p
+ 8))))
4893 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
4894 bfd_putb32 (patch
[1], p
+ 4);
4895 bfd_putb32 (patch
[2], p
+ 8);
4902 printf ("%s: %s @ 0x%08x\n", __func__
, bfd_get_filename (ibfd
),
4903 (int) rel
->r_offset
);
4904 BFD_ASSERT(0); /* Unsupported pattern. */
4910 static enum elf_nds32_tls_type
4911 get_tls_type (enum elf_nds32_reloc_type r_type
, struct elf_link_hash_entry
*h
);
4914 ones32 (register unsigned int x
)
4916 /* 32-bit recursive reduction using SWAR...
4917 but first step is mapping 2-bit values
4918 into sum of 2 1-bit values in sneaky way. */
4919 x
-= ((x
>> 1) & 0x55555555);
4920 x
= (((x
>> 2) & 0x33333333) + (x
& 0x33333333));
4921 x
= (((x
>> 4) + x
) & 0x0f0f0f0f);
4924 return (x
& 0x0000003f);
4929 fls (register unsigned int x
)
4931 return ffs (x
& (-x
));
4933 #endif /* !HAVE_FLS */
4935 #define nds32_elf_local_tlsdesc_gotent(bfd) \
4936 (elf_nds32_tdata (bfd)->local_tlsdesc_gotent)
4939 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
4940 struct bfd_link_info
* info
,
4942 asection
* input_section
,
4943 bfd_byte
* contents
,
4944 Elf_Internal_Rela
* relocs
,
4945 Elf_Internal_Sym
* local_syms
,
4946 asection
** local_sections
)
4948 Elf_Internal_Shdr
*symtab_hdr
;
4949 struct elf_link_hash_entry
**sym_hashes
;
4950 Elf_Internal_Rela
*rel
, *relend
;
4951 bfd_boolean ret
= TRUE
; /* Assume success. */
4953 bfd_reloc_status_type r
;
4954 const char *errmsg
= NULL
;
4956 struct elf_link_hash_table
*ehtab
;
4957 struct elf_nds32_link_hash_table
*htab
;
4959 bfd_vma
*local_got_offsets
;
4960 asection
*sgot
, *splt
, *sreloc
;
4961 bfd_vma high_address
;
4962 struct elf_nds32_link_hash_table
*table
;
4963 int eliminate_gc_relocs
;
4964 bfd_vma fpbase_addr
;
4966 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4967 sym_hashes
= elf_sym_hashes (input_bfd
);
4968 ehtab
= elf_hash_table (info
);
4969 htab
= nds32_elf_hash_table (info
);
4970 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
4972 dynobj
= htab
->root
.dynobj
;
4973 local_got_offsets
= elf_local_got_offsets (input_bfd
);
4980 relend
= relocs
+ input_section
->reloc_count
;
4982 table
= nds32_elf_hash_table (info
);
4983 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
4985 /* By this time, we can adjust the value of _SDA_BASE_. */
4986 /* Explain _SDA_BASE_ */
4987 if ((!bfd_link_relocatable (info
)))
4989 is_SDA_BASE_set
= 1;
4990 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
4991 if (r
!= bfd_reloc_ok
)
4995 /* Do TLS model conversion once at first. */
4996 nds32_elf_unify_tls_model (input_bfd
, input_section
, contents
, info
);
4998 /* Use gp as fp to prevent truncated fit. Because in relaxation time
4999 the fp value is set as gp, and it has be reverted for instruction
5001 fpbase_addr
= elf_gp (output_bfd
);
5003 /* Deal with (dynamic) relocations. */
5004 for (rel
= relocs
; rel
< relend
; rel
++)
5006 enum elf_nds32_reloc_type r_type
;
5007 reloc_howto_type
*howto
= NULL
;
5008 unsigned long r_symndx
;
5009 struct elf_link_hash_entry
*h
= NULL
;
5010 Elf_Internal_Sym
*sym
= NULL
;
5013 bfd_vma relocation_sym
= 0xdeadbeef;
5014 Elf_Internal_Rela
*lorel
;
5017 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
5018 ensure it's zero (we use REL relocs, not RELA). Therefore this
5019 should be assigning zero to `addend', but for clarity we use
5022 bfd_vma addend
= rel
->r_addend
;
5023 bfd_vma offset
= rel
->r_offset
;
5025 r_type
= ELF32_R_TYPE (rel
->r_info
);
5026 if (r_type
>= R_NDS32_max
)
5028 /* xgettext:c-format */
5029 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
5031 bfd_set_error (bfd_error_bad_value
);
5036 if (r_type
== R_NDS32_GNU_VTENTRY
5037 || r_type
== R_NDS32_GNU_VTINHERIT
5038 || r_type
== R_NDS32_NONE
5039 || r_type
== R_NDS32_RELA_GNU_VTENTRY
5040 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
5041 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
5042 || r_type
== R_NDS32_DATA
5043 || r_type
== R_NDS32_TRAN
)
5046 /* If we enter the fp-as-gp region. Resolve the address
5048 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
5049 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5053 /* Distance to relocation of best fp-base is encoded in R_SYM. */
5054 dist
= rel
->r_addend
>> 16;
5055 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
5056 local_syms
, symtab_hdr
);
5058 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
5059 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5061 fpbase_addr
= elf_gp (output_bfd
);
5064 /* Skip the relocations used for relaxation. */
5065 /* We have to update LONGCALL and LONGJUMP
5066 relocations when generating the relocatable files. */
5067 if (!bfd_link_relocatable (info
)
5068 && (r_type
>= R_NDS32_RELAX_ENTRY
5069 || (r_type
>= R_NDS32_LONGCALL4
5070 && r_type
<= R_NDS32_LONGJUMP7
)))
5073 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
5074 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5076 /* This is a final link. */
5081 if (r_symndx
< symtab_hdr
->sh_info
)
5084 sym
= local_syms
+ r_symndx
;
5085 sec
= local_sections
[r_symndx
];
5087 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
5088 addend
= rel
->r_addend
;
5090 /* keep symbol location for static TLS_IE GOT entry */
5091 relocation_sym
= relocation
;
5092 if (bfd_link_relocatable (info
))
5094 /* This is a relocatable link. We don't have to change
5095 anything, unless the reloc is against a section symbol,
5096 in which case we have to adjust according to where the
5097 section symbol winds up in the output section. */
5098 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
5099 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
5106 /* External symbol. */
5107 if (bfd_link_relocatable (info
))
5109 bfd_boolean warned
, ignored
, unresolved_reloc
;
5110 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
5112 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
5113 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
5114 relocation
, unresolved_reloc
, warned
,
5117 /* keep symbol location for static TLS_IE GOT entry */
5118 relocation_sym
= relocation
;
5120 /* la $fp, _FP_BASE_ is per-function (region).
5121 Handle it specially. */
5122 switch ((int) r_type
)
5124 case R_NDS32_HI20_RELA
:
5125 case R_NDS32_LO12S0_RELA
:
5126 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5129 if (!bfd_link_pie (info
))
5132 ("%pB: warning: _FP_BASE_ setting insns relaxation failed.",
5135 relocation
= fpbase_addr
;
5138 case R_NDS32_SDA19S0_RELA
:
5139 case R_NDS32_SDA15S0_RELA
:
5140 case R_NDS32_20_RELA
:
5141 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5144 relocation
= fpbase_addr
;
5150 /* Sanity check the address. */
5151 if (offset
> high_address
)
5153 r
= bfd_reloc_outofrange
;
5157 if (r_type
>= R_NDS32_RELAX_ENTRY
)
5160 switch ((int) r_type
)
5162 case R_NDS32_GOTOFF
:
5163 /* Relocation is relative to the start of the global offset
5164 table (for ld24 rx, #uimm24), e.g. access at label+addend
5166 ld24 rx. #label@GOTOFF + addend
5168 case R_NDS32_GOTOFF_HI20
:
5169 case R_NDS32_GOTOFF_LO12
:
5170 case R_NDS32_GOTOFF_LO15
:
5171 case R_NDS32_GOTOFF_LO19
:
5172 BFD_ASSERT (sgot
!= NULL
);
5174 relocation
-= elf_gp (output_bfd
);
5177 case R_NDS32_9_PLTREL
:
5178 case R_NDS32_25_PLTREL
:
5179 /* Relocation is to the entry for this symbol in the
5180 procedure linkage table. */
5182 /* The native assembler will generate a 25_PLTREL reloc
5183 for a local symbol if you assemble a call from one
5184 section to another when using -K pic. */
5188 if (h
->forced_local
)
5191 /* We didn't make a PLT entry for this symbol. This
5192 happens when statically linking PIC code, or when
5193 using -Bsymbolic. */
5194 if (h
->plt
.offset
== (bfd_vma
) - 1)
5197 relocation
= (splt
->output_section
->vma
5198 + splt
->output_offset
+ h
->plt
.offset
);
5201 case R_NDS32_PLT_GOTREL_HI20
:
5202 case R_NDS32_PLT_GOTREL_LO12
:
5203 case R_NDS32_PLT_GOTREL_LO15
:
5204 case R_NDS32_PLT_GOTREL_LO19
:
5205 case R_NDS32_PLT_GOTREL_LO20
:
5208 || h
->plt
.offset
== (bfd_vma
) -1
5209 || (bfd_link_pie (info
) && h
->def_regular
))
5211 /* Maybe we should find better checking to optimize
5212 PIE PLT relocations. */
5213 /* We didn't make a PLT entry for this symbol. This
5214 happens when statically linking PIC code, or when
5215 using -Bsymbolic. */
5217 h
->plt
.offset
= (bfd_vma
) -1; /* Cancel PLT trampoline. */
5218 relocation
-= elf_gp (output_bfd
);
5222 relocation
= (splt
->output_section
->vma
5223 + splt
->output_offset
+ h
->plt
.offset
);
5225 relocation
-= elf_gp (output_bfd
);
5228 case R_NDS32_PLTREL_HI20
:
5229 case R_NDS32_PLTREL_LO12
:
5231 /* Relocation is to the entry for this symbol in the
5232 procedure linkage table. */
5234 /* The native assembler will generate a 25_PLTREL reloc
5235 for a local symbol if you assemble a call from one
5236 section to another when using -K pic. */
5240 if (h
->forced_local
)
5243 if (h
->plt
.offset
== (bfd_vma
) - 1)
5244 /* We didn't make a PLT entry for this symbol. This
5245 happens when statically linking PIC code, or when
5246 using -Bsymbolic. */
5252 relocation
= (splt
->output_section
->vma
5253 + splt
->output_offset
5254 + h
->plt
.offset
+ 4)
5255 - (input_section
->output_section
->vma
5256 + input_section
->output_offset
5261 case R_NDS32_GOTPC20
:
5262 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5263 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
5264 relocation
= elf_gp (output_bfd
);
5267 case R_NDS32_GOTPC_HI20
:
5268 case R_NDS32_GOTPC_LO12
:
5269 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5271 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
5272 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
5275 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
5276 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */
5277 relocation
= elf_gp (output_bfd
);
5278 relocation
-= (input_section
->output_section
->vma
5279 + input_section
->output_offset
+ rel
->r_offset
);
5284 case R_NDS32_GOT_HI20
:
5285 case R_NDS32_GOT_LO12
:
5286 case R_NDS32_GOT_LO15
:
5287 case R_NDS32_GOT_LO19
:
5288 /* Relocation is to the entry for this symbol in the global
5290 BFD_ASSERT (sgot
!= NULL
);
5294 /* External symbol */
5297 off
= h
->got
.offset
;
5298 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5299 dyn
= htab
->root
.dynamic_sections_created
;
5300 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
5301 bfd_link_pic (info
),
5303 || (bfd_link_pic (info
)
5306 || h
->forced_local
) && h
->def_regular
))
5308 /* This is actually a static link, or it is a
5309 -Bsymbolic link and the symbol is defined
5310 locally, or the symbol was forced to be local
5311 because of a version file. We must initialize
5312 this entry in the global offset table. Since the
5313 offset must always be a multiple of 4, we use the
5314 least significant bit to record whether we have
5315 initialized it already.
5317 When doing a dynamic link, we create a .rela.got
5318 relocation entry to initialize the value. This
5319 is done in the finish_dynamic_symbol routine. */
5320 if ((off
& 1) != 0) /* clear LSB */
5324 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5328 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5329 - elf_gp (output_bfd
);
5336 BFD_ASSERT (local_got_offsets
!= NULL
5337 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5339 off
= local_got_offsets
[r_symndx
];
5341 /* The offset must always be a multiple of 4. We use
5342 the least significant bit to record whether we have
5343 already processed this entry. */
5344 if ((off
& 1) != 0) /* clear LSB */
5348 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5350 if (bfd_link_pic (info
))
5353 Elf_Internal_Rela outrel
;
5355 /* We need to generate a R_NDS32_RELATIVE reloc
5356 for the dynamic linker. */
5357 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5358 BFD_ASSERT (srelgot
!= NULL
);
5360 outrel
.r_offset
= (elf_gp (output_bfd
)
5361 + sgot
->output_offset
+ off
);
5362 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5363 outrel
.r_addend
= relocation
;
5364 loc
= srelgot
->contents
;
5366 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5367 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5368 ++srelgot
->reloc_count
;
5370 local_got_offsets
[r_symndx
] |= 1;
5372 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5373 - elf_gp (output_bfd
);
5378 case R_NDS32_16_RELA
:
5379 case R_NDS32_20_RELA
:
5380 case R_NDS32_5_RELA
:
5381 case R_NDS32_32_RELA
:
5382 case R_NDS32_9_PCREL_RELA
:
5383 case R_NDS32_WORD_9_PCREL_RELA
:
5384 case R_NDS32_10_UPCREL_RELA
:
5385 case R_NDS32_15_PCREL_RELA
:
5386 case R_NDS32_17_PCREL_RELA
:
5387 case R_NDS32_25_PCREL_RELA
:
5388 case R_NDS32_HI20_RELA
:
5389 case R_NDS32_LO12S3_RELA
:
5390 case R_NDS32_LO12S2_RELA
:
5391 case R_NDS32_LO12S2_DP_RELA
:
5392 case R_NDS32_LO12S2_SP_RELA
:
5393 case R_NDS32_LO12S1_RELA
:
5394 case R_NDS32_LO12S0_RELA
:
5395 case R_NDS32_LO12S0_ORI_RELA
:
5396 if (bfd_link_pic (info
) && r_symndx
!= 0
5397 && (input_section
->flags
& SEC_ALLOC
) != 0
5398 && (eliminate_gc_relocs
== 0
5399 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
5400 && ((r_type
!= R_NDS32_9_PCREL_RELA
5401 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
5402 && r_type
!= R_NDS32_10_UPCREL_RELA
5403 && r_type
!= R_NDS32_15_PCREL_RELA
5404 && r_type
!= R_NDS32_17_PCREL_RELA
5405 && r_type
!= R_NDS32_25_PCREL_RELA
5406 && !(r_type
== R_NDS32_32_RELA
5407 && strcmp (input_section
->name
, ".eh_frame") == 0))
5408 || (h
!= NULL
&& h
->dynindx
!= -1
5409 && (!info
->symbolic
|| !h
->def_regular
))))
5411 Elf_Internal_Rela outrel
;
5412 bfd_boolean skip
, relocate
;
5415 /* When generating a shared object, these relocations
5416 are copied into the output file to be resolved at run
5423 name
= bfd_elf_string_from_elf_section
5424 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
5425 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
5429 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
5430 && strcmp (bfd_section_name (input_section
),
5433 sreloc
= bfd_get_section_by_name (dynobj
, name
);
5434 BFD_ASSERT (sreloc
!= NULL
);
5440 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
5444 if (outrel
.r_offset
== (bfd_vma
) - 1)
5446 else if (outrel
.r_offset
== (bfd_vma
) - 2)
5447 skip
= TRUE
, relocate
= TRUE
;
5448 outrel
.r_offset
+= (input_section
->output_section
->vma
5449 + input_section
->output_offset
);
5452 memset (&outrel
, 0, sizeof outrel
);
5453 else if (r_type
== R_NDS32_17_PCREL_RELA
5454 || r_type
== R_NDS32_15_PCREL_RELA
5455 || r_type
== R_NDS32_25_PCREL_RELA
)
5457 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
5458 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5459 outrel
.r_addend
= rel
->r_addend
;
5463 /* h->dynindx may be -1 if this symbol was marked to
5466 || ((info
->symbolic
|| h
->dynindx
== -1)
5468 || (bfd_link_pie (info
) && h
->def_regular
))
5471 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5472 outrel
.r_addend
= relocation
+ rel
->r_addend
;
5476 h
->plt
.offset
= (bfd_vma
) -1; /* cancel PLT trampoline. */
5478 BFD_ASSERT (sgot
!= NULL
);
5479 /* If we did not allocate got entry for the symbol,
5480 we can not fill the nonexistent got entry. */
5481 if (h
->got
.offset
!= (bfd_vma
) -1
5482 && (h
->got
.offset
& 1) == 0)
5484 bfd_put_32 (output_bfd
, outrel
.r_addend
,
5485 sgot
->contents
+ h
->got
.offset
);
5491 if (h
->dynindx
== -1)
5494 (_("%pB: relocation %s against `%s' can not be used when "
5495 "making a shared object; recompile with -fPIC"),
5496 input_bfd
, nds32_elf_howto_table
[r_type
].name
, h
->root
.root
.string
);
5497 bfd_set_error (bfd_error_bad_value
);
5501 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5502 outrel
.r_addend
= rel
->r_addend
;
5506 loc
= sreloc
->contents
;
5507 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
5508 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5509 ++sreloc
->reloc_count
;
5511 /* If this reloc is against an external symbol, we do
5512 not want to fiddle with the addend. Otherwise, we
5513 need to include the symbol value so that it becomes
5514 an addend for the dynamic reloc. */
5520 case R_NDS32_25_ABS_RELA
:
5521 if (bfd_link_pic (info
))
5524 (_("%pB: warning: %s unsupported in shared mode"),
5525 input_bfd
, "R_NDS32_25_ABS_RELA");
5530 case R_NDS32_9_PCREL
:
5531 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5533 sec
, relocation
, addend
);
5537 /* We allow an arbitrary number of HI20 relocs before the
5538 LO12 reloc. This permits gcc to emit the HI and LO relocs
5540 for (lorel
= rel
+ 1;
5542 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5545 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5546 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5547 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5548 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5550 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5551 contents
, relocation
+ addend
);
5555 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5556 contents
, offset
, relocation
,
5560 case R_NDS32_GOT17S2_RELA
:
5561 case R_NDS32_GOT15S2_RELA
:
5562 BFD_ASSERT (sgot
!= NULL
);
5568 off
= h
->got
.offset
;
5569 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5571 dyn
= htab
->root
.dynamic_sections_created
;
5572 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5573 (dyn
, bfd_link_pic (info
), h
)
5574 || (bfd_link_pic (info
)
5580 /* This is actually a static link, or it is a
5581 -Bsymbolic link and the symbol is defined
5582 locally, or the symbol was forced to be local
5583 because of a version file. We must initialize
5584 this entry in the global offset table. Since the
5585 offset must always be a multiple of 4, we use the
5586 least significant bit to record whether we have
5587 initialized it already.
5589 When doing a dynamic link, we create a .rela.got
5590 relocation entry to initialize the value. This
5591 is done in the finish_dynamic_symbol routine. */
5596 bfd_put_32 (output_bfd
, relocation
,
5597 sgot
->contents
+ off
);
5606 BFD_ASSERT (local_got_offsets
!= NULL
5607 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5609 off
= local_got_offsets
[r_symndx
];
5611 /* The offset must always be a multiple of 4. We use
5612 the least significant bit to record whether we have
5613 already processed this entry. */
5618 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5620 if (bfd_link_pic (info
))
5623 Elf_Internal_Rela outrel
;
5625 /* We need to generate a R_NDS32_RELATIVE reloc
5626 for the dynamic linker. */
5627 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5628 BFD_ASSERT (srelgot
!= NULL
);
5630 outrel
.r_offset
= (elf_gp (output_bfd
)
5631 + sgot
->output_offset
+ off
);
5632 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5633 outrel
.r_addend
= relocation
;
5634 loc
= srelgot
->contents
;
5636 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5637 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5638 ++srelgot
->reloc_count
;
5640 local_got_offsets
[r_symndx
] |= 1;
5643 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5644 - elf_gp (output_bfd
);
5646 if (relocation
& align
)
5648 /* Incorrect alignment. */
5650 (_("%pB: warning: unaligned access to GOT entry"), input_bfd
);
5652 r
= bfd_reloc_dangerous
;
5657 case R_NDS32_SDA16S3_RELA
:
5658 case R_NDS32_SDA15S3_RELA
:
5659 case R_NDS32_SDA15S3
:
5663 case R_NDS32_SDA17S2_RELA
:
5664 case R_NDS32_SDA15S2_RELA
:
5665 case R_NDS32_SDA12S2_SP_RELA
:
5666 case R_NDS32_SDA12S2_DP_RELA
:
5667 case R_NDS32_SDA15S2
:
5668 case R_NDS32_SDA_FP7U2_RELA
:
5672 case R_NDS32_SDA18S1_RELA
:
5673 case R_NDS32_SDA15S1_RELA
:
5674 case R_NDS32_SDA15S1
:
5678 case R_NDS32_SDA19S0_RELA
:
5679 case R_NDS32_SDA15S0_RELA
:
5680 case R_NDS32_SDA15S0
:
5683 BFD_ASSERT (sec
!= NULL
);
5685 /* If the symbol is in the abs section, the out_bfd will be null.
5686 This happens when the relocation has a symbol@GOTOFF. */
5687 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5688 if (r
!= bfd_reloc_ok
)
5691 (_("%pB: warning: relocate SDA_BASE failed"), input_bfd
);
5696 /* At this point `relocation' contains the object's
5698 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5700 relocation
-= fpbase_addr
;
5704 /* Now it contains the offset from _SDA_BASE_. */
5706 /* Make sure alignment is correct. */
5708 if (relocation
& align
)
5710 /* Incorrect alignment. */
5712 /* xgettext:c-format */
5713 (_("%pB(%pA): warning: unaligned small data access"
5715 input_bfd
, input_section
, r_type
);
5721 case R_NDS32_17IFC_PCREL_RELA
:
5722 case R_NDS32_10IFCU_PCREL_RELA
:
5726 case R_NDS32_TLS_LE_HI20
:
5727 case R_NDS32_TLS_LE_LO12
:
5728 case R_NDS32_TLS_LE_20
:
5729 case R_NDS32_TLS_LE_15S0
:
5730 case R_NDS32_TLS_LE_15S1
:
5731 case R_NDS32_TLS_LE_15S2
:
5732 /* We do not have garbage collection for got entries.
5733 Therefore, IE to LE may have one empty entry, and DESC to
5735 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5736 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5739 case R_NDS32_TLS_IE_HI20
:
5740 case R_NDS32_TLS_IE_LO12S2
:
5741 case R_NDS32_TLS_DESC_HI20
:
5742 case R_NDS32_TLS_DESC_LO12
:
5743 case R_NDS32_TLS_IE_LO12
:
5744 case R_NDS32_TLS_IEGP_HI20
:
5745 case R_NDS32_TLS_IEGP_LO12
:
5746 case R_NDS32_TLS_IEGP_LO12S2
:
5748 /* Relocation is to the entry for this symbol in the global
5750 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
5752 Elf_Internal_Rela outrel
;
5756 eff_tls_type
= org_tls_type
= get_tls_type (r_type
, h
);
5758 BFD_ASSERT (sgot
!= NULL
);
5763 off
= h
->got
.offset
;
5764 BFD_ASSERT (off
!= (bfd_vma
) -1);
5765 dyn
= htab
->root
.dynamic_sections_created
;
5766 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5767 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5768 && (!bfd_link_pic (info
)
5769 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5774 BFD_ASSERT (local_got_offsets
!= NULL
5775 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5776 off
= local_got_offsets
[r_symndx
];
5777 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5780 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5782 if (1 < ones32 (tls_type
))
5784 eff_tls_type
= 1 << (fls (tls_type
) - 1);
5785 /* TLS model shall be handled in nds32_elf_unify_tls_model (). */
5787 /* TLS model X -> LE is not implement yet!
5789 if (eff_tls_type
== GOT_TLS_LE
)
5791 eff_tls_type
= 1 << (fls (tls_type
^ eff_tls_type
) - 1);
5795 /* The offset must always be a multiple of 4. We use
5796 the least significant bit to record whether we have
5797 already processed this entry. */
5798 bfd_boolean need_relocs
= FALSE
;
5799 srelgot
= ehtab
->srelgot
;
5800 if ((bfd_link_pic (info
) || indx
!= 0)
5801 && (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5802 || h
->root
.type
!= bfd_link_hash_undefweak
))
5805 BFD_ASSERT (srelgot
!= NULL
);
5813 if (eff_tls_type
& GOT_TLS_DESC
)
5815 relocation
-= elf_gp (output_bfd
);
5816 if ((R_NDS32_TLS_DESC_HI20
== r_type
) && (!need_relocs
))
5818 /* TLS model shall be converted. */
5822 else if (eff_tls_type
& GOT_TLS_IEGP
)
5824 relocation
-= elf_gp (output_bfd
);
5829 if ((eff_tls_type
& GOT_TLS_LE
) && (tls_type
^ eff_tls_type
))
5831 /* TLS model workaround shall be applied. */
5834 else if (eff_tls_type
& (GOT_TLS_IE
| GOT_TLS_IEGP
))
5836 if (eff_tls_type
& GOT_TLS_IEGP
)
5837 relocation
-= elf_gp(output_bfd
);
5842 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5844 outrel
.r_addend
= 0;
5845 outrel
.r_offset
= (sgot
->output_section
->vma
5846 + sgot
->output_offset
+ off
);
5847 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_TPOFF
);
5849 elf32_nds32_add_dynreloc (output_bfd
, info
, srelgot
,
5854 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5855 sgot
->contents
+ off
);
5858 else if (eff_tls_type
& GOT_TLS_DESC
)
5860 relocation
-= elf_gp (output_bfd
);
5864 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5866 outrel
.r_addend
= 0;
5867 outrel
.r_offset
= (sgot
->output_section
->vma
5868 + sgot
->output_offset
+ off
);
5869 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_DESC
);
5871 if (htab
->tls_desc_trampoline
)
5874 srelplt
= ehtab
->srelplt
;
5875 loc
= srelplt
->contents
;
5876 loc
+= htab
->next_tls_desc_index
++ * sizeof (Elf32_External_Rela
);
5877 BFD_ASSERT (loc
+ sizeof (Elf32_External_Rela
)
5878 <= srelplt
->contents
+ srelplt
->size
);
5880 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5884 loc
= srelgot
->contents
;
5885 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5886 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5887 ++srelgot
->reloc_count
;
5893 bfd_put_32 (output_bfd
, 0xdeadbeef,
5894 sgot
->contents
+ off
);
5895 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5896 sgot
->contents
+ off
+ 4);
5897 patch_tls_desc_to_ie (contents
, rel
, input_bfd
);
5903 /* TLS model workaround shall be applied. */
5910 local_got_offsets
[r_symndx
] |= 1;
5914 /* DON'T fall through. */
5917 /* OLD_NDS32_RELOC. */
5919 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5920 contents
, offset
, relocation
, addend
);
5924 switch ((int) r_type
)
5926 case R_NDS32_20_RELA
:
5927 case R_NDS32_5_RELA
:
5928 case R_NDS32_9_PCREL_RELA
:
5929 case R_NDS32_WORD_9_PCREL_RELA
:
5930 case R_NDS32_10_UPCREL_RELA
:
5931 case R_NDS32_15_PCREL_RELA
:
5932 case R_NDS32_17_PCREL_RELA
:
5933 case R_NDS32_25_PCREL_RELA
:
5934 case R_NDS32_25_ABS_RELA
:
5935 case R_NDS32_HI20_RELA
:
5936 case R_NDS32_LO12S3_RELA
:
5937 case R_NDS32_LO12S2_RELA
:
5938 case R_NDS32_LO12S2_DP_RELA
:
5939 case R_NDS32_LO12S2_SP_RELA
:
5940 case R_NDS32_LO12S1_RELA
:
5941 case R_NDS32_LO12S0_RELA
:
5942 case R_NDS32_LO12S0_ORI_RELA
:
5943 case R_NDS32_SDA16S3_RELA
:
5944 case R_NDS32_SDA17S2_RELA
:
5945 case R_NDS32_SDA18S1_RELA
:
5946 case R_NDS32_SDA19S0_RELA
:
5947 case R_NDS32_SDA15S3_RELA
:
5948 case R_NDS32_SDA15S2_RELA
:
5949 case R_NDS32_SDA12S2_DP_RELA
:
5950 case R_NDS32_SDA12S2_SP_RELA
:
5951 case R_NDS32_SDA15S1_RELA
:
5952 case R_NDS32_SDA15S0_RELA
:
5953 case R_NDS32_SDA_FP7U2_RELA
:
5954 case R_NDS32_9_PLTREL
:
5955 case R_NDS32_25_PLTREL
:
5957 case R_NDS32_GOT_HI20
:
5958 case R_NDS32_GOT_LO12
:
5959 case R_NDS32_GOT_LO15
:
5960 case R_NDS32_GOT_LO19
:
5961 case R_NDS32_GOT15S2_RELA
:
5962 case R_NDS32_GOT17S2_RELA
:
5963 case R_NDS32_GOTPC20
:
5964 case R_NDS32_GOTPC_HI20
:
5965 case R_NDS32_GOTPC_LO12
:
5966 case R_NDS32_GOTOFF
:
5967 case R_NDS32_GOTOFF_HI20
:
5968 case R_NDS32_GOTOFF_LO12
:
5969 case R_NDS32_GOTOFF_LO15
:
5970 case R_NDS32_GOTOFF_LO19
:
5971 case R_NDS32_PLTREL_HI20
:
5972 case R_NDS32_PLTREL_LO12
:
5973 case R_NDS32_PLT_GOTREL_HI20
:
5974 case R_NDS32_PLT_GOTREL_LO12
:
5975 case R_NDS32_PLT_GOTREL_LO15
:
5976 case R_NDS32_PLT_GOTREL_LO19
:
5977 case R_NDS32_PLT_GOTREL_LO20
:
5978 case R_NDS32_17IFC_PCREL_RELA
:
5979 case R_NDS32_10IFCU_PCREL_RELA
:
5980 case R_NDS32_TLS_LE_HI20
:
5981 case R_NDS32_TLS_LE_LO12
:
5982 case R_NDS32_TLS_IE_HI20
:
5983 case R_NDS32_TLS_IE_LO12S2
:
5984 case R_NDS32_TLS_LE_20
:
5985 case R_NDS32_TLS_LE_15S0
:
5986 case R_NDS32_TLS_LE_15S1
:
5987 case R_NDS32_TLS_LE_15S2
:
5988 case R_NDS32_TLS_DESC_HI20
:
5989 case R_NDS32_TLS_DESC_LO12
:
5990 case R_NDS32_TLS_IE_LO12
:
5991 case R_NDS32_TLS_IEGP_HI20
:
5992 case R_NDS32_TLS_IEGP_LO12
:
5993 case R_NDS32_TLS_IEGP_LO12S2
:
5994 /* Instruction related relocs must handle endian properly. */
5995 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
5996 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
5997 input_section
, contents
,
5998 rel
->r_offset
, relocation
,
6003 /* All other relocs can use default handler. */
6004 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
6005 contents
, rel
->r_offset
,
6006 relocation
, rel
->r_addend
);
6012 if (r
!= bfd_reloc_ok
)
6014 /* FIXME: This should be generic enough to go in a utility. */
6018 name
= h
->root
.root
.string
;
6021 name
= bfd_elf_string_from_elf_section
6022 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
6023 if (name
== NULL
|| *name
== '\0')
6024 name
= bfd_section_name (sec
);
6032 case bfd_reloc_overflow
:
6033 (*info
->callbacks
->reloc_overflow
)
6034 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
6035 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
6038 case bfd_reloc_undefined
:
6039 (*info
->callbacks
->undefined_symbol
)
6040 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
6043 case bfd_reloc_outofrange
:
6044 errmsg
= _("internal error: out of range error");
6047 case bfd_reloc_notsupported
:
6048 errmsg
= _("internal error: unsupported relocation error");
6051 case bfd_reloc_dangerous
:
6052 errmsg
= _("internal error: dangerous error");
6056 errmsg
= _("internal error: unknown error");
6060 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
6061 input_section
, offset
);
6067 /* Resotre header size to avoid overflow load. */
6068 if (elf_nds32_tdata (input_bfd
)->hdr_size
!= 0)
6069 symtab_hdr
->sh_size
= elf_nds32_tdata (input_bfd
)->hdr_size
;
6074 /* Finish up dynamic symbol handling. We set the contents of various
6075 dynamic sections here. */
6078 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
6079 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
6081 struct elf_link_hash_table
*ehtab
;
6082 struct elf_nds32_link_hash_entry
*hent
;
6085 ehtab
= elf_hash_table (info
);
6086 hent
= (struct elf_nds32_link_hash_entry
*) h
;
6088 if (h
->plt
.offset
!= (bfd_vma
) - 1)
6096 bfd_vma local_plt_offset
;
6097 Elf_Internal_Rela rela
;
6099 /* This symbol has an entry in the procedure linkage table. Set
6102 BFD_ASSERT (h
->dynindx
!= -1);
6105 sgot
= ehtab
->sgotplt
;
6106 srela
= ehtab
->srelplt
;
6107 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
6109 /* Get the index in the procedure linkage table which
6110 corresponds to this symbol. This is the index of this symbol
6111 in all the symbols for which we are making plt entries. The
6112 first entry in the procedure linkage table is reserved. */
6113 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
6115 /* Get the offset into the .got table of the entry that
6116 corresponds to this function. Each .got entry is 4 bytes.
6117 The first three are reserved. */
6118 got_offset
= (plt_index
+ 3) * 4;
6120 /* Fill in the entry in the procedure linkage table. */
6121 if (!bfd_link_pic (info
))
6125 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
6126 + sgot
->output_offset
+ got_offset
) >> 12)
6128 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6130 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
6131 + sgot
->output_offset
+ got_offset
) & 0x0fff)
6133 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6135 insn
= PLT_ENTRY_WORD2
;
6136 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6138 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
6139 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6141 insn
= PLT_ENTRY_WORD4
6142 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
6143 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6144 local_plt_offset
= 12;
6148 /* sda_base must be set at this time. */
6152 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
6153 - elf_gp (output_bfd
);
6154 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
6155 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6157 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
6158 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6160 insn
= PLT_PIC_ENTRY_WORD2
;
6161 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6163 insn
= PLT_PIC_ENTRY_WORD3
;
6164 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6166 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
6167 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6169 insn
= PLT_PIC_ENTRY_WORD5
6170 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
6171 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
6173 local_plt_offset
= 16;
6176 /* Fill in the entry in the global offset table,
6177 so it will fall through to the next instruction for the first time. */
6178 bfd_put_32 (output_bfd
,
6179 (splt
->output_section
->vma
+ splt
->output_offset
6180 + h
->plt
.offset
+ local_plt_offset
),
6181 sgot
->contents
+ got_offset
);
6183 /* Fill in the entry in the .rela.plt section. */
6184 rela
.r_offset
= (sgot
->output_section
->vma
6185 + sgot
->output_offset
+ got_offset
);
6186 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
6188 loc
= srela
->contents
;
6189 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
6190 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6192 if (!h
->def_regular
)
6194 /* Mark the symbol as undefined, rather than as defined in
6195 the .plt section. Leave the value alone. */
6196 sym
->st_shndx
= SHN_UNDEF
;
6197 if (!h
->ref_regular_nonweak
)
6202 if (h
->got
.offset
!= (bfd_vma
) - 1
6203 && hent
->tls_type
== GOT_NORMAL
)
6207 Elf_Internal_Rela rela
;
6209 /* This symbol has an entry in the global offset table.
6213 srelagot
= ehtab
->srelgot
;
6214 BFD_ASSERT (sgot
!= NULL
&& srelagot
!= NULL
);
6216 rela
.r_offset
= (sgot
->output_section
->vma
6217 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
6219 /* If this is a -Bsymbolic link, and the symbol is defined
6220 locally, we just want to emit a RELATIVE reloc. Likewise if
6221 the symbol was forced to be local because of a version file.
6222 The entry in the global offset table will already have been
6223 initialized in the relocate_section function. */
6224 if ((bfd_link_pic (info
)
6225 && (info
->symbolic
|| h
->dynindx
== -1 || h
->forced_local
)
6227 || (bfd_link_pie (info
) && h
->def_regular
))
6229 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
6230 rela
.r_addend
= (h
->root
.u
.def
.value
6231 + h
->root
.u
.def
.section
->output_section
->vma
6232 + h
->root
.u
.def
.section
->output_offset
);
6234 if ((h
->got
.offset
& 1) == 0)
6236 bfd_put_32 (output_bfd
, rela
.r_addend
,
6237 sgot
->contents
+ h
->got
.offset
);
6242 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
6243 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
6244 sgot
->contents
+ h
->got
.offset
);
6245 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
6249 loc
= srelagot
->contents
;
6250 loc
+= srelagot
->reloc_count
* sizeof (Elf32_External_Rela
);
6251 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6252 ++srelagot
->reloc_count
;
6253 BFD_ASSERT (loc
< (srelagot
->contents
+ srelagot
->size
));
6259 Elf_Internal_Rela rela
;
6261 /* This symbols needs a copy reloc. Set it up. */
6263 BFD_ASSERT (h
->dynindx
!= -1
6264 && (h
->root
.type
== bfd_link_hash_defined
6265 || h
->root
.type
== bfd_link_hash_defweak
));
6267 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
6268 BFD_ASSERT (s
!= NULL
);
6270 rela
.r_offset
= (h
->root
.u
.def
.value
6271 + h
->root
.u
.def
.section
->output_section
->vma
6272 + h
->root
.u
.def
.section
->output_offset
);
6273 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
6276 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
6277 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6281 /* Mark some specially defined symbols as absolute. */
6282 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
6283 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
6284 sym
->st_shndx
= SHN_ABS
;
6290 /* Finish up the dynamic sections. */
6293 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6298 struct elf_link_hash_table
*ehtab
;
6299 struct elf_nds32_link_hash_table
*htab
;
6301 ehtab
= elf_hash_table (info
);
6302 htab
= nds32_elf_hash_table (info
);
6306 dynobj
= elf_hash_table (info
)->dynobj
;
6308 sgotplt
= ehtab
->sgotplt
;
6309 /* A broken linker script might have discarded the dynamic sections.
6310 Catch this here so that we do not seg-fault later on. */
6311 if (sgotplt
!= NULL
&& bfd_is_abs_section (sgotplt
->output_section
))
6313 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
6315 if (elf_hash_table (info
)->dynamic_sections_created
)
6318 Elf32_External_Dyn
*dyncon
, *dynconend
;
6320 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6322 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6323 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6325 for (; dyncon
< dynconend
; dyncon
++)
6327 Elf_Internal_Dyn dyn
;
6330 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
6338 /* name = ".got"; */
6339 s
= ehtab
->sgot
->output_section
;
6342 s
= ehtab
->srelplt
->output_section
;
6344 BFD_ASSERT (s
!= NULL
);
6345 dyn
.d_un
.d_ptr
= s
->vma
;
6346 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6350 s
= ehtab
->srelplt
->output_section
;
6351 BFD_ASSERT (s
!= NULL
);
6352 dyn
.d_un
.d_val
= s
->size
;
6353 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6357 /* My reading of the SVR4 ABI indicates that the
6358 procedure linkage table relocs (DT_JMPREL) should be
6359 included in the overall relocs (DT_RELA). This is
6360 what Solaris does. However, UnixWare can not handle
6361 that case. Therefore, we override the DT_RELASZ entry
6362 here to make it not include the JMPREL relocs. Since
6363 the linker script arranges for .rela.plt to follow all
6364 other relocation sections, we don't have to worry
6365 about changing the DT_RELA entry. */
6366 if (ehtab
->srelplt
!= NULL
)
6368 s
= ehtab
->srelplt
->output_section
;
6369 dyn
.d_un
.d_val
-= s
->size
;
6371 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6374 case DT_TLSDESC_PLT
:
6375 s
= htab
->root
.splt
;
6376 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6377 + htab
->root
.tlsdesc_plt
);
6378 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6381 case DT_TLSDESC_GOT
:
6382 s
= htab
->root
.sgot
;
6383 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6384 + htab
->root
.tlsdesc_got
);
6385 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6390 /* Fill in the first entry in the procedure linkage table. */
6392 if (splt
&& splt
->size
> 0)
6394 if (bfd_link_pic (info
))
6399 offset
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4
6400 - elf_gp (output_bfd
);
6401 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
6402 bfd_putb32 (insn
, splt
->contents
);
6404 /* here has a typo? */
6405 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
6406 bfd_putb32 (insn
, splt
->contents
+ 4);
6408 insn
= PLT0_PIC_ENTRY_WORD2
;
6409 bfd_putb32 (insn
, splt
->contents
+ 8);
6411 insn
= PLT0_PIC_ENTRY_WORD3
;
6412 bfd_putb32 (insn
, splt
->contents
+ 12);
6414 insn
= PLT0_PIC_ENTRY_WORD4
;
6415 bfd_putb32 (insn
, splt
->contents
+ 16);
6417 insn
= PLT0_PIC_ENTRY_WORD5
;
6418 bfd_putb32 (insn
, splt
->contents
+ 20);
6425 /* addr = .got + 4 */
6426 addr
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4;
6427 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
6428 bfd_putb32 (insn
, splt
->contents
);
6430 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
6431 bfd_putb32 (insn
, splt
->contents
+ 4);
6433 insn
= PLT0_ENTRY_WORD2
;
6434 bfd_putb32 (insn
, splt
->contents
+ 8);
6436 insn
= PLT0_ENTRY_WORD3
;
6437 bfd_putb32 (insn
, splt
->contents
+ 12);
6439 insn
= PLT0_ENTRY_WORD4
;
6440 bfd_putb32 (insn
, splt
->contents
+ 16);
6443 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
6447 if (htab
->root
.tlsdesc_plt
)
6449 /* Calculate addresses. */
6450 asection
*sgot
= sgot
= ehtab
->sgot
;
6451 bfd_vma pltgot
= sgotplt
->output_section
->vma
6452 + sgotplt
->output_offset
;
6453 bfd_vma tlsdesc_got
= sgot
->output_section
->vma
+ sgot
->output_offset
6454 + htab
->root
.tlsdesc_got
;
6456 /* Get GP offset. */
6457 pltgot
-= elf_gp (output_bfd
) - 4; /* PLTGOT[1] */
6458 tlsdesc_got
-= elf_gp (output_bfd
);
6460 /* Do relocation. */
6461 dl_tlsdesc_lazy_trampoline
[0] += ((1 << 20) - 1) & (tlsdesc_got
>> 12);
6462 dl_tlsdesc_lazy_trampoline
[1] += 0xfff & tlsdesc_got
;
6463 dl_tlsdesc_lazy_trampoline
[4] += ((1 << 20) - 1) & (pltgot
>> 12);
6464 dl_tlsdesc_lazy_trampoline
[5] += 0xfff & pltgot
;
6467 nds32_put_trampoline (splt
->contents
+ htab
->root
.tlsdesc_plt
,
6468 dl_tlsdesc_lazy_trampoline
,
6469 ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
));
6473 /* Fill in the first three entries in the global offset table. */
6474 if (sgotplt
&& sgotplt
->size
> 0)
6477 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
6479 bfd_put_32 (output_bfd
,
6480 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
6482 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
6483 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
6485 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
6492 /* Set the right machine number. */
6495 nds32_elf_object_p (bfd
*abfd
)
6497 static unsigned int cur_arch
= 0;
6499 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
6501 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
6502 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
6509 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
6512 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
6514 case E_NDS_ARCH_STAR_V2_0
:
6515 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
6517 case E_NDS_ARCH_STAR_V3_0
:
6518 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
6520 case E_NDS_ARCH_STAR_V3_M
:
6521 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
6528 /* Store the machine number in the flags field. */
6531 nds32_elf_final_write_processing (bfd
*abfd
)
6534 static unsigned int cur_mach
= 0;
6536 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
6538 cur_mach
= bfd_get_mach (abfd
);
6544 /* Only happen when object is empty, since the case is abandon. */
6546 val
|= E_NDS_ABI_AABI
;
6547 val
|= E_NDS32_ELF_VER_1_4
;
6552 case bfd_mach_n1h_v2
:
6553 val
= E_NDS_ARCH_STAR_V2_0
;
6555 case bfd_mach_n1h_v3
:
6556 val
= E_NDS_ARCH_STAR_V3_0
;
6558 case bfd_mach_n1h_v3m
:
6559 val
= E_NDS_ARCH_STAR_V3_M
;
6566 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
6567 elf_elfheader (abfd
)->e_flags
|= val
;
6568 return _bfd_elf_final_write_processing (abfd
);
6571 /* Function to keep NDS32 specific file flags. */
6574 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
6576 BFD_ASSERT (!elf_flags_init (abfd
)
6577 || elf_elfheader (abfd
)->e_flags
== flags
);
6579 elf_elfheader (abfd
)->e_flags
= flags
;
6580 elf_flags_init (abfd
) = TRUE
;
6585 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
6587 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
6589 /* From 0.9 to 1.0. */
6590 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
6592 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6593 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6594 if (arch
== E_NDS_ARCH_STAR_V1_0
)
6601 /* From 1.0 to 2.0. */
6602 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
6604 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
6605 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
6607 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6608 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6613 nds32_check_vec_size (bfd
*ibfd
)
6615 static unsigned int nds32_vec_size
= 0;
6617 asection
*sec_t
= NULL
;
6618 bfd_byte
*contents
= NULL
;
6620 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
6622 if (sec_t
&& sec_t
->size
>= 4)
6624 /* Get vec_size in file. */
6625 unsigned int flag_t
;
6627 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
6628 flag_t
= bfd_get_32 (ibfd
, contents
);
6630 /* The value could only be 4 or 16. */
6632 if (!nds32_vec_size
)
6633 /* Set if not set yet. */
6634 nds32_vec_size
= (flag_t
& 0x3);
6635 else if (nds32_vec_size
!= (flag_t
& 0x3))
6638 /* xgettext:c-format */
6639 (_("%pB: ISR vector size mismatch"
6640 " with previous modules, previous %u-byte, current %u-byte"),
6642 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
6643 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
6647 /* Only keep the first vec_size section. */
6648 sec_t
->flags
|= SEC_EXCLUDE
;
6654 /* Merge backend specific data from an object file to the output
6655 object file when linking. */
6658 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6660 bfd
*obfd
= info
->output_bfd
;
6663 flagword out_16regs
;
6665 flagword out_no_mac
;
6667 flagword out_version
;
6668 flagword in_version
;
6669 flagword out_fpu_config
;
6670 flagword in_fpu_config
;
6672 /* FIXME: What should be checked when linking shared libraries? */
6673 if ((ibfd
->flags
& DYNAMIC
) != 0)
6676 /* TODO: Revise to use object-attributes instead. */
6677 if (!nds32_check_vec_size (ibfd
))
6680 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6681 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6684 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6687 (_("%pB: warning: endian mismatch with previous modules"), ibfd
);
6689 bfd_set_error (bfd_error_bad_value
);
6693 /* -B option in objcopy cannot work as expected. e_flags = 0 shall be
6694 treat as generic one without checking and merging. */
6695 if (elf_elfheader (ibfd
)->e_flags
)
6697 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6698 if (in_version
== E_NDS32_ELF_VER_1_2
)
6701 (_("%pB: warning: older version of object file encountered, "
6702 "please recompile with current tool chain"), ibfd
);
6705 /* We may need to merge V1 and V2 arch object files to V2. */
6706 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6707 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6709 /* Need to convert version. */
6710 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6711 == E_NDS_ARCH_STAR_RESERVED
)
6713 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6715 else if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6716 == E_NDS_ARCH_STAR_V3_M
6717 && (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6718 == E_NDS_ARCH_STAR_V3_0
)
6720 elf_elfheader (ibfd
)->e_flags
=
6721 (elf_elfheader (ibfd
)->e_flags
& (~EF_NDS_ARCH
))
6722 | E_NDS_ARCH_STAR_V3_0
;
6724 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6725 == E_NDS_ARCH_STAR_V0_9
6726 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6727 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6729 elf_elfheader (obfd
)->e_flags
=
6730 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6731 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6735 elf_elfheader (ibfd
)->e_flags
=
6736 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6737 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6741 /* Extract some flags. */
6742 in_flags
= elf_elfheader (ibfd
)->e_flags
6743 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6744 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6746 /* The following flags need special treatment. */
6747 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6748 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6749 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6751 /* Extract some flags. */
6752 out_flags
= elf_elfheader (obfd
)->e_flags
6753 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6754 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6756 /* The following flags need special treatment. */
6757 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6758 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6759 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6760 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6761 if (!elf_flags_init (obfd
))
6763 /* If the input is the default architecture then do not
6764 bother setting the flags for the output architecture,
6765 instead allow future merges to do this. If no future
6766 merges ever set these flags then they will retain their
6767 unitialised values, which surprise surprise, correspond
6768 to the default values. */
6769 if (bfd_get_arch_info (ibfd
)->the_default
)
6772 elf_flags_init (obfd
) = TRUE
;
6773 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6775 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6776 && bfd_get_arch_info (obfd
)->the_default
)
6778 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6779 bfd_get_mach (ibfd
));
6785 /* Check flag compatibility. */
6786 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6789 (_("%pB: error: ABI mismatch with previous modules"), ibfd
);
6790 bfd_set_error (bfd_error_bad_value
);
6794 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6796 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6799 (_("%pB: error: instruction set mismatch with previous modules"),
6802 bfd_set_error (bfd_error_bad_value
);
6807 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6808 and perf ext1 and DIV are mergerd to perf ext1. */
6809 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6811 elf_elfheader (obfd
)->e_flags
=
6812 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6813 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6814 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6815 ? E_NDS32_HAS_EXT_INST
: 0)
6816 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6817 ? E_NDS32_HAS_EXT_INST
: 0)
6818 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6819 | ((in_version
> out_version
) ? out_version
: in_version
);
6823 if (in_version
!= out_version
)
6825 /* xgettext:c-format */
6826 (_("%pB: warning: incompatible elf-versions %s and %s"),
6827 ibfd
, nds32_elfver_strtab
[out_version
],
6828 nds32_elfver_strtab
[in_version
]);
6830 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6831 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6832 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6833 | (in_version
> out_version
? out_version
: in_version
);
6840 /* Display the flags field. */
6843 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6845 FILE *file
= (FILE *) ptr
;
6847 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6849 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6851 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6853 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6857 fprintf (file
, _(": n1 instructions"));
6860 fprintf (file
, _(": n1h instructions"));
6870 nds32_elf_action_discarded (asection
*sec
)
6874 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6877 return _bfd_elf_default_action_discarded (sec
);
6881 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6882 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6883 Elf_Internal_Sym
*sym
)
6886 switch (ELF32_R_TYPE (rel
->r_info
))
6888 case R_NDS32_GNU_VTINHERIT
:
6889 case R_NDS32_GNU_VTENTRY
:
6890 case R_NDS32_RELA_GNU_VTINHERIT
:
6891 case R_NDS32_RELA_GNU_VTENTRY
:
6895 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6898 static enum elf_nds32_tls_type
6899 get_tls_type (enum elf_nds32_reloc_type r_type
,
6900 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
6902 enum elf_nds32_tls_type tls_type
;
6906 case R_NDS32_TLS_LE_HI20
:
6907 case R_NDS32_TLS_LE_LO12
:
6908 tls_type
= GOT_TLS_LE
;
6910 case R_NDS32_TLS_IE_HI20
:
6911 case R_NDS32_TLS_IE_LO12S2
:
6912 case R_NDS32_TLS_IE_LO12
:
6913 tls_type
= GOT_TLS_IE
;
6915 case R_NDS32_TLS_IEGP_HI20
:
6916 case R_NDS32_TLS_IEGP_LO12
:
6917 case R_NDS32_TLS_IEGP_LO12S2
:
6918 tls_type
= GOT_TLS_IEGP
;
6920 case R_NDS32_TLS_DESC_HI20
:
6921 case R_NDS32_TLS_DESC_LO12
:
6922 case R_NDS32_TLS_DESC_ADD
:
6923 case R_NDS32_TLS_DESC_FUNC
:
6924 case R_NDS32_TLS_DESC_CALL
:
6925 tls_type
= GOT_TLS_DESC
;
6928 tls_type
= GOT_NORMAL
;
6935 /* Ensure that we have allocated bookkeeping structures for ABFD's local
6939 elf32_nds32_allocate_local_sym_info (bfd
*abfd
)
6941 if (elf_local_got_refcounts (abfd
) == NULL
)
6943 bfd_size_type num_syms
;
6947 num_syms
= elf_tdata (abfd
)->symtab_hdr
.sh_info
;
6948 /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and
6949 gp_offset. The details can refer to struct elf_nds32_obj_tdata. */
6950 size
= num_syms
* (sizeof (bfd_signed_vma
) + sizeof (char)
6951 + sizeof (bfd_vma
) + sizeof (int)
6952 + sizeof (bfd_boolean
) + sizeof (bfd_vma
));
6953 data
= bfd_zalloc (abfd
, size
);
6957 elf_local_got_refcounts (abfd
) = (bfd_signed_vma
*) data
;
6958 data
+= num_syms
* sizeof (bfd_signed_vma
);
6960 elf32_nds32_local_got_tls_type (abfd
) = (char *) data
;
6961 data
+= num_syms
* sizeof (char);
6963 elf32_nds32_local_tlsdesc_gotent (abfd
) = (bfd_vma
*) data
;
6964 data
+= num_syms
* sizeof (bfd_vma
);
6966 elf32_nds32_local_gp_offset (abfd
) = (int *) data
;
6967 data
+= num_syms
* sizeof (int);
6973 /* Look through the relocs for a section during the first phase.
6974 Since we don't do .gots or .plts, we just need to consider the
6975 virtual table relocs for gc. */
6978 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
6979 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6981 Elf_Internal_Shdr
*symtab_hdr
;
6982 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
6983 const Elf_Internal_Rela
*rel
;
6984 const Elf_Internal_Rela
*rel_end
;
6985 struct elf_link_hash_table
*ehtab
;
6986 struct elf_nds32_link_hash_table
*htab
;
6988 asection
*sreloc
= NULL
;
6990 /* No need for relocation if relocatable already. */
6991 if (bfd_link_relocatable (info
))
6993 elf32_nds32_check_relax_group (abfd
, sec
);
6997 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6998 sym_hashes
= elf_sym_hashes (abfd
);
7000 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
7001 if (!elf_bad_symtab (abfd
))
7002 sym_hashes_end
-= symtab_hdr
->sh_info
;
7004 ehtab
= elf_hash_table (info
);
7005 htab
= nds32_elf_hash_table (info
);
7006 dynobj
= htab
->root
.dynobj
;
7008 rel_end
= relocs
+ sec
->reloc_count
;
7009 for (rel
= relocs
; rel
< rel_end
; rel
++)
7011 enum elf_nds32_reloc_type r_type
;
7012 struct elf_link_hash_entry
*h
;
7013 unsigned long r_symndx
;
7014 enum elf_nds32_tls_type tls_type
, old_tls_type
;
7016 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7017 r_type
= ELF32_R_TYPE (rel
->r_info
);
7018 if (r_symndx
< symtab_hdr
->sh_info
)
7022 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7023 while (h
->root
.type
== bfd_link_hash_indirect
7024 || h
->root
.type
== bfd_link_hash_warning
)
7025 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7028 /* Create .got section if necessary.
7029 Some relocs require a global offset table. We create
7030 got section here, since these relocation need a got section
7031 and if it is not created yet. */
7032 if (ehtab
->sgot
== NULL
)
7036 case R_NDS32_GOT_HI20
:
7037 case R_NDS32_GOT_LO12
:
7038 case R_NDS32_GOT_LO15
:
7039 case R_NDS32_GOT_LO19
:
7040 case R_NDS32_GOT17S2_RELA
:
7041 case R_NDS32_GOT15S2_RELA
:
7042 case R_NDS32_GOTOFF
:
7043 case R_NDS32_GOTOFF_HI20
:
7044 case R_NDS32_GOTOFF_LO12
:
7045 case R_NDS32_GOTOFF_LO15
:
7046 case R_NDS32_GOTOFF_LO19
:
7047 case R_NDS32_GOTPC20
:
7048 case R_NDS32_GOTPC_HI20
:
7049 case R_NDS32_GOTPC_LO12
:
7051 case R_NDS32_TLS_IE_HI20
:
7052 case R_NDS32_TLS_IE_LO12
:
7053 case R_NDS32_TLS_IE_LO12S2
:
7054 case R_NDS32_TLS_IEGP_HI20
:
7055 case R_NDS32_TLS_IEGP_LO12
:
7056 case R_NDS32_TLS_IEGP_LO12S2
:
7057 case R_NDS32_TLS_DESC_HI20
:
7058 case R_NDS32_TLS_DESC_LO12
:
7060 htab
->root
.dynobj
= dynobj
= abfd
;
7061 if (!create_got_section (dynobj
, info
))
7070 /* Check relocation type. */
7071 switch ((int) r_type
)
7073 case R_NDS32_GOT_HI20
:
7074 case R_NDS32_GOT_LO12
:
7075 case R_NDS32_GOT_LO15
:
7076 case R_NDS32_GOT_LO19
:
7078 case R_NDS32_TLS_LE_HI20
:
7079 case R_NDS32_TLS_LE_LO12
:
7080 case R_NDS32_TLS_IE_HI20
:
7081 case R_NDS32_TLS_IE_LO12
:
7082 case R_NDS32_TLS_IE_LO12S2
:
7083 case R_NDS32_TLS_IEGP_HI20
:
7084 case R_NDS32_TLS_IEGP_LO12
:
7085 case R_NDS32_TLS_IEGP_LO12S2
:
7086 case R_NDS32_TLS_DESC_HI20
:
7087 case R_NDS32_TLS_DESC_LO12
:
7088 tls_type
= get_tls_type (r_type
, h
);
7091 if (tls_type
!= GOT_TLS_LE
)
7092 h
->got
.refcount
+= 1;
7093 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
7097 /* This is a global offset table entry for a local symbol. */
7098 if (!elf32_nds32_allocate_local_sym_info (abfd
))
7101 BFD_ASSERT (r_symndx
< symtab_hdr
->sh_info
);
7102 if (tls_type
!= GOT_TLS_LE
)
7103 elf_local_got_refcounts (abfd
)[r_symndx
] += 1;
7104 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
7107 /* We would already have issued an error message if there
7108 is a TLS/non-TLS mismatch, based on the symbol
7109 type. So just combine any TLS types needed. */
7110 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
7111 && tls_type
!= GOT_NORMAL
)
7112 tls_type
|= old_tls_type
;
7114 /* DESC to IE/IEGP if link to executable. */
7115 if ((tls_type
& (GOT_TLS_DESC
| GOT_TLS_IEGP
))
7116 && (bfd_link_executable (info
)))
7117 tls_type
|= (bfd_link_pie (info
) ? GOT_TLS_IEGP
: GOT_TLS_IE
);
7119 if (old_tls_type
!= tls_type
)
7122 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
7124 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
7127 case R_NDS32_9_PLTREL
:
7128 case R_NDS32_25_PLTREL
:
7129 case R_NDS32_PLTREL_HI20
:
7130 case R_NDS32_PLTREL_LO12
:
7131 case R_NDS32_PLT_GOTREL_HI20
:
7132 case R_NDS32_PLT_GOTREL_LO12
:
7133 case R_NDS32_PLT_GOTREL_LO15
:
7134 case R_NDS32_PLT_GOTREL_LO19
:
7135 case R_NDS32_PLT_GOTREL_LO20
:
7137 /* This symbol requires a procedure linkage table entry. We
7138 actually build the entry in adjust_dynamic_symbol,
7139 because this might be a case of linking PIC code without
7140 linking in any dynamic objects, in which case we don't
7141 need to generate a procedure linkage table after all. */
7143 /* If this is a local symbol, we resolve it directly without
7144 creating a procedure linkage table entry. */
7149 || (bfd_link_pie (info
) && h
->def_regular
))
7152 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
7154 h
->plt
.refcount
+= 1;
7157 case R_NDS32_16_RELA
:
7158 case R_NDS32_20_RELA
:
7159 case R_NDS32_5_RELA
:
7160 case R_NDS32_32_RELA
:
7161 case R_NDS32_HI20_RELA
:
7162 case R_NDS32_LO12S3_RELA
:
7163 case R_NDS32_LO12S2_RELA
:
7164 case R_NDS32_LO12S2_DP_RELA
:
7165 case R_NDS32_LO12S2_SP_RELA
:
7166 case R_NDS32_LO12S1_RELA
:
7167 case R_NDS32_LO12S0_RELA
:
7168 case R_NDS32_LO12S0_ORI_RELA
:
7169 case R_NDS32_SDA16S3_RELA
:
7170 case R_NDS32_SDA17S2_RELA
:
7171 case R_NDS32_SDA18S1_RELA
:
7172 case R_NDS32_SDA19S0_RELA
:
7173 case R_NDS32_SDA15S3_RELA
:
7174 case R_NDS32_SDA15S2_RELA
:
7175 case R_NDS32_SDA12S2_DP_RELA
:
7176 case R_NDS32_SDA12S2_SP_RELA
:
7177 case R_NDS32_SDA15S1_RELA
:
7178 case R_NDS32_SDA15S0_RELA
:
7179 case R_NDS32_SDA_FP7U2_RELA
:
7180 case R_NDS32_15_PCREL_RELA
:
7181 case R_NDS32_17_PCREL_RELA
:
7182 case R_NDS32_25_PCREL_RELA
:
7184 if (h
!= NULL
&& !bfd_link_pic (info
))
7187 h
->plt
.refcount
+= 1;
7190 /* If we are creating a shared library, and this is a reloc against
7191 a global symbol, or a non PC relative reloc against a local
7192 symbol, then we need to copy the reloc into the shared library.
7193 However, if we are linking with -Bsymbolic, we do not need to
7194 copy a reloc against a global symbol which is defined in an
7195 object we are including in the link (i.e., DEF_REGULAR is set).
7196 At this point we have not seen all the input files, so it is
7197 possible that DEF_REGULAR is not set now but will be set later
7198 (it is never cleared). We account for that possibility below by
7199 storing information in the dyn_relocs field of the hash table
7200 entry. A similar situation occurs when creating shared libraries
7201 and symbol visibility changes render the symbol local.
7203 If on the other hand, we are creating an executable, we may need
7204 to keep relocations for symbols satisfied by a dynamic library
7205 if we manage to avoid copy relocs for the symbol. */
7206 if ((bfd_link_pic (info
)
7207 && (sec
->flags
& SEC_ALLOC
) != 0
7208 && ((r_type
!= R_NDS32_25_PCREL_RELA
7209 && r_type
!= R_NDS32_15_PCREL_RELA
7210 && r_type
!= R_NDS32_17_PCREL_RELA
7211 && !(r_type
== R_NDS32_32_RELA
7212 && strcmp (sec
->name
, ".eh_frame") == 0))
7215 || h
->root
.type
== bfd_link_hash_defweak
7216 || !h
->def_regular
))))
7217 || (!bfd_link_pic (info
)
7218 && (sec
->flags
& SEC_ALLOC
) != 0
7220 && (h
->root
.type
== bfd_link_hash_defweak
7221 || !h
->def_regular
)))
7223 struct elf_dyn_relocs
*p
;
7224 struct elf_dyn_relocs
**head
;
7227 htab
->root
.dynobj
= dynobj
= abfd
;
7229 /* When creating a shared object, we must copy these
7230 relocs into the output file. We create a reloc
7231 section in dynobj and make room for the reloc. */
7236 name
= bfd_elf_string_from_elf_section
7237 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
7238 elf_section_data (sec
)->rela
.hdr
->sh_name
);
7242 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
7243 && strcmp (bfd_section_name (sec
),
7246 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7251 sreloc
= bfd_make_section (dynobj
, name
);
7252 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
7253 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
7254 if ((sec
->flags
& SEC_ALLOC
) != 0)
7255 flags
|= SEC_ALLOC
| SEC_LOAD
;
7257 || !bfd_set_section_flags (sreloc
, flags
)
7258 || !bfd_set_section_alignment (sreloc
, 2))
7261 elf_section_type (sreloc
) = SHT_RELA
;
7263 elf_section_data (sec
)->sreloc
= sreloc
;
7266 /* If this is a global symbol, we count the number of
7267 relocations we need for this symbol. */
7269 head
= &h
->dyn_relocs
;
7275 Elf_Internal_Sym
*isym
;
7276 isym
= bfd_sym_from_r_symndx (&htab
->root
.sym_cache
,
7281 /* Track dynamic relocs needed for local syms too. */
7282 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7286 vpp
= &elf_section_data (s
)->local_dynrel
;
7287 head
= (struct elf_dyn_relocs
**) vpp
;
7291 if (p
== NULL
|| p
->sec
!= sec
)
7293 size_t amt
= sizeof (*p
);
7294 p
= (struct elf_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
7306 /* Since eh_frame is readonly, R_NDS32_32_RELA
7307 reloc for eh_frame will cause shared library has
7308 TEXTREL entry in the dynamic section. This lead glibc
7309 testsuites to failure (bug-13092) and cause kernel fail
7310 (bug-11819). I think the best solution is to replace
7311 absolute reloc with pc relative reloc in the eh_frame.
7312 To do that, we need to support the following issues:
7315 * gcc/config/nds32/nds32.h: Define
7316 ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel
7317 and DW_EH_PE_sdata4 into DWARF exception header when
7318 option have '-fpic'.
7320 === For binutils ===
7321 * bfd/: Define new reloc R_NDS32_32_PCREL_RELA.
7322 * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This
7323 may break our nds DIFF mechanism, therefore, we
7324 must disable all linker relaxations to ensure
7326 * gas/config/tc-nds32.c (nds32_apply_fix): Replace
7327 R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and
7328 do the necessary modification.
7330 Unfortunately, it still have some problems for nds32
7331 to support pc relative reloc in the eh_frame. So I use
7332 another solution to fix this issue.
7334 However, I find that ld always emit TEXTREL marker for
7335 R_NDS32_NONE relocs in rel.dyn. These none relocs are
7336 correspond to R_NDS32_32_RELA for .eh_frame section.
7337 It means that we always reserve redundant entries of rel.dyn
7338 for these relocs which actually do nothing in dynamic linker.
7340 Therefore, we regard these relocs as pc relative relocs
7341 here and increase the pc_count. */
7342 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
7343 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
7344 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
7345 || (r_type
== R_NDS32_32_RELA
7346 && strcmp (sec
->name
, ".eh_frame") == 0))
7351 /* This relocation describes the C++ object vtable hierarchy.
7352 Reconstruct it for later use during GC. */
7353 case R_NDS32_RELA_GNU_VTINHERIT
:
7354 case R_NDS32_GNU_VTINHERIT
:
7355 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7359 /* This relocation describes which C++ vtable entries are actually
7360 used. Record for later use during GC. */
7361 case R_NDS32_GNU_VTENTRY
:
7362 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7365 case R_NDS32_RELA_GNU_VTENTRY
:
7366 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
7375 /* Write VAL in uleb128 format to P, returning a pointer to the
7377 This code is copied from elf-attr.c. */
7380 write_uleb128 (bfd_byte
*p
, unsigned int val
)
7395 static bfd_signed_vma
7396 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
7397 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
7399 bfd_signed_vma foff
;
7400 bfd_vma symval
, addend
;
7403 /* Get the value of the symbol referred to by the reloc. */
7404 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
7406 Elf_Internal_Sym
*isym
;
7408 /* A local symbol. */
7409 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
7411 if (isym
->st_shndx
== SHN_UNDEF
)
7412 sym_sec
= bfd_und_section_ptr
;
7413 else if (isym
->st_shndx
== SHN_ABS
)
7414 sym_sec
= bfd_abs_section_ptr
;
7415 else if (isym
->st_shndx
== SHN_COMMON
)
7416 sym_sec
= bfd_com_section_ptr
;
7418 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7419 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
7420 + sym_sec
->output_offset
;
7425 struct elf_link_hash_entry
*h
;
7427 /* An external symbol. */
7428 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
7429 h
= elf_sym_hashes (abfd
)[indx
];
7430 BFD_ASSERT (h
!= NULL
);
7432 if (h
->root
.type
!= bfd_link_hash_defined
7433 && h
->root
.type
!= bfd_link_hash_defweak
)
7434 /* This appears to be a reference to an undefined
7435 symbol. Just ignore it--it will be caught by the
7436 regular reloc processing. */
7439 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
7441 sym_sec
= h
->root
.u
.def
.section
;
7442 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
7443 elf_section_data (sym_sec
)->sec_info
,
7444 h
->root
.u
.def
.value
);
7445 symval
= symval
+ sym_sec
->output_section
->vma
7446 + sym_sec
->output_offset
;
7449 symval
= (h
->root
.u
.def
.value
7450 + h
->root
.u
.def
.section
->output_section
->vma
7451 + h
->root
.u
.def
.section
->output_offset
);
7454 addend
= irel
->r_addend
;
7456 foff
= (symval
+ addend
7457 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
7462 /* Convert a 32-bit instruction to 16-bit one.
7463 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
7464 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
7465 type of INSN16. Return 1 if successful. */
7468 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7471 uint16_t insn16
= 0;
7473 unsigned long mach
= bfd_get_mach (abfd
);
7475 if (N32_SH5 (insn
) != 0)
7478 switch (N32_SUB5 (insn
))
7480 case N32_ALU1_ADD_SLLI
:
7481 case N32_ALU1_ADD_SRLI
:
7482 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7484 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
7486 insn_type
= NDS32_INSN_ADD333
;
7488 else if (N32_IS_RT4 (insn
))
7490 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7491 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
7492 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7493 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
7494 insn_type
= NDS32_INSN_ADD45
;
7498 case N32_ALU1_SUB_SLLI
:
7499 case N32_ALU1_SUB_SRLI
:
7500 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7502 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
7504 insn_type
= NDS32_INSN_SUB333
;
7506 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7508 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
7509 insn_type
= NDS32_INSN_SUB45
;
7513 case N32_ALU1_AND_SLLI
:
7514 case N32_ALU1_AND_SRLI
:
7515 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
7516 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7517 && N32_IS_RB3 (insn
))
7519 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7520 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
7521 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7522 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
7524 insn_type
= NDS32_INSN_AND33
;
7528 case N32_ALU1_XOR_SLLI
:
7529 case N32_ALU1_XOR_SRLI
:
7530 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
7531 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7532 && N32_IS_RB3 (insn
))
7534 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7535 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7536 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7537 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7539 insn_type
= NDS32_INSN_XOR33
;
7543 case N32_ALU1_OR_SLLI
:
7544 case N32_ALU1_OR_SRLI
:
7545 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
7546 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7547 && N32_IS_RB3 (insn
))
7549 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7550 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7551 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7552 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7554 insn_type
= NDS32_INSN_OR33
;
7558 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
7559 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
7560 && N32_RA5 (insn
) == N32_RB5 (insn
))
7562 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
7563 insn_type
= NDS32_INSN_NOT33
;
7567 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7569 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7570 insn_type
= NDS32_INSN_SRAI45
;
7575 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7577 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7578 insn_type
= NDS32_INSN_SRLI45
;
7583 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
7585 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7587 insn_type
= NDS32_INSN_SLLI333
;
7592 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7594 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7595 insn_type
= NDS32_INSN_ZEH33
;
7600 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7602 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7603 insn_type
= NDS32_INSN_SEB33
;
7608 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7610 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7611 insn_type
= NDS32_INSN_SEH33
;
7616 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7619 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7620 insn_type
= NDS32_INSN_SLT45
;
7625 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7628 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7629 insn_type
= NDS32_INSN_SLTS45
;
7634 if ((insn16
& 0x8000) == 0)
7640 *pinsn_type
= insn_type
;
7645 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7648 uint16_t insn16
= 0;
7650 unsigned long mach
= bfd_get_mach (abfd
);
7652 /* TODO: bset, bclr, btgl, btst. */
7653 if (__GF (insn
, 6, 4) != 0)
7656 switch (N32_IMMU (insn
, 6))
7659 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7660 && N32_IS_RB3 (insn
))
7662 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7663 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7664 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7665 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7667 insn_type
= NDS32_INSN_MUL33
;
7671 if ((insn16
& 0x8000) == 0)
7677 *pinsn_type
= insn_type
;
7682 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7686 uint16_t insn16
= 0;
7688 unsigned long mach
= bfd_get_mach (abfd
);
7690 /* Decode 32-bit instruction. */
7691 if (insn
& 0x80000000)
7693 /* Not 32-bit insn. */
7697 op6
= N32_OP6 (insn
);
7699 /* Convert it to 16-bit instruction. */
7703 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7705 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7706 insn_type
= NDS32_INSN_MOVI55
;
7708 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7709 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7711 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7712 N32_IMM20S (insn
) - 16);
7713 insn_type
= NDS32_INSN_MOVPI45
;
7718 if (N32_IMM15S (insn
) == 0)
7720 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7721 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7723 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7725 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7726 insn_type
= NDS32_INSN_MOV55
;
7729 else if (N32_IMM15S (insn
) > 0)
7731 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7733 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7735 insn_type
= NDS32_INSN_ADDI333
;
7737 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7738 && N32_IMM15S (insn
) < 32)
7740 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7741 insn_type
= NDS32_INSN_ADDI45
;
7743 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7744 && N32_RT5 (insn
) == N32_RA5 (insn
)
7745 && N32_IMM15S (insn
) < 512)
7747 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7748 insn_type
= NDS32_INSN_ADDI10_SP
;
7750 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7751 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7752 && (N32_IMM15S (insn
) % 4 == 0))
7754 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7755 N32_IMM15S (insn
) >> 2);
7756 insn_type
= NDS32_INSN_ADDRI36_SP
;
7762 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7764 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7765 0 - N32_IMM15S (insn
));
7766 insn_type
= NDS32_INSN_SUBI333
;
7768 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7769 && N32_IMM15S (insn
) > -32)
7771 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7772 0 - N32_IMM15S (insn
));
7773 insn_type
= NDS32_INSN_SUBI45
;
7775 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7776 && N32_RT5 (insn
) == N32_RA5 (insn
)
7777 && N32_IMM15S (insn
) >= -512)
7779 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7780 insn_type
= NDS32_INSN_ADDI10_SP
;
7786 if (N32_IMM15S (insn
) == 0)
7788 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7789 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7791 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7793 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7794 insn_type
= NDS32_INSN_MOV55
;
7800 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7801 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7803 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7804 insn_type
= NDS32_INSN_NEG33
;
7809 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7811 if (N32_IMM15U (insn
) == 1)
7813 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7814 insn_type
= NDS32_INSN_XLSB33
;
7816 else if (N32_IMM15U (insn
) == 0x7ff)
7818 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7819 insn_type
= NDS32_INSN_X11B33
;
7821 else if (N32_IMM15U (insn
) == 0xff)
7823 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7824 insn_type
= NDS32_INSN_ZEB33
;
7826 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7827 && N32_IMM15U (insn
) < 256)
7829 int imm15u
= N32_IMM15U (insn
);
7831 if (__builtin_popcount (imm15u
) == 1)
7834 int imm3u
= __builtin_ctz (imm15u
);
7836 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7837 insn_type
= NDS32_INSN_BMSKI33
;
7839 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7842 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7844 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7845 insn_type
= NDS32_INSN_FEXTI33
;
7852 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7853 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7855 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7856 insn_type
= NDS32_INSN_SLTI45
;
7861 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7862 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7864 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7865 insn_type
= NDS32_INSN_SLTSI45
;
7870 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7872 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7873 insn_type
= NDS32_INSN_LWI450
;
7875 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7876 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7878 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7880 insn_type
= NDS32_INSN_LWI333
;
7882 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7883 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7885 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7886 insn_type
= NDS32_INSN_LWI37
;
7888 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7889 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7891 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7892 insn_type
= NDS32_INSN_LWI37_SP
;
7894 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7895 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7897 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7898 N32_IMM15S (insn
) + 32);
7899 insn_type
= NDS32_INSN_LWI45_FE
;
7904 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7906 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7907 insn_type
= NDS32_INSN_SWI450
;
7909 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7910 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7912 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7914 insn_type
= NDS32_INSN_SWI333
;
7916 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7917 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7919 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7920 insn_type
= NDS32_INSN_SWI37
;
7922 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7923 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7925 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7926 insn_type
= NDS32_INSN_SWI37_SP
;
7930 case N32_OP6_LWI_BI
:
7931 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7932 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7934 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7936 insn_type
= NDS32_INSN_LWI333_BI
;
7940 case N32_OP6_SWI_BI
:
7941 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7942 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7944 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7946 insn_type
= NDS32_INSN_SWI333_BI
;
7951 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7952 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7954 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7956 insn_type
= NDS32_INSN_LHI333
;
7961 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7962 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7964 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7966 insn_type
= NDS32_INSN_SHI333
;
7971 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7972 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7974 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7976 insn_type
= NDS32_INSN_LBI333
;
7981 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7982 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7984 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7986 insn_type
= NDS32_INSN_SBI333
;
7991 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
7994 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
7997 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
8000 if ((insn
& N32_BIT (14)) == 0)
8003 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8004 && N32_RT5 (insn
) != REG_R5
)
8005 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8006 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8007 && N32_RA5 (insn
) != REG_R5
)
8008 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8009 insn_type
= NDS32_INSN_BEQS38
;
8015 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8016 && N32_RT5 (insn
) != REG_R5
)
8017 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8018 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8019 && N32_RA5 (insn
) != REG_R5
)
8020 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8021 insn_type
= NDS32_INSN_BNES38
;
8027 switch (N32_BR2_SUB (insn
))
8030 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8032 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8033 insn_type
= NDS32_INSN_BEQZ38
;
8035 else if (N32_RT5 (insn
) == REG_R15
8036 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8038 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
8039 insn_type
= NDS32_INSN_BEQZS8
;
8044 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8046 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8047 insn_type
= NDS32_INSN_BNEZ38
;
8049 else if (N32_RT5 (insn
) == REG_R15
8050 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8052 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
8053 insn_type
= NDS32_INSN_BNEZS8
;
8058 if (__GF (insn
, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn
), 9))
8060 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
8061 insn_type
= NDS32_INSN_IFCALL9
;
8068 if ((insn
& N32_BIT (24)) == 0)
8071 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
8073 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
8074 insn_type
= NDS32_INSN_J8
;
8080 if (__GF (insn
, 8, 2) != 0)
8083 switch (N32_IMMU (insn
, 5))
8086 if (N32_JREG_HINT (insn
) == 0)
8089 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
8090 insn_type
= NDS32_INSN_JR5
;
8092 else if (N32_JREG_HINT (insn
) == 1)
8095 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
8096 insn_type
= NDS32_INSN_RET5
;
8098 else if (N32_JREG_HINT (insn
) == 3)
8100 /* ifret = mov55 $sp, $sp */
8101 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
8102 insn_type
= NDS32_INSN_IFRET
;
8107 /* It's convertible when return rt5 is $lp and address
8108 translation is kept. */
8109 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
8111 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
8112 insn_type
= NDS32_INSN_JRAL5
;
8119 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
8121 /* For v3, swid above 31 are used for ex9.it. */
8122 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
8123 insn_type
= NDS32_INSN_BREAK16
;
8128 /* This instruction has no 16-bit variant. */
8133 /* Bit-15 of insn16 should be set for a valid instruction. */
8134 if ((insn16
& 0x8000) == 0)
8140 *pinsn_type
= insn_type
;
8145 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
8146 Elf_Internal_Rela
*reloc
)
8148 uint16_t insn16
= 0;
8150 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
8151 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
8154 if (!N32_IS_RT3 (insn
))
8157 switch (N32_OP6 (insn
))
8160 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8161 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8164 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8165 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8168 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
8171 if (__GF (insn
, 17, 3) == 6)
8172 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
8173 else if (__GF (insn
, 17, 3) == 7)
8174 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
8178 if ((insn16
& 0x8000) == 0)
8185 /* Convert a 16-bit instruction to 32-bit one.
8186 INSN16 it the input and PINSN it the point to output.
8187 Return non-zero on successful. Otherwise 0 is returned. */
8190 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
8192 uint32_t insn
= 0xffffffff;
8193 unsigned long mach
= bfd_get_mach (abfd
);
8195 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
8197 switch (__GF (insn16
, 9, 6))
8199 case 0x4: /* add45 */
8200 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8203 case 0x5: /* sub45 */
8204 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8207 case 0x6: /* addi45 */
8208 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8209 N16_IMM5U (insn16
));
8211 case 0x7: /* subi45 */
8212 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8213 -N16_IMM5U (insn16
));
8215 case 0x8: /* srai45 */
8216 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8217 N16_IMM5U (insn16
));
8219 case 0x9: /* srli45 */
8220 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8221 N16_IMM5U (insn16
));
8223 case 0xa: /* slli333 */
8224 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8225 N16_IMM3U (insn16
));
8227 case 0xc: /* add333 */
8228 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8231 case 0xd: /* sub333 */
8232 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8235 case 0xe: /* addi333 */
8236 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8237 N16_IMM3U (insn16
));
8239 case 0xf: /* subi333 */
8240 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8241 -N16_IMM3U (insn16
));
8243 case 0x10: /* lwi333 */
8244 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8245 N16_IMM3U (insn16
));
8247 case 0x12: /* lhi333 */
8248 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8249 N16_IMM3U (insn16
));
8251 case 0x13: /* lbi333 */
8252 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8253 N16_IMM3U (insn16
));
8255 case 0x11: /* lwi333.bi */
8256 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8257 N16_IMM3U (insn16
));
8259 case 0x14: /* swi333 */
8260 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8261 N16_IMM3U (insn16
));
8263 case 0x16: /* shi333 */
8264 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8265 N16_IMM3U (insn16
));
8267 case 0x17: /* sbi333 */
8268 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8269 N16_IMM3U (insn16
));
8271 case 0x15: /* swi333.bi */
8272 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8273 N16_IMM3U (insn16
));
8275 case 0x18: /* addri36.sp */
8276 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
8277 N16_IMM6U (insn16
) << 2);
8279 case 0x19: /* lwi45.fe */
8280 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
8281 (N16_IMM5U (insn16
) - 32));
8283 case 0x1a: /* lwi450 */
8284 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8286 case 0x1b: /* swi450 */
8287 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8290 /* These are r15 implied instructions. */
8291 case 0x30: /* slts45 */
8292 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8294 case 0x31: /* slt45 */
8295 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8297 case 0x32: /* sltsi45 */
8298 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8300 case 0x33: /* slti45 */
8301 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8303 case 0x34: /* beqzs8, bnezs8 */
8304 if (insn16
& N32_BIT (8))
8305 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
8307 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
8310 case 0x35: /* break16, ex9.it */
8311 /* Only consider range of v3 break16. */
8312 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
8315 case 0x3c: /* ifcall9 */
8316 insn
= N32_BR2 (SOP0
, 0, N16_IMM9U (insn16
));
8318 case 0x3d: /* movpi45 */
8319 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
8322 case 0x3f: /* MISC33 */
8323 switch (insn16
& 0x7)
8326 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8329 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8333 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8337 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8341 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8345 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8352 switch (insn16
& 0x7)
8355 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
8358 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8361 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8364 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8366 case 4: /* xlsb33 */
8367 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
8369 case 5: /* x11b33 */
8370 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
8372 case 6: /* bmski33 */
8373 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8374 1 << __GF (insn16
, 3, 3));
8376 case 7: /* fexti33 */
8377 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8378 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
8384 switch (__GF (insn16
, 10, 5))
8386 case 0x0: /* mov55 or ifret16 */
8387 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
8388 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
8389 insn
= N32_JREG (JR
, 0, 0, 0, 3);
8391 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
8393 case 0x1: /* movi55 */
8394 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
8396 case 0x1b: /* addi10s (V2) */
8397 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
8401 switch (__GF (insn16
, 11, 4))
8403 case 0x7: /* lwi37.fp/swi37.fp */
8404 if (insn16
& N32_BIT (7)) /* swi37.fp */
8405 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8407 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8409 case 0x8: /* beqz38 */
8410 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8412 case 0x9: /* bnez38 */
8413 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8415 case 0xa: /* beqs38/j8, implied r5 */
8416 if (N16_RT38 (insn16
) == 5)
8417 insn
= N32_JI (J
, N16_IMM8S (insn16
));
8419 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8421 case 0xb: /* bnes38 and others. */
8422 if (N16_RT38 (insn16
) == 5)
8424 switch (__GF (insn16
, 5, 3))
8427 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
8430 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
8433 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
8435 case 2: /* ex9.it imm5 */
8436 /* ex9.it had no 32-bit variantl. */
8438 case 5: /* add5.pc */
8439 /* add5.pc had no 32-bit variantl. */
8444 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8446 case 0xe: /* lwi37/swi37 */
8447 if (insn16
& (1 << 7)) /* swi37.sp */
8448 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8450 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8455 if (insn
& 0x80000000)
8465 is_sda_access_insn (unsigned long insn
)
8467 switch (N32_OP6 (insn
))
8488 static unsigned long
8489 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
8495 case R_NDS32_GOT_LO12
:
8496 case R_NDS32_GOTOFF_LO12
:
8497 case R_NDS32_PLTREL_LO12
:
8498 case R_NDS32_PLT_GOTREL_LO12
:
8499 case R_NDS32_LO12S0_RELA
:
8500 switch (N32_OP6 (insn
))
8504 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
8508 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), N32_BIT (19));
8512 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
8516 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), N32_BIT (19));
8521 case R_NDS32_LO12S1_RELA
:
8522 switch (N32_OP6 (insn
))
8526 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
8530 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (18));
8534 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (19));
8539 case R_NDS32_LO12S2_RELA
:
8540 switch (N32_OP6 (insn
))
8544 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
8548 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
8553 case R_NDS32_LO12S2_DP_RELA
:
8554 case R_NDS32_LO12S2_SP_RELA
:
8555 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
8565 /* Linker hasn't found the correct merge section for non-section symbol
8566 in relax time, this work is left to the function elf_link_input_bfd().
8567 So for non-section symbol, _bfd_merged_section_offset is also needed
8568 to find the correct symbol address. */
8571 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
8572 asection
**psec
, Elf_Internal_Rela
*rel
)
8574 asection
*sec
= *psec
;
8577 relocation
= (sec
->output_section
->vma
8578 + sec
->output_offset
+ sym
->st_value
);
8579 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
8581 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
8583 _bfd_merged_section_offset (abfd
, psec
,
8584 elf_section_data (sec
)->sec_info
,
8585 sym
->st_value
+ rel
->r_addend
);
8588 _bfd_merged_section_offset (abfd
, psec
,
8589 elf_section_data (sec
)->sec_info
,
8590 sym
->st_value
) + rel
->r_addend
;
8594 /* If we have changed the section, and our original section is
8595 marked with SEC_EXCLUDE, it means that the original
8596 SEC_MERGE section has been completely subsumed in some
8597 other SEC_MERGE section. In this case, we need to leave
8598 some info around for --emit-relocs. */
8599 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
8600 sec
->kept_section
= *psec
;
8603 rel
->r_addend
-= relocation
;
8604 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8610 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8611 Elf_Internal_Sym
*isymbuf
,
8612 Elf_Internal_Shdr
*symtab_hdr
)
8614 bfd_signed_vma foff
;
8615 bfd_vma symval
, addend
;
8616 Elf_Internal_Rela irel_fn
;
8617 Elf_Internal_Sym
*isym
;
8620 /* Get the value of the symbol referred to by the reloc. */
8621 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8623 /* A local symbol. */
8624 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8626 if (isym
->st_shndx
== SHN_UNDEF
)
8627 sym_sec
= bfd_und_section_ptr
;
8628 else if (isym
->st_shndx
== SHN_ABS
)
8629 sym_sec
= bfd_abs_section_ptr
;
8630 else if (isym
->st_shndx
== SHN_COMMON
)
8631 sym_sec
= bfd_com_section_ptr
;
8633 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8634 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8635 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8636 addend
= irel_fn
.r_addend
;
8641 struct elf_link_hash_entry
*h
;
8643 /* An external symbol. */
8644 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8645 h
= elf_sym_hashes (abfd
)[indx
];
8646 BFD_ASSERT (h
!= NULL
);
8648 while (h
->root
.type
== bfd_link_hash_indirect
8649 || h
->root
.type
== bfd_link_hash_warning
)
8650 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8652 if (h
->root
.type
!= bfd_link_hash_defined
8653 && h
->root
.type
!= bfd_link_hash_defweak
)
8654 /* This appears to be a reference to an undefined
8655 symbol. Just ignore it--it will be caught by the
8656 regular reloc processing. */
8659 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8661 sym_sec
= h
->root
.u
.def
.section
;
8662 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8663 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8664 symval
= symval
+ sym_sec
->output_section
->vma
8665 + sym_sec
->output_offset
;
8668 symval
= (h
->root
.u
.def
.value
8669 + h
->root
.u
.def
.section
->output_section
->vma
8670 + h
->root
.u
.def
.section
->output_offset
);
8671 addend
= irel
->r_addend
;
8674 foff
= symval
+ addend
;
8680 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8681 asection
*sec
, Elf_Internal_Rela
*rel
)
8684 unsigned short insn16
;
8686 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8688 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8689 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8690 if (insn16
== NDS32_NOP16
)
8695 /* It checks whether the instruction could be converted to
8696 16-bit form and returns the converted one.
8698 `internal_relocs' is supposed to be sorted. */
8701 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8702 Elf_Internal_Rela
*reloc
,
8703 Elf_Internal_Rela
*internal_relocs
,
8704 Elf_Internal_Rela
*irelend
,
8707 #define NORMAL_32_TO_16 (1 << 0)
8708 #define SPECIAL_32_TO_16 (1 << 1)
8709 bfd_byte
*contents
= NULL
;
8713 Elf_Internal_Rela
*pc_rel
;
8714 Elf_Internal_Shdr
*symtab_hdr
;
8715 Elf_Internal_Sym
*isymbuf
= NULL
;
8719 if (reloc
->r_offset
+ 4 > sec
->size
)
8722 offset
= reloc
->r_offset
;
8724 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8726 insn
= bfd_getb32 (contents
+ offset
);
8728 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8729 convert_type
= NORMAL_32_TO_16
;
8730 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8731 convert_type
= SPECIAL_32_TO_16
;
8735 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8736 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8739 /* Find the first relocation of the same relocation-type,
8740 so we iteratie them forward. */
8742 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8745 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8747 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8748 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8749 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8750 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8752 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8753 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8758 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8760 /* movi => movi55 */
8761 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8763 /* mem_addr is unsigned, but the value should
8764 be between [-16, 15]. */
8765 if ((mem_addr
+ 0x10) >> 5)
8769 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8770 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8772 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8773 because it can be relaxed to addi for TLS_LE_ADD. */
8776 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8777 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8778 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8779 && convert_type
== SPECIAL_32_TO_16
)
8782 We've selected a best fp-base for this access, so we can
8783 always resolve it anyway. Do nothing. */
8786 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8787 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8788 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8789 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8790 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8791 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8793 /* Prevent unresolved addi instruction translate
8794 to addi45 or addi333. */
8797 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8799 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8800 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8810 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8811 Elf_Internal_Rela
*reloc
,
8812 Elf_Internal_Rela
*internal_relocs
,
8813 Elf_Internal_Rela
*irelend
,
8814 unsigned short insn16
)
8816 Elf_Internal_Rela
*pc_rel
;
8819 offset
= reloc
->r_offset
;
8820 bfd_putb16 (insn16
, contents
+ offset
);
8821 /* Find the first relocation of the same relocation-type,
8822 so we iteratie them forward. */
8824 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8827 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8829 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8830 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8831 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8834 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8836 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8838 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8839 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8841 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8842 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8843 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8845 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8846 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8848 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8852 /* Find a relocation of type specified by `reloc_type'
8853 of the same r_offset with reloc.
8854 If not found, return irelend.
8856 Assuming relocations are sorted by r_offset,
8857 we find the relocation from `reloc' backward untill relocs,
8858 or find it from `reloc' forward untill irelend. */
8860 static Elf_Internal_Rela
*
8861 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8862 Elf_Internal_Rela
*relocs
,
8863 Elf_Internal_Rela
*irelend
,
8864 enum elf_nds32_reloc_type reloc_type
)
8866 Elf_Internal_Rela
*rel_t
;
8868 /* Find backward. */
8870 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8872 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8875 /* We didn't find it backward. Try find it forward. */
8877 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8879 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8885 /* Find a relocation of specified type and offset.
8886 `reloc' is just a refence point to find a relocation at specified offset.
8887 If not found, return irelend.
8889 Assuming relocations are sorted by r_offset,
8890 we find the relocation from `reloc' backward untill relocs,
8891 or find it from `reloc' forward untill irelend. */
8893 static Elf_Internal_Rela
*
8894 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8895 Elf_Internal_Rela
*relocs
,
8896 Elf_Internal_Rela
*irelend
,
8897 enum elf_nds32_reloc_type reloc_type
,
8900 Elf_Internal_Rela
*rel_t
= NULL
;
8902 /* First, we try to find a relocation of offset `offset_p',
8903 and then we use find_relocs_at_address to find specific type. */
8905 if (reloc
->r_offset
> offset_p
)
8907 /* Find backward. */
8909 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8912 else if (reloc
->r_offset
< offset_p
)
8916 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8923 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8926 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8929 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8930 struct nds32_elf_blank
8932 /* Where the blank begins. */
8934 /* The size of the blank. */
8936 /* The accumulative size before this blank. */
8938 nds32_elf_blank_t
*next
;
8939 nds32_elf_blank_t
*prev
;
8942 static nds32_elf_blank_t
*blank_free_list
= NULL
;
8944 static nds32_elf_blank_t
*
8945 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
8947 nds32_elf_blank_t
*blank_t
;
8949 if (blank_free_list
)
8951 blank_t
= blank_free_list
;
8952 blank_free_list
= blank_free_list
->next
;
8955 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
8957 if (blank_t
== NULL
)
8960 blank_t
->offset
= offset_p
;
8961 blank_t
->size
= size_p
;
8962 blank_t
->total_size
= 0;
8963 blank_t
->next
= NULL
;
8964 blank_t
->prev
= NULL
;
8970 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
8972 if (blank_free_list
)
8974 blank_free_list
->prev
= blank_p
;
8975 blank_p
->next
= blank_free_list
;
8978 blank_p
->next
= NULL
;
8980 blank_p
->prev
= NULL
;
8981 blank_free_list
= blank_p
;
8985 clean_nds32_elf_blank (void)
8987 nds32_elf_blank_t
*blank_t
;
8989 while (blank_free_list
)
8991 blank_t
= blank_free_list
;
8992 blank_free_list
= blank_free_list
->next
;
8997 static nds32_elf_blank_t
*
8998 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
9000 nds32_elf_blank_t
*blank_t
;
9006 while (blank_t
&& addr
< blank_t
->offset
)
9007 blank_t
= blank_t
->prev
;
9008 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
9009 blank_t
= blank_t
->next
;
9015 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9018 nds32_elf_blank_t
*blank_t
;
9020 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9027 if (addr
< blank_t
->offset
+ blank_t
->size
)
9028 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
9030 return blank_t
->total_size
+ blank_t
->size
;
9034 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
9036 nds32_elf_blank_t
*blank_t
, *blank_t2
;
9040 *blank_p
= create_nds32_elf_blank (addr
, len
);
9041 return *blank_p
!= NULL
;
9044 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9046 if (blank_t
== NULL
)
9048 blank_t
= create_nds32_elf_blank (addr
, len
);
9051 while ((*blank_p
)->prev
!= NULL
)
9052 *blank_p
= (*blank_p
)->prev
;
9053 blank_t
->next
= *blank_p
;
9054 (*blank_p
)->prev
= blank_t
;
9055 (*blank_p
) = blank_t
;
9059 if (addr
< blank_t
->offset
+ blank_t
->size
)
9061 /* Extend the origin blank. */
9062 if (addr
+ len
> blank_t
->offset
+ blank_t
->size
)
9063 blank_t
->size
= addr
+ len
- blank_t
->offset
;
9067 blank_t2
= create_nds32_elf_blank (addr
, len
);
9072 blank_t
->next
->prev
= blank_t2
;
9073 blank_t2
->next
= blank_t
->next
;
9075 blank_t2
->prev
= blank_t
;
9076 blank_t
->next
= blank_t2
;
9077 *blank_p
= blank_t2
;
9084 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9087 nds32_elf_blank_t
*blank_t
;
9089 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
9096 blank_t
->total_size
= 0;
9097 blank_t
= blank_t
->next
;
9102 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
9103 blank_t
= blank_t
->next
;
9110 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
9112 nds32_elf_blank_t
*blank_t
;
9113 bfd_vma total_size
= 0;
9119 while (blank_t
->prev
)
9120 blank_t
= blank_t
->prev
;
9123 blank_t
->total_size
= total_size
;
9124 total_size
+= blank_t
->size
;
9125 blank_t
= blank_t
->next
;
9130 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
9131 nds32_elf_blank_t
*blank_p
)
9133 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
9134 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
9135 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
9136 unsigned int sec_shndx
; /* The section the be relaxed. */
9137 bfd_byte
*contents
; /* Contents data of iterating section. */
9138 Elf_Internal_Rela
*internal_relocs
;
9139 Elf_Internal_Rela
*irel
;
9140 Elf_Internal_Rela
*irelend
;
9141 struct elf_link_hash_entry
**sym_hashes
;
9142 struct elf_link_hash_entry
**end_hashes
;
9143 unsigned int symcount
;
9145 nds32_elf_blank_t
*blank_t
;
9146 nds32_elf_blank_t
*blank_t2
;
9147 nds32_elf_blank_t
*blank_head
;
9149 blank_head
= blank_t
= blank_p
;
9150 while (blank_head
->prev
!= NULL
)
9151 blank_head
= blank_head
->prev
;
9152 while (blank_t
->next
!= NULL
)
9153 blank_t
= blank_t
->next
;
9155 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
9157 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
9158 blank_t
->next
->prev
= blank_t
;
9160 if (blank_head
->offset
> 0)
9162 blank_head
->prev
= create_nds32_elf_blank (0, 0);
9163 blank_head
->prev
->next
= blank_head
;
9164 blank_head
= blank_head
->prev
;
9167 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
9169 /* The deletion must stop at the next ALIGN reloc for an alignment
9170 power larger than the number of bytes we are deleting. */
9172 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9173 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
9178 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9179 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
9180 symtab_hdr
->contents
= (bfd_byte
*) isym
;
9183 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
9186 blank_t
= blank_head
;
9187 calc_nds32_blank_total (blank_head
);
9189 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
9191 /* Adjust all the relocs. */
9193 /* Relocations MUST be kept in memory, because relaxation adjust them. */
9194 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
9195 TRUE
/* keep_memory */);
9196 irelend
= internal_relocs
+ sect
->reloc_count
;
9198 blank_t
= blank_head
;
9199 blank_t2
= blank_head
;
9201 if (!(sect
->flags
& SEC_RELOC
))
9205 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
9207 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
9211 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
9212 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
9213 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9215 unsigned long val
= 0;
9217 long before
, between
;
9220 switch (ELF32_R_TYPE (irel
->r_info
))
9223 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
9225 case R_NDS32_DIFF16
:
9226 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
9228 case R_NDS32_DIFF32
:
9229 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
9230 /* Get the signed bit and mask for the high part. The
9231 gcc will alarm when right shift 32-bit since the
9232 type size of long may be 32-bit. */
9233 mask
= 0 - (val
>> 31);
9235 offset
= (val
| (mask
- 0xffffffff));
9244 0 |encoded in location|
9245 |------------|-------------------|---------
9247 -- before ---| *****************
9248 --------------------- between ---|
9250 We only care how much data are relax between DIFF,
9253 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9254 between
= get_nds32_elf_blank_total (&blank_t
,
9255 irel
->r_addend
+ offset
, 0);
9256 if (between
== before
)
9257 goto done_adjust_diff
;
9259 switch (ELF32_R_TYPE (irel
->r_info
))
9262 bfd_put_8 (abfd
, offset
- (between
- before
),
9263 contents
+ irel
->r_offset
);
9265 case R_NDS32_DIFF16
:
9266 bfd_put_16 (abfd
, offset
- (between
- before
),
9267 contents
+ irel
->r_offset
);
9269 case R_NDS32_DIFF32
:
9270 bfd_put_32 (abfd
, offset
- (between
- before
),
9271 contents
+ irel
->r_offset
);
9275 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
9276 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9279 unsigned int len
= 0;
9280 unsigned long before
, between
;
9283 val
= _bfd_read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
9286 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9287 between
= get_nds32_elf_blank_total (&blank_t
,
9288 irel
->r_addend
+ val
, 0);
9289 if (between
== before
)
9290 goto done_adjust_diff
;
9292 p
= contents
+ irel
->r_offset
;
9294 memset (p
, 0x80, len
);
9296 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
9304 raddr
= irel
->r_offset
;
9305 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
9308 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
9310 if (blank_t2
&& blank_t2
->next
9311 && (blank_t2
->offset
> raddr
9312 || blank_t2
->next
->offset
<= raddr
))
9314 (_("%pB: error: search_nds32_elf_blank reports wrong node"),
9317 /* Mark reloc in deleted portion as NONE.
9318 For some relocs like R_NDS32_LABEL that doesn't modify the
9319 content in the section. R_NDS32_LABEL doesn't belong to the
9320 instruction in the section, so we should preserve it. */
9321 if (raddr
>= blank_t2
->offset
9322 && raddr
< blank_t2
->offset
+ blank_t2
->size
9323 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
9324 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
9325 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
9326 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
9327 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
9328 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
9330 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
9336 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
9337 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
9338 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
9341 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
9342 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
9343 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
9345 if (irel
->r_addend
<= sec
->size
)
9347 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
9352 /* Adjust the local symbols defined in this section. */
9353 blank_t
= blank_head
;
9354 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
9356 if (isym
->st_shndx
== sec_shndx
)
9358 if (isym
->st_value
<= sec
->size
)
9361 bfd_vma orig_addr
= isym
->st_value
;
9363 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
9364 isym
->st_value
-= ahead
;
9366 /* Adjust function size. */
9367 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
9368 && isym
->st_size
> 0)
9370 get_nds32_elf_blank_total
9371 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
9376 /* Now adjust the global symbols defined in this section. */
9377 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
9378 - symtab_hdr
->sh_info
);
9379 sym_hashes
= elf_sym_hashes (abfd
);
9380 end_hashes
= sym_hashes
+ symcount
;
9381 blank_t
= blank_head
;
9382 for (; sym_hashes
< end_hashes
; sym_hashes
++)
9384 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
9386 if ((sym_hash
->root
.type
== bfd_link_hash_defined
9387 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
9388 && sym_hash
->root
.u
.def
.section
== sec
)
9390 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
9393 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
9395 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
9396 sym_hash
->root
.u
.def
.value
-= ahead
;
9398 /* Adjust function size. */
9399 if (sym_hash
->type
== STT_FUNC
)
9401 get_nds32_elf_blank_total
9402 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
9408 contents
= elf_section_data (sec
)->this_hdr
.contents
;
9409 blank_t
= blank_head
;
9410 while (blank_t
->next
)
9412 /* Actually delete the bytes. */
9414 /* If current blank is the last blank overlap with current section,
9415 go to finish process. */
9416 if (sec
->size
<= (blank_t
->next
->offset
))
9419 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9420 contents
+ blank_t
->offset
+ blank_t
->size
,
9421 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
9423 blank_t
= blank_t
->next
;
9426 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
9428 /* There are remaining code between blank and section boundary.
9429 Move the remaining code to appropriate location. */
9430 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9431 contents
+ blank_t
->offset
+ blank_t
->size
,
9432 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
9433 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
9436 /* This blank is not entirely included in the section,
9437 reduce the section size by only part of the blank size. */
9438 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
9442 blank_t
= blank_head
;
9443 blank_head
= blank_head
->next
;
9444 remove_nds32_elf_blank (blank_t
);
9450 /* Get the contents of a section. */
9453 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
9454 bfd_byte
**contents_p
, bfd_boolean cache
)
9456 /* Get the section contents. */
9457 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
9458 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
9461 if (!bfd_get_full_section_contents (abfd
, sec
, contents_p
))
9464 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
9470 /* Get the contents of the internal symbol of abfd. */
9473 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
9474 Elf_Internal_Sym
**isymbuf_p
)
9476 Elf_Internal_Shdr
*symtab_hdr
;
9477 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9479 /* Read this BFD's local symbols if we haven't done so already. */
9480 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
9482 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
9483 if (*isymbuf_p
== NULL
)
9485 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9486 symtab_hdr
->sh_info
, 0,
9488 if (*isymbuf_p
== NULL
)
9492 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
9497 /* Range of small data. */
9498 static bfd_vma sdata_range
[2][2];
9499 static bfd_vma
const sdata_init_range
[2] =
9500 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
9503 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
9504 bfd_byte
*contents
, bfd_vma addr
)
9506 unsigned long insn
= bfd_getb32 (contents
+ addr
);
9508 if (insn
& 0x80000000)
9514 /* Set the gp relax range. We have to measure the safe range
9515 to do gp relaxation. */
9518 relax_range_measurement (bfd
*abfd
, struct bfd_link_info
*link_info
)
9520 asection
*sec_f
, *sec_b
;
9521 /* For upper bound. */
9524 static int decide_relax_range
= 0;
9526 int range_number
= ARRAY_SIZE (sdata_init_range
);
9528 if (decide_relax_range
)
9530 decide_relax_range
= 1;
9532 if (sda_rela_sec
== NULL
)
9534 /* Since there is no data sections, we assume the range is page size. */
9535 for (i
= 0; i
< range_number
; i
++)
9537 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9538 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9543 /* Get the biggest alignment power after the gp located section. */
9544 sec_f
= sda_rela_sec
->output_section
;
9545 sec_b
= sec_f
->next
;
9547 while (sec_b
!= NULL
)
9549 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9550 align
= (1 << sec_b
->alignment_power
);
9551 sec_b
= sec_b
->next
;
9554 if (link_info
!= NULL
)
9555 maxpgsz
= link_info
->maxpagesize
;
9557 maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
9558 /* I guess we can not determine the section before
9559 gp located section, so we assume the align is max page size. */
9560 for (i
= 0; i
< range_number
; i
++)
9562 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9563 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9564 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9565 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9569 /* These are macros used to check flags encoded in r_addend.
9570 They are only used by nds32_elf_relax_section (). */
9571 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9572 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9573 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9574 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9576 static const char * unrecognized_reloc_msg
=
9577 /* xgettext:c-format */
9578 N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64
);
9580 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9583 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9584 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9585 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9586 Elf_Internal_Shdr
*symtab_hdr
)
9588 /* There are 3 variations for LONGCALL1
9589 case 4-4-2; 16-bit on, optimize off or optimize for space
9590 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9591 ori ta, ta, lo12(symbol) ; LO12S0
9594 case 4-4-4; 16-bit off, optimize don't care
9595 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9596 ori ta, ta, lo12(symbol) ; LO12S0
9599 case 4-4-4; 16-bit on, optimize for speed
9600 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9601 ori ta, ta, lo12(symbol) ; LO12S0
9603 Check code for -mlong-calls output. */
9605 /* Get the reloc for the address from which the register is
9606 being loaded. This reloc will tell us which function is
9607 actually being called. */
9610 int seq_len
; /* Original length of instruction sequence. */
9612 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9613 bfd_signed_vma foff
;
9616 irelend
= internal_relocs
+ sec
->reloc_count
;
9617 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9618 laddr
= irel
->r_offset
;
9619 *insn_len
= seq_len
;
9621 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9622 R_NDS32_HI20_RELA
, laddr
);
9623 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9624 R_NDS32_LO12S0_ORI_RELA
,
9627 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9629 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL1",
9630 (uint64_t) irel
->r_offset
);
9634 /* Get the value of the symbol referred to by the reloc. */
9635 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9637 /* This condition only happened when symbol is undefined. */
9639 || foff
< -CONSERVATIVE_24BIT_S1
9640 || foff
>= CONSERVATIVE_24BIT_S1
)
9643 /* Relax to: jal symbol; 25_PCREL. */
9644 /* For simplicity of coding, we are going to modify the section
9645 contents, the section relocs, and the BFD symbol table. We
9646 must tell the rest of the code not to free up this
9647 information. It would be possible to instead create a table
9648 of changes which have to be made, as is done in coff-mips.c;
9649 that would be more work, but would require less memory when
9650 the linker is run. */
9652 /* Replace the long call with a jal. */
9653 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9654 R_NDS32_25_PCREL_RELA
);
9655 irel
->r_addend
= hi_irelfn
->r_addend
;
9657 /* We don't resolve this here but resolve it in relocate_section. */
9659 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9662 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9664 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9669 insn16
= NDS32_NOP16
;
9670 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9672 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9673 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9679 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9680 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9683 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9684 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9685 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9686 Elf_Internal_Shdr
*symtab_hdr
)
9688 /* bltz rt, .L1 ; LONGCALL2
9689 jal symbol ; 25_PCREL
9692 /* Get the reloc for the address from which the register is
9693 being loaded. This reloc will tell us which function is
9694 actually being called. */
9698 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9699 bfd_signed_vma foff
;
9701 irelend
= internal_relocs
+ sec
->reloc_count
;
9702 laddr
= irel
->r_offset
;
9704 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9705 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9707 if (i1_irelfn
== irelend
)
9709 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL2",
9710 (uint64_t) irel
->r_offset
);
9714 insn
= bfd_getb32 (contents
+ laddr
);
9716 /* Get the value of the symbol referred to by the reloc. */
9717 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
);
9720 || foff
< -CONSERVATIVE_16BIT_S1
9721 || foff
>= CONSERVATIVE_16BIT_S1
)
9724 /* Relax to bgezal rt, label ; 17_PCREL
9725 or bltzal rt, label ; 17_PCREL */
9727 /* Convert to complimentary conditional call. */
9728 insn
= CONVERT_CONDITION_CALL (insn
);
9730 /* For simplicity of coding, we are going to modify the section
9731 contents, the section relocs, and the BFD symbol table. We
9732 must tell the rest of the code not to free up this
9733 information. It would be possible to instead create a table
9734 of changes which have to be made, as is done in coff-mips.c;
9735 that would be more work, but would require less memory when
9736 the linker is run. */
9738 /* Clean unnessary relocations. */
9740 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9742 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9743 R_NDS32_17_PCREL_RELA
, laddr
);
9744 if (cond_irelfn
!= irelend
)
9745 cond_irelfn
->r_info
=
9746 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9748 /* Replace the long call with a bgezal. */
9749 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9750 R_NDS32_17_PCREL_RELA
);
9751 irel
->r_addend
= i1_irelfn
->r_addend
;
9753 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9759 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9762 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9763 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9764 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9765 Elf_Internal_Shdr
*symtab_hdr
)
9767 /* There are 3 variations for LONGCALL3
9768 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9769 bltz rt, $1 ; LONGCALL3
9770 sethi ta, hi20(symbol) ; HI20
9771 ori ta, ta, lo12(symbol) ; LO12S0
9775 case 4-4-4-4; 16-bit off, optimize don't care
9776 bltz rt, $1 ; LONGCALL3
9777 sethi ta, hi20(symbol) ; HI20
9778 ori ta, ta, lo12(symbol) ; LO12S0
9782 case 4-4-4-4; 16-bit on, optimize for speed
9783 bltz rt, $1 ; LONGCALL3
9784 sethi ta, hi20(symbol) ; HI20
9785 ori ta, ta, lo12(symbol) ; LO12S0
9789 /* Get the reloc for the address from which the register is
9790 being loaded. This reloc will tell us which function is
9791 actually being called. */
9794 int seq_len
; /* Original length of instruction sequence. */
9796 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9797 bfd_signed_vma foff
;
9800 irelend
= internal_relocs
+ sec
->reloc_count
;
9801 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9802 laddr
= irel
->r_offset
;
9803 *insn_len
= seq_len
;
9806 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9807 R_NDS32_HI20_RELA
, laddr
+ 4);
9809 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9810 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9812 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9814 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL3",
9815 (uint64_t) irel
->r_offset
);
9819 /* Get the value of the symbol referred to by the reloc. */
9820 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9823 || foff
< -CONSERVATIVE_24BIT_S1
9824 || foff
>= CONSERVATIVE_24BIT_S1
)
9827 insn
= bfd_getb32 (contents
+ laddr
);
9828 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9830 /* Relax to bgezal rt, label ; 17_PCREL
9831 or bltzal rt, label ; 17_PCREL */
9833 /* Convert to complimentary conditional call. */
9834 insn
= CONVERT_CONDITION_CALL (insn
);
9835 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9839 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9841 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9843 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9846 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9847 R_NDS32_17_PCREL_RELA
, laddr
);
9848 if (cond_irelfn
!= irelend
)
9850 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9851 R_NDS32_17_PCREL_RELA
);
9852 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9857 insn16
= NDS32_NOP16
;
9858 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9859 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9861 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9865 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9867 /* Relax to the following instruction sequence
9868 bltz rt, $1 ; LONGCALL2
9869 jal symbol ; 25_PCREL
9873 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9875 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9876 R_NDS32_25_PCREL_RELA
);
9878 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9881 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9885 insn16
= NDS32_NOP16
;
9886 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9888 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9889 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9896 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9899 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9900 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9901 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9902 Elf_Internal_Shdr
*symtab_hdr
)
9904 /* There are 3 variations for LONGJUMP1
9905 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9906 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9907 ori ta, ta, lo12(symbol) ; LO12S0
9910 case 4-4-4; 16-bit off, optimize don't care
9911 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9912 ori ta, ta, lo12(symbol) ; LO12S0
9915 case 4-4-4; 16-bit on, optimize for speed
9916 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9917 ori ta, ta, lo12(symbol) ; LO12S0
9920 /* Get the reloc for the address from which the register is
9921 being loaded. This reloc will tell us which function is
9922 actually being called. */
9925 int seq_len
; /* Original length of instruction sequence. */
9926 int insn16_on
; /* 16-bit on/off. */
9928 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9929 bfd_signed_vma foff
;
9931 unsigned long reloc
;
9933 irelend
= internal_relocs
+ sec
->reloc_count
;
9934 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9935 laddr
= irel
->r_offset
;
9936 *insn_len
= seq_len
;
9937 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
9940 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9941 R_NDS32_HI20_RELA
, laddr
);
9943 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9944 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
9945 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9947 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP1",
9948 (uint64_t) irel
->r_offset
);
9952 /* Get the value of the symbol referred to by the reloc. */
9953 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9956 || foff
>= CONSERVATIVE_24BIT_S1
9957 || foff
< -CONSERVATIVE_24BIT_S1
)
9961 && foff
>= -ACCURATE_8BIT_S1
9962 && foff
< ACCURATE_8BIT_S1
9966 /* 16-bit on, but not optimized for speed. */
9967 reloc
= R_NDS32_9_PCREL_RELA
;
9969 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
9972 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
9977 reloc
= R_NDS32_25_PCREL_RELA
;
9979 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9982 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
9987 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9989 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9991 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
9993 insn16
= NDS32_NOP16
;
9994 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9996 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9998 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10004 /* Revert condition branch. This function does not check if the input
10005 instruction is condition branch or not. */
10008 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
10009 uint16_t *re_insn16
, uint32_t *re_insn
)
10011 uint32_t comp_insn
= 0;
10012 uint16_t comp_insn16
= 0;
10016 if (N32_OP6 (insn
) == N32_OP6_BR1
)
10019 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
10020 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
10022 /* Insn can be contracted to 16-bit implied r5. */
10024 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
10025 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10028 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
10030 /* bnec $ta, imm11, label. */
10031 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
10035 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
10036 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
10037 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
10039 if (N32_IS_RT3 (insn
))
10041 /* Insn can be contracted to 16-bit. */
10043 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
10044 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10046 else if (N32_RT5 (insn
) == REG_R15
)
10048 /* Insn can be contracted to 16-bit. */
10050 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
10057 switch ((insn16
& 0xf000) >> 12)
10060 /* beqz38 or bnez38 */
10061 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10062 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
10063 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
10067 /* beqs38 or bnes38 */
10068 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10069 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
10070 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
10075 /* beqzS8 or bnezS8 */
10076 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
10077 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
10078 comp_insn
|= REG_R15
<< 20;
10085 if (comp_insn
&& re_insn
)
10086 *re_insn
= comp_insn
;
10087 if (comp_insn16
&& re_insn16
)
10088 *re_insn16
= comp_insn16
;
10091 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
10094 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10095 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10096 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10097 Elf_Internal_Shdr
*symtab_hdr
)
10099 /* There are 3 variations for LONGJUMP2
10100 case 2-4; 1st insn convertible, 16-bit on,
10101 optimize off or optimize for space
10102 bnes38 rt, ra, $1 ; LONGJUMP2
10106 case 4-4; 1st insn not convertible
10107 bne rt, ra, $1 ; LONGJUMP2
10111 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10112 bne rt, ra, $1 ; LONGJUMP2
10116 /* Get the reloc for the address from which the register is
10117 being loaded. This reloc will tell us which function is
10118 actually being called. */
10121 int seq_len
; /* Original length of instruction sequence. */
10122 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
10125 bfd_signed_vma foff
;
10126 uint32_t insn
, re_insn
= 0;
10127 uint16_t insn16
, re_insn16
= 0;
10128 unsigned long reloc
, cond_reloc
;
10130 enum elf_nds32_reloc_type checked_types
[] =
10131 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10133 irelend
= internal_relocs
+ sec
->reloc_count
;
10134 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10135 laddr
= irel
->r_offset
;
10136 *insn_len
= seq_len
;
10137 first_size
= (seq_len
== 6) ? 2 : 4;
10140 find_relocs_at_address_addr (irel
, internal_relocs
,
10141 irelend
, R_NDS32_25_PCREL_RELA
,
10142 laddr
+ first_size
);
10144 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10147 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10148 checked_types
[i
], laddr
);
10149 if (cond_irelfn
!= irelend
)
10153 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
10155 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP2",
10156 (uint64_t) irel
->r_offset
);
10160 /* Get the value of the symbol referred to by the reloc. */
10161 foff
= calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
);
10163 || foff
< -CONSERVATIVE_16BIT_S1
10164 || foff
>= CONSERVATIVE_16BIT_S1
)
10167 /* Get the all corresponding instructions. */
10168 if (first_size
== 4)
10170 insn
= bfd_getb32 (contents
+ laddr
);
10171 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10175 insn16
= bfd_getb16 (contents
+ laddr
);
10176 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10179 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
10180 && foff
< ACCURATE_8BIT_S1
- first_size
)
10182 if (first_size
== 4)
10184 /* Don't convert it to 16-bit now, keep this as relaxable for
10185 ``label reloc; INSN16''. */
10187 /* Save comp_insn32 to buffer. */
10188 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10190 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10191 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10192 cond_reloc
= R_NDS32_INSN16
;
10196 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10198 reloc
= R_NDS32_9_PCREL_RELA
;
10199 cond_reloc
= R_NDS32_NONE
;
10202 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10203 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10204 && foff
< ACCURATE_14BIT_S1
- first_size
))
10206 /* beqs label ; 15_PCREL */
10207 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10209 reloc
= R_NDS32_15_PCREL_RELA
;
10210 cond_reloc
= R_NDS32_NONE
;
10212 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10213 && foff
>= -CONSERVATIVE_16BIT_S1
10214 && foff
< CONSERVATIVE_16BIT_S1
)
10216 /* beqz label ; 17_PCREL */
10217 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10219 reloc
= R_NDS32_17_PCREL_RELA
;
10220 cond_reloc
= R_NDS32_NONE
;
10225 /* Set all relocations. */
10226 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
10227 irel
->r_addend
= i2_irelfn
->r_addend
;
10229 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10231 cond_irelfn
->r_addend
= 0;
10233 if ((seq_len
^ *insn_len
) & 0x2)
10235 insn16
= NDS32_NOP16
;
10236 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
10237 i2_irelfn
->r_offset
= 4;
10238 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10240 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10244 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10249 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
10252 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10253 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10254 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10255 Elf_Internal_Shdr
*symtab_hdr
)
10257 /* There are 5 variations for LONGJUMP3
10258 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
10259 optimize off or optimize for space
10260 bnes38 rt, ra, $1 ; LONGJUMP3
10261 sethi ta, hi20(symbol) ; HI20
10262 ori ta, ta, lo12(symbol) ; LO12S0
10266 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
10267 bnes38 rt, ra, $1 ; LONGJUMP3
10268 sethi ta, hi20(symbol) ; HI20
10269 ori ta, ta, lo12(symbol) ; LO12S0
10273 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
10274 optimize off or optimize for space
10275 bne rt, ra, $1 ; LONGJUMP3
10276 sethi ta, hi20(symbol) ; HI20
10277 ori ta, ta, lo12(symbol) ; LO12S0
10281 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
10282 16-bit off if no INSN16
10283 bne rt, ra, $1 ; LONGJUMP3
10284 sethi ta, hi20(symbol) ; HI20
10285 ori ta, ta, lo12(symbol) ; LO12S0
10289 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
10290 16-bit off if no INSN16
10291 bne rt, ra, $1 ; LONGJUMP3
10292 sethi ta, hi20(symbol) ; HI20
10293 ori ta, ta, lo12(symbol) ; LO12S0
10297 /* Get the reloc for the address from which the register is
10298 being loaded. This reloc will tell us which function is
10299 actually being called. */
10300 enum elf_nds32_reloc_type checked_types
[] =
10301 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10303 int reloc_off
= 0, cond_removed
= 0, convertible
;
10305 int seq_len
; /* Original length of instruction sequence. */
10306 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
10309 bfd_signed_vma foff
;
10310 uint32_t insn
, re_insn
= 0;
10311 uint16_t insn16
, re_insn16
= 0;
10312 unsigned long reloc
, cond_reloc
;
10314 irelend
= internal_relocs
+ sec
->reloc_count
;
10315 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10316 laddr
= irel
->r_offset
;
10317 *insn_len
= seq_len
;
10319 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
10326 /* Get all needed relocations. */
10328 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10329 R_NDS32_HI20_RELA
, laddr
+ first_size
);
10331 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10332 R_NDS32_LO12S0_ORI_RELA
,
10333 laddr
+ first_size
+ 4);
10335 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10338 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10339 checked_types
[i
], laddr
);
10340 if (cond_irelfn
!= irelend
)
10344 if (hi_irelfn
== irelend
10345 || lo_irelfn
== irelend
10346 || cond_irelfn
== irelend
)
10348 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP3",
10349 (uint64_t) irel
->r_offset
);
10353 /* Get the value of the symbol referred to by the reloc. */
10354 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10357 || foff
< -CONSERVATIVE_24BIT_S1
10358 || foff
>= CONSERVATIVE_24BIT_S1
)
10361 /* Get the all corresponding instructions. */
10362 if (first_size
== 4)
10364 insn
= bfd_getb32 (contents
+ laddr
);
10365 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10369 insn16
= bfd_getb16 (contents
+ laddr
);
10370 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10373 /* For simplicity of coding, we are going to modify the section
10374 contents, the section relocs, and the BFD symbol table. We
10375 must tell the rest of the code not to free up this
10376 information. It would be possible to instead create a table
10377 of changes which have to be made, as is done in coff-mips.c;
10378 that would be more work, but would require less memory when
10379 the linker is run. */
10382 && foff
>= -ACCURATE_8BIT_S1
- first_size
10383 && foff
< ACCURATE_8BIT_S1
- first_size
)
10385 if (!(seq_len
& 0x2))
10387 /* Don't convert it to 16-bit now, keep this as relaxable
10388 for ``label reloc; INSN1a''6. */
10389 /* Save comp_insn32 to buffer. */
10390 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10392 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10393 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10394 cond_reloc
= R_NDS32_INSN16
;
10398 /* Not optimize for speed; convert sequence to 16-bit. */
10399 /* Save comp_insn16 to buffer. */
10400 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10402 reloc
= R_NDS32_9_PCREL_RELA
;
10403 cond_reloc
= R_NDS32_NONE
;
10407 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10408 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10409 && foff
< ACCURATE_14BIT_S1
- first_size
))
10411 /* beqs label ; 15_PCREL */
10412 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10414 reloc
= R_NDS32_15_PCREL_RELA
;
10415 cond_reloc
= R_NDS32_NONE
;
10418 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10419 && foff
>= -CONSERVATIVE_16BIT_S1
10420 && foff
< CONSERVATIVE_16BIT_S1
)
10422 /* beqz label ; 17_PCREL */
10423 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10425 reloc
= R_NDS32_17_PCREL_RELA
;
10426 cond_reloc
= R_NDS32_NONE
;
10429 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10430 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10432 /* Relax to one of the following 3 variations
10434 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
10436 bnes38 rt, $1 ; LONGJUMP2
10440 case 4-4; 1st insn not convertible, others don't care
10441 bne rt, ra, $1 ; LONGJUMP2
10445 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10446 bne rt, ra, $1 ; LONGJUMP2
10450 /* Offset for first instruction. */
10452 /* Use j label as second instruction. */
10453 *insn_len
= 4 + first_size
;
10455 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
10456 reloc
= R_NDS32_LONGJUMP2
;
10457 cond_reloc
= R_NDS32_25_PLTREL
;
10462 if (cond_removed
== 1)
10464 /* Set all relocations. */
10465 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10466 irel
->r_addend
= hi_irelfn
->r_addend
;
10468 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10470 cond_irelfn
->r_addend
= 0;
10471 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10476 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10477 irel
->r_addend
= irel
->r_addend
;
10478 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10482 if ((seq_len
^ *insn_len
) & 0x2)
10484 insn16
= NDS32_NOP16
;
10485 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10486 lo_irelfn
->r_offset
= *insn_len
;
10487 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10489 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10493 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10498 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
10501 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10502 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10503 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10504 Elf_Internal_Shdr
*symtab_hdr
)
10506 /* The pattern for LONGCALL4. Support for function cse.
10507 sethi ta, hi20(symbol) ; LONGCALL4/HI20
10508 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10509 jral ta ; PTR_RES/EMPTY/INSN16 */
10513 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
10514 Elf_Internal_Rela
*irelend
;
10515 bfd_signed_vma foff
;
10517 irelend
= internal_relocs
+ sec
->reloc_count
;
10518 laddr
= irel
->r_offset
;
10520 /* Get the reloc for the address from which the register is
10521 being loaded. This reloc will tell us which function is
10522 actually being called. */
10523 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10524 R_NDS32_HI20_RELA
, laddr
);
10526 if (hi_irel
== irelend
)
10528 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10529 (uint64_t) irel
->r_offset
);
10533 /* Get the value of the symbol referred to by the reloc. */
10534 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10536 /* This condition only happened when symbol is undefined. */
10538 || foff
< -CONSERVATIVE_24BIT_S1
10539 || foff
>= CONSERVATIVE_24BIT_S1
)
10542 /* Relax to: jal symbol; 25_PCREL. */
10543 /* For simplicity of coding, we are going to modify the section
10544 contents, the section relocs, and the BFD symbol table. We
10545 must tell the rest of the code not to free up this
10546 information. It would be possible to instead create a table
10547 of changes which have to be made, as is done in coff-mips.c;
10548 that would be more work, but would require less memory when
10549 the linker is run. */
10551 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10552 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10553 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10554 R_NDS32_EMPTY
, irel
->r_addend
);
10556 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10558 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10559 (uint64_t) irel
->r_offset
);
10562 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10563 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10564 if (insn
& 0x80000000)
10567 /* Replace the long call with a jal. */
10568 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10569 R_NDS32_25_PCREL_RELA
);
10570 ptr_irel
->r_addend
= 1;
10572 /* We don't resolve this here but resolve it in relocate_section. */
10574 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10577 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10579 /* If there is function cse, HI20 can not remove now. */
10580 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10581 R_NDS32_LONGCALL4
, laddr
);
10582 if (call_irel
== irelend
)
10586 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10589 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10590 R_NDS32_INSN16
, irel
->r_addend
);
10591 if (insn_irel
!= irelend
)
10592 insn_irel
->r_info
=
10593 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10598 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10601 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10602 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10603 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10604 Elf_Internal_Shdr
*symtab_hdr
)
10606 /* The pattern for LONGCALL5.
10607 bltz rt, .L1 ; LONGCALL5/17_PCREL
10608 jal symbol ; 25_PCREL
10613 Elf_Internal_Rela
*cond_irel
, *irelend
;
10614 bfd_signed_vma foff
;
10616 irelend
= internal_relocs
+ sec
->reloc_count
;
10617 laddr
= irel
->r_offset
;
10618 insn
= bfd_getb32 (contents
+ laddr
);
10620 /* Get the reloc for the address from which the register is
10621 being loaded. This reloc will tell us which function is
10622 actually being called. */
10624 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10625 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10626 if (cond_irel
== irelend
)
10628 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL5",
10629 (uint64_t) irel
->r_offset
);
10633 /* Get the value of the symbol referred to by the reloc. */
10634 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10637 || foff
< -CONSERVATIVE_16BIT_S1
10638 || foff
>= CONSERVATIVE_16BIT_S1
)
10641 /* Relax to bgezal rt, label ; 17_PCREL
10642 or bltzal rt, label ; 17_PCREL. */
10644 /* Convert to complimentary conditional call. */
10645 insn
= CONVERT_CONDITION_CALL (insn
);
10647 /* For simplicity of coding, we are going to modify the section
10648 contents, the section relocs, and the BFD symbol table. We
10649 must tell the rest of the code not to free up this
10650 information. It would be possible to instead create a table
10651 of changes which have to be made, as is done in coff-mips.c;
10652 that would be more work, but would require less memory when
10653 the linker is run. */
10655 /* Modify relocation and contents. */
10656 cond_irel
->r_info
=
10657 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10659 /* Replace the long call with a bgezal. */
10660 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10663 /* Clean unnessary relocations. */
10664 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10666 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10667 R_NDS32_17_PCREL_RELA
, laddr
);
10668 cond_irel
->r_info
=
10669 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10674 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10677 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10678 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10679 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10680 Elf_Internal_Shdr
*symtab_hdr
)
10682 /* The pattern for LONGCALL6.
10683 bltz rt, .L1 ; LONGCALL6/17_PCREL
10684 sethi ta, hi20(symbol) ; HI20/PTR
10685 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10686 jral ta ; PTR_RES/EMPTY/INSN16
10691 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10692 bfd_signed_vma foff
;
10694 irelend
= internal_relocs
+ sec
->reloc_count
;
10695 laddr
= irel
->r_offset
;
10697 /* Get the reloc for the address from which the register is
10698 being loaded. This reloc will tell us which function is
10699 actually being called. */
10700 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10701 R_NDS32_EMPTY
, irel
->r_addend
);
10703 if (em_irel
== irelend
)
10705 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL6",
10706 (uint64_t) irel
->r_offset
);
10710 /* Get the value of the symbol referred to by the reloc. */
10711 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
10714 || foff
< -CONSERVATIVE_24BIT_S1
10715 || foff
>= CONSERVATIVE_24BIT_S1
)
10718 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10719 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10720 if (insn
& 0x80000000)
10723 insn
= bfd_getb32 (contents
+ laddr
);
10724 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10726 /* Relax to bgezal rt, label ; 17_PCREL
10727 or bltzal rt, label ; 17_PCREL. */
10729 /* Convert to complimentary conditional call. */
10731 insn
= CONVERT_CONDITION_CALL (insn
);
10732 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10735 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10737 /* Set resolved relocation. */
10739 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10740 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10741 if (cond_irel
== irelend
)
10743 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10744 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10747 cond_irel
->r_addend
= 1;
10749 /* Clear relocations. */
10752 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10755 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10756 R_NDS32_17_PCREL_RELA
, laddr
);
10757 if (cond_irel
!= irelend
)
10758 cond_irel
->r_info
=
10759 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10762 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10763 R_NDS32_INSN16
, irel
->r_addend
);
10764 if (cond_irel
!= irelend
)
10765 cond_irel
->r_info
=
10766 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10769 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10771 /* Relax to the following instruction sequence
10772 bltz rt, .L1 ; LONGCALL2/17_PCREL
10773 jal symbol ; 25_PCREL/PTR_RES
10776 /* Convert instruction. */
10778 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10780 /* Convert relocations. */
10781 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10782 R_NDS32_25_PCREL_RELA
);
10784 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10786 /* Set resolved relocation. */
10788 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10789 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10790 if (cond_irel
== irelend
)
10792 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10793 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10796 cond_irel
->r_addend
= 1;
10799 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10800 R_NDS32_INSN16
, irel
->r_addend
);
10801 if (cond_irel
!= irelend
)
10802 cond_irel
->r_info
=
10803 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10808 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10811 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10812 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10813 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10814 Elf_Internal_Shdr
*symtab_hdr
)
10816 /* The pattern for LONGJUMP4.
10817 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10818 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10819 jr ta ; PTR_RES/INSN16/EMPTY */
10822 int seq_len
; /* Original length of instruction sequence. */
10824 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10825 bfd_signed_vma foff
;
10827 irelend
= internal_relocs
+ sec
->reloc_count
;
10828 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10829 laddr
= irel
->r_offset
;
10830 *insn_len
= seq_len
;
10832 /* Get the reloc for the address from which the register is
10833 being loaded. This reloc will tell us which function is
10834 actually being called. */
10836 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10837 R_NDS32_HI20_RELA
, laddr
);
10839 if (hi_irel
== irelend
)
10841 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10842 (uint64_t) irel
->r_offset
);
10846 /* Get the value of the symbol referred to by the reloc. */
10847 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10850 || foff
>= CONSERVATIVE_24BIT_S1
10851 || foff
< -CONSERVATIVE_24BIT_S1
)
10854 /* Convert it to "j label", it may be converted to j8 in the final
10855 pass of relaxation. Therefore, we do not consider this currently. */
10856 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10857 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10858 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10859 R_NDS32_EMPTY
, irel
->r_addend
);
10861 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10863 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10864 (uint64_t) irel
->r_offset
);
10869 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10870 ptr_irel
->r_addend
= 1;
10872 /* Write instruction. */
10874 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10876 /* Clear relocations. */
10877 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10879 /* If there is function cse, HI20 can not remove now. */
10880 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10881 R_NDS32_LONGJUMP4
, laddr
);
10882 if (call_irel
== irelend
)
10886 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10892 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10895 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10896 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10897 int *seq_len
, bfd_byte
*contents
,
10898 Elf_Internal_Sym
*isymbuf
,
10899 Elf_Internal_Shdr
*symtab_hdr
)
10901 /* There are 2 variations for LONGJUMP5
10902 case 2-4; 1st insn convertible, 16-bit on.
10903 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10904 j label ; 25_PCREL/INSN16
10907 case 4-4; 1st insn not convertible
10908 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10909 j label ; 25_PCREL/INSN16
10913 Elf_Internal_Rela
*cond_irel
, *irelend
;
10915 bfd_signed_vma foff
;
10916 uint32_t insn
, re_insn
= 0;
10917 uint16_t insn16
, re_insn16
= 0;
10918 unsigned long reloc
;
10920 enum elf_nds32_reloc_type checked_types
[] =
10921 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10922 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10924 irelend
= internal_relocs
+ sec
->reloc_count
;
10925 laddr
= irel
->r_offset
;
10927 /* Get the reloc for the address from which the register is
10928 being loaded. This reloc will tell us which function is
10929 actually being called. */
10932 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10933 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10934 if (cond_irel
== irelend
)
10936 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP5",
10937 (uint64_t) irel
->r_offset
);
10941 /* Get the value of the symbol referred to by the reloc. */
10942 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10945 || foff
< -CONSERVATIVE_16BIT_S1
10946 || foff
>= CONSERVATIVE_16BIT_S1
)
10949 /* Get the all corresponding instructions. */
10950 insn
= bfd_getb32 (contents
+ laddr
);
10951 /* Check instruction size. */
10952 if (insn
& 0x80000000)
10955 insn16
= insn
>> 16;
10956 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10959 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10961 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10962 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10964 /* beqs label ; 15_PCREL. */
10965 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10966 reloc
= R_NDS32_15_PCREL_RELA
;
10968 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10969 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10971 /* beqz label ; 17_PCREL. */
10972 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10973 reloc
= R_NDS32_17_PCREL_RELA
;
10975 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
10976 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
10978 /* beqc label ; 9_PCREL. */
10979 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10980 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
10985 /* Set all relocations. */
10986 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
10988 /* Clean relocations. */
10989 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10990 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10992 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10993 checked_types
[i
], laddr
);
10994 if (cond_irel
!= irelend
)
10997 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10999 /* If the branch instruction is 2 byte, it cannot remove
11000 directly. Only convert it to nop16 and remove it after
11001 checking alignment issue. */
11002 insn16
= NDS32_NOP16
;
11003 bfd_putb16 (insn16
, contents
+ laddr
);
11004 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11007 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11016 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
11019 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11020 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11021 int *seq_len
, bfd_byte
*contents
,
11022 Elf_Internal_Sym
*isymbuf
,
11023 Elf_Internal_Shdr
*symtab_hdr
)
11025 /* There are 5 variations for LONGJUMP6
11026 case : 2-4-4-4; 1st insn convertible, 16-bit on.
11027 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11028 sethi ta, hi20(symbol) ; HI20/PTR
11029 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11030 jr ta ; PTR_RES/INSN16/EMPTY
11033 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
11034 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11035 sethi ta, hi20(symbol) ; HI20/PTR
11036 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11037 jr ta ; PTR_RES/INSN16/EMPTY
11040 enum elf_nds32_reloc_type checked_types
[] =
11041 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
11042 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
11044 int reloc_off
= 0, cond_removed
= 0;
11046 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
11048 bfd_signed_vma foff
;
11049 uint32_t insn
, re_insn
= 0;
11050 uint16_t insn16
, re_insn16
= 0;
11051 unsigned long reloc
;
11053 irelend
= internal_relocs
+ sec
->reloc_count
;
11054 laddr
= irel
->r_offset
;
11056 /* Get the reloc for the address from which the register is
11057 being loaded. This reloc will tell us which function is
11058 actually being called. */
11059 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11060 R_NDS32_EMPTY
, irel
->r_addend
);
11062 if (em_irel
== irelend
)
11064 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP6",
11065 (uint64_t) irel
->r_offset
);
11069 /* Get the value of the symbol referred to by the reloc. */
11070 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
11073 || foff
< -CONSERVATIVE_24BIT_S1
11074 || foff
>= CONSERVATIVE_24BIT_S1
)
11077 insn
= bfd_getb32 (contents
+ laddr
);
11078 /* Check instruction size. */
11079 if (insn
& 0x80000000)
11082 insn16
= insn
>> 16;
11083 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11086 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11088 /* For simplicity of coding, we are going to modify the section
11089 contents, the section relocs, and the BFD symbol table. We
11090 must tell the rest of the code not to free up this
11091 information. It would be possible to instead create a table
11092 of changes which have to be made, as is done in coff-mips.c;
11093 that would be more work, but would require less memory when
11094 the linker is run. */
11096 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11097 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11099 /* beqs label ; 15_PCREL. */
11100 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11101 reloc
= R_NDS32_15_PCREL_RELA
;
11104 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11105 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11107 /* beqz label ; 17_PCREL. */
11108 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11109 reloc
= R_NDS32_17_PCREL_RELA
;
11112 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
11113 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
11115 /* Relax to one of the following 2 variations
11117 case 2-4; 1st insn convertible, 16-bit on.
11118 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
11119 j label ; 25_PCREL/INSN16
11122 case 4-4; 1st insn not convertible
11123 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
11124 j label ; 25_PCREL/INSN16
11127 /* Use j label as second instruction. */
11129 reloc
= R_NDS32_25_PCREL_RELA
;
11130 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
11135 /* Set all relocations. */
11136 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
11139 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11140 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
11141 cond_irel
->r_addend
= 1;
11143 /* Use INSN16 of first branch instruction to distinguish if keeping
11144 INSN16 of final instruction or not. */
11145 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11146 R_NDS32_INSN16
, irel
->r_offset
);
11147 if (insn_irel
== irelend
)
11149 /* Clean the final INSN16. */
11151 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11152 R_NDS32_INSN16
, em_irel
->r_offset
);
11153 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11157 if (cond_removed
== 1)
11161 /* Clear relocations. */
11162 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11164 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11167 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11168 checked_types
[i
], laddr
);
11169 if (cond_irel
!= irelend
)
11172 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11174 /* If the branch instruction is 2 byte, it cannot remove
11175 directly. Only convert it to nop16 and remove it after
11176 checking alignment issue. */
11177 insn16
= NDS32_NOP16
;
11178 bfd_putb16 (insn16
, contents
+ laddr
);
11179 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11182 cond_irel
->r_info
=
11183 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
11189 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11190 R_NDS32_LONGJUMP5
);
11196 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
11199 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11200 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11201 int *seq_len
, bfd_byte
*contents
,
11202 Elf_Internal_Sym
*isymbuf
,
11203 Elf_Internal_Shdr
*symtab_hdr
)
11205 /* There are 2 variations for LONGJUMP5
11206 case 2-4; 1st insn convertible, 16-bit on.
11207 movi55 ta, imm11 ; LONGJUMP7/INSN16
11208 beq rt, ta, label ; 15_PCREL
11210 case 4-4; 1st insn not convertible
11211 movi55 ta, imm11 ; LONGJUMP7/INSN16
11212 beq rt, ta, label ; 15_PCREL */
11215 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
11216 bfd_signed_vma foff
;
11217 uint32_t insn
, re_insn
= 0;
11221 irelend
= internal_relocs
+ sec
->reloc_count
;
11222 laddr
= irel
->r_offset
;
11224 /* Get the reloc for the address from which the register is
11225 being loaded. This reloc will tell us which function is
11226 actually being called. */
11229 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11230 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
11231 if (cond_irel
== irelend
)
11233 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP7",
11234 (uint64_t) irel
->r_offset
);
11238 /* Get the value of the symbol referred to by the reloc. */
11239 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11242 || foff
< -CONSERVATIVE_8BIT_S1
11243 || foff
>= CONSERVATIVE_8BIT_S1
)
11246 /* Get the first instruction for its size. */
11247 insn
= bfd_getb32 (contents
+ laddr
);
11248 if (insn
& 0x80000000)
11251 /* Get the immediate from movi55. */
11252 imm11
= N16_IMM5S (insn
>> 16);
11256 /* Get the immediate from movi. */
11257 imm11
= N32_IMM20S (insn
);
11260 /* Get the branch instruction. */
11261 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
11262 /* Convert instruction to BR3. */
11263 if ((insn
>> 14) & 0x1)
11264 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
11266 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
11268 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11270 /* Set all relocations. */
11271 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11272 R_NDS32_WORD_9_PCREL_RELA
);
11274 /* Clean relocations. */
11275 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11276 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11277 R_NDS32_INSN16
, irel
->r_offset
);
11278 if (insn_irel
!= irelend
)
11282 /* If the first insntruction is 16bit, convert it to nop16. */
11283 insn16
= NDS32_NOP16
;
11284 bfd_putb16 (insn16
, contents
+ laddr
);
11285 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11288 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11296 /* We figure out and reassign the best gp value in nds32_elf_final_sda_base
11297 for each relax round. But the gp may changed dramatically and then cause
11298 the truncated to fit errors for the the converted gp instructions.
11299 Therefore, we must reserve the minimum but safe enough size to prevent it. */
11302 nds32_elf_relax_guard (bfd_vma
*access_addr
, bfd_vma local_sda
, asection
*sec
,
11303 Elf_Internal_Rela
*irel
, bfd_boolean
*again
,
11305 struct elf_nds32_link_hash_table
*table
,
11306 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
11310 static bfd_boolean sec_pass
= FALSE
;
11311 static asection
*first_sec
= NULL
, *sym_sec
;
11312 /* Record the number of instructions which may be removed. */
11313 static int count
= 0, record_count
;
11314 Elf_Internal_Sym
*isym
;
11315 struct elf_link_hash_entry
*h
= NULL
;
11317 unsigned long r_symndx
;
11318 bfd
*abfd
= sec
->owner
;
11319 static bfd_vma record_sda
= 0;
11320 int sda_offset
= 0;
11322 /* Force doing relaxation when hyper-relax is high. */
11323 if (table
->hyper_relax
== 2)
11326 /* Do not relax the load/store patterns for the first
11332 else if (first_sec
== sec
)
11334 record_count
= count
;
11345 /* Generally, _SDA_BASE_ is fixed or smaller. But the large
11346 DATA_SEGMENT_ALIGN size in the linker script may make it
11347 get even bigger. */
11348 if (record_sda
== 0)
11349 record_sda
= local_sda
;
11350 else if (local_sda
> record_sda
)
11351 sda_offset
= local_sda
- record_sda
;
11353 /* Assume the instruction will be removed in the best case. */
11356 /* We record the offset to gp for each symbol, and then check
11357 if it is changed dramatically after relaxing.
11358 (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp
11359 (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */
11360 r_symndx
= ELF32_R_SYM (irel
->r_info
);
11361 if (r_symndx
>= symtab_hdr
->sh_info
)
11363 /* Global symbols. */
11364 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11365 h
= elf_sym_hashes (abfd
)[indx
];
11366 sym_sec
= h
->root
.u
.def
.section
;
11367 if (NDS32_GUARD_SEC_P (sym_sec
->flags
)
11368 || bfd_is_abs_section (sym_sec
))
11370 /* Forbid doing relaxation when hyper-relax is low. */
11371 if (table
->hyper_relax
== 0)
11374 offset_to_gp
= *access_addr
- local_sda
;
11375 if (elf32_nds32_hash_entry (h
)->offset_to_gp
== 0)
11376 elf32_nds32_hash_entry (h
)->offset_to_gp
= offset_to_gp
;
11377 else if (abs (elf32_nds32_hash_entry (h
)->offset_to_gp
)
11378 < abs (offset_to_gp
) - sda_offset
)
11380 /* This may cause the error, so we reserve the
11381 safe enough size for relaxing. */
11382 if (*access_addr
>= local_sda
)
11383 *access_addr
+= (record_count
* 4);
11385 *access_addr
-= (record_count
* 4);
11392 /* Local symbols. */
11393 if (!elf32_nds32_allocate_local_sym_info (abfd
))
11395 isym
= isymbuf
+ r_symndx
;
11397 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
11398 if (NDS32_GUARD_SEC_P (sym_sec
->flags
))
11400 /* Forbid doing relaxation when hyper-relax is low. */
11401 if (table
->hyper_relax
== 0)
11404 offset_to_gp
= *access_addr
- local_sda
;
11405 if (elf32_nds32_local_gp_offset (abfd
)[r_symndx
] == 0)
11406 elf32_nds32_local_gp_offset (abfd
)[r_symndx
] = offset_to_gp
;
11407 else if (abs (elf32_nds32_local_gp_offset (abfd
)[r_symndx
])
11408 < abs (offset_to_gp
) - sda_offset
)
11410 /* This may cause the error, so we reserve the
11411 safe enough size for relaxing. */
11412 if (*access_addr
>= local_sda
)
11413 *access_addr
+= (record_count
* 4);
11415 *access_addr
-= (record_count
* 4);
11424 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
11426 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
11429 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
11430 asection
*sec
, Elf_Internal_Rela
*irel
,
11431 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11432 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11433 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
,
11434 struct elf_nds32_link_hash_table
*table
)
11436 int eliminate_sethi
= 0, range_type
;
11438 bfd_vma local_sda
, laddr
;
11439 int seq_len
; /* Original length of instruction sequence. */
11441 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
11442 bfd_vma access_addr
= 0;
11443 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11444 struct elf_link_hash_entry
*h
= NULL
;
11446 enum elf_nds32_reloc_type checked_types
[] =
11447 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
11448 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
11449 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
11450 R_NDS32_TLS_LE_HI20
11453 irelend
= internal_relocs
+ sec
->reloc_count
;
11454 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
11455 laddr
= irel
->r_offset
;
11456 *insn_len
= seq_len
;
11458 /* Get the high part relocation. */
11459 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11461 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11462 checked_types
[i
], laddr
);
11463 if (hi_irelfn
!= irelend
)
11467 if (hi_irelfn
== irelend
)
11469 /* Not R_NDS32_HI20_RELA. */
11471 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LOADSTORE",
11472 (uint64_t) irel
->r_offset
);
11476 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
11477 nds32_elf_final_sda_base (sec
->output_section
->owner
,
11478 link_info
, &local_sda
, FALSE
);
11480 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
11482 case R_NDS32_HI20_RELA
:
11483 insn
= bfd_getb32 (contents
+ laddr
);
11485 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
11487 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
11489 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
11490 h
= elf_sym_hashes (abfd
)[indx
];
11494 if (range_type
== NDS32_LOADSTORE_IMM
11495 && access_addr
< CONSERVATIVE_20BIT
11496 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11498 eliminate_sethi
= 1;
11502 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11504 eliminate_sethi
= 1;
11507 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, hi_irelfn
,
11508 NULL
, FALSE
, table
, isymbuf
, symtab_hdr
))
11511 if (!load_store_relax
)
11514 /* Case for set gp register. */
11515 if (N32_RT5 (insn
) == REG_GP
)
11518 if (range_type
== NDS32_LOADSTORE_FLOAT_S
11519 || range_type
== NDS32_LOADSTORE_FLOAT_D
)
11521 range_l
= sdata_range
[0][0];
11522 range_h
= sdata_range
[0][1];
11526 range_l
= sdata_range
[1][0];
11527 range_h
= sdata_range
[1][1];
11535 /* Delete sethi instruction. */
11536 if (eliminate_sethi
== 1
11537 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11538 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11540 hi_irelfn
->r_info
=
11541 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
11543 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11551 /* Relax LO12 relocation for nds32_elf_relax_section. */
11554 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11555 asection
*sec
, Elf_Internal_Rela
*irel
,
11556 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
11557 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
11558 struct elf_nds32_link_hash_table
*table
)
11561 bfd_vma local_sda
, laddr
;
11562 unsigned long reloc
;
11563 bfd_vma access_addr
;
11564 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11565 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
11566 struct elf_link_hash_entry
*h
= NULL
;
11569 /* For SDA base relative relaxation. */
11570 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11571 &local_sda
, FALSE
);
11573 irelend
= internal_relocs
+ sec
->reloc_count
;
11574 laddr
= irel
->r_offset
;
11575 insn
= bfd_getb32 (contents
+ laddr
);
11577 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
11580 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11582 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
11584 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11585 h
= elf_sym_hashes (abfd
)[indx
];
11589 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
11590 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11592 reloc
= R_NDS32_20_RELA
;
11593 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11594 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11595 bfd_putb32 (insn
, contents
+ laddr
);
11599 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11601 /* Fall through. */
11603 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, irel
, NULL
,
11604 FALSE
, table
, isymbuf
, symtab_hdr
))
11607 range_l
= sdata_range
[1][0];
11608 range_h
= sdata_range
[1][1];
11609 switch (ELF32_R_TYPE (irel
->r_info
))
11611 case R_NDS32_LO12S0_RELA
:
11612 reloc
= R_NDS32_SDA19S0_RELA
;
11614 case R_NDS32_LO12S1_RELA
:
11615 reloc
= R_NDS32_SDA18S1_RELA
;
11617 case R_NDS32_LO12S2_RELA
:
11618 reloc
= R_NDS32_SDA17S2_RELA
;
11620 case R_NDS32_LO12S2_DP_RELA
:
11621 range_l
= sdata_range
[0][0];
11622 range_h
= sdata_range
[0][1];
11623 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11625 case R_NDS32_LO12S2_SP_RELA
:
11626 range_l
= sdata_range
[0][0];
11627 range_h
= sdata_range
[0][1];
11628 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11634 /* There are range_h and range_l because linker has to promise
11635 all sections move cross one page together. */
11636 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11637 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
)
11638 || (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0))
11640 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11642 /* Maybe we should add R_NDS32_INSN16 reloc type here
11643 or manually do some optimization. sethi can't be
11644 eliminated when updating $gp so the relative ori
11645 needs to be preserved. */
11648 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11651 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11652 bfd_putb32 (insn
, contents
+ laddr
);
11654 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11656 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11657 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11659 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11666 /* Relax PTR relocation for nds32_elf_relax_section. */
11669 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11670 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11671 int *seq_len
, bfd_byte
*contents
)
11673 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11675 irelend
= internal_relocs
+ sec
->reloc_count
;
11678 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11679 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11681 if (re_irel
== irelend
)
11683 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_PTR",
11684 (uint64_t) irel
->r_offset
);
11688 if (re_irel
->r_addend
!= 1)
11691 /* Pointed target is relaxed and no longer needs this void *,
11692 change the type to NONE. */
11693 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11695 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11696 not exist, it means only count 1 and remove it directly. */
11697 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11698 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11699 R_NDS32_PTR_COUNT
);
11700 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11702 if (count_irel
!= irelend
)
11704 if (--count_irel
->r_addend
> 0)
11708 if (ptr_irel
!= irelend
)
11711 /* If the PTR_COUNT is already 0, remove current instruction. */
11712 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11717 /* Relax LWC relocation for nds32_elf_relax_section. */
11720 nds32_elf_relax_flsi (struct bfd_link_info
*link_info
, bfd
*abfd
,
11721 asection
*sec
, Elf_Internal_Rela
*irel
,
11722 Elf_Internal_Rela
*internal_relocs
,
11723 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11724 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11727 sethi ra, hi20(symbol) ; HI20/LOADSTORE
11728 ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16
11729 flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16
11730 flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16
11734 bfd_vma local_sda
, laddr
;
11735 unsigned long reloc
;
11736 bfd_vma access_addr
, flsi_offset
;
11737 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11738 Elf_Internal_Rela
*irelend
, *re_irel
;
11739 unsigned int opcode
;
11741 irelend
= internal_relocs
+ sec
->reloc_count
;
11742 laddr
= irel
->r_offset
;
11743 insn
= bfd_getb32 (contents
+ laddr
);
11745 if ((insn
& 0x80000000) || !is_sda_access_insn (insn
))
11748 /* Can not do relaxation for bi format. */
11749 if ((insn
& 0x1000))
11752 /* Only deal with flsi, fssi, fldi, fsdi, so far. */
11753 opcode
= N32_OP6 (insn
);
11754 if ((opcode
== N32_OP6_LWC
) || (opcode
== N32_OP6_SWC
))
11755 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11756 else if ((opcode
== N32_OP6_LDC
) || (opcode
== N32_OP6_SDC
))
11757 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11761 re_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11762 R_NDS32_PTR_RESOLVED
);
11763 if (re_irel
== irelend
)
11765 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LSI",
11766 (uint64_t) irel
->r_offset
);
11770 /* For SDA base relative relaxation. */
11771 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11772 &local_sda
, FALSE
);
11773 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11774 flsi_offset
= (insn
& 0xfff) << 2;
11775 access_addr
+= flsi_offset
;
11776 range_l
= sdata_range
[0][0];
11777 range_h
= sdata_range
[0][1];
11779 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11780 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11782 /* Turn flsi instruction into sda access format. */
11783 insn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
11785 /* Add relocation type to flsi. */
11786 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11787 irel
->r_addend
+= flsi_offset
;
11788 bfd_putb32 (insn
, contents
+ re_irel
->r_offset
);
11790 re_irel
->r_addend
|= 1;
11796 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11797 Elf_Internal_Rela
*internal_relocs
,
11798 bfd_byte
*contents
,
11799 nds32_elf_blank_t
**relax_blank_list
,
11800 int optimize
, int opt_size
)
11802 /* This code block is used to adjust 4-byte alignment by relax a pair
11803 of instruction a time.
11805 It recognizes three types of relocations.
11806 1. R_NDS32_LABEL - a alignment.
11807 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11808 3. is_16bit_NOP () - remove a 16-bit instruction. */
11810 /* TODO: It seems currently implementation only support 4-byte alignment.
11811 We should handle any-alignment. */
11813 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11814 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11815 Elf_Internal_Rela rel_temp
;
11816 Elf_Internal_Rela
*irelend
;
11820 /* Checking for branch relaxation relies on the relocations to
11821 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11822 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11823 sizeof (Elf_Internal_Rela
), compar_reloc
);
11825 irelend
= internal_relocs
+ sec
->reloc_count
;
11827 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11828 /* FIXME: Can we generate the right order in assembler?
11829 So we don't have to swapping them here. */
11831 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11832 label_rel
< irelend
; label_rel
++)
11834 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11837 /* Find the first reloc has the same offset with label_rel. */
11838 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11841 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11843 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11845 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11848 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11849 && insn_rel
< label_rel
)
11851 /* Swap the two reloc if the R_NDS32_INSN16 is
11852 before R_NDS32_LABEL. */
11853 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11854 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11855 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11861 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11862 or higher, remove other R_NDS32_LABEL with lower alignment.
11863 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11864 then the R_NDS32_LABEL sequence is broke. */
11865 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11867 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11869 if (label_rel
== NULL
)
11871 if (tmp_rel
->r_addend
< 2)
11872 label_rel
= tmp_rel
;
11875 else if (tmp_rel
->r_addend
> 1)
11877 /* Remove all LABEL relocation from label_rel to tmp_rel
11878 including relocations with same offset as tmp_rel. */
11879 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
; tmp2_rel
++)
11881 if (tmp2_rel
->r_offset
== tmp_rel
->r_offset
)
11884 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11885 && tmp2_rel
->r_addend
< 2)
11887 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11893 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11895 /* A new INSN16 which can be converted, so clear label_rel. */
11896 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11898 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11905 /* Optimized for speed and nothing has not been relaxed.
11906 It's time to align labels.
11907 We may convert a 16-bit instruction right before a label to
11908 32-bit, in order to align the label if necessary
11909 all reloc entries has been sorted by r_offset. */
11910 for (irel
= internal_relocs
;
11911 irel
< irelend
&& irel
->r_offset
< sec
->size
; irel
++)
11913 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11914 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11917 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11919 /* A new INSN16 found, resize the old one. */
11920 if (is_convert_32_to_16
11921 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11922 || is_16bit_NOP (abfd
, sec
, irel
))
11926 /* Previous INSN16 reloc exists, reduce its
11928 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11931 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11932 internal_relocs
, irelend
, insn16
);
11934 if (!insert_nds32_elf_blank_recalc_total
11935 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11938 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11940 if (!insert_nds32_elf_blank_recalc_total
11941 (relax_blank_list
, insn_rel
->r_offset
, 2))
11945 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
11947 /* Save the new one for later use. */
11951 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11954 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
11956 /* Search for label. */
11957 int force_relax
= 0;
11959 /* Label on 16-bit instruction or optimization
11960 needless, just reset this reloc. */
11961 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
11962 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
11965 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11970 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
11971 irel
->r_offset
, 1);
11975 /* Check if there is case which can not be aligned. */
11976 if (irel
->r_addend
== 2 && address
& 0x2)
11981 /* Try to align this label. */
11983 if ((irel
->r_addend
& 0x1f) < 2)
11985 /* Check if there is a INSN16 at the same address.
11986 Label_rel always seats before insn_rel after
11989 /* Search for INSN16 at LABEL location. If INSN16 is at
11990 same location and this LABEL alignment is lower than 2,
11991 the INSN16 can be converted to 2-byte. */
11992 for (tmp_rel
= irel
;
11993 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
11996 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
11997 && (is_convert_32_to_16
11998 (abfd
, sec
, tmp_rel
, internal_relocs
,
12000 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
12008 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
12010 /* Label not aligned. */
12011 /* Previous reloc exists, reduce its size to 16-bit. */
12012 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
12013 internal_relocs
, irelend
, &insn16
))
12015 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
12016 internal_relocs
, irelend
, insn16
);
12018 if (!insert_nds32_elf_blank_recalc_total
12019 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12022 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12024 if (!insert_nds32_elf_blank_recalc_total
12025 (relax_blank_list
, insn_rel
->r_offset
, 2))
12030 /* INSN16 reloc is used. */
12036 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
12037 if (insn_rel
&& (address
& 0x2 || opt_size
))
12039 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
12042 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
12044 if (!insert_nds32_elf_blank_recalc_total
12045 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12047 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12050 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12052 if (!insert_nds32_elf_blank_recalc_total
12053 (relax_blank_list
, insn_rel
->r_offset
, 2))
12055 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12064 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
12065 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
12067 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12068 Elf_Internal_Shdr
*symtab_hdr
;
12069 Elf_Internal_Rela
*internal_relocs
;
12070 Elf_Internal_Rela
*irel
;
12071 Elf_Internal_Rela
*irelend
;
12072 Elf_Internal_Sym
*isymbuf
= NULL
;
12073 bfd_byte
*contents
= NULL
;
12074 bfd_boolean result
= TRUE
;
12080 /* Target dependnet option. */
12081 struct elf_nds32_link_hash_table
*table
;
12082 int load_store_relax
;
12084 relax_blank_list
= NULL
;
12088 /* Nothing to do for
12089 * relocatable link or
12090 * non-relocatable section or
12091 * non-code section or
12093 * no reloc entry. */
12094 if (bfd_link_relocatable (link_info
)
12095 || (sec
->flags
& SEC_RELOC
) == 0
12096 || (sec
->flags
& SEC_EXCLUDE
) != 0
12097 || (sec
->flags
& SEC_CODE
) == 0
12099 || sec
->reloc_count
== 0)
12102 /* 09.12.11 Workaround. */
12103 /* We have to adjust align for R_NDS32_LABEL if needed.
12104 The adjust approach only can fix 2-byte align once. */
12105 if (sec
->alignment_power
> 2)
12108 /* Do TLS model conversion once at first. */
12109 nds32_elf_unify_tls_model (abfd
, sec
, contents
, link_info
);
12111 /* The optimization type to do. */
12113 table
= nds32_elf_hash_table (link_info
);
12115 /* Save the first section for abs symbol relaxation.
12116 This is used for checking gp relaxation in the
12117 nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */
12118 nds32_elf_relax_guard (NULL
, 0, sec
, NULL
, again
, TRUE
,
12119 table
, NULL
, NULL
);
12121 /* The begining of general relaxation. */
12123 if (is_SDA_BASE_set
== 0)
12126 is_SDA_BASE_set
= 1;
12127 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12129 relax_range_measurement (abfd
, link_info
);
12132 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12133 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12134 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12135 TRUE
/* keep_memory */);
12136 if (internal_relocs
== NULL
)
12139 irelend
= internal_relocs
+ sec
->reloc_count
;
12140 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12141 irelend
, R_NDS32_RELAX_ENTRY
);
12143 if (irel
== irelend
)
12146 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12148 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12151 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12154 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12158 load_store_relax
= table
->load_store_relax
;
12160 /* Get symbol table and section content. */
12162 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12163 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12166 /* Do relax loop only when finalize is not done.
12167 Take care of relaxable relocs except INSN16. */
12168 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12170 int seq_len
; /* Original length of instruction sequence. */
12171 int insn_len
= 0; /* Final length of instruction sequence. */
12172 bfd_boolean removed
;
12175 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12176 && (irel
->r_addend
& 0x1f) >= 2)
12179 /* Relocation Types
12180 R_NDS32_LONGCALL1 53
12181 R_NDS32_LONGCALL2 54
12182 R_NDS32_LONGCALL3 55
12183 R_NDS32_LONGJUMP1 56
12184 R_NDS32_LONGJUMP2 57
12185 R_NDS32_LONGJUMP3 58
12186 R_NDS32_LOADSTORE 59 */
12187 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12188 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12189 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12191 /* Relocation Types
12192 R_NDS32_LONGCALL4 107
12193 R_NDS32_LONGCALL5 108
12194 R_NDS32_LONGCALL6 109
12195 R_NDS32_LONGJUMP4 110
12196 R_NDS32_LONGJUMP5 111
12197 R_NDS32_LONGJUMP6 112
12198 R_NDS32_LONGJUMP7 113 */
12199 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12200 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12203 /* Relocation Types
12204 R_NDS32_LO12S0_RELA 30
12205 R_NDS32_LO12S1_RELA 29
12206 R_NDS32_LO12S2_RELA 28
12207 R_NDS32_LO12S2_SP_RELA 71
12208 R_NDS32_LO12S2_DP_RELA 70
12209 R_NDS32_GOT_LO12 46
12210 R_NDS32_GOTOFF_LO12 50
12211 R_NDS32_PLTREL_LO12 65
12212 R_NDS32_PLT_GOTREL_LO12 67
12213 R_NDS32_17IFC_PCREL_RELA 96
12214 R_NDS32_GOT_SUFF 193
12215 R_NDS32_GOTOFF_SUFF 194
12216 R_NDS32_PLT_GOT_SUFF 195
12217 R_NDS32_MULCALL_SUFF 196
12219 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12220 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12221 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12222 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12223 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12224 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12225 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12226 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12227 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12228 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12229 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12230 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12231 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12232 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12233 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
12234 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LSI
)
12239 insn_len
= seq_len
;
12242 switch (ELF32_R_TYPE (irel
->r_info
))
12244 case R_NDS32_LONGCALL1
:
12245 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12246 &insn_len
, contents
, isymbuf
,
12249 case R_NDS32_LONGCALL2
:
12250 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12251 &insn_len
, contents
, isymbuf
,
12254 case R_NDS32_LONGCALL3
:
12255 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12256 &insn_len
, contents
, isymbuf
,
12259 case R_NDS32_LONGJUMP1
:
12260 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12261 &insn_len
, contents
, isymbuf
,
12264 case R_NDS32_LONGJUMP2
:
12265 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12266 &insn_len
, contents
, isymbuf
,
12269 case R_NDS32_LONGJUMP3
:
12270 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12271 &insn_len
, contents
, isymbuf
,
12274 case R_NDS32_LONGCALL4
:
12275 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12276 &insn_len
, contents
, isymbuf
,
12279 case R_NDS32_LONGCALL5
:
12280 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12281 &insn_len
, contents
, isymbuf
,
12284 case R_NDS32_LONGCALL6
:
12285 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12286 &insn_len
, contents
, isymbuf
,
12289 case R_NDS32_LONGJUMP4
:
12290 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12291 &insn_len
, contents
, isymbuf
,
12294 case R_NDS32_LONGJUMP5
:
12295 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12296 &insn_len
, &seq_len
, contents
,
12297 isymbuf
, symtab_hdr
);
12299 case R_NDS32_LONGJUMP6
:
12300 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12301 &insn_len
, &seq_len
, contents
,
12302 isymbuf
, symtab_hdr
);
12304 case R_NDS32_LONGJUMP7
:
12305 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12306 &insn_len
, &seq_len
, contents
,
12307 isymbuf
, symtab_hdr
);
12309 case R_NDS32_LOADSTORE
:
12310 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12311 internal_relocs
, &insn_len
,
12312 contents
, isymbuf
, symtab_hdr
,
12313 load_store_relax
, table
);
12315 case R_NDS32_LO12S0_RELA
:
12316 case R_NDS32_LO12S1_RELA
:
12317 case R_NDS32_LO12S2_RELA
:
12318 case R_NDS32_LO12S2_DP_RELA
:
12319 case R_NDS32_LO12S2_SP_RELA
:
12320 /* Relax for low part. */
12321 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12322 contents
, isymbuf
, symtab_hdr
, table
);
12324 /* It is impossible to delete blank, so just continue. */
12327 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12328 &insn_len
, &seq_len
, contents
);
12331 nds32_elf_relax_flsi (link_info
, abfd
, sec
, irel
, internal_relocs
,
12332 contents
, isymbuf
, symtab_hdr
, again
);
12334 case R_NDS32_GOT_LO12
:
12335 case R_NDS32_GOTOFF_LO12
:
12336 case R_NDS32_PLTREL_LO12
:
12337 case R_NDS32_PLT_GOTREL_LO12
:
12338 case R_NDS32_GOTPC_LO12
:
12339 case R_NDS32_TLS_LE_LO12
:
12340 case R_NDS32_TLS_LE_ADD
:
12341 case R_NDS32_TLS_LE_LS
:
12342 case R_NDS32_PLT_GOT_SUFF
:
12343 case R_NDS32_GOT_SUFF
:
12344 case R_NDS32_GOTOFF_SUFF
:
12350 if (removed
&& seq_len
- insn_len
> 0)
12352 if (!insert_nds32_elf_blank
12353 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12354 seq_len
- insn_len
))
12360 calc_nds32_blank_total (relax_blank_list
);
12362 if (table
->relax_fp_as_gp
)
12364 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12370 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12378 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12379 &relax_blank_list
, optimize
, opt_size
))
12383 /* It doesn't matter optimize_for_space_no_align anymore.
12384 If object file is assembled with flag '-Os',
12385 the we don't adjust jump-destination on 4-byte boundary. */
12387 if (relax_blank_list
)
12389 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12390 relax_blank_list
= NULL
;
12395 /* Closing the section, so we don't relax it anymore. */
12396 bfd_vma sec_size_align
;
12397 Elf_Internal_Rela
*tmp_rel
;
12399 /* Pad to alignment boundary. Only handle current section alignment. */
12400 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12401 & ((-1U) << sec
->alignment_power
);
12402 if ((sec_size_align
- sec
->size
) & 0x2)
12404 insn16
= NDS32_NOP16
;
12405 bfd_putb16 (insn16
, contents
+ sec
->size
);
12409 while (sec_size_align
!= sec
->size
)
12411 insn
= NDS32_NOP32
;
12412 bfd_putb32 (insn
, contents
+ sec
->size
);
12416 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12417 irelend
, R_NDS32_RELAX_ENTRY
);
12418 if (tmp_rel
!= irelend
)
12419 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12421 clean_nds32_elf_blank ();
12425 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
12426 free (internal_relocs
);
12428 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12431 if (symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12441 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12443 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12444 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12449 nds32_elf_section_flags (const Elf_Internal_Shdr
*hdr
)
12451 const char *name
= hdr
->bfd_section
->name
;
12453 if (strncmp (name
, ".sbss", 5) == 0
12454 || strncmp (name
, ".sdata", 6) == 0)
12455 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
12461 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12462 struct bfd_link_info
*info
,
12463 void *finfo ATTRIBUTE_UNUSED
,
12464 int (*func
) (void *, const char *,
12465 Elf_Internal_Sym
*,
12467 struct elf_link_hash_entry
*)
12470 FILE *sym_ld_script
= NULL
;
12471 struct elf_nds32_link_hash_table
*table
;
12473 table
= nds32_elf_hash_table (info
);
12474 sym_ld_script
= table
->sym_ld_script
;
12476 if (check_start_export_sym
)
12477 fprintf (sym_ld_script
, "}\n");
12482 static enum elf_reloc_type_class
12483 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12484 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12485 const Elf_Internal_Rela
*rela
)
12487 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12489 case R_NDS32_RELATIVE
:
12490 return reloc_class_relative
;
12491 case R_NDS32_JMP_SLOT
:
12492 return reloc_class_plt
;
12494 return reloc_class_copy
;
12496 return reloc_class_normal
;
12500 /* Put target dependent option into info hash table. */
12502 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12503 int relax_fp_as_gp
,
12504 int eliminate_gc_relocs
,
12505 FILE * sym_ld_script
,
12507 int tls_desc_trampoline
,
12508 int load_store_relax
)
12510 struct elf_nds32_link_hash_table
*table
;
12512 table
= nds32_elf_hash_table (link_info
);
12516 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12517 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12518 table
->sym_ld_script
= sym_ld_script
;
12519 table
->hyper_relax
= hyper_relax
;
12520 table
->tls_desc_trampoline
= tls_desc_trampoline
;
12521 table
->load_store_relax
= load_store_relax
;
12525 /* These functions and data-structures are used for fp-as-gp
12528 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12529 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12530 the read-only section and read-write section. */
12531 #define FAG_WINDOW (508 - 32)
12533 /* An nds32_fag represent a gp-relative access.
12534 We find best fp-base by using a sliding window
12535 to find a base address which can cover most gp-access. */
12538 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12539 bfd_vma addr
; /* The address of this fag. */
12540 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12541 It is used for applying FP7U2_FLAG. */
12542 int count
; /* How many times this address is referred.
12543 There should be exactly `count' relocations
12545 int relas_capcity
; /* The buffer size of relas.
12546 We use an array instead of linked-list,
12547 and realloc is used to adjust buffer size. */
12551 nds32_fag_init (struct nds32_fag
*head
)
12553 memset (head
, 0, sizeof (struct nds32_fag
));
12557 nds32_fag_verify (struct nds32_fag
*head
)
12559 struct nds32_fag
*iter
;
12560 struct nds32_fag
*prev
;
12566 if (prev
&& prev
->addr
>= iter
->addr
)
12567 puts ("Bug in fp-as-gp insertion.");
12573 /* Insert a fag in ascending order.
12574 If a fag of the same address already exists,
12575 they are chained by relas array. */
12578 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12579 Elf_Internal_Rela
* rel
)
12581 struct nds32_fag
*iter
;
12582 struct nds32_fag
*new_fag
;
12583 const int INIT_RELAS_CAP
= 4;
12586 iter
->next
&& iter
->next
->addr
<= addr
;
12588 /* Find somewhere to insert. */ ;
12590 /* `iter' will be equal to `head' if the list is empty. */
12591 if (iter
!= head
&& iter
->addr
== addr
)
12593 /* The address exists in the list.
12594 Insert `rel' into relocation list, relas. */
12596 /* Check whether relas is big enough. */
12597 if (iter
->count
>= iter
->relas_capcity
)
12599 iter
->relas_capcity
*= 2;
12600 iter
->relas
= bfd_realloc
12601 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12603 iter
->relas
[iter
->count
++] = rel
;
12607 /* This is a new address. Create a fag node for it. */
12608 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12609 memset (new_fag
, 0, sizeof (*new_fag
));
12610 new_fag
->addr
= addr
;
12611 new_fag
->count
= 1;
12612 new_fag
->next
= iter
->next
;
12613 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12614 new_fag
->relas
= (Elf_Internal_Rela
**)
12615 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12616 new_fag
->relas
[0] = rel
;
12617 iter
->next
= new_fag
;
12619 nds32_fag_verify (head
);
12623 nds32_fag_free_list (struct nds32_fag
*head
)
12625 struct nds32_fag
*iter
;
12630 struct nds32_fag
*tmp
= iter
;
12638 /* Find the best fp-base address.
12639 The relocation associated with that address is returned,
12640 so we can track the symbol instead of a fixed address.
12642 When relaxation, the address of an datum may change,
12643 because a text section is shrinked, so the data section
12644 moves forward. If the aligments of text and data section
12645 are different, their distance may change too.
12646 Therefore, tracking a fixed address is not appriate. */
12649 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12651 struct nds32_fag
*base
; /* First fag in the window. */
12652 struct nds32_fag
*last
; /* First fag outside the window. */
12653 int accu
= 0; /* Usage accumulation. */
12654 struct nds32_fag
*best
; /* Best fag. */
12655 int baccu
= 0; /* Best accumulation. */
12657 /* Use first fag for initial, and find the last fag in the window.
12659 In each iteration, we could simply subtract previous fag
12660 and accumulate following fags which are inside the window,
12661 untill we each the end. */
12663 if (head
->next
== NULL
)
12669 /* Initialize base. */
12673 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12675 accu
+= last
->count
;
12679 /* Record the best base in each iteration. */
12682 accu
-= base
->count
;
12684 /* Account fags in window. */
12685 for (/* Nothing. */;
12686 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12688 accu
+= last
->count
;
12690 /* A better fp-base? */
12703 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12704 so we can convert it fo fp-relative access later.
12705 `best_fag' is the best fp-base. Only those inside the window
12706 of best_fag is applied the flag. */
12709 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12710 asection
*sec
, struct nds32_fag
*best_fag
,
12711 Elf_Internal_Rela
*internal_relocs
,
12712 Elf_Internal_Rela
*irelend
)
12714 struct nds32_fag
*ifag
;
12715 bfd_vma best_fpbase
, gp
;
12718 output_bfd
= sec
->output_section
->owner
;
12719 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12720 best_fpbase
= best_fag
->addr
;
12722 if (best_fpbase
> gp
+ sdata_range
[1][1]
12723 || best_fpbase
< gp
- sdata_range
[1][0])
12726 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12727 so we know they can be converted to lwi37.fp. */
12728 for (ifag
= best_fag
;
12729 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12733 for (i
= 0; i
< ifag
->count
; i
++)
12735 Elf_Internal_Rela
*insn16_rel
;
12736 Elf_Internal_Rela
*fag_rel
;
12738 fag_rel
= ifag
->relas
[i
];
12740 /* Only if this is within the WINDOWS, FP7U2_FLAG
12743 insn16_rel
= find_relocs_at_address
12744 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12746 if (insn16_rel
!= irelend
)
12747 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12753 /* Reset INSN16 to clean fp as gp. */
12756 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12757 Elf_Internal_Rela
*internal_relocs
,
12758 Elf_Internal_Rela
*irelend
)
12760 struct nds32_fag
*ifag
;
12762 Elf_Internal_Rela
*insn16_rel
;
12763 Elf_Internal_Rela
*fag_rel
;
12765 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12767 for (i
= 0; i
< ifag
->count
; i
++)
12769 fag_rel
= ifag
->relas
[i
];
12771 /* Restore the INSN16 relocation. */
12772 insn16_rel
= find_relocs_at_address
12773 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12775 if (insn16_rel
!= irelend
)
12776 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12781 /* This is the main function of fp-as-gp optimization.
12782 It should be called by relax_section. */
12785 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12786 bfd
*abfd
, asection
*sec
,
12787 Elf_Internal_Rela
*internal_relocs
,
12788 Elf_Internal_Rela
*irelend
,
12789 Elf_Internal_Sym
*isymbuf
)
12791 Elf_Internal_Rela
*begin_rel
= NULL
;
12792 Elf_Internal_Rela
*irel
;
12793 struct nds32_fag fag_head
;
12794 Elf_Internal_Shdr
*symtab_hdr
;
12795 bfd_byte
*contents
;
12796 bfd_boolean ifc_inside
= FALSE
;
12798 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12800 /* Per-function fp-base selection.
12801 1. Create a list for all the gp-relative access.
12802 2. Base on those gp-relative address,
12803 find a fp-base which can cover most access.
12804 3. Use the fp-base for fp-as-gp relaxation.
12806 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12808 1. delete the `la $fp, _FP_BASE_' instruction and
12809 2. not convert lwi.gp to lwi37.fp.
12811 To delete the _FP_BASE_ instruction, we simply apply
12812 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12814 To suppress the conversion, we simply NOT to apply
12815 R_NDS32_INSN16_FP7U2_FLAG flag. */
12817 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12820 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12821 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12824 /* Check whether it is worth for fp-as-gp optimization,
12825 i.e., at least 3 gp-load.
12827 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12828 apply this optimization. */
12830 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12832 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12833 One we enter the begin of the region, we track all the LW/ST
12834 instructions, so when we leave the region, we try to find
12835 the best fp-base address for those LW/ST instructions. */
12837 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12838 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12840 /* Begin of the region. */
12842 /* xgettext:c-format */
12843 _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd
, sec
);
12846 nds32_fag_init (&fag_head
);
12847 ifc_inside
= FALSE
;
12849 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12850 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12853 struct nds32_fag
*best_fag
, *tmp_fag
;
12856 /* End of the region.
12857 Check whether it is worth to do fp-as-gp. */
12859 if (begin_rel
== NULL
)
12861 /* xgettext:c-format */
12862 _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"),
12867 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12869 /* Clean FP7U2_FLAG because they may set ever. */
12870 tmp_fag
= fag_head
.next
;
12871 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12873 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12874 if (accu
< FAG_THRESHOLD
12875 || !nds32_fag_mark_relax (link_info
, sec
, best_fag
,
12876 internal_relocs
, irelend
))
12878 /* Not worth to do fp-as-gp. */
12879 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12880 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12881 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12882 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12883 nds32_fag_free_list (&fag_head
);
12888 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12889 so we use it to record the distance to the reloction of best
12891 dist
= best_fag
->relas
[0] - begin_rel
;
12892 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12893 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12894 relocation. And get the base value when relocating. */
12895 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12896 begin_rel
->r_addend
|= dist
<< 16;
12898 nds32_fag_free_list (&fag_head
);
12902 if (begin_rel
== NULL
|| ifc_inside
)
12903 /* Skip if we are not in the region of fp-as-gp. */
12906 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12907 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12912 /* A gp-relative access is found. Insert it to the fag-list. */
12914 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12915 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12916 if (!N32_IS_RT3 (insn
))
12919 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12920 nds32_fag_insert (&fag_head
, addr
, irel
);
12922 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12926 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12927 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12929 /* Suppress fp as gp when encounter ifc. */
12937 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12940 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
12941 Elf_Internal_Rela
*internal_relocs
,
12942 Elf_Internal_Rela
*irelend
)
12944 Elf_Internal_Rela
*irel
;
12945 Elf_Internal_Shdr
*symtab_hdr
;
12946 bfd_byte
*contents
= NULL
;
12947 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12948 bfd_boolean result
= TRUE
;
12949 bfd_boolean unused_region
= FALSE
;
12952 NOTE: Disable fp-as-gp if we encounter ifcall relocations:
12953 R_NDS32_17IFC_PCREL_RELA
12954 R_NDS32_10IFCU_PCREL_RELA. */
12956 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12957 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
12959 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12961 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12962 we marked to in previous pass.
12963 DO NOT scan relocations again, since we've alreadly decided it
12964 and set the flag. */
12965 const char *syname
;
12969 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12970 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12971 unused_region
= TRUE
;
12972 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12973 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12974 unused_region
= FALSE
;
12976 /* We're not in the region. */
12977 if (!unused_region
)
12980 /* _FP_BASE_ must be a GLOBAL symbol. */
12981 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
12982 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
12985 /* The symbol name must be _FP_BASE_. */
12986 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
12987 if (strcmp (syname
, FP_BASE_NAME
) != 0)
12990 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
12992 /* addi.gp $fp, -256 */
12993 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12994 if (insn
!= INSN_ADDIGP_TO_FP
)
12997 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
12999 /* addi $fp, $gp, -256 */
13000 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13001 if (insn
!= INSN_ADDI_GP_TO_FP
)
13004 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
13006 /* movi $fp, FP_BASE */
13007 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13008 if (insn
!= INSN_MOVI_TO_FP
)
13014 /* We got here because a FP_BASE instruction is found. */
13015 if (!insert_nds32_elf_blank_recalc_total
13016 (&relax_blank_list
, irel
->r_offset
, 4))
13021 if (relax_blank_list
)
13023 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
13024 relax_blank_list
= NULL
;
13033 /* This is a version of bfd_generic_get_relocated_section_contents.
13034 We need this variety because relaxation will modify the dwarf
13035 infomation. When there is undefined symbol reference error mesage,
13036 linker need to dump line number where the symbol be used. However
13037 the address is be relaxed, it can not get the original dwarf contents.
13038 The variety only modify function call for reading in the section. */
13041 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
13042 struct bfd_link_info
*link_info
,
13043 struct bfd_link_order
*link_order
,
13045 bfd_boolean relocatable
,
13048 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
13049 asection
*input_section
= link_order
->u
.indirect
.section
;
13051 arelent
**reloc_vector
;
13054 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
13055 if (reloc_size
< 0)
13058 /* Read in the section. */
13059 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13062 if (reloc_size
== 0)
13065 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13066 if (reloc_vector
== NULL
)
13069 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13070 reloc_vector
, symbols
);
13071 if (reloc_count
< 0)
13074 if (reloc_count
> 0)
13077 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13079 char *error_message
= NULL
;
13081 bfd_reloc_status_type r
;
13083 symbol
= *(*parent
)->sym_ptr_ptr
;
13084 if (symbol
->section
&& discarded_section (symbol
->section
))
13087 static reloc_howto_type none_howto
13088 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13089 "unused", FALSE
, 0, 0, FALSE
);
13091 off
= (*parent
)->address
* OCTETS_PER_BYTE (input_bfd
,
13093 _bfd_clear_contents ((*parent
)->howto
, input_bfd
,
13094 input_section
, data
, off
);
13095 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13096 (*parent
)->addend
= 0;
13097 (*parent
)->howto
= &none_howto
;
13101 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13103 relocatable
? abfd
: NULL
,
13108 asection
*os
= input_section
->output_section
;
13110 /* A partial link, so keep the relocs. */
13111 os
->orelocation
[os
->reloc_count
] = *parent
;
13115 if (r
!= bfd_reloc_ok
)
13119 case bfd_reloc_undefined
:
13120 (*link_info
->callbacks
->undefined_symbol
)
13121 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13122 input_bfd
, input_section
, (*parent
)->address
, TRUE
);
13124 case bfd_reloc_dangerous
:
13125 BFD_ASSERT (error_message
!= NULL
);
13126 (*link_info
->callbacks
->reloc_dangerous
)
13127 (link_info
, error_message
,
13128 input_bfd
, input_section
, (*parent
)->address
);
13130 case bfd_reloc_overflow
:
13131 (*link_info
->callbacks
->reloc_overflow
)
13133 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13134 (*parent
)->howto
->name
, (*parent
)->addend
,
13135 input_bfd
, input_section
, (*parent
)->address
);
13137 case bfd_reloc_outofrange
:
13139 This error can result when processing some partially
13140 complete binaries. Do not abort, but issue an error
13141 message instead. */
13142 link_info
->callbacks
->einfo
13143 /* xgettext:c-format */
13144 (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"),
13145 abfd
, input_section
, * parent
);
13156 free (reloc_vector
);
13160 free (reloc_vector
);
13164 /* Check target symbol. */
13167 nds32_elf_is_target_special_symbol (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*sym
)
13169 if (!sym
|| !sym
->name
|| sym
->name
[0] != '$')
13174 /* nds32 find maybe function sym. Ignore target special symbol
13175 first, and then go the general function. */
13177 static bfd_size_type
13178 nds32_elf_maybe_function_sym (const asymbol
*sym
, asection
*sec
,
13181 if (nds32_elf_is_target_special_symbol (NULL
, (asymbol
*) sym
))
13184 return _bfd_elf_maybe_function_sym (sym
, sec
, code_off
);
13188 /* Do TLS model conversion. */
13190 typedef struct relax_group_list_t
13192 Elf_Internal_Rela
*relo
;
13193 struct relax_group_list_t
*next
;
13194 struct relax_group_list_t
*next_sibling
;
13196 } relax_group_list_t
;
13199 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
);
13202 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
);
13205 dump_chain (relax_group_list_t
*pHead
);
13208 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
)
13210 relax_group_list_t
*pNext
= pHead
;
13213 while (pNext
->next
)
13215 if (pNext
->next
->id
> (int) pElem
->r_addend
)
13218 pNext
= pNext
->next
;
13222 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13226 relax_group_list_t
*tmp
= pNext
->next
;
13227 pNext
->next
= pNew
;
13229 pNew
->id
= pElem
->r_addend
;
13230 pNew
->relo
= pElem
;
13232 pNew
->next_sibling
= NULL
;
13238 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
)
13240 relax_group_list_t
*pNext
= pNode
;
13243 while (pNext
->next_sibling
)
13245 pNext
= pNext
->next_sibling
;
13249 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13253 relax_group_list_t
*tmp
= pNext
->next_sibling
;
13254 pNext
->next_sibling
= pNew
;
13257 pNew
->relo
= pElem
;
13259 pNew
->next_sibling
= tmp
;
13265 dump_chain (relax_group_list_t
*pHead
)
13267 relax_group_list_t
*pNext
= pHead
->next
;
13270 printf("group %d @ 0x%08x", pNext
->id
, (unsigned)pNext
->relo
->r_offset
);
13271 relax_group_list_t
*pNextSib
= pNext
->next_sibling
;
13274 printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib
->relo
->r_info
));
13275 pNextSib
= pNextSib
->next_sibling
;
13277 pNext
= pNext
->next
;
13282 /* Check R_NDS32_RELAX_GROUP of each section.
13283 There might be multiple sections in one object file. */
13286 elf32_nds32_check_relax_group (bfd
*abfd
, asection
*asec
)
13288 elf32_nds32_relax_group_t
*relax_group_ptr
=
13289 elf32_nds32_relax_group_ptr (abfd
);
13291 int min_id
= relax_group_ptr
->min_id
;
13292 int max_id
= relax_group_ptr
->max_id
;
13294 Elf_Internal_Rela
*rel
;
13295 Elf_Internal_Rela
*relend
;
13296 Elf_Internal_Rela
*relocs
;
13297 enum elf_nds32_reloc_type rtype
;
13301 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13302 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13303 TRUE
/* keep_memory */);
13304 if (relocs
== NULL
)
13307 /* Check R_NDS32_RELAX_GROUP. */
13308 relend
= relocs
+ asec
->reloc_count
;
13309 for (rel
= relocs
; rel
< relend
; rel
++)
13312 rtype
= ELF32_R_TYPE (rel
->r_info
);
13313 if (rtype
!= R_NDS32_RELAX_GROUP
)
13316 id
= rel
->r_addend
;
13319 else if (id
> max_id
)
13325 if (elf_section_data (asec
)->relocs
!= relocs
)
13328 if ((min_id
!= relax_group_ptr
->min_id
)
13329 || (max_id
!= relax_group_ptr
->max_id
))
13331 relax_group_ptr
->count
= max_id
- min_id
+ 1;
13332 BFD_ASSERT(min_id
<= relax_group_ptr
->min_id
);
13333 relax_group_ptr
->min_id
= min_id
;
13334 BFD_ASSERT(max_id
>= relax_group_ptr
->max_id
);
13335 relax_group_ptr
->max_id
= max_id
;
13338 return relax_group_ptr
->count
;
13341 /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */
13342 static struct section_id_list_t
*relax_group_section_id_list
= NULL
;
13344 struct section_id_list_t
*
13345 elf32_nds32_lookup_section_id (int id
, struct section_id_list_t
**lst_ptr
)
13347 struct section_id_list_t
*result
= NULL
;
13348 struct section_id_list_t
*lst
= *lst_ptr
;
13352 result
= (struct section_id_list_t
*) calloc
13353 (1, sizeof (struct section_id_list_t
));
13354 BFD_ASSERT (result
); /* Feed me. */
13360 struct section_id_list_t
*cur
= lst
;
13361 struct section_id_list_t
*prv
= NULL
;
13362 struct section_id_list_t
*sec
= NULL
;
13375 cur
= NULL
; /* To insert after prv. */
13376 sec
= cur
; /* In case prv == NULL. */
13384 /* Insert after prv. */
13385 result
= (struct section_id_list_t
*) calloc
13386 (1, sizeof (struct section_id_list_t
));
13387 BFD_ASSERT (result
); /* Feed me. */
13391 result
->next
= prv
->next
;
13392 prv
->next
= result
;
13397 result
->next
= sec
;
13406 elf32_nds32_unify_relax_group (bfd
*abfd
, asection
*asec
)
13408 static int next_relax_group_bias
= 0;
13410 elf32_nds32_relax_group_t
*relax_group_ptr
=
13411 elf32_nds32_relax_group_ptr (abfd
);
13413 bfd_boolean result
= TRUE
;
13414 Elf_Internal_Rela
*rel
;
13415 Elf_Internal_Rela
*relend
;
13416 Elf_Internal_Rela
*relocs
= NULL
;
13417 enum elf_nds32_reloc_type rtype
;
13418 struct section_id_list_t
*node
= NULL
;
13423 if (0 == relax_group_ptr
->count
)
13426 /* Check if this section has been handled. */
13427 node
= elf32_nds32_lookup_section_id (asec
->id
, &relax_group_section_id_list
);
13429 break; /* Hit, the section id has handled. */
13431 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13432 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13433 TRUE
/* keep_memory */);
13434 if (relocs
== NULL
)
13436 BFD_ASSERT (0); /* feed me */
13440 /* Allocate group id bias for this bfd! */
13441 if (0 == relax_group_ptr
->init
)
13443 relax_group_ptr
->bias
= next_relax_group_bias
;
13444 next_relax_group_bias
+= relax_group_ptr
->count
;
13445 relax_group_ptr
->init
= 1;
13448 /* Reorder relax group groups. */
13449 relend
= relocs
+ asec
->reloc_count
;
13450 for (rel
= relocs
; rel
< relend
; rel
++)
13452 rtype
= ELF32_R_TYPE(rel
->r_info
);
13453 if (rtype
!= R_NDS32_RELAX_GROUP
)
13457 rel
->r_addend
+= relax_group_ptr
->bias
;
13458 /* Debugging count. */
13464 if (elf_section_data (asec
)->relocs
!= relocs
)
13471 nds32_elf_unify_tls_model (bfd
*inbfd
, asection
*insec
, bfd_byte
*incontents
,
13472 struct bfd_link_info
*lnkinfo
)
13474 bfd_boolean result
= TRUE
;
13475 Elf_Internal_Rela
*irel
;
13476 Elf_Internal_Rela
*irelend
;
13477 Elf_Internal_Rela
*internal_relocs
;
13478 unsigned long r_symndx
;
13479 enum elf_nds32_reloc_type r_type
;
13481 Elf_Internal_Sym
*local_syms
= NULL
;
13482 bfd_byte
*contents
= NULL
;
13484 relax_group_list_t chain
= { .id
= -1, .next
= NULL
, .next_sibling
= NULL
};
13486 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (inbfd
)->symtab_hdr
;
13487 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
13488 sym_hashes
= elf_sym_hashes (inbfd
);
13490 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
13491 if (!elf_bad_symtab (inbfd
))
13492 sym_hashes_end
-= symtab_hdr
->sh_info
;
13494 /* Reorder RELAX_GROUP when command line option '-r' is applied. */
13495 if (bfd_link_relocatable (lnkinfo
))
13497 elf32_nds32_unify_relax_group (inbfd
, insec
);
13501 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13502 internal_relocs
= _bfd_elf_link_read_relocs (inbfd
, insec
, NULL
, NULL
,
13503 TRUE
/* keep_memory */);
13504 if (internal_relocs
== NULL
)
13507 irelend
= internal_relocs
+ insec
->reloc_count
;
13508 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
13509 irelend
, R_NDS32_RELAX_ENTRY
);
13510 if (irel
== irelend
)
13513 /* Chain/remove groups. */
13514 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13516 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13517 r_type
= ELF32_R_TYPE (irel
->r_info
);
13518 if (r_type
!= R_NDS32_RELAX_GROUP
)
13522 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_NONE
);
13523 /* Chain it now. */
13524 if (!list_insert (&chain
, irel
))
13528 /* Collect group relocations. */
13529 /* Presume relocations are sorted. */
13530 relax_group_list_t
*pNext
= chain
.next
;
13533 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13535 if (irel
->r_offset
== pNext
->relo
->r_offset
)
13537 /* Ignore Non-TLS relocation types. */
13538 r_type
= ELF32_R_TYPE (irel
->r_info
);
13539 if ((R_NDS32_TLS_LE_HI20
> r_type
)
13540 || (R_NDS32_RELAX_ENTRY
== r_type
))
13543 if (!list_insert_sibling (pNext
, irel
))
13546 else if (irel
->r_offset
> pNext
->relo
->r_offset
)
13548 pNext
= pNext
->next
;
13552 bfd_vma current_offset
= pNext
->relo
->r_offset
;
13553 if (irel
->r_offset
> current_offset
)
13554 irel
= internal_relocs
; /* restart from head */
13556 --irel
; /* Check current irel again. */
13561 /* This shouldn't be reached. */
13565 pNext
= pNext
->next
;
13568 #ifdef DUBUG_VERBOSE
13569 dump_chain(&chain
);
13572 /* Get symbol table and section content. */
13574 contents
= incontents
;
13575 else if (!nds32_get_section_contents (inbfd
, insec
, &contents
, TRUE
)
13576 || !nds32_get_local_syms (inbfd
, insec
, &local_syms
))
13579 char *local_got_tls_type
= elf32_nds32_local_got_tls_type (inbfd
);
13581 /* Convert TLS model each group if necessary. */
13582 pNext
= chain
.next
;
13584 int cur_grp_id
= -1;
13587 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
13589 tls_type
= org_tls_type
= eff_tls_type
= 0;
13593 relax_group_list_t
*pNextSig
= pNext
->next_sibling
;
13596 struct elf_link_hash_entry
*h
= NULL
;
13598 irel
= pNextSig
->relo
;
13599 r_symndx
= ELF32_R_SYM(irel
->r_info
);
13600 r_type
= ELF32_R_TYPE(irel
->r_info
);
13602 if (pNext
->id
!= cur_grp_id
)
13604 cur_grp_id
= pNext
->id
;
13605 org_tls_type
= get_tls_type (r_type
, NULL
);
13606 if (r_symndx
>= symtab_hdr
->sh_info
)
13608 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13609 while (h
->root
.type
== bfd_link_hash_indirect
13610 || h
->root
.type
== bfd_link_hash_warning
)
13611 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
13612 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
13616 tls_type
= local_got_tls_type
13617 ? local_got_tls_type
[r_symndx
]
13621 eff_tls_type
= 1 << (fls (tls_type
) - 1);
13622 sethi_rt
= N32_RT5(bfd_getb32 (contents
+ irel
->r_offset
));
13625 if (eff_tls_type
!= org_tls_type
)
13627 switch (org_tls_type
)
13629 /* DESC to IEGP/IE/LE. */
13631 switch (eff_tls_type
)
13636 case R_NDS32_TLS_DESC_HI20
:
13637 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13638 R_NDS32_TLS_IE_HI20
);
13640 case R_NDS32_TLS_DESC_LO12
:
13641 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13642 R_NDS32_TLS_IE_LO12
);
13644 case R_NDS32_TLS_DESC_ADD
:
13646 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13647 add_rt
= N32_RT5 (insn
);
13648 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13649 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13651 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13654 case R_NDS32_TLS_DESC_FUNC
:
13655 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13656 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13657 R_NDS32_RELAX_REMOVE
);
13659 case R_NDS32_TLS_DESC_CALL
:
13661 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13663 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13665 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13668 case R_NDS32_LOADSTORE
:
13670 case R_NDS32_PTR_RESOLVED
:
13672 case R_NDS32_LABEL
:
13682 case R_NDS32_TLS_DESC_HI20
:
13683 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13684 R_NDS32_TLS_IEGP_HI20
);
13686 case R_NDS32_TLS_DESC_LO12
:
13687 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13688 R_NDS32_TLS_IEGP_LO12
);
13690 case R_NDS32_TLS_DESC_ADD
:
13692 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13693 add_rt
= N32_RT5 (insn
);
13694 insn
= N32_MEM(LW
, add_rt
, sethi_rt
, REG_GP
, 0);
13695 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13697 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13700 case R_NDS32_TLS_DESC_FUNC
:
13701 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13702 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13703 R_NDS32_RELAX_REMOVE
);
13705 case R_NDS32_TLS_DESC_CALL
:
13707 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13709 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13711 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13714 case R_NDS32_LOADSTORE
:
13716 case R_NDS32_PTR_RESOLVED
:
13718 case R_NDS32_LABEL
:
13728 case R_NDS32_TLS_DESC_HI20
:
13729 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13731 case R_NDS32_TLS_DESC_LO12
:
13732 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13734 case R_NDS32_TLS_DESC_ADD
:
13736 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13738 add_rt
= N32_RT5 (insn
);
13739 insn
= N32_ALU1 (ADD
, REG_R0
, sethi_rt
, REG_TP
);
13740 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13742 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_ADD
);
13745 case R_NDS32_TLS_DESC_FUNC
:
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_TLS_DESC_CALL
:
13750 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13751 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13753 case R_NDS32_LOADSTORE
:
13755 case R_NDS32_PTR_RESOLVED
:
13757 case R_NDS32_LABEL
:
13768 /* IEGP to IE/LE. */
13770 switch (eff_tls_type
)
13775 case R_NDS32_TLS_IEGP_HI20
:
13776 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13777 R_NDS32_TLS_IE_HI20
);
13779 case R_NDS32_TLS_IEGP_LO12
:
13780 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13781 R_NDS32_TLS_IE_LO12
);
13783 case R_NDS32_PTR_RESOLVED
:
13785 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13787 add_rt
= N32_RT5 (insn
);
13788 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13789 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13792 case R_NDS32_TLS_IEGP_LW
:
13794 case R_NDS32_LOADSTORE
:
13797 case R_NDS32_LABEL
:
13807 case R_NDS32_TLS_IEGP_HI20
:
13808 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13810 case R_NDS32_TLS_IEGP_LO12
:
13811 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13813 case R_NDS32_TLS_IEGP_LW
:
13814 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13815 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13817 case R_NDS32_LOADSTORE
:
13820 case R_NDS32_LABEL
:
13821 case R_NDS32_PTR_RESOLVED
:
13834 switch (eff_tls_type
)
13839 case R_NDS32_TLS_IE_HI20
:
13840 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13842 case R_NDS32_TLS_IE_LO12S2
:
13844 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13846 add_rt
= N32_RT5 (insn
);
13847 insn
= N32_TYPE2 (ORI
, add_rt
, sethi_rt
, 0);
13848 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13850 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13853 case R_NDS32_LOADSTORE
:
13856 case R_NDS32_LABEL
:
13871 pNextSig
= pNextSig
->next_sibling
;
13875 pNext
= pNext
->next
;
13879 if (pNext
->id
!= cur_grp_id
)
13881 pNext
= pNext
->next
;
13890 if (elf_section_data (insec
)->relocs
!= internal_relocs
)
13891 free (internal_relocs
);
13893 if (elf_section_data (insec
)->this_hdr
.contents
!= contents
)
13896 if (symtab_hdr
->contents
!= (bfd_byte
*) local_syms
)
13901 pNext
= chain
.next
;
13902 relax_group_list_t
*pDel
;
13906 pNext
= pNext
->next
;
13918 /* End TLS model conversion. */
13920 #define ELF_ARCH bfd_arch_nds32
13921 #define ELF_MACHINE_CODE EM_NDS32
13922 #define ELF_MAXPAGESIZE 0x1000
13923 #define ELF_TARGET_ID NDS32_ELF_DATA
13925 #define TARGET_BIG_SYM nds32_elf32_be_vec
13926 #define TARGET_BIG_NAME "elf32-nds32be"
13927 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
13928 #define TARGET_LITTLE_NAME "elf32-nds32le"
13930 #define elf_info_to_howto nds32_info_to_howto
13931 #define elf_info_to_howto_rel nds32_info_to_howto_rel
13933 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
13934 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
13935 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
13936 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
13937 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
13939 #define bfd_elf32_mkobject nds32_elf_mkobject
13940 #define elf_backend_action_discarded nds32_elf_action_discarded
13941 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
13942 #define elf_backend_check_relocs nds32_elf_check_relocs
13943 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
13944 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
13945 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
13946 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
13947 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
13948 #define elf_backend_relocate_section nds32_elf_relocate_section
13949 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
13950 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
13951 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
13952 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
13953 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
13954 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
13955 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
13956 #define elf_backend_object_p nds32_elf_object_p
13957 #define elf_backend_final_write_processing nds32_elf_final_write_processing
13958 #define elf_backend_special_sections nds32_elf_special_sections
13959 #define elf_backend_section_flags nds32_elf_section_flags
13960 #define bfd_elf32_bfd_get_relocated_section_contents \
13961 nds32_elf_get_relocated_section_contents
13962 #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol
13963 #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym
13965 #define elf_backend_can_gc_sections 1
13966 #define elf_backend_can_refcount 1
13967 #define elf_backend_want_got_plt 1
13968 #define elf_backend_plt_readonly 1
13969 #define elf_backend_want_plt_sym 0
13970 #define elf_backend_got_header_size 12
13971 #define elf_backend_may_use_rel_p 1
13972 #define elf_backend_default_use_rela_p 1
13973 #define elf_backend_may_use_rela_p 1
13974 #define elf_backend_dtrel_excludes_plt 0
13976 #include "elf32-target.h"
13978 #undef ELF_MAXPAGESIZE
13979 #define ELF_MAXPAGESIZE 0x2000
13981 #undef TARGET_BIG_SYM
13982 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
13983 #undef TARGET_BIG_NAME
13984 #define TARGET_BIG_NAME "elf32-nds32be-linux"
13985 #undef TARGET_LITTLE_SYM
13986 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
13987 #undef TARGET_LITTLE_NAME
13988 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
13990 #define elf32_bed elf32_nds32_lin_bed
13992 #include "elf32-target.h"