1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2020 Free Software Foundation, Inc.
3 Contributed by Andes Technology Corporation.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
28 #include "libiberty.h"
29 #include "elf/nds32.h"
30 #include "opcode/nds32.h"
31 #include "elf32-nds32.h"
32 #include "opcode/cgen.h"
33 #include "../opcodes/nds32-opc.h"
35 /* All users of this file have bfd_octets_per_byte (abfd, sec) == 1. */
36 #define OCTETS_PER_BYTE(ABFD, SEC) 1
38 /* Relocation HOWTO functions. */
39 static bfd_reloc_status_type nds32_elf_ignore_reloc
40 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
41 static bfd_reloc_status_type nds32_elf_9_pcrel_reloc
42 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
43 static bfd_reloc_status_type nds32_elf_hi20_reloc
44 (bfd
*, arelent
*, asymbol
*, void *,
45 asection
*, bfd
*, char **);
46 static bfd_reloc_status_type nds32_elf_lo12_reloc
47 (bfd
*, arelent
*, asymbol
*, void *,
48 asection
*, bfd
*, char **);
49 static bfd_reloc_status_type nds32_elf_generic_reloc
50 (bfd
*, arelent
*, asymbol
*, void *,
51 asection
*, bfd
*, char **);
52 static bfd_reloc_status_type nds32_elf_sda15_reloc
53 (bfd
*, arelent
*, asymbol
*, void *,
54 asection
*, bfd
*, char **);
56 /* Helper functions for HOWTO. */
57 static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc
58 (bfd
*, reloc_howto_type
*, asection
*, bfd_byte
*, bfd_vma
,
59 asection
*, bfd_vma
, bfd_vma
);
61 /* Nds32 helper functions. */
62 static bfd_vma calculate_memory_address
63 (bfd
*, Elf_Internal_Rela
*, Elf_Internal_Sym
*, Elf_Internal_Shdr
*);
64 static int nds32_get_section_contents (bfd
*, asection
*,
65 bfd_byte
**, bfd_boolean
);
66 static int nds32_get_local_syms (bfd
*, asection
*ATTRIBUTE_UNUSED
,
68 static bfd_boolean nds32_relax_fp_as_gp
69 (struct bfd_link_info
*link_info
, bfd
*abfd
, asection
*sec
,
70 Elf_Internal_Rela
*internal_relocs
, Elf_Internal_Rela
*irelend
,
71 Elf_Internal_Sym
*isymbuf
);
72 static bfd_boolean nds32_fag_remove_unused_fpbase
73 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*internal_relocs
,
74 Elf_Internal_Rela
*irelend
);
78 MACH_V1
= bfd_mach_n1h
,
79 MACH_V2
= bfd_mach_n1h_v2
,
80 MACH_V3
= bfd_mach_n1h_v3
,
81 MACH_V3M
= bfd_mach_n1h_v3m
84 #define MIN(a, b) ((a) > (b) ? (b) : (a))
85 #define MAX(a, b) ((a) > (b) ? (a) : (b))
87 /* The name of the dynamic interpreter. This is put in the .interp
89 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
91 #define NDS32_GUARD_SEC_P(flags) ((flags) & SEC_ALLOC \
92 && (flags) & SEC_LOAD \
93 && (flags) & SEC_READONLY)
95 /* The nop opcode we use. */
96 #define NDS32_NOP32 0x40000009
97 #define NDS32_NOP16 0x9200
99 /* The size in bytes of an entry in the procedure linkage table. */
100 #define PLT_ENTRY_SIZE 24
101 #define PLT_HEADER_SIZE 24
103 /* The first entry in a procedure linkage table are reserved,
104 and the initial contents are unimportant (we zero them out).
105 Subsequent entries look like this. */
106 #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */
107 #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */
108 #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */
109 #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */
110 #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */
112 /* $ta is change to $r15 (from $r25). */
113 #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */
114 #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */
115 #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */
116 #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */
117 #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */
118 #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */
120 #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */
121 #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */
122 #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */
123 #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */
124 #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */
126 #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */
127 #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */
128 #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */
129 #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */
130 #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */
131 #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */
133 /* These are macros used to get the relocation accurate value. */
134 #define ACCURATE_8BIT_S1 (0x100)
135 #define ACCURATE_U9BIT_S1 (0x400)
136 #define ACCURATE_12BIT_S1 (0x2000)
137 #define ACCURATE_14BIT_S1 (0x4000)
138 #define ACCURATE_19BIT (0x40000)
140 /* These are macros used to get the relocation conservative value. */
141 #define CONSERVATIVE_8BIT_S1 (0x100 - 4)
142 #define CONSERVATIVE_14BIT_S1 (0x4000 - 4)
143 #define CONSERVATIVE_16BIT_S1 (0x10000 - 4)
144 #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4)
145 /* These must be more conservative because the address may be in
146 different segment. */
147 #define CONSERVATIVE_15BIT (0x4000 - 0x1000)
148 #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000)
149 #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000)
150 #define CONSERVATIVE_19BIT (0x40000 - 0x1000)
151 #define CONSERVATIVE_20BIT (0x80000 - 0x1000)
153 /* Size of small data/bss sections, used to calculate SDA_BASE. */
154 static long got_size
= 0;
155 static int is_SDA_BASE_set
= 0;
157 /* Convert ELF-VER in eflags to string for debugging purpose. */
158 static const char *const nds32_elfver_strtab
[] =
165 /* The nds32 linker needs to keep track of the number of relocs that it
166 decides to copy in check_relocs for each symbol. This is so that
167 it can discard PC relative relocs if it doesn't need them when
168 linking with -Bsymbolic. We store the information in a field
169 extending the regular ELF linker hash table. */
171 /* This structure keeps track of the number of PC relative relocs we
172 have copied for a given symbol. */
174 struct elf_nds32_pcrel_relocs_copied
177 struct elf_nds32_pcrel_relocs_copied
*next
;
178 /* A section in dynobj. */
180 /* Number of relocs copied in this section. */
184 enum elf_nds32_tls_type
187 GOT_NORMAL
= (1 << 0),
188 GOT_TLS_LE
= (1 << 1),
189 GOT_TLS_IE
= (1 << 2),
190 GOT_TLS_IEGP
= (1 << 3),
191 GOT_TLS_LD
= (1 << 4),
192 GOT_TLS_GD
= (1 << 5),
193 GOT_TLS_DESC
= (1 << 6),
196 /* Nds32 ELF linker hash entry. */
198 struct elf_nds32_link_hash_entry
200 struct elf_link_hash_entry root
;
202 /* For checking relocation type. */
203 enum elf_nds32_tls_type tls_type
;
208 /* Get the nds32 ELF linker hash table from a link_info structure. */
210 #define FP_BASE_NAME "_FP_BASE_"
211 static int check_start_export_sym
= 0;
213 /* The offset for executable tls relaxation. */
214 #define TP_OFFSET 0x0
223 } elf32_nds32_relax_group_t
;
225 struct elf_nds32_obj_tdata
227 struct elf_obj_tdata root
;
229 /* tls_type for each local got entry. */
230 char *local_got_tls_type
;
232 /* GOTPLT entries for TLS descriptors. */
233 bfd_vma
*local_tlsdesc_gotent
;
235 /* for R_NDS32_RELAX_GROUP handling. */
236 elf32_nds32_relax_group_t relax_group
;
238 unsigned int hdr_size
;
242 #define elf_nds32_tdata(bfd) \
243 ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any)
245 #define elf32_nds32_local_got_tls_type(bfd) \
246 (elf_nds32_tdata (bfd)->local_got_tls_type)
248 #define elf32_nds32_local_gp_offset(bfd) \
249 (elf_nds32_tdata (bfd)->offset_to_gp)
251 #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent))
253 #define elf32_nds32_relax_group_ptr(bfd) \
254 &(elf_nds32_tdata (bfd)->relax_group)
257 nds32_elf_mkobject (bfd
*abfd
)
259 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_nds32_obj_tdata
),
263 /* Relocations used for relocation. */
264 /* Define HOWTO2 (for relocation) and HOWTO3 (for relaxation) to
265 initialize array nds32_elf_howto_table in any order. The benefit
266 is that we can add any new relocations with any numbers and don't
267 need to fill the gap by lots of EMPTY_HOWTO. */
268 #define HOWTO2(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
269 [C] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC)
271 static reloc_howto_type nds32_elf_howto_table
[] =
273 /* This reloc does nothing. */
274 HOWTO2 (R_NDS32_NONE
, /* type */
276 2, /* size (0 = byte, 1 = short, 2 = long) */
278 FALSE
, /* pc_relative */
280 complain_overflow_bitfield
,/* complain_on_overflow */
281 bfd_elf_generic_reloc
, /* special_function */
282 "R_NDS32_NONE", /* name */
283 FALSE
, /* partial_inplace */
286 FALSE
), /* pcrel_offset */
288 /* A 16 bit absolute relocation. */
289 HOWTO2 (R_NDS32_16
, /* type */
291 1, /* size (0 = byte, 1 = short, 2 = long) */
293 FALSE
, /* pc_relative */
295 complain_overflow_bitfield
,/* complain_on_overflow */
296 nds32_elf_generic_reloc
,/* special_function */
297 "R_NDS32_16", /* name */
298 FALSE
, /* partial_inplace */
299 0xffff, /* src_mask */
300 0xffff, /* dst_mask */
301 FALSE
), /* pcrel_offset */
303 /* A 32 bit absolute relocation. */
304 HOWTO2 (R_NDS32_32
, /* type */
306 2, /* size (0 = byte, 1 = short, 2 = long) */
308 FALSE
, /* pc_relative */
310 complain_overflow_bitfield
,/* complain_on_overflow */
311 nds32_elf_generic_reloc
,/* special_function */
312 "R_NDS32_32", /* name */
313 FALSE
, /* partial_inplace */
314 0xffffffff, /* src_mask */
315 0xffffffff, /* dst_mask */
316 FALSE
), /* pcrel_offset */
318 /* A 20 bit address. */
319 HOWTO2 (R_NDS32_20
, /* type */
321 2, /* size (0 = byte, 1 = short, 2 = long) */
323 FALSE
, /* pc_relative */
325 complain_overflow_unsigned
,/* complain_on_overflow */
326 nds32_elf_generic_reloc
,/* special_function */
327 "R_NDS32_20", /* name */
328 FALSE
, /* partial_inplace */
329 0xfffff, /* src_mask */
330 0xfffff, /* dst_mask */
331 FALSE
), /* pcrel_offset */
333 /* An PC Relative 9-bit relocation, shifted by 2.
334 This reloc is complicated because relocations are relative to pc & -4.
335 i.e. branches in the right insn slot use the address of the left insn
337 /* It's not clear whether this should have partial_inplace set or not.
338 Branch relaxing in the assembler can store the addend in the insn,
339 and if bfd_install_relocation gets called the addend may get added
341 HOWTO2 (R_NDS32_9_PCREL
, /* type */
343 1, /* size (0 = byte, 1 = short, 2 = long) */
345 TRUE
, /* pc_relative */
347 complain_overflow_signed
,/* complain_on_overflow */
348 nds32_elf_9_pcrel_reloc
,/* special_function */
349 "R_NDS32_9_PCREL", /* name */
350 FALSE
, /* partial_inplace */
353 TRUE
), /* pcrel_offset */
355 /* A relative 15 bit relocation, right shifted by 1. */
356 HOWTO2 (R_NDS32_15_PCREL
, /* type */
358 2, /* size (0 = byte, 1 = short, 2 = long) */
360 TRUE
, /* pc_relative */
362 complain_overflow_signed
,/* complain_on_overflow */
363 bfd_elf_generic_reloc
, /* special_function */
364 "R_NDS32_15_PCREL", /* name */
365 FALSE
, /* partial_inplace */
366 0x3fff, /* src_mask */
367 0x3fff, /* dst_mask */
368 TRUE
), /* pcrel_offset */
370 /* A relative 17 bit relocation, right shifted by 1. */
371 HOWTO2 (R_NDS32_17_PCREL
, /* type */
373 2, /* size (0 = byte, 1 = short, 2 = long) */
375 TRUE
, /* pc_relative */
377 complain_overflow_signed
,/* complain_on_overflow */
378 bfd_elf_generic_reloc
, /* special_function */
379 "R_NDS32_17_PCREL", /* name */
380 FALSE
, /* partial_inplace */
381 0xffff, /* src_mask */
382 0xffff, /* dst_mask */
383 TRUE
), /* pcrel_offset */
385 /* A relative 25 bit relocation, right shifted by 1. */
386 /* It's not clear whether this should have partial_inplace set or not.
387 Branch relaxing in the assembler can store the addend in the insn,
388 and if bfd_install_relocation gets called the addend may get added
390 HOWTO2 (R_NDS32_25_PCREL
, /* type */
392 2, /* size (0 = byte, 1 = short, 2 = long) */
394 TRUE
, /* pc_relative */
396 complain_overflow_signed
,/* complain_on_overflow */
397 bfd_elf_generic_reloc
, /* special_function */
398 "R_NDS32_25_PCREL", /* name */
399 FALSE
, /* partial_inplace */
400 0xffffff, /* src_mask */
401 0xffffff, /* dst_mask */
402 TRUE
), /* pcrel_offset */
404 /* High 20 bits of address when lower 12 is or'd in. */
405 HOWTO2 (R_NDS32_HI20
, /* type */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
409 FALSE
, /* pc_relative */
411 complain_overflow_dont
,/* complain_on_overflow */
412 nds32_elf_hi20_reloc
, /* special_function */
413 "R_NDS32_HI20", /* name */
414 FALSE
, /* partial_inplace */
415 0x000fffff, /* src_mask */
416 0x000fffff, /* dst_mask */
417 FALSE
), /* pcrel_offset */
419 /* Lower 12 bits of address. */
420 HOWTO2 (R_NDS32_LO12S3
, /* type */
422 2, /* size (0 = byte, 1 = short, 2 = long) */
424 FALSE
, /* pc_relative */
426 complain_overflow_dont
,/* complain_on_overflow */
427 nds32_elf_lo12_reloc
, /* special_function */
428 "R_NDS32_LO12S3", /* name */
429 FALSE
, /* partial_inplace */
430 0x000001ff, /* src_mask */
431 0x000001ff, /* dst_mask */
432 FALSE
), /* pcrel_offset */
434 /* Lower 12 bits of address. */
435 HOWTO2 (R_NDS32_LO12S2
, /* type */
437 2, /* size (0 = byte, 1 = short, 2 = long) */
439 FALSE
, /* pc_relative */
441 complain_overflow_dont
,/* complain_on_overflow */
442 nds32_elf_lo12_reloc
, /* special_function */
443 "R_NDS32_LO12S2", /* name */
444 FALSE
, /* partial_inplace */
445 0x000003ff, /* src_mask */
446 0x000003ff, /* dst_mask */
447 FALSE
), /* pcrel_offset */
449 /* Lower 12 bits of address. */
450 HOWTO2 (R_NDS32_LO12S1
, /* type */
452 2, /* size (0 = byte, 1 = short, 2 = long) */
454 FALSE
, /* pc_relative */
456 complain_overflow_dont
,/* complain_on_overflow */
457 nds32_elf_lo12_reloc
, /* special_function */
458 "R_NDS32_LO12S1", /* name */
459 FALSE
, /* partial_inplace */
460 0x000007ff, /* src_mask */
461 0x000007ff, /* dst_mask */
462 FALSE
), /* pcrel_offset */
464 /* Lower 12 bits of address. */
465 HOWTO2 (R_NDS32_LO12S0
, /* type */
467 2, /* size (0 = byte, 1 = short, 2 = long) */
469 FALSE
, /* pc_relative */
471 complain_overflow_dont
,/* complain_on_overflow */
472 nds32_elf_lo12_reloc
, /* special_function */
473 "R_NDS32_LO12S0", /* name */
474 FALSE
, /* partial_inplace */
475 0x00000fff, /* src_mask */
476 0x00000fff, /* dst_mask */
477 FALSE
), /* pcrel_offset */
479 /* Small data area 15 bits offset. */
480 HOWTO2 (R_NDS32_SDA15S3
, /* type */
482 2, /* size (0 = byte, 1 = short, 2 = long) */
484 FALSE
, /* pc_relative */
486 complain_overflow_signed
,/* complain_on_overflow */
487 nds32_elf_sda15_reloc
, /* special_function */
488 "R_NDS32_SDA15S3", /* name */
489 FALSE
, /* partial_inplace */
490 0x00007fff, /* src_mask */
491 0x00007fff, /* dst_mask */
492 FALSE
), /* pcrel_offset */
494 /* Small data area 15 bits offset. */
495 HOWTO2 (R_NDS32_SDA15S2
, /* type */
497 2, /* size (0 = byte, 1 = short, 2 = long) */
499 FALSE
, /* pc_relative */
501 complain_overflow_signed
,/* complain_on_overflow */
502 nds32_elf_sda15_reloc
, /* special_function */
503 "R_NDS32_SDA15S2", /* name */
504 FALSE
, /* partial_inplace */
505 0x00007fff, /* src_mask */
506 0x00007fff, /* dst_mask */
507 FALSE
), /* pcrel_offset */
509 /* Small data area 15 bits offset. */
510 HOWTO2 (R_NDS32_SDA15S1
, /* type */
512 2, /* size (0 = byte, 1 = short, 2 = long) */
514 FALSE
, /* pc_relative */
516 complain_overflow_signed
,/* complain_on_overflow */
517 nds32_elf_sda15_reloc
, /* special_function */
518 "R_NDS32_SDA15S1", /* name */
519 FALSE
, /* partial_inplace */
520 0x00007fff, /* src_mask */
521 0x00007fff, /* dst_mask */
522 FALSE
), /* pcrel_offset */
524 /* Small data area 15 bits offset. */
525 HOWTO2 (R_NDS32_SDA15S0
, /* type */
527 2, /* size (0 = byte, 1 = short, 2 = long) */
529 FALSE
, /* pc_relative */
531 complain_overflow_signed
,/* complain_on_overflow */
532 nds32_elf_sda15_reloc
, /* special_function */
533 "R_NDS32_SDA15S0", /* name */
534 FALSE
, /* partial_inplace */
535 0x00007fff, /* src_mask */
536 0x00007fff, /* dst_mask */
537 FALSE
), /* pcrel_offset */
539 /* GNU extension to record C++ vtable hierarchy */
540 HOWTO2 (R_NDS32_GNU_VTINHERIT
,/* type */
542 2, /* size (0 = byte, 1 = short, 2 = long) */
544 FALSE
, /* pc_relative */
546 complain_overflow_dont
,/* complain_on_overflow */
547 NULL
, /* special_function */
548 "R_NDS32_GNU_VTINHERIT",/* name */
549 FALSE
, /* partial_inplace */
552 FALSE
), /* pcrel_offset */
554 /* GNU extension to record C++ vtable member usage */
555 HOWTO2 (R_NDS32_GNU_VTENTRY
, /* type */
557 2, /* size (0 = byte, 1 = short, 2 = long) */
559 FALSE
, /* pc_relative */
561 complain_overflow_dont
,/* complain_on_overflow */
562 _bfd_elf_rel_vtable_reloc_fn
,/* special_function */
563 "R_NDS32_GNU_VTENTRY", /* name */
564 FALSE
, /* partial_inplace */
567 FALSE
), /* pcrel_offset */
569 /* A 16 bit absolute relocation. */
570 HOWTO2 (R_NDS32_16_RELA
, /* type */
572 1, /* size (0 = byte, 1 = short, 2 = long) */
574 FALSE
, /* pc_relative */
576 complain_overflow_bitfield
,/* complain_on_overflow */
577 bfd_elf_generic_reloc
, /* special_function */
578 "R_NDS32_16_RELA", /* name */
579 FALSE
, /* partial_inplace */
580 0xffff, /* src_mask */
581 0xffff, /* dst_mask */
582 FALSE
), /* pcrel_offset */
584 /* A 32 bit absolute relocation. */
585 HOWTO2 (R_NDS32_32_RELA
, /* type */
587 2, /* size (0 = byte, 1 = short, 2 = long) */
589 FALSE
, /* pc_relative */
591 complain_overflow_bitfield
,/* complain_on_overflow */
592 bfd_elf_generic_reloc
, /* special_function */
593 "R_NDS32_32_RELA", /* name */
594 FALSE
, /* partial_inplace */
595 0xffffffff, /* src_mask */
596 0xffffffff, /* dst_mask */
597 FALSE
), /* pcrel_offset */
599 /* A 20 bit address. */
600 HOWTO2 (R_NDS32_20_RELA
, /* type */
602 2, /* size (0 = byte, 1 = short, 2 = long) */
604 FALSE
, /* pc_relative */
606 complain_overflow_signed
,/* complain_on_overflow */
607 bfd_elf_generic_reloc
, /* special_function */
608 "R_NDS32_20_RELA", /* name */
609 FALSE
, /* partial_inplace */
610 0xfffff, /* src_mask */
611 0xfffff, /* dst_mask */
612 FALSE
), /* pcrel_offset */
614 HOWTO2 (R_NDS32_9_PCREL_RELA
, /* type */
616 1, /* size (0 = byte, 1 = short, 2 = long) */
618 TRUE
, /* pc_relative */
620 complain_overflow_signed
,/* complain_on_overflow */
621 bfd_elf_generic_reloc
, /* special_function */
622 "R_NDS32_9_PCREL_RELA",/* name */
623 FALSE
, /* partial_inplace */
626 TRUE
), /* pcrel_offset */
628 /* A relative 15 bit relocation, right shifted by 1. */
629 HOWTO2 (R_NDS32_15_PCREL_RELA
,/* type */
631 2, /* size (0 = byte, 1 = short, 2 = long) */
633 TRUE
, /* pc_relative */
635 complain_overflow_signed
,/* complain_on_overflow */
636 bfd_elf_generic_reloc
, /* special_function */
637 "R_NDS32_15_PCREL_RELA",/* name */
638 FALSE
, /* partial_inplace */
639 0x3fff, /* src_mask */
640 0x3fff, /* dst_mask */
641 TRUE
), /* pcrel_offset */
643 /* A relative 17 bit relocation, right shifted by 1. */
644 HOWTO2 (R_NDS32_17_PCREL_RELA
,/* type */
646 2, /* size (0 = byte, 1 = short, 2 = long) */
648 TRUE
, /* pc_relative */
650 complain_overflow_signed
,/* complain_on_overflow */
651 bfd_elf_generic_reloc
, /* special_function */
652 "R_NDS32_17_PCREL_RELA",/* name */
653 FALSE
, /* partial_inplace */
654 0xffff, /* src_mask */
655 0xffff, /* dst_mask */
656 TRUE
), /* pcrel_offset */
658 /* A relative 25 bit relocation, right shifted by 2. */
659 HOWTO2 (R_NDS32_25_PCREL_RELA
,/* type */
661 2, /* size (0 = byte, 1 = short, 2 = long) */
663 TRUE
, /* pc_relative */
665 complain_overflow_signed
,/* complain_on_overflow */
666 bfd_elf_generic_reloc
, /* special_function */
667 "R_NDS32_25_PCREL_RELA",/* name */
668 FALSE
, /* partial_inplace */
669 0xffffff, /* src_mask */
670 0xffffff, /* dst_mask */
671 TRUE
), /* pcrel_offset */
673 /* High 20 bits of address when lower 16 is or'd in. */
674 HOWTO2 (R_NDS32_HI20_RELA
, /* type */
676 2, /* size (0 = byte, 1 = short, 2 = long) */
678 FALSE
, /* pc_relative */
680 complain_overflow_dont
,/* complain_on_overflow */
681 bfd_elf_generic_reloc
, /* special_function */
682 "R_NDS32_HI20_RELA", /* name */
683 FALSE
, /* partial_inplace */
684 0x000fffff, /* src_mask */
685 0x000fffff, /* dst_mask */
686 FALSE
), /* pcrel_offset */
688 /* Lower 12 bits of address. */
689 HOWTO2 (R_NDS32_LO12S3_RELA
, /* type */
691 2, /* size (0 = byte, 1 = short, 2 = long) */
693 FALSE
, /* pc_relative */
695 complain_overflow_dont
,/* complain_on_overflow */
696 bfd_elf_generic_reloc
, /* special_function */
697 "R_NDS32_LO12S3_RELA", /* name */
698 FALSE
, /* partial_inplace */
699 0x000001ff, /* src_mask */
700 0x000001ff, /* dst_mask */
701 FALSE
), /* pcrel_offset */
703 /* Lower 12 bits of address. */
704 HOWTO2 (R_NDS32_LO12S2_RELA
, /* type */
706 2, /* size (0 = byte, 1 = short, 2 = long) */
708 FALSE
, /* pc_relative */
710 complain_overflow_dont
,/* complain_on_overflow */
711 bfd_elf_generic_reloc
, /* special_function */
712 "R_NDS32_LO12S2_RELA", /* name */
713 FALSE
, /* partial_inplace */
714 0x000003ff, /* src_mask */
715 0x000003ff, /* dst_mask */
716 FALSE
), /* pcrel_offset */
718 /* Lower 12 bits of address. */
719 HOWTO2 (R_NDS32_LO12S1_RELA
, /* type */
721 2, /* size (0 = byte, 1 = short, 2 = long) */
723 FALSE
, /* pc_relative */
725 complain_overflow_dont
,/* complain_on_overflow */
726 bfd_elf_generic_reloc
, /* special_function */
727 "R_NDS32_LO12S1_RELA", /* name */
728 FALSE
, /* partial_inplace */
729 0x000007ff, /* src_mask */
730 0x000007ff, /* dst_mask */
731 FALSE
), /* pcrel_offset */
733 /* Lower 12 bits of address. */
734 HOWTO2 (R_NDS32_LO12S0_RELA
, /* type */
736 2, /* size (0 = byte, 1 = short, 2 = long) */
738 FALSE
, /* pc_relative */
740 complain_overflow_dont
,/* complain_on_overflow */
741 bfd_elf_generic_reloc
, /* special_function */
742 "R_NDS32_LO12S0_RELA", /* name */
743 FALSE
, /* partial_inplace */
744 0x00000fff, /* src_mask */
745 0x00000fff, /* dst_mask */
746 FALSE
), /* pcrel_offset */
748 /* Small data area 15 bits offset. */
749 HOWTO2 (R_NDS32_SDA15S3_RELA
, /* type */
751 2, /* size (0 = byte, 1 = short, 2 = long) */
753 FALSE
, /* pc_relative */
755 complain_overflow_signed
,/* complain_on_overflow */
756 bfd_elf_generic_reloc
, /* special_function */
757 "R_NDS32_SDA15S3_RELA",/* name */
758 FALSE
, /* partial_inplace */
759 0x00007fff, /* src_mask */
760 0x00007fff, /* dst_mask */
761 FALSE
), /* pcrel_offset */
763 /* Small data area 15 bits offset. */
764 HOWTO2 (R_NDS32_SDA15S2_RELA
, /* type */
766 2, /* size (0 = byte, 1 = short, 2 = long) */
768 FALSE
, /* pc_relative */
770 complain_overflow_signed
,/* complain_on_overflow */
771 bfd_elf_generic_reloc
, /* special_function */
772 "R_NDS32_SDA15S2_RELA",/* name */
773 FALSE
, /* partial_inplace */
774 0x00007fff, /* src_mask */
775 0x00007fff, /* dst_mask */
776 FALSE
), /* pcrel_offset */
778 HOWTO2 (R_NDS32_SDA15S1_RELA
, /* type */
780 2, /* size (0 = byte, 1 = short, 2 = long) */
782 FALSE
, /* pc_relative */
784 complain_overflow_signed
,/* complain_on_overflow */
785 bfd_elf_generic_reloc
, /* special_function */
786 "R_NDS32_SDA15S1_RELA",/* name */
787 FALSE
, /* partial_inplace */
788 0x00007fff, /* src_mask */
789 0x00007fff, /* dst_mask */
790 FALSE
), /* pcrel_offset */
792 HOWTO2 (R_NDS32_SDA15S0_RELA
, /* type */
794 2, /* size (0 = byte, 1 = short, 2 = long) */
796 FALSE
, /* pc_relative */
798 complain_overflow_signed
,/* complain_on_overflow */
799 bfd_elf_generic_reloc
, /* special_function */
800 "R_NDS32_SDA15S0_RELA",/* name */
801 FALSE
, /* partial_inplace */
802 0x00007fff, /* src_mask */
803 0x00007fff, /* dst_mask */
804 FALSE
), /* pcrel_offset */
806 /* GNU extension to record C++ vtable hierarchy */
807 HOWTO2 (R_NDS32_RELA_GNU_VTINHERIT
,/* type */
809 2, /* size (0 = byte, 1 = short, 2 = long) */
811 FALSE
, /* pc_relative */
813 complain_overflow_dont
,/* complain_on_overflow */
814 NULL
, /* special_function */
815 "R_NDS32_RELA_GNU_VTINHERIT",/* name */
816 FALSE
, /* partial_inplace */
819 FALSE
), /* pcrel_offset */
821 /* GNU extension to record C++ vtable member usage */
822 HOWTO2 (R_NDS32_RELA_GNU_VTENTRY
,/* type */
824 2, /* size (0 = byte, 1 = short, 2 = long) */
826 FALSE
, /* pc_relative */
828 complain_overflow_dont
,/* complain_on_overflow */
829 _bfd_elf_rel_vtable_reloc_fn
,/* special_function */
830 "R_NDS32_RELA_GNU_VTENTRY",/* name */
831 FALSE
, /* partial_inplace */
834 FALSE
), /* pcrel_offset */
836 /* Like R_NDS32_20, but referring to the GOT table entry for
838 HOWTO2 (R_NDS32_GOT20
, /* type */
840 2, /* size (0 = byte, 1 = short, 2 = long) */
842 FALSE
, /* pc_relative */
844 complain_overflow_signed
,/* complain_on_overflow */
845 bfd_elf_generic_reloc
, /* special_function */
846 "R_NDS32_GOT20", /* name */
847 FALSE
, /* partial_inplace */
848 0xfffff, /* src_mask */
849 0xfffff, /* dst_mask */
850 FALSE
), /* pcrel_offset */
852 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
853 entry for the symbol. */
854 HOWTO2 (R_NDS32_25_PLTREL
, /* type */
856 2, /* size (0 = byte, 1 = short, 2 = long) */
858 TRUE
, /* pc_relative */
860 complain_overflow_signed
,/* complain_on_overflow */
861 bfd_elf_generic_reloc
, /* special_function */
862 "R_NDS32_25_PLTREL", /* name */
863 FALSE
, /* partial_inplace */
864 0xffffff, /* src_mask */
865 0xffffff, /* dst_mask */
866 TRUE
), /* pcrel_offset */
868 /* This is used only by the dynamic linker. The symbol should exist
869 both in the object being run and in some shared library. The
870 dynamic linker copies the data addressed by the symbol from the
871 shared library into the object, because the object being
872 run has to have the data at some particular address. */
873 HOWTO2 (R_NDS32_COPY
, /* type */
875 2, /* size (0 = byte, 1 = short, 2 = long) */
877 FALSE
, /* pc_relative */
879 complain_overflow_bitfield
,/* complain_on_overflow */
880 bfd_elf_generic_reloc
, /* special_function */
881 "R_NDS32_COPY", /* name */
882 FALSE
, /* partial_inplace */
883 0xffffffff, /* src_mask */
884 0xffffffff, /* dst_mask */
885 FALSE
), /* pcrel_offset */
887 /* Like R_NDS32_20, but used when setting global offset table
889 HOWTO2 (R_NDS32_GLOB_DAT
, /* type */
891 2, /* size (0 = byte, 1 = short, 2 = long) */
893 FALSE
, /* pc_relative */
895 complain_overflow_bitfield
,/* complain_on_overflow */
896 bfd_elf_generic_reloc
, /* special_function */
897 "R_NDS32_GLOB_DAT", /* name */
898 FALSE
, /* partial_inplace */
899 0xffffffff, /* src_mask */
900 0xffffffff, /* dst_mask */
901 FALSE
), /* pcrel_offset */
903 /* Marks a procedure linkage table entry for a symbol. */
904 HOWTO2 (R_NDS32_JMP_SLOT
, /* type */
906 2, /* size (0 = byte, 1 = short, 2 = long) */
908 FALSE
, /* pc_relative */
910 complain_overflow_bitfield
,/* complain_on_overflow */
911 bfd_elf_generic_reloc
, /* special_function */
912 "R_NDS32_JMP_SLOT", /* name */
913 FALSE
, /* partial_inplace */
914 0xffffffff, /* src_mask */
915 0xffffffff, /* dst_mask */
916 FALSE
), /* pcrel_offset */
918 /* Used only by the dynamic linker. When the object is run, this
919 longword is set to the load address of the object, plus the
921 HOWTO2 (R_NDS32_RELATIVE
, /* type */
923 2, /* size (0 = byte, 1 = short, 2 = long) */
925 FALSE
, /* pc_relative */
927 complain_overflow_bitfield
,/* complain_on_overflow */
928 bfd_elf_generic_reloc
, /* special_function */
929 "R_NDS32_RELATIVE", /* name */
930 FALSE
, /* partial_inplace */
931 0xffffffff, /* src_mask */
932 0xffffffff, /* dst_mask */
933 FALSE
), /* pcrel_offset */
935 HOWTO2 (R_NDS32_GOTOFF
, /* type */
937 2, /* size (0 = byte, 1 = short, 2 = long) */
939 FALSE
, /* pc_relative */
941 complain_overflow_signed
,/* complain_on_overflow */
942 bfd_elf_generic_reloc
, /* special_function */
943 "R_NDS32_GOTOFF", /* name */
944 FALSE
, /* partial_inplace */
945 0xfffff, /* src_mask */
946 0xfffff, /* dst_mask */
947 FALSE
), /* pcrel_offset */
949 /* An PC Relative 20-bit relocation used when setting PIC offset
951 HOWTO2 (R_NDS32_GOTPC20
, /* type */
953 2, /* size (0 = byte, 1 = short, 2 = long) */
955 TRUE
, /* pc_relative */
957 complain_overflow_signed
,/* complain_on_overflow */
958 bfd_elf_generic_reloc
, /* special_function */
959 "R_NDS32_GOTPC20", /* name */
960 FALSE
, /* partial_inplace */
961 0xfffff, /* src_mask */
962 0xfffff, /* dst_mask */
963 TRUE
), /* pcrel_offset */
965 /* Like R_NDS32_HI20, but referring to the GOT table entry for
967 HOWTO2 (R_NDS32_GOT_HI20
, /* type */
969 2, /* size (0 = byte, 1 = short, 2 = long) */
971 FALSE
, /* pc_relative */
973 complain_overflow_dont
,/* complain_on_overflow */
974 bfd_elf_generic_reloc
, /* special_function */
975 "R_NDS32_GOT_HI20", /* name */
976 FALSE
, /* partial_inplace */
977 0x000fffff, /* src_mask */
978 0x000fffff, /* dst_mask */
979 FALSE
), /* pcrel_offset */
980 HOWTO2 (R_NDS32_GOT_LO12
, /* type */
982 2, /* size (0 = byte, 1 = short, 2 = long) */
984 FALSE
, /* pc_relative */
986 complain_overflow_dont
,/* complain_on_overflow */
987 bfd_elf_generic_reloc
, /* special_function */
988 "R_NDS32_GOT_LO12", /* name */
989 FALSE
, /* partial_inplace */
990 0x00000fff, /* src_mask */
991 0x00000fff, /* dst_mask */
992 FALSE
), /* pcrel_offset */
994 /* An PC Relative relocation used when setting PIC offset table register.
995 Like R_NDS32_HI20, but referring to the GOT table entry for
997 HOWTO2 (R_NDS32_GOTPC_HI20
, /* type */
999 2, /* size (0 = byte, 1 = short, 2 = long) */
1001 FALSE
, /* pc_relative */
1003 complain_overflow_dont
,/* complain_on_overflow */
1004 bfd_elf_generic_reloc
, /* special_function */
1005 "R_NDS32_GOTPC_HI20", /* name */
1006 FALSE
, /* partial_inplace */
1007 0x000fffff, /* src_mask */
1008 0x000fffff, /* dst_mask */
1009 TRUE
), /* pcrel_offset */
1010 HOWTO2 (R_NDS32_GOTPC_LO12
, /* type */
1012 2, /* size (0 = byte, 1 = short, 2 = long) */
1014 FALSE
, /* pc_relative */
1016 complain_overflow_dont
,/* complain_on_overflow */
1017 bfd_elf_generic_reloc
, /* special_function */
1018 "R_NDS32_GOTPC_LO12", /* name */
1019 FALSE
, /* partial_inplace */
1020 0x00000fff, /* src_mask */
1021 0x00000fff, /* dst_mask */
1022 TRUE
), /* pcrel_offset */
1024 HOWTO2 (R_NDS32_GOTOFF_HI20
, /* type */
1025 12, /* rightshift */
1026 2, /* size (0 = byte, 1 = short, 2 = long) */
1028 FALSE
, /* pc_relative */
1030 complain_overflow_dont
,/* complain_on_overflow */
1031 bfd_elf_generic_reloc
, /* special_function */
1032 "R_NDS32_GOTOFF_HI20", /* name */
1033 FALSE
, /* partial_inplace */
1034 0x000fffff, /* src_mask */
1035 0x000fffff, /* dst_mask */
1036 FALSE
), /* pcrel_offset */
1037 HOWTO2 (R_NDS32_GOTOFF_LO12
, /* type */
1039 2, /* size (0 = byte, 1 = short, 2 = long) */
1041 FALSE
, /* pc_relative */
1043 complain_overflow_dont
,/* complain_on_overflow */
1044 bfd_elf_generic_reloc
, /* special_function */
1045 "R_NDS32_GOTOFF_LO12", /* name */
1046 FALSE
, /* partial_inplace */
1047 0x00000fff, /* src_mask */
1048 0x00000fff, /* dst_mask */
1049 FALSE
), /* pcrel_offset */
1051 /* Alignment hint for relaxable instruction. This is used with
1052 R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2
1053 in order to make next label aligned on word boundary. */
1054 HOWTO2 (R_NDS32_INSN16
, /* type */
1056 2, /* size (0 = byte, 1 = short, 2 = long) */
1058 FALSE
, /* pc_relative */
1060 complain_overflow_dont
,/* complain_on_overflow */
1061 nds32_elf_ignore_reloc
,/* special_function */
1062 "R_NDS32_INSN16", /* name */
1063 FALSE
, /* partial_inplace */
1064 0x00000fff, /* src_mask */
1065 0x00000fff, /* dst_mask */
1066 FALSE
), /* pcrel_offset */
1068 /* Alignment hint for label. */
1069 HOWTO2 (R_NDS32_LABEL
, /* type */
1071 2, /* size (0 = byte, 1 = short, 2 = long) */
1073 FALSE
, /* pc_relative */
1075 complain_overflow_dont
,/* complain_on_overflow */
1076 nds32_elf_ignore_reloc
,/* special_function */
1077 "R_NDS32_LABEL", /* name */
1078 FALSE
, /* partial_inplace */
1079 0xffffffff, /* src_mask */
1080 0xffffffff, /* dst_mask */
1081 FALSE
), /* pcrel_offset */
1083 /* Relax hint for unconditional call sequence */
1084 HOWTO2 (R_NDS32_LONGCALL1
, /* type */
1086 2, /* size (0 = byte, 1 = short, 2 = long) */
1088 FALSE
, /* pc_relative */
1090 complain_overflow_dont
,/* complain_on_overflow */
1091 nds32_elf_ignore_reloc
,/* special_function */
1092 "R_NDS32_LONGCALL1", /* name */
1093 FALSE
, /* partial_inplace */
1094 0xffffffff, /* src_mask */
1095 0xffffffff, /* dst_mask */
1096 FALSE
), /* pcrel_offset */
1098 /* Relax hint for conditional call sequence. */
1099 HOWTO2 (R_NDS32_LONGCALL2
, /* type */
1101 2, /* size (0 = byte, 1 = short, 2 = long) */
1103 FALSE
, /* pc_relative */
1105 complain_overflow_dont
,/* complain_on_overflow */
1106 nds32_elf_ignore_reloc
,/* special_function */
1107 "R_NDS32_LONGCALL2", /* name */
1108 FALSE
, /* partial_inplace */
1109 0xffffffff, /* src_mask */
1110 0xffffffff, /* dst_mask */
1111 FALSE
), /* pcrel_offset */
1113 /* Relax hint for conditional call sequence. */
1114 HOWTO2 (R_NDS32_LONGCALL3
, /* type */
1116 2, /* size (0 = byte, 1 = short, 2 = long) */
1118 FALSE
, /* pc_relative */
1120 complain_overflow_dont
,/* complain_on_overflow */
1121 nds32_elf_ignore_reloc
,/* special_function */
1122 "R_NDS32_LONGCALL3", /* name */
1123 FALSE
, /* partial_inplace */
1124 0xffffffff, /* src_mask */
1125 0xffffffff, /* dst_mask */
1126 FALSE
), /* pcrel_offset */
1128 /* Relax hint for unconditional branch sequence. */
1129 HOWTO2 (R_NDS32_LONGJUMP1
, /* type */
1131 2, /* size (0 = byte, 1 = short, 2 = long) */
1133 FALSE
, /* pc_relative */
1135 complain_overflow_dont
,/* complain_on_overflow */
1136 nds32_elf_ignore_reloc
,/* special_function */
1137 "R_NDS32_LONGJUMP1", /* name */
1138 FALSE
, /* partial_inplace */
1139 0xffffffff, /* src_mask */
1140 0xffffffff, /* dst_mask */
1141 FALSE
), /* pcrel_offset */
1143 /* Relax hint for conditional branch sequence. */
1144 HOWTO2 (R_NDS32_LONGJUMP2
, /* type */
1146 2, /* size (0 = byte, 1 = short, 2 = long) */
1148 FALSE
, /* pc_relative */
1150 complain_overflow_dont
,/* complain_on_overflow */
1151 nds32_elf_ignore_reloc
,/* special_function */
1152 "R_NDS32_LONGJUMP2", /* name */
1153 FALSE
, /* partial_inplace */
1154 0xffffffff, /* src_mask */
1155 0xffffffff, /* dst_mask */
1156 FALSE
), /* pcrel_offset */
1158 /* Relax hint for conditional branch sequence. */
1159 HOWTO2 (R_NDS32_LONGJUMP3
, /* type */
1161 2, /* size (0 = byte, 1 = short, 2 = long) */
1163 FALSE
, /* pc_relative */
1165 complain_overflow_dont
,/* complain_on_overflow */
1166 nds32_elf_ignore_reloc
,/* special_function */
1167 "R_NDS32_LONGJUMP3", /* name */
1168 FALSE
, /* partial_inplace */
1169 0xffffffff, /* src_mask */
1170 0xffffffff, /* dst_mask */
1171 FALSE
), /* pcrel_offset */
1173 /* Relax hint for load/store sequence. */
1174 HOWTO2 (R_NDS32_LOADSTORE
, /* type */
1176 2, /* size (0 = byte, 1 = short, 2 = long) */
1178 FALSE
, /* pc_relative */
1180 complain_overflow_dont
,/* complain_on_overflow */
1181 nds32_elf_ignore_reloc
,/* special_function */
1182 "R_NDS32_LOADSTORE", /* name */
1183 FALSE
, /* partial_inplace */
1184 0xffffffff, /* src_mask */
1185 0xffffffff, /* dst_mask */
1186 FALSE
), /* pcrel_offset */
1188 /* Relax hint for load/store sequence. */
1189 HOWTO2 (R_NDS32_9_FIXED_RELA
, /* type */
1191 1, /* size (0 = byte, 1 = short, 2 = long) */
1193 FALSE
, /* pc_relative */
1195 complain_overflow_dont
,/* complain_on_overflow */
1196 nds32_elf_ignore_reloc
,/* special_function */
1197 "R_NDS32_9_FIXED_RELA",/* name */
1198 FALSE
, /* partial_inplace */
1199 0x000000ff, /* src_mask */
1200 0x000000ff, /* dst_mask */
1201 FALSE
), /* pcrel_offset */
1203 /* Relax hint for load/store sequence. */
1204 HOWTO2 (R_NDS32_15_FIXED_RELA
,/* type */
1206 2, /* size (0 = byte, 1 = short, 2 = long) */
1208 FALSE
, /* pc_relative */
1210 complain_overflow_dont
,/* complain_on_overflow */
1211 nds32_elf_ignore_reloc
,/* special_function */
1212 "R_NDS32_15_FIXED_RELA",/* name */
1213 FALSE
, /* partial_inplace */
1214 0x00003fff, /* src_mask */
1215 0x00003fff, /* dst_mask */
1216 FALSE
), /* pcrel_offset */
1218 /* Relax hint for load/store sequence. */
1219 HOWTO2 (R_NDS32_17_FIXED_RELA
,/* type */
1221 2, /* size (0 = byte, 1 = short, 2 = long) */
1223 FALSE
, /* pc_relative */
1225 complain_overflow_dont
,/* complain_on_overflow */
1226 nds32_elf_ignore_reloc
,/* special_function */
1227 "R_NDS32_17_FIXED_RELA",/* name */
1228 FALSE
, /* partial_inplace */
1229 0x0000ffff, /* src_mask */
1230 0x0000ffff, /* dst_mask */
1231 FALSE
), /* pcrel_offset */
1233 /* Relax hint for load/store sequence. */
1234 HOWTO2 (R_NDS32_25_FIXED_RELA
,/* type */
1236 2, /* size (0 = byte, 1 = short, 2 = long) */
1238 FALSE
, /* pc_relative */
1240 complain_overflow_dont
,/* complain_on_overflow */
1241 nds32_elf_ignore_reloc
,/* special_function */
1242 "R_NDS32_25_FIXED_RELA",/* name */
1243 FALSE
, /* partial_inplace */
1244 0x00ffffff, /* src_mask */
1245 0x00ffffff, /* dst_mask */
1246 FALSE
), /* pcrel_offset */
1248 /* High 20 bits of PLT symbol offset relative to PC. */
1249 HOWTO2 (R_NDS32_PLTREL_HI20
, /* type */
1250 12, /* rightshift */
1251 2, /* size (0 = byte, 1 = short, 2 = long) */
1253 FALSE
, /* pc_relative */
1255 complain_overflow_dont
,/* complain_on_overflow */
1256 bfd_elf_generic_reloc
, /* special_function */
1257 "R_NDS32_PLTREL_HI20", /* name */
1258 FALSE
, /* partial_inplace */
1259 0x000fffff, /* src_mask */
1260 0x000fffff, /* dst_mask */
1261 FALSE
), /* pcrel_offset */
1263 /* Low 12 bits of PLT symbol offset relative to PC. */
1264 HOWTO2 (R_NDS32_PLTREL_LO12
, /* type */
1266 2, /* size (0 = byte, 1 = short, 2 = long) */
1268 FALSE
, /* pc_relative */
1270 complain_overflow_dont
,/* complain_on_overflow */
1271 bfd_elf_generic_reloc
, /* special_function */
1272 "R_NDS32_PLTREL_LO12", /* name */
1273 FALSE
, /* partial_inplace */
1274 0x00000fff, /* src_mask */
1275 0x00000fff, /* dst_mask */
1276 FALSE
), /* pcrel_offset */
1278 /* High 20 bits of PLT symbol offset relative to GOT (GP). */
1279 HOWTO2 (R_NDS32_PLT_GOTREL_HI20
, /* type */
1280 12, /* rightshift */
1281 2, /* size (0 = byte, 1 = short, 2 = long) */
1283 FALSE
, /* pc_relative */
1285 complain_overflow_dont
,/* complain_on_overflow */
1286 bfd_elf_generic_reloc
, /* special_function */
1287 "R_NDS32_PLT_GOTREL_HI20",/* name */
1288 FALSE
, /* partial_inplace */
1289 0x000fffff, /* src_mask */
1290 0x000fffff, /* dst_mask */
1291 FALSE
), /* pcrel_offset */
1293 /* Low 12 bits of PLT symbol offset relative to GOT (GP). */
1294 HOWTO2 (R_NDS32_PLT_GOTREL_LO12
,/* type */
1296 2, /* size (0 = byte, 1 = short, 2 = long) */
1298 FALSE
, /* pc_relative */
1300 complain_overflow_dont
,/* complain_on_overflow */
1301 bfd_elf_generic_reloc
, /* special_function */
1302 "R_NDS32_PLT_GOTREL_LO12",/* name */
1303 FALSE
, /* partial_inplace */
1304 0x00000fff, /* src_mask */
1305 0x00000fff, /* dst_mask */
1306 FALSE
), /* pcrel_offset */
1308 /* Small data area 12 bits offset. */
1309 HOWTO2 (R_NDS32_SDA12S2_DP_RELA
,/* type */
1311 2, /* size (0 = byte, 1 = short, 2 = long) */
1313 FALSE
, /* pc_relative */
1315 complain_overflow_signed
,/* complain_on_overflow */
1316 bfd_elf_generic_reloc
, /* special_function */
1317 "R_NDS32_SDA12S2_DP_RELA",/* name */
1318 FALSE
, /* partial_inplace */
1319 0x00000fff, /* src_mask */
1320 0x00000fff, /* dst_mask */
1321 FALSE
), /* pcrel_offset */
1323 /* Small data area 12 bits offset. */
1324 HOWTO2 (R_NDS32_SDA12S2_SP_RELA
,/* type */
1326 2, /* size (0 = byte, 1 = short, 2 = long) */
1328 FALSE
, /* pc_relative */
1330 complain_overflow_signed
,/* complain_on_overflow */
1331 bfd_elf_generic_reloc
, /* special_function */
1332 "R_NDS32_SDA12S2_SP_RELA",/* name */
1333 FALSE
, /* partial_inplace */
1334 0x00000fff, /* src_mask */
1335 0x00000fff, /* dst_mask */
1336 FALSE
), /* pcrel_offset */
1337 /* Lower 12 bits of address. */
1339 HOWTO2 (R_NDS32_LO12S2_DP_RELA
, /* type */
1341 2, /* size (0 = byte, 1 = short, 2 = long) */
1343 FALSE
, /* pc_relative */
1345 complain_overflow_dont
,/* complain_on_overflow */
1346 bfd_elf_generic_reloc
, /* special_function */
1347 "R_NDS32_LO12S2_DP_RELA",/* name */
1348 FALSE
, /* partial_inplace */
1349 0x000003ff, /* src_mask */
1350 0x000003ff, /* dst_mask */
1351 FALSE
), /* pcrel_offset */
1353 /* Lower 12 bits of address. */
1354 HOWTO2 (R_NDS32_LO12S2_SP_RELA
,/* type */
1356 2, /* size (0 = byte, 1 = short, 2 = long) */
1358 FALSE
, /* pc_relative */
1360 complain_overflow_dont
,/* complain_on_overflow */
1361 bfd_elf_generic_reloc
, /* special_function */
1362 "R_NDS32_LO12S2_SP_RELA",/* name */
1363 FALSE
, /* partial_inplace */
1364 0x000003ff, /* src_mask */
1365 0x000003ff, /* dst_mask */
1366 FALSE
), /* pcrel_offset */
1367 /* Lower 12 bits of address. Special identity for or case. */
1368 HOWTO2 (R_NDS32_LO12S0_ORI_RELA
,/* type */
1370 2, /* size (0 = byte, 1 = short, 2 = long) */
1372 FALSE
, /* pc_relative */
1374 complain_overflow_dont
,/* complain_on_overflow */
1375 bfd_elf_generic_reloc
, /* special_function */
1376 "R_NDS32_LO12S0_ORI_RELA",/* name */
1377 FALSE
, /* partial_inplace */
1378 0x00000fff, /* src_mask */
1379 0x00000fff, /* dst_mask */
1380 FALSE
), /* pcrel_offset */
1381 /* Small data area 19 bits offset. */
1382 HOWTO2 (R_NDS32_SDA16S3_RELA
, /* type */
1384 2, /* size (0 = byte, 1 = short, 2 = long) */
1386 FALSE
, /* pc_relative */
1388 complain_overflow_signed
,/* complain_on_overflow */
1389 bfd_elf_generic_reloc
, /* special_function */
1390 "R_NDS32_SDA16S3_RELA",/* name */
1391 FALSE
, /* partial_inplace */
1392 0x0000ffff, /* src_mask */
1393 0x0000ffff, /* dst_mask */
1394 FALSE
), /* pcrel_offset */
1396 /* Small data area 15 bits offset. */
1397 HOWTO2 (R_NDS32_SDA17S2_RELA
, /* type */
1399 2, /* size (0 = byte, 1 = short, 2 = long) */
1401 FALSE
, /* pc_relative */
1403 complain_overflow_signed
,/* complain_on_overflow */
1404 bfd_elf_generic_reloc
, /* special_function */
1405 "R_NDS32_SDA17S2_RELA",/* name */
1406 FALSE
, /* partial_inplace */
1407 0x0001ffff, /* src_mask */
1408 0x0001ffff, /* dst_mask */
1409 FALSE
), /* pcrel_offset */
1411 HOWTO2 (R_NDS32_SDA18S1_RELA
, /* type */
1413 2, /* size (0 = byte, 1 = short, 2 = long) */
1415 FALSE
, /* pc_relative */
1417 complain_overflow_signed
,/* complain_on_overflow */
1418 bfd_elf_generic_reloc
, /* special_function */
1419 "R_NDS32_SDA18S1_RELA",/* name */
1420 FALSE
, /* partial_inplace */
1421 0x0003ffff, /* src_mask */
1422 0x0003ffff, /* dst_mask */
1423 FALSE
), /* pcrel_offset */
1425 HOWTO2 (R_NDS32_SDA19S0_RELA
, /* type */
1427 2, /* size (0 = byte, 1 = short, 2 = long) */
1429 FALSE
, /* pc_relative */
1431 complain_overflow_signed
,/* complain_on_overflow */
1432 bfd_elf_generic_reloc
, /* special_function */
1433 "R_NDS32_SDA19S0_RELA",/* name */
1434 FALSE
, /* partial_inplace */
1435 0x0007ffff, /* src_mask */
1436 0x0007ffff, /* dst_mask */
1437 FALSE
), /* pcrel_offset */
1438 HOWTO2 (R_NDS32_DWARF2_OP1_RELA
,/* type */
1440 0, /* size (0 = byte, 1 = short, 2 = long) */
1442 FALSE
, /* pc_relative */
1444 complain_overflow_dont
,/* complain_on_overflow */
1445 nds32_elf_ignore_reloc
,/* special_function */
1446 "R_NDS32_DWARF2_OP1_RELA",/* name */
1447 FALSE
, /* partial_inplace */
1448 0xff, /* src_mask */
1449 0xff, /* dst_mask */
1450 FALSE
), /* pcrel_offset */
1451 HOWTO2 (R_NDS32_DWARF2_OP2_RELA
,/* type */
1453 1, /* size (0 = byte, 1 = short, 2 = long) */
1455 FALSE
, /* pc_relative */
1457 complain_overflow_dont
,/* complain_on_overflow */
1458 nds32_elf_ignore_reloc
,/* special_function */
1459 "R_NDS32_DWARF2_OP2_RELA",/* name */
1460 FALSE
, /* partial_inplace */
1461 0xffff, /* src_mask */
1462 0xffff, /* dst_mask */
1463 FALSE
), /* pcrel_offset */
1464 HOWTO2 (R_NDS32_DWARF2_LEB_RELA
,/* type */
1466 2, /* size (0 = byte, 1 = short, 2 = long) */
1468 FALSE
, /* pc_relative */
1470 complain_overflow_dont
,/* complain_on_overflow */
1471 nds32_elf_ignore_reloc
,/* special_function */
1472 "R_NDS32_DWARF2_LEB_RELA",/* name */
1473 FALSE
, /* partial_inplace */
1474 0xffffffff, /* src_mask */
1475 0xffffffff, /* dst_mask */
1476 FALSE
), /* pcrel_offset */
1477 HOWTO2 (R_NDS32_UPDATE_TA_RELA
,/* type */
1479 1, /* size (0 = byte, 1 = short, 2 = long) */
1481 FALSE
, /* pc_relative */
1483 complain_overflow_dont
,/* complain_on_overflow */
1484 nds32_elf_ignore_reloc
,/* special_function */
1485 "R_NDS32_UPDATE_TA_RELA",/* name */
1486 FALSE
, /* partial_inplace */
1487 0xffff, /* src_mask */
1488 0xffff, /* dst_mask */
1489 FALSE
), /* pcrel_offset */
1490 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
1491 entry for the symbol. */
1492 HOWTO2 (R_NDS32_9_PLTREL
, /* type */
1494 1, /* size (0 = byte, 1 = short, 2 = long) */
1496 TRUE
, /* pc_relative */
1498 complain_overflow_signed
,/* complain_on_overflow */
1499 bfd_elf_generic_reloc
, /* special_function */
1500 "R_NDS32_9_PLTREL", /* name */
1501 FALSE
, /* partial_inplace */
1502 0xff, /* src_mask */
1503 0xff, /* dst_mask */
1504 TRUE
), /* pcrel_offset */
1505 /* Low 20 bits of PLT symbol offset relative to GOT (GP). */
1506 HOWTO2 (R_NDS32_PLT_GOTREL_LO20
,/* type */
1508 2, /* size (0 = byte, 1 = short, 2 = long) */
1510 FALSE
, /* pc_relative */
1512 complain_overflow_dont
,/* complain_on_overflow */
1513 bfd_elf_generic_reloc
, /* special_function */
1514 "R_NDS32_PLT_GOTREL_LO20",/* name */
1515 FALSE
, /* partial_inplace */
1516 0x000fffff, /* src_mask */
1517 0x000fffff, /* dst_mask */
1518 FALSE
), /* pcrel_offset */
1519 /* low 15 bits of PLT symbol offset relative to GOT (GP) */
1520 HOWTO2 (R_NDS32_PLT_GOTREL_LO15
,/* type */
1522 2, /* size (0 = byte, 1 = short, 2 = long) */
1524 FALSE
, /* pc_relative */
1526 complain_overflow_dont
,/* complain_on_overflow */
1527 bfd_elf_generic_reloc
, /* special_function */
1528 "R_NDS32_PLT_GOTREL_LO15",/* name */
1529 FALSE
, /* partial_inplace */
1530 0x00007fff, /* src_mask */
1531 0x00007fff, /* dst_mask */
1532 FALSE
), /* pcrel_offset */
1533 /* Low 19 bits of PLT symbol offset relative to GOT (GP). */
1534 HOWTO2 (R_NDS32_PLT_GOTREL_LO19
,/* type */
1536 2, /* size (0 = byte, 1 = short, 2 = long) */
1538 FALSE
, /* pc_relative */
1540 complain_overflow_dont
,/* complain_on_overflow */
1541 bfd_elf_generic_reloc
, /* special_function */
1542 "R_NDS32_PLT_GOTREL_LO19",/* name */
1543 FALSE
, /* partial_inplace */
1544 0x0007ffff, /* src_mask */
1545 0x0007ffff, /* dst_mask */
1546 FALSE
), /* pcrel_offset */
1547 HOWTO2 (R_NDS32_GOT_LO15
, /* type */
1549 2, /* size (0 = byte, 1 = short, 2 = long) */
1551 FALSE
, /* pc_relative */
1553 complain_overflow_dont
,/* complain_on_overflow */
1554 bfd_elf_generic_reloc
, /* special_function */
1555 "R_NDS32_GOT_LO15", /* name */
1556 FALSE
, /* partial_inplace */
1557 0x00007fff, /* src_mask */
1558 0x00007fff, /* dst_mask */
1559 FALSE
), /* pcrel_offset */
1560 HOWTO2 (R_NDS32_GOT_LO19
, /* type */
1562 2, /* size (0 = byte, 1 = short, 2 = long) */
1564 FALSE
, /* pc_relative */
1566 complain_overflow_dont
,/* complain_on_overflow */
1567 bfd_elf_generic_reloc
, /* special_function */
1568 "R_NDS32_GOT_LO19", /* name */
1569 FALSE
, /* partial_inplace */
1570 0x0007ffff, /* src_mask */
1571 0x0007ffff, /* dst_mask */
1572 FALSE
), /* pcrel_offset */
1573 HOWTO2 (R_NDS32_GOTOFF_LO15
, /* type */
1575 2, /* size (0 = byte, 1 = short, 2 = long) */
1577 FALSE
, /* pc_relative */
1579 complain_overflow_dont
,/* complain_on_overflow */
1580 bfd_elf_generic_reloc
, /* special_function */
1581 "R_NDS32_GOTOFF_LO15", /* name */
1582 FALSE
, /* partial_inplace */
1583 0x00007fff, /* src_mask */
1584 0x00007fff, /* dst_mask */
1585 FALSE
), /* pcrel_offset */
1586 HOWTO2 (R_NDS32_GOTOFF_LO19
, /* type */
1588 2, /* size (0 = byte, 1 = short, 2 = long) */
1590 FALSE
, /* pc_relative */
1592 complain_overflow_dont
,/* complain_on_overflow */
1593 bfd_elf_generic_reloc
, /* special_function */
1594 "R_NDS32_GOTOFF_LO19", /* name */
1595 FALSE
, /* partial_inplace */
1596 0x0007ffff, /* src_mask */
1597 0x0007ffff, /* dst_mask */
1598 FALSE
), /* pcrel_offset */
1599 /* GOT 15 bits offset. */
1600 HOWTO2 (R_NDS32_GOT15S2_RELA
, /* type */
1602 2, /* size (0 = byte, 1 = short, 2 = long) */
1604 FALSE
, /* pc_relative */
1606 complain_overflow_signed
,/* complain_on_overflow */
1607 bfd_elf_generic_reloc
, /* special_function */
1608 "R_NDS32_GOT15S2_RELA",/* name */
1609 FALSE
, /* partial_inplace */
1610 0x00007fff, /* src_mask */
1611 0x00007fff, /* dst_mask */
1612 FALSE
), /* pcrel_offset */
1613 /* GOT 17 bits offset. */
1614 HOWTO2 (R_NDS32_GOT17S2_RELA
, /* type */
1616 2, /* size (0 = byte, 1 = short, 2 = long) */
1618 FALSE
, /* pc_relative */
1620 complain_overflow_signed
,/* complain_on_overflow */
1621 bfd_elf_generic_reloc
, /* special_function */
1622 "R_NDS32_GOT17S2_RELA",/* name */
1623 FALSE
, /* partial_inplace */
1624 0x0001ffff, /* src_mask */
1625 0x0001ffff, /* dst_mask */
1626 FALSE
), /* pcrel_offset */
1627 /* A 5 bit address. */
1628 HOWTO2 (R_NDS32_5_RELA
, /* type */
1630 1, /* size (0 = byte, 1 = short, 2 = long) */
1632 FALSE
, /* pc_relative */
1634 complain_overflow_signed
,/* complain_on_overflow */
1635 bfd_elf_generic_reloc
, /* special_function */
1636 "R_NDS32_5_RELA", /* name */
1637 FALSE
, /* partial_inplace */
1638 0x1f, /* src_mask */
1639 0x1f, /* dst_mask */
1640 FALSE
), /* pcrel_offset */
1641 HOWTO2 (R_NDS32_10_UPCREL_RELA
,/* type */
1643 1, /* size (0 = byte, 1 = short, 2 = long) */
1645 TRUE
, /* pc_relative */
1647 complain_overflow_unsigned
,/* complain_on_overflow */
1648 bfd_elf_generic_reloc
, /* special_function */
1649 "R_NDS32_10_UPCREL_RELA",/* name */
1650 FALSE
, /* partial_inplace */
1651 0x1ff, /* src_mask */
1652 0x1ff, /* dst_mask */
1653 TRUE
), /* pcrel_offset */
1654 HOWTO2 (R_NDS32_SDA_FP7U2_RELA
,/* type */
1656 1, /* size (0 = byte, 1 = short, 2 = long) */
1658 FALSE
, /* pc_relative */
1660 complain_overflow_unsigned
,/* complain_on_overflow */
1661 bfd_elf_generic_reloc
, /* special_function */
1662 "R_NDS32_SDA_FP7U2_RELA",/* name */
1663 FALSE
, /* partial_inplace */
1664 0x0000007f, /* src_mask */
1665 0x0000007f, /* dst_mask */
1666 FALSE
), /* pcrel_offset */
1667 HOWTO2 (R_NDS32_WORD_9_PCREL_RELA
,/* type */
1669 2, /* size (0 = byte, 1 = short, 2 = long) */
1671 TRUE
, /* pc_relative */
1673 complain_overflow_signed
,/* complain_on_overflow */
1674 bfd_elf_generic_reloc
, /* special_function */
1675 "R_NDS32_WORD_9_PCREL_RELA",/* name */
1676 FALSE
, /* partial_inplace */
1677 0xff, /* src_mask */
1678 0xff, /* dst_mask */
1679 TRUE
), /* pcrel_offset */
1680 HOWTO2 (R_NDS32_25_ABS_RELA
, /* type */
1682 2, /* size (0 = byte, 1 = short, 2 = long) */
1684 FALSE
, /* pc_relative */
1686 complain_overflow_dont
,/* complain_on_overflow */
1687 bfd_elf_generic_reloc
, /* special_function */
1688 "R_NDS32_25_ABS_RELA", /* name */
1689 FALSE
, /* partial_inplace */
1690 0xffffff, /* src_mask */
1691 0xffffff, /* dst_mask */
1692 FALSE
), /* pcrel_offset */
1694 /* A relative 17 bit relocation for ifc, right shifted by 1. */
1695 HOWTO2 (R_NDS32_17IFC_PCREL_RELA
,/* type */
1697 2, /* size (0 = byte, 1 = short, 2 = long) */
1699 TRUE
, /* pc_relative */
1701 complain_overflow_signed
,/* complain_on_overflow */
1702 bfd_elf_generic_reloc
, /* special_function */
1703 "R_NDS32_17IFC_PCREL_RELA",/* name */
1704 FALSE
, /* partial_inplace */
1705 0xffff, /* src_mask */
1706 0xffff, /* dst_mask */
1707 TRUE
), /* pcrel_offset */
1709 /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */
1710 HOWTO2 (R_NDS32_10IFCU_PCREL_RELA
,/* type */
1712 1, /* size (0 = byte, 1 = short, 2 = long) */
1714 TRUE
, /* pc_relative */
1716 complain_overflow_unsigned
,/* complain_on_overflow */
1717 bfd_elf_generic_reloc
, /* special_function */
1718 "R_NDS32_10IFCU_PCREL_RELA",/* name */
1719 FALSE
, /* partial_inplace */
1720 0x1ff, /* src_mask */
1721 0x1ff, /* dst_mask */
1722 TRUE
), /* pcrel_offset */
1724 /* Like R_NDS32_HI20, but referring to the TLS LE entry for the symbol. */
1725 HOWTO2 (R_NDS32_TLS_LE_HI20
, /* type */
1726 12, /* rightshift */
1727 2, /* size (0 = byte, 1 = short, 2 = long) */
1729 FALSE
, /* pc_relative */
1731 complain_overflow_dont
,/* complain_on_overflow */
1732 bfd_elf_generic_reloc
, /* special_function */
1733 "R_NDS32_TLS_LE_HI20", /* name */
1734 FALSE
, /* partial_inplace */
1735 0x000fffff, /* src_mask */
1736 0x000fffff, /* dst_mask */
1737 FALSE
), /* pcrel_offset */
1739 HOWTO2 (R_NDS32_TLS_LE_LO12
, /* type */
1741 2, /* size (0 = byte, 1 = short, 2 = long) */
1743 FALSE
, /* pc_relative */
1745 complain_overflow_dont
,/* complain_on_overflow */
1746 bfd_elf_generic_reloc
, /* special_function */
1747 "R_NDS32_TLS_LE_LO12", /* name */
1748 FALSE
, /* partial_inplace */
1749 0x00000fff, /* src_mask */
1750 0x00000fff, /* dst_mask */
1751 FALSE
), /* pcrel_offset */
1753 /* Like R_NDS32_HI20, but referring to the TLS IE entry for the symbol. */
1754 HOWTO2 (R_NDS32_TLS_IE_HI20
, /* type */
1755 12, /* rightshift */
1756 2, /* size (0 = byte, 1 = short, 2 = long) */
1758 FALSE
, /* pc_relative */
1760 complain_overflow_dont
,/* complain_on_overflow */
1761 bfd_elf_generic_reloc
, /* special_function */
1762 "R_NDS32_TLS_IE_HI20", /* name */
1763 FALSE
, /* partial_inplace */
1764 0x000fffff, /* src_mask */
1765 0x000fffff, /* dst_mask */
1766 FALSE
), /* pcrel_offset */
1768 HOWTO2 (R_NDS32_TLS_IE_LO12S2
,/* type */
1770 2, /* size (0 = byte, 1 = short, 2 = long) */
1772 FALSE
, /* pc_relative */
1774 complain_overflow_dont
,/* complain_on_overflow */
1775 bfd_elf_generic_reloc
, /* special_function */
1776 "R_NDS32_TLS_IE_LO12S2",/* name */
1777 FALSE
, /* partial_inplace */
1778 0x000003ff, /* src_mask */
1779 0x000003ff, /* dst_mask */
1780 FALSE
), /* pcrel_offset */
1782 /* TLS LE TP offset relocation */
1783 HOWTO2 (R_NDS32_TLS_TPOFF
, /* type */
1785 2, /* size (0 = byte, 1 = short, 2 = long) */
1787 FALSE
, /* pc_relative */
1789 complain_overflow_bitfield
,/* complain_on_overflow */
1790 bfd_elf_generic_reloc
, /* special_function */
1791 "R_NDS32_TLS_TPOFF", /* name */
1792 FALSE
, /* partial_inplace */
1793 0xffffffff, /* src_mask */
1794 0xffffffff, /* dst_mask */
1795 FALSE
), /* pcrel_offset */
1797 /* A 20 bit address. */
1798 HOWTO2 (R_NDS32_TLS_LE_20
, /* type */
1800 2, /* size (0 = byte, 1 = short, 2 = long) */
1802 FALSE
, /* pc_relative */
1804 complain_overflow_signed
,/* complain_on_overflow */
1805 bfd_elf_generic_reloc
, /* special_function */
1806 "R_NDS32_TLS_LE_20", /* name */
1807 FALSE
, /* partial_inplace */
1808 0xfffff, /* src_mask */
1809 0xfffff, /* dst_mask */
1810 FALSE
), /* pcrel_offset */
1812 HOWTO2 (R_NDS32_TLS_LE_15S0
, /* type */
1814 2, /* size (0 = byte, 1 = short, 2 = long) */
1816 FALSE
, /* pc_relative */
1818 complain_overflow_signed
,/* complain_on_overflow */
1819 bfd_elf_generic_reloc
, /* special_function */
1820 "R_NDS32_TLS_LE_15S0", /* name */
1821 FALSE
, /* partial_inplace */
1822 0x7fff, /* src_mask */
1823 0x7fff, /* dst_mask */
1824 FALSE
), /* pcrel_offset */
1825 HOWTO2 (R_NDS32_TLS_LE_15S1
, /* type */
1827 2, /* size (0 = byte, 1 = short, 2 = long) */
1829 FALSE
, /* pc_relative */
1831 complain_overflow_signed
,/* complain_on_overflow */
1832 bfd_elf_generic_reloc
, /* special_function */
1833 "R_NDS32_TLS_LE_15S1", /* name */
1834 FALSE
, /* partial_inplace */
1835 0x7fff, /* src_mask */
1836 0x7fff, /* dst_mask */
1837 FALSE
), /* pcrel_offset */
1838 HOWTO2 (R_NDS32_TLS_LE_15S2
, /* type */
1840 2, /* size (0 = byte, 1 = short, 2 = long) */
1842 FALSE
, /* pc_relative */
1844 complain_overflow_signed
,/* complain_on_overflow */
1845 bfd_elf_generic_reloc
, /* special_function */
1846 "R_NDS32_TLS_LE_15S2", /* name */
1847 FALSE
, /* partial_inplace */
1848 0x7fff, /* src_mask */
1849 0x7fff, /* dst_mask */
1850 FALSE
), /* pcrel_offset */
1852 /* Relax hint for unconditional call sequence */
1853 HOWTO2 (R_NDS32_LONGCALL4
, /* type */
1855 2, /* size (0 = byte, 1 = short, 2 = long) */
1857 FALSE
, /* pc_relative */
1859 complain_overflow_dont
,/* complain_on_overflow */
1860 nds32_elf_ignore_reloc
,/* special_function */
1861 "R_NDS32_LONGCALL4", /* name */
1862 FALSE
, /* partial_inplace */
1863 0xffffffff, /* src_mask */
1864 0xffffffff, /* dst_mask */
1865 FALSE
), /* pcrel_offset */
1867 /* Relax hint for conditional call sequence. */
1868 HOWTO2 (R_NDS32_LONGCALL5
, /* type */
1870 2, /* size (0 = byte, 1 = short, 2 = long) */
1872 FALSE
, /* pc_relative */
1874 complain_overflow_dont
,/* complain_on_overflow */
1875 nds32_elf_ignore_reloc
,/* special_function */
1876 "R_NDS32_LONGCALL5", /* name */
1877 FALSE
, /* partial_inplace */
1878 0xffffffff, /* src_mask */
1879 0xffffffff, /* dst_mask */
1880 FALSE
), /* pcrel_offset */
1882 /* Relax hint for conditional call sequence. */
1883 HOWTO2 (R_NDS32_LONGCALL6
, /* type */
1885 2, /* size (0 = byte, 1 = short, 2 = long) */
1887 FALSE
, /* pc_relative */
1889 complain_overflow_dont
,/* complain_on_overflow */
1890 nds32_elf_ignore_reloc
,/* special_function */
1891 "R_NDS32_LONGCALL6", /* name */
1892 FALSE
, /* partial_inplace */
1893 0xffffffff, /* src_mask */
1894 0xffffffff, /* dst_mask */
1895 FALSE
), /* pcrel_offset */
1897 /* Relax hint for unconditional branch sequence. */
1898 HOWTO2 (R_NDS32_LONGJUMP4
, /* type */
1900 2, /* size (0 = byte, 1 = short, 2 = long) */
1902 FALSE
, /* pc_relative */
1904 complain_overflow_dont
,/* complain_on_overflow */
1905 nds32_elf_ignore_reloc
,/* special_function */
1906 "R_NDS32_LONGJUMP4", /* name */
1907 FALSE
, /* partial_inplace */
1908 0xffffffff, /* src_mask */
1909 0xffffffff, /* dst_mask */
1910 FALSE
), /* pcrel_offset */
1912 /* Relax hint for conditional branch sequence. */
1913 HOWTO2 (R_NDS32_LONGJUMP5
, /* type */
1915 2, /* size (0 = byte, 1 = short, 2 = long) */
1917 FALSE
, /* pc_relative */
1919 complain_overflow_dont
,/* complain_on_overflow */
1920 nds32_elf_ignore_reloc
,/* special_function */
1921 "R_NDS32_LONGJUMP5", /* name */
1922 FALSE
, /* partial_inplace */
1923 0xffffffff, /* src_mask */
1924 0xffffffff, /* dst_mask */
1925 FALSE
), /* pcrel_offset */
1927 /* Relax hint for conditional branch sequence. */
1928 HOWTO2 (R_NDS32_LONGJUMP6
, /* type */
1930 2, /* size (0 = byte, 1 = short, 2 = long) */
1932 FALSE
, /* pc_relative */
1934 complain_overflow_dont
,/* complain_on_overflow */
1935 nds32_elf_ignore_reloc
,/* special_function */
1936 "R_NDS32_LONGJUMP6", /* name */
1937 FALSE
, /* partial_inplace */
1938 0xffffffff, /* src_mask */
1939 0xffffffff, /* dst_mask */
1940 FALSE
), /* pcrel_offset */
1942 /* Relax hint for conditional branch sequence. */
1943 HOWTO2 (R_NDS32_LONGJUMP7
, /* type */
1945 2, /* size (0 = byte, 1 = short, 2 = long) */
1947 FALSE
, /* pc_relative */
1949 complain_overflow_dont
,/* complain_on_overflow */
1950 nds32_elf_ignore_reloc
,/* special_function */
1951 "R_NDS32_LONGJUMP7", /* name */
1952 FALSE
, /* partial_inplace */
1953 0xffffffff, /* src_mask */
1954 0xffffffff, /* dst_mask */
1955 FALSE
), /* pcrel_offset */
1957 HOWTO2 (R_NDS32_TLS_IE_LO12
, /* type */
1959 2, /* size (0 = byte, 1 = short, 2 = long) */
1961 FALSE
, /* pc_relative */
1963 complain_overflow_dont
,/* complain_on_overflow */
1964 bfd_elf_generic_reloc
, /* special_function */
1965 "R_NDS32_TLS_IE_LO12", /* name */
1966 FALSE
, /* partial_inplace */
1967 0x00000fff, /* src_mask */
1968 0x00000fff, /* dst_mask */
1969 FALSE
), /* pcrel_offset */
1971 /* Like R_NDS32_HI20, but referring to the TLS IE (PIE)
1972 entry for the symbol. */
1973 HOWTO2 (R_NDS32_TLS_IEGP_HI20
,/* type */
1974 12, /* rightshift */
1975 2, /* size (0 = byte, 1 = short, 2 = long) */
1977 FALSE
, /* pc_relative */
1979 complain_overflow_dont
,/* complain_on_overflow */
1980 bfd_elf_generic_reloc
, /* special_function */
1981 "R_NDS32_TLS_IEGP_HI20",/* name */
1982 FALSE
, /* partial_inplace */
1983 0x000fffff, /* src_mask */
1984 0x000fffff, /* dst_mask */
1985 FALSE
), /* pcrel_offset */
1987 HOWTO2 (R_NDS32_TLS_IEGP_LO12
,/* type */
1989 2, /* size (0 = byte, 1 = short, 2 = long) */
1991 FALSE
, /* pc_relative */
1993 complain_overflow_dont
,/* complain_on_overflow */
1994 bfd_elf_generic_reloc
, /* special_function */
1995 "R_NDS32_TLS_IEGP_LO12",/* name */
1996 FALSE
, /* partial_inplace */
1997 0x00000fff, /* src_mask */
1998 0x00000fff, /* dst_mask */
1999 FALSE
), /* pcrel_offset */
2001 HOWTO2 (R_NDS32_TLS_IEGP_LO12S2
,/* type */
2003 2, /* size (0 = byte, 1 = short, 2 = long) */
2005 FALSE
, /* pc_relative */
2007 complain_overflow_dont
,/* complain_on_overflow */
2008 bfd_elf_generic_reloc
, /* special_function */
2009 "R_NDS32_TLS_IEGP_LO12S2",/* name */
2010 FALSE
, /* partial_inplace */
2011 0x000003ff, /* src_mask */
2012 0x000003ff, /* dst_mask */
2013 FALSE
), /* pcrel_offset */
2015 /* TLS description relocation */
2016 HOWTO2 (R_NDS32_TLS_DESC
, /* type */
2017 12, /* rightshift */
2018 2, /* size (0 = byte, 1 = short, 2 = long) */
2020 FALSE
, /* pc_relative */
2022 complain_overflow_dont
,/* complain_on_overflow */
2023 nds32_elf_hi20_reloc
, /* special_function */
2024 "R_NDS32_TLS_DESC_HI20",/* name */
2025 FALSE
, /* partial_inplace */
2026 0x000fffff, /* src_mask */
2027 0x000fffff, /* dst_mask */
2028 FALSE
), /* pcrel_offset */
2030 /* TLS GD/LD description offset high part. */
2031 HOWTO2 (R_NDS32_TLS_DESC_HI20
,/* type */
2032 12, /* rightshift */
2033 2, /* size (0 = byte, 1 = short, 2 = long) */
2035 FALSE
, /* pc_relative */
2037 complain_overflow_dont
,/* complain_on_overflow */
2038 nds32_elf_hi20_reloc
, /* special_function */
2039 "R_NDS32_TLS_DESC_HI20",/* name */
2040 FALSE
, /* partial_inplace */
2041 0x000fffff, /* src_mask */
2042 0x000fffff, /* dst_mask */
2043 FALSE
), /* pcrel_offset */
2045 /* TLS GD/LD description offset low part. */
2046 HOWTO2 (R_NDS32_TLS_DESC_LO12
,/* type */
2048 2, /* size (0 = byte, 1 = short, 2 = long) */
2050 FALSE
, /* pc_relative */
2052 complain_overflow_dont
,/* complain_on_overflow */
2053 nds32_elf_lo12_reloc
, /* special_function */
2054 "R_NDS32_TLS_DESC_LO12",/* name */
2055 FALSE
, /* partial_inplace */
2056 0x00000fff, /* src_mask */
2057 0x00000fff, /* dst_mask */
2058 FALSE
), /* pcrel_offset */
2060 /* TLS GD/LD description offset set (movi). */
2061 HOWTO2 (R_NDS32_TLS_DESC_20
, /* type */
2063 2, /* size (0 = byte, 1 = short, 2 = long) */
2065 FALSE
, /* pc_relative */
2067 complain_overflow_signed
,/* complain_on_overflow */
2068 bfd_elf_generic_reloc
, /* special_function */
2069 "R_NDS32_TLS_DESC_20", /* name */
2070 FALSE
, /* partial_inplace */
2071 0x000fffff, /* src_mask */
2072 0x000fffff, /* dst_mask */
2073 FALSE
), /* pcrel_offset */
2075 /* TLS GD/LD description offset set (lwi.gp). */
2076 HOWTO2 (R_NDS32_TLS_DESC_SDA17S2
,/* type */
2078 2, /* size (0 = byte, 1 = short, 2 = long) */
2080 FALSE
, /* pc_relative */
2082 complain_overflow_signed
,/* complain_on_overflow */
2083 bfd_elf_generic_reloc
, /* special_function */
2084 "R_NDS32_TLS_DESC_SDA17S2",/* name */
2085 FALSE
, /* partial_inplace */
2086 0x0001ffff, /* src_mask */
2087 0x0001ffff, /* dst_mask */
2088 FALSE
), /* pcrel_offset */
2091 /* Relocations used for relaxation. */
2092 #define HOWTO3(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC) \
2093 [C-R_NDS32_RELAX_ENTRY] = HOWTO(C, R, S, B, P, BI, O, SF, NAME, INPLACE, MASKSRC, MASKDST, PC)
2095 static reloc_howto_type nds32_elf_relax_howto_table
[] = {
2096 HOWTO3 (R_NDS32_RELAX_ENTRY
, /* type */
2098 2, /* size (0 = byte, 1 = short, 2 = long) */
2100 FALSE
, /* pc_relative */
2102 complain_overflow_dont
,/* complain_on_overflow */
2103 nds32_elf_ignore_reloc
,/* special_function */
2104 "R_NDS32_RELAX_ENTRY", /* name */
2105 FALSE
, /* partial_inplace */
2106 0xffffffff, /* src_mask */
2107 0xffffffff, /* dst_mask */
2108 FALSE
), /* pcrel_offset */
2109 HOWTO3 (R_NDS32_GOT_SUFF
, /* type */
2111 2, /* size (0 = byte, 1 = short, 2 = long) */
2113 FALSE
, /* pc_relative */
2115 complain_overflow_dont
,/* complain_on_overflow */
2116 nds32_elf_ignore_reloc
,/* special_function */
2117 "R_NDS32_GOT_SUFF", /* name */
2118 FALSE
, /* partial_inplace */
2119 0xffffffff, /* src_mask */
2120 0xffffffff, /* dst_mask */
2121 FALSE
), /* pcrel_offset */
2122 HOWTO3 (R_NDS32_GOTOFF_SUFF
, /* type */
2124 2, /* size (0 = byte, 1 = short, 2 = long) */
2126 FALSE
, /* pc_relative */
2128 complain_overflow_bitfield
,/* complain_on_overflow */
2129 nds32_elf_ignore_reloc
,/* special_function */
2130 "R_NDS32_GOTOFF_SUFF", /* name */
2131 FALSE
, /* partial_inplace */
2132 0xffffffff, /* src_mask */
2133 0xffffffff, /* dst_mask */
2134 FALSE
), /* pcrel_offset */
2135 HOWTO3 (R_NDS32_PLT_GOT_SUFF
, /* type */
2137 2, /* size (0 = byte, 1 = short, 2 = long) */
2139 FALSE
, /* pc_relative */
2141 complain_overflow_dont
,/* complain_on_overflow */
2142 nds32_elf_ignore_reloc
,/* special_function */
2143 "R_NDS32_PLT_GOT_SUFF",/* name */
2144 FALSE
, /* partial_inplace */
2145 0xffffffff, /* src_mask */
2146 0xffffffff, /* dst_mask */
2147 FALSE
), /* pcrel_offset */
2148 HOWTO3 (R_NDS32_MULCALL_SUFF
, /* type */
2150 2, /* size (0 = byte, 1 = short, 2 = long) */
2152 FALSE
, /* pc_relative */
2154 complain_overflow_dont
,/* complain_on_overflow */
2155 nds32_elf_ignore_reloc
,/* special_function */
2156 "R_NDS32_MULCALL_SUFF",/* name */
2157 FALSE
, /* partial_inplace */
2158 0xffffffff, /* src_mask */
2159 0xffffffff, /* dst_mask */
2160 FALSE
), /* pcrel_offset */
2161 HOWTO3 (R_NDS32_PTR
, /* type */
2163 2, /* size (0 = byte, 1 = short, 2 = long) */
2165 FALSE
, /* pc_relative */
2167 complain_overflow_dont
,/* complain_on_overflow */
2168 nds32_elf_ignore_reloc
,/* special_function */
2169 "R_NDS32_PTR", /* name */
2170 FALSE
, /* partial_inplace */
2171 0xffffffff, /* src_mask */
2172 0xffffffff, /* dst_mask */
2173 FALSE
), /* pcrel_offset */
2174 HOWTO3 (R_NDS32_PTR_COUNT
, /* type */
2176 2, /* size (0 = byte, 1 = short, 2 = long) */
2178 FALSE
, /* pc_relative */
2180 complain_overflow_dont
,/* complain_on_overflow */
2181 nds32_elf_ignore_reloc
,/* special_function */
2182 "R_NDS32_PTR_COUNT", /* name */
2183 FALSE
, /* partial_inplace */
2184 0xffffffff, /* src_mask */
2185 0xffffffff, /* dst_mask */
2186 FALSE
), /* pcrel_offset */
2187 HOWTO3 (R_NDS32_PTR_RESOLVED
, /* type */
2189 2, /* size (0 = byte, 1 = short, 2 = long) */
2191 FALSE
, /* pc_relative */
2193 complain_overflow_dont
,/* complain_on_overflow */
2194 nds32_elf_ignore_reloc
,/* special_function */
2195 "R_NDS32_PTR_RESOLVED",/* name */
2196 FALSE
, /* partial_inplace */
2197 0xffffffff, /* src_mask */
2198 0xffffffff, /* dst_mask */
2199 FALSE
), /* pcrel_offset */
2200 HOWTO3 (R_NDS32_PLTBLOCK
, /* type */
2202 2, /* size (0 = byte, 1 = short, 2 = long) */
2204 FALSE
, /* pc_relative */
2206 complain_overflow_dont
,/* complain_on_overflow */
2207 nds32_elf_ignore_reloc
,/* special_function */
2208 "R_NDS32_PLTBLOCK", /* name */
2209 FALSE
, /* partial_inplace */
2210 0xffffffff, /* src_mask */
2211 0xffffffff, /* dst_mask */
2212 FALSE
), /* pcrel_offset */
2213 HOWTO3 (R_NDS32_RELAX_REGION_BEGIN
,/* type */
2215 2, /* size (0 = byte, 1 = short, 2 = long) */
2217 FALSE
, /* pc_relative */
2219 complain_overflow_dont
,/* complain_on_overflow */
2220 nds32_elf_ignore_reloc
,/* special_function */
2221 "R_NDS32_RELAX_REGION_BEGIN",/* name */
2222 FALSE
, /* partial_inplace */
2223 0xffffffff, /* src_mask */
2224 0xffffffff, /* dst_mask */
2225 FALSE
), /* pcrel_offset */
2226 HOWTO3 (R_NDS32_RELAX_REGION_END
,/* type */
2228 2, /* size (0 = byte, 1 = short, 2 = long) */
2230 FALSE
, /* pc_relative */
2232 complain_overflow_dont
,/* complain_on_overflow */
2233 nds32_elf_ignore_reloc
,/* special_function */
2234 "R_NDS32_RELAX_REGION_END",/* name */
2235 FALSE
, /* partial_inplace */
2236 0xffffffff, /* src_mask */
2237 0xffffffff, /* dst_mask */
2238 FALSE
), /* pcrel_offset */
2239 HOWTO3 (R_NDS32_MINUEND
, /* type */
2241 2, /* size (0 = byte, 1 = short, 2 = long) */
2243 FALSE
, /* pc_relative */
2245 complain_overflow_dont
,/* complain_on_overflow */
2246 nds32_elf_ignore_reloc
,/* special_function */
2247 "R_NDS32_MINUEND", /* name */
2248 FALSE
, /* partial_inplace */
2249 0xffffffff, /* src_mask */
2250 0xffffffff, /* dst_mask */
2251 FALSE
), /* pcrel_offset */
2252 HOWTO3 (R_NDS32_SUBTRAHEND
, /* type */
2254 2, /* size (0 = byte, 1 = short, 2 = long) */
2256 FALSE
, /* pc_relative */
2258 complain_overflow_dont
,/* complain_on_overflow */
2259 nds32_elf_ignore_reloc
,/* special_function */
2260 "R_NDS32_SUBTRAHEND", /* name */
2261 FALSE
, /* partial_inplace */
2262 0xffffffff, /* src_mask */
2263 0xffffffff, /* dst_mask */
2264 FALSE
), /* pcrel_offset */
2265 HOWTO3 (R_NDS32_DIFF8
, /* type */
2267 0, /* size (0 = byte, 1 = short, 2 = long) */
2269 FALSE
, /* pc_relative */
2271 complain_overflow_dont
,/* complain_on_overflow */
2272 nds32_elf_ignore_reloc
,/* special_function */
2273 "R_NDS32_DIFF8", /* name */
2274 FALSE
, /* partial_inplace */
2275 0x000000ff, /* src_mask */
2276 0x000000ff, /* dst_mask */
2277 FALSE
), /* pcrel_offset */
2278 HOWTO3 (R_NDS32_DIFF16
, /* type */
2280 1, /* size (0 = byte, 1 = short, 2 = long) */
2282 FALSE
, /* pc_relative */
2284 complain_overflow_dont
,/* complain_on_overflow */
2285 nds32_elf_ignore_reloc
,/* special_function */
2286 "R_NDS32_DIFF16", /* name */
2287 FALSE
, /* partial_inplace */
2288 0x0000ffff, /* src_mask */
2289 0x0000ffff, /* dst_mask */
2290 FALSE
), /* pcrel_offset */
2291 HOWTO3 (R_NDS32_DIFF32
, /* type */
2293 2, /* size (0 = byte, 1 = short, 2 = long) */
2295 FALSE
, /* pc_relative */
2297 complain_overflow_dont
,/* complain_on_overflow */
2298 nds32_elf_ignore_reloc
,/* special_function */
2299 "R_NDS32_DIFF32", /* name */
2300 FALSE
, /* partial_inplace */
2301 0xffffffff, /* src_mask */
2302 0xffffffff, /* dst_mask */
2303 FALSE
), /* pcrel_offset */
2304 HOWTO3 (R_NDS32_DIFF_ULEB128
, /* type */
2306 0, /* size (0 = byte, 1 = short, 2 = long) */
2308 FALSE
, /* pc_relative */
2310 complain_overflow_dont
,/* complain_on_overflow */
2311 nds32_elf_ignore_reloc
,/* special_function */
2312 "R_NDS32_DIFF_ULEB128",/* name */
2313 FALSE
, /* partial_inplace */
2314 0xffffffff, /* src_mask */
2315 0xffffffff, /* dst_mask */
2316 FALSE
), /* pcrel_offset */
2317 HOWTO3 (R_NDS32_DATA
, /* type */
2319 2, /* size (0 = byte, 1 = short, 2 = long) */
2321 FALSE
, /* pc_relative */
2323 complain_overflow_dont
,/* complain_on_overflow */
2324 nds32_elf_ignore_reloc
,/* special_function */
2325 "R_NDS32_DATA", /* name */
2326 FALSE
, /* partial_inplace */
2327 0xffffffff, /* src_mask */
2328 0xffffffff, /* dst_mask */
2329 FALSE
), /* pcrel_offset */
2330 HOWTO3 (R_NDS32_TRAN
, /* type */
2332 2, /* size (0 = byte, 1 = short, 2 = long) */
2334 FALSE
, /* pc_relative */
2336 complain_overflow_dont
,/* complain_on_overflow */
2337 nds32_elf_ignore_reloc
,/* special_function */
2338 "R_NDS32_TRAN", /* name */
2339 FALSE
, /* partial_inplace */
2340 0xffffffff, /* src_mask */
2341 0xffffffff, /* dst_mask */
2342 FALSE
), /* pcrel_offset */
2343 HOWTO3 (R_NDS32_TLS_LE_ADD
, /* type */
2345 2, /* size (0 = byte, 1 = short, 2 = long) */
2347 FALSE
, /* pc_relative */
2349 complain_overflow_dont
,/* complain_on_overflow */
2350 nds32_elf_ignore_reloc
,/* special_function */
2351 "R_NDS32_TLS_LE_ADD", /* name */
2352 FALSE
, /* partial_inplace */
2353 0xffffffff, /* src_mask */
2354 0xffffffff, /* dst_mask */
2355 FALSE
), /* pcrel_offset */
2356 HOWTO3 (R_NDS32_TLS_LE_LS
, /* type */
2358 2, /* size (0 = byte, 1 = short, 2 = long) */
2360 FALSE
, /* pc_relative */
2362 complain_overflow_dont
,/* complain_on_overflow */
2363 nds32_elf_ignore_reloc
,/* special_function */
2364 "R_NDS32_TLS_LE_LS", /* name */
2365 FALSE
, /* partial_inplace */
2366 0xffffffff, /* src_mask */
2367 0xffffffff, /* dst_mask */
2368 FALSE
), /* pcrel_offset */
2369 HOWTO3 (R_NDS32_EMPTY
, /* type */
2371 2, /* size (0 = byte, 1 = short, 2 = long) */
2373 FALSE
, /* pc_relative */
2375 complain_overflow_dont
,/* complain_on_overflow */
2376 nds32_elf_ignore_reloc
,/* special_function */
2377 "R_NDS32_EMPTY", /* name */
2378 FALSE
, /* partial_inplace */
2379 0xffffffff, /* src_mask */
2380 0xffffffff, /* dst_mask */
2381 FALSE
), /* pcrel_offset */
2382 /* TLS GD/LD description address base addition. */
2383 HOWTO3 (R_NDS32_TLS_DESC_ADD
, /* type */
2385 2, /* size (0 = byte, 1 = short, 2 = long) */
2387 FALSE
, /* pc_relative */
2389 complain_overflow_dont
,/* complain_on_overflow */
2390 nds32_elf_ignore_reloc
,/* special_function */
2391 "R_NDS32_TLS_DESC_ADD",/* name */
2392 FALSE
, /* partial_inplace */
2393 0xffffffff, /* src_mask */
2394 0xffffffff, /* dst_mask */
2395 FALSE
), /* pcrel_offset */
2396 /* TLS GD/LD description function load. */
2397 HOWTO3 (R_NDS32_TLS_DESC_FUNC
,/* type */
2399 2, /* size (0 = byte, 1 = short, 2 = long) */
2401 FALSE
, /* pc_relative */
2403 complain_overflow_dont
,/* complain_on_overflow */
2404 nds32_elf_ignore_reloc
,/* special_function */
2405 "R_NDS32_TLS_DESC_FUNC",/* name */
2406 FALSE
, /* partial_inplace */
2407 0xffffffff, /* src_mask */
2408 0xffffffff, /* dst_mask */
2409 FALSE
), /* pcrel_offset */
2410 /* TLS DESC resolve function call. */
2411 HOWTO3 (R_NDS32_TLS_DESC_CALL
,/* type */
2413 2, /* size (0 = byte, 1 = short, 2 = long) */
2415 FALSE
, /* pc_relative */
2417 complain_overflow_dont
,/* complain_on_overflow */
2418 nds32_elf_ignore_reloc
,/* special_function */
2419 "R_NDS32_TLS_DESC_CALL",/* name */
2420 FALSE
, /* partial_inplace */
2421 0xffffffff, /* src_mask */
2422 0xffffffff, /* dst_mask */
2423 FALSE
), /* pcrel_offset */
2424 /* TLS DESC variable access. */
2425 HOWTO3 (R_NDS32_TLS_DESC_MEM
, /* type */
2427 2, /* size (0 = byte, 1 = short, 2 = long) */
2429 FALSE
, /* pc_relative */
2431 complain_overflow_dont
,/* complain_on_overflow */
2432 nds32_elf_ignore_reloc
,/* special_function */
2433 "R_NDS32_TLS_DESC_MEM",/* name */
2434 FALSE
, /* partial_inplace */
2435 0xffffffff, /* src_mask */
2436 0xffffffff, /* dst_mask */
2437 FALSE
), /* pcrel_offset */
2438 /* TLS GD/LD description mark (@tlsdec). */
2439 HOWTO3 (R_NDS32_RELAX_REMOVE
, /* type */
2441 2, /* size (0 = byte, 1 = short, 2 = long) */
2443 FALSE
, /* pc_relative */
2445 complain_overflow_dont
,/* complain_on_overflow */
2446 nds32_elf_ignore_reloc
,/* special_function */
2447 "R_NDS32_REMOVE", /* name */
2448 FALSE
, /* partial_inplace */
2449 0xffffffff, /* src_mask */
2450 0xffffffff, /* dst_mask */
2451 FALSE
), /* pcrel_offset */
2452 /* TLS GD/LD description mark (@tlsdec). */
2453 HOWTO3 (R_NDS32_RELAX_GROUP
, /* type */
2455 2, /* size (0 = byte, 1 = short, 2 = long) */
2457 FALSE
, /* pc_relative */
2459 complain_overflow_dont
,/* complain_on_overflow */
2460 nds32_elf_ignore_reloc
,/* special_function */
2461 "R_NDS32_GROUP", /* name */
2462 FALSE
, /* partial_inplace */
2463 0xffffffff, /* src_mask */
2464 0xffffffff, /* dst_mask */
2465 FALSE
), /* pcrel_offset */
2466 HOWTO3 (R_NDS32_TLS_IEGP_LW
, /* type */
2468 2, /* size (0 = byte, 1 = short, 2 = long) */
2470 FALSE
, /* pc_relative */
2472 complain_overflow_dont
,/* complain_on_overflow */
2473 nds32_elf_ignore_reloc
,/* special_function */
2474 "R_NDS32_TLS_IEGP_LW", /* name */
2475 FALSE
, /* partial_inplace */
2476 0xffffffff, /* src_mask */
2477 0xffffffff, /* dst_mask */
2478 FALSE
), /* pcrel_offset */
2479 /* LA and FLSI relaxation. */
2480 HOWTO3 (R_NDS32_LSI
, /* type */
2482 2, /* size (0 = byte, 1 = short, 2 = long) */
2484 FALSE
, /* pc_relative */
2486 complain_overflow_dont
,/* complain_on_overflow */
2487 nds32_elf_ignore_reloc
,/* special_function */
2488 "R_NDS32_LSI", /* name */
2489 FALSE
, /* partial_inplace */
2490 0xffffffff, /* src_mask */
2491 0xffffffff, /* dst_mask */
2495 static unsigned long dl_tlsdesc_lazy_trampoline
[] =
2497 0x46200000, /* sethi $r2,#0x0 */
2498 0x58210000, /* ori $r2,$r2,#0x0 */
2499 0x40217400, /* add $r2,$r2,$gp */
2500 0x04210000, /* lwi $r2,[$r2+#0x0] */
2501 0x46300000, /* sethi $r3,#0x0 */
2502 0x58318000, /* ori $r3,$r3,#0x0 */
2503 0x4031f400, /* add $r3,$r3,$gp */
2504 0x4a000800, /* jr $r2 */
2508 nds32_put_trampoline (void *contents
, const unsigned long *template,
2513 for (ix
= 0; ix
!= count
; ix
++)
2515 unsigned long insn
= template[ix
];
2516 bfd_putb32 (insn
, (char *) contents
+ ix
* 4);
2520 /* nds32_insertion_sort sorts an array with nmemb elements of size size.
2521 This prototype is the same as qsort (). */
2524 nds32_insertion_sort (void *base
, size_t nmemb
, size_t size
,
2525 int (*compar
) (const void *lhs
, const void *rhs
))
2527 char *ptr
= (char *) base
;
2529 char tmp
[sizeof (Elf_Internal_Rela
)];
2531 BFD_ASSERT (size
<= sizeof (tmp
));
2533 /* If i is less than j, i is inserted before j.
2535 |---- j ----- i --------------|
2540 for (i
= 1; i
< (int) nmemb
; i
++)
2542 for (j
= (i
- 1); j
>= 0; j
--)
2543 if (compar (ptr
+ i
* size
, ptr
+ j
* size
) >= 0)
2549 continue; /* i is in order. */
2551 memcpy (tmp
, ptr
+ i
* size
, size
);
2552 memmove (ptr
+ (j
+ 1) * size
, ptr
+ j
* size
, (i
- j
) * size
);
2553 memcpy (ptr
+ j
* size
, tmp
, size
);
2557 /* Sort relocation by r_offset.
2559 We didn't use qsort () in stdlib, because quick-sort is not a stable sorting
2560 algorithm. Relocations at the same r_offset must keep their order.
2561 For example, RELAX_ENTRY must be the very first relocation entry.
2563 Currently, this function implements insertion-sort.
2565 FIXME: If we already sort them in assembler, why bother sort them
2569 compar_reloc (const void *lhs
, const void *rhs
)
2571 const Elf_Internal_Rela
*l
= (const Elf_Internal_Rela
*) lhs
;
2572 const Elf_Internal_Rela
*r
= (const Elf_Internal_Rela
*) rhs
;
2574 if (l
->r_offset
> r
->r_offset
)
2576 else if (l
->r_offset
== r
->r_offset
)
2582 /* Functions listed below are only used for old relocs.
2583 nds32_elf_9_pcrel_reloc
2584 nds32_elf_do_9_pcrel_reloc
2585 nds32_elf_hi20_reloc
2586 nds32_elf_relocate_hi20
2587 nds32_elf_lo12_reloc
2588 nds32_elf_sda15_reloc
2589 nds32_elf_generic_reloc. */
2591 /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */
2593 static bfd_reloc_status_type
2594 nds32_elf_9_pcrel_reloc (bfd
* abfd
,
2595 arelent
* reloc_entry
,
2598 asection
* input_section
,
2600 char ** error_message ATTRIBUTE_UNUSED
)
2602 /* This part is from bfd_elf_generic_reloc. */
2603 if (output_bfd
!= (bfd
*) NULL
2604 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2605 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2607 reloc_entry
->address
+= input_section
->output_offset
;
2608 return bfd_reloc_ok
;
2611 if (output_bfd
!= NULL
)
2613 /* FIXME: See bfd_perform_relocation. Is this right? */
2614 return bfd_reloc_continue
;
2617 return nds32_elf_do_9_pcrel_reloc (abfd
, reloc_entry
->howto
,
2619 data
, reloc_entry
->address
,
2622 + symbol
->section
->output_section
->vma
2623 + symbol
->section
->output_offset
),
2624 reloc_entry
->addend
);
2627 /* Utility to actually perform an R_NDS32_9_PCREL reloc. */
2628 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
2630 static bfd_reloc_status_type
2631 nds32_elf_do_9_pcrel_reloc (bfd
* abfd
,
2632 reloc_howto_type
* howto
,
2633 asection
* input_section
,
2636 asection
* symbol_section ATTRIBUTE_UNUSED
,
2637 bfd_vma symbol_value
,
2640 bfd_signed_vma relocation
;
2642 bfd_reloc_status_type status
;
2644 /* Sanity check the address (offset in section). */
2645 if (offset
> bfd_get_section_limit (abfd
, input_section
))
2646 return bfd_reloc_outofrange
;
2648 relocation
= symbol_value
+ addend
;
2649 /* Make it pc relative. */
2650 relocation
-= (input_section
->output_section
->vma
2651 + input_section
->output_offset
);
2652 /* These jumps mask off the lower two bits of the current address
2653 before doing pcrel calculations. */
2654 relocation
-= (offset
& -(bfd_vma
) 2);
2656 if (relocation
< -ACCURATE_8BIT_S1
|| relocation
>= ACCURATE_8BIT_S1
)
2657 status
= bfd_reloc_overflow
;
2659 status
= bfd_reloc_ok
;
2661 x
= bfd_getb16 (data
+ offset
);
2663 relocation
>>= howto
->rightshift
;
2664 relocation
<<= howto
->bitpos
;
2665 x
= (x
& ~howto
->dst_mask
)
2666 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
);
2668 bfd_putb16 ((bfd_vma
) x
, data
+ offset
);
2673 /* Handle the R_NDS32_HI20_[SU]LO relocs.
2674 HI20_SLO is for the add3 and load/store with displacement instructions.
2675 HI20 is for the or3 instruction.
2676 For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to
2677 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
2678 we must add one to the high 16 bytes (which will get subtracted off when
2679 the low 16 bits are added).
2680 These relocs have to be done in combination with an R_NDS32_LO12 reloc
2681 because there is a carry from the LO12 to the HI20. Here we just save
2682 the information we need; we do the actual relocation when we see the LO12.
2683 This code is copied from the elf32-mips.c. We also support an arbitrary
2684 number of HI20 relocs to be associated with a single LO12 reloc. The
2685 assembler sorts the relocs to ensure each HI20 immediately precedes its
2686 LO12. However if there are multiple copies, the assembler may not find
2687 the real LO12 so it picks the first one it finds. */
2691 struct nds32_hi20
*next
;
2696 static struct nds32_hi20
*nds32_hi20_list
;
2698 static bfd_reloc_status_type
2699 nds32_elf_hi20_reloc (bfd
*abfd ATTRIBUTE_UNUSED
,
2700 arelent
*reloc_entry
,
2703 asection
*input_section
,
2705 char **error_message ATTRIBUTE_UNUSED
)
2707 bfd_reloc_status_type ret
;
2709 struct nds32_hi20
*n
;
2711 /* This part is from bfd_elf_generic_reloc.
2712 If we're relocating, and this an external symbol, we don't want
2713 to change anything. */
2714 if (output_bfd
!= (bfd
*) NULL
2715 && (symbol
->flags
& BSF_SECTION_SYM
) == 0 && reloc_entry
->addend
== 0)
2717 reloc_entry
->address
+= input_section
->output_offset
;
2718 return bfd_reloc_ok
;
2721 /* Sanity check the address (offset in section). */
2722 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
2723 return bfd_reloc_outofrange
;
2726 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2727 ret
= bfd_reloc_undefined
;
2729 if (bfd_is_com_section (symbol
->section
))
2732 relocation
= symbol
->value
;
2734 relocation
+= symbol
->section
->output_section
->vma
;
2735 relocation
+= symbol
->section
->output_offset
;
2736 relocation
+= reloc_entry
->addend
;
2738 /* Save the information, and let LO12 do the actual relocation. */
2739 n
= (struct nds32_hi20
*) bfd_malloc ((bfd_size_type
) sizeof *n
);
2741 return bfd_reloc_outofrange
;
2743 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
2744 n
->addend
= relocation
;
2745 n
->next
= nds32_hi20_list
;
2746 nds32_hi20_list
= n
;
2748 if (output_bfd
!= (bfd
*) NULL
)
2749 reloc_entry
->address
+= input_section
->output_offset
;
2754 /* Handle an NDS32 ELF HI20 reloc. */
2757 nds32_elf_relocate_hi20 (bfd
*input_bfd ATTRIBUTE_UNUSED
,
2758 int type ATTRIBUTE_UNUSED
,
2759 Elf_Internal_Rela
*relhi
,
2760 Elf_Internal_Rela
*rello
,
2767 insn
= bfd_getb32 (contents
+ relhi
->r_offset
);
2769 addlo
= bfd_getb32 (contents
+ rello
->r_offset
);
2772 addend
+= ((insn
& 0xfffff) << 20) + addlo
;
2774 insn
= (insn
& 0xfff00000) | ((addend
>> 12) & 0xfffff);
2775 bfd_putb32 (insn
, contents
+ relhi
->r_offset
);
2778 /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit
2779 inplace relocation; this function exists in order to do the
2780 R_NDS32_HI20_[SU]LO relocation described above. */
2782 static bfd_reloc_status_type
2783 nds32_elf_lo12_reloc (bfd
*input_bfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2784 void *data
, asection
*input_section
, bfd
*output_bfd
,
2785 char **error_message
)
2787 /* This part is from bfd_elf_generic_reloc.
2788 If we're relocating, and this an external symbol, we don't want
2789 to change anything. */
2790 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2791 && reloc_entry
->addend
== 0)
2793 reloc_entry
->address
+= input_section
->output_offset
;
2794 return bfd_reloc_ok
;
2797 if (nds32_hi20_list
!= NULL
)
2799 struct nds32_hi20
*l
;
2801 l
= nds32_hi20_list
;
2806 unsigned long vallo
;
2807 struct nds32_hi20
*next
;
2809 /* Do the HI20 relocation. Note that we actually don't need
2810 to know anything about the LO12 itself, except where to
2811 find the low 12 bits of the addend needed by the LO12. */
2812 insn
= bfd_getb32 (l
->addr
);
2813 vallo
= bfd_getb32 ((bfd_byte
*) data
+ reloc_entry
->address
);
2815 switch (reloc_entry
->howto
->type
)
2817 case R_NDS32_LO12S3
:
2821 case R_NDS32_LO12S2
:
2825 case R_NDS32_LO12S1
:
2829 case R_NDS32_LO12S0
:
2834 val
= ((insn
& 0xfffff) << 12) + vallo
;
2837 insn
= (insn
& ~(bfd_vma
) 0xfffff) | ((val
>> 12) & 0xfffff);
2838 bfd_putb32 ((bfd_vma
) insn
, l
->addr
);
2845 nds32_hi20_list
= NULL
;
2848 /* Now do the LO12 reloc in the usual way.
2849 ??? It would be nice to call bfd_elf_generic_reloc here,
2850 but we have partial_inplace set. bfd_elf_generic_reloc will
2851 pass the handling back to bfd_install_relocation which will install
2852 a section relative addend which is wrong. */
2853 return nds32_elf_generic_reloc (input_bfd
, reloc_entry
, symbol
, data
,
2854 input_section
, output_bfd
, error_message
);
2857 /* Do generic partial_inplace relocation.
2858 This is a local replacement for bfd_elf_generic_reloc. */
2860 static bfd_reloc_status_type
2861 nds32_elf_generic_reloc (bfd
*input_bfd
, arelent
*reloc_entry
,
2862 asymbol
*symbol
, void *data
, asection
*input_section
,
2863 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2865 bfd_reloc_status_type ret
;
2867 bfd_byte
*inplace_address
;
2869 /* This part is from bfd_elf_generic_reloc.
2870 If we're relocating, and this an external symbol, we don't want
2871 to change anything. */
2872 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2873 && reloc_entry
->addend
== 0)
2875 reloc_entry
->address
+= input_section
->output_offset
;
2876 return bfd_reloc_ok
;
2879 /* Now do the reloc in the usual way.
2880 ??? It would be nice to call bfd_elf_generic_reloc here,
2881 but we have partial_inplace set. bfd_elf_generic_reloc will
2882 pass the handling back to bfd_install_relocation which will install
2883 a section relative addend which is wrong. */
2885 /* Sanity check the address (offset in section). */
2886 if (reloc_entry
->address
> bfd_get_section_limit (input_bfd
, input_section
))
2887 return bfd_reloc_outofrange
;
2890 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2891 ret
= bfd_reloc_undefined
;
2893 if (bfd_is_com_section (symbol
->section
) || output_bfd
!= (bfd
*) NULL
)
2896 relocation
= symbol
->value
;
2898 /* Only do this for a final link. */
2899 if (output_bfd
== (bfd
*) NULL
)
2901 relocation
+= symbol
->section
->output_section
->vma
;
2902 relocation
+= symbol
->section
->output_offset
;
2905 relocation
+= reloc_entry
->addend
;
2906 switch (reloc_entry
->howto
->type
)
2908 case R_NDS32_LO12S3
:
2912 case R_NDS32_LO12S2
:
2916 case R_NDS32_LO12S1
:
2920 case R_NDS32_LO12S0
:
2926 inplace_address
= (bfd_byte
*) data
+ reloc_entry
->address
;
2929 x = ((x & ~reloc_entry->howto->dst_mask) | \
2930 (((x & reloc_entry->howto->src_mask) + relocation) & \
2931 reloc_entry->howto->dst_mask))
2933 switch (reloc_entry
->howto
->size
)
2937 short x
= bfd_getb16 (inplace_address
);
2940 bfd_putb16 ((bfd_vma
) x
, inplace_address
);
2945 unsigned long x
= bfd_getb32 (inplace_address
);
2948 bfd_putb32 ((bfd_vma
) x
, inplace_address
);
2955 if (output_bfd
!= (bfd
*) NULL
)
2956 reloc_entry
->address
+= input_section
->output_offset
;
2961 /* Handle the R_NDS32_SDA15 reloc.
2962 This reloc is used to compute the address of objects in the small data area
2963 and to perform loads and stores from that area.
2964 The lower 15 bits are sign extended and added to the register specified
2965 in the instruction, which is assumed to point to _SDA_BASE_.
2967 Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on
2968 the access size, this must be taken care of. */
2970 static bfd_reloc_status_type
2971 nds32_elf_sda15_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2972 asymbol
*symbol
, void *data ATTRIBUTE_UNUSED
,
2973 asection
*input_section
, bfd
*output_bfd
,
2974 char **error_message ATTRIBUTE_UNUSED
)
2976 /* This part is from bfd_elf_generic_reloc. */
2977 if (output_bfd
!= (bfd
*) NULL
2978 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2979 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2981 reloc_entry
->address
+= input_section
->output_offset
;
2982 return bfd_reloc_ok
;
2985 if (output_bfd
!= NULL
)
2987 /* FIXME: See bfd_perform_relocation. Is this right? */
2988 return bfd_reloc_continue
;
2991 /* FIXME: not sure what to do here yet. But then again, the linker
2992 may never call us. */
2996 /* nds32_elf_ignore_reloc is the special function for
2997 relocation types which don't need to be relocated
2998 like relaxation relocation types.
2999 This function simply return bfd_reloc_ok when it is
3002 static bfd_reloc_status_type
3003 nds32_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
3004 asymbol
*symbol ATTRIBUTE_UNUSED
,
3005 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
3006 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
3008 if (output_bfd
!= NULL
)
3009 reloc_entry
->address
+= input_section
->output_offset
;
3011 return bfd_reloc_ok
;
3015 /* Map BFD reloc types to NDS32 ELF reloc types. */
3017 struct nds32_reloc_map_entry
3019 bfd_reloc_code_real_type bfd_reloc_val
;
3020 unsigned char elf_reloc_val
;
3023 static const struct nds32_reloc_map_entry nds32_reloc_map
[] =
3025 {BFD_RELOC_NONE
, R_NDS32_NONE
},
3026 {BFD_RELOC_16
, R_NDS32_16_RELA
},
3027 {BFD_RELOC_32
, R_NDS32_32_RELA
},
3028 {BFD_RELOC_VTABLE_INHERIT
, R_NDS32_RELA_GNU_VTINHERIT
},
3029 {BFD_RELOC_VTABLE_ENTRY
, R_NDS32_RELA_GNU_VTENTRY
},
3031 {BFD_RELOC_NDS32_20
, R_NDS32_20_RELA
},
3032 {BFD_RELOC_NDS32_9_PCREL
, R_NDS32_9_PCREL_RELA
},
3033 {BFD_RELOC_NDS32_WORD_9_PCREL
, R_NDS32_WORD_9_PCREL_RELA
},
3034 {BFD_RELOC_NDS32_15_PCREL
, R_NDS32_15_PCREL_RELA
},
3035 {BFD_RELOC_NDS32_17_PCREL
, R_NDS32_17_PCREL_RELA
},
3036 {BFD_RELOC_NDS32_25_PCREL
, R_NDS32_25_PCREL_RELA
},
3037 {BFD_RELOC_NDS32_HI20
, R_NDS32_HI20_RELA
},
3038 {BFD_RELOC_NDS32_LO12S3
, R_NDS32_LO12S3_RELA
},
3039 {BFD_RELOC_NDS32_LO12S2
, R_NDS32_LO12S2_RELA
},
3040 {BFD_RELOC_NDS32_LO12S1
, R_NDS32_LO12S1_RELA
},
3041 {BFD_RELOC_NDS32_LO12S0
, R_NDS32_LO12S0_RELA
},
3042 {BFD_RELOC_NDS32_LO12S0_ORI
, R_NDS32_LO12S0_ORI_RELA
},
3043 {BFD_RELOC_NDS32_SDA15S3
, R_NDS32_SDA15S3_RELA
},
3044 {BFD_RELOC_NDS32_SDA15S2
, R_NDS32_SDA15S2_RELA
},
3045 {BFD_RELOC_NDS32_SDA15S1
, R_NDS32_SDA15S1_RELA
},
3046 {BFD_RELOC_NDS32_SDA15S0
, R_NDS32_SDA15S0_RELA
},
3047 {BFD_RELOC_NDS32_SDA16S3
, R_NDS32_SDA16S3_RELA
},
3048 {BFD_RELOC_NDS32_SDA17S2
, R_NDS32_SDA17S2_RELA
},
3049 {BFD_RELOC_NDS32_SDA18S1
, R_NDS32_SDA18S1_RELA
},
3050 {BFD_RELOC_NDS32_SDA19S0
, R_NDS32_SDA19S0_RELA
},
3051 {BFD_RELOC_NDS32_GOT20
, R_NDS32_GOT20
},
3052 {BFD_RELOC_NDS32_9_PLTREL
, R_NDS32_9_PLTREL
},
3053 {BFD_RELOC_NDS32_25_PLTREL
, R_NDS32_25_PLTREL
},
3054 {BFD_RELOC_NDS32_COPY
, R_NDS32_COPY
},
3055 {BFD_RELOC_NDS32_GLOB_DAT
, R_NDS32_GLOB_DAT
},
3056 {BFD_RELOC_NDS32_JMP_SLOT
, R_NDS32_JMP_SLOT
},
3057 {BFD_RELOC_NDS32_RELATIVE
, R_NDS32_RELATIVE
},
3058 {BFD_RELOC_NDS32_GOTOFF
, R_NDS32_GOTOFF
},
3059 {BFD_RELOC_NDS32_GOTOFF_HI20
, R_NDS32_GOTOFF_HI20
},
3060 {BFD_RELOC_NDS32_GOTOFF_LO12
, R_NDS32_GOTOFF_LO12
},
3061 {BFD_RELOC_NDS32_GOTPC20
, R_NDS32_GOTPC20
},
3062 {BFD_RELOC_NDS32_GOT_HI20
, R_NDS32_GOT_HI20
},
3063 {BFD_RELOC_NDS32_GOT_LO12
, R_NDS32_GOT_LO12
},
3064 {BFD_RELOC_NDS32_GOTPC_HI20
, R_NDS32_GOTPC_HI20
},
3065 {BFD_RELOC_NDS32_GOTPC_LO12
, R_NDS32_GOTPC_LO12
},
3066 {BFD_RELOC_NDS32_INSN16
, R_NDS32_INSN16
},
3067 {BFD_RELOC_NDS32_LABEL
, R_NDS32_LABEL
},
3068 {BFD_RELOC_NDS32_LONGCALL1
, R_NDS32_LONGCALL1
},
3069 {BFD_RELOC_NDS32_LONGCALL2
, R_NDS32_LONGCALL2
},
3070 {BFD_RELOC_NDS32_LONGCALL3
, R_NDS32_LONGCALL3
},
3071 {BFD_RELOC_NDS32_LONGJUMP1
, R_NDS32_LONGJUMP1
},
3072 {BFD_RELOC_NDS32_LONGJUMP2
, R_NDS32_LONGJUMP2
},
3073 {BFD_RELOC_NDS32_LONGJUMP3
, R_NDS32_LONGJUMP3
},
3074 {BFD_RELOC_NDS32_LOADSTORE
, R_NDS32_LOADSTORE
},
3075 {BFD_RELOC_NDS32_9_FIXED
, R_NDS32_9_FIXED_RELA
},
3076 {BFD_RELOC_NDS32_15_FIXED
, R_NDS32_15_FIXED_RELA
},
3077 {BFD_RELOC_NDS32_17_FIXED
, R_NDS32_17_FIXED_RELA
},
3078 {BFD_RELOC_NDS32_25_FIXED
, R_NDS32_25_FIXED_RELA
},
3079 {BFD_RELOC_NDS32_LONGCALL4
, R_NDS32_LONGCALL4
},
3080 {BFD_RELOC_NDS32_LONGCALL5
, R_NDS32_LONGCALL5
},
3081 {BFD_RELOC_NDS32_LONGCALL6
, R_NDS32_LONGCALL6
},
3082 {BFD_RELOC_NDS32_LONGJUMP4
, R_NDS32_LONGJUMP4
},
3083 {BFD_RELOC_NDS32_LONGJUMP5
, R_NDS32_LONGJUMP5
},
3084 {BFD_RELOC_NDS32_LONGJUMP6
, R_NDS32_LONGJUMP6
},
3085 {BFD_RELOC_NDS32_LONGJUMP7
, R_NDS32_LONGJUMP7
},
3086 {BFD_RELOC_NDS32_PLTREL_HI20
, R_NDS32_PLTREL_HI20
},
3087 {BFD_RELOC_NDS32_PLTREL_LO12
, R_NDS32_PLTREL_LO12
},
3088 {BFD_RELOC_NDS32_PLT_GOTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
},
3089 {BFD_RELOC_NDS32_PLT_GOTREL_LO12
, R_NDS32_PLT_GOTREL_LO12
},
3090 {BFD_RELOC_NDS32_SDA12S2_DP
, R_NDS32_SDA12S2_DP_RELA
},
3091 {BFD_RELOC_NDS32_SDA12S2_SP
, R_NDS32_SDA12S2_SP_RELA
},
3092 {BFD_RELOC_NDS32_LO12S2_DP
, R_NDS32_LO12S2_DP_RELA
},
3093 {BFD_RELOC_NDS32_LO12S2_SP
, R_NDS32_LO12S2_SP_RELA
},
3094 {BFD_RELOC_NDS32_DWARF2_OP1
, R_NDS32_DWARF2_OP1_RELA
},
3095 {BFD_RELOC_NDS32_DWARF2_OP2
, R_NDS32_DWARF2_OP2_RELA
},
3096 {BFD_RELOC_NDS32_DWARF2_LEB
, R_NDS32_DWARF2_LEB_RELA
},
3097 {BFD_RELOC_NDS32_UPDATE_TA
, R_NDS32_UPDATE_TA_RELA
},
3098 {BFD_RELOC_NDS32_PLT_GOTREL_LO20
, R_NDS32_PLT_GOTREL_LO20
},
3099 {BFD_RELOC_NDS32_PLT_GOTREL_LO15
, R_NDS32_PLT_GOTREL_LO15
},
3100 {BFD_RELOC_NDS32_PLT_GOTREL_LO19
, R_NDS32_PLT_GOTREL_LO19
},
3101 {BFD_RELOC_NDS32_GOT_LO15
, R_NDS32_GOT_LO15
},
3102 {BFD_RELOC_NDS32_GOT_LO19
, R_NDS32_GOT_LO19
},
3103 {BFD_RELOC_NDS32_GOTOFF_LO15
, R_NDS32_GOTOFF_LO15
},
3104 {BFD_RELOC_NDS32_GOTOFF_LO19
, R_NDS32_GOTOFF_LO19
},
3105 {BFD_RELOC_NDS32_GOT15S2
, R_NDS32_GOT15S2_RELA
},
3106 {BFD_RELOC_NDS32_GOT17S2
, R_NDS32_GOT17S2_RELA
},
3107 {BFD_RELOC_NDS32_5
, R_NDS32_5_RELA
},
3108 {BFD_RELOC_NDS32_10_UPCREL
, R_NDS32_10_UPCREL_RELA
},
3109 {BFD_RELOC_NDS32_SDA_FP7U2_RELA
, R_NDS32_SDA_FP7U2_RELA
},
3110 {BFD_RELOC_NDS32_RELAX_ENTRY
, R_NDS32_RELAX_ENTRY
},
3111 {BFD_RELOC_NDS32_GOT_SUFF
, R_NDS32_GOT_SUFF
},
3112 {BFD_RELOC_NDS32_GOTOFF_SUFF
, R_NDS32_GOTOFF_SUFF
},
3113 {BFD_RELOC_NDS32_PLT_GOT_SUFF
, R_NDS32_PLT_GOT_SUFF
},
3114 {BFD_RELOC_NDS32_MULCALL_SUFF
, R_NDS32_MULCALL_SUFF
},
3115 {BFD_RELOC_NDS32_PTR
, R_NDS32_PTR
},
3116 {BFD_RELOC_NDS32_PTR_COUNT
, R_NDS32_PTR_COUNT
},
3117 {BFD_RELOC_NDS32_PTR_RESOLVED
, R_NDS32_PTR_RESOLVED
},
3118 {BFD_RELOC_NDS32_PLTBLOCK
, R_NDS32_PLTBLOCK
},
3119 {BFD_RELOC_NDS32_RELAX_REGION_BEGIN
, R_NDS32_RELAX_REGION_BEGIN
},
3120 {BFD_RELOC_NDS32_RELAX_REGION_END
, R_NDS32_RELAX_REGION_END
},
3121 {BFD_RELOC_NDS32_MINUEND
, R_NDS32_MINUEND
},
3122 {BFD_RELOC_NDS32_SUBTRAHEND
, R_NDS32_SUBTRAHEND
},
3123 {BFD_RELOC_NDS32_DIFF8
, R_NDS32_DIFF8
},
3124 {BFD_RELOC_NDS32_DIFF16
, R_NDS32_DIFF16
},
3125 {BFD_RELOC_NDS32_DIFF32
, R_NDS32_DIFF32
},
3126 {BFD_RELOC_NDS32_DIFF_ULEB128
, R_NDS32_DIFF_ULEB128
},
3127 {BFD_RELOC_NDS32_EMPTY
, R_NDS32_EMPTY
},
3128 {BFD_RELOC_NDS32_25_ABS
, R_NDS32_25_ABS_RELA
},
3129 {BFD_RELOC_NDS32_DATA
, R_NDS32_DATA
},
3130 {BFD_RELOC_NDS32_TRAN
, R_NDS32_TRAN
},
3131 {BFD_RELOC_NDS32_17IFC_PCREL
, R_NDS32_17IFC_PCREL_RELA
},
3132 {BFD_RELOC_NDS32_10IFCU_PCREL
, R_NDS32_10IFCU_PCREL_RELA
},
3134 {BFD_RELOC_NDS32_TPOFF
, R_NDS32_TLS_TPOFF
},
3135 /* Missing: BFD_RELOC_NDS32_GOTTPOFF. */
3136 {BFD_RELOC_NDS32_TLS_LE_HI20
, R_NDS32_TLS_LE_HI20
},
3137 {BFD_RELOC_NDS32_TLS_LE_LO12
, R_NDS32_TLS_LE_LO12
},
3138 {BFD_RELOC_NDS32_TLS_LE_20
, R_NDS32_TLS_LE_20
},
3139 {BFD_RELOC_NDS32_TLS_LE_15S0
, R_NDS32_TLS_LE_15S0
},
3140 {BFD_RELOC_NDS32_TLS_LE_15S1
, R_NDS32_TLS_LE_15S1
},
3141 {BFD_RELOC_NDS32_TLS_LE_15S2
, R_NDS32_TLS_LE_15S2
},
3142 {BFD_RELOC_NDS32_TLS_LE_ADD
, R_NDS32_TLS_LE_ADD
},
3143 {BFD_RELOC_NDS32_TLS_LE_LS
, R_NDS32_TLS_LE_LS
},
3144 {BFD_RELOC_NDS32_TLS_IE_HI20
, R_NDS32_TLS_IE_HI20
},
3145 {BFD_RELOC_NDS32_TLS_IE_LO12
, R_NDS32_TLS_IE_LO12
},
3146 {BFD_RELOC_NDS32_TLS_IE_LO12S2
, R_NDS32_TLS_IE_LO12S2
},
3147 {BFD_RELOC_NDS32_TLS_IEGP_HI20
, R_NDS32_TLS_IEGP_HI20
},
3148 {BFD_RELOC_NDS32_TLS_IEGP_LO12
, R_NDS32_TLS_IEGP_LO12
},
3149 {BFD_RELOC_NDS32_TLS_IEGP_LO12S2
, R_NDS32_TLS_IEGP_LO12S2
},
3150 {BFD_RELOC_NDS32_TLS_IEGP_LW
, R_NDS32_TLS_IEGP_LW
},
3151 {BFD_RELOC_NDS32_TLS_DESC
, R_NDS32_TLS_DESC
},
3152 {BFD_RELOC_NDS32_TLS_DESC_HI20
, R_NDS32_TLS_DESC_HI20
},
3153 {BFD_RELOC_NDS32_TLS_DESC_LO12
, R_NDS32_TLS_DESC_LO12
},
3154 {BFD_RELOC_NDS32_TLS_DESC_20
, R_NDS32_TLS_DESC_20
},
3155 {BFD_RELOC_NDS32_TLS_DESC_SDA17S2
, R_NDS32_TLS_DESC_SDA17S2
},
3156 {BFD_RELOC_NDS32_TLS_DESC_ADD
, R_NDS32_TLS_DESC_ADD
},
3157 {BFD_RELOC_NDS32_TLS_DESC_FUNC
, R_NDS32_TLS_DESC_FUNC
},
3158 {BFD_RELOC_NDS32_TLS_DESC_CALL
, R_NDS32_TLS_DESC_CALL
},
3159 {BFD_RELOC_NDS32_TLS_DESC_MEM
, R_NDS32_TLS_DESC_MEM
},
3160 {BFD_RELOC_NDS32_REMOVE
, R_NDS32_RELAX_REMOVE
},
3161 {BFD_RELOC_NDS32_GROUP
, R_NDS32_RELAX_GROUP
},
3162 {BFD_RELOC_NDS32_LSI
, R_NDS32_LSI
},
3167 static reloc_howto_type
*
3168 bfd_elf32_bfd_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
3173 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_howto_table
); i
++)
3174 if (nds32_elf_howto_table
[i
].name
!= NULL
3175 && strcasecmp (nds32_elf_howto_table
[i
].name
, r_name
) == 0)
3176 return &nds32_elf_howto_table
[i
];
3178 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_relax_howto_table
); i
++)
3179 if (nds32_elf_relax_howto_table
[i
].name
!= NULL
3180 && strcasecmp (nds32_elf_relax_howto_table
[i
].name
, r_name
) == 0)
3181 return &nds32_elf_relax_howto_table
[i
];
3186 static reloc_howto_type
*
3187 bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code
)
3189 if (code
< R_NDS32_RELAX_ENTRY
)
3191 BFD_ASSERT (code
< ARRAY_SIZE (nds32_elf_howto_table
));
3192 return &nds32_elf_howto_table
[code
];
3196 if ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
3197 >= ARRAY_SIZE (nds32_elf_relax_howto_table
))
3203 BFD_ASSERT ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
3204 < ARRAY_SIZE (nds32_elf_relax_howto_table
));
3205 return &nds32_elf_relax_howto_table
[code
- R_NDS32_RELAX_ENTRY
];
3209 static reloc_howto_type
*
3210 bfd_elf32_bfd_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
3211 bfd_reloc_code_real_type code
)
3215 for (i
= 0; i
< ARRAY_SIZE (nds32_reloc_map
); i
++)
3217 if (nds32_reloc_map
[i
].bfd_reloc_val
== code
)
3218 return bfd_elf32_bfd_reloc_type_table_lookup
3219 (nds32_reloc_map
[i
].elf_reloc_val
);
3225 /* Set the howto pointer for an NDS32 ELF reloc. */
3228 nds32_info_to_howto_rel (bfd
*abfd
, arelent
*cache_ptr
,
3229 Elf_Internal_Rela
*dst
)
3231 enum elf_nds32_reloc_type r_type
;
3233 r_type
= ELF32_R_TYPE (dst
->r_info
);
3234 if (r_type
> R_NDS32_GNU_VTENTRY
)
3236 /* xgettext:c-format */
3237 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3239 bfd_set_error (bfd_error_bad_value
);
3243 BFD_ASSERT (ELF32_R_TYPE (dst
->r_info
) <= R_NDS32_GNU_VTENTRY
);
3244 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
3249 nds32_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
3250 Elf_Internal_Rela
*dst
)
3252 unsigned int r_type
= ELF32_R_TYPE (dst
->r_info
);
3254 if ((r_type
== R_NDS32_NONE
)
3255 || ((r_type
> R_NDS32_GNU_VTENTRY
)
3256 && (r_type
< R_NDS32_max
)))
3258 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
3262 /* xgettext:c-format */
3263 _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd
, r_type
);
3264 bfd_set_error (bfd_error_bad_value
);
3268 /* Support for core dump NOTE sections.
3269 Reference to include/linux/elfcore.h in Linux. */
3272 nds32_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
3277 switch (note
->descsz
)
3280 /* Linux/NDS32 32-bit, ABI1. */
3283 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3286 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3294 /* Linux/NDS32 32-bit. */
3297 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3300 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3311 /* Make a ".reg" section. */
3312 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3313 size
, note
->descpos
+ offset
);
3317 nds32_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3319 switch (note
->descsz
)
3324 /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */
3325 elf_tdata (abfd
)->core
->program
=
3326 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
3327 elf_tdata (abfd
)->core
->command
=
3328 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
3335 /* Note that for some reason, a spurious space is tacked
3336 onto the end of the args in some (at least one anyway)
3337 implementations, so strip it off if it exists. */
3339 char *command
= elf_tdata (abfd
)->core
->command
;
3340 int n
= strlen (command
);
3342 if (0 < n
&& command
[n
- 1] == ' ')
3343 command
[n
- 1] = '\0';
3349 /* Hook called by the linker routine which adds symbols from an object
3350 file. We must handle the special NDS32 section numbers here.
3351 We also keep watching for whether we need to create the sdata special
3355 nds32_elf_add_symbol_hook (bfd
*abfd
,
3356 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3357 Elf_Internal_Sym
*sym
,
3358 const char **namep ATTRIBUTE_UNUSED
,
3359 flagword
*flagsp ATTRIBUTE_UNUSED
,
3360 asection
**secp
, bfd_vma
*valp
)
3362 switch (sym
->st_shndx
)
3365 /* Common symbols less than the GP size are automatically
3366 treated as SHN_MIPS_SCOMMON symbols. */
3367 if (sym
->st_size
> elf_gp_size (abfd
)
3368 || ELF_ST_TYPE (sym
->st_info
) == STT_TLS
)
3371 /* st_value is the alignemnt constraint.
3372 That might be its actual size if it is an array or structure. */
3373 switch (sym
->st_value
)
3376 *secp
= bfd_make_section_old_way (abfd
, ".scommon_b");
3379 *secp
= bfd_make_section_old_way (abfd
, ".scommon_h");
3382 *secp
= bfd_make_section_old_way (abfd
, ".scommon_w");
3385 *secp
= bfd_make_section_old_way (abfd
, ".scommon_d");
3391 (*secp
)->flags
|= SEC_IS_COMMON
;
3392 *valp
= sym
->st_size
;
3399 /* This function can figure out the best location for a base register to access
3400 data relative to this base register
3402 sda_d0: size of first DOUBLE WORD data section
3403 sda_w0: size of first WORD data section
3404 sda_h0: size of first HALF WORD data section
3405 sda_b : size of BYTE data section
3406 sda_hi: size of second HALF WORD data section
3407 sda_w1: size of second WORD data section
3408 sda_d1: size of second DOUBLE WORD data section
3410 offset (always positive) from the beginning of sda_d0 if OK
3411 a negative error value if fail
3413 these 7 sections have to be located back to back if exist
3414 a pass in 0 value for non-existing section */
3416 /* Due to the interpretation of simm15 field of load/store depending on
3417 data accessing size, the organization of base register relative data shall
3418 like the following figure
3419 -------------------------------------------
3420 | DOUBLE WORD sized data (range +/- 128K)
3421 -------------------------------------------
3422 | WORD sized data (range +/- 64K)
3423 -------------------------------------------
3424 | HALF WORD sized data (range +/- 32K)
3425 -------------------------------------------
3426 | BYTE sized data (range +/- 16K)
3427 -------------------------------------------
3428 | HALF WORD sized data (range +/- 32K)
3429 -------------------------------------------
3430 | WORD sized data (range +/- 64K)
3431 -------------------------------------------
3432 | DOUBLE WORD sized data (range +/- 128K)
3433 -------------------------------------------
3434 Its base register shall be set to access these data freely. */
3436 /* We have to figure out the SDA_BASE value, so that we can adjust the
3437 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
3438 BFD. If we can't find it, we're stuck. We cache it in the ELF
3439 target data. We don't need to adjust the symbol value for an
3440 external symbol if we are producing relocatable output. */
3442 static asection
*sda_rela_sec
= NULL
;
3444 #define SDA_SECTION_NUM 10
3446 static bfd_reloc_status_type
3447 nds32_elf_final_sda_base (bfd
* output_bfd
,
3448 struct bfd_link_info
* info
,
3450 bfd_boolean add_symbol
)
3453 struct elf_nds32_link_hash_table
*table
;
3454 struct bfd_link_hash_entry
*h
, *h2
;
3455 long unsigned int total
= 0;
3456 asection
*first
= NULL
, *final
= NULL
, *temp
;
3457 bfd_vma sda_base
= 0;
3459 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
3460 if (!h
|| (h
->type
!= bfd_link_hash_defined
3461 && h
->type
!= bfd_link_hash_defweak
))
3463 /* The first section must be 4-byte aligned to promise _SDA_BASE_ being
3464 4 byte-aligned. Therefore, it has to set the first section ".data"
3466 static const char sec_name
[SDA_SECTION_NUM
][10] =
3468 ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b",
3469 ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d"
3473 if (output_bfd
->sections
== NULL
)
3475 *psb
= elf_gp (output_bfd
);
3476 return bfd_reloc_ok
;
3479 /* Get the first and final section. */
3480 while (i
< ARRAY_SIZE (sec_name
))
3482 temp
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3483 if (temp
&& !first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3485 if (temp
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3488 /* Summarize the sections in order to check if joining .bss. */
3489 if (temp
&& temp
->size
!= 0)
3490 total
+= temp
->size
;
3491 else if (temp
&& temp
->rawsize
!= 0)
3492 total
+= temp
->rawsize
;
3497 /* Check .bss size. */
3498 temp
= bfd_get_section_by_name (output_bfd
, ".bss");
3501 if (temp
->size
!= 0)
3502 total
+= temp
->size
;
3503 else if (temp
->rawsize
!= 0)
3504 total
+= temp
->rawsize
;
3506 if (total
< 0x80000)
3508 if (!first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3510 if ((temp
->size
!= 0 || temp
->rawsize
!= 0))
3517 /* The middle of data region. */
3518 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3520 /* Find the section sda_base located. */
3522 while (i
< ARRAY_SIZE (sec_name
))
3524 final
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3525 if (final
&& (final
->size
!= 0 || final
->rawsize
!= 0)
3526 && sda_base
>= final
->vma
)
3537 /* If there is not any default data section in output bfd, try to find
3538 the first data section. If no data section be found, just simplily
3539 choose the first output section. */
3540 temp
= output_bfd
->sections
;
3543 if (temp
->flags
& SEC_ALLOC
3544 && (((temp
->flags
& SEC_DATA
)
3545 && ((temp
->flags
& SEC_READONLY
) == 0))
3546 || (temp
->flags
& SEC_LOAD
) == 0)
3547 && (temp
->size
!= 0 || temp
->rawsize
!= 0))
3556 /* There is no data or bss section. */
3557 if (!first
|| (first
->size
== 0 && first
->rawsize
== 0))
3559 first
= output_bfd
->sections
;
3560 while (first
&& first
->size
== 0 && first
->rawsize
== 0)
3561 first
= first
->next
;
3564 /* There is no concrete section. */
3567 *psb
= elf_gp (output_bfd
);
3568 return bfd_reloc_ok
;
3571 if (final
&& (final
->vma
+ final
->rawsize
- first
->vma
) <= 0x4000)
3572 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3574 sda_base
= first
->vma
+ 0x2000;
3577 sda_base
-= first
->vma
;
3578 sda_base
= sda_base
& (~7);
3580 if (!_bfd_generic_link_add_one_symbol
3581 (info
, output_bfd
, "_SDA_BASE_", BSF_GLOBAL
| BSF_WEAK
, first
,
3582 (bfd_vma
) sda_base
, (const char *) NULL
, FALSE
,
3583 get_elf_backend_data (output_bfd
)->collect
, &h
))
3586 sda_rela_sec
= first
;
3589 /* Set _FP_BASE_ to _SDA_BASE_. */
3590 table
= nds32_elf_hash_table (info
);
3591 relax_fp_as_gp
= table
->relax_fp_as_gp
;
3592 h2
= bfd_link_hash_lookup (info
->hash
, FP_BASE_NAME
, FALSE
, FALSE
, FALSE
);
3593 /* _SDA_BASE_ is difined in linker script. */
3596 first
= h
->u
.def
.section
;
3597 sda_base
= h
->u
.def
.value
;
3600 if (relax_fp_as_gp
&& h2
3601 && (h2
->type
== bfd_link_hash_undefweak
3602 || h2
->type
== bfd_link_hash_undefined
))
3604 /* Define a weak FP_BASE_NAME here to prevent the undefined symbol.
3605 And set FP equal to SDA_BASE to do relaxation for
3606 la $fp, _FP_BASE_. */
3607 if (!_bfd_generic_link_add_one_symbol
3608 (info
, output_bfd
, FP_BASE_NAME
, BSF_GLOBAL
| BSF_WEAK
,
3609 first
, sda_base
, (const char *) NULL
,
3610 FALSE
, get_elf_backend_data (output_bfd
)->collect
, &h2
))
3619 elf_gp (output_bfd
) = (h
->u
.def
.value
3620 + h
->u
.def
.section
->output_section
->vma
3621 + h
->u
.def
.section
->output_offset
);
3625 _bfd_error_handler (_("error: can't find symbol: %s"), "_SDA_BASE_");
3626 return bfd_reloc_dangerous
;
3630 *psb
= h
->u
.def
.value
3631 + h
->u
.def
.section
->output_section
->vma
3632 + h
->u
.def
.section
->output_offset
;
3633 return bfd_reloc_ok
;
3637 /* Return size of a PLT entry. */
3638 #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE
3640 /* Create an entry in an nds32 ELF linker hash table. */
3642 static struct bfd_hash_entry
*
3643 nds32_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3644 struct bfd_hash_table
*table
,
3647 struct elf_nds32_link_hash_entry
*ret
;
3649 ret
= (struct elf_nds32_link_hash_entry
*) entry
;
3651 /* Allocate the structure if it has not already been allocated by a
3654 ret
= (struct elf_nds32_link_hash_entry
*)
3655 bfd_hash_allocate (table
, sizeof (struct elf_nds32_link_hash_entry
));
3658 return (struct bfd_hash_entry
*) ret
;
3660 /* Call the allocation method of the superclass. */
3661 ret
= (struct elf_nds32_link_hash_entry
*)
3662 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
);
3666 struct elf_nds32_link_hash_entry
*eh
;
3668 eh
= (struct elf_nds32_link_hash_entry
*) ret
;
3669 eh
->tls_type
= GOT_UNKNOWN
;
3670 eh
->offset_to_gp
= 0;
3673 return (struct bfd_hash_entry
*) ret
;
3676 /* Create an nds32 ELF linker hash table. */
3678 static struct bfd_link_hash_table
*
3679 nds32_elf_link_hash_table_create (bfd
*abfd
)
3681 struct elf_nds32_link_hash_table
*ret
;
3683 size_t amt
= sizeof (struct elf_nds32_link_hash_table
);
3685 ret
= (struct elf_nds32_link_hash_table
*) bfd_zmalloc (amt
);
3690 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
3691 nds32_elf_link_hash_newfunc
,
3692 sizeof (struct elf_nds32_link_hash_entry
),
3699 ret
->sdynbss
= NULL
;
3700 ret
->srelbss
= NULL
;
3701 ret
->sym_ld_script
= NULL
;
3703 return &ret
->root
.root
;
3706 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3707 shortcuts to them in our hash table. */
3710 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
3712 struct elf_link_hash_table
*ehtab
;
3714 if (!_bfd_elf_create_got_section (dynobj
, info
))
3717 ehtab
= elf_hash_table (info
);
3718 ehtab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3719 ehtab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3720 if (!ehtab
->sgot
|| !ehtab
->sgotplt
)
3723 /* _bfd_elf_create_got_section will create it for us. */
3724 ehtab
->srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3725 if (ehtab
->srelgot
== NULL
3726 || !bfd_set_section_flags (ehtab
->srelgot
,
3727 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3728 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3730 || !bfd_set_section_alignment (ehtab
->srelgot
, 2))
3736 /* Create dynamic sections when linking against a dynamic object. */
3739 nds32_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3741 struct elf_link_hash_table
*ehtab
;
3742 struct elf_nds32_link_hash_table
*htab
;
3743 flagword flags
, pltflags
;
3744 register asection
*s
;
3745 const struct elf_backend_data
*bed
;
3746 int ptralign
= 2; /* 32-bit */
3747 const char *secname
;
3752 bed
= get_elf_backend_data (abfd
);
3753 ehtab
= elf_hash_table (info
);
3754 htab
= nds32_elf_hash_table (info
);
3756 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3757 .rel[a].bss sections. */
3759 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3760 | SEC_LINKER_CREATED
);
3763 pltflags
|= SEC_CODE
;
3764 if (bed
->plt_not_loaded
)
3765 pltflags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
3766 if (bed
->plt_readonly
)
3767 pltflags
|= SEC_READONLY
;
3769 s
= bfd_make_section (abfd
, ".plt");
3772 || !bfd_set_section_flags (s
, pltflags
)
3773 || !bfd_set_section_alignment (s
, bed
->plt_alignment
))
3776 if (bed
->want_plt_sym
)
3778 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3780 struct bfd_link_hash_entry
*bh
= NULL
;
3781 struct elf_link_hash_entry
*h
;
3783 if (!(_bfd_generic_link_add_one_symbol
3784 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3785 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
3786 get_elf_backend_data (abfd
)->collect
, &bh
)))
3789 h
= (struct elf_link_hash_entry
*) bh
;
3791 h
->type
= STT_OBJECT
;
3793 if (bfd_link_pic (info
) && !bfd_elf_link_record_dynamic_symbol (info
, h
))
3797 s
= bfd_make_section (abfd
,
3798 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3801 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3802 || !bfd_set_section_alignment (s
, ptralign
))
3805 if (ehtab
->sgot
== NULL
&& !create_got_section (abfd
, info
))
3808 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3810 secflags
= bfd_section_flags (sec
);
3811 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3812 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3814 secname
= bfd_section_name (sec
);
3815 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
3816 strcpy (relname
, ".rela");
3817 strcat (relname
, secname
);
3818 if (bfd_get_section_by_name (abfd
, secname
))
3820 s
= bfd_make_section (abfd
, relname
);
3822 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3823 || !bfd_set_section_alignment (s
, ptralign
))
3827 if (bed
->want_dynbss
)
3829 /* The .dynbss section is a place to put symbols which are defined
3830 by dynamic objects, are referenced by regular objects, and are
3831 not functions. We must allocate space for them in the process
3832 image and use a R_*_COPY reloc to tell the dynamic linker to
3833 initialize them at run time. The linker script puts the .dynbss
3834 section into the .bss section of the final image. */
3835 s
= bfd_make_section (abfd
, ".dynbss");
3838 || !bfd_set_section_flags (s
, SEC_ALLOC
| SEC_LINKER_CREATED
))
3840 /* The .rel[a].bss section holds copy relocs. This section is not
3841 normally needed. We need to create it here, though, so that the
3842 linker will map it to an output section. We can't just create it
3843 only if we need it, because we will not know whether we need it
3844 until we have seen all the input files, and the first time the
3845 main linker code calls BFD after examining all the input files
3846 (size_dynamic_sections) the input sections have already been
3847 mapped to the output sections. If the section turns out not to
3848 be needed, we can discard it later. We will never need this
3849 section when generating a shared object, since they do not use
3851 if (!bfd_link_pic (info
))
3853 s
= bfd_make_section (abfd
, (bed
->default_use_rela_p
3854 ? ".rela.bss" : ".rel.bss"));
3857 || !bfd_set_section_flags (s
, flags
| SEC_READONLY
)
3858 || !bfd_set_section_alignment (s
, ptralign
))
3866 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3868 nds32_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3869 struct elf_link_hash_entry
*dir
,
3870 struct elf_link_hash_entry
*ind
)
3872 struct elf_nds32_link_hash_entry
*edir
, *eind
;
3874 edir
= (struct elf_nds32_link_hash_entry
*) dir
;
3875 eind
= (struct elf_nds32_link_hash_entry
*) ind
;
3877 if (ind
->dyn_relocs
!= NULL
)
3879 if (dir
->dyn_relocs
!= NULL
)
3881 struct elf_dyn_relocs
**pp
;
3882 struct elf_dyn_relocs
*p
;
3884 if (ind
->root
.type
== bfd_link_hash_indirect
)
3887 /* Add reloc counts against the weak sym to the strong sym
3888 list. Merge any entries against the same section. */
3889 for (pp
= &ind
->dyn_relocs
; (p
= *pp
) != NULL
;)
3891 struct elf_dyn_relocs
*q
;
3893 for (q
= dir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3894 if (q
->sec
== p
->sec
)
3896 q
->pc_count
+= p
->pc_count
;
3897 q
->count
+= p
->count
;
3904 *pp
= dir
->dyn_relocs
;
3907 dir
->dyn_relocs
= ind
->dyn_relocs
;
3908 ind
->dyn_relocs
= NULL
;
3911 if (ind
->root
.type
== bfd_link_hash_indirect
)
3913 if (dir
->got
.refcount
<= 0)
3915 edir
->tls_type
= eind
->tls_type
;
3916 eind
->tls_type
= GOT_UNKNOWN
;
3920 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3924 /* Find dynamic relocs for H that apply to read-only sections. */
3927 readonly_dynrelocs (struct elf_link_hash_entry
*h
)
3929 struct elf_dyn_relocs
*p
;
3931 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3933 asection
*s
= p
->sec
->output_section
;
3935 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3941 /* Adjust a symbol defined by a dynamic object and referenced by a
3942 regular object. The current definition is in some section of the
3943 dynamic object, but we're not including those sections. We have to
3944 change the definition to something the rest of the link can
3948 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3949 struct elf_link_hash_entry
*h
)
3951 struct elf_nds32_link_hash_table
*htab
;
3954 unsigned int power_of_two
;
3956 dynobj
= elf_hash_table (info
)->dynobj
;
3958 /* Make sure we know what is going on here. */
3959 BFD_ASSERT (dynobj
!= NULL
3962 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
3965 /* If this is a function, put it in the procedure linkage table. We
3966 will fill in the contents of the procedure linkage table later,
3967 when we know the address of the .got section. */
3968 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
3970 if (!bfd_link_pic (info
)
3973 && h
->root
.type
!= bfd_link_hash_undefweak
3974 && h
->root
.type
!= bfd_link_hash_undefined
)
3976 /* This case can occur if we saw a PLT reloc in an input
3977 file, but the symbol was never referred to by a dynamic
3978 object. In such a case, we don't actually need to build
3979 a procedure linkage table, and we can just do a PCREL
3981 h
->plt
.offset
= (bfd_vma
) - 1;
3988 h
->plt
.offset
= (bfd_vma
) - 1;
3990 /* If this is a weak symbol, and there is a real definition, the
3991 processor independent code will have arranged for us to see the
3992 real definition first, and we can just use the same value. */
3993 if (h
->is_weakalias
)
3995 struct elf_link_hash_entry
*def
= weakdef (h
);
3996 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
3997 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
3998 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
4002 /* This is a reference to a symbol defined by a dynamic object which
4003 is not a function. */
4005 /* If we are creating a shared library, we must presume that the
4006 only references to the symbol are via the global offset table.
4007 For such cases we need not do anything here; the relocations will
4008 be handled correctly by relocate_section. */
4009 if (bfd_link_pic (info
))
4012 /* If there are no references to this symbol that do not use the
4013 GOT, we don't need to generate a copy reloc. */
4014 if (!h
->non_got_ref
)
4017 /* If -z nocopyreloc was given, we won't generate them either. */
4018 if (0 && info
->nocopyreloc
)
4024 /* If we don't find any dynamic relocs in read-only sections, then
4025 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
4026 if (!readonly_dynrelocs (h
))
4032 /* We must allocate the symbol in our .dynbss section, which will
4033 become part of the .bss section of the executable. There will be
4034 an entry for this symbol in the .dynsym section. The dynamic
4035 object will contain position independent code, so all references
4036 from the dynamic object to this symbol will go through the global
4037 offset table. The dynamic linker will use the .dynsym entry to
4038 determine the address it must put in the global offset table, so
4039 both the dynamic object and the regular object will refer to the
4040 same memory location for the variable. */
4042 htab
= nds32_elf_hash_table (info
);
4044 BFD_ASSERT (s
!= NULL
);
4046 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
4047 to copy the initial value out of the dynamic object and into the
4048 runtime process image. We need to remember the offset into the
4049 .rela.bss section we are going to use. */
4050 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
4054 srel
= htab
->srelbss
;
4055 BFD_ASSERT (srel
!= NULL
);
4056 srel
->size
+= sizeof (Elf32_External_Rela
);
4060 /* We need to figure out the alignment required for this symbol. I
4061 have no idea how ELF linkers handle this. */
4062 power_of_two
= bfd_log2 (h
->size
);
4063 if (power_of_two
> 3)
4066 /* Apply the required alignment. */
4067 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
4068 if (power_of_two
> bfd_section_alignment (s
))
4070 if (!bfd_set_section_alignment (s
, power_of_two
))
4074 /* Define the symbol as being at this point in the section. */
4075 h
->root
.u
.def
.section
= s
;
4076 h
->root
.u
.def
.value
= s
->size
;
4078 /* Increment the section size to make room for the symbol. */
4084 /* Allocate space in .plt, .got and associated reloc sections for
4088 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
4090 struct bfd_link_info
*info
;
4091 struct elf_link_hash_table
*ehtab
;
4092 struct elf_nds32_link_hash_table
*htab
;
4093 struct elf_dyn_relocs
*p
;
4095 if (h
->root
.type
== bfd_link_hash_indirect
)
4098 /* When warning symbols are created, they **replace** the "real"
4099 entry in the hash table, thus we never get to see the real
4100 symbol in a hash traversal. So look at it now. */
4101 if (h
->root
.type
== bfd_link_hash_warning
)
4102 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
4104 info
= (struct bfd_link_info
*) inf
;
4105 ehtab
= elf_hash_table (info
);
4106 htab
= nds32_elf_hash_table (info
);
4110 if ((htab
->root
.dynamic_sections_created
|| h
->type
== STT_GNU_IFUNC
)
4111 && h
->plt
.refcount
> 0
4112 && !(bfd_link_pie (info
) && h
->def_regular
))
4114 /* Make sure this symbol is output as a dynamic symbol.
4115 Undefined weak syms won't yet be marked as dynamic. */
4116 if (h
->dynindx
== -1 && !h
->forced_local
)
4118 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4122 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
4124 asection
*s
= ehtab
->splt
;
4126 /* If this is the first .plt entry, make room for the special
4129 s
->size
+= PLT_ENTRY_SIZE
;
4131 h
->plt
.offset
= s
->size
;
4133 /* If this symbol is not defined in a regular file, and we are
4134 not generating a shared library, then set the symbol to this
4135 location in the .plt. This is required to make function
4136 pointers compare as equal between the normal executable and
4137 the shared library. */
4138 if (!bfd_link_pic (info
) && !h
->def_regular
)
4140 h
->root
.u
.def
.section
= s
;
4141 h
->root
.u
.def
.value
= h
->plt
.offset
;
4144 /* Make room for this entry. */
4145 s
->size
+= PLT_ENTRY_SIZE
;
4147 /* We also need to make an entry in the .got.plt section, which
4148 will be placed in the .got section by the linker script. */
4149 ehtab
->sgotplt
->size
+= 4;
4151 /* We also need to make an entry in the .rel.plt section. */
4152 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4153 if (htab
->tls_desc_trampoline
)
4154 htab
->next_tls_desc_index
++;
4158 h
->plt
.offset
= (bfd_vma
) - 1;
4164 h
->plt
.offset
= (bfd_vma
) - 1;
4168 if (h
->got
.refcount
> 0)
4172 int tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
4174 /* Make sure this symbol is output as a dynamic symbol.
4175 Undefined weak syms won't yet be marked as dynamic. */
4176 if (h
->dynindx
== -1 && !h
->forced_local
)
4178 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4182 sgot
= elf_hash_table (info
)->sgot
;
4183 h
->got
.offset
= sgot
->size
;
4185 if (tls_type
== GOT_UNKNOWN
)
4188 /* Non-TLS symbols, and TLS_IE need one GOT slot. */
4189 if (tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4193 /* TLS_DESC, TLS_GD, and TLS_LD need 2 consecutive GOT slots. */
4194 if (tls_type
& GOT_TLS_DESC
)
4198 dyn
= htab
->root
.dynamic_sections_created
;
4200 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
4202 if (tls_type
== GOT_TLS_DESC
&& htab
->tls_desc_trampoline
)
4204 /* TLS_DESC with trampoline needs a relocation slot
4205 within .rela.plt. */
4206 htab
->num_tls_desc
++;
4207 ehtab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
4208 htab
->tls_trampoline
= -1;
4212 /* other relocations, including TLS_DESC without trampoline, need
4213 a relocation slot within .rela.got. */
4214 ehtab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
4219 h
->got
.offset
= (bfd_vma
)-1;
4221 if (h
->dyn_relocs
== NULL
)
4224 /* In the shared -Bsymbolic case, discard space allocated for
4225 dynamic pc-relative relocs against symbols which turn out to be
4226 defined in regular objects. For the normal shared case, discard
4227 space for pc-relative relocs that have become local due to symbol
4228 visibility changes. */
4230 if (bfd_link_pic (info
))
4232 if (h
->def_regular
&& (h
->forced_local
|| info
->symbolic
))
4234 struct elf_dyn_relocs
**pp
;
4236 for (pp
= &h
->dyn_relocs
; (p
= *pp
) != NULL
;)
4238 p
->count
-= p
->pc_count
;
4249 /* For the non-shared case, discard space for relocs against
4250 symbols which turn out to need copy relocs or are not dynamic. */
4255 || (htab
->root
.dynamic_sections_created
4256 && (h
->root
.type
== bfd_link_hash_undefweak
4257 || h
->root
.type
== bfd_link_hash_undefined
))))
4259 /* Make sure this symbol is output as a dynamic symbol.
4260 Undefined weak syms won't yet be marked as dynamic. */
4261 if (h
->dynindx
== -1 && !h
->forced_local
)
4263 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
4267 /* If that succeeded, we know we'll be keeping all the
4269 if (h
->dynindx
!= -1)
4273 h
->dyn_relocs
= NULL
;
4278 /* Finally, allocate space. */
4279 for (p
= h
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
4281 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4282 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4288 /* Add relocation REL to the end of relocation section SRELOC. */
4291 elf32_nds32_add_dynreloc (bfd
*output_bfd
,
4292 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4293 asection
*sreloc
, Elf_Internal_Rela
*rel
)
4299 loc
= sreloc
->contents
;
4300 loc
+= sreloc
->reloc_count
++ * sizeof (Elf32_External_Rela
);
4301 if (sreloc
->reloc_count
* sizeof (Elf32_External_Rela
) > sreloc
->size
)
4304 bfd_elf32_swap_reloca_out (output_bfd
, rel
, loc
);
4307 /* Set DF_TEXTREL if we find any dynamic relocs that apply to
4308 read-only sections. */
4311 maybe_set_textrel (struct elf_link_hash_entry
*h
, void *info_p
)
4315 if (h
->root
.type
== bfd_link_hash_indirect
)
4318 sec
= readonly_dynrelocs (h
);
4321 struct bfd_link_info
*info
= (struct bfd_link_info
*) info_p
;
4323 info
->flags
|= DF_TEXTREL
;
4324 info
->callbacks
->minfo
4325 (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"),
4326 sec
->owner
, h
->root
.root
.string
, sec
);
4328 /* Not an error, just cut short the traversal. */
4334 /* Set the sizes of the dynamic sections. */
4337 nds32_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
4338 struct bfd_link_info
*info
)
4340 struct elf_nds32_link_hash_table
*htab
;
4347 htab
= nds32_elf_hash_table (info
);
4351 dynobj
= elf_hash_table (info
)->dynobj
;
4352 BFD_ASSERT (dynobj
!= NULL
);
4354 if (elf_hash_table (info
)->dynamic_sections_created
)
4356 /* Set the contents of the .interp section to the interpreter. */
4357 if (bfd_link_executable (info
) && !info
->nointerp
)
4359 s
= bfd_get_section_by_name (dynobj
, ".interp");
4360 BFD_ASSERT (s
!= NULL
);
4361 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
4362 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
4366 /* Set up .got offsets for local syms, and space for local dynamic
4368 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
4370 bfd_signed_vma
*local_got
;
4371 bfd_signed_vma
*end_local_got
;
4372 bfd_size_type locsymcount
;
4373 Elf_Internal_Shdr
*symtab_hdr
;
4375 char *local_tls_type
;
4376 unsigned long symndx
;
4377 bfd_vma
*local_tlsdesc_gotent
;
4379 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4382 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4384 struct elf_dyn_relocs
*p
;
4386 for (p
= ((struct elf_dyn_relocs
*)
4387 elf_section_data (s
)->local_dynrel
);
4388 p
!= NULL
; p
= p
->next
)
4390 if (!bfd_is_abs_section (p
->sec
)
4391 && bfd_is_abs_section (p
->sec
->output_section
))
4393 /* Input section has been discarded, either because
4394 it is a copy of a linkonce section or due to
4395 linker script /DISCARD/, so we'll be discarding
4398 else if (p
->count
!= 0)
4400 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
4401 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4402 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4403 info
->flags
|= DF_TEXTREL
;
4408 local_got
= elf_local_got_refcounts (ibfd
);
4412 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4413 locsymcount
= symtab_hdr
->sh_info
;
4414 end_local_got
= local_got
+ locsymcount
;
4415 sgot
= elf_hash_table (info
)->sgot
;
4416 local_tls_type
= elf32_nds32_local_got_tls_type (ibfd
);
4417 local_tlsdesc_gotent
= elf32_nds32_local_tlsdesc_gotent (ibfd
);
4418 for (symndx
= 0; local_got
< end_local_got
;
4419 ++local_got
, ++local_tls_type
, ++local_tlsdesc_gotent
, ++symndx
)
4423 int num_of_got_entry_needed
= 0;
4424 *local_got
= sgot
->size
;
4425 *local_tlsdesc_gotent
= sgot
->size
;
4427 /* TLS_NORMAL, and TLS_IE need one slot in .got. */
4428 if (*local_tls_type
& (GOT_NORMAL
| GOT_TLS_IE
| GOT_TLS_IEGP
))
4429 num_of_got_entry_needed
= 1;
4430 /* TLS_GD, TLS_LD, and TLS_DESC need an 8-byte structure in the GOT. */
4431 else if (*local_tls_type
& GOT_TLS_DESC
)
4432 num_of_got_entry_needed
= 2;
4434 sgot
->size
+= (num_of_got_entry_needed
<< 2);
4436 /* non-relax-able TLS_DESCs need a slot in .rela.plt.
4437 others need a slot in .rela.got. */
4438 if (*local_tls_type
== GOT_TLS_DESC
)
4440 if (bfd_link_pic (info
))
4442 if (htab
->tls_desc_trampoline
)
4444 htab
->num_tls_desc
++;
4445 htab
->root
.srelplt
->size
+= sizeof (Elf32_External_Rela
);
4446 htab
->tls_trampoline
= -1;
4449 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4453 /* TLS_DESC -> TLS_LE */
4458 htab
->root
.srelgot
->size
+= sizeof (Elf32_External_Rela
);
4463 *local_got
= (bfd_vma
) -1;
4464 *local_tlsdesc_gotent
= (bfd_vma
) -1;
4469 /* Allocate global sym .plt and .got entries, and space for global
4470 sym dynamic relocs. */
4471 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4473 /* For every jump slot reserved in the sgotplt, reloc_count is
4474 incremented. However, when we reserve space for TLS descriptors,
4475 it's not incremented, so in order to compute the space reserved
4476 for them, it suffices to multiply the reloc count by the jump
4478 if (htab
->tls_desc_trampoline
&& htab
->root
.srelplt
)
4479 htab
->sgotplt_jump_table_size
= elf32_nds32_compute_jump_table_size (htab
);
4481 if (htab
->tls_trampoline
)
4483 htab
->tls_trampoline
= htab
->root
.splt
->size
;
4485 /* If we're not using lazy TLS relocations, don't generate the
4486 PLT and GOT entries they require. */
4487 if (!(info
->flags
& DF_BIND_NOW
))
4489 htab
->dt_tlsdesc_got
= htab
->root
.sgot
->size
;
4490 htab
->root
.sgot
->size
+= 4;
4492 htab
->dt_tlsdesc_plt
= htab
->root
.splt
->size
;
4493 htab
->root
.splt
->size
+= 4 * ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
);
4497 /* We now have determined the sizes of the various dynamic sections.
4498 Allocate memory for them. */
4499 /* The check_relocs and adjust_dynamic_symbol entry points have
4500 determined the sizes of the various dynamic sections. Allocate
4504 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
4506 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
4509 if (s
== htab
->root
.splt
)
4511 /* Strip this section if we don't need it; see the
4515 else if (s
== elf_hash_table (info
)->sgot
)
4517 got_size
+= s
->size
;
4519 else if (s
== elf_hash_table (info
)->sgotplt
)
4521 got_size
+= s
->size
;
4523 else if (strncmp (bfd_section_name (s
), ".rela", 5) == 0)
4525 if (s
->size
!= 0 && s
!= elf_hash_table (info
)->srelplt
)
4528 /* We use the reloc_count field as a counter if we need
4529 to copy relocs into the output file. */
4534 /* It's not one of our sections, so don't allocate space. */
4540 /* If we don't need this section, strip it from the
4541 output file. This is mostly to handle .rela.bss and
4542 .rela.plt. We must create both sections in
4543 create_dynamic_sections, because they must be created
4544 before the linker maps input sections to output
4545 sections. The linker does that before
4546 adjust_dynamic_symbol is called, and it is that
4547 function which decides whether anything needs to go
4548 into these sections. */
4549 s
->flags
|= SEC_EXCLUDE
;
4553 /* Allocate memory for the section contents. We use bfd_zalloc
4554 here in case unused entries are not reclaimed before the
4555 section's contents are written out. This should not happen,
4556 but this way if it does, we get a R_NDS32_NONE reloc instead
4558 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
4559 if (s
->contents
== NULL
)
4564 if (htab
->root
.dynamic_sections_created
)
4566 /* Add some entries to the .dynamic section. We fill in the
4567 values later, in nds32_elf_finish_dynamic_sections, but we
4568 must add the entries now so that we get the correct size for
4569 the .dynamic section. The DT_DEBUG entry is filled in by the
4570 dynamic linker and used by the debugger. */
4571 #define add_dynamic_entry(TAG, VAL) \
4572 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4574 if (bfd_link_executable (info
))
4576 if (!add_dynamic_entry (DT_DEBUG
, 0))
4580 if (elf_hash_table (info
)->splt
->size
!= 0)
4582 if (!add_dynamic_entry (DT_PLTGOT
, 0)
4583 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
4584 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
4585 || !add_dynamic_entry (DT_JMPREL
, 0))
4589 if (htab
->tls_desc_trampoline
&& plt
)
4591 if (htab
->dt_tlsdesc_plt
4592 && (!add_dynamic_entry (DT_TLSDESC_PLT
, 0)
4593 || !add_dynamic_entry (DT_TLSDESC_GOT
, 0)))
4599 if (!add_dynamic_entry (DT_RELA
, 0)
4600 || !add_dynamic_entry (DT_RELASZ
, 0)
4601 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
4604 /* If any dynamic relocs apply to a read-only section,
4605 then we need a DT_TEXTREL entry. */
4606 if ((info
->flags
& DF_TEXTREL
) == 0)
4607 elf_link_hash_traverse (&htab
->root
, maybe_set_textrel
,
4610 if ((info
->flags
& DF_TEXTREL
) != 0)
4612 if (!add_dynamic_entry (DT_TEXTREL
, 0))
4617 #undef add_dynamic_entry
4622 static bfd_reloc_status_type
4623 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4624 bfd_vma relocation
, bfd_byte
*location
)
4628 bfd_reloc_status_type flag
;
4629 unsigned int rightshift
= howto
->rightshift
;
4630 unsigned int bitpos
= howto
->bitpos
;
4632 /* If the size is negative, negate RELOCATION. This isn't very
4634 if (howto
->size
< 0)
4635 relocation
= -relocation
;
4637 /* Get the value we are going to relocate. */
4638 size
= bfd_get_reloc_size (howto
);
4645 return bfd_reloc_ok
;
4647 x
= bfd_getb16 (location
);
4650 x
= bfd_getb32 (location
);
4654 /* Check for overflow. FIXME: We may drop bits during the addition
4655 which we don't check for. We must either check at every single
4656 operation, which would be tedious, or we must do the computations
4657 in a type larger than bfd_vma, which would be inefficient. */
4658 flag
= bfd_reloc_ok
;
4659 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4661 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4664 /* Get the values to be added together. For signed and unsigned
4665 relocations, we assume that all values should be truncated to
4666 the size of an address. For bitfields, all the bits matter.
4667 See also bfd_check_overflow. */
4668 fieldmask
= N_ONES (howto
->bitsize
);
4669 signmask
= ~fieldmask
;
4670 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4671 a
= (relocation
& addrmask
) >> rightshift
;
4672 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4674 switch (howto
->complain_on_overflow
)
4676 case complain_overflow_signed
:
4677 /* If any sign bits are set, all sign bits must be set.
4678 That is, A must be a valid negative address after
4680 signmask
= ~(fieldmask
>> 1);
4683 case complain_overflow_bitfield
:
4684 /* Much like the signed check, but for a field one bit
4685 wider. We allow a bitfield to represent numbers in the
4686 range -2**n to 2**n-1, where n is the number of bits in the
4687 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4688 can't overflow, which is exactly what we want. */
4690 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4691 flag
= bfd_reloc_overflow
;
4693 /* We only need this next bit of code if the sign bit of B
4694 is below the sign bit of A. This would only happen if
4695 SRC_MASK had fewer bits than BITSIZE. Note that if
4696 SRC_MASK has more bits than BITSIZE, we can get into
4697 trouble; we would need to verify that B is in range, as
4698 we do for A above. */
4699 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4702 /* Set all the bits above the sign bit. */
4705 /* Now we can do the addition. */
4708 /* See if the result has the correct sign. Bits above the
4709 sign bit are junk now; ignore them. If the sum is
4710 positive, make sure we did not have all negative inputs;
4711 if the sum is negative, make sure we did not have all
4712 positive inputs. The test below looks only at the sign
4713 bits, and it really just
4714 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4716 We mask with addrmask here to explicitly allow an address
4717 wrap-around. The Linux kernel relies on it, and it is
4718 the only way to write assembler code which can run when
4719 loaded at a location 0x80000000 away from the location at
4720 which it is linked. */
4721 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4722 flag
= bfd_reloc_overflow
;
4726 case complain_overflow_unsigned
:
4727 /* Checking for an unsigned overflow is relatively easy:
4728 trim the addresses and add, and trim the result as well.
4729 Overflow is normally indicated when the result does not
4730 fit in the field. However, we also need to consider the
4731 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4732 input is 0x80000000, and bfd_vma is only 32 bits; then we
4733 will get sum == 0, but there is an overflow, since the
4734 inputs did not fit in the field. Instead of doing a
4735 separate test, we can check for this by or-ing in the
4736 operands when testing for the sum overflowing its final
4738 sum
= (a
+ b
) & addrmask
;
4739 if ((a
| b
| sum
) & signmask
)
4740 flag
= bfd_reloc_overflow
;
4748 /* Put RELOCATION in the right bits. */
4749 relocation
>>= (bfd_vma
) rightshift
;
4750 relocation
<<= (bfd_vma
) bitpos
;
4752 /* Add RELOCATION to the right bits of X. */
4754 Because the relaxation may generate duplicate relocation at one address,
4755 an addition to immediate in the instruction may cause the relocation added
4757 This bug should be fixed in assembler, but a check is also needed here. */
4758 if (howto
->partial_inplace
)
4759 x
= ((x
& ~howto
->dst_mask
)
4760 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4762 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4765 /* Put the relocated value back in the object file. */
4775 bfd_putb16 (x
, location
);
4778 bfd_putb32 (x
, location
);
4785 static bfd_reloc_status_type
4786 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4787 asection
*input_section
, bfd_byte
*contents
,
4788 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4792 /* Sanity check the address. */
4793 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4794 return bfd_reloc_outofrange
;
4796 /* This function assumes that we are dealing with a basic relocation
4797 against a symbol. We want to compute the value of the symbol to
4798 relocate to. This is just VALUE, the value of the symbol, plus
4799 ADDEND, any addend associated with the reloc. */
4800 relocation
= value
+ addend
;
4802 /* If the relocation is PC relative, we want to set RELOCATION to
4803 the distance between the symbol (currently in RELOCATION) and the
4804 location we are relocating. If pcrel_offset is FALSE we do not
4805 need to subtract out the offset of the location within the
4806 section (which is just ADDRESS). */
4807 if (howto
->pc_relative
)
4809 relocation
-= (input_section
->output_section
->vma
4810 + input_section
->output_offset
);
4811 if (howto
->pcrel_offset
)
4812 relocation
-= address
;
4815 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4816 contents
+ address
);
4820 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4822 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4823 asection
*input_sec
,
4824 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4827 FILE *sym_ld_script
= NULL
;
4828 struct elf_nds32_link_hash_table
*table
;
4830 table
= nds32_elf_hash_table (info
);
4831 sym_ld_script
= table
->sym_ld_script
;
4835 if (!h
|| !name
|| *name
== '\0')
4838 if (input_sec
->flags
& SEC_EXCLUDE
)
4841 if (!check_start_export_sym
)
4843 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4844 check_start_export_sym
= 1;
4847 if (h
->root
.type
== bfd_link_hash_defined
4848 || h
->root
.type
== bfd_link_hash_defweak
)
4850 if (!h
->root
.u
.def
.section
->output_section
)
4853 if (bfd_is_const_section (input_sec
))
4854 source
= input_sec
->name
;
4856 source
= bfd_get_filename (input_sec
->owner
);
4858 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4859 h
->root
.root
.string
,
4860 (long) (h
->root
.u
.def
.value
4861 + h
->root
.u
.def
.section
->output_section
->vma
4862 + h
->root
.u
.def
.section
->output_offset
), source
);
4868 /* Relocate an NDS32/D ELF section.
4869 There is some attempt to make this function usable for many architectures,
4870 both for RELA and REL type relocs, if only to serve as a learning tool.
4872 The RELOCATE_SECTION function is called by the new ELF backend linker
4873 to handle the relocations for a section.
4875 The relocs are always passed as Rela structures; if the section
4876 actually uses Rel structures, the r_addend field will always be
4879 This function is responsible for adjust the section contents as
4880 necessary, and (if using Rela relocs and generating a
4881 relocatable output file) adjusting the reloc addend as
4884 This function does not have to worry about setting the reloc
4885 address or the reloc symbol index.
4887 LOCAL_SYMS is a pointer to the swapped in local symbols.
4889 LOCAL_SECTIONS is an array giving the section in the input file
4890 corresponding to the st_shndx field of each local symbol.
4892 The global hash table entry for the global symbols can be found
4893 via elf_sym_hashes (input_bfd).
4895 When generating relocatable output, this function must handle
4896 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4897 going to be the section symbol corresponding to the output
4898 section, which means that the addend must be adjusted
4901 /* Return the base VMA address which should be subtracted from real addresses
4902 when resolving @dtpoff relocation.
4903 This is PT_TLS segment p_vaddr. */
4905 /* Return the relocation value for @tpoff relocation
4906 if STT_TLS virtual address is ADDRESS. */
4908 /* Return the relocation value for @gottpoff relocation
4909 if STT_TLS virtual address is ADDRESS. */
4912 gottpoff (struct bfd_link_info
*info
, bfd_vma address
)
4917 /* If tls_sec is NULL, we should have signalled an error already. */
4918 if (elf_hash_table (info
)->tls_sec
== NULL
)
4921 tp_base
= elf_hash_table (info
)->tls_sec
->vma
;
4922 tp_offset
= address
- tp_base
;
4928 patch_tls_desc_to_ie (bfd_byte
*contents
, Elf_Internal_Rela
*rel
, bfd
*ibfd
)
4930 /* TLS_GD/TLS_LD model #1
4931 46 00 00 00 sethi $r0,#0x0
4932 58 00 00 00 ori $r0,$r0,#0x0
4933 40 00 74 00 add $r0,$r0,$gp
4934 04 10 00 00 lwi $r1,[$r0+#0x0]
4935 4b e0 04 01 jral $lp,$r1 */
4937 /* TLS_GD/TLS_LD model #2
4938 46 00 00 00 sethi $r0,#0x0
4939 58 00 00 00 ori $r0,$r0,#0x0
4940 38 10 74 02 lw $r1,[$r0+($gp<<#0x0)]
4941 40 00 74 00 add $r0,$r0,$gp
4942 4b e0 04 01 jral $lp,$r1 */
4944 /* TLS_IE model (non-PIC)
4945 46 00 00 00 sethi $r0,#0x0
4946 04 00 00 00 lwi $r0,[$r0+#0x0]
4947 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4949 /* TLS_IE model (PIC)
4950 46 00 00 00 sethi $r0,#0x0
4951 58 00 00 00 ori $r0,$r0,#0x0
4952 38 00 74 02 lw $r0,[$r0+($gp<<#0x0)]
4953 38 00 64 02 lw $r0,[$r0+($r25<<#0x0)] */
4955 /* TLS_GD_TO_IE model
4956 46 00 00 00 sethi $r0,#0x0
4957 58 00 00 00 ori $r0,$r0,#0x0
4958 40 00 74 00 add $r0,$rM,$gp
4959 04 00 00 01 lwi $r0,[$r0+#0x4]
4960 40 00 64 00 add $r0,$r0,$r25 */
4962 bfd_boolean rz
= FALSE
;
4972 0x40007400, /* add $r0,$rM,$gp */
4973 0x04000001, /* lwi $r0,[$r0+#0x4] */
4974 0x40006400, /* add $r0,$r0,$r25 */
4979 { 0x40000000, 0xfe0003ff },
4980 { 0x04000000, 0xfe000000 },
4981 { 0x4be00001, 0xffff83ff },
4986 { 0x38007402, 0xfe007fff },
4987 { 0x40007400, 0xfe007fff },
4988 { 0x4be00001, 0xffff83ff },
4991 unsigned char *p
= contents
+ rel
->r_offset
;
4994 uint32_t regidx
= 0;
4995 insn
= bfd_getb32 (p
);
4996 if (INSN_SETHI
== (0xfe0fffffu
& insn
))
4998 regidx
= 0x1f & (insn
>> 20);
5002 insn
= bfd_getb32 (p
);
5003 if (INSN_ORI
== (0xfe007fffu
& insn
))
5005 regidx
= 0x1f & (insn
>> 20);
5009 if (patch
[2] == bfd_getb32 (p
+ 8)) /* Character instruction. */
5011 /* already patched? */
5012 if ((patch
[0] == (0xfff07fffu
& bfd_getb32 (p
+ 0))) &&
5013 (patch
[1] == bfd_getb32 (p
+ 4)))
5016 else if (mode0
[0].opcode
== (mode0
[0].mask
& bfd_getb32 (p
+ 0)))
5018 if ((mode0
[1].opcode
== (mode0
[1].mask
& bfd_getb32 (p
+ 4))) &&
5019 (mode0
[2].opcode
== (mode0
[2].mask
& bfd_getb32 (p
+ 8))))
5021 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
5022 bfd_putb32 (patch
[1], p
+ 4);
5023 bfd_putb32 (patch
[2], p
+ 8);
5027 else if (mode1
[0].opcode
== (mode1
[0].mask
& bfd_getb32 (p
+ 0)))
5029 if ((mode1
[1].opcode
== (mode1
[1].mask
& bfd_getb32 (p
+ 4))) &&
5030 (mode1
[2].opcode
== (mode1
[2].mask
& bfd_getb32 (p
+ 8))))
5032 bfd_putb32 (patch
[0] | (regidx
<< 15), p
+ 0);
5033 bfd_putb32 (patch
[1], p
+ 4);
5034 bfd_putb32 (patch
[2], p
+ 8);
5041 printf ("%s: %s @ 0x%08x\n", __func__
, bfd_get_filename (ibfd
),
5042 (int) rel
->r_offset
);
5043 BFD_ASSERT(0); /* Unsupported pattern. */
5049 static enum elf_nds32_tls_type
5050 get_tls_type (enum elf_nds32_reloc_type r_type
, struct elf_link_hash_entry
*h
);
5053 ones32 (register unsigned int x
)
5055 /* 32-bit recursive reduction using SWAR...
5056 but first step is mapping 2-bit values
5057 into sum of 2 1-bit values in sneaky way. */
5058 x
-= ((x
>> 1) & 0x55555555);
5059 x
= (((x
>> 2) & 0x33333333) + (x
& 0x33333333));
5060 x
= (((x
>> 4) + x
) & 0x0f0f0f0f);
5063 return (x
& 0x0000003f);
5068 fls (register unsigned int x
)
5070 return ffs (x
& (-x
));
5072 #endif /* !HAVE_FLS */
5074 #define nds32_elf_local_tlsdesc_gotent(bfd) \
5075 (elf_nds32_tdata (bfd)->local_tlsdesc_gotent)
5078 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
5079 struct bfd_link_info
* info
,
5081 asection
* input_section
,
5082 bfd_byte
* contents
,
5083 Elf_Internal_Rela
* relocs
,
5084 Elf_Internal_Sym
* local_syms
,
5085 asection
** local_sections
)
5087 Elf_Internal_Shdr
*symtab_hdr
;
5088 struct elf_link_hash_entry
**sym_hashes
;
5089 Elf_Internal_Rela
*rel
, *relend
;
5090 bfd_boolean ret
= TRUE
; /* Assume success. */
5092 bfd_reloc_status_type r
;
5093 const char *errmsg
= NULL
;
5095 struct elf_link_hash_table
*ehtab
;
5096 struct elf_nds32_link_hash_table
*htab
;
5098 bfd_vma
*local_got_offsets
;
5099 asection
*sgot
, *splt
, *sreloc
;
5100 bfd_vma high_address
;
5101 struct elf_nds32_link_hash_table
*table
;
5102 int eliminate_gc_relocs
;
5103 bfd_vma fpbase_addr
;
5105 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
5106 sym_hashes
= elf_sym_hashes (input_bfd
);
5107 ehtab
= elf_hash_table (info
);
5108 htab
= nds32_elf_hash_table (info
);
5109 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
5111 dynobj
= htab
->root
.dynobj
;
5112 local_got_offsets
= elf_local_got_offsets (input_bfd
);
5119 relend
= relocs
+ input_section
->reloc_count
;
5121 table
= nds32_elf_hash_table (info
);
5122 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
5124 /* By this time, we can adjust the value of _SDA_BASE_. */
5125 /* Explain _SDA_BASE_ */
5126 if ((!bfd_link_relocatable (info
)))
5128 is_SDA_BASE_set
= 1;
5129 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
5130 if (r
!= bfd_reloc_ok
)
5134 /* Do TLS model conversion once at first. */
5135 nds32_elf_unify_tls_model (input_bfd
, input_section
, contents
, info
);
5137 /* Use gp as fp to prevent truncated fit. Because in relaxation time
5138 the fp value is set as gp, and it has be reverted for instruction
5140 fpbase_addr
= elf_gp (output_bfd
);
5142 /* Deal with (dynamic) relocations. */
5143 for (rel
= relocs
; rel
< relend
; rel
++)
5145 enum elf_nds32_reloc_type r_type
;
5146 reloc_howto_type
*howto
= NULL
;
5147 unsigned long r_symndx
;
5148 struct elf_link_hash_entry
*h
= NULL
;
5149 Elf_Internal_Sym
*sym
= NULL
;
5152 bfd_vma relocation_sym
= 0xdeadbeef;
5153 Elf_Internal_Rela
*lorel
;
5156 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
5157 ensure it's zero (we use REL relocs, not RELA). Therefore this
5158 should be assigning zero to `addend', but for clarity we use
5161 bfd_vma addend
= rel
->r_addend
;
5162 bfd_vma offset
= rel
->r_offset
;
5164 r_type
= ELF32_R_TYPE (rel
->r_info
);
5165 if (r_type
>= R_NDS32_max
)
5167 /* xgettext:c-format */
5168 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
5170 bfd_set_error (bfd_error_bad_value
);
5175 if (r_type
== R_NDS32_GNU_VTENTRY
5176 || r_type
== R_NDS32_GNU_VTINHERIT
5177 || r_type
== R_NDS32_NONE
5178 || r_type
== R_NDS32_RELA_GNU_VTENTRY
5179 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
5180 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
5181 || r_type
== R_NDS32_DATA
5182 || r_type
== R_NDS32_TRAN
)
5185 /* If we enter the fp-as-gp region. Resolve the address
5187 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
5188 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5192 /* Distance to relocation of best fp-base is encoded in R_SYM. */
5193 dist
= rel
->r_addend
>> 16;
5194 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
5195 local_syms
, symtab_hdr
);
5197 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
5198 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
5200 fpbase_addr
= elf_gp (output_bfd
);
5203 /* Skip the relocations used for relaxation. */
5204 /* We have to update LONGCALL and LONGJUMP
5205 relocations when generating the relocatable files. */
5206 if (!bfd_link_relocatable (info
)
5207 && (r_type
>= R_NDS32_RELAX_ENTRY
5208 || (r_type
>= R_NDS32_LONGCALL4
5209 && r_type
<= R_NDS32_LONGJUMP7
)))
5212 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
5213 r_symndx
= ELF32_R_SYM (rel
->r_info
);
5215 /* This is a final link. */
5220 if (r_symndx
< symtab_hdr
->sh_info
)
5223 sym
= local_syms
+ r_symndx
;
5224 sec
= local_sections
[r_symndx
];
5226 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
5227 addend
= rel
->r_addend
;
5229 /* keep symbol location for static TLS_IE GOT entry */
5230 relocation_sym
= relocation
;
5231 if (bfd_link_relocatable (info
))
5233 /* This is a relocatable link. We don't have to change
5234 anything, unless the reloc is against a section symbol,
5235 in which case we have to adjust according to where the
5236 section symbol winds up in the output section. */
5237 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
5238 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
5245 /* External symbol. */
5246 if (bfd_link_relocatable (info
))
5248 bfd_boolean warned
, ignored
, unresolved_reloc
;
5249 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
5251 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
5252 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
5253 relocation
, unresolved_reloc
, warned
,
5256 /* keep symbol location for static TLS_IE GOT entry */
5257 relocation_sym
= relocation
;
5259 /* la $fp, _FP_BASE_ is per-function (region).
5260 Handle it specially. */
5261 switch ((int) r_type
)
5263 case R_NDS32_HI20_RELA
:
5264 case R_NDS32_LO12S0_RELA
:
5265 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5268 if (!bfd_link_pie (info
))
5271 ("%pB: warning: _FP_BASE_ setting insns relaxation failed.",
5274 relocation
= fpbase_addr
;
5277 case R_NDS32_SDA19S0_RELA
:
5278 case R_NDS32_SDA15S0_RELA
:
5279 case R_NDS32_20_RELA
:
5280 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
5283 relocation
= fpbase_addr
;
5289 /* Sanity check the address. */
5290 if (offset
> high_address
)
5292 r
= bfd_reloc_outofrange
;
5296 if (r_type
>= R_NDS32_RELAX_ENTRY
)
5299 switch ((int) r_type
)
5301 case R_NDS32_GOTOFF
:
5302 /* Relocation is relative to the start of the global offset
5303 table (for ld24 rx, #uimm24), e.g. access at label+addend
5305 ld24 rx. #label@GOTOFF + addend
5307 case R_NDS32_GOTOFF_HI20
:
5308 case R_NDS32_GOTOFF_LO12
:
5309 case R_NDS32_GOTOFF_LO15
:
5310 case R_NDS32_GOTOFF_LO19
:
5311 BFD_ASSERT (sgot
!= NULL
);
5313 relocation
-= elf_gp (output_bfd
);
5316 case R_NDS32_9_PLTREL
:
5317 case R_NDS32_25_PLTREL
:
5318 /* Relocation is to the entry for this symbol in the
5319 procedure linkage table. */
5321 /* The native assembler will generate a 25_PLTREL reloc
5322 for a local symbol if you assemble a call from one
5323 section to another when using -K pic. */
5327 if (h
->forced_local
)
5330 /* We didn't make a PLT entry for this symbol. This
5331 happens when statically linking PIC code, or when
5332 using -Bsymbolic. */
5333 if (h
->plt
.offset
== (bfd_vma
) - 1)
5336 relocation
= (splt
->output_section
->vma
5337 + splt
->output_offset
+ h
->plt
.offset
);
5340 case R_NDS32_PLT_GOTREL_HI20
:
5341 case R_NDS32_PLT_GOTREL_LO12
:
5342 case R_NDS32_PLT_GOTREL_LO15
:
5343 case R_NDS32_PLT_GOTREL_LO19
:
5344 case R_NDS32_PLT_GOTREL_LO20
:
5347 || h
->plt
.offset
== (bfd_vma
) -1
5348 || (bfd_link_pie (info
) && h
->def_regular
))
5350 /* Maybe we should find better checking to optimize
5351 PIE PLT relocations. */
5352 /* We didn't make a PLT entry for this symbol. This
5353 happens when statically linking PIC code, or when
5354 using -Bsymbolic. */
5356 h
->plt
.offset
= (bfd_vma
) -1; /* Cancel PLT trampoline. */
5357 relocation
-= elf_gp (output_bfd
);
5361 relocation
= (splt
->output_section
->vma
5362 + splt
->output_offset
+ h
->plt
.offset
);
5364 relocation
-= elf_gp (output_bfd
);
5367 case R_NDS32_PLTREL_HI20
:
5368 case R_NDS32_PLTREL_LO12
:
5370 /* Relocation is to the entry for this symbol in the
5371 procedure linkage table. */
5373 /* The native assembler will generate a 25_PLTREL reloc
5374 for a local symbol if you assemble a call from one
5375 section to another when using -K pic. */
5379 if (h
->forced_local
)
5382 if (h
->plt
.offset
== (bfd_vma
) - 1)
5383 /* We didn't make a PLT entry for this symbol. This
5384 happens when statically linking PIC code, or when
5385 using -Bsymbolic. */
5391 relocation
= (splt
->output_section
->vma
5392 + splt
->output_offset
5393 + h
->plt
.offset
+ 4)
5394 - (input_section
->output_section
->vma
5395 + input_section
->output_offset
5400 case R_NDS32_GOTPC20
:
5401 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5402 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
5403 relocation
= elf_gp (output_bfd
);
5406 case R_NDS32_GOTPC_HI20
:
5407 case R_NDS32_GOTPC_LO12
:
5408 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
5410 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
5411 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
5414 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
5415 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4) */
5416 relocation
= elf_gp (output_bfd
);
5417 relocation
-= (input_section
->output_section
->vma
5418 + input_section
->output_offset
+ rel
->r_offset
);
5423 case R_NDS32_GOT_HI20
:
5424 case R_NDS32_GOT_LO12
:
5425 case R_NDS32_GOT_LO15
:
5426 case R_NDS32_GOT_LO19
:
5427 /* Relocation is to the entry for this symbol in the global
5429 BFD_ASSERT (sgot
!= NULL
);
5433 /* External symbol */
5436 off
= h
->got
.offset
;
5437 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5438 dyn
= htab
->root
.dynamic_sections_created
;
5439 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
5440 bfd_link_pic (info
),
5442 || (bfd_link_pic (info
)
5445 || h
->forced_local
) && h
->def_regular
))
5447 /* This is actually a static link, or it is a
5448 -Bsymbolic link and the symbol is defined
5449 locally, or the symbol was forced to be local
5450 because of a version file. We must initialize
5451 this entry in the global offset table. Since the
5452 offset must always be a multiple of 4, we use the
5453 least significant bit to record whether we have
5454 initialized it already.
5456 When doing a dynamic link, we create a .rela.got
5457 relocation entry to initialize the value. This
5458 is done in the finish_dynamic_symbol routine. */
5459 if ((off
& 1) != 0) /* clear LSB */
5463 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5467 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5468 - elf_gp (output_bfd
);
5475 BFD_ASSERT (local_got_offsets
!= NULL
5476 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5478 off
= local_got_offsets
[r_symndx
];
5480 /* The offset must always be a multiple of 4. We use
5481 the least significant bit to record whether we have
5482 already processed this entry. */
5483 if ((off
& 1) != 0) /* clear LSB */
5487 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5489 if (bfd_link_pic (info
))
5492 Elf_Internal_Rela outrel
;
5494 /* We need to generate a R_NDS32_RELATIVE reloc
5495 for the dynamic linker. */
5496 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5497 BFD_ASSERT (srelgot
!= NULL
);
5499 outrel
.r_offset
= (elf_gp (output_bfd
)
5500 + sgot
->output_offset
+ off
);
5501 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5502 outrel
.r_addend
= relocation
;
5503 loc
= srelgot
->contents
;
5505 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5506 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5507 ++srelgot
->reloc_count
;
5509 local_got_offsets
[r_symndx
] |= 1;
5511 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5512 - elf_gp (output_bfd
);
5517 case R_NDS32_16_RELA
:
5518 case R_NDS32_20_RELA
:
5519 case R_NDS32_5_RELA
:
5520 case R_NDS32_32_RELA
:
5521 case R_NDS32_9_PCREL_RELA
:
5522 case R_NDS32_WORD_9_PCREL_RELA
:
5523 case R_NDS32_10_UPCREL_RELA
:
5524 case R_NDS32_15_PCREL_RELA
:
5525 case R_NDS32_17_PCREL_RELA
:
5526 case R_NDS32_25_PCREL_RELA
:
5527 case R_NDS32_HI20_RELA
:
5528 case R_NDS32_LO12S3_RELA
:
5529 case R_NDS32_LO12S2_RELA
:
5530 case R_NDS32_LO12S2_DP_RELA
:
5531 case R_NDS32_LO12S2_SP_RELA
:
5532 case R_NDS32_LO12S1_RELA
:
5533 case R_NDS32_LO12S0_RELA
:
5534 case R_NDS32_LO12S0_ORI_RELA
:
5535 if (bfd_link_pic (info
) && r_symndx
!= 0
5536 && (input_section
->flags
& SEC_ALLOC
) != 0
5537 && (eliminate_gc_relocs
== 0
5538 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
5539 && ((r_type
!= R_NDS32_9_PCREL_RELA
5540 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
5541 && r_type
!= R_NDS32_10_UPCREL_RELA
5542 && r_type
!= R_NDS32_15_PCREL_RELA
5543 && r_type
!= R_NDS32_17_PCREL_RELA
5544 && r_type
!= R_NDS32_25_PCREL_RELA
5545 && !(r_type
== R_NDS32_32_RELA
5546 && strcmp (input_section
->name
, ".eh_frame") == 0))
5547 || (h
!= NULL
&& h
->dynindx
!= -1
5548 && (!info
->symbolic
|| !h
->def_regular
))))
5550 Elf_Internal_Rela outrel
;
5551 bfd_boolean skip
, relocate
;
5554 /* When generating a shared object, these relocations
5555 are copied into the output file to be resolved at run
5562 name
= bfd_elf_string_from_elf_section
5563 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
5564 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
5568 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
5569 && strcmp (bfd_section_name (input_section
),
5572 sreloc
= bfd_get_section_by_name (dynobj
, name
);
5573 BFD_ASSERT (sreloc
!= NULL
);
5579 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
5583 if (outrel
.r_offset
== (bfd_vma
) - 1)
5585 else if (outrel
.r_offset
== (bfd_vma
) - 2)
5586 skip
= TRUE
, relocate
= TRUE
;
5587 outrel
.r_offset
+= (input_section
->output_section
->vma
5588 + input_section
->output_offset
);
5591 memset (&outrel
, 0, sizeof outrel
);
5592 else if (r_type
== R_NDS32_17_PCREL_RELA
5593 || r_type
== R_NDS32_15_PCREL_RELA
5594 || r_type
== R_NDS32_25_PCREL_RELA
)
5596 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
5597 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5598 outrel
.r_addend
= rel
->r_addend
;
5602 /* h->dynindx may be -1 if this symbol was marked to
5605 || ((info
->symbolic
|| h
->dynindx
== -1)
5607 || (bfd_link_pie (info
) && h
->def_regular
))
5610 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5611 outrel
.r_addend
= relocation
+ rel
->r_addend
;
5615 h
->plt
.offset
= (bfd_vma
) -1; /* cancel PLT trampoline. */
5617 BFD_ASSERT (sgot
!= NULL
);
5618 /* If we did not allocate got entry for the symbol,
5619 we can not fill the nonexistent got entry. */
5620 if (h
->got
.offset
!= (bfd_vma
) -1
5621 && (h
->got
.offset
& 1) == 0)
5623 bfd_put_32 (output_bfd
, outrel
.r_addend
,
5624 sgot
->contents
+ h
->got
.offset
);
5630 if (h
->dynindx
== -1)
5633 (_("%pB: relocation %s against `%s' can not be used when "
5634 "making a shared object; recompile with -fPIC"),
5635 input_bfd
, nds32_elf_howto_table
[r_type
].name
, h
->root
.root
.string
);
5636 bfd_set_error (bfd_error_bad_value
);
5640 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
5641 outrel
.r_addend
= rel
->r_addend
;
5645 loc
= sreloc
->contents
;
5646 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
5647 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5648 ++sreloc
->reloc_count
;
5650 /* If this reloc is against an external symbol, we do
5651 not want to fiddle with the addend. Otherwise, we
5652 need to include the symbol value so that it becomes
5653 an addend for the dynamic reloc. */
5659 case R_NDS32_25_ABS_RELA
:
5660 if (bfd_link_pic (info
))
5663 (_("%pB: warning: %s unsupported in shared mode"),
5664 input_bfd
, "R_NDS32_25_ABS_RELA");
5669 case R_NDS32_9_PCREL
:
5670 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5672 sec
, relocation
, addend
);
5676 /* We allow an arbitrary number of HI20 relocs before the
5677 LO12 reloc. This permits gcc to emit the HI and LO relocs
5679 for (lorel
= rel
+ 1;
5681 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5684 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5685 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5686 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5687 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5689 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5690 contents
, relocation
+ addend
);
5694 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5695 contents
, offset
, relocation
,
5699 case R_NDS32_GOT17S2_RELA
:
5700 case R_NDS32_GOT15S2_RELA
:
5701 BFD_ASSERT (sgot
!= NULL
);
5707 off
= h
->got
.offset
;
5708 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5710 dyn
= htab
->root
.dynamic_sections_created
;
5711 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5712 (dyn
, bfd_link_pic (info
), h
)
5713 || (bfd_link_pic (info
)
5719 /* This is actually a static link, or it is a
5720 -Bsymbolic link and the symbol is defined
5721 locally, or the symbol was forced to be local
5722 because of a version file. We must initialize
5723 this entry in the global offset table. Since the
5724 offset must always be a multiple of 4, we use the
5725 least significant bit to record whether we have
5726 initialized it already.
5728 When doing a dynamic link, we create a .rela.got
5729 relocation entry to initialize the value. This
5730 is done in the finish_dynamic_symbol routine. */
5735 bfd_put_32 (output_bfd
, relocation
,
5736 sgot
->contents
+ off
);
5745 BFD_ASSERT (local_got_offsets
!= NULL
5746 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5748 off
= local_got_offsets
[r_symndx
];
5750 /* The offset must always be a multiple of 4. We use
5751 the least significant bit to record whether we have
5752 already processed this entry. */
5757 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5759 if (bfd_link_pic (info
))
5762 Elf_Internal_Rela outrel
;
5764 /* We need to generate a R_NDS32_RELATIVE reloc
5765 for the dynamic linker. */
5766 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5767 BFD_ASSERT (srelgot
!= NULL
);
5769 outrel
.r_offset
= (elf_gp (output_bfd
)
5770 + sgot
->output_offset
+ off
);
5771 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5772 outrel
.r_addend
= relocation
;
5773 loc
= srelgot
->contents
;
5775 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5776 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5777 ++srelgot
->reloc_count
;
5779 local_got_offsets
[r_symndx
] |= 1;
5782 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5783 - elf_gp (output_bfd
);
5785 if (relocation
& align
)
5787 /* Incorrect alignment. */
5789 (_("%pB: warning: unaligned access to GOT entry"), input_bfd
);
5791 r
= bfd_reloc_dangerous
;
5796 case R_NDS32_SDA16S3_RELA
:
5797 case R_NDS32_SDA15S3_RELA
:
5798 case R_NDS32_SDA15S3
:
5802 case R_NDS32_SDA17S2_RELA
:
5803 case R_NDS32_SDA15S2_RELA
:
5804 case R_NDS32_SDA12S2_SP_RELA
:
5805 case R_NDS32_SDA12S2_DP_RELA
:
5806 case R_NDS32_SDA15S2
:
5807 case R_NDS32_SDA_FP7U2_RELA
:
5811 case R_NDS32_SDA18S1_RELA
:
5812 case R_NDS32_SDA15S1_RELA
:
5813 case R_NDS32_SDA15S1
:
5817 case R_NDS32_SDA19S0_RELA
:
5818 case R_NDS32_SDA15S0_RELA
:
5819 case R_NDS32_SDA15S0
:
5822 BFD_ASSERT (sec
!= NULL
);
5824 /* If the symbol is in the abs section, the out_bfd will be null.
5825 This happens when the relocation has a symbol@GOTOFF. */
5826 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5827 if (r
!= bfd_reloc_ok
)
5830 (_("%pB: warning: relocate SDA_BASE failed"), input_bfd
);
5835 /* At this point `relocation' contains the object's
5837 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5839 relocation
-= fpbase_addr
;
5843 /* Now it contains the offset from _SDA_BASE_. */
5845 /* Make sure alignment is correct. */
5847 if (relocation
& align
)
5849 /* Incorrect alignment. */
5851 /* xgettext:c-format */
5852 (_("%pB(%pA): warning: unaligned small data access"
5854 input_bfd
, input_section
, r_type
);
5860 case R_NDS32_17IFC_PCREL_RELA
:
5861 case R_NDS32_10IFCU_PCREL_RELA
:
5865 case R_NDS32_TLS_LE_HI20
:
5866 case R_NDS32_TLS_LE_LO12
:
5867 case R_NDS32_TLS_LE_20
:
5868 case R_NDS32_TLS_LE_15S0
:
5869 case R_NDS32_TLS_LE_15S1
:
5870 case R_NDS32_TLS_LE_15S2
:
5871 /* We do not have garbage collection for got entries.
5872 Therefore, IE to LE may have one empty entry, and DESC to
5874 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5875 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5878 case R_NDS32_TLS_IE_HI20
:
5879 case R_NDS32_TLS_IE_LO12S2
:
5880 case R_NDS32_TLS_DESC_HI20
:
5881 case R_NDS32_TLS_DESC_LO12
:
5882 case R_NDS32_TLS_IE_LO12
:
5883 case R_NDS32_TLS_IEGP_HI20
:
5884 case R_NDS32_TLS_IEGP_LO12
:
5885 case R_NDS32_TLS_IEGP_LO12S2
:
5887 /* Relocation is to the entry for this symbol in the global
5889 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
5891 Elf_Internal_Rela outrel
;
5895 eff_tls_type
= org_tls_type
= get_tls_type (r_type
, h
);
5897 BFD_ASSERT (sgot
!= NULL
);
5902 off
= h
->got
.offset
;
5903 BFD_ASSERT (off
!= (bfd_vma
) -1);
5904 dyn
= htab
->root
.dynamic_sections_created
;
5905 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5906 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5907 && (!bfd_link_pic (info
)
5908 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5913 BFD_ASSERT (local_got_offsets
!= NULL
5914 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5915 off
= local_got_offsets
[r_symndx
];
5916 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5919 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5921 if (1 < ones32 (tls_type
))
5923 eff_tls_type
= 1 << (fls (tls_type
) - 1);
5924 /* TLS model shall be handled in nds32_elf_unify_tls_model (). */
5926 /* TLS model X -> LE is not implement yet!
5928 if (eff_tls_type
== GOT_TLS_LE
)
5930 eff_tls_type
= 1 << (fls (tls_type
^ eff_tls_type
) - 1);
5934 /* The offset must always be a multiple of 4. We use
5935 the least significant bit to record whether we have
5936 already processed this entry. */
5937 bfd_boolean need_relocs
= FALSE
;
5938 srelgot
= ehtab
->srelgot
;
5939 if ((bfd_link_pic (info
) || indx
!= 0)
5940 && (h
== NULL
|| ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5941 || h
->root
.type
!= bfd_link_hash_undefweak
))
5944 BFD_ASSERT (srelgot
!= NULL
);
5952 if (eff_tls_type
& GOT_TLS_DESC
)
5954 relocation
-= elf_gp (output_bfd
);
5955 if ((R_NDS32_TLS_DESC_HI20
== r_type
) && (!need_relocs
))
5957 /* TLS model shall be converted. */
5961 else if (eff_tls_type
& GOT_TLS_IEGP
)
5963 relocation
-= elf_gp (output_bfd
);
5968 if ((eff_tls_type
& GOT_TLS_LE
) && (tls_type
^ eff_tls_type
))
5970 /* TLS model workaround shall be applied. */
5973 else if (eff_tls_type
& (GOT_TLS_IE
| GOT_TLS_IEGP
))
5975 if (eff_tls_type
& GOT_TLS_IEGP
)
5976 relocation
-= elf_gp(output_bfd
);
5981 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
5983 outrel
.r_addend
= 0;
5984 outrel
.r_offset
= (sgot
->output_section
->vma
5985 + sgot
->output_offset
+ off
);
5986 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_TPOFF
);
5988 elf32_nds32_add_dynreloc (output_bfd
, info
, srelgot
,
5993 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
5994 sgot
->contents
+ off
);
5997 else if (eff_tls_type
& GOT_TLS_DESC
)
5999 relocation
-= elf_gp (output_bfd
);
6003 outrel
.r_addend
= gottpoff (info
, relocation_sym
);
6005 outrel
.r_addend
= 0;
6006 outrel
.r_offset
= (sgot
->output_section
->vma
6007 + sgot
->output_offset
+ off
);
6008 outrel
.r_info
= ELF32_R_INFO (indx
, R_NDS32_TLS_DESC
);
6010 if (htab
->tls_desc_trampoline
)
6013 srelplt
= ehtab
->srelplt
;
6014 loc
= srelplt
->contents
;
6015 loc
+= htab
->next_tls_desc_index
++ * sizeof (Elf32_External_Rela
);
6016 BFD_ASSERT (loc
+ sizeof (Elf32_External_Rela
)
6017 <= srelplt
->contents
+ srelplt
->size
);
6019 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
6023 loc
= srelgot
->contents
;
6024 loc
+= srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
6025 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
6026 ++srelgot
->reloc_count
;
6032 bfd_put_32 (output_bfd
, 0xdeadbeef,
6033 sgot
->contents
+ off
);
6034 bfd_put_32 (output_bfd
, gottpoff (info
, relocation_sym
),
6035 sgot
->contents
+ off
+ 4);
6036 patch_tls_desc_to_ie (contents
, rel
, input_bfd
);
6042 /* TLS model workaround shall be applied. */
6049 local_got_offsets
[r_symndx
] |= 1;
6053 /* DON'T fall through. */
6056 /* OLD_NDS32_RELOC. */
6058 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
6059 contents
, offset
, relocation
, addend
);
6063 switch ((int) r_type
)
6065 case R_NDS32_20_RELA
:
6066 case R_NDS32_5_RELA
:
6067 case R_NDS32_9_PCREL_RELA
:
6068 case R_NDS32_WORD_9_PCREL_RELA
:
6069 case R_NDS32_10_UPCREL_RELA
:
6070 case R_NDS32_15_PCREL_RELA
:
6071 case R_NDS32_17_PCREL_RELA
:
6072 case R_NDS32_25_PCREL_RELA
:
6073 case R_NDS32_25_ABS_RELA
:
6074 case R_NDS32_HI20_RELA
:
6075 case R_NDS32_LO12S3_RELA
:
6076 case R_NDS32_LO12S2_RELA
:
6077 case R_NDS32_LO12S2_DP_RELA
:
6078 case R_NDS32_LO12S2_SP_RELA
:
6079 case R_NDS32_LO12S1_RELA
:
6080 case R_NDS32_LO12S0_RELA
:
6081 case R_NDS32_LO12S0_ORI_RELA
:
6082 case R_NDS32_SDA16S3_RELA
:
6083 case R_NDS32_SDA17S2_RELA
:
6084 case R_NDS32_SDA18S1_RELA
:
6085 case R_NDS32_SDA19S0_RELA
:
6086 case R_NDS32_SDA15S3_RELA
:
6087 case R_NDS32_SDA15S2_RELA
:
6088 case R_NDS32_SDA12S2_DP_RELA
:
6089 case R_NDS32_SDA12S2_SP_RELA
:
6090 case R_NDS32_SDA15S1_RELA
:
6091 case R_NDS32_SDA15S0_RELA
:
6092 case R_NDS32_SDA_FP7U2_RELA
:
6093 case R_NDS32_9_PLTREL
:
6094 case R_NDS32_25_PLTREL
:
6096 case R_NDS32_GOT_HI20
:
6097 case R_NDS32_GOT_LO12
:
6098 case R_NDS32_GOT_LO15
:
6099 case R_NDS32_GOT_LO19
:
6100 case R_NDS32_GOT15S2_RELA
:
6101 case R_NDS32_GOT17S2_RELA
:
6102 case R_NDS32_GOTPC20
:
6103 case R_NDS32_GOTPC_HI20
:
6104 case R_NDS32_GOTPC_LO12
:
6105 case R_NDS32_GOTOFF
:
6106 case R_NDS32_GOTOFF_HI20
:
6107 case R_NDS32_GOTOFF_LO12
:
6108 case R_NDS32_GOTOFF_LO15
:
6109 case R_NDS32_GOTOFF_LO19
:
6110 case R_NDS32_PLTREL_HI20
:
6111 case R_NDS32_PLTREL_LO12
:
6112 case R_NDS32_PLT_GOTREL_HI20
:
6113 case R_NDS32_PLT_GOTREL_LO12
:
6114 case R_NDS32_PLT_GOTREL_LO15
:
6115 case R_NDS32_PLT_GOTREL_LO19
:
6116 case R_NDS32_PLT_GOTREL_LO20
:
6117 case R_NDS32_17IFC_PCREL_RELA
:
6118 case R_NDS32_10IFCU_PCREL_RELA
:
6119 case R_NDS32_TLS_LE_HI20
:
6120 case R_NDS32_TLS_LE_LO12
:
6121 case R_NDS32_TLS_IE_HI20
:
6122 case R_NDS32_TLS_IE_LO12S2
:
6123 case R_NDS32_TLS_LE_20
:
6124 case R_NDS32_TLS_LE_15S0
:
6125 case R_NDS32_TLS_LE_15S1
:
6126 case R_NDS32_TLS_LE_15S2
:
6127 case R_NDS32_TLS_DESC_HI20
:
6128 case R_NDS32_TLS_DESC_LO12
:
6129 case R_NDS32_TLS_IE_LO12
:
6130 case R_NDS32_TLS_IEGP_HI20
:
6131 case R_NDS32_TLS_IEGP_LO12
:
6132 case R_NDS32_TLS_IEGP_LO12S2
:
6133 /* Instruction related relocs must handle endian properly. */
6134 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
6135 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
6136 input_section
, contents
,
6137 rel
->r_offset
, relocation
,
6142 /* All other relocs can use default handler. */
6143 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
6144 contents
, rel
->r_offset
,
6145 relocation
, rel
->r_addend
);
6151 if (r
!= bfd_reloc_ok
)
6153 /* FIXME: This should be generic enough to go in a utility. */
6157 name
= h
->root
.root
.string
;
6160 name
= bfd_elf_string_from_elf_section
6161 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
6162 if (name
== NULL
|| *name
== '\0')
6163 name
= bfd_section_name (sec
);
6171 case bfd_reloc_overflow
:
6172 (*info
->callbacks
->reloc_overflow
)
6173 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
6174 (bfd_vma
) 0, input_bfd
, input_section
, offset
);
6177 case bfd_reloc_undefined
:
6178 (*info
->callbacks
->undefined_symbol
)
6179 (info
, name
, input_bfd
, input_section
, offset
, TRUE
);
6182 case bfd_reloc_outofrange
:
6183 errmsg
= _("internal error: out of range error");
6186 case bfd_reloc_notsupported
:
6187 errmsg
= _("internal error: unsupported relocation error");
6190 case bfd_reloc_dangerous
:
6191 errmsg
= _("internal error: dangerous error");
6195 errmsg
= _("internal error: unknown error");
6199 (*info
->callbacks
->warning
) (info
, errmsg
, name
, input_bfd
,
6200 input_section
, offset
);
6206 /* Resotre header size to avoid overflow load. */
6207 if (elf_nds32_tdata (input_bfd
)->hdr_size
!= 0)
6208 symtab_hdr
->sh_size
= elf_nds32_tdata (input_bfd
)->hdr_size
;
6213 /* Finish up dynamic symbol handling. We set the contents of various
6214 dynamic sections here. */
6217 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
6218 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
6220 struct elf_link_hash_table
*ehtab
;
6221 struct elf_nds32_link_hash_entry
*hent
;
6224 ehtab
= elf_hash_table (info
);
6225 hent
= (struct elf_nds32_link_hash_entry
*) h
;
6227 if (h
->plt
.offset
!= (bfd_vma
) - 1)
6235 bfd_vma local_plt_offset
;
6236 Elf_Internal_Rela rela
;
6238 /* This symbol has an entry in the procedure linkage table. Set
6241 BFD_ASSERT (h
->dynindx
!= -1);
6244 sgot
= ehtab
->sgotplt
;
6245 srela
= ehtab
->srelplt
;
6246 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
6248 /* Get the index in the procedure linkage table which
6249 corresponds to this symbol. This is the index of this symbol
6250 in all the symbols for which we are making plt entries. The
6251 first entry in the procedure linkage table is reserved. */
6252 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
6254 /* Get the offset into the .got table of the entry that
6255 corresponds to this function. Each .got entry is 4 bytes.
6256 The first three are reserved. */
6257 got_offset
= (plt_index
+ 3) * 4;
6259 /* Fill in the entry in the procedure linkage table. */
6260 if (!bfd_link_pic (info
))
6264 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
6265 + sgot
->output_offset
+ got_offset
) >> 12)
6267 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6269 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
6270 + sgot
->output_offset
+ got_offset
) & 0x0fff)
6272 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6274 insn
= PLT_ENTRY_WORD2
;
6275 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6277 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
6278 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6280 insn
= PLT_ENTRY_WORD4
6281 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
6282 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6283 local_plt_offset
= 12;
6287 /* sda_base must be set at this time. */
6291 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
6292 - elf_gp (output_bfd
);
6293 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
6294 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
6296 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
6297 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
6299 insn
= PLT_PIC_ENTRY_WORD2
;
6300 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
6302 insn
= PLT_PIC_ENTRY_WORD3
;
6303 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
6305 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
6306 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
6308 insn
= PLT_PIC_ENTRY_WORD5
6309 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
6310 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
6312 local_plt_offset
= 16;
6315 /* Fill in the entry in the global offset table,
6316 so it will fall through to the next instruction for the first time. */
6317 bfd_put_32 (output_bfd
,
6318 (splt
->output_section
->vma
+ splt
->output_offset
6319 + h
->plt
.offset
+ local_plt_offset
),
6320 sgot
->contents
+ got_offset
);
6322 /* Fill in the entry in the .rela.plt section. */
6323 rela
.r_offset
= (sgot
->output_section
->vma
6324 + sgot
->output_offset
+ got_offset
);
6325 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
6327 loc
= srela
->contents
;
6328 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
6329 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6331 if (!h
->def_regular
)
6333 /* Mark the symbol as undefined, rather than as defined in
6334 the .plt section. Leave the value alone. */
6335 sym
->st_shndx
= SHN_UNDEF
;
6336 if (!h
->ref_regular_nonweak
)
6341 if (h
->got
.offset
!= (bfd_vma
) - 1
6342 && hent
->tls_type
== GOT_NORMAL
)
6346 Elf_Internal_Rela rela
;
6348 /* This symbol has an entry in the global offset table.
6352 srelagot
= ehtab
->srelgot
;
6353 BFD_ASSERT (sgot
!= NULL
&& srelagot
!= NULL
);
6355 rela
.r_offset
= (sgot
->output_section
->vma
6356 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
6358 /* If this is a -Bsymbolic link, and the symbol is defined
6359 locally, we just want to emit a RELATIVE reloc. Likewise if
6360 the symbol was forced to be local because of a version file.
6361 The entry in the global offset table will already have been
6362 initialized in the relocate_section function. */
6363 if ((bfd_link_pic (info
)
6364 && (info
->symbolic
|| h
->dynindx
== -1 || h
->forced_local
)
6366 || (bfd_link_pie (info
) && h
->def_regular
))
6368 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
6369 rela
.r_addend
= (h
->root
.u
.def
.value
6370 + h
->root
.u
.def
.section
->output_section
->vma
6371 + h
->root
.u
.def
.section
->output_offset
);
6373 if ((h
->got
.offset
& 1) == 0)
6375 bfd_put_32 (output_bfd
, rela
.r_addend
,
6376 sgot
->contents
+ h
->got
.offset
);
6381 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
6382 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
6383 sgot
->contents
+ h
->got
.offset
);
6384 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
6388 loc
= srelagot
->contents
;
6389 loc
+= srelagot
->reloc_count
* sizeof (Elf32_External_Rela
);
6390 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6391 ++srelagot
->reloc_count
;
6392 BFD_ASSERT (loc
< (srelagot
->contents
+ srelagot
->size
));
6398 Elf_Internal_Rela rela
;
6400 /* This symbols needs a copy reloc. Set it up. */
6402 BFD_ASSERT (h
->dynindx
!= -1
6403 && (h
->root
.type
== bfd_link_hash_defined
6404 || h
->root
.type
== bfd_link_hash_defweak
));
6406 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
6407 BFD_ASSERT (s
!= NULL
);
6409 rela
.r_offset
= (h
->root
.u
.def
.value
6410 + h
->root
.u
.def
.section
->output_section
->vma
6411 + h
->root
.u
.def
.section
->output_offset
);
6412 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
6415 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
6416 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
6420 /* Mark some specially defined symbols as absolute. */
6421 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
6422 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
6423 sym
->st_shndx
= SHN_ABS
;
6429 /* Finish up the dynamic sections. */
6432 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
6437 struct elf_link_hash_table
*ehtab
;
6438 struct elf_nds32_link_hash_table
*htab
;
6440 ehtab
= elf_hash_table (info
);
6441 htab
= nds32_elf_hash_table (info
);
6445 dynobj
= elf_hash_table (info
)->dynobj
;
6447 sgotplt
= ehtab
->sgotplt
;
6448 /* A broken linker script might have discarded the dynamic sections.
6449 Catch this here so that we do not seg-fault later on. */
6450 if (sgotplt
!= NULL
&& bfd_is_abs_section (sgotplt
->output_section
))
6452 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
6454 if (elf_hash_table (info
)->dynamic_sections_created
)
6457 Elf32_External_Dyn
*dyncon
, *dynconend
;
6459 BFD_ASSERT (sgotplt
!= NULL
&& sdyn
!= NULL
);
6461 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
6462 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
6464 for (; dyncon
< dynconend
; dyncon
++)
6466 Elf_Internal_Dyn dyn
;
6469 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
6477 /* name = ".got"; */
6478 s
= ehtab
->sgot
->output_section
;
6481 s
= ehtab
->srelplt
->output_section
;
6483 BFD_ASSERT (s
!= NULL
);
6484 dyn
.d_un
.d_ptr
= s
->vma
;
6485 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6489 s
= ehtab
->srelplt
->output_section
;
6490 BFD_ASSERT (s
!= NULL
);
6491 dyn
.d_un
.d_val
= s
->size
;
6492 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6496 /* My reading of the SVR4 ABI indicates that the
6497 procedure linkage table relocs (DT_JMPREL) should be
6498 included in the overall relocs (DT_RELA). This is
6499 what Solaris does. However, UnixWare can not handle
6500 that case. Therefore, we override the DT_RELASZ entry
6501 here to make it not include the JMPREL relocs. Since
6502 the linker script arranges for .rela.plt to follow all
6503 other relocation sections, we don't have to worry
6504 about changing the DT_RELA entry. */
6505 if (ehtab
->srelplt
!= NULL
)
6507 s
= ehtab
->srelplt
->output_section
;
6508 dyn
.d_un
.d_val
-= s
->size
;
6510 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6513 case DT_TLSDESC_PLT
:
6514 s
= htab
->root
.splt
;
6515 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6516 + htab
->dt_tlsdesc_plt
);
6517 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6520 case DT_TLSDESC_GOT
:
6521 s
= htab
->root
.sgot
;
6522 dyn
.d_un
.d_ptr
= (s
->output_section
->vma
+ s
->output_offset
6523 + htab
->dt_tlsdesc_got
);
6524 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
6529 /* Fill in the first entry in the procedure linkage table. */
6531 if (splt
&& splt
->size
> 0)
6533 if (bfd_link_pic (info
))
6538 offset
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4
6539 - elf_gp (output_bfd
);
6540 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
6541 bfd_putb32 (insn
, splt
->contents
);
6543 /* here has a typo? */
6544 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
6545 bfd_putb32 (insn
, splt
->contents
+ 4);
6547 insn
= PLT0_PIC_ENTRY_WORD2
;
6548 bfd_putb32 (insn
, splt
->contents
+ 8);
6550 insn
= PLT0_PIC_ENTRY_WORD3
;
6551 bfd_putb32 (insn
, splt
->contents
+ 12);
6553 insn
= PLT0_PIC_ENTRY_WORD4
;
6554 bfd_putb32 (insn
, splt
->contents
+ 16);
6556 insn
= PLT0_PIC_ENTRY_WORD5
;
6557 bfd_putb32 (insn
, splt
->contents
+ 20);
6564 /* addr = .got + 4 */
6565 addr
= sgotplt
->output_section
->vma
+ sgotplt
->output_offset
+ 4;
6566 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
6567 bfd_putb32 (insn
, splt
->contents
);
6569 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
6570 bfd_putb32 (insn
, splt
->contents
+ 4);
6572 insn
= PLT0_ENTRY_WORD2
;
6573 bfd_putb32 (insn
, splt
->contents
+ 8);
6575 insn
= PLT0_ENTRY_WORD3
;
6576 bfd_putb32 (insn
, splt
->contents
+ 12);
6578 insn
= PLT0_ENTRY_WORD4
;
6579 bfd_putb32 (insn
, splt
->contents
+ 16);
6582 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
6586 if (htab
->dt_tlsdesc_plt
)
6588 /* Calculate addresses. */
6589 asection
*sgot
= sgot
= ehtab
->sgot
;
6590 bfd_vma pltgot
= sgotplt
->output_section
->vma
6591 + sgotplt
->output_offset
;
6592 bfd_vma tlsdesc_got
= sgot
->output_section
->vma
+ sgot
->output_offset
6593 + htab
->dt_tlsdesc_got
;
6595 /* Get GP offset. */
6596 pltgot
-= elf_gp (output_bfd
) - 4; /* PLTGOT[1] */
6597 tlsdesc_got
-= elf_gp (output_bfd
);
6599 /* Do relocation. */
6600 dl_tlsdesc_lazy_trampoline
[0] += ((1 << 20) - 1) & (tlsdesc_got
>> 12);
6601 dl_tlsdesc_lazy_trampoline
[1] += 0xfff & tlsdesc_got
;
6602 dl_tlsdesc_lazy_trampoline
[4] += ((1 << 20) - 1) & (pltgot
>> 12);
6603 dl_tlsdesc_lazy_trampoline
[5] += 0xfff & pltgot
;
6606 nds32_put_trampoline (splt
->contents
+ htab
->dt_tlsdesc_plt
,
6607 dl_tlsdesc_lazy_trampoline
,
6608 ARRAY_SIZE (dl_tlsdesc_lazy_trampoline
));
6612 /* Fill in the first three entries in the global offset table. */
6613 if (sgotplt
&& sgotplt
->size
> 0)
6616 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
);
6618 bfd_put_32 (output_bfd
,
6619 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
6621 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 4);
6622 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgotplt
->contents
+ 8);
6624 elf_section_data (sgotplt
->output_section
)->this_hdr
.sh_entsize
= 4;
6631 /* Set the right machine number. */
6634 nds32_elf_object_p (bfd
*abfd
)
6636 static unsigned int cur_arch
= 0;
6638 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
6640 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
6641 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
6648 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
6651 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
6653 case E_NDS_ARCH_STAR_V2_0
:
6654 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
6656 case E_NDS_ARCH_STAR_V3_0
:
6657 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
6659 case E_NDS_ARCH_STAR_V3_M
:
6660 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
6667 /* Store the machine number in the flags field. */
6670 nds32_elf_final_write_processing (bfd
*abfd
)
6673 static unsigned int cur_mach
= 0;
6675 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
6677 cur_mach
= bfd_get_mach (abfd
);
6683 /* Only happen when object is empty, since the case is abandon. */
6685 val
|= E_NDS_ABI_AABI
;
6686 val
|= E_NDS32_ELF_VER_1_4
;
6691 case bfd_mach_n1h_v2
:
6692 val
= E_NDS_ARCH_STAR_V2_0
;
6694 case bfd_mach_n1h_v3
:
6695 val
= E_NDS_ARCH_STAR_V3_0
;
6697 case bfd_mach_n1h_v3m
:
6698 val
= E_NDS_ARCH_STAR_V3_M
;
6705 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
6706 elf_elfheader (abfd
)->e_flags
|= val
;
6707 return _bfd_elf_final_write_processing (abfd
);
6710 /* Function to keep NDS32 specific file flags. */
6713 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
6715 BFD_ASSERT (!elf_flags_init (abfd
)
6716 || elf_elfheader (abfd
)->e_flags
== flags
);
6718 elf_elfheader (abfd
)->e_flags
= flags
;
6719 elf_flags_init (abfd
) = TRUE
;
6724 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
6726 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
6728 /* From 0.9 to 1.0. */
6729 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
6731 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6732 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6733 if (arch
== E_NDS_ARCH_STAR_V1_0
)
6740 /* From 1.0 to 2.0. */
6741 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
6743 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
6744 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
6746 /* Invert E_NDS32_HAS_NO_MAC_INST. */
6747 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
6752 nds32_check_vec_size (bfd
*ibfd
)
6754 static unsigned int nds32_vec_size
= 0;
6756 asection
*sec_t
= NULL
;
6757 bfd_byte
*contents
= NULL
;
6759 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
6761 if (sec_t
&& sec_t
->size
>= 4)
6763 /* Get vec_size in file. */
6764 unsigned int flag_t
;
6766 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
6767 flag_t
= bfd_get_32 (ibfd
, contents
);
6769 /* The value could only be 4 or 16. */
6771 if (!nds32_vec_size
)
6772 /* Set if not set yet. */
6773 nds32_vec_size
= (flag_t
& 0x3);
6774 else if (nds32_vec_size
!= (flag_t
& 0x3))
6777 /* xgettext:c-format */
6778 (_("%pB: ISR vector size mismatch"
6779 " with previous modules, previous %u-byte, current %u-byte"),
6781 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
6782 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
6786 /* Only keep the first vec_size section. */
6787 sec_t
->flags
|= SEC_EXCLUDE
;
6793 /* Merge backend specific data from an object file to the output
6794 object file when linking. */
6797 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
6799 bfd
*obfd
= info
->output_bfd
;
6802 flagword out_16regs
;
6804 flagword out_no_mac
;
6806 flagword out_version
;
6807 flagword in_version
;
6808 flagword out_fpu_config
;
6809 flagword in_fpu_config
;
6811 /* FIXME: What should be checked when linking shared libraries? */
6812 if ((ibfd
->flags
& DYNAMIC
) != 0)
6815 /* TODO: Revise to use object-attributes instead. */
6816 if (!nds32_check_vec_size (ibfd
))
6819 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6820 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6823 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6826 (_("%pB: warning: endian mismatch with previous modules"), ibfd
);
6828 bfd_set_error (bfd_error_bad_value
);
6832 /* -B option in objcopy cannot work as expected. e_flags = 0 shall be
6833 treat as generic one without checking and merging. */
6834 if (elf_elfheader (ibfd
)->e_flags
)
6836 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6837 if (in_version
== E_NDS32_ELF_VER_1_2
)
6840 (_("%pB: warning: older version of object file encountered, "
6841 "please recompile with current tool chain"), ibfd
);
6844 /* We may need to merge V1 and V2 arch object files to V2. */
6845 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6846 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6848 /* Need to convert version. */
6849 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6850 == E_NDS_ARCH_STAR_RESERVED
)
6852 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6854 else if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6855 == E_NDS_ARCH_STAR_V3_M
6856 && (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6857 == E_NDS_ARCH_STAR_V3_0
)
6859 elf_elfheader (ibfd
)->e_flags
=
6860 (elf_elfheader (ibfd
)->e_flags
& (~EF_NDS_ARCH
))
6861 | E_NDS_ARCH_STAR_V3_0
;
6863 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
)
6864 == E_NDS_ARCH_STAR_V0_9
6865 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6866 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6868 elf_elfheader (obfd
)->e_flags
=
6869 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6870 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6874 elf_elfheader (ibfd
)->e_flags
=
6875 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6876 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6880 /* Extract some flags. */
6881 in_flags
= elf_elfheader (ibfd
)->e_flags
6882 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6883 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6885 /* The following flags need special treatment. */
6886 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6887 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6888 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6890 /* Extract some flags. */
6891 out_flags
= elf_elfheader (obfd
)->e_flags
6892 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6893 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6895 /* The following flags need special treatment. */
6896 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6897 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6898 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6899 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6900 if (!elf_flags_init (obfd
))
6902 /* If the input is the default architecture then do not
6903 bother setting the flags for the output architecture,
6904 instead allow future merges to do this. If no future
6905 merges ever set these flags then they will retain their
6906 unitialised values, which surprise surprise, correspond
6907 to the default values. */
6908 if (bfd_get_arch_info (ibfd
)->the_default
)
6911 elf_flags_init (obfd
) = TRUE
;
6912 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6914 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6915 && bfd_get_arch_info (obfd
)->the_default
)
6917 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6918 bfd_get_mach (ibfd
));
6924 /* Check flag compatibility. */
6925 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6928 (_("%pB: error: ABI mismatch with previous modules"), ibfd
);
6929 bfd_set_error (bfd_error_bad_value
);
6933 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6935 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6938 (_("%pB: error: instruction set mismatch with previous modules"),
6941 bfd_set_error (bfd_error_bad_value
);
6946 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6947 and perf ext1 and DIV are mergerd to perf ext1. */
6948 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6950 elf_elfheader (obfd
)->e_flags
=
6951 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6952 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6953 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6954 ? E_NDS32_HAS_EXT_INST
: 0)
6955 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6956 ? E_NDS32_HAS_EXT_INST
: 0)
6957 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6958 | ((in_version
> out_version
) ? out_version
: in_version
);
6962 if (in_version
!= out_version
)
6964 /* xgettext:c-format */
6965 (_("%pB: warning: incompatible elf-versions %s and %s"),
6966 ibfd
, nds32_elfver_strtab
[out_version
],
6967 nds32_elfver_strtab
[in_version
]);
6969 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6970 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6971 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6972 | (in_version
> out_version
? out_version
: in_version
);
6979 /* Display the flags field. */
6982 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6984 FILE *file
= (FILE *) ptr
;
6986 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6988 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6990 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6992 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6996 fprintf (file
, _(": n1 instructions"));
6999 fprintf (file
, _(": n1h instructions"));
7009 nds32_elf_action_discarded (asection
*sec
)
7013 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
7016 return _bfd_elf_default_action_discarded (sec
);
7020 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
7021 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
7022 Elf_Internal_Sym
*sym
)
7025 switch (ELF32_R_TYPE (rel
->r_info
))
7027 case R_NDS32_GNU_VTINHERIT
:
7028 case R_NDS32_GNU_VTENTRY
:
7029 case R_NDS32_RELA_GNU_VTINHERIT
:
7030 case R_NDS32_RELA_GNU_VTENTRY
:
7034 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
7037 static enum elf_nds32_tls_type
7038 get_tls_type (enum elf_nds32_reloc_type r_type
,
7039 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
7041 enum elf_nds32_tls_type tls_type
;
7045 case R_NDS32_TLS_LE_HI20
:
7046 case R_NDS32_TLS_LE_LO12
:
7047 tls_type
= GOT_TLS_LE
;
7049 case R_NDS32_TLS_IE_HI20
:
7050 case R_NDS32_TLS_IE_LO12S2
:
7051 case R_NDS32_TLS_IE_LO12
:
7052 tls_type
= GOT_TLS_IE
;
7054 case R_NDS32_TLS_IEGP_HI20
:
7055 case R_NDS32_TLS_IEGP_LO12
:
7056 case R_NDS32_TLS_IEGP_LO12S2
:
7057 tls_type
= GOT_TLS_IEGP
;
7059 case R_NDS32_TLS_DESC_HI20
:
7060 case R_NDS32_TLS_DESC_LO12
:
7061 case R_NDS32_TLS_DESC_ADD
:
7062 case R_NDS32_TLS_DESC_FUNC
:
7063 case R_NDS32_TLS_DESC_CALL
:
7064 tls_type
= GOT_TLS_DESC
;
7067 tls_type
= GOT_NORMAL
;
7074 /* Ensure that we have allocated bookkeeping structures for ABFD's local
7078 elf32_nds32_allocate_local_sym_info (bfd
*abfd
)
7080 if (elf_local_got_refcounts (abfd
) == NULL
)
7082 bfd_size_type num_syms
;
7086 num_syms
= elf_tdata (abfd
)->symtab_hdr
.sh_info
;
7087 /* This space is for got_refcounts, got_tls_type, tlsdesc_gotent, and
7088 gp_offset. The details can refer to struct elf_nds32_obj_tdata. */
7089 size
= num_syms
* (sizeof (bfd_signed_vma
) + sizeof (char)
7090 + sizeof (bfd_vma
) + sizeof (int)
7091 + sizeof (bfd_boolean
) + sizeof (bfd_vma
));
7092 data
= bfd_zalloc (abfd
, size
);
7096 elf_local_got_refcounts (abfd
) = (bfd_signed_vma
*) data
;
7097 data
+= num_syms
* sizeof (bfd_signed_vma
);
7099 elf32_nds32_local_got_tls_type (abfd
) = (char *) data
;
7100 data
+= num_syms
* sizeof (char);
7102 elf32_nds32_local_tlsdesc_gotent (abfd
) = (bfd_vma
*) data
;
7103 data
+= num_syms
* sizeof (bfd_vma
);
7105 elf32_nds32_local_gp_offset (abfd
) = (int *) data
;
7106 data
+= num_syms
* sizeof (int);
7112 /* Look through the relocs for a section during the first phase.
7113 Since we don't do .gots or .plts, we just need to consider the
7114 virtual table relocs for gc. */
7117 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
7118 asection
*sec
, const Elf_Internal_Rela
*relocs
)
7120 Elf_Internal_Shdr
*symtab_hdr
;
7121 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
7122 const Elf_Internal_Rela
*rel
;
7123 const Elf_Internal_Rela
*rel_end
;
7124 struct elf_link_hash_table
*ehtab
;
7125 struct elf_nds32_link_hash_table
*htab
;
7127 asection
*sreloc
= NULL
;
7129 /* No need for relocation if relocatable already. */
7130 if (bfd_link_relocatable (info
))
7132 elf32_nds32_check_relax_group (abfd
, sec
);
7136 /* Don't do anything special with non-loaded, non-alloced sections.
7137 In particular, any relocs in such sections should not affect GOT
7138 and PLT reference counting (ie. we don't allow them to create GOT
7139 or PLT entries), there's no possibility or desire to optimize TLS
7140 relocs, and there's not much point in propagating relocs to shared
7141 libs that the dynamic linker won't relocate. */
7142 if ((sec
->flags
& SEC_ALLOC
) == 0)
7145 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
7146 sym_hashes
= elf_sym_hashes (abfd
);
7148 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
7149 if (!elf_bad_symtab (abfd
))
7150 sym_hashes_end
-= symtab_hdr
->sh_info
;
7152 ehtab
= elf_hash_table (info
);
7153 htab
= nds32_elf_hash_table (info
);
7154 dynobj
= htab
->root
.dynobj
;
7156 rel_end
= relocs
+ sec
->reloc_count
;
7157 for (rel
= relocs
; rel
< rel_end
; rel
++)
7159 enum elf_nds32_reloc_type r_type
;
7160 struct elf_link_hash_entry
*h
;
7161 unsigned long r_symndx
;
7162 enum elf_nds32_tls_type tls_type
, old_tls_type
;
7164 r_symndx
= ELF32_R_SYM (rel
->r_info
);
7165 r_type
= ELF32_R_TYPE (rel
->r_info
);
7166 if (r_symndx
< symtab_hdr
->sh_info
)
7170 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
7171 while (h
->root
.type
== bfd_link_hash_indirect
7172 || h
->root
.type
== bfd_link_hash_warning
)
7173 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
7176 /* Create .got section if necessary.
7177 Some relocs require a global offset table. We create
7178 got section here, since these relocation need a got section
7179 and if it is not created yet. */
7180 if (ehtab
->sgot
== NULL
)
7184 case R_NDS32_GOT_HI20
:
7185 case R_NDS32_GOT_LO12
:
7186 case R_NDS32_GOT_LO15
:
7187 case R_NDS32_GOT_LO19
:
7188 case R_NDS32_GOT17S2_RELA
:
7189 case R_NDS32_GOT15S2_RELA
:
7190 case R_NDS32_GOTOFF
:
7191 case R_NDS32_GOTOFF_HI20
:
7192 case R_NDS32_GOTOFF_LO12
:
7193 case R_NDS32_GOTOFF_LO15
:
7194 case R_NDS32_GOTOFF_LO19
:
7195 case R_NDS32_GOTPC20
:
7196 case R_NDS32_GOTPC_HI20
:
7197 case R_NDS32_GOTPC_LO12
:
7199 case R_NDS32_TLS_IE_HI20
:
7200 case R_NDS32_TLS_IE_LO12
:
7201 case R_NDS32_TLS_IE_LO12S2
:
7202 case R_NDS32_TLS_IEGP_HI20
:
7203 case R_NDS32_TLS_IEGP_LO12
:
7204 case R_NDS32_TLS_IEGP_LO12S2
:
7205 case R_NDS32_TLS_DESC_HI20
:
7206 case R_NDS32_TLS_DESC_LO12
:
7208 htab
->root
.dynobj
= dynobj
= abfd
;
7209 if (!create_got_section (dynobj
, info
))
7218 /* Check relocation type. */
7219 switch ((int) r_type
)
7221 case R_NDS32_GOT_HI20
:
7222 case R_NDS32_GOT_LO12
:
7223 case R_NDS32_GOT_LO15
:
7224 case R_NDS32_GOT_LO19
:
7226 case R_NDS32_TLS_LE_HI20
:
7227 case R_NDS32_TLS_LE_LO12
:
7228 case R_NDS32_TLS_IE_HI20
:
7229 case R_NDS32_TLS_IE_LO12
:
7230 case R_NDS32_TLS_IE_LO12S2
:
7231 case R_NDS32_TLS_IEGP_HI20
:
7232 case R_NDS32_TLS_IEGP_LO12
:
7233 case R_NDS32_TLS_IEGP_LO12S2
:
7234 case R_NDS32_TLS_DESC_HI20
:
7235 case R_NDS32_TLS_DESC_LO12
:
7236 tls_type
= get_tls_type (r_type
, h
);
7239 if (tls_type
!= GOT_TLS_LE
)
7240 h
->got
.refcount
+= 1;
7241 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
7245 /* This is a global offset table entry for a local symbol. */
7246 if (!elf32_nds32_allocate_local_sym_info (abfd
))
7249 BFD_ASSERT (r_symndx
< symtab_hdr
->sh_info
);
7250 if (tls_type
!= GOT_TLS_LE
)
7251 elf_local_got_refcounts (abfd
)[r_symndx
] += 1;
7252 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
7255 /* We would already have issued an error message if there
7256 is a TLS/non-TLS mismatch, based on the symbol
7257 type. So just combine any TLS types needed. */
7258 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
7259 && tls_type
!= GOT_NORMAL
)
7260 tls_type
|= old_tls_type
;
7262 /* DESC to IE/IEGP if link to executable. */
7263 if ((tls_type
& (GOT_TLS_DESC
| GOT_TLS_IEGP
))
7264 && (bfd_link_executable (info
)))
7265 tls_type
|= (bfd_link_pie (info
) ? GOT_TLS_IEGP
: GOT_TLS_IE
);
7267 if (old_tls_type
!= tls_type
)
7270 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
7272 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
7275 case R_NDS32_9_PLTREL
:
7276 case R_NDS32_25_PLTREL
:
7277 case R_NDS32_PLTREL_HI20
:
7278 case R_NDS32_PLTREL_LO12
:
7279 case R_NDS32_PLT_GOTREL_HI20
:
7280 case R_NDS32_PLT_GOTREL_LO12
:
7281 case R_NDS32_PLT_GOTREL_LO15
:
7282 case R_NDS32_PLT_GOTREL_LO19
:
7283 case R_NDS32_PLT_GOTREL_LO20
:
7285 /* This symbol requires a procedure linkage table entry. We
7286 actually build the entry in adjust_dynamic_symbol,
7287 because this might be a case of linking PIC code without
7288 linking in any dynamic objects, in which case we don't
7289 need to generate a procedure linkage table after all. */
7291 /* If this is a local symbol, we resolve it directly without
7292 creating a procedure linkage table entry. */
7297 || (bfd_link_pie (info
) && h
->def_regular
))
7300 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
7302 h
->plt
.refcount
+= 1;
7305 case R_NDS32_16_RELA
:
7306 case R_NDS32_20_RELA
:
7307 case R_NDS32_5_RELA
:
7308 case R_NDS32_32_RELA
:
7309 case R_NDS32_HI20_RELA
:
7310 case R_NDS32_LO12S3_RELA
:
7311 case R_NDS32_LO12S2_RELA
:
7312 case R_NDS32_LO12S2_DP_RELA
:
7313 case R_NDS32_LO12S2_SP_RELA
:
7314 case R_NDS32_LO12S1_RELA
:
7315 case R_NDS32_LO12S0_RELA
:
7316 case R_NDS32_LO12S0_ORI_RELA
:
7317 case R_NDS32_SDA16S3_RELA
:
7318 case R_NDS32_SDA17S2_RELA
:
7319 case R_NDS32_SDA18S1_RELA
:
7320 case R_NDS32_SDA19S0_RELA
:
7321 case R_NDS32_SDA15S3_RELA
:
7322 case R_NDS32_SDA15S2_RELA
:
7323 case R_NDS32_SDA12S2_DP_RELA
:
7324 case R_NDS32_SDA12S2_SP_RELA
:
7325 case R_NDS32_SDA15S1_RELA
:
7326 case R_NDS32_SDA15S0_RELA
:
7327 case R_NDS32_SDA_FP7U2_RELA
:
7328 case R_NDS32_15_PCREL_RELA
:
7329 case R_NDS32_17_PCREL_RELA
:
7330 case R_NDS32_25_PCREL_RELA
:
7332 if (h
!= NULL
&& !bfd_link_pic (info
))
7335 h
->plt
.refcount
+= 1;
7338 /* If we are creating a shared library, and this is a reloc against
7339 a global symbol, or a non PC relative reloc against a local
7340 symbol, then we need to copy the reloc into the shared library.
7341 However, if we are linking with -Bsymbolic, we do not need to
7342 copy a reloc against a global symbol which is defined in an
7343 object we are including in the link (i.e., DEF_REGULAR is set).
7344 At this point we have not seen all the input files, so it is
7345 possible that DEF_REGULAR is not set now but will be set later
7346 (it is never cleared). We account for that possibility below by
7347 storing information in the dyn_relocs field of the hash table
7348 entry. A similar situation occurs when creating shared libraries
7349 and symbol visibility changes render the symbol local.
7351 If on the other hand, we are creating an executable, we may need
7352 to keep relocations for symbols satisfied by a dynamic library
7353 if we manage to avoid copy relocs for the symbol. */
7354 if ((bfd_link_pic (info
)
7355 && (sec
->flags
& SEC_ALLOC
) != 0
7356 && ((r_type
!= R_NDS32_25_PCREL_RELA
7357 && r_type
!= R_NDS32_15_PCREL_RELA
7358 && r_type
!= R_NDS32_17_PCREL_RELA
7359 && !(r_type
== R_NDS32_32_RELA
7360 && strcmp (sec
->name
, ".eh_frame") == 0))
7363 || h
->root
.type
== bfd_link_hash_defweak
7364 || !h
->def_regular
))))
7365 || (!bfd_link_pic (info
)
7366 && (sec
->flags
& SEC_ALLOC
) != 0
7368 && (h
->root
.type
== bfd_link_hash_defweak
7369 || !h
->def_regular
)))
7371 struct elf_dyn_relocs
*p
;
7372 struct elf_dyn_relocs
**head
;
7375 htab
->root
.dynobj
= dynobj
= abfd
;
7377 /* When creating a shared object, we must copy these
7378 relocs into the output file. We create a reloc
7379 section in dynobj and make room for the reloc. */
7384 name
= bfd_elf_string_from_elf_section
7385 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
7386 elf_section_data (sec
)->rela
.hdr
->sh_name
);
7390 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
7391 && strcmp (bfd_section_name (sec
),
7394 sreloc
= bfd_get_section_by_name (dynobj
, name
);
7399 sreloc
= bfd_make_section (dynobj
, name
);
7400 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
7401 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
7402 if ((sec
->flags
& SEC_ALLOC
) != 0)
7403 flags
|= SEC_ALLOC
| SEC_LOAD
;
7405 || !bfd_set_section_flags (sreloc
, flags
)
7406 || !bfd_set_section_alignment (sreloc
, 2))
7409 elf_section_type (sreloc
) = SHT_RELA
;
7411 elf_section_data (sec
)->sreloc
= sreloc
;
7414 /* If this is a global symbol, we count the number of
7415 relocations we need for this symbol. */
7417 head
= &h
->dyn_relocs
;
7423 Elf_Internal_Sym
*isym
;
7424 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
7428 /* Track dynamic relocs needed for local syms too. */
7429 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7433 vpp
= &elf_section_data (s
)->local_dynrel
;
7434 head
= (struct elf_dyn_relocs
**) vpp
;
7438 if (p
== NULL
|| p
->sec
!= sec
)
7440 size_t amt
= sizeof (*p
);
7441 p
= (struct elf_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
7453 /* Since eh_frame is readonly, R_NDS32_32_RELA
7454 reloc for eh_frame will cause shared library has
7455 TEXTREL entry in the dynamic section. This lead glibc
7456 testsuites to failure (bug-13092) and cause kernel fail
7457 (bug-11819). I think the best solution is to replace
7458 absolute reloc with pc relative reloc in the eh_frame.
7459 To do that, we need to support the following issues:
7462 * gcc/config/nds32/nds32.h: Define
7463 ASM_PREFERRED_EH_DATA_FORMAT to encode DW_EH_PE_pcrel
7464 and DW_EH_PE_sdata4 into DWARF exception header when
7465 option have '-fpic'.
7467 === For binutils ===
7468 * bfd/: Define new reloc R_NDS32_32_PCREL_RELA.
7469 * gas/config/tc-nds32.h: Define DIFF_EXPR_OK. This
7470 may break our nds DIFF mechanism, therefore, we
7471 must disable all linker relaxations to ensure
7473 * gas/config/tc-nds32.c (nds32_apply_fix): Replace
7474 R_NDS32_32_RELA with R_NDS32_32_PCREL_RELA, and
7475 do the necessary modification.
7477 Unfortunately, it still have some problems for nds32
7478 to support pc relative reloc in the eh_frame. So I use
7479 another solution to fix this issue.
7481 However, I find that ld always emit TEXTREL marker for
7482 R_NDS32_NONE relocs in rel.dyn. These none relocs are
7483 correspond to R_NDS32_32_RELA for .eh_frame section.
7484 It means that we always reserve redundant entries of rel.dyn
7485 for these relocs which actually do nothing in dynamic linker.
7487 Therefore, we regard these relocs as pc relative relocs
7488 here and increase the pc_count. */
7489 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
7490 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
7491 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
7492 || (r_type
== R_NDS32_32_RELA
7493 && strcmp (sec
->name
, ".eh_frame") == 0))
7498 /* This relocation describes the C++ object vtable hierarchy.
7499 Reconstruct it for later use during GC. */
7500 case R_NDS32_RELA_GNU_VTINHERIT
:
7501 case R_NDS32_GNU_VTINHERIT
:
7502 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
7506 /* This relocation describes which C++ vtable entries are actually
7507 used. Record for later use during GC. */
7508 case R_NDS32_GNU_VTENTRY
:
7509 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
7512 case R_NDS32_RELA_GNU_VTENTRY
:
7513 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
7522 /* Write VAL in uleb128 format to P, returning a pointer to the
7524 This code is copied from elf-attr.c. */
7527 write_uleb128 (bfd_byte
*p
, unsigned int val
)
7542 static bfd_signed_vma
7543 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
7544 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
7546 bfd_signed_vma foff
;
7547 bfd_vma symval
, addend
;
7550 /* Get the value of the symbol referred to by the reloc. */
7551 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
7553 Elf_Internal_Sym
*isym
;
7555 /* A local symbol. */
7556 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
7558 if (isym
->st_shndx
== SHN_UNDEF
)
7559 sym_sec
= bfd_und_section_ptr
;
7560 else if (isym
->st_shndx
== SHN_ABS
)
7561 sym_sec
= bfd_abs_section_ptr
;
7562 else if (isym
->st_shndx
== SHN_COMMON
)
7563 sym_sec
= bfd_com_section_ptr
;
7565 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
7566 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
7567 + sym_sec
->output_offset
;
7572 struct elf_link_hash_entry
*h
;
7574 /* An external symbol. */
7575 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
7576 h
= elf_sym_hashes (abfd
)[indx
];
7577 BFD_ASSERT (h
!= NULL
);
7579 if (h
->root
.type
!= bfd_link_hash_defined
7580 && h
->root
.type
!= bfd_link_hash_defweak
)
7581 /* This appears to be a reference to an undefined
7582 symbol. Just ignore it--it will be caught by the
7583 regular reloc processing. */
7586 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
7588 sym_sec
= h
->root
.u
.def
.section
;
7589 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
7590 elf_section_data (sym_sec
)->sec_info
,
7591 h
->root
.u
.def
.value
);
7592 symval
= symval
+ sym_sec
->output_section
->vma
7593 + sym_sec
->output_offset
;
7596 symval
= (h
->root
.u
.def
.value
7597 + h
->root
.u
.def
.section
->output_section
->vma
7598 + h
->root
.u
.def
.section
->output_offset
);
7601 addend
= irel
->r_addend
;
7603 foff
= (symval
+ addend
7604 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
7609 /* Convert a 32-bit instruction to 16-bit one.
7610 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
7611 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
7612 type of INSN16. Return 1 if successful. */
7615 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7618 uint16_t insn16
= 0;
7620 unsigned long mach
= bfd_get_mach (abfd
);
7622 if (N32_SH5 (insn
) != 0)
7625 switch (N32_SUB5 (insn
))
7627 case N32_ALU1_ADD_SLLI
:
7628 case N32_ALU1_ADD_SRLI
:
7629 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7631 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
7633 insn_type
= NDS32_INSN_ADD333
;
7635 else if (N32_IS_RT4 (insn
))
7637 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7638 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
7639 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7640 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
7641 insn_type
= NDS32_INSN_ADD45
;
7645 case N32_ALU1_SUB_SLLI
:
7646 case N32_ALU1_SUB_SRLI
:
7647 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
7649 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
7651 insn_type
= NDS32_INSN_SUB333
;
7653 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7655 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
7656 insn_type
= NDS32_INSN_SUB45
;
7660 case N32_ALU1_AND_SLLI
:
7661 case N32_ALU1_AND_SRLI
:
7662 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
7663 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7664 && N32_IS_RB3 (insn
))
7666 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7667 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
7668 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7669 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
7671 insn_type
= NDS32_INSN_AND33
;
7675 case N32_ALU1_XOR_SLLI
:
7676 case N32_ALU1_XOR_SRLI
:
7677 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
7678 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7679 && N32_IS_RB3 (insn
))
7681 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7682 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7683 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7684 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7686 insn_type
= NDS32_INSN_XOR33
;
7690 case N32_ALU1_OR_SLLI
:
7691 case N32_ALU1_OR_SRLI
:
7692 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
7693 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7694 && N32_IS_RB3 (insn
))
7696 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7697 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
7698 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7699 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
7701 insn_type
= NDS32_INSN_OR33
;
7705 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
7706 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
7707 && N32_RA5 (insn
) == N32_RB5 (insn
))
7709 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
7710 insn_type
= NDS32_INSN_NOT33
;
7714 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7716 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7717 insn_type
= NDS32_INSN_SRAI45
;
7722 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
7724 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
7725 insn_type
= NDS32_INSN_SRLI45
;
7730 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
7732 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7734 insn_type
= NDS32_INSN_SLLI333
;
7739 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7741 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7742 insn_type
= NDS32_INSN_ZEH33
;
7747 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7749 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7750 insn_type
= NDS32_INSN_SEB33
;
7755 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7757 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7758 insn_type
= NDS32_INSN_SEH33
;
7763 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7766 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7767 insn_type
= NDS32_INSN_SLT45
;
7772 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7775 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7776 insn_type
= NDS32_INSN_SLTS45
;
7781 if ((insn16
& 0x8000) == 0)
7787 *pinsn_type
= insn_type
;
7792 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7795 uint16_t insn16
= 0;
7797 unsigned long mach
= bfd_get_mach (abfd
);
7799 /* TODO: bset, bclr, btgl, btst. */
7800 if (__GF (insn
, 6, 4) != 0)
7803 switch (N32_IMMU (insn
, 6))
7806 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7807 && N32_IS_RB3 (insn
))
7809 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7810 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7811 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7812 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7814 insn_type
= NDS32_INSN_MUL33
;
7818 if ((insn16
& 0x8000) == 0)
7824 *pinsn_type
= insn_type
;
7829 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7833 uint16_t insn16
= 0;
7835 unsigned long mach
= bfd_get_mach (abfd
);
7837 /* Decode 32-bit instruction. */
7838 if (insn
& 0x80000000)
7840 /* Not 32-bit insn. */
7844 op6
= N32_OP6 (insn
);
7846 /* Convert it to 16-bit instruction. */
7850 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7852 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7853 insn_type
= NDS32_INSN_MOVI55
;
7855 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7856 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7858 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7859 N32_IMM20S (insn
) - 16);
7860 insn_type
= NDS32_INSN_MOVPI45
;
7865 if (N32_IMM15S (insn
) == 0)
7867 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7868 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7870 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7872 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7873 insn_type
= NDS32_INSN_MOV55
;
7876 else if (N32_IMM15S (insn
) > 0)
7878 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7880 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7882 insn_type
= NDS32_INSN_ADDI333
;
7884 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7885 && N32_IMM15S (insn
) < 32)
7887 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7888 insn_type
= NDS32_INSN_ADDI45
;
7890 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7891 && N32_RT5 (insn
) == N32_RA5 (insn
)
7892 && N32_IMM15S (insn
) < 512)
7894 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7895 insn_type
= NDS32_INSN_ADDI10_SP
;
7897 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7898 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7899 && (N32_IMM15S (insn
) % 4 == 0))
7901 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7902 N32_IMM15S (insn
) >> 2);
7903 insn_type
= NDS32_INSN_ADDRI36_SP
;
7909 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7911 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7912 0 - N32_IMM15S (insn
));
7913 insn_type
= NDS32_INSN_SUBI333
;
7915 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7916 && N32_IMM15S (insn
) > -32)
7918 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7919 0 - N32_IMM15S (insn
));
7920 insn_type
= NDS32_INSN_SUBI45
;
7922 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7923 && N32_RT5 (insn
) == N32_RA5 (insn
)
7924 && N32_IMM15S (insn
) >= -512)
7926 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7927 insn_type
= NDS32_INSN_ADDI10_SP
;
7933 if (N32_IMM15S (insn
) == 0)
7935 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7936 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7938 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7940 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7941 insn_type
= NDS32_INSN_MOV55
;
7947 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7948 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7950 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7951 insn_type
= NDS32_INSN_NEG33
;
7956 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7958 if (N32_IMM15U (insn
) == 1)
7960 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7961 insn_type
= NDS32_INSN_XLSB33
;
7963 else if (N32_IMM15U (insn
) == 0x7ff)
7965 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7966 insn_type
= NDS32_INSN_X11B33
;
7968 else if (N32_IMM15U (insn
) == 0xff)
7970 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7971 insn_type
= NDS32_INSN_ZEB33
;
7973 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7974 && N32_IMM15U (insn
) < 256)
7976 int imm15u
= N32_IMM15U (insn
);
7978 if (__builtin_popcount (imm15u
) == 1)
7981 int imm3u
= __builtin_ctz (imm15u
);
7983 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7984 insn_type
= NDS32_INSN_BMSKI33
;
7986 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7989 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7991 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7992 insn_type
= NDS32_INSN_FEXTI33
;
7999 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
8000 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
8002 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
8003 insn_type
= NDS32_INSN_SLTI45
;
8008 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
8009 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
8011 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
8012 insn_type
= NDS32_INSN_SLTSI45
;
8017 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
8019 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
8020 insn_type
= NDS32_INSN_LWI450
;
8022 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8023 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8025 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8027 insn_type
= NDS32_INSN_LWI333
;
8029 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
8030 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
8032 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8033 insn_type
= NDS32_INSN_LWI37
;
8035 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
8036 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
8038 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8039 insn_type
= NDS32_INSN_LWI37_SP
;
8041 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
8042 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
8044 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
8045 N32_IMM15S (insn
) + 32);
8046 insn_type
= NDS32_INSN_LWI45_FE
;
8051 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
8053 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
8054 insn_type
= NDS32_INSN_SWI450
;
8056 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8057 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8059 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8061 insn_type
= NDS32_INSN_SWI333
;
8063 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
8064 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
8066 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8067 insn_type
= NDS32_INSN_SWI37
;
8069 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
8070 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
8072 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8073 insn_type
= NDS32_INSN_SWI37_SP
;
8077 case N32_OP6_LWI_BI
:
8078 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8079 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8081 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
8083 insn_type
= NDS32_INSN_LWI333_BI
;
8087 case N32_OP6_SWI_BI
:
8088 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8089 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8091 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
8093 insn_type
= NDS32_INSN_SWI333_BI
;
8098 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8099 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8101 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8103 insn_type
= NDS32_INSN_LHI333
;
8108 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8109 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8111 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8113 insn_type
= NDS32_INSN_SHI333
;
8118 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8119 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8121 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8123 insn_type
= NDS32_INSN_LBI333
;
8128 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
8129 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
8131 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
8133 insn_type
= NDS32_INSN_SBI333
;
8138 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
8141 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
8144 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
8147 if ((insn
& N32_BIT (14)) == 0)
8150 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8151 && N32_RT5 (insn
) != REG_R5
)
8152 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8153 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8154 && N32_RA5 (insn
) != REG_R5
)
8155 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8156 insn_type
= NDS32_INSN_BEQS38
;
8162 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
8163 && N32_RT5 (insn
) != REG_R5
)
8164 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
8165 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
8166 && N32_RA5 (insn
) != REG_R5
)
8167 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
8168 insn_type
= NDS32_INSN_BNES38
;
8174 switch (N32_BR2_SUB (insn
))
8177 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8179 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8180 insn_type
= NDS32_INSN_BEQZ38
;
8182 else if (N32_RT5 (insn
) == REG_R15
8183 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8185 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
8186 insn_type
= NDS32_INSN_BEQZS8
;
8191 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8193 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
8194 insn_type
= NDS32_INSN_BNEZ38
;
8196 else if (N32_RT5 (insn
) == REG_R15
8197 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
8199 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
8200 insn_type
= NDS32_INSN_BNEZS8
;
8205 if (__GF (insn
, 20, 5) == 0 && IS_WITHIN_U (N32_IMM16S (insn
), 9))
8207 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
8208 insn_type
= NDS32_INSN_IFCALL9
;
8215 if ((insn
& N32_BIT (24)) == 0)
8218 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
8220 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
8221 insn_type
= NDS32_INSN_J8
;
8227 if (__GF (insn
, 8, 2) != 0)
8230 switch (N32_IMMU (insn
, 5))
8233 if (N32_JREG_HINT (insn
) == 0)
8236 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
8237 insn_type
= NDS32_INSN_JR5
;
8239 else if (N32_JREG_HINT (insn
) == 1)
8242 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
8243 insn_type
= NDS32_INSN_RET5
;
8245 else if (N32_JREG_HINT (insn
) == 3)
8247 /* ifret = mov55 $sp, $sp */
8248 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
8249 insn_type
= NDS32_INSN_IFRET
;
8254 /* It's convertible when return rt5 is $lp and address
8255 translation is kept. */
8256 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
8258 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
8259 insn_type
= NDS32_INSN_JRAL5
;
8266 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
8268 /* For v3, swid above 31 are used for ex9.it. */
8269 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
8270 insn_type
= NDS32_INSN_BREAK16
;
8275 /* This instruction has no 16-bit variant. */
8280 /* Bit-15 of insn16 should be set for a valid instruction. */
8281 if ((insn16
& 0x8000) == 0)
8287 *pinsn_type
= insn_type
;
8292 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
8293 Elf_Internal_Rela
*reloc
)
8295 uint16_t insn16
= 0;
8297 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
8298 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
8301 if (!N32_IS_RT3 (insn
))
8304 switch (N32_OP6 (insn
))
8307 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8308 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
8311 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
8312 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
8315 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
8318 if (__GF (insn
, 17, 3) == 6)
8319 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
8320 else if (__GF (insn
, 17, 3) == 7)
8321 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
8325 if ((insn16
& 0x8000) == 0)
8332 /* Convert a 16-bit instruction to 32-bit one.
8333 INSN16 it the input and PINSN it the point to output.
8334 Return non-zero on successful. Otherwise 0 is returned. */
8337 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
8339 uint32_t insn
= 0xffffffff;
8340 unsigned long mach
= bfd_get_mach (abfd
);
8342 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
8344 switch (__GF (insn16
, 9, 6))
8346 case 0x4: /* add45 */
8347 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8350 case 0x5: /* sub45 */
8351 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8354 case 0x6: /* addi45 */
8355 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8356 N16_IMM5U (insn16
));
8358 case 0x7: /* subi45 */
8359 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8360 -N16_IMM5U (insn16
));
8362 case 0x8: /* srai45 */
8363 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8364 N16_IMM5U (insn16
));
8366 case 0x9: /* srli45 */
8367 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
8368 N16_IMM5U (insn16
));
8370 case 0xa: /* slli333 */
8371 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8372 N16_IMM3U (insn16
));
8374 case 0xc: /* add333 */
8375 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8378 case 0xd: /* sub333 */
8379 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8382 case 0xe: /* addi333 */
8383 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8384 N16_IMM3U (insn16
));
8386 case 0xf: /* subi333 */
8387 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8388 -N16_IMM3U (insn16
));
8390 case 0x10: /* lwi333 */
8391 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8392 N16_IMM3U (insn16
));
8394 case 0x12: /* lhi333 */
8395 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8396 N16_IMM3U (insn16
));
8398 case 0x13: /* lbi333 */
8399 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8400 N16_IMM3U (insn16
));
8402 case 0x11: /* lwi333.bi */
8403 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8404 N16_IMM3U (insn16
));
8406 case 0x14: /* swi333 */
8407 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8408 N16_IMM3U (insn16
));
8410 case 0x16: /* shi333 */
8411 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8412 N16_IMM3U (insn16
));
8414 case 0x17: /* sbi333 */
8415 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8416 N16_IMM3U (insn16
));
8418 case 0x15: /* swi333.bi */
8419 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8420 N16_IMM3U (insn16
));
8422 case 0x18: /* addri36.sp */
8423 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
8424 N16_IMM6U (insn16
) << 2);
8426 case 0x19: /* lwi45.fe */
8427 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
8428 (N16_IMM5U (insn16
) - 32));
8430 case 0x1a: /* lwi450 */
8431 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8433 case 0x1b: /* swi450 */
8434 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
8437 /* These are r15 implied instructions. */
8438 case 0x30: /* slts45 */
8439 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8441 case 0x31: /* slt45 */
8442 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
8444 case 0x32: /* sltsi45 */
8445 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8447 case 0x33: /* slti45 */
8448 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
8450 case 0x34: /* beqzs8, bnezs8 */
8451 if (insn16
& N32_BIT (8))
8452 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
8454 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
8457 case 0x35: /* break16, ex9.it */
8458 /* Only consider range of v3 break16. */
8459 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
8462 case 0x3c: /* ifcall9 */
8463 insn
= N32_BR2 (SOP0
, 0, N16_IMM9U (insn16
));
8465 case 0x3d: /* movpi45 */
8466 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
8469 case 0x3f: /* MISC33 */
8470 switch (insn16
& 0x7)
8473 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8476 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
8480 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8484 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8488 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8492 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8499 switch (insn16
& 0x7)
8502 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
8505 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8508 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8511 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
8513 case 4: /* xlsb33 */
8514 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
8516 case 5: /* x11b33 */
8517 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
8519 case 6: /* bmski33 */
8520 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8521 1 << __GF (insn16
, 3, 3));
8523 case 7: /* fexti33 */
8524 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
8525 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
8531 switch (__GF (insn16
, 10, 5))
8533 case 0x0: /* mov55 or ifret16 */
8534 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
8535 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
8536 insn
= N32_JREG (JR
, 0, 0, 0, 3);
8538 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
8540 case 0x1: /* movi55 */
8541 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
8543 case 0x1b: /* addi10s (V2) */
8544 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
8548 switch (__GF (insn16
, 11, 4))
8550 case 0x7: /* lwi37.fp/swi37.fp */
8551 if (insn16
& N32_BIT (7)) /* swi37.fp */
8552 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8554 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
8556 case 0x8: /* beqz38 */
8557 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8559 case 0x9: /* bnez38 */
8560 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
8562 case 0xa: /* beqs38/j8, implied r5 */
8563 if (N16_RT38 (insn16
) == 5)
8564 insn
= N32_JI (J
, N16_IMM8S (insn16
));
8566 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8568 case 0xb: /* bnes38 and others. */
8569 if (N16_RT38 (insn16
) == 5)
8571 switch (__GF (insn16
, 5, 3))
8574 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
8577 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
8580 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
8582 case 2: /* ex9.it imm5 */
8583 /* ex9.it had no 32-bit variantl. */
8585 case 5: /* add5.pc */
8586 /* add5.pc had no 32-bit variantl. */
8591 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
8593 case 0xe: /* lwi37/swi37 */
8594 if (insn16
& (1 << 7)) /* swi37.sp */
8595 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8597 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
8602 if (insn
& 0x80000000)
8612 is_sda_access_insn (unsigned long insn
)
8614 switch (N32_OP6 (insn
))
8635 static unsigned long
8636 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
8642 case R_NDS32_GOT_LO12
:
8643 case R_NDS32_GOTOFF_LO12
:
8644 case R_NDS32_PLTREL_LO12
:
8645 case R_NDS32_PLT_GOTREL_LO12
:
8646 case R_NDS32_LO12S0_RELA
:
8647 switch (N32_OP6 (insn
))
8651 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
8655 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), N32_BIT (19));
8659 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
8663 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), N32_BIT (19));
8668 case R_NDS32_LO12S1_RELA
:
8669 switch (N32_OP6 (insn
))
8673 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
8677 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (18));
8681 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), N32_BIT (19));
8686 case R_NDS32_LO12S2_RELA
:
8687 switch (N32_OP6 (insn
))
8691 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
8695 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
8700 case R_NDS32_LO12S2_DP_RELA
:
8701 case R_NDS32_LO12S2_SP_RELA
:
8702 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
8712 /* Linker hasn't found the correct merge section for non-section symbol
8713 in relax time, this work is left to the function elf_link_input_bfd().
8714 So for non-section symbol, _bfd_merged_section_offset is also needed
8715 to find the correct symbol address. */
8718 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
8719 asection
**psec
, Elf_Internal_Rela
*rel
)
8721 asection
*sec
= *psec
;
8724 relocation
= (sec
->output_section
->vma
8725 + sec
->output_offset
+ sym
->st_value
);
8726 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
8728 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
8730 _bfd_merged_section_offset (abfd
, psec
,
8731 elf_section_data (sec
)->sec_info
,
8732 sym
->st_value
+ rel
->r_addend
);
8735 _bfd_merged_section_offset (abfd
, psec
,
8736 elf_section_data (sec
)->sec_info
,
8737 sym
->st_value
) + rel
->r_addend
;
8741 /* If we have changed the section, and our original section is
8742 marked with SEC_EXCLUDE, it means that the original
8743 SEC_MERGE section has been completely subsumed in some
8744 other SEC_MERGE section. In this case, we need to leave
8745 some info around for --emit-relocs. */
8746 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
8747 sec
->kept_section
= *psec
;
8750 rel
->r_addend
-= relocation
;
8751 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8757 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8758 Elf_Internal_Sym
*isymbuf
,
8759 Elf_Internal_Shdr
*symtab_hdr
)
8761 bfd_signed_vma foff
;
8762 bfd_vma symval
, addend
;
8763 Elf_Internal_Rela irel_fn
;
8764 Elf_Internal_Sym
*isym
;
8767 /* Get the value of the symbol referred to by the reloc. */
8768 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8770 /* A local symbol. */
8771 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8773 if (isym
->st_shndx
== SHN_UNDEF
)
8774 sym_sec
= bfd_und_section_ptr
;
8775 else if (isym
->st_shndx
== SHN_ABS
)
8776 sym_sec
= bfd_abs_section_ptr
;
8777 else if (isym
->st_shndx
== SHN_COMMON
)
8778 sym_sec
= bfd_com_section_ptr
;
8780 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8781 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8782 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8783 addend
= irel_fn
.r_addend
;
8788 struct elf_link_hash_entry
*h
;
8790 /* An external symbol. */
8791 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8792 h
= elf_sym_hashes (abfd
)[indx
];
8793 BFD_ASSERT (h
!= NULL
);
8795 while (h
->root
.type
== bfd_link_hash_indirect
8796 || h
->root
.type
== bfd_link_hash_warning
)
8797 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8799 if (h
->root
.type
!= bfd_link_hash_defined
8800 && h
->root
.type
!= bfd_link_hash_defweak
)
8801 /* This appears to be a reference to an undefined
8802 symbol. Just ignore it--it will be caught by the
8803 regular reloc processing. */
8806 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8808 sym_sec
= h
->root
.u
.def
.section
;
8809 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8810 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8811 symval
= symval
+ sym_sec
->output_section
->vma
8812 + sym_sec
->output_offset
;
8815 symval
= (h
->root
.u
.def
.value
8816 + h
->root
.u
.def
.section
->output_section
->vma
8817 + h
->root
.u
.def
.section
->output_offset
);
8818 addend
= irel
->r_addend
;
8821 foff
= symval
+ addend
;
8827 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8828 asection
*sec
, Elf_Internal_Rela
*rel
)
8831 unsigned short insn16
;
8833 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8835 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8836 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8837 if (insn16
== NDS32_NOP16
)
8842 /* It checks whether the instruction could be converted to
8843 16-bit form and returns the converted one.
8845 `internal_relocs' is supposed to be sorted. */
8848 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8849 Elf_Internal_Rela
*reloc
,
8850 Elf_Internal_Rela
*internal_relocs
,
8851 Elf_Internal_Rela
*irelend
,
8854 #define NORMAL_32_TO_16 (1 << 0)
8855 #define SPECIAL_32_TO_16 (1 << 1)
8856 bfd_byte
*contents
= NULL
;
8860 Elf_Internal_Rela
*pc_rel
;
8861 Elf_Internal_Shdr
*symtab_hdr
;
8862 Elf_Internal_Sym
*isymbuf
= NULL
;
8866 if (reloc
->r_offset
+ 4 > sec
->size
)
8869 offset
= reloc
->r_offset
;
8871 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8873 insn
= bfd_getb32 (contents
+ offset
);
8875 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8876 convert_type
= NORMAL_32_TO_16
;
8877 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8878 convert_type
= SPECIAL_32_TO_16
;
8882 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8883 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8886 /* Find the first relocation of the same relocation-type,
8887 so we iteratie them forward. */
8889 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8892 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8894 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8895 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8896 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8897 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8899 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8900 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8905 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8907 /* movi => movi55 */
8908 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8910 /* mem_addr is unsigned, but the value should
8911 be between [-16, 15]. */
8912 if ((mem_addr
+ 0x10) >> 5)
8916 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8917 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8919 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8920 because it can be relaxed to addi for TLS_LE_ADD. */
8923 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8924 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8925 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8926 && convert_type
== SPECIAL_32_TO_16
)
8929 We've selected a best fp-base for this access, so we can
8930 always resolve it anyway. Do nothing. */
8933 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8934 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8935 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8936 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8937 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8938 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8940 /* Prevent unresolved addi instruction translate
8941 to addi45 or addi333. */
8944 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8946 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
);
8947 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8957 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8958 Elf_Internal_Rela
*reloc
,
8959 Elf_Internal_Rela
*internal_relocs
,
8960 Elf_Internal_Rela
*irelend
,
8961 unsigned short insn16
)
8963 Elf_Internal_Rela
*pc_rel
;
8966 offset
= reloc
->r_offset
;
8967 bfd_putb16 (insn16
, contents
+ offset
);
8968 /* Find the first relocation of the same relocation-type,
8969 so we iteratie them forward. */
8971 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8974 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8976 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8977 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8978 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8981 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8983 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8985 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8986 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8988 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8989 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8990 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8992 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8993 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8995 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8999 /* Find a relocation of type specified by `reloc_type'
9000 of the same r_offset with reloc.
9001 If not found, return irelend.
9003 Assuming relocations are sorted by r_offset,
9004 we find the relocation from `reloc' backward untill relocs,
9005 or find it from `reloc' forward untill irelend. */
9007 static Elf_Internal_Rela
*
9008 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
9009 Elf_Internal_Rela
*relocs
,
9010 Elf_Internal_Rela
*irelend
,
9011 enum elf_nds32_reloc_type reloc_type
)
9013 Elf_Internal_Rela
*rel_t
;
9015 /* Find backward. */
9017 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
9019 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
9022 /* We didn't find it backward. Try find it forward. */
9024 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
9026 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
9032 /* Find a relocation of specified type and offset.
9033 `reloc' is just a refence point to find a relocation at specified offset.
9034 If not found, return irelend.
9036 Assuming relocations are sorted by r_offset,
9037 we find the relocation from `reloc' backward untill relocs,
9038 or find it from `reloc' forward untill irelend. */
9040 static Elf_Internal_Rela
*
9041 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
9042 Elf_Internal_Rela
*relocs
,
9043 Elf_Internal_Rela
*irelend
,
9044 enum elf_nds32_reloc_type reloc_type
,
9047 Elf_Internal_Rela
*rel_t
= NULL
;
9049 /* First, we try to find a relocation of offset `offset_p',
9050 and then we use find_relocs_at_address to find specific type. */
9052 if (reloc
->r_offset
> offset_p
)
9054 /* Find backward. */
9056 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
9059 else if (reloc
->r_offset
< offset_p
)
9063 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
9070 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
9073 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
9076 typedef struct nds32_elf_blank nds32_elf_blank_t
;
9077 struct nds32_elf_blank
9079 /* Where the blank begins. */
9081 /* The size of the blank. */
9083 /* The accumulative size before this blank. */
9085 nds32_elf_blank_t
*next
;
9086 nds32_elf_blank_t
*prev
;
9089 static nds32_elf_blank_t
*blank_free_list
= NULL
;
9091 static nds32_elf_blank_t
*
9092 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
9094 nds32_elf_blank_t
*blank_t
;
9096 if (blank_free_list
)
9098 blank_t
= blank_free_list
;
9099 blank_free_list
= blank_free_list
->next
;
9102 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
9104 if (blank_t
== NULL
)
9107 blank_t
->offset
= offset_p
;
9108 blank_t
->size
= size_p
;
9109 blank_t
->total_size
= 0;
9110 blank_t
->next
= NULL
;
9111 blank_t
->prev
= NULL
;
9117 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
9119 if (blank_free_list
)
9121 blank_free_list
->prev
= blank_p
;
9122 blank_p
->next
= blank_free_list
;
9125 blank_p
->next
= NULL
;
9127 blank_p
->prev
= NULL
;
9128 blank_free_list
= blank_p
;
9132 clean_nds32_elf_blank (void)
9134 nds32_elf_blank_t
*blank_t
;
9136 while (blank_free_list
)
9138 blank_t
= blank_free_list
;
9139 blank_free_list
= blank_free_list
->next
;
9144 static nds32_elf_blank_t
*
9145 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
9147 nds32_elf_blank_t
*blank_t
;
9153 while (blank_t
&& addr
< blank_t
->offset
)
9154 blank_t
= blank_t
->prev
;
9155 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
9156 blank_t
= blank_t
->next
;
9162 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9165 nds32_elf_blank_t
*blank_t
;
9167 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9174 if (addr
< blank_t
->offset
+ blank_t
->size
)
9175 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
9177 return blank_t
->total_size
+ blank_t
->size
;
9181 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
9183 nds32_elf_blank_t
*blank_t
, *blank_t2
;
9187 *blank_p
= create_nds32_elf_blank (addr
, len
);
9188 return *blank_p
? TRUE
: FALSE
;
9191 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
9193 if (blank_t
== NULL
)
9195 blank_t
= create_nds32_elf_blank (addr
, len
);
9198 while ((*blank_p
)->prev
!= NULL
)
9199 *blank_p
= (*blank_p
)->prev
;
9200 blank_t
->next
= *blank_p
;
9201 (*blank_p
)->prev
= blank_t
;
9202 (*blank_p
) = blank_t
;
9206 if (addr
< blank_t
->offset
+ blank_t
->size
)
9208 /* Extend the origin blank. */
9209 if (addr
+ len
> blank_t
->offset
+ blank_t
->size
)
9210 blank_t
->size
= addr
+ len
- blank_t
->offset
;
9214 blank_t2
= create_nds32_elf_blank (addr
, len
);
9219 blank_t
->next
->prev
= blank_t2
;
9220 blank_t2
->next
= blank_t
->next
;
9222 blank_t2
->prev
= blank_t
;
9223 blank_t
->next
= blank_t2
;
9224 *blank_p
= blank_t2
;
9231 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
9234 nds32_elf_blank_t
*blank_t
;
9236 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
9243 blank_t
->total_size
= 0;
9244 blank_t
= blank_t
->next
;
9249 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
9250 blank_t
= blank_t
->next
;
9257 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
9259 nds32_elf_blank_t
*blank_t
;
9260 bfd_vma total_size
= 0;
9266 while (blank_t
->prev
)
9267 blank_t
= blank_t
->prev
;
9270 blank_t
->total_size
= total_size
;
9271 total_size
+= blank_t
->size
;
9272 blank_t
= blank_t
->next
;
9277 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
9278 nds32_elf_blank_t
*blank_p
)
9280 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
9281 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
9282 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
9283 unsigned int sec_shndx
; /* The section the be relaxed. */
9284 bfd_byte
*contents
; /* Contents data of iterating section. */
9285 Elf_Internal_Rela
*internal_relocs
;
9286 Elf_Internal_Rela
*irel
;
9287 Elf_Internal_Rela
*irelend
;
9288 struct elf_link_hash_entry
**sym_hashes
;
9289 struct elf_link_hash_entry
**end_hashes
;
9290 unsigned int symcount
;
9292 nds32_elf_blank_t
*blank_t
;
9293 nds32_elf_blank_t
*blank_t2
;
9294 nds32_elf_blank_t
*blank_head
;
9296 blank_head
= blank_t
= blank_p
;
9297 while (blank_head
->prev
!= NULL
)
9298 blank_head
= blank_head
->prev
;
9299 while (blank_t
->next
!= NULL
)
9300 blank_t
= blank_t
->next
;
9302 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
9304 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
9305 blank_t
->next
->prev
= blank_t
;
9307 if (blank_head
->offset
> 0)
9309 blank_head
->prev
= create_nds32_elf_blank (0, 0);
9310 blank_head
->prev
->next
= blank_head
;
9311 blank_head
= blank_head
->prev
;
9314 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
9316 /* The deletion must stop at the next ALIGN reloc for an alignment
9317 power larger than the number of bytes we are deleting. */
9319 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9320 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
9325 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9326 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
9327 symtab_hdr
->contents
= (bfd_byte
*) isym
;
9330 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
9333 blank_t
= blank_head
;
9334 calc_nds32_blank_total (blank_head
);
9336 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
9338 /* Adjust all the relocs. */
9340 /* Relocations MUST be kept in memory, because relaxation adjust them. */
9341 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
9342 TRUE
/* keep_memory */);
9343 irelend
= internal_relocs
+ sect
->reloc_count
;
9345 blank_t
= blank_head
;
9346 blank_t2
= blank_head
;
9348 if (!(sect
->flags
& SEC_RELOC
))
9351 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
9353 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
9357 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
9358 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
9359 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9361 unsigned long val
= 0;
9363 long before
, between
;
9366 switch (ELF32_R_TYPE (irel
->r_info
))
9369 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
9371 case R_NDS32_DIFF16
:
9372 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
9374 case R_NDS32_DIFF32
:
9375 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
9376 /* Get the signed bit and mask for the high part. The
9377 gcc will alarm when right shift 32-bit since the
9378 type size of long may be 32-bit. */
9379 mask
= 0 - (val
>> 31);
9381 offset
= (val
| (mask
- 0xffffffff));
9390 0 |encoded in location|
9391 |------------|-------------------|---------
9393 -- before ---| *****************
9394 --------------------- between ---|
9396 We only care how much data are relax between DIFF,
9399 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9400 between
= get_nds32_elf_blank_total (&blank_t
,
9401 irel
->r_addend
+ offset
, 0);
9402 if (between
== before
)
9403 goto done_adjust_diff
;
9405 switch (ELF32_R_TYPE (irel
->r_info
))
9408 bfd_put_8 (abfd
, offset
- (between
- before
),
9409 contents
+ irel
->r_offset
);
9411 case R_NDS32_DIFF16
:
9412 bfd_put_16 (abfd
, offset
- (between
- before
),
9413 contents
+ irel
->r_offset
);
9415 case R_NDS32_DIFF32
:
9416 bfd_put_32 (abfd
, offset
- (between
- before
),
9417 contents
+ irel
->r_offset
);
9421 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
9422 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
9425 unsigned int len
= 0;
9426 unsigned long before
, between
;
9429 val
= _bfd_read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
9432 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
9433 between
= get_nds32_elf_blank_total (&blank_t
,
9434 irel
->r_addend
+ val
, 0);
9435 if (between
== before
)
9436 goto done_adjust_diff
;
9438 p
= contents
+ irel
->r_offset
;
9440 memset (p
, 0x80, len
);
9442 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
9450 raddr
= irel
->r_offset
;
9451 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
9454 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
9456 if (blank_t2
&& blank_t2
->next
9457 && (blank_t2
->offset
> raddr
9458 || blank_t2
->next
->offset
<= raddr
))
9460 (_("%pB: error: search_nds32_elf_blank reports wrong node"),
9463 /* Mark reloc in deleted portion as NONE.
9464 For some relocs like R_NDS32_LABEL that doesn't modify the
9465 content in the section. R_NDS32_LABEL doesn't belong to the
9466 instruction in the section, so we should preserve it. */
9467 if (raddr
>= blank_t2
->offset
9468 && raddr
< blank_t2
->offset
+ blank_t2
->size
9469 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
9470 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
9471 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
9472 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
9473 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
9474 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
9476 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
9482 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
9483 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
9484 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
9487 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
9488 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
9489 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
9491 if (irel
->r_addend
<= sec
->size
)
9493 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
9498 /* Adjust the local symbols defined in this section. */
9499 blank_t
= blank_head
;
9500 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
9502 if (isym
->st_shndx
== sec_shndx
)
9504 if (isym
->st_value
<= sec
->size
)
9507 bfd_vma orig_addr
= isym
->st_value
;
9509 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
9510 isym
->st_value
-= ahead
;
9512 /* Adjust function size. */
9513 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
9514 && isym
->st_size
> 0)
9516 get_nds32_elf_blank_total
9517 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
9522 /* Now adjust the global symbols defined in this section. */
9523 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
9524 - symtab_hdr
->sh_info
);
9525 sym_hashes
= elf_sym_hashes (abfd
);
9526 end_hashes
= sym_hashes
+ symcount
;
9527 blank_t
= blank_head
;
9528 for (; sym_hashes
< end_hashes
; sym_hashes
++)
9530 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
9532 if ((sym_hash
->root
.type
== bfd_link_hash_defined
9533 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
9534 && sym_hash
->root
.u
.def
.section
== sec
)
9536 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
9539 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
9541 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
9542 sym_hash
->root
.u
.def
.value
-= ahead
;
9544 /* Adjust function size. */
9545 if (sym_hash
->type
== STT_FUNC
)
9547 get_nds32_elf_blank_total
9548 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
9554 contents
= elf_section_data (sec
)->this_hdr
.contents
;
9555 blank_t
= blank_head
;
9556 while (blank_t
->next
)
9558 /* Actually delete the bytes. */
9560 /* If current blank is the last blank overlap with current section,
9561 go to finish process. */
9562 if (sec
->size
<= (blank_t
->next
->offset
))
9565 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9566 contents
+ blank_t
->offset
+ blank_t
->size
,
9567 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
9569 blank_t
= blank_t
->next
;
9572 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
9574 /* There are remaining code between blank and section boundary.
9575 Move the remaining code to appropriate location. */
9576 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
9577 contents
+ blank_t
->offset
+ blank_t
->size
,
9578 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
9579 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
9582 /* This blank is not entirely included in the section,
9583 reduce the section size by only part of the blank size. */
9584 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
9588 blank_t
= blank_head
;
9589 blank_head
= blank_head
->next
;
9590 remove_nds32_elf_blank (blank_t
);
9596 /* Get the contents of a section. */
9599 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
9600 bfd_byte
**contents_p
, bfd_boolean cache
)
9602 /* Get the section contents. */
9603 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
9604 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
9607 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
9610 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
9616 /* Get the contents of the internal symbol of abfd. */
9619 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
9620 Elf_Internal_Sym
**isymbuf_p
)
9622 Elf_Internal_Shdr
*symtab_hdr
;
9623 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
9625 /* Read this BFD's local symbols if we haven't done so already. */
9626 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
9628 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
9629 if (*isymbuf_p
== NULL
)
9631 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
9632 symtab_hdr
->sh_info
, 0,
9634 if (*isymbuf_p
== NULL
)
9638 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
9643 /* Range of small data. */
9644 static bfd_vma sdata_range
[2][2];
9645 static bfd_vma
const sdata_init_range
[2] =
9646 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
9649 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
9650 bfd_byte
*contents
, bfd_vma addr
)
9652 unsigned long insn
= bfd_getb32 (contents
+ addr
);
9654 if (insn
& 0x80000000)
9660 /* Set the gp relax range. We have to measure the safe range
9661 to do gp relaxation. */
9664 relax_range_measurement (bfd
*abfd
)
9666 asection
*sec_f
, *sec_b
;
9667 /* For upper bound. */
9668 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
9670 static int decide_relax_range
= 0;
9672 int range_number
= ARRAY_SIZE (sdata_init_range
);
9674 if (decide_relax_range
)
9676 decide_relax_range
= 1;
9678 if (sda_rela_sec
== NULL
)
9680 /* Since there is no data sections, we assume the range is page size. */
9681 for (i
= 0; i
< range_number
; i
++)
9683 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9684 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9689 /* Get the biggest alignment power after the gp located section. */
9690 sec_f
= sda_rela_sec
->output_section
;
9691 sec_b
= sec_f
->next
;
9693 while (sec_b
!= NULL
)
9695 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9696 align
= (1 << sec_b
->alignment_power
);
9697 sec_b
= sec_b
->next
;
9700 /* I guess we can not determine the section before
9701 gp located section, so we assume the align is max page size. */
9702 for (i
= 0; i
< range_number
; i
++)
9704 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9705 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9706 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9707 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9711 /* These are macros used to check flags encoded in r_addend.
9712 They are only used by nds32_elf_relax_section (). */
9713 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9714 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9715 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9716 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9718 static const char * unrecognized_reloc_msg
=
9719 /* xgettext:c-format */
9720 N_("%pB: warning: %s points to unrecognized reloc at %#" PRIx64
);
9722 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9725 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9726 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9727 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9728 Elf_Internal_Shdr
*symtab_hdr
)
9730 /* There are 3 variations for LONGCALL1
9731 case 4-4-2; 16-bit on, optimize off or optimize for space
9732 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9733 ori ta, ta, lo12(symbol) ; LO12S0
9736 case 4-4-4; 16-bit off, optimize don't care
9737 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9738 ori ta, ta, lo12(symbol) ; LO12S0
9741 case 4-4-4; 16-bit on, optimize for speed
9742 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9743 ori ta, ta, lo12(symbol) ; LO12S0
9745 Check code for -mlong-calls output. */
9747 /* Get the reloc for the address from which the register is
9748 being loaded. This reloc will tell us which function is
9749 actually being called. */
9752 int seq_len
; /* Original length of instruction sequence. */
9754 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9755 bfd_signed_vma foff
;
9758 irelend
= internal_relocs
+ sec
->reloc_count
;
9759 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9760 laddr
= irel
->r_offset
;
9761 *insn_len
= seq_len
;
9763 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9764 R_NDS32_HI20_RELA
, laddr
);
9765 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9766 R_NDS32_LO12S0_ORI_RELA
,
9769 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9771 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL1",
9772 (uint64_t) irel
->r_offset
);
9776 /* Get the value of the symbol referred to by the reloc. */
9777 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9779 /* This condition only happened when symbol is undefined. */
9781 || foff
< -CONSERVATIVE_24BIT_S1
9782 || foff
>= CONSERVATIVE_24BIT_S1
)
9785 /* Relax to: jal symbol; 25_PCREL. */
9786 /* For simplicity of coding, we are going to modify the section
9787 contents, the section relocs, and the BFD symbol table. We
9788 must tell the rest of the code not to free up this
9789 information. It would be possible to instead create a table
9790 of changes which have to be made, as is done in coff-mips.c;
9791 that would be more work, but would require less memory when
9792 the linker is run. */
9794 /* Replace the long call with a jal. */
9795 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9796 R_NDS32_25_PCREL_RELA
);
9797 irel
->r_addend
= hi_irelfn
->r_addend
;
9799 /* We don't resolve this here but resolve it in relocate_section. */
9801 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9804 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9806 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9811 insn16
= NDS32_NOP16
;
9812 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9814 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9815 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9821 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9822 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9825 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9826 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9827 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9828 Elf_Internal_Shdr
*symtab_hdr
)
9830 /* bltz rt, .L1 ; LONGCALL2
9831 jal symbol ; 25_PCREL
9834 /* Get the reloc for the address from which the register is
9835 being loaded. This reloc will tell us which function is
9836 actually being called. */
9840 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9841 bfd_signed_vma foff
;
9843 irelend
= internal_relocs
+ sec
->reloc_count
;
9844 laddr
= irel
->r_offset
;
9846 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9847 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9849 if (i1_irelfn
== irelend
)
9851 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL2",
9852 (uint64_t) irel
->r_offset
);
9856 insn
= bfd_getb32 (contents
+ laddr
);
9858 /* Get the value of the symbol referred to by the reloc. */
9859 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
);
9862 || foff
< -CONSERVATIVE_16BIT_S1
9863 || foff
>= CONSERVATIVE_16BIT_S1
)
9866 /* Relax to bgezal rt, label ; 17_PCREL
9867 or bltzal rt, label ; 17_PCREL */
9869 /* Convert to complimentary conditional call. */
9870 insn
= CONVERT_CONDITION_CALL (insn
);
9872 /* For simplicity of coding, we are going to modify the section
9873 contents, the section relocs, and the BFD symbol table. We
9874 must tell the rest of the code not to free up this
9875 information. It would be possible to instead create a table
9876 of changes which have to be made, as is done in coff-mips.c;
9877 that would be more work, but would require less memory when
9878 the linker is run. */
9880 /* Clean unnessary relocations. */
9882 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9884 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9885 R_NDS32_17_PCREL_RELA
, laddr
);
9886 if (cond_irelfn
!= irelend
)
9887 cond_irelfn
->r_info
=
9888 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9890 /* Replace the long call with a bgezal. */
9891 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9892 R_NDS32_17_PCREL_RELA
);
9893 irel
->r_addend
= i1_irelfn
->r_addend
;
9895 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9901 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9904 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9905 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9906 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9907 Elf_Internal_Shdr
*symtab_hdr
)
9909 /* There are 3 variations for LONGCALL3
9910 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9911 bltz rt, $1 ; LONGCALL3
9912 sethi ta, hi20(symbol) ; HI20
9913 ori ta, ta, lo12(symbol) ; LO12S0
9917 case 4-4-4-4; 16-bit off, optimize don't care
9918 bltz rt, $1 ; LONGCALL3
9919 sethi ta, hi20(symbol) ; HI20
9920 ori ta, ta, lo12(symbol) ; LO12S0
9924 case 4-4-4-4; 16-bit on, optimize for speed
9925 bltz rt, $1 ; LONGCALL3
9926 sethi ta, hi20(symbol) ; HI20
9927 ori ta, ta, lo12(symbol) ; LO12S0
9931 /* Get the reloc for the address from which the register is
9932 being loaded. This reloc will tell us which function is
9933 actually being called. */
9936 int seq_len
; /* Original length of instruction sequence. */
9938 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9939 bfd_signed_vma foff
;
9942 irelend
= internal_relocs
+ sec
->reloc_count
;
9943 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9944 laddr
= irel
->r_offset
;
9945 *insn_len
= seq_len
;
9948 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9949 R_NDS32_HI20_RELA
, laddr
+ 4);
9951 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9952 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9954 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9956 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL3",
9957 (uint64_t) irel
->r_offset
);
9961 /* Get the value of the symbol referred to by the reloc. */
9962 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
9965 || foff
< -CONSERVATIVE_24BIT_S1
9966 || foff
>= CONSERVATIVE_24BIT_S1
)
9969 insn
= bfd_getb32 (contents
+ laddr
);
9970 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9972 /* Relax to bgezal rt, label ; 17_PCREL
9973 or bltzal rt, label ; 17_PCREL */
9975 /* Convert to complimentary conditional call. */
9976 insn
= CONVERT_CONDITION_CALL (insn
);
9977 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9981 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9983 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9985 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9988 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9989 R_NDS32_17_PCREL_RELA
, laddr
);
9990 if (cond_irelfn
!= irelend
)
9992 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9993 R_NDS32_17_PCREL_RELA
);
9994 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9999 insn16
= NDS32_NOP16
;
10000 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10001 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10003 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10007 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10009 /* Relax to the following instruction sequence
10010 bltz rt, $1 ; LONGCALL2
10011 jal symbol ; 25_PCREL
10015 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
10017 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10018 R_NDS32_25_PCREL_RELA
);
10020 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
10022 lo_irelfn
->r_info
=
10023 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
10027 insn16
= NDS32_NOP16
;
10028 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10029 lo_irelfn
->r_info
=
10030 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
10031 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10038 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
10041 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10042 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10043 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10044 Elf_Internal_Shdr
*symtab_hdr
)
10046 /* There are 3 variations for LONGJUMP1
10047 case 4-4-2; 16-bit bit on, optimize off or optimize for space
10048 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
10049 ori ta, ta, lo12(symbol) ; LO12S0
10052 case 4-4-4; 16-bit off, optimize don't care
10053 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
10054 ori ta, ta, lo12(symbol) ; LO12S0
10057 case 4-4-4; 16-bit on, optimize for speed
10058 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
10059 ori ta, ta, lo12(symbol) ; LO12S0
10062 /* Get the reloc for the address from which the register is
10063 being loaded. This reloc will tell us which function is
10064 actually being called. */
10067 int seq_len
; /* Original length of instruction sequence. */
10068 int insn16_on
; /* 16-bit on/off. */
10070 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
10071 bfd_signed_vma foff
;
10073 unsigned long reloc
;
10075 irelend
= internal_relocs
+ sec
->reloc_count
;
10076 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10077 laddr
= irel
->r_offset
;
10078 *insn_len
= seq_len
;
10079 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
10082 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10083 R_NDS32_HI20_RELA
, laddr
);
10085 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10086 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
10087 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
10089 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP1",
10090 (uint64_t) irel
->r_offset
);
10094 /* Get the value of the symbol referred to by the reloc. */
10095 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10098 || foff
>= CONSERVATIVE_24BIT_S1
10099 || foff
< -CONSERVATIVE_24BIT_S1
)
10103 && foff
>= -ACCURATE_8BIT_S1
10104 && foff
< ACCURATE_8BIT_S1
10105 && (seq_len
& 0x2))
10108 /* 16-bit on, but not optimized for speed. */
10109 reloc
= R_NDS32_9_PCREL_RELA
;
10111 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
10114 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10119 reloc
= R_NDS32_25_PCREL_RELA
;
10121 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
10124 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
10125 irel
->r_addend
= 0;
10128 hi_irelfn
->r_info
=
10129 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10130 lo_irelfn
->r_info
=
10131 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
10133 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
10135 insn16
= NDS32_NOP16
;
10136 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10137 lo_irelfn
->r_info
=
10138 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10140 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10146 /* Revert condition branch. This function does not check if the input
10147 instruction is condition branch or not. */
10150 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
10151 uint16_t *re_insn16
, uint32_t *re_insn
)
10153 uint32_t comp_insn
= 0;
10154 uint16_t comp_insn16
= 0;
10158 if (N32_OP6 (insn
) == N32_OP6_BR1
)
10161 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
10162 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
10164 /* Insn can be contracted to 16-bit implied r5. */
10166 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
10167 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10170 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
10172 /* bnec $ta, imm11, label. */
10173 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
10177 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
10178 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
10179 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
10181 if (N32_IS_RT3 (insn
))
10183 /* Insn can be contracted to 16-bit. */
10185 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
10186 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
10188 else if (N32_RT5 (insn
) == REG_R15
)
10190 /* Insn can be contracted to 16-bit. */
10192 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
10199 switch ((insn16
& 0xf000) >> 12)
10202 /* beqz38 or bnez38 */
10203 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10204 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
10205 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
10209 /* beqs38 or bnes38 */
10210 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
10211 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
10212 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
10217 /* beqzS8 or bnezS8 */
10218 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
10219 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
10220 comp_insn
|= REG_R15
<< 20;
10227 if (comp_insn
&& re_insn
)
10228 *re_insn
= comp_insn
;
10229 if (comp_insn16
&& re_insn16
)
10230 *re_insn16
= comp_insn16
;
10233 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
10236 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10237 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10238 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10239 Elf_Internal_Shdr
*symtab_hdr
)
10241 /* There are 3 variations for LONGJUMP2
10242 case 2-4; 1st insn convertible, 16-bit on,
10243 optimize off or optimize for space
10244 bnes38 rt, ra, $1 ; LONGJUMP2
10248 case 4-4; 1st insn not convertible
10249 bne rt, ra, $1 ; LONGJUMP2
10253 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10254 bne rt, ra, $1 ; LONGJUMP2
10258 /* Get the reloc for the address from which the register is
10259 being loaded. This reloc will tell us which function is
10260 actually being called. */
10263 int seq_len
; /* Original length of instruction sequence. */
10264 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
10267 bfd_signed_vma foff
;
10268 uint32_t insn
, re_insn
= 0;
10269 uint16_t insn16
, re_insn16
= 0;
10270 unsigned long reloc
, cond_reloc
;
10272 enum elf_nds32_reloc_type checked_types
[] =
10273 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10275 irelend
= internal_relocs
+ sec
->reloc_count
;
10276 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10277 laddr
= irel
->r_offset
;
10278 *insn_len
= seq_len
;
10279 first_size
= (seq_len
== 6) ? 2 : 4;
10282 find_relocs_at_address_addr (irel
, internal_relocs
,
10283 irelend
, R_NDS32_25_PCREL_RELA
,
10284 laddr
+ first_size
);
10286 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10289 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10290 checked_types
[i
], laddr
);
10291 if (cond_irelfn
!= irelend
)
10295 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
10297 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP2",
10298 (uint64_t) irel
->r_offset
);
10302 /* Get the value of the symbol referred to by the reloc. */
10303 foff
= calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
);
10305 || foff
< -CONSERVATIVE_16BIT_S1
10306 || foff
>= CONSERVATIVE_16BIT_S1
)
10309 /* Get the all corresponding instructions. */
10310 if (first_size
== 4)
10312 insn
= bfd_getb32 (contents
+ laddr
);
10313 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10317 insn16
= bfd_getb16 (contents
+ laddr
);
10318 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10321 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
10322 && foff
< ACCURATE_8BIT_S1
- first_size
)
10324 if (first_size
== 4)
10326 /* Don't convert it to 16-bit now, keep this as relaxable for
10327 ``label reloc; INSN16''. */
10329 /* Save comp_insn32 to buffer. */
10330 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10332 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10333 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10334 cond_reloc
= R_NDS32_INSN16
;
10338 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10340 reloc
= R_NDS32_9_PCREL_RELA
;
10341 cond_reloc
= R_NDS32_NONE
;
10344 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10345 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10346 && foff
< ACCURATE_14BIT_S1
- first_size
))
10348 /* beqs label ; 15_PCREL */
10349 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10351 reloc
= R_NDS32_15_PCREL_RELA
;
10352 cond_reloc
= R_NDS32_NONE
;
10354 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10355 && foff
>= -CONSERVATIVE_16BIT_S1
10356 && foff
< CONSERVATIVE_16BIT_S1
)
10358 /* beqz label ; 17_PCREL */
10359 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10361 reloc
= R_NDS32_17_PCREL_RELA
;
10362 cond_reloc
= R_NDS32_NONE
;
10367 /* Set all relocations. */
10368 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
10369 irel
->r_addend
= i2_irelfn
->r_addend
;
10371 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10373 cond_irelfn
->r_addend
= 0;
10375 if ((seq_len
^ *insn_len
) & 0x2)
10377 insn16
= NDS32_NOP16
;
10378 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
10379 i2_irelfn
->r_offset
= 4;
10380 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10382 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10386 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
10391 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
10394 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10395 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10396 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10397 Elf_Internal_Shdr
*symtab_hdr
)
10399 /* There are 5 variations for LONGJUMP3
10400 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
10401 optimize off or optimize for space
10402 bnes38 rt, ra, $1 ; LONGJUMP3
10403 sethi ta, hi20(symbol) ; HI20
10404 ori ta, ta, lo12(symbol) ; LO12S0
10408 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
10409 bnes38 rt, ra, $1 ; LONGJUMP3
10410 sethi ta, hi20(symbol) ; HI20
10411 ori ta, ta, lo12(symbol) ; LO12S0
10415 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
10416 optimize off or optimize for space
10417 bne rt, ra, $1 ; LONGJUMP3
10418 sethi ta, hi20(symbol) ; HI20
10419 ori ta, ta, lo12(symbol) ; LO12S0
10423 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
10424 16-bit off if no INSN16
10425 bne rt, ra, $1 ; LONGJUMP3
10426 sethi ta, hi20(symbol) ; HI20
10427 ori ta, ta, lo12(symbol) ; LO12S0
10431 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
10432 16-bit off if no INSN16
10433 bne rt, ra, $1 ; LONGJUMP3
10434 sethi ta, hi20(symbol) ; HI20
10435 ori ta, ta, lo12(symbol) ; LO12S0
10439 /* Get the reloc for the address from which the register is
10440 being loaded. This reloc will tell us which function is
10441 actually being called. */
10442 enum elf_nds32_reloc_type checked_types
[] =
10443 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
10445 int reloc_off
= 0, cond_removed
= 0, convertible
;
10447 int seq_len
; /* Original length of instruction sequence. */
10448 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
10451 bfd_signed_vma foff
;
10452 uint32_t insn
, re_insn
= 0;
10453 uint16_t insn16
, re_insn16
= 0;
10454 unsigned long reloc
, cond_reloc
;
10456 irelend
= internal_relocs
+ sec
->reloc_count
;
10457 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10458 laddr
= irel
->r_offset
;
10459 *insn_len
= seq_len
;
10461 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
10468 /* Get all needed relocations. */
10470 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10471 R_NDS32_HI20_RELA
, laddr
+ first_size
);
10473 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10474 R_NDS32_LO12S0_ORI_RELA
,
10475 laddr
+ first_size
+ 4);
10477 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10480 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10481 checked_types
[i
], laddr
);
10482 if (cond_irelfn
!= irelend
)
10486 if (hi_irelfn
== irelend
10487 || lo_irelfn
== irelend
10488 || cond_irelfn
== irelend
)
10490 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP3",
10491 (uint64_t) irel
->r_offset
);
10495 /* Get the value of the symbol referred to by the reloc. */
10496 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
);
10499 || foff
< -CONSERVATIVE_24BIT_S1
10500 || foff
>= CONSERVATIVE_24BIT_S1
)
10503 /* Get the all corresponding instructions. */
10504 if (first_size
== 4)
10506 insn
= bfd_getb32 (contents
+ laddr
);
10507 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10511 insn16
= bfd_getb16 (contents
+ laddr
);
10512 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10515 /* For simplicity of coding, we are going to modify the section
10516 contents, the section relocs, and the BFD symbol table. We
10517 must tell the rest of the code not to free up this
10518 information. It would be possible to instead create a table
10519 of changes which have to be made, as is done in coff-mips.c;
10520 that would be more work, but would require less memory when
10521 the linker is run. */
10524 && foff
>= -ACCURATE_8BIT_S1
- first_size
10525 && foff
< ACCURATE_8BIT_S1
- first_size
)
10527 if (!(seq_len
& 0x2))
10529 /* Don't convert it to 16-bit now, keep this as relaxable
10530 for ``label reloc; INSN1a''6. */
10531 /* Save comp_insn32 to buffer. */
10532 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10534 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
10535 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
10536 cond_reloc
= R_NDS32_INSN16
;
10540 /* Not optimize for speed; convert sequence to 16-bit. */
10541 /* Save comp_insn16 to buffer. */
10542 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
10544 reloc
= R_NDS32_9_PCREL_RELA
;
10545 cond_reloc
= R_NDS32_NONE
;
10549 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
10550 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
10551 && foff
< ACCURATE_14BIT_S1
- first_size
))
10553 /* beqs label ; 15_PCREL */
10554 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10556 reloc
= R_NDS32_15_PCREL_RELA
;
10557 cond_reloc
= R_NDS32_NONE
;
10560 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10561 && foff
>= -CONSERVATIVE_16BIT_S1
10562 && foff
< CONSERVATIVE_16BIT_S1
)
10564 /* beqz label ; 17_PCREL */
10565 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
10567 reloc
= R_NDS32_17_PCREL_RELA
;
10568 cond_reloc
= R_NDS32_NONE
;
10571 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10572 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10574 /* Relax to one of the following 3 variations
10576 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
10578 bnes38 rt, $1 ; LONGJUMP2
10582 case 4-4; 1st insn not convertible, others don't care
10583 bne rt, ra, $1 ; LONGJUMP2
10587 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
10588 bne rt, ra, $1 ; LONGJUMP2
10592 /* Offset for first instruction. */
10594 /* Use j label as second instruction. */
10595 *insn_len
= 4 + first_size
;
10597 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
10598 reloc
= R_NDS32_LONGJUMP2
;
10599 cond_reloc
= R_NDS32_25_PLTREL
;
10604 if (cond_removed
== 1)
10606 /* Set all relocations. */
10607 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
10608 irel
->r_addend
= hi_irelfn
->r_addend
;
10610 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
10612 cond_irelfn
->r_addend
= 0;
10613 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10618 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10619 irel
->r_addend
= irel
->r_addend
;
10620 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
10624 if ((seq_len
^ *insn_len
) & 0x2)
10626 insn16
= NDS32_NOP16
;
10627 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
10628 lo_irelfn
->r_offset
= *insn_len
;
10629 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10631 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10635 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
10640 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
10643 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10644 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10645 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10646 Elf_Internal_Shdr
*symtab_hdr
)
10648 /* The pattern for LONGCALL4. Support for function cse.
10649 sethi ta, hi20(symbol) ; LONGCALL4/HI20
10650 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10651 jral ta ; PTR_RES/EMPTY/INSN16 */
10655 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
10656 Elf_Internal_Rela
*irelend
;
10657 bfd_signed_vma foff
;
10659 irelend
= internal_relocs
+ sec
->reloc_count
;
10660 laddr
= irel
->r_offset
;
10662 /* Get the reloc for the address from which the register is
10663 being loaded. This reloc will tell us which function is
10664 actually being called. */
10665 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10666 R_NDS32_HI20_RELA
, laddr
);
10668 if (hi_irel
== irelend
)
10670 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10671 (uint64_t) irel
->r_offset
);
10675 /* Get the value of the symbol referred to by the reloc. */
10676 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10678 /* This condition only happened when symbol is undefined. */
10680 || foff
< -CONSERVATIVE_24BIT_S1
10681 || foff
>= CONSERVATIVE_24BIT_S1
)
10684 /* Relax to: jal symbol; 25_PCREL. */
10685 /* For simplicity of coding, we are going to modify the section
10686 contents, the section relocs, and the BFD symbol table. We
10687 must tell the rest of the code not to free up this
10688 information. It would be possible to instead create a table
10689 of changes which have to be made, as is done in coff-mips.c;
10690 that would be more work, but would require less memory when
10691 the linker is run. */
10693 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10694 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10695 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10696 R_NDS32_EMPTY
, irel
->r_addend
);
10698 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10700 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL4",
10701 (uint64_t) irel
->r_offset
);
10704 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10705 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10706 if (insn
& 0x80000000)
10709 /* Replace the long call with a jal. */
10710 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10711 R_NDS32_25_PCREL_RELA
);
10712 ptr_irel
->r_addend
= 1;
10714 /* We don't resolve this here but resolve it in relocate_section. */
10716 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10719 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10721 /* If there is function cse, HI20 can not remove now. */
10722 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10723 R_NDS32_LONGCALL4
, laddr
);
10724 if (call_irel
== irelend
)
10728 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10731 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10732 R_NDS32_INSN16
, irel
->r_addend
);
10733 if (insn_irel
!= irelend
)
10734 insn_irel
->r_info
=
10735 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10740 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10743 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10744 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10745 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10746 Elf_Internal_Shdr
*symtab_hdr
)
10748 /* The pattern for LONGCALL5.
10749 bltz rt, .L1 ; LONGCALL5/17_PCREL
10750 jal symbol ; 25_PCREL
10755 Elf_Internal_Rela
*cond_irel
, *irelend
;
10756 bfd_signed_vma foff
;
10758 irelend
= internal_relocs
+ sec
->reloc_count
;
10759 laddr
= irel
->r_offset
;
10760 insn
= bfd_getb32 (contents
+ laddr
);
10762 /* Get the reloc for the address from which the register is
10763 being loaded. This reloc will tell us which function is
10764 actually being called. */
10766 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10767 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10768 if (cond_irel
== irelend
)
10770 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL5",
10771 (uint64_t) irel
->r_offset
);
10775 /* Get the value of the symbol referred to by the reloc. */
10776 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
10779 || foff
< -CONSERVATIVE_16BIT_S1
10780 || foff
>= CONSERVATIVE_16BIT_S1
)
10783 /* Relax to bgezal rt, label ; 17_PCREL
10784 or bltzal rt, label ; 17_PCREL. */
10786 /* Convert to complimentary conditional call. */
10787 insn
= CONVERT_CONDITION_CALL (insn
);
10789 /* For simplicity of coding, we are going to modify the section
10790 contents, the section relocs, and the BFD symbol table. We
10791 must tell the rest of the code not to free up this
10792 information. It would be possible to instead create a table
10793 of changes which have to be made, as is done in coff-mips.c;
10794 that would be more work, but would require less memory when
10795 the linker is run. */
10797 /* Modify relocation and contents. */
10798 cond_irel
->r_info
=
10799 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10801 /* Replace the long call with a bgezal. */
10802 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10805 /* Clean unnessary relocations. */
10806 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10808 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10809 R_NDS32_17_PCREL_RELA
, laddr
);
10810 cond_irel
->r_info
=
10811 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10816 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10819 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10820 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10821 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10822 Elf_Internal_Shdr
*symtab_hdr
)
10824 /* The pattern for LONGCALL6.
10825 bltz rt, .L1 ; LONGCALL6/17_PCREL
10826 sethi ta, hi20(symbol) ; HI20/PTR
10827 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10828 jral ta ; PTR_RES/EMPTY/INSN16
10833 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10834 bfd_signed_vma foff
;
10836 irelend
= internal_relocs
+ sec
->reloc_count
;
10837 laddr
= irel
->r_offset
;
10839 /* Get the reloc for the address from which the register is
10840 being loaded. This reloc will tell us which function is
10841 actually being called. */
10842 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10843 R_NDS32_EMPTY
, irel
->r_addend
);
10845 if (em_irel
== irelend
)
10847 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGCALL6",
10848 (uint64_t) irel
->r_offset
);
10852 /* Get the value of the symbol referred to by the reloc. */
10853 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
10856 || foff
< -CONSERVATIVE_24BIT_S1
10857 || foff
>= CONSERVATIVE_24BIT_S1
)
10860 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10861 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10862 if (insn
& 0x80000000)
10865 insn
= bfd_getb32 (contents
+ laddr
);
10866 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10868 /* Relax to bgezal rt, label ; 17_PCREL
10869 or bltzal rt, label ; 17_PCREL. */
10871 /* Convert to complimentary conditional call. */
10873 insn
= CONVERT_CONDITION_CALL (insn
);
10874 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10877 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10879 /* Set resolved relocation. */
10881 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10882 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10883 if (cond_irel
== irelend
)
10885 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10886 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10889 cond_irel
->r_addend
= 1;
10891 /* Clear relocations. */
10894 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10897 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10898 R_NDS32_17_PCREL_RELA
, laddr
);
10899 if (cond_irel
!= irelend
)
10900 cond_irel
->r_info
=
10901 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10904 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10905 R_NDS32_INSN16
, irel
->r_addend
);
10906 if (cond_irel
!= irelend
)
10907 cond_irel
->r_info
=
10908 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10911 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10913 /* Relax to the following instruction sequence
10914 bltz rt, .L1 ; LONGCALL2/17_PCREL
10915 jal symbol ; 25_PCREL/PTR_RES
10918 /* Convert instruction. */
10920 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10922 /* Convert relocations. */
10923 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10924 R_NDS32_25_PCREL_RELA
);
10926 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10928 /* Set resolved relocation. */
10930 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10931 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10932 if (cond_irel
== irelend
)
10934 _bfd_error_handler (unrecognized_reloc_msg
, abfd
,
10935 "R_NDS32_LONGCALL6", (uint64_t) irel
->r_offset
);
10938 cond_irel
->r_addend
= 1;
10941 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10942 R_NDS32_INSN16
, irel
->r_addend
);
10943 if (cond_irel
!= irelend
)
10944 cond_irel
->r_info
=
10945 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10950 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10953 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10954 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10955 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10956 Elf_Internal_Shdr
*symtab_hdr
)
10958 /* The pattern for LONGJUMP4.
10959 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10960 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10961 jr ta ; PTR_RES/INSN16/EMPTY */
10964 int seq_len
; /* Original length of instruction sequence. */
10966 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10967 bfd_signed_vma foff
;
10969 irelend
= internal_relocs
+ sec
->reloc_count
;
10970 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10971 laddr
= irel
->r_offset
;
10972 *insn_len
= seq_len
;
10974 /* Get the reloc for the address from which the register is
10975 being loaded. This reloc will tell us which function is
10976 actually being called. */
10978 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10979 R_NDS32_HI20_RELA
, laddr
);
10981 if (hi_irel
== irelend
)
10983 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
10984 (uint64_t) irel
->r_offset
);
10988 /* Get the value of the symbol referred to by the reloc. */
10989 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
);
10992 || foff
>= CONSERVATIVE_24BIT_S1
10993 || foff
< -CONSERVATIVE_24BIT_S1
)
10996 /* Convert it to "j label", it may be converted to j8 in the final
10997 pass of relaxation. Therefore, we do not consider this currently. */
10998 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10999 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11000 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11001 R_NDS32_EMPTY
, irel
->r_addend
);
11003 if (ptr_irel
== irelend
|| em_irel
== irelend
)
11005 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP4",
11006 (uint64_t) irel
->r_offset
);
11011 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
11012 ptr_irel
->r_addend
= 1;
11014 /* Write instruction. */
11016 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
11018 /* Clear relocations. */
11019 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11021 /* If there is function cse, HI20 can not remove now. */
11022 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11023 R_NDS32_LONGJUMP4
, laddr
);
11024 if (call_irel
== irelend
)
11028 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
11034 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
11037 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11038 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11039 int *seq_len
, bfd_byte
*contents
,
11040 Elf_Internal_Sym
*isymbuf
,
11041 Elf_Internal_Shdr
*symtab_hdr
)
11043 /* There are 2 variations for LONGJUMP5
11044 case 2-4; 1st insn convertible, 16-bit on.
11045 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
11046 j label ; 25_PCREL/INSN16
11049 case 4-4; 1st insn not convertible
11050 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
11051 j label ; 25_PCREL/INSN16
11055 Elf_Internal_Rela
*cond_irel
, *irelend
;
11057 bfd_signed_vma foff
;
11058 uint32_t insn
, re_insn
= 0;
11059 uint16_t insn16
, re_insn16
= 0;
11060 unsigned long reloc
;
11062 enum elf_nds32_reloc_type checked_types
[] =
11063 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
11064 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
11066 irelend
= internal_relocs
+ sec
->reloc_count
;
11067 laddr
= irel
->r_offset
;
11069 /* Get the reloc for the address from which the register is
11070 being loaded. This reloc will tell us which function is
11071 actually being called. */
11074 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11075 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
11076 if (cond_irel
== irelend
)
11078 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP5",
11079 (uint64_t) irel
->r_offset
);
11083 /* Get the value of the symbol referred to by the reloc. */
11084 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11087 || foff
< -CONSERVATIVE_16BIT_S1
11088 || foff
>= CONSERVATIVE_16BIT_S1
)
11091 /* Get the all corresponding instructions. */
11092 insn
= bfd_getb32 (contents
+ laddr
);
11093 /* Check instruction size. */
11094 if (insn
& 0x80000000)
11097 insn16
= insn
>> 16;
11098 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11101 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11103 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11104 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11106 /* beqs label ; 15_PCREL. */
11107 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11108 reloc
= R_NDS32_15_PCREL_RELA
;
11110 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11111 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11113 /* beqz label ; 17_PCREL. */
11114 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11115 reloc
= R_NDS32_17_PCREL_RELA
;
11117 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
11118 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
11120 /* beqc label ; 9_PCREL. */
11121 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11122 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
11127 /* Set all relocations. */
11128 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
11130 /* Clean relocations. */
11131 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11132 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11134 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11135 checked_types
[i
], laddr
);
11136 if (cond_irel
!= irelend
)
11139 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11141 /* If the branch instruction is 2 byte, it cannot remove
11142 directly. Only convert it to nop16 and remove it after
11143 checking alignment issue. */
11144 insn16
= NDS32_NOP16
;
11145 bfd_putb16 (insn16
, contents
+ laddr
);
11146 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11149 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11158 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
11161 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11162 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11163 int *seq_len
, bfd_byte
*contents
,
11164 Elf_Internal_Sym
*isymbuf
,
11165 Elf_Internal_Shdr
*symtab_hdr
)
11167 /* There are 5 variations for LONGJUMP6
11168 case : 2-4-4-4; 1st insn convertible, 16-bit on.
11169 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11170 sethi ta, hi20(symbol) ; HI20/PTR
11171 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11172 jr ta ; PTR_RES/INSN16/EMPTY
11175 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
11176 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
11177 sethi ta, hi20(symbol) ; HI20/PTR
11178 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
11179 jr ta ; PTR_RES/INSN16/EMPTY
11182 enum elf_nds32_reloc_type checked_types
[] =
11183 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
11184 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
11186 int reloc_off
= 0, cond_removed
= 0;
11188 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
11190 bfd_signed_vma foff
;
11191 uint32_t insn
, re_insn
= 0;
11192 uint16_t insn16
, re_insn16
= 0;
11193 unsigned long reloc
;
11195 irelend
= internal_relocs
+ sec
->reloc_count
;
11196 laddr
= irel
->r_offset
;
11198 /* Get the reloc for the address from which the register is
11199 being loaded. This reloc will tell us which function is
11200 actually being called. */
11201 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11202 R_NDS32_EMPTY
, irel
->r_addend
);
11204 if (em_irel
== irelend
)
11206 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP6",
11207 (uint64_t) irel
->r_offset
);
11211 /* Get the value of the symbol referred to by the reloc. */
11212 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
);
11215 || foff
< -CONSERVATIVE_24BIT_S1
11216 || foff
>= CONSERVATIVE_24BIT_S1
)
11219 insn
= bfd_getb32 (contents
+ laddr
);
11220 /* Check instruction size. */
11221 if (insn
& 0x80000000)
11224 insn16
= insn
>> 16;
11225 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
11228 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
11230 /* For simplicity of coding, we are going to modify the section
11231 contents, the section relocs, and the BFD symbol table. We
11232 must tell the rest of the code not to free up this
11233 information. It would be possible to instead create a table
11234 of changes which have to be made, as is done in coff-mips.c;
11235 that would be more work, but would require less memory when
11236 the linker is run. */
11238 if (N32_OP6 (re_insn
) == N32_OP6_BR1
11239 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
11241 /* beqs label ; 15_PCREL. */
11242 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11243 reloc
= R_NDS32_15_PCREL_RELA
;
11246 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
11247 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
11249 /* beqz label ; 17_PCREL. */
11250 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
11251 reloc
= R_NDS32_17_PCREL_RELA
;
11254 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
11255 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
11257 /* Relax to one of the following 2 variations
11259 case 2-4; 1st insn convertible, 16-bit on.
11260 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
11261 j label ; 25_PCREL/INSN16
11264 case 4-4; 1st insn not convertible
11265 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
11266 j label ; 25_PCREL/INSN16
11269 /* Use j label as second instruction. */
11271 reloc
= R_NDS32_25_PCREL_RELA
;
11272 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
11277 /* Set all relocations. */
11278 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
11281 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11282 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
11283 cond_irel
->r_addend
= 1;
11285 /* Use INSN16 of first branch instruction to distinguish if keeping
11286 INSN16 of final instruction or not. */
11287 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11288 R_NDS32_INSN16
, irel
->r_offset
);
11289 if (insn_irel
== irelend
)
11291 /* Clean the final INSN16. */
11293 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11294 R_NDS32_INSN16
, em_irel
->r_offset
);
11295 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11299 if (cond_removed
== 1)
11303 /* Clear relocations. */
11304 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11306 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11309 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11310 checked_types
[i
], laddr
);
11311 if (cond_irel
!= irelend
)
11314 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
11316 /* If the branch instruction is 2 byte, it cannot remove
11317 directly. Only convert it to nop16 and remove it after
11318 checking alignment issue. */
11319 insn16
= NDS32_NOP16
;
11320 bfd_putb16 (insn16
, contents
+ laddr
);
11321 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11324 cond_irel
->r_info
=
11325 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
11331 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11332 R_NDS32_LONGJUMP5
);
11338 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
11341 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11342 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11343 int *seq_len
, bfd_byte
*contents
,
11344 Elf_Internal_Sym
*isymbuf
,
11345 Elf_Internal_Shdr
*symtab_hdr
)
11347 /* There are 2 variations for LONGJUMP5
11348 case 2-4; 1st insn convertible, 16-bit on.
11349 movi55 ta, imm11 ; LONGJUMP7/INSN16
11350 beq rt, ta, label ; 15_PCREL
11352 case 4-4; 1st insn not convertible
11353 movi55 ta, imm11 ; LONGJUMP7/INSN16
11354 beq rt, ta, label ; 15_PCREL */
11357 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
11358 bfd_signed_vma foff
;
11359 uint32_t insn
, re_insn
= 0;
11363 irelend
= internal_relocs
+ sec
->reloc_count
;
11364 laddr
= irel
->r_offset
;
11366 /* Get the reloc for the address from which the register is
11367 being loaded. This reloc will tell us which function is
11368 actually being called. */
11371 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11372 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
11373 if (cond_irel
== irelend
)
11375 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LONGJUMP7",
11376 (uint64_t) irel
->r_offset
);
11380 /* Get the value of the symbol referred to by the reloc. */
11381 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
);
11384 || foff
< -CONSERVATIVE_8BIT_S1
11385 || foff
>= CONSERVATIVE_8BIT_S1
)
11388 /* Get the first instruction for its size. */
11389 insn
= bfd_getb32 (contents
+ laddr
);
11390 if (insn
& 0x80000000)
11393 /* Get the immediate from movi55. */
11394 imm11
= N16_IMM5S (insn
>> 16);
11398 /* Get the immediate from movi. */
11399 imm11
= N32_IMM20S (insn
);
11402 /* Get the branch instruction. */
11403 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
11404 /* Convert instruction to BR3. */
11405 if ((insn
>> 14) & 0x1)
11406 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
11408 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
11410 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
11412 /* Set all relocations. */
11413 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11414 R_NDS32_WORD_9_PCREL_RELA
);
11416 /* Clean relocations. */
11417 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11418 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11419 R_NDS32_INSN16
, irel
->r_offset
);
11420 if (insn_irel
!= irelend
)
11424 /* If the first insntruction is 16bit, convert it to nop16. */
11425 insn16
= NDS32_NOP16
;
11426 bfd_putb16 (insn16
, contents
+ laddr
);
11427 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
11430 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
11438 /* We figure out and reassign the best gp value in nds32_elf_final_sda_base
11439 for each relax round. But the gp may changed dramatically and then cause
11440 the truncated to fit errors for the the converted gp instructions.
11441 Therefore, we must reserve the minimum but safe enough size to prevent it. */
11444 nds32_elf_relax_guard (bfd_vma
*access_addr
, bfd_vma local_sda
, asection
*sec
,
11445 Elf_Internal_Rela
*irel
, bfd_boolean
*again
,
11447 struct elf_nds32_link_hash_table
*table
,
11448 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
11452 static bfd_boolean sec_pass
= FALSE
;
11453 static asection
*first_sec
= NULL
, *sym_sec
;
11454 /* Record the number of instructions which may be removed. */
11455 static int count
= 0, record_count
;
11456 Elf_Internal_Sym
*isym
;
11457 struct elf_link_hash_entry
*h
= NULL
;
11459 unsigned long r_symndx
;
11460 bfd
*abfd
= sec
->owner
;
11461 static bfd_vma record_sda
= 0;
11462 int sda_offset
= 0;
11464 /* Force doing relaxation when hyper-relax is high. */
11465 if (table
->hyper_relax
== 2)
11468 /* Do not relax the load/store patterns for the first
11474 else if (first_sec
== sec
)
11476 record_count
= count
;
11487 /* Generally, _SDA_BASE_ is fixed or smaller. But the large
11488 DATA_SEGMENT_ALIGN size in the linker script may make it
11489 get even bigger. */
11490 if (record_sda
== 0)
11491 record_sda
= local_sda
;
11492 else if (local_sda
> record_sda
)
11493 sda_offset
= local_sda
- record_sda
;
11495 /* Assume the instruction will be removed in the best case. */
11498 /* We record the offset to gp for each symbol, and then check
11499 if it is changed dramatically after relaxing.
11500 (global symbol): elf32_nds32_hash_entry (h)->offset_to_gp
11501 (local symbol) : elf32_nds32_local_gp_offset (abfd)[r_symndx]. */
11502 r_symndx
= ELF32_R_SYM (irel
->r_info
);
11503 if (r_symndx
>= symtab_hdr
->sh_info
)
11505 /* Global symbols. */
11506 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11507 h
= elf_sym_hashes (abfd
)[indx
];
11508 sym_sec
= h
->root
.u
.def
.section
;
11509 if (NDS32_GUARD_SEC_P (sym_sec
->flags
)
11510 || bfd_is_abs_section (sym_sec
))
11512 /* Forbid doing relaxation when hyper-relax is low. */
11513 if (table
->hyper_relax
== 0)
11516 offset_to_gp
= *access_addr
- local_sda
;
11517 if (elf32_nds32_hash_entry (h
)->offset_to_gp
== 0)
11518 elf32_nds32_hash_entry (h
)->offset_to_gp
= offset_to_gp
;
11519 else if (abs (elf32_nds32_hash_entry (h
)->offset_to_gp
)
11520 < abs (offset_to_gp
) - sda_offset
)
11522 /* This may cause the error, so we reserve the
11523 safe enough size for relaxing. */
11524 if (*access_addr
>= local_sda
)
11525 *access_addr
+= (record_count
* 4);
11527 *access_addr
-= (record_count
* 4);
11534 /* Local symbols. */
11535 if (!elf32_nds32_allocate_local_sym_info (abfd
))
11537 isym
= isymbuf
+ r_symndx
;
11539 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
11540 if (NDS32_GUARD_SEC_P (sym_sec
->flags
))
11542 /* Forbid doing relaxation when hyper-relax is low. */
11543 if (table
->hyper_relax
== 0)
11546 offset_to_gp
= *access_addr
- local_sda
;
11547 if (elf32_nds32_local_gp_offset (abfd
)[r_symndx
] == 0)
11548 elf32_nds32_local_gp_offset (abfd
)[r_symndx
] = offset_to_gp
;
11549 else if (abs (elf32_nds32_local_gp_offset (abfd
)[r_symndx
])
11550 < abs (offset_to_gp
) - sda_offset
)
11552 /* This may cause the error, so we reserve the
11553 safe enough size for relaxing. */
11554 if (*access_addr
>= local_sda
)
11555 *access_addr
+= (record_count
* 4);
11557 *access_addr
-= (record_count
* 4);
11566 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
11568 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
11571 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
11572 asection
*sec
, Elf_Internal_Rela
*irel
,
11573 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11574 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11575 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
,
11576 struct elf_nds32_link_hash_table
*table
)
11578 int eliminate_sethi
= 0, range_type
;
11580 bfd_vma local_sda
, laddr
;
11581 int seq_len
; /* Original length of instruction sequence. */
11583 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
11584 bfd_vma access_addr
= 0;
11585 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11586 struct elf_link_hash_entry
*h
= NULL
;
11588 enum elf_nds32_reloc_type checked_types
[] =
11589 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
11590 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
11591 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
11592 R_NDS32_TLS_LE_HI20
11595 irelend
= internal_relocs
+ sec
->reloc_count
;
11596 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
11597 laddr
= irel
->r_offset
;
11598 *insn_len
= seq_len
;
11600 /* Get the high part relocation. */
11601 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
11603 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11604 checked_types
[i
], laddr
);
11605 if (hi_irelfn
!= irelend
)
11609 if (hi_irelfn
== irelend
)
11611 /* Not R_NDS32_HI20_RELA. */
11613 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LOADSTORE",
11614 (uint64_t) irel
->r_offset
);
11618 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
11619 nds32_elf_final_sda_base (sec
->output_section
->owner
,
11620 link_info
, &local_sda
, FALSE
);
11622 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
11624 case R_NDS32_HI20_RELA
:
11625 insn
= bfd_getb32 (contents
+ laddr
);
11627 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
11629 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
11631 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
11632 h
= elf_sym_hashes (abfd
)[indx
];
11636 if (range_type
== NDS32_LOADSTORE_IMM
11637 && access_addr
< CONSERVATIVE_20BIT
11638 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11640 eliminate_sethi
= 1;
11644 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11646 eliminate_sethi
= 1;
11649 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, hi_irelfn
,
11650 NULL
, FALSE
, table
, isymbuf
, symtab_hdr
))
11653 if (!load_store_relax
)
11656 /* Case for set gp register. */
11657 if (N32_RT5 (insn
) == REG_GP
)
11660 if (range_type
== NDS32_LOADSTORE_FLOAT_S
11661 || range_type
== NDS32_LOADSTORE_FLOAT_D
)
11663 range_l
= sdata_range
[0][0];
11664 range_h
= sdata_range
[0][1];
11668 range_l
= sdata_range
[1][0];
11669 range_h
= sdata_range
[1][1];
11677 /* Delete sethi instruction. */
11678 if (eliminate_sethi
== 1
11679 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11680 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11682 hi_irelfn
->r_info
=
11683 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
11685 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11693 /* Relax LO12 relocation for nds32_elf_relax_section. */
11696 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11697 asection
*sec
, Elf_Internal_Rela
*irel
,
11698 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
11699 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
11700 struct elf_nds32_link_hash_table
*table
)
11703 bfd_vma local_sda
, laddr
;
11704 unsigned long reloc
;
11705 bfd_vma access_addr
;
11706 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11707 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
11708 struct elf_link_hash_entry
*h
= NULL
;
11711 /* For SDA base relative relaxation. */
11712 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11713 &local_sda
, FALSE
);
11715 irelend
= internal_relocs
+ sec
->reloc_count
;
11716 laddr
= irel
->r_offset
;
11717 insn
= bfd_getb32 (contents
+ laddr
);
11719 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
11722 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11724 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
11726 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
11727 h
= elf_sym_hashes (abfd
)[indx
];
11731 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
11732 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
11734 reloc
= R_NDS32_20_RELA
;
11735 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11736 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11737 bfd_putb32 (insn
, contents
+ laddr
);
11741 if (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0)
11743 /* Fall through. */
11745 else if (!nds32_elf_relax_guard (&access_addr
, local_sda
, sec
, irel
, NULL
,
11746 FALSE
, table
, isymbuf
, symtab_hdr
))
11749 range_l
= sdata_range
[1][0];
11750 range_h
= sdata_range
[1][1];
11751 switch (ELF32_R_TYPE (irel
->r_info
))
11753 case R_NDS32_LO12S0_RELA
:
11754 reloc
= R_NDS32_SDA19S0_RELA
;
11756 case R_NDS32_LO12S1_RELA
:
11757 reloc
= R_NDS32_SDA18S1_RELA
;
11759 case R_NDS32_LO12S2_RELA
:
11760 reloc
= R_NDS32_SDA17S2_RELA
;
11762 case R_NDS32_LO12S2_DP_RELA
:
11763 range_l
= sdata_range
[0][0];
11764 range_h
= sdata_range
[0][1];
11765 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11767 case R_NDS32_LO12S2_SP_RELA
:
11768 range_l
= sdata_range
[0][0];
11769 range_h
= sdata_range
[0][1];
11770 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11776 /* There are range_h and range_l because linker has to promise
11777 all sections move cross one page together. */
11778 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11779 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
)
11780 || (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) == 0))
11782 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11784 /* Maybe we should add R_NDS32_INSN16 reloc type here
11785 or manually do some optimization. sethi can't be
11786 eliminated when updating $gp so the relative ori
11787 needs to be preserved. */
11790 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11793 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11794 bfd_putb32 (insn
, contents
+ laddr
);
11796 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11798 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11799 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11801 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11808 /* Relax PTR relocation for nds32_elf_relax_section. */
11811 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11812 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11813 int *seq_len
, bfd_byte
*contents
)
11815 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11817 irelend
= internal_relocs
+ sec
->reloc_count
;
11820 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11821 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11823 if (re_irel
== irelend
)
11825 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_PTR",
11826 (uint64_t) irel
->r_offset
);
11830 if (re_irel
->r_addend
!= 1)
11833 /* Pointed target is relaxed and no longer needs this void *,
11834 change the type to NONE. */
11835 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11837 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11838 not exist, it means only count 1 and remove it directly. */
11839 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11840 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11841 R_NDS32_PTR_COUNT
);
11842 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11844 if (count_irel
!= irelend
)
11846 if (--count_irel
->r_addend
> 0)
11850 if (ptr_irel
!= irelend
)
11853 /* If the PTR_COUNT is already 0, remove current instruction. */
11854 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11859 /* Relax LWC relocation for nds32_elf_relax_section. */
11862 nds32_elf_relax_flsi (struct bfd_link_info
*link_info
, bfd
*abfd
,
11863 asection
*sec
, Elf_Internal_Rela
*irel
,
11864 Elf_Internal_Rela
*internal_relocs
,
11865 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11866 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11869 sethi ra, hi20(symbol) ; HI20/LOADSTORE
11870 ori ra, ra, lo12(symbol) ; LO12S0/PTR/PTR/.../INSN16
11871 flsi fsa, [ra + offset1] ; LSI/PTR_RESOLVED/INSN16
11872 flsi fsb, [ra + offset2] ; LSI/PTR_RESOLVED/INSN16
11876 bfd_vma local_sda
, laddr
;
11877 unsigned long reloc
;
11878 bfd_vma access_addr
, flsi_offset
;
11879 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
11880 Elf_Internal_Rela
*irelend
, *re_irel
;
11881 unsigned int opcode
;
11883 irelend
= internal_relocs
+ sec
->reloc_count
;
11884 laddr
= irel
->r_offset
;
11885 insn
= bfd_getb32 (contents
+ laddr
);
11887 if ((insn
& 0x80000000) || !is_sda_access_insn (insn
))
11890 /* Can not do relaxation for bi format. */
11891 if ((insn
& 0x1000))
11894 /* Only deal with flsi, fssi, fldi, fsdi, so far. */
11895 opcode
= N32_OP6 (insn
);
11896 if ((opcode
== N32_OP6_LWC
) || (opcode
== N32_OP6_SWC
))
11897 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11898 else if ((opcode
== N32_OP6_LDC
) || (opcode
== N32_OP6_SDC
))
11899 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11903 re_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11904 R_NDS32_PTR_RESOLVED
);
11905 if (re_irel
== irelend
)
11907 _bfd_error_handler (unrecognized_reloc_msg
, abfd
, "R_NDS32_LSI",
11908 (uint64_t) irel
->r_offset
);
11912 /* For SDA base relative relaxation. */
11913 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11914 &local_sda
, FALSE
);
11915 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11916 flsi_offset
= (insn
& 0xfff) << 2;
11917 access_addr
+= flsi_offset
;
11918 range_l
= sdata_range
[0][0];
11919 range_h
= sdata_range
[0][1];
11921 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11922 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11924 /* Turn flsi instruction into sda access format. */
11925 insn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
11927 /* Add relocation type to flsi. */
11928 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11929 irel
->r_addend
+= flsi_offset
;
11930 bfd_putb32 (insn
, contents
+ re_irel
->r_offset
);
11932 re_irel
->r_addend
|= 1;
11938 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11939 Elf_Internal_Rela
*internal_relocs
,
11940 bfd_byte
*contents
,
11941 nds32_elf_blank_t
**relax_blank_list
,
11942 int optimize
, int opt_size
)
11944 /* This code block is used to adjust 4-byte alignment by relax a pair
11945 of instruction a time.
11947 It recognizes three types of relocations.
11948 1. R_NDS32_LABEL - a alignment.
11949 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11950 3. is_16bit_NOP () - remove a 16-bit instruction. */
11952 /* TODO: It seems currently implementation only support 4-byte alignment.
11953 We should handle any-alignment. */
11955 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11956 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11957 Elf_Internal_Rela rel_temp
;
11958 Elf_Internal_Rela
*irelend
;
11962 /* Checking for branch relaxation relies on the relocations to
11963 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11964 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11965 sizeof (Elf_Internal_Rela
), compar_reloc
);
11967 irelend
= internal_relocs
+ sec
->reloc_count
;
11969 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11970 /* FIXME: Can we generate the right order in assembler?
11971 So we don't have to swapping them here. */
11973 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11974 label_rel
< irelend
; label_rel
++)
11976 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11979 /* Find the first reloc has the same offset with label_rel. */
11980 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11983 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11985 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11987 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11990 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11991 && insn_rel
< label_rel
)
11993 /* Swap the two reloc if the R_NDS32_INSN16 is
11994 before R_NDS32_LABEL. */
11995 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11996 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11997 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
12003 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
12004 or higher, remove other R_NDS32_LABEL with lower alignment.
12005 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
12006 then the R_NDS32_LABEL sequence is broke. */
12007 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
12009 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
12011 if (label_rel
== NULL
)
12013 if (tmp_rel
->r_addend
< 2)
12014 label_rel
= tmp_rel
;
12017 else if (tmp_rel
->r_addend
> 1)
12019 /* Remove all LABEL relocation from label_rel to tmp_rel
12020 including relocations with same offset as tmp_rel. */
12021 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
; tmp2_rel
++)
12023 if (tmp2_rel
->r_offset
== tmp_rel
->r_offset
)
12026 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
12027 && tmp2_rel
->r_addend
< 2)
12029 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
12035 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
12037 /* A new INSN16 which can be converted, so clear label_rel. */
12038 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
12040 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
12047 /* Optimized for speed and nothing has not been relaxed.
12048 It's time to align labels.
12049 We may convert a 16-bit instruction right before a label to
12050 32-bit, in order to align the label if necessary
12051 all reloc entries has been sorted by r_offset. */
12052 for (irel
= internal_relocs
;
12053 irel
< irelend
&& irel
->r_offset
< sec
->size
; irel
++)
12055 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
12056 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
12059 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
12061 /* A new INSN16 found, resize the old one. */
12062 if (is_convert_32_to_16
12063 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
12064 || is_16bit_NOP (abfd
, sec
, irel
))
12068 /* Previous INSN16 reloc exists, reduce its
12070 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
12073 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
12074 internal_relocs
, irelend
, insn16
);
12076 if (!insert_nds32_elf_blank_recalc_total
12077 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12080 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12082 if (!insert_nds32_elf_blank_recalc_total
12083 (relax_blank_list
, insn_rel
->r_offset
, 2))
12087 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
12089 /* Save the new one for later use. */
12093 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
12096 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
12098 /* Search for label. */
12099 int force_relax
= 0;
12101 /* Label on 16-bit instruction or optimization
12102 needless, just reset this reloc. */
12103 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
12104 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
12107 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
12112 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
12113 irel
->r_offset
, 1);
12117 /* Check if there is case which can not be aligned. */
12118 if (irel
->r_addend
== 2 && address
& 0x2)
12123 /* Try to align this label. */
12125 if ((irel
->r_addend
& 0x1f) < 2)
12127 /* Check if there is a INSN16 at the same address.
12128 Label_rel always seats before insn_rel after
12131 /* Search for INSN16 at LABEL location. If INSN16 is at
12132 same location and this LABEL alignment is lower than 2,
12133 the INSN16 can be converted to 2-byte. */
12134 for (tmp_rel
= irel
;
12135 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
12138 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
12139 && (is_convert_32_to_16
12140 (abfd
, sec
, tmp_rel
, internal_relocs
,
12142 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
12150 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
12152 /* Label not aligned. */
12153 /* Previous reloc exists, reduce its size to 16-bit. */
12154 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
12155 internal_relocs
, irelend
, &insn16
))
12157 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
12158 internal_relocs
, irelend
, insn16
);
12160 if (!insert_nds32_elf_blank_recalc_total
12161 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12164 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12166 if (!insert_nds32_elf_blank_recalc_total
12167 (relax_blank_list
, insn_rel
->r_offset
, 2))
12172 /* INSN16 reloc is used. */
12178 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
12179 if (insn_rel
&& (address
& 0x2 || opt_size
))
12181 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
12184 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
12186 if (!insert_nds32_elf_blank_recalc_total
12187 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
12189 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12192 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
12194 if (!insert_nds32_elf_blank_recalc_total
12195 (relax_blank_list
, insn_rel
->r_offset
, 2))
12197 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
12206 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
12207 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
12209 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12210 Elf_Internal_Shdr
*symtab_hdr
;
12211 Elf_Internal_Rela
*internal_relocs
;
12212 Elf_Internal_Rela
*irel
;
12213 Elf_Internal_Rela
*irelend
;
12214 Elf_Internal_Sym
*isymbuf
= NULL
;
12215 bfd_byte
*contents
= NULL
;
12216 bfd_boolean result
= TRUE
;
12222 /* Target dependnet option. */
12223 struct elf_nds32_link_hash_table
*table
;
12224 int load_store_relax
;
12226 relax_blank_list
= NULL
;
12230 /* Nothing to do for
12231 * relocatable link or
12232 * non-relocatable section or
12233 * non-code section or
12235 * no reloc entry. */
12236 if (bfd_link_relocatable (link_info
)
12237 || (sec
->flags
& SEC_RELOC
) == 0
12238 || (sec
->flags
& SEC_EXCLUDE
) != 0
12239 || (sec
->flags
& SEC_CODE
) == 0
12241 || sec
->reloc_count
== 0)
12244 /* 09.12.11 Workaround. */
12245 /* We have to adjust align for R_NDS32_LABEL if needed.
12246 The adjust approach only can fix 2-byte align once. */
12247 if (sec
->alignment_power
> 2)
12250 /* Do TLS model conversion once at first. */
12251 nds32_elf_unify_tls_model (abfd
, sec
, contents
, link_info
);
12253 /* The optimization type to do. */
12255 table
= nds32_elf_hash_table (link_info
);
12257 /* Save the first section for abs symbol relaxation.
12258 This is used for checking gp relaxation in the
12259 nds32_elf_relax_loadstore and nds32_elf_relax_lo12. */
12260 nds32_elf_relax_guard (NULL
, 0, sec
, NULL
, again
, TRUE
,
12261 table
, NULL
, NULL
);
12263 /* The begining of general relaxation. */
12265 if (is_SDA_BASE_set
== 0)
12268 is_SDA_BASE_set
= 1;
12269 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12271 relax_range_measurement (abfd
);
12274 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12275 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12276 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12277 TRUE
/* keep_memory */);
12278 if (internal_relocs
== NULL
)
12281 irelend
= internal_relocs
+ sec
->reloc_count
;
12282 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12283 irelend
, R_NDS32_RELAX_ENTRY
);
12285 if (irel
== irelend
)
12288 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12290 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12293 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12296 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12300 load_store_relax
= table
->load_store_relax
;
12302 /* Get symbol table and section content. */
12303 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12304 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12307 /* Do relax loop only when finalize is not done.
12308 Take care of relaxable relocs except INSN16. */
12309 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12311 int seq_len
; /* Original length of instruction sequence. */
12312 int insn_len
= 0; /* Final length of instruction sequence. */
12313 bfd_boolean removed
;
12316 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12317 && (irel
->r_addend
& 0x1f) >= 2)
12320 /* Relocation Types
12321 R_NDS32_LONGCALL1 53
12322 R_NDS32_LONGCALL2 54
12323 R_NDS32_LONGCALL3 55
12324 R_NDS32_LONGJUMP1 56
12325 R_NDS32_LONGJUMP2 57
12326 R_NDS32_LONGJUMP3 58
12327 R_NDS32_LOADSTORE 59 */
12328 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12329 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12330 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12332 /* Relocation Types
12333 R_NDS32_LONGCALL4 107
12334 R_NDS32_LONGCALL5 108
12335 R_NDS32_LONGCALL6 109
12336 R_NDS32_LONGJUMP4 110
12337 R_NDS32_LONGJUMP5 111
12338 R_NDS32_LONGJUMP6 112
12339 R_NDS32_LONGJUMP7 113 */
12340 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12341 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12344 /* Relocation Types
12345 R_NDS32_LO12S0_RELA 30
12346 R_NDS32_LO12S1_RELA 29
12347 R_NDS32_LO12S2_RELA 28
12348 R_NDS32_LO12S2_SP_RELA 71
12349 R_NDS32_LO12S2_DP_RELA 70
12350 R_NDS32_GOT_LO12 46
12351 R_NDS32_GOTOFF_LO12 50
12352 R_NDS32_PLTREL_LO12 65
12353 R_NDS32_PLT_GOTREL_LO12 67
12354 R_NDS32_17IFC_PCREL_RELA 96
12355 R_NDS32_GOT_SUFF 193
12356 R_NDS32_GOTOFF_SUFF 194
12357 R_NDS32_PLT_GOT_SUFF 195
12358 R_NDS32_MULCALL_SUFF 196
12360 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12361 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12362 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12363 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12364 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12365 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12366 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12367 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12368 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12369 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12370 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12371 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12372 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12373 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12374 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
12375 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LSI
)
12380 insn_len
= seq_len
;
12383 switch (ELF32_R_TYPE (irel
->r_info
))
12385 case R_NDS32_LONGCALL1
:
12386 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12387 &insn_len
, contents
, isymbuf
,
12390 case R_NDS32_LONGCALL2
:
12391 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12392 &insn_len
, contents
, isymbuf
,
12395 case R_NDS32_LONGCALL3
:
12396 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12397 &insn_len
, contents
, isymbuf
,
12400 case R_NDS32_LONGJUMP1
:
12401 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12402 &insn_len
, contents
, isymbuf
,
12405 case R_NDS32_LONGJUMP2
:
12406 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12407 &insn_len
, contents
, isymbuf
,
12410 case R_NDS32_LONGJUMP3
:
12411 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12412 &insn_len
, contents
, isymbuf
,
12415 case R_NDS32_LONGCALL4
:
12416 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12417 &insn_len
, contents
, isymbuf
,
12420 case R_NDS32_LONGCALL5
:
12421 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12422 &insn_len
, contents
, isymbuf
,
12425 case R_NDS32_LONGCALL6
:
12426 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12427 &insn_len
, contents
, isymbuf
,
12430 case R_NDS32_LONGJUMP4
:
12431 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12432 &insn_len
, contents
, isymbuf
,
12435 case R_NDS32_LONGJUMP5
:
12436 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12437 &insn_len
, &seq_len
, contents
,
12438 isymbuf
, symtab_hdr
);
12440 case R_NDS32_LONGJUMP6
:
12441 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12442 &insn_len
, &seq_len
, contents
,
12443 isymbuf
, symtab_hdr
);
12445 case R_NDS32_LONGJUMP7
:
12446 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12447 &insn_len
, &seq_len
, contents
,
12448 isymbuf
, symtab_hdr
);
12450 case R_NDS32_LOADSTORE
:
12451 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12452 internal_relocs
, &insn_len
,
12453 contents
, isymbuf
, symtab_hdr
,
12454 load_store_relax
, table
);
12456 case R_NDS32_LO12S0_RELA
:
12457 case R_NDS32_LO12S1_RELA
:
12458 case R_NDS32_LO12S2_RELA
:
12459 case R_NDS32_LO12S2_DP_RELA
:
12460 case R_NDS32_LO12S2_SP_RELA
:
12461 /* Relax for low part. */
12462 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12463 contents
, isymbuf
, symtab_hdr
, table
);
12465 /* It is impossible to delete blank, so just continue. */
12468 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12469 &insn_len
, &seq_len
, contents
);
12472 nds32_elf_relax_flsi (link_info
, abfd
, sec
, irel
, internal_relocs
,
12473 contents
, isymbuf
, symtab_hdr
, again
);
12475 case R_NDS32_GOT_LO12
:
12476 case R_NDS32_GOTOFF_LO12
:
12477 case R_NDS32_PLTREL_LO12
:
12478 case R_NDS32_PLT_GOTREL_LO12
:
12479 case R_NDS32_GOTPC_LO12
:
12480 case R_NDS32_TLS_LE_LO12
:
12481 case R_NDS32_TLS_LE_ADD
:
12482 case R_NDS32_TLS_LE_LS
:
12483 case R_NDS32_PLT_GOT_SUFF
:
12484 case R_NDS32_GOT_SUFF
:
12485 case R_NDS32_GOTOFF_SUFF
:
12491 if (removed
&& seq_len
- insn_len
> 0)
12493 if (!insert_nds32_elf_blank
12494 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12495 seq_len
- insn_len
))
12501 calc_nds32_blank_total (relax_blank_list
);
12503 if (table
->relax_fp_as_gp
)
12505 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12511 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12519 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12520 &relax_blank_list
, optimize
, opt_size
))
12524 /* It doesn't matter optimize_for_space_no_align anymore.
12525 If object file is assembled with flag '-Os',
12526 the we don't adjust jump-destination on 4-byte boundary. */
12528 if (relax_blank_list
)
12530 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12531 relax_blank_list
= NULL
;
12536 /* Closing the section, so we don't relax it anymore. */
12537 bfd_vma sec_size_align
;
12538 Elf_Internal_Rela
*tmp_rel
;
12540 /* Pad to alignment boundary. Only handle current section alignment. */
12541 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12542 & ((-1U) << sec
->alignment_power
);
12543 if ((sec_size_align
- sec
->size
) & 0x2)
12545 insn16
= NDS32_NOP16
;
12546 bfd_putb16 (insn16
, contents
+ sec
->size
);
12550 while (sec_size_align
!= sec
->size
)
12552 insn
= NDS32_NOP32
;
12553 bfd_putb32 (insn
, contents
+ sec
->size
);
12557 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12558 irelend
, R_NDS32_RELAX_ENTRY
);
12559 if (tmp_rel
!= irelend
)
12560 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12562 clean_nds32_elf_blank ();
12566 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
12567 free (internal_relocs
);
12569 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12572 if (symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12582 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12584 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12585 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12590 nds32_elf_section_flags (const Elf_Internal_Shdr
*hdr
)
12592 const char *name
= hdr
->bfd_section
->name
;
12594 if (strncmp (name
, ".sbss", 5) == 0
12595 || strncmp (name
, ".sdata", 6) == 0)
12596 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
12602 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12603 struct bfd_link_info
*info
,
12604 void *finfo ATTRIBUTE_UNUSED
,
12605 bfd_boolean (*func
) (void *, const char *,
12606 Elf_Internal_Sym
*,
12608 struct elf_link_hash_entry
*)
12611 FILE *sym_ld_script
= NULL
;
12612 struct elf_nds32_link_hash_table
*table
;
12614 table
= nds32_elf_hash_table (info
);
12615 sym_ld_script
= table
->sym_ld_script
;
12617 if (check_start_export_sym
)
12618 fprintf (sym_ld_script
, "}\n");
12623 static enum elf_reloc_type_class
12624 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12625 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12626 const Elf_Internal_Rela
*rela
)
12628 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12630 case R_NDS32_RELATIVE
:
12631 return reloc_class_relative
;
12632 case R_NDS32_JMP_SLOT
:
12633 return reloc_class_plt
;
12635 return reloc_class_copy
;
12637 return reloc_class_normal
;
12641 /* Put target dependent option into info hash table. */
12643 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12644 int relax_fp_as_gp
,
12645 int eliminate_gc_relocs
,
12646 FILE * sym_ld_script
,
12648 int tls_desc_trampoline
,
12649 int load_store_relax
)
12651 struct elf_nds32_link_hash_table
*table
;
12653 table
= nds32_elf_hash_table (link_info
);
12657 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12658 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12659 table
->sym_ld_script
= sym_ld_script
;
12660 table
->hyper_relax
= hyper_relax
;
12661 table
->tls_desc_trampoline
= tls_desc_trampoline
;
12662 table
->load_store_relax
= load_store_relax
;
12666 /* These functions and data-structures are used for fp-as-gp
12669 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12670 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12671 the read-only section and read-write section. */
12672 #define FAG_WINDOW (508 - 32)
12674 /* An nds32_fag represent a gp-relative access.
12675 We find best fp-base by using a sliding window
12676 to find a base address which can cover most gp-access. */
12679 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12680 bfd_vma addr
; /* The address of this fag. */
12681 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12682 It is used for applying FP7U2_FLAG. */
12683 int count
; /* How many times this address is referred.
12684 There should be exactly `count' relocations
12686 int relas_capcity
; /* The buffer size of relas.
12687 We use an array instead of linked-list,
12688 and realloc is used to adjust buffer size. */
12692 nds32_fag_init (struct nds32_fag
*head
)
12694 memset (head
, 0, sizeof (struct nds32_fag
));
12698 nds32_fag_verify (struct nds32_fag
*head
)
12700 struct nds32_fag
*iter
;
12701 struct nds32_fag
*prev
;
12707 if (prev
&& prev
->addr
>= iter
->addr
)
12708 puts ("Bug in fp-as-gp insertion.");
12714 /* Insert a fag in ascending order.
12715 If a fag of the same address already exists,
12716 they are chained by relas array. */
12719 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12720 Elf_Internal_Rela
* rel
)
12722 struct nds32_fag
*iter
;
12723 struct nds32_fag
*new_fag
;
12724 const int INIT_RELAS_CAP
= 4;
12727 iter
->next
&& iter
->next
->addr
<= addr
;
12729 /* Find somewhere to insert. */ ;
12731 /* `iter' will be equal to `head' if the list is empty. */
12732 if (iter
!= head
&& iter
->addr
== addr
)
12734 /* The address exists in the list.
12735 Insert `rel' into relocation list, relas. */
12737 /* Check whether relas is big enough. */
12738 if (iter
->count
>= iter
->relas_capcity
)
12740 iter
->relas_capcity
*= 2;
12741 iter
->relas
= bfd_realloc
12742 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12744 iter
->relas
[iter
->count
++] = rel
;
12748 /* This is a new address. Create a fag node for it. */
12749 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12750 memset (new_fag
, 0, sizeof (*new_fag
));
12751 new_fag
->addr
= addr
;
12752 new_fag
->count
= 1;
12753 new_fag
->next
= iter
->next
;
12754 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12755 new_fag
->relas
= (Elf_Internal_Rela
**)
12756 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12757 new_fag
->relas
[0] = rel
;
12758 iter
->next
= new_fag
;
12760 nds32_fag_verify (head
);
12764 nds32_fag_free_list (struct nds32_fag
*head
)
12766 struct nds32_fag
*iter
;
12771 struct nds32_fag
*tmp
= iter
;
12779 /* Find the best fp-base address.
12780 The relocation associated with that address is returned,
12781 so we can track the symbol instead of a fixed address.
12783 When relaxation, the address of an datum may change,
12784 because a text section is shrinked, so the data section
12785 moves forward. If the aligments of text and data section
12786 are different, their distance may change too.
12787 Therefore, tracking a fixed address is not appriate. */
12790 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12792 struct nds32_fag
*base
; /* First fag in the window. */
12793 struct nds32_fag
*last
; /* First fag outside the window. */
12794 int accu
= 0; /* Usage accumulation. */
12795 struct nds32_fag
*best
; /* Best fag. */
12796 int baccu
= 0; /* Best accumulation. */
12798 /* Use first fag for initial, and find the last fag in the window.
12800 In each iteration, we could simply subtract previous fag
12801 and accumulate following fags which are inside the window,
12802 untill we each the end. */
12804 if (head
->next
== NULL
)
12810 /* Initialize base. */
12814 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12816 accu
+= last
->count
;
12820 /* Record the best base in each iteration. */
12823 accu
-= base
->count
;
12825 /* Account fags in window. */
12826 for (/* Nothing. */;
12827 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12829 accu
+= last
->count
;
12831 /* A better fp-base? */
12844 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12845 so we can convert it fo fp-relative access later.
12846 `best_fag' is the best fp-base. Only those inside the window
12847 of best_fag is applied the flag. */
12850 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12851 asection
*sec
, struct nds32_fag
*best_fag
,
12852 Elf_Internal_Rela
*internal_relocs
,
12853 Elf_Internal_Rela
*irelend
)
12855 struct nds32_fag
*ifag
;
12856 bfd_vma best_fpbase
, gp
;
12859 output_bfd
= sec
->output_section
->owner
;
12860 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12861 best_fpbase
= best_fag
->addr
;
12863 if (best_fpbase
> gp
+ sdata_range
[1][1]
12864 || best_fpbase
< gp
- sdata_range
[1][0])
12867 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12868 so we know they can be converted to lwi37.fp. */
12869 for (ifag
= best_fag
;
12870 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12874 for (i
= 0; i
< ifag
->count
; i
++)
12876 Elf_Internal_Rela
*insn16_rel
;
12877 Elf_Internal_Rela
*fag_rel
;
12879 fag_rel
= ifag
->relas
[i
];
12881 /* Only if this is within the WINDOWS, FP7U2_FLAG
12884 insn16_rel
= find_relocs_at_address
12885 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12887 if (insn16_rel
!= irelend
)
12888 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12894 /* Reset INSN16 to clean fp as gp. */
12897 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12898 Elf_Internal_Rela
*internal_relocs
,
12899 Elf_Internal_Rela
*irelend
)
12901 struct nds32_fag
*ifag
;
12903 Elf_Internal_Rela
*insn16_rel
;
12904 Elf_Internal_Rela
*fag_rel
;
12906 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12908 for (i
= 0; i
< ifag
->count
; i
++)
12910 fag_rel
= ifag
->relas
[i
];
12912 /* Restore the INSN16 relocation. */
12913 insn16_rel
= find_relocs_at_address
12914 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12916 if (insn16_rel
!= irelend
)
12917 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12922 /* This is the main function of fp-as-gp optimization.
12923 It should be called by relax_section. */
12926 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12927 bfd
*abfd
, asection
*sec
,
12928 Elf_Internal_Rela
*internal_relocs
,
12929 Elf_Internal_Rela
*irelend
,
12930 Elf_Internal_Sym
*isymbuf
)
12932 Elf_Internal_Rela
*begin_rel
= NULL
;
12933 Elf_Internal_Rela
*irel
;
12934 struct nds32_fag fag_head
;
12935 Elf_Internal_Shdr
*symtab_hdr
;
12936 bfd_byte
*contents
;
12937 bfd_boolean ifc_inside
= FALSE
;
12939 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12941 /* Per-function fp-base selection.
12942 1. Create a list for all the gp-relative access.
12943 2. Base on those gp-relative address,
12944 find a fp-base which can cover most access.
12945 3. Use the fp-base for fp-as-gp relaxation.
12947 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12949 1. delete the `la $fp, _FP_BASE_' instruction and
12950 2. not convert lwi.gp to lwi37.fp.
12952 To delete the _FP_BASE_ instruction, we simply apply
12953 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12955 To suppress the conversion, we simply NOT to apply
12956 R_NDS32_INSN16_FP7U2_FLAG flag. */
12958 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12960 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12961 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12964 /* Check whether it is worth for fp-as-gp optimization,
12965 i.e., at least 3 gp-load.
12967 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12968 apply this optimization. */
12970 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12972 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12973 One we enter the begin of the region, we track all the LW/ST
12974 instructions, so when we leave the region, we try to find
12975 the best fp-base address for those LW/ST instructions. */
12977 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12978 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12980 /* Begin of the region. */
12982 /* xgettext:c-format */
12983 _bfd_error_handler (_("%pB: nested OMIT_FP in %pA"), abfd
, sec
);
12986 nds32_fag_init (&fag_head
);
12987 ifc_inside
= FALSE
;
12989 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12990 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12993 struct nds32_fag
*best_fag
, *tmp_fag
;
12996 /* End of the region.
12997 Check whether it is worth to do fp-as-gp. */
12999 if (begin_rel
== NULL
)
13001 /* xgettext:c-format */
13002 _bfd_error_handler (_("%pB: unmatched OMIT_FP in %pA"),
13007 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
13009 /* Clean FP7U2_FLAG because they may set ever. */
13010 tmp_fag
= fag_head
.next
;
13011 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
13013 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
13014 if (accu
< FAG_THRESHOLD
13015 || !nds32_fag_mark_relax (link_info
, sec
, best_fag
,
13016 internal_relocs
, irelend
))
13018 /* Not worth to do fp-as-gp. */
13019 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
13020 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
13021 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
13022 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
13023 nds32_fag_free_list (&fag_head
);
13028 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
13029 so we use it to record the distance to the reloction of best
13031 dist
= best_fag
->relas
[0] - begin_rel
;
13032 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
13033 /* Use high 16 bits of addend to record the _FP_BASE_ matched
13034 relocation. And get the base value when relocating. */
13035 begin_rel
->r_addend
&= (0x1 << 16) - 1;
13036 begin_rel
->r_addend
|= dist
<< 16;
13038 nds32_fag_free_list (&fag_head
);
13042 if (begin_rel
== NULL
|| ifc_inside
)
13043 /* Skip if we are not in the region of fp-as-gp. */
13046 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
13047 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
13052 /* A gp-relative access is found. Insert it to the fag-list. */
13054 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
13055 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13056 if (!N32_IS_RT3 (insn
))
13059 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
13060 nds32_fag_insert (&fag_head
, addr
, irel
);
13062 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
13066 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
13067 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13069 /* Suppress fp as gp when encounter ifc. */
13077 /* Remove unused `la $fp, _FD_BASE_' instruction. */
13080 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
13081 Elf_Internal_Rela
*internal_relocs
,
13082 Elf_Internal_Rela
*irelend
)
13084 Elf_Internal_Rela
*irel
;
13085 Elf_Internal_Shdr
*symtab_hdr
;
13086 bfd_byte
*contents
= NULL
;
13087 nds32_elf_blank_t
*relax_blank_list
= NULL
;
13088 bfd_boolean result
= TRUE
;
13089 bfd_boolean unused_region
= FALSE
;
13092 NOTE: Disable fp-as-gp if we encounter ifcall relocations:
13093 R_NDS32_17IFC_PCREL_RELA
13094 R_NDS32_10IFCU_PCREL_RELA. */
13096 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
13097 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
13099 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13101 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
13102 we marked to in previous pass.
13103 DO NOT scan relocations again, since we've alreadly decided it
13104 and set the flag. */
13105 const char *syname
;
13109 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
13110 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
13111 unused_region
= TRUE
;
13112 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
13113 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
13114 unused_region
= FALSE
;
13116 /* We're not in the region. */
13117 if (!unused_region
)
13120 /* _FP_BASE_ must be a GLOBAL symbol. */
13121 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
13122 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
13125 /* The symbol name must be _FP_BASE_. */
13126 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
13127 if (strcmp (syname
, FP_BASE_NAME
) != 0)
13130 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
13132 /* addi.gp $fp, -256 */
13133 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13134 if (insn
!= INSN_ADDIGP_TO_FP
)
13137 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
13139 /* addi $fp, $gp, -256 */
13140 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13141 if (insn
!= INSN_ADDI_GP_TO_FP
)
13144 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
13146 /* movi $fp, FP_BASE */
13147 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13148 if (insn
!= INSN_MOVI_TO_FP
)
13154 /* We got here because a FP_BASE instruction is found. */
13155 if (!insert_nds32_elf_blank_recalc_total
13156 (&relax_blank_list
, irel
->r_offset
, 4))
13161 if (relax_blank_list
)
13163 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
13164 relax_blank_list
= NULL
;
13173 /* This is a version of bfd_generic_get_relocated_section_contents.
13174 We need this variety because relaxation will modify the dwarf
13175 infomation. When there is undefined symbol reference error mesage,
13176 linker need to dump line number where the symbol be used. However
13177 the address is be relaxed, it can not get the original dwarf contents.
13178 The variety only modify function call for reading in the section. */
13181 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
13182 struct bfd_link_info
*link_info
,
13183 struct bfd_link_order
*link_order
,
13185 bfd_boolean relocatable
,
13188 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
13189 asection
*input_section
= link_order
->u
.indirect
.section
;
13191 arelent
**reloc_vector
;
13194 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
13195 if (reloc_size
< 0)
13198 /* Read in the section. */
13199 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13202 if (reloc_size
== 0)
13205 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13206 if (reloc_vector
== NULL
)
13209 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13210 reloc_vector
, symbols
);
13211 if (reloc_count
< 0)
13214 if (reloc_count
> 0)
13217 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13219 char *error_message
= NULL
;
13221 bfd_reloc_status_type r
;
13223 symbol
= *(*parent
)->sym_ptr_ptr
;
13224 if (symbol
->section
&& discarded_section (symbol
->section
))
13227 static reloc_howto_type none_howto
13228 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13229 "unused", FALSE
, 0, 0, FALSE
);
13231 off
= (*parent
)->address
* OCTETS_PER_BYTE (input_bfd
,
13233 _bfd_clear_contents ((*parent
)->howto
, input_bfd
,
13234 input_section
, data
, off
);
13235 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13236 (*parent
)->addend
= 0;
13237 (*parent
)->howto
= &none_howto
;
13241 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13243 relocatable
? abfd
: NULL
,
13248 asection
*os
= input_section
->output_section
;
13250 /* A partial link, so keep the relocs. */
13251 os
->orelocation
[os
->reloc_count
] = *parent
;
13255 if (r
!= bfd_reloc_ok
)
13259 case bfd_reloc_undefined
:
13260 (*link_info
->callbacks
->undefined_symbol
)
13261 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13262 input_bfd
, input_section
, (*parent
)->address
, TRUE
);
13264 case bfd_reloc_dangerous
:
13265 BFD_ASSERT (error_message
!= NULL
);
13266 (*link_info
->callbacks
->reloc_dangerous
)
13267 (link_info
, error_message
,
13268 input_bfd
, input_section
, (*parent
)->address
);
13270 case bfd_reloc_overflow
:
13271 (*link_info
->callbacks
->reloc_overflow
)
13273 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13274 (*parent
)->howto
->name
, (*parent
)->addend
,
13275 input_bfd
, input_section
, (*parent
)->address
);
13277 case bfd_reloc_outofrange
:
13279 This error can result when processing some partially
13280 complete binaries. Do not abort, but issue an error
13281 message instead. */
13282 link_info
->callbacks
->einfo
13283 /* xgettext:c-format */
13284 (_("%X%P: %pB(%pA): relocation \"%pR\" goes out of range\n"),
13285 abfd
, input_section
, * parent
);
13296 free (reloc_vector
);
13300 free (reloc_vector
);
13304 /* Check target symbol. */
13307 nds32_elf_is_target_special_symbol (bfd
*abfd ATTRIBUTE_UNUSED
, asymbol
*sym
)
13309 if (!sym
|| !sym
->name
|| sym
->name
[0] != '$')
13314 /* nds32 find maybe function sym. Ignore target special symbol
13315 first, and then go the general function. */
13317 static bfd_size_type
13318 nds32_elf_maybe_function_sym (const asymbol
*sym
, asection
*sec
,
13321 if (nds32_elf_is_target_special_symbol (NULL
, (asymbol
*) sym
))
13324 return _bfd_elf_maybe_function_sym (sym
, sec
, code_off
);
13328 /* Do TLS model conversion. */
13330 typedef struct relax_group_list_t
13332 Elf_Internal_Rela
*relo
;
13333 struct relax_group_list_t
*next
;
13334 struct relax_group_list_t
*next_sibling
;
13336 } relax_group_list_t
;
13339 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
);
13342 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
);
13345 dump_chain (relax_group_list_t
*pHead
);
13348 list_insert (relax_group_list_t
*pHead
, Elf_Internal_Rela
*pElem
)
13350 relax_group_list_t
*pNext
= pHead
;
13353 while (pNext
->next
)
13355 if (pNext
->next
->id
> (int) pElem
->r_addend
)
13358 pNext
= pNext
->next
;
13362 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13366 relax_group_list_t
*tmp
= pNext
->next
;
13367 pNext
->next
= pNew
;
13369 pNew
->id
= pElem
->r_addend
;
13370 pNew
->relo
= pElem
;
13372 pNew
->next_sibling
= NULL
;
13378 list_insert_sibling (relax_group_list_t
*pNode
, Elf_Internal_Rela
*pElem
)
13380 relax_group_list_t
*pNext
= pNode
;
13383 while (pNext
->next_sibling
)
13385 pNext
= pNext
->next_sibling
;
13389 relax_group_list_t
*pNew
= bfd_malloc (sizeof (relax_group_list_t
));
13393 relax_group_list_t
*tmp
= pNext
->next_sibling
;
13394 pNext
->next_sibling
= pNew
;
13397 pNew
->relo
= pElem
;
13399 pNew
->next_sibling
= tmp
;
13405 dump_chain (relax_group_list_t
*pHead
)
13407 relax_group_list_t
*pNext
= pHead
->next
;
13410 printf("group %d @ 0x%08x", pNext
->id
, (unsigned)pNext
->relo
->r_offset
);
13411 relax_group_list_t
*pNextSib
= pNext
->next_sibling
;
13414 printf(", %d", (unsigned) ELF32_R_TYPE (pNextSib
->relo
->r_info
));
13415 pNextSib
= pNextSib
->next_sibling
;
13417 pNext
= pNext
->next
;
13422 /* Check R_NDS32_RELAX_GROUP of each section.
13423 There might be multiple sections in one object file. */
13426 elf32_nds32_check_relax_group (bfd
*abfd
, asection
*asec
)
13428 elf32_nds32_relax_group_t
*relax_group_ptr
=
13429 elf32_nds32_relax_group_ptr (abfd
);
13431 int min_id
= relax_group_ptr
->min_id
;
13432 int max_id
= relax_group_ptr
->max_id
;
13434 Elf_Internal_Rela
*rel
;
13435 Elf_Internal_Rela
*relend
;
13436 Elf_Internal_Rela
*relocs
;
13437 enum elf_nds32_reloc_type rtype
;
13441 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13442 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13443 TRUE
/* keep_memory */);
13444 if (relocs
== NULL
)
13447 /* Check R_NDS32_RELAX_GROUP. */
13448 relend
= relocs
+ asec
->reloc_count
;
13449 for (rel
= relocs
; rel
< relend
; rel
++)
13452 rtype
= ELF32_R_TYPE (rel
->r_info
);
13453 if (rtype
!= R_NDS32_RELAX_GROUP
)
13456 id
= rel
->r_addend
;
13459 else if (id
> max_id
)
13465 if (elf_section_data (asec
)->relocs
!= relocs
)
13468 if ((min_id
!= relax_group_ptr
->min_id
)
13469 || (max_id
!= relax_group_ptr
->max_id
))
13471 relax_group_ptr
->count
= max_id
- min_id
+ 1;
13472 BFD_ASSERT(min_id
<= relax_group_ptr
->min_id
);
13473 relax_group_ptr
->min_id
= min_id
;
13474 BFD_ASSERT(max_id
>= relax_group_ptr
->max_id
);
13475 relax_group_ptr
->max_id
= max_id
;
13478 return relax_group_ptr
->count
;
13481 /* Reorder RELAX_GROUP ID when command line option '-r' is applied. */
13482 struct section_id_list_t
*relax_group_section_id_list
= NULL
;
13484 struct section_id_list_t
*
13485 elf32_nds32_lookup_section_id (int id
, struct section_id_list_t
**lst_ptr
)
13487 struct section_id_list_t
*result
= NULL
;
13488 struct section_id_list_t
*lst
= *lst_ptr
;
13492 result
= (struct section_id_list_t
*) calloc
13493 (1, sizeof (struct section_id_list_t
));
13494 BFD_ASSERT (result
); /* Feed me. */
13500 struct section_id_list_t
*cur
= lst
;
13501 struct section_id_list_t
*prv
= NULL
;
13502 struct section_id_list_t
*sec
= NULL
;
13515 cur
= NULL
; /* To insert after prv. */
13516 sec
= cur
; /* In case prv == NULL. */
13524 /* Insert after prv. */
13525 result
= (struct section_id_list_t
*) calloc
13526 (1, sizeof (struct section_id_list_t
));
13527 BFD_ASSERT (result
); /* Feed me. */
13531 result
->next
= prv
->next
;
13532 prv
->next
= result
;
13537 result
->next
= sec
;
13546 elf32_nds32_unify_relax_group (bfd
*abfd
, asection
*asec
)
13548 static int next_relax_group_bias
= 0;
13550 elf32_nds32_relax_group_t
*relax_group_ptr
=
13551 elf32_nds32_relax_group_ptr (abfd
);
13553 bfd_boolean result
= TRUE
;
13554 Elf_Internal_Rela
*rel
;
13555 Elf_Internal_Rela
*relend
;
13556 Elf_Internal_Rela
*relocs
= NULL
;
13557 enum elf_nds32_reloc_type rtype
;
13558 struct section_id_list_t
*node
= NULL
;
13563 if (0 == relax_group_ptr
->count
)
13566 /* Check if this section has been handled. */
13567 node
= elf32_nds32_lookup_section_id (asec
->id
, &relax_group_section_id_list
);
13569 break; /* Hit, the section id has handled. */
13571 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13572 relocs
= _bfd_elf_link_read_relocs (abfd
, asec
, NULL
, NULL
,
13573 TRUE
/* keep_memory */);
13574 if (relocs
== NULL
)
13576 BFD_ASSERT (0); /* feed me */
13580 /* Allocate group id bias for this bfd! */
13581 if (0 == relax_group_ptr
->init
)
13583 relax_group_ptr
->bias
= next_relax_group_bias
;
13584 next_relax_group_bias
+= relax_group_ptr
->count
;
13585 relax_group_ptr
->init
= 1;
13588 /* Reorder relax group groups. */
13589 relend
= relocs
+ asec
->reloc_count
;
13590 for (rel
= relocs
; rel
< relend
; rel
++)
13592 rtype
= ELF32_R_TYPE(rel
->r_info
);
13593 if (rtype
!= R_NDS32_RELAX_GROUP
)
13597 rel
->r_addend
+= relax_group_ptr
->bias
;
13598 /* Debugging count. */
13604 if (elf_section_data (asec
)->relocs
!= relocs
)
13611 nds32_elf_unify_tls_model (bfd
*inbfd
, asection
*insec
, bfd_byte
*incontents
,
13612 struct bfd_link_info
*lnkinfo
)
13614 bfd_boolean result
= TRUE
;
13615 Elf_Internal_Rela
*irel
;
13616 Elf_Internal_Rela
*irelend
;
13617 Elf_Internal_Rela
*internal_relocs
;
13618 unsigned long r_symndx
;
13619 enum elf_nds32_reloc_type r_type
;
13621 Elf_Internal_Sym
*local_syms
= NULL
;
13622 bfd_byte
*contents
= NULL
;
13624 relax_group_list_t chain
= { .id
= -1, .next
= NULL
, .next_sibling
= NULL
};
13626 Elf_Internal_Shdr
*symtab_hdr
= &elf_tdata (inbfd
)->symtab_hdr
;
13627 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
13628 sym_hashes
= elf_sym_hashes (inbfd
);
13630 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
13631 if (!elf_bad_symtab (inbfd
))
13632 sym_hashes_end
-= symtab_hdr
->sh_info
;
13634 /* Reorder RELAX_GROUP when command line option '-r' is applied. */
13635 if (bfd_link_relocatable (lnkinfo
))
13637 elf32_nds32_unify_relax_group (inbfd
, insec
);
13641 /* Relocations MUST be kept in memory, because relaxation adjust them. */
13642 internal_relocs
= _bfd_elf_link_read_relocs (inbfd
, insec
, NULL
, NULL
,
13643 TRUE
/* keep_memory */);
13644 if (internal_relocs
== NULL
)
13647 irelend
= internal_relocs
+ insec
->reloc_count
;
13648 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
13649 irelend
, R_NDS32_RELAX_ENTRY
);
13650 if (irel
== irelend
)
13653 /* Chain/remove groups. */
13654 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13656 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13657 r_type
= ELF32_R_TYPE (irel
->r_info
);
13658 if (r_type
!= R_NDS32_RELAX_GROUP
)
13662 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_NONE
);
13663 /* Chain it now. */
13664 if (!list_insert (&chain
, irel
))
13668 /* Collect group relocations. */
13669 /* Presume relocations are sorted. */
13670 relax_group_list_t
*pNext
= chain
.next
;
13673 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
13675 if (irel
->r_offset
== pNext
->relo
->r_offset
)
13677 /* Ignore Non-TLS relocation types. */
13678 r_type
= ELF32_R_TYPE (irel
->r_info
);
13679 if ((R_NDS32_TLS_LE_HI20
> r_type
)
13680 || (R_NDS32_RELAX_ENTRY
== r_type
))
13683 if (!list_insert_sibling (pNext
, irel
))
13686 else if (irel
->r_offset
> pNext
->relo
->r_offset
)
13688 pNext
= pNext
->next
;
13692 bfd_vma current_offset
= pNext
->relo
->r_offset
;
13693 if (irel
->r_offset
> current_offset
)
13694 irel
= internal_relocs
; /* restart from head */
13696 --irel
; /* Check current irel again. */
13701 /* This shouldn't be reached. */
13705 pNext
= pNext
->next
;
13708 #ifdef DUBUG_VERBOSE
13709 dump_chain(&chain
);
13712 /* Get symbol table and section content. */
13714 contents
= incontents
;
13715 else if (!nds32_get_section_contents (inbfd
, insec
, &contents
, TRUE
)
13716 || !nds32_get_local_syms (inbfd
, insec
, &local_syms
))
13719 char *local_got_tls_type
= elf32_nds32_local_got_tls_type (inbfd
);
13721 /* Convert TLS model each group if necessary. */
13722 pNext
= chain
.next
;
13724 int cur_grp_id
= -1;
13727 enum elf_nds32_tls_type tls_type
, org_tls_type
, eff_tls_type
;
13729 tls_type
= org_tls_type
= eff_tls_type
= 0;
13733 relax_group_list_t
*pNextSig
= pNext
->next_sibling
;
13736 struct elf_link_hash_entry
*h
= NULL
;
13738 irel
= pNextSig
->relo
;
13739 r_symndx
= ELF32_R_SYM(irel
->r_info
);
13740 r_type
= ELF32_R_TYPE(irel
->r_info
);
13742 if (pNext
->id
!= cur_grp_id
)
13744 cur_grp_id
= pNext
->id
;
13745 org_tls_type
= get_tls_type (r_type
, NULL
);
13746 if (r_symndx
>= symtab_hdr
->sh_info
)
13748 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13749 while (h
->root
.type
== bfd_link_hash_indirect
13750 || h
->root
.type
== bfd_link_hash_warning
)
13751 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
13752 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
13756 tls_type
= local_got_tls_type
13757 ? local_got_tls_type
[r_symndx
]
13761 eff_tls_type
= 1 << (fls (tls_type
) - 1);
13762 sethi_rt
= N32_RT5(bfd_getb32 (contents
+ irel
->r_offset
));
13765 if (eff_tls_type
!= org_tls_type
)
13767 switch (org_tls_type
)
13769 /* DESC to IEGP/IE/LE. */
13771 switch (eff_tls_type
)
13776 case R_NDS32_TLS_DESC_HI20
:
13777 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13778 R_NDS32_TLS_IE_HI20
);
13780 case R_NDS32_TLS_DESC_LO12
:
13781 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13782 R_NDS32_TLS_IE_LO12
);
13784 case R_NDS32_TLS_DESC_ADD
:
13786 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
);
13791 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13794 case R_NDS32_TLS_DESC_FUNC
:
13795 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13796 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13797 R_NDS32_RELAX_REMOVE
);
13799 case R_NDS32_TLS_DESC_CALL
:
13801 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13803 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13805 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13808 case R_NDS32_LOADSTORE
:
13810 case R_NDS32_PTR_RESOLVED
:
13812 case R_NDS32_LABEL
:
13822 case R_NDS32_TLS_DESC_HI20
:
13823 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13824 R_NDS32_TLS_IEGP_HI20
);
13826 case R_NDS32_TLS_DESC_LO12
:
13827 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13828 R_NDS32_TLS_IEGP_LO12
);
13830 case R_NDS32_TLS_DESC_ADD
:
13832 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13833 add_rt
= N32_RT5 (insn
);
13834 insn
= N32_MEM(LW
, add_rt
, sethi_rt
, REG_GP
, 0);
13835 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13837 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13840 case R_NDS32_TLS_DESC_FUNC
:
13841 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13842 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13843 R_NDS32_RELAX_REMOVE
);
13845 case R_NDS32_TLS_DESC_CALL
:
13847 uint32_t insn
= N32_ALU1(ADD
, REG_R0
, add_rt
,
13849 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13851 irel
->r_info
= ELF32_R_INFO(r_symndx
, R_NDS32_NONE
);
13854 case R_NDS32_LOADSTORE
:
13856 case R_NDS32_PTR_RESOLVED
:
13858 case R_NDS32_LABEL
:
13868 case R_NDS32_TLS_DESC_HI20
:
13869 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13871 case R_NDS32_TLS_DESC_LO12
:
13872 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13874 case R_NDS32_TLS_DESC_ADD
:
13876 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13878 add_rt
= N32_RT5 (insn
);
13879 insn
= N32_ALU1 (ADD
, REG_R0
, sethi_rt
, REG_TP
);
13880 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13882 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_ADD
);
13885 case R_NDS32_TLS_DESC_FUNC
:
13886 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13887 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13889 case R_NDS32_TLS_DESC_CALL
:
13890 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13891 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13893 case R_NDS32_LOADSTORE
:
13895 case R_NDS32_PTR_RESOLVED
:
13897 case R_NDS32_LABEL
:
13908 /* IEGP to IE/LE. */
13910 switch (eff_tls_type
)
13915 case R_NDS32_TLS_IEGP_HI20
:
13916 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13917 R_NDS32_TLS_IE_HI20
);
13919 case R_NDS32_TLS_IEGP_LO12
:
13920 irel
->r_info
= ELF32_R_INFO(r_symndx
,
13921 R_NDS32_TLS_IE_LO12
);
13923 case R_NDS32_PTR_RESOLVED
:
13925 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13927 add_rt
= N32_RT5 (insn
);
13928 insn
= N32_TYPE2 (LWI
, add_rt
, sethi_rt
, 0);
13929 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13932 case R_NDS32_TLS_IEGP_LW
:
13934 case R_NDS32_LOADSTORE
:
13937 case R_NDS32_LABEL
:
13947 case R_NDS32_TLS_IEGP_HI20
:
13948 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13950 case R_NDS32_TLS_IEGP_LO12
:
13951 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13953 case R_NDS32_TLS_IEGP_LW
:
13954 bfd_putb32 (INSN_NOP
, contents
+ irel
->r_offset
);
13955 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_RELAX_REMOVE
);
13957 case R_NDS32_LOADSTORE
:
13960 case R_NDS32_LABEL
:
13961 case R_NDS32_PTR_RESOLVED
:
13974 switch (eff_tls_type
)
13979 case R_NDS32_TLS_IE_HI20
:
13980 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_HI20
);
13982 case R_NDS32_TLS_IE_LO12S2
:
13984 uint32_t insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13986 add_rt
= N32_RT5 (insn
);
13987 insn
= N32_TYPE2 (ORI
, add_rt
, sethi_rt
, 0);
13988 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
13990 irel
->r_info
= ELF32_R_INFO (r_symndx
, R_NDS32_TLS_LE_LO12
);
13993 case R_NDS32_LOADSTORE
:
13996 case R_NDS32_LABEL
:
14011 pNextSig
= pNextSig
->next_sibling
;
14015 pNext
= pNext
->next
;
14019 if (pNext
->id
!= cur_grp_id
)
14021 pNext
= pNext
->next
;
14030 if (elf_section_data (insec
)->relocs
!= internal_relocs
)
14031 free (internal_relocs
);
14033 if (elf_section_data (insec
)->this_hdr
.contents
!= contents
)
14036 if (symtab_hdr
->contents
!= (bfd_byte
*) local_syms
)
14041 pNext
= chain
.next
;
14042 relax_group_list_t
*pDel
;
14046 pNext
= pNext
->next
;
14058 /* End TLS model conversion. */
14060 #define ELF_ARCH bfd_arch_nds32
14061 #define ELF_MACHINE_CODE EM_NDS32
14062 #define ELF_MAXPAGESIZE 0x1000
14063 #define ELF_TARGET_ID NDS32_ELF_DATA
14065 #define TARGET_BIG_SYM nds32_elf32_be_vec
14066 #define TARGET_BIG_NAME "elf32-nds32be"
14067 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
14068 #define TARGET_LITTLE_NAME "elf32-nds32le"
14070 #define elf_info_to_howto nds32_info_to_howto
14071 #define elf_info_to_howto_rel nds32_info_to_howto_rel
14073 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
14074 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
14075 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
14076 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
14077 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
14079 #define bfd_elf32_mkobject nds32_elf_mkobject
14080 #define elf_backend_action_discarded nds32_elf_action_discarded
14081 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
14082 #define elf_backend_check_relocs nds32_elf_check_relocs
14083 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
14084 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
14085 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
14086 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
14087 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
14088 #define elf_backend_relocate_section nds32_elf_relocate_section
14089 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
14090 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
14091 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
14092 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
14093 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
14094 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
14095 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
14096 #define elf_backend_object_p nds32_elf_object_p
14097 #define elf_backend_final_write_processing nds32_elf_final_write_processing
14098 #define elf_backend_special_sections nds32_elf_special_sections
14099 #define elf_backend_section_flags nds32_elf_section_flags
14100 #define bfd_elf32_bfd_get_relocated_section_contents \
14101 nds32_elf_get_relocated_section_contents
14102 #define bfd_elf32_bfd_is_target_special_symbol nds32_elf_is_target_special_symbol
14103 #define elf_backend_maybe_function_sym nds32_elf_maybe_function_sym
14105 #define elf_backend_can_gc_sections 1
14106 #define elf_backend_can_refcount 1
14107 #define elf_backend_want_got_plt 1
14108 #define elf_backend_plt_readonly 1
14109 #define elf_backend_want_plt_sym 0
14110 #define elf_backend_got_header_size 12
14111 #define elf_backend_may_use_rel_p 1
14112 #define elf_backend_default_use_rela_p 1
14113 #define elf_backend_may_use_rela_p 1
14114 #define elf_backend_dtrel_excludes_plt 0
14116 #include "elf32-target.h"
14118 #undef ELF_MAXPAGESIZE
14119 #define ELF_MAXPAGESIZE 0x2000
14121 #undef TARGET_BIG_SYM
14122 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
14123 #undef TARGET_BIG_NAME
14124 #define TARGET_BIG_NAME "elf32-nds32be-linux"
14125 #undef TARGET_LITTLE_SYM
14126 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
14127 #undef TARGET_LITTLE_NAME
14128 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
14130 #define elf32_bed elf32_nds32_lin_bed
14132 #include "elf32-target.h"