1 /* NDS32-specific support for 32-bit ELF.
2 Copyright (C) 2012-2016 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
25 #include "bfd_stdint.h"
29 #include "libiberty.h"
30 #include "bfd_stdint.h"
31 #include "elf/nds32.h"
32 #include "opcode/nds32.h"
33 #include "elf32-nds32.h"
34 #include "opcode/cgen.h"
35 #include "../opcodes/nds32-opc.h"
37 /* Relocation HOWTO functions. */
38 static bfd_reloc_status_type nds32_elf_ignore_reloc
39 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
40 static bfd_reloc_status_type nds32_elf_9_pcrel_reloc
41 (bfd
*, arelent
*, asymbol
*, void *, asection
*, bfd
*, char **);
42 static bfd_reloc_status_type nds32_elf_hi20_reloc
43 (bfd
*, arelent
*, asymbol
*, void *,
44 asection
*, bfd
*, char **);
45 static bfd_reloc_status_type nds32_elf_lo12_reloc
46 (bfd
*, arelent
*, asymbol
*, void *,
47 asection
*, bfd
*, char **);
48 static bfd_reloc_status_type nds32_elf_generic_reloc
49 (bfd
*, arelent
*, asymbol
*, void *,
50 asection
*, bfd
*, char **);
51 static bfd_reloc_status_type nds32_elf_sda15_reloc
52 (bfd
*, arelent
*, asymbol
*, void *,
53 asection
*, bfd
*, char **);
55 /* Helper functions for HOWTO. */
56 static bfd_reloc_status_type nds32_elf_do_9_pcrel_reloc
57 (bfd
*, reloc_howto_type
*, asection
*, bfd_byte
*, bfd_vma
,
58 asection
*, bfd_vma
, bfd_vma
);
59 static void nds32_elf_relocate_hi20
60 (bfd
*, int, Elf_Internal_Rela
*, Elf_Internal_Rela
*, bfd_byte
*, bfd_vma
);
61 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_table_lookup
62 (enum elf_nds32_reloc_type
);
63 static reloc_howto_type
*bfd_elf32_bfd_reloc_type_lookup
64 (bfd
*, bfd_reloc_code_real_type
);
67 static void nds32_info_to_howto_rel
68 (bfd
*, arelent
*, Elf_Internal_Rela
*dst
);
69 static void nds32_info_to_howto
70 (bfd
*, arelent
*, Elf_Internal_Rela
*dst
);
71 static bfd_boolean nds32_elf_add_symbol_hook
72 (bfd
*, struct bfd_link_info
*, Elf_Internal_Sym
*, const char **,
73 flagword
*, asection
**, bfd_vma
*);
74 static bfd_boolean nds32_elf_relocate_section
75 (bfd
*, struct bfd_link_info
*, bfd
*, asection
*, bfd_byte
*,
76 Elf_Internal_Rela
*, Elf_Internal_Sym
*, asection
**);
77 static bfd_boolean
nds32_elf_object_p (bfd
*);
78 static void nds32_elf_final_write_processing (bfd
*, bfd_boolean
);
79 static bfd_boolean
nds32_elf_set_private_flags (bfd
*, flagword
);
80 static bfd_boolean
nds32_elf_merge_private_bfd_data (bfd
*, bfd
*);
81 static bfd_boolean
nds32_elf_print_private_bfd_data (bfd
*, void *);
82 static bfd_boolean nds32_elf_gc_sweep_hook
83 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
84 static bfd_boolean nds32_elf_check_relocs
85 (bfd
*, struct bfd_link_info
*, asection
*, const Elf_Internal_Rela
*);
86 static asection
*nds32_elf_gc_mark_hook
87 (asection
*, struct bfd_link_info
*, Elf_Internal_Rela
*,
88 struct elf_link_hash_entry
*, Elf_Internal_Sym
*);
89 static bfd_boolean nds32_elf_adjust_dynamic_symbol
90 (struct bfd_link_info
*, struct elf_link_hash_entry
*);
91 static bfd_boolean nds32_elf_size_dynamic_sections
92 (bfd
*, struct bfd_link_info
*);
93 static bfd_boolean nds32_elf_create_dynamic_sections
94 (bfd
*, struct bfd_link_info
*);
95 static bfd_boolean nds32_elf_finish_dynamic_sections
96 (bfd
*, struct bfd_link_info
*info
);
97 static bfd_boolean nds32_elf_finish_dynamic_symbol
98 (bfd
*, struct bfd_link_info
*, struct elf_link_hash_entry
*,
100 static bfd_boolean
nds32_elf_mkobject (bfd
*);
102 /* Nds32 helper functions. */
103 static bfd_reloc_status_type nds32_elf_final_sda_base
104 (bfd
*, struct bfd_link_info
*, bfd_vma
*, bfd_boolean
);
105 static bfd_boolean
allocate_dynrelocs (struct elf_link_hash_entry
*, void *);
106 static bfd_boolean
readonly_dynrelocs (struct elf_link_hash_entry
*, void *);
107 static Elf_Internal_Rela
*find_relocs_at_address
108 (Elf_Internal_Rela
*, Elf_Internal_Rela
*,
109 Elf_Internal_Rela
*, enum elf_nds32_reloc_type
);
110 static bfd_vma calculate_memory_address
111 (bfd
*, Elf_Internal_Rela
*, Elf_Internal_Sym
*, Elf_Internal_Shdr
*);
112 static int nds32_get_section_contents (bfd
*, asection
*,
113 bfd_byte
**, bfd_boolean
);
114 static bfd_boolean nds32_elf_ex9_build_hash_table
115 (bfd
*, asection
*, struct bfd_link_info
*);
116 static bfd_boolean
nds32_elf_ex9_itb_base (struct bfd_link_info
*);
117 static void nds32_elf_ex9_import_table (struct bfd_link_info
*);
118 static void nds32_elf_ex9_finish (struct bfd_link_info
*);
119 static void nds32_elf_ex9_reloc_jmp (struct bfd_link_info
*);
120 static void nds32_elf_get_insn_with_reg
121 (Elf_Internal_Rela
*, uint32_t, uint32_t *);
122 static int nds32_get_local_syms (bfd
*, asection
*ATTRIBUTE_UNUSED
,
123 Elf_Internal_Sym
**);
124 static bfd_boolean nds32_elf_ex9_replace_instruction
125 (struct bfd_link_info
*, bfd
*, asection
*);
126 static bfd_boolean
nds32_elf_ifc_calc (struct bfd_link_info
*, bfd
*,
128 static bfd_boolean
nds32_elf_ifc_finish (struct bfd_link_info
*);
129 static bfd_boolean
nds32_elf_ifc_replace (struct bfd_link_info
*);
130 static bfd_boolean
nds32_elf_ifc_reloc (void);
131 static bfd_boolean nds32_relax_fp_as_gp
132 (struct bfd_link_info
*link_info
, bfd
*abfd
, asection
*sec
,
133 Elf_Internal_Rela
*internal_relocs
, Elf_Internal_Rela
*irelend
,
134 Elf_Internal_Sym
*isymbuf
);
135 static bfd_boolean nds32_fag_remove_unused_fpbase
136 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*internal_relocs
,
137 Elf_Internal_Rela
*irelend
);
139 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
140 struct bfd_link_info
*link_info
,
141 struct bfd_link_order
*link_order
,
143 bfd_boolean relocatable
,
148 MACH_V1
= bfd_mach_n1h
,
149 MACH_V2
= bfd_mach_n1h_v2
,
150 MACH_V3
= bfd_mach_n1h_v3
,
151 MACH_V3M
= bfd_mach_n1h_v3m
154 #define MIN(a, b) ((a) > (b) ? (b) : (a))
155 #define MAX(a, b) ((a) > (b) ? (a) : (b))
157 /* The name of the dynamic interpreter. This is put in the .interp
159 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
161 /* The nop opcode we use. */
162 #define NDS32_NOP32 0x40000009
163 #define NDS32_NOP16 0x9200
165 /* The size in bytes of an entry in the procedure linkage table. */
166 #define PLT_ENTRY_SIZE 24
167 #define PLT_HEADER_SIZE 24
169 /* The first entry in a procedure linkage table are reserved,
170 and the initial contents are unimportant (we zero them out).
171 Subsequent entries look like this. */
172 #define PLT0_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(.got+4) */
173 #define PLT0_ENTRY_WORD1 0x58f78000 /* ori r15, r25, LO12(.got+4) */
174 #define PLT0_ENTRY_WORD2 0x05178000 /* lwi r17, [r15+0] */
175 #define PLT0_ENTRY_WORD3 0x04f78001 /* lwi r15, [r15+4] */
176 #define PLT0_ENTRY_WORD4 0x4a003c00 /* jr r15 */
178 /* $ta is change to $r15 (from $r25). */
179 #define PLT0_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[1]@GOT) */
180 #define PLT0_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[1]@GOT) */
181 #define PLT0_PIC_ENTRY_WORD2 0x40f7f400 /* add r15, gp, r15 */
182 #define PLT0_PIC_ENTRY_WORD3 0x05178000 /* lwi r17, [r15+0] */
183 #define PLT0_PIC_ENTRY_WORD4 0x04f78001 /* lwi r15, [r15+4] */
184 #define PLT0_PIC_ENTRY_WORD5 0x4a003c00 /* jr r15 */
186 #define PLT_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(&got[n+3]) */
187 #define PLT_ENTRY_WORD1 0x04f78000 /* lwi r15, r15, LO12(&got[n+3]) */
188 #define PLT_ENTRY_WORD2 0x4a003c00 /* jr r15 */
189 #define PLT_ENTRY_WORD3 0x45000000 /* movi r16, sizeof(RELA) * n */
190 #define PLT_ENTRY_WORD4 0x48000000 /* j .plt0. */
192 #define PLT_PIC_ENTRY_WORD0 0x46f00000 /* sethi r15, HI20(got[n+3]@GOT) */
193 #define PLT_PIC_ENTRY_WORD1 0x58f78000 /* ori r15, r15, LO12(got[n+3]@GOT) */
194 #define PLT_PIC_ENTRY_WORD2 0x38febc02 /* lw r15, [gp+r15] */
195 #define PLT_PIC_ENTRY_WORD3 0x4a003c00 /* jr r15 */
196 #define PLT_PIC_ENTRY_WORD4 0x45000000 /* movi r16, sizeof(RELA) * n */
197 #define PLT_PIC_ENTRY_WORD5 0x48000000 /* j .plt0 */
199 /* These are macros used to get the relocation accurate value. */
200 #define ACCURATE_8BIT_S1 (0x100)
201 #define ACCURATE_U9BIT_S1 (0x400)
202 #define ACCURATE_12BIT_S1 (0x2000)
203 #define ACCURATE_14BIT_S1 (0x4000)
204 #define ACCURATE_19BIT (0x40000)
206 /* These are macros used to get the relocation conservative value. */
207 #define CONSERVATIVE_8BIT_S1 (0x100 - 4)
208 #define CONSERVATIVE_14BIT_S1 (0x4000 - 4)
209 #define CONSERVATIVE_16BIT_S1 (0x10000 - 4)
210 #define CONSERVATIVE_24BIT_S1 (0x1000000 - 4)
211 /* These must be more conservative because the address may be in
212 different segment. */
213 #define CONSERVATIVE_15BIT (0x4000 - 0x1000)
214 #define CONSERVATIVE_15BIT_S1 (0x8000 - 0x1000)
215 #define CONSERVATIVE_15BIT_S2 (0x10000 - 0x1000)
216 #define CONSERVATIVE_19BIT (0x40000 - 0x1000)
217 #define CONSERVATIVE_20BIT (0x80000 - 0x1000)
219 /* Size of small data/bss sections, used to calculate SDA_BASE. */
220 static long got_size
= 0;
221 static int is_SDA_BASE_set
= 0;
222 static int is_ITB_BASE_set
= 0;
224 /* Convert ELF-VER in eflags to string for debugging purpose. */
225 static const char *const nds32_elfver_strtab
[] =
232 /* The nds32 linker needs to keep track of the number of relocs that it
233 decides to copy in check_relocs for each symbol. This is so that
234 it can discard PC relative relocs if it doesn't need them when
235 linking with -Bsymbolic. We store the information in a field
236 extending the regular ELF linker hash table. */
238 /* This structure keeps track of the number of PC relative relocs we
239 have copied for a given symbol. */
241 struct elf_nds32_pcrel_relocs_copied
244 struct elf_nds32_pcrel_relocs_copied
*next
;
245 /* A section in dynobj. */
247 /* Number of relocs copied in this section. */
251 /* The sh linker needs to keep track of the number of relocs that it
252 decides to copy as dynamic relocs in check_relocs for each symbol.
253 This is so that it can later discard them if they are found to be
254 unnecessary. We store the information in a field extending the
255 regular ELF linker hash table. */
257 struct elf_nds32_dyn_relocs
259 struct elf_nds32_dyn_relocs
*next
;
261 /* The input section of the reloc. */
264 /* Total number of relocs copied for the input section. */
267 /* Number of pc-relative relocs copied for the input section. */
268 bfd_size_type pc_count
;
271 /* Nds32 ELF linker hash entry. */
273 struct elf_nds32_link_hash_entry
275 struct elf_link_hash_entry root
;
277 /* Track dynamic relocs copied for this symbol. */
278 struct elf_nds32_dyn_relocs
*dyn_relocs
;
280 /* For checking relocation type. */
281 #define GOT_UNKNOWN 0
284 unsigned int tls_type
;
287 /* Get the nds32 ELF linker hash table from a link_info structure. */
289 #define FP_BASE_NAME "_FP_BASE_"
290 static int check_start_export_sym
= 0;
291 static size_t ex9_relax_size
= 0; /* Save ex9 predicted reducing size. */
293 /* The offset for executable tls relaxation. */
294 #define TP_OFFSET 0x0
296 struct elf_nds32_obj_tdata
298 struct elf_obj_tdata root
;
300 /* tls_type for each local got entry. */
301 char *local_got_tls_type
;
304 #define elf_nds32_tdata(bfd) \
305 ((struct elf_nds32_obj_tdata *) (bfd)->tdata.any)
307 #define elf32_nds32_local_got_tls_type(bfd) \
308 (elf_nds32_tdata (bfd)->local_got_tls_type)
310 #define elf32_nds32_hash_entry(ent) ((struct elf_nds32_link_hash_entry *)(ent))
313 nds32_elf_mkobject (bfd
*abfd
)
315 return bfd_elf_allocate_object (abfd
, sizeof (struct elf_nds32_obj_tdata
),
319 /* Relocations used for relocation. */
320 static reloc_howto_type nds32_elf_howto_table
[] =
322 /* This reloc does nothing. */
323 HOWTO (R_NDS32_NONE
, /* type */
325 3, /* size (0 = byte, 1 = short, 2 = long) */
327 FALSE
, /* pc_relative */
329 complain_overflow_dont
, /* complain_on_overflow */
330 bfd_elf_generic_reloc
, /* special_function */
331 "R_NDS32_NONE", /* name */
332 FALSE
, /* partial_inplace */
335 FALSE
), /* pcrel_offset */
337 /* A 16 bit absolute relocation. */
338 HOWTO (R_NDS32_16
, /* type */
340 1, /* size (0 = byte, 1 = short, 2 = long) */
342 FALSE
, /* pc_relative */
344 complain_overflow_bitfield
, /* complain_on_overflow */
345 nds32_elf_generic_reloc
, /* special_function */
346 "R_NDS32_16", /* name */
347 FALSE
, /* partial_inplace */
348 0xffff, /* src_mask */
349 0xffff, /* dst_mask */
350 FALSE
), /* pcrel_offset */
352 /* A 32 bit absolute relocation. */
353 HOWTO (R_NDS32_32
, /* type */
355 2, /* size (0 = byte, 1 = short, 2 = long) */
357 FALSE
, /* pc_relative */
359 complain_overflow_bitfield
, /* complain_on_overflow */
360 nds32_elf_generic_reloc
, /* special_function */
361 "R_NDS32_32", /* name */
362 FALSE
, /* partial_inplace */
363 0xffffffff, /* src_mask */
364 0xffffffff, /* dst_mask */
365 FALSE
), /* pcrel_offset */
367 /* A 20 bit address. */
368 HOWTO (R_NDS32_20
, /* type */
370 2, /* size (0 = byte, 1 = short, 2 = long) */
372 FALSE
, /* pc_relative */
374 complain_overflow_unsigned
, /* complain_on_overflow */
375 nds32_elf_generic_reloc
, /* special_function */
376 "R_NDS32_20", /* name */
377 FALSE
, /* partial_inplace */
378 0xfffff, /* src_mask */
379 0xfffff, /* dst_mask */
380 FALSE
), /* pcrel_offset */
382 /* An PC Relative 9-bit relocation, shifted by 2.
383 This reloc is complicated because relocations are relative to pc & -4.
384 i.e. branches in the right insn slot use the address of the left insn
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 HOWTO (R_NDS32_9_PCREL
, /* type */
392 1, /* size (0 = byte, 1 = short, 2 = long) */
394 TRUE
, /* pc_relative */
396 complain_overflow_signed
, /* complain_on_overflow */
397 nds32_elf_9_pcrel_reloc
, /* special_function */
398 "R_NDS32_9_PCREL", /* name */
399 FALSE
, /* partial_inplace */
402 TRUE
), /* pcrel_offset */
404 /* A relative 15 bit relocation, right shifted by 1. */
405 HOWTO (R_NDS32_15_PCREL
, /* type */
407 2, /* size (0 = byte, 1 = short, 2 = long) */
409 TRUE
, /* pc_relative */
411 complain_overflow_signed
, /* complain_on_overflow */
412 bfd_elf_generic_reloc
, /* special_function */
413 "R_NDS32_15_PCREL", /* name */
414 FALSE
, /* partial_inplace */
415 0x3fff, /* src_mask */
416 0x3fff, /* dst_mask */
417 TRUE
), /* pcrel_offset */
419 /* A relative 17 bit relocation, right shifted by 1. */
420 HOWTO (R_NDS32_17_PCREL
, /* type */
422 2, /* size (0 = byte, 1 = short, 2 = long) */
424 TRUE
, /* pc_relative */
426 complain_overflow_signed
, /* complain_on_overflow */
427 bfd_elf_generic_reloc
, /* special_function */
428 "R_NDS32_17_PCREL", /* name */
429 FALSE
, /* partial_inplace */
430 0xffff, /* src_mask */
431 0xffff, /* dst_mask */
432 TRUE
), /* pcrel_offset */
434 /* A relative 25 bit relocation, right shifted by 1. */
435 /* ??? It's not clear whether this should have partial_inplace set or not.
436 Branch relaxing in the assembler can store the addend in the insn,
437 and if bfd_install_relocation gets called the addend may get added
439 HOWTO (R_NDS32_25_PCREL
, /* type */
441 2, /* size (0 = byte, 1 = short, 2 = long) */
443 TRUE
, /* pc_relative */
445 complain_overflow_signed
, /* complain_on_overflow */
446 bfd_elf_generic_reloc
, /* special_function */
447 "R_NDS32_25_PCREL", /* name */
448 FALSE
, /* partial_inplace */
449 0xffffff, /* src_mask */
450 0xffffff, /* dst_mask */
451 TRUE
), /* pcrel_offset */
453 /* High 20 bits of address when lower 12 is or'd in. */
454 HOWTO (R_NDS32_HI20
, /* type */
456 2, /* size (0 = byte, 1 = short, 2 = long) */
458 FALSE
, /* pc_relative */
460 complain_overflow_dont
,/* complain_on_overflow */
461 nds32_elf_hi20_reloc
, /* special_function */
462 "R_NDS32_HI20", /* name */
463 FALSE
, /* partial_inplace */
464 0x000fffff, /* src_mask */
465 0x000fffff, /* dst_mask */
466 FALSE
), /* pcrel_offset */
468 /* Lower 12 bits of address. */
469 HOWTO (R_NDS32_LO12S3
, /* type */
471 2, /* size (0 = byte, 1 = short, 2 = long) */
473 FALSE
, /* pc_relative */
475 complain_overflow_dont
,/* complain_on_overflow */
476 nds32_elf_lo12_reloc
, /* special_function */
477 "R_NDS32_LO12S3", /* name */
478 FALSE
, /* partial_inplace */
479 0x000001ff, /* src_mask */
480 0x000001ff, /* dst_mask */
481 FALSE
), /* pcrel_offset */
483 /* Lower 12 bits of address. */
484 HOWTO (R_NDS32_LO12S2
, /* type */
486 2, /* size (0 = byte, 1 = short, 2 = long) */
488 FALSE
, /* pc_relative */
490 complain_overflow_dont
,/* complain_on_overflow */
491 nds32_elf_lo12_reloc
, /* special_function */
492 "R_NDS32_LO12S2", /* name */
493 FALSE
, /* partial_inplace */
494 0x000003ff, /* src_mask */
495 0x000003ff, /* dst_mask */
496 FALSE
), /* pcrel_offset */
498 /* Lower 12 bits of address. */
499 HOWTO (R_NDS32_LO12S1
, /* type */
501 2, /* size (0 = byte, 1 = short, 2 = long) */
503 FALSE
, /* pc_relative */
505 complain_overflow_dont
,/* complain_on_overflow */
506 nds32_elf_lo12_reloc
, /* special_function */
507 "R_NDS32_LO12S1", /* name */
508 FALSE
, /* partial_inplace */
509 0x000007ff, /* src_mask */
510 0x000007ff, /* dst_mask */
511 FALSE
), /* pcrel_offset */
513 /* Lower 12 bits of address. */
514 HOWTO (R_NDS32_LO12S0
, /* type */
516 2, /* size (0 = byte, 1 = short, 2 = long) */
518 FALSE
, /* pc_relative */
520 complain_overflow_dont
,/* complain_on_overflow */
521 nds32_elf_lo12_reloc
, /* special_function */
522 "R_NDS32_LO12S0", /* name */
523 FALSE
, /* partial_inplace */
524 0x00000fff, /* src_mask */
525 0x00000fff, /* dst_mask */
526 FALSE
), /* pcrel_offset */
528 /* Small data area 15 bits offset. */
529 HOWTO (R_NDS32_SDA15S3
, /* type */
531 2, /* size (0 = byte, 1 = short, 2 = long) */
533 FALSE
, /* pc_relative */
535 complain_overflow_signed
, /* complain_on_overflow */
536 nds32_elf_sda15_reloc
, /* special_function */
537 "R_NDS32_SDA15S3", /* name */
538 FALSE
, /* partial_inplace */
539 0x00007fff, /* src_mask */
540 0x00007fff, /* dst_mask */
541 FALSE
), /* pcrel_offset */
543 /* Small data area 15 bits offset. */
544 HOWTO (R_NDS32_SDA15S2
, /* type */
546 2, /* size (0 = byte, 1 = short, 2 = long) */
548 FALSE
, /* pc_relative */
550 complain_overflow_signed
, /* complain_on_overflow */
551 nds32_elf_sda15_reloc
, /* special_function */
552 "R_NDS32_SDA15S2", /* name */
553 FALSE
, /* partial_inplace */
554 0x00007fff, /* src_mask */
555 0x00007fff, /* dst_mask */
556 FALSE
), /* pcrel_offset */
558 /* Small data area 15 bits offset. */
559 HOWTO (R_NDS32_SDA15S1
, /* type */
561 2, /* size (0 = byte, 1 = short, 2 = long) */
563 FALSE
, /* pc_relative */
565 complain_overflow_signed
, /* complain_on_overflow */
566 nds32_elf_sda15_reloc
, /* special_function */
567 "R_NDS32_SDA15S1", /* name */
568 FALSE
, /* partial_inplace */
569 0x00007fff, /* src_mask */
570 0x00007fff, /* dst_mask */
571 FALSE
), /* pcrel_offset */
573 /* Small data area 15 bits offset. */
574 HOWTO (R_NDS32_SDA15S0
, /* type */
576 2, /* size (0 = byte, 1 = short, 2 = long) */
578 FALSE
, /* pc_relative */
580 complain_overflow_signed
, /* complain_on_overflow */
581 nds32_elf_sda15_reloc
, /* special_function */
582 "R_NDS32_SDA15S0", /* name */
583 FALSE
, /* partial_inplace */
584 0x00007fff, /* src_mask */
585 0x00007fff, /* dst_mask */
586 FALSE
), /* pcrel_offset */
588 /* GNU extension to record C++ vtable hierarchy */
589 HOWTO (R_NDS32_GNU_VTINHERIT
, /* type */
591 2, /* size (0 = byte, 1 = short, 2 = long) */
593 FALSE
, /* pc_relative */
595 complain_overflow_dont
,/* complain_on_overflow */
596 NULL
, /* special_function */
597 "R_NDS32_GNU_VTINHERIT", /* name */
598 FALSE
, /* partial_inplace */
601 FALSE
), /* pcrel_offset */
603 /* GNU extension to record C++ vtable member usage */
604 HOWTO (R_NDS32_GNU_VTENTRY
, /* type */
606 2, /* size (0 = byte, 1 = short, 2 = long) */
608 FALSE
, /* pc_relative */
610 complain_overflow_dont
,/* complain_on_overflow */
611 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
612 "R_NDS32_GNU_VTENTRY", /* name */
613 FALSE
, /* partial_inplace */
616 FALSE
), /* pcrel_offset */
618 /* A 16 bit absolute relocation. */
619 HOWTO (R_NDS32_16_RELA
, /* type */
621 1, /* size (0 = byte, 1 = short, 2 = long) */
623 FALSE
, /* pc_relative */
625 complain_overflow_bitfield
, /* complain_on_overflow */
626 bfd_elf_generic_reloc
, /* special_function */
627 "R_NDS32_16_RELA", /* name */
628 FALSE
, /* partial_inplace */
629 0xffff, /* src_mask */
630 0xffff, /* dst_mask */
631 FALSE
), /* pcrel_offset */
633 /* A 32 bit absolute relocation. */
634 HOWTO (R_NDS32_32_RELA
, /* type */
636 2, /* size (0 = byte, 1 = short, 2 = long) */
638 FALSE
, /* pc_relative */
640 complain_overflow_bitfield
, /* complain_on_overflow */
641 bfd_elf_generic_reloc
, /* special_function */
642 "R_NDS32_32_RELA", /* name */
643 FALSE
, /* partial_inplace */
644 0xffffffff, /* src_mask */
645 0xffffffff, /* dst_mask */
646 FALSE
), /* pcrel_offset */
648 /* A 20 bit address. */
649 HOWTO (R_NDS32_20_RELA
, /* type */
651 2, /* size (0 = byte, 1 = short, 2 = long) */
653 FALSE
, /* pc_relative */
655 complain_overflow_signed
, /* complain_on_overflow */
656 bfd_elf_generic_reloc
, /* special_function */
657 "R_NDS32_20_RELA", /* name */
658 FALSE
, /* partial_inplace */
659 0xfffff, /* src_mask */
660 0xfffff, /* dst_mask */
661 FALSE
), /* pcrel_offset */
663 HOWTO (R_NDS32_9_PCREL_RELA
, /* type */
665 1, /* size (0 = byte, 1 = short, 2 = long) */
667 TRUE
, /* pc_relative */
669 complain_overflow_signed
, /* complain_on_overflow */
670 bfd_elf_generic_reloc
, /* special_function */
671 "R_NDS32_9_PCREL_RELA",/* name */
672 FALSE
, /* partial_inplace */
675 TRUE
), /* pcrel_offset */
677 /* A relative 15 bit relocation, right shifted by 1. */
678 HOWTO (R_NDS32_15_PCREL_RELA
, /* type */
680 2, /* size (0 = byte, 1 = short, 2 = long) */
682 TRUE
, /* pc_relative */
684 complain_overflow_signed
, /* complain_on_overflow */
685 bfd_elf_generic_reloc
, /* special_function */
686 "R_NDS32_15_PCREL_RELA", /* name */
687 FALSE
, /* partial_inplace */
688 0x3fff, /* src_mask */
689 0x3fff, /* dst_mask */
690 TRUE
), /* pcrel_offset */
692 /* A relative 17 bit relocation, right shifted by 1. */
693 HOWTO (R_NDS32_17_PCREL_RELA
, /* type */
695 2, /* size (0 = byte, 1 = short, 2 = long) */
697 TRUE
, /* pc_relative */
699 complain_overflow_signed
, /* complain_on_overflow */
700 bfd_elf_generic_reloc
, /* special_function */
701 "R_NDS32_17_PCREL_RELA", /* name */
702 FALSE
, /* partial_inplace */
703 0xffff, /* src_mask */
704 0xffff, /* dst_mask */
705 TRUE
), /* pcrel_offset */
707 /* A relative 25 bit relocation, right shifted by 2. */
708 HOWTO (R_NDS32_25_PCREL_RELA
, /* type */
710 2, /* size (0 = byte, 1 = short, 2 = long) */
712 TRUE
, /* pc_relative */
714 complain_overflow_signed
, /* complain_on_overflow */
715 bfd_elf_generic_reloc
, /* special_function */
716 "R_NDS32_25_PCREL_RELA", /* name */
717 FALSE
, /* partial_inplace */
718 0xffffff, /* src_mask */
719 0xffffff, /* dst_mask */
720 TRUE
), /* pcrel_offset */
722 /* High 20 bits of address when lower 16 is or'd in. */
723 HOWTO (R_NDS32_HI20_RELA
, /* type */
725 2, /* size (0 = byte, 1 = short, 2 = long) */
727 FALSE
, /* pc_relative */
729 complain_overflow_dont
,/* complain_on_overflow */
730 bfd_elf_generic_reloc
, /* special_function */
731 "R_NDS32_HI20_RELA", /* name */
732 FALSE
, /* partial_inplace */
733 0x000fffff, /* src_mask */
734 0x000fffff, /* dst_mask */
735 FALSE
), /* pcrel_offset */
737 /* Lower 12 bits of address. */
738 HOWTO (R_NDS32_LO12S3_RELA
, /* type */
740 2, /* size (0 = byte, 1 = short, 2 = long) */
742 FALSE
, /* pc_relative */
744 complain_overflow_dont
,/* complain_on_overflow */
745 bfd_elf_generic_reloc
, /* special_function */
746 "R_NDS32_LO12S3_RELA", /* name */
747 FALSE
, /* partial_inplace */
748 0x000001ff, /* src_mask */
749 0x000001ff, /* dst_mask */
750 FALSE
), /* pcrel_offset */
752 /* Lower 12 bits of address. */
753 HOWTO (R_NDS32_LO12S2_RELA
, /* type */
755 2, /* size (0 = byte, 1 = short, 2 = long) */
757 FALSE
, /* pc_relative */
759 complain_overflow_dont
,/* complain_on_overflow */
760 bfd_elf_generic_reloc
, /* special_function */
761 "R_NDS32_LO12S2_RELA", /* name */
762 FALSE
, /* partial_inplace */
763 0x000003ff, /* src_mask */
764 0x000003ff, /* dst_mask */
765 FALSE
), /* pcrel_offset */
767 /* Lower 12 bits of address. */
768 HOWTO (R_NDS32_LO12S1_RELA
, /* type */
770 2, /* size (0 = byte, 1 = short, 2 = long) */
772 FALSE
, /* pc_relative */
774 complain_overflow_dont
,/* complain_on_overflow */
775 bfd_elf_generic_reloc
, /* special_function */
776 "R_NDS32_LO12S1_RELA", /* name */
777 FALSE
, /* partial_inplace */
778 0x000007ff, /* src_mask */
779 0x000007ff, /* dst_mask */
780 FALSE
), /* pcrel_offset */
782 /* Lower 12 bits of address. */
783 HOWTO (R_NDS32_LO12S0_RELA
, /* type */
785 2, /* size (0 = byte, 1 = short, 2 = long) */
787 FALSE
, /* pc_relative */
789 complain_overflow_dont
,/* complain_on_overflow */
790 bfd_elf_generic_reloc
, /* special_function */
791 "R_NDS32_LO12S0_RELA", /* name */
792 FALSE
, /* partial_inplace */
793 0x00000fff, /* src_mask */
794 0x00000fff, /* dst_mask */
795 FALSE
), /* pcrel_offset */
797 /* Small data area 15 bits offset. */
798 HOWTO (R_NDS32_SDA15S3_RELA
, /* type */
800 2, /* size (0 = byte, 1 = short, 2 = long) */
802 FALSE
, /* pc_relative */
804 complain_overflow_signed
, /* complain_on_overflow */
805 bfd_elf_generic_reloc
, /* special_function */
806 "R_NDS32_SDA15S3_RELA",/* name */
807 FALSE
, /* partial_inplace */
808 0x00007fff, /* src_mask */
809 0x00007fff, /* dst_mask */
810 FALSE
), /* pcrel_offset */
812 /* Small data area 15 bits offset. */
813 HOWTO (R_NDS32_SDA15S2_RELA
, /* type */
815 2, /* size (0 = byte, 1 = short, 2 = long) */
817 FALSE
, /* pc_relative */
819 complain_overflow_signed
, /* complain_on_overflow */
820 bfd_elf_generic_reloc
, /* special_function */
821 "R_NDS32_SDA15S2_RELA",/* name */
822 FALSE
, /* partial_inplace */
823 0x00007fff, /* src_mask */
824 0x00007fff, /* dst_mask */
825 FALSE
), /* pcrel_offset */
827 HOWTO (R_NDS32_SDA15S1_RELA
, /* type */
829 2, /* size (0 = byte, 1 = short, 2 = long) */
831 FALSE
, /* pc_relative */
833 complain_overflow_signed
, /* complain_on_overflow */
834 bfd_elf_generic_reloc
, /* special_function */
835 "R_NDS32_SDA15S1_RELA",/* name */
836 FALSE
, /* partial_inplace */
837 0x00007fff, /* src_mask */
838 0x00007fff, /* dst_mask */
839 FALSE
), /* pcrel_offset */
841 HOWTO (R_NDS32_SDA15S0_RELA
, /* type */
843 2, /* size (0 = byte, 1 = short, 2 = long) */
845 FALSE
, /* pc_relative */
847 complain_overflow_signed
, /* complain_on_overflow */
848 bfd_elf_generic_reloc
, /* special_function */
849 "R_NDS32_SDA15S0_RELA",/* name */
850 FALSE
, /* partial_inplace */
851 0x00007fff, /* src_mask */
852 0x00007fff, /* dst_mask */
853 FALSE
), /* pcrel_offset */
855 /* GNU extension to record C++ vtable hierarchy */
856 HOWTO (R_NDS32_RELA_GNU_VTINHERIT
, /* type */
858 2, /* size (0 = byte, 1 = short, 2 = long) */
860 FALSE
, /* pc_relative */
862 complain_overflow_dont
,/* complain_on_overflow */
863 NULL
, /* special_function */
864 "R_NDS32_RELA_GNU_VTINHERIT", /* name */
865 FALSE
, /* partial_inplace */
868 FALSE
), /* pcrel_offset */
870 /* GNU extension to record C++ vtable member usage */
871 HOWTO (R_NDS32_RELA_GNU_VTENTRY
, /* type */
873 2, /* size (0 = byte, 1 = short, 2 = long) */
875 FALSE
, /* pc_relative */
877 complain_overflow_dont
,/* complain_on_overflow */
878 _bfd_elf_rel_vtable_reloc_fn
, /* special_function */
879 "R_NDS32_RELA_GNU_VTENTRY", /* name */
880 FALSE
, /* partial_inplace */
883 FALSE
), /* pcrel_offset */
885 /* Like R_NDS32_20, but referring to the GOT table entry for
887 HOWTO (R_NDS32_GOT20
, /* type */
889 2, /* size (0 = byte, 1 = short, 2 = long) */
891 FALSE
, /* pc_relative */
893 complain_overflow_signed
, /* complain_on_overflow */
894 bfd_elf_generic_reloc
, /* special_function */
895 "R_NDS32_GOT20", /* name */
896 FALSE
, /* partial_inplace */
897 0xfffff, /* src_mask */
898 0xfffff, /* dst_mask */
899 FALSE
), /* pcrel_offset */
901 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
902 entry for the symbol. */
903 HOWTO (R_NDS32_25_PLTREL
, /* type */
905 2, /* size (0 = byte, 1 = short, 2 = long) */
907 TRUE
, /* pc_relative */
909 complain_overflow_signed
, /* complain_on_overflow */
910 bfd_elf_generic_reloc
, /* special_function */
911 "R_NDS32_25_PLTREL", /* name */
912 FALSE
, /* partial_inplace */
913 0xffffff, /* src_mask */
914 0xffffff, /* dst_mask */
915 TRUE
), /* pcrel_offset */
917 /* This is used only by the dynamic linker. The symbol should exist
918 both in the object being run and in some shared library. The
919 dynamic linker copies the data addressed by the symbol from the
920 shared library into the object, because the object being
921 run has to have the data at some particular address. */
922 HOWTO (R_NDS32_COPY
, /* type */
924 2, /* size (0 = byte, 1 = short, 2 = long) */
926 FALSE
, /* pc_relative */
928 complain_overflow_bitfield
, /* complain_on_overflow */
929 bfd_elf_generic_reloc
, /* special_function */
930 "R_NDS32_COPY", /* name */
931 FALSE
, /* partial_inplace */
932 0xffffffff, /* src_mask */
933 0xffffffff, /* dst_mask */
934 FALSE
), /* pcrel_offset */
936 /* Like R_NDS32_20, but used when setting global offset table
938 HOWTO (R_NDS32_GLOB_DAT
, /* type */
940 2, /* size (0 = byte, 1 = short, 2 = long) */
942 FALSE
, /* pc_relative */
944 complain_overflow_bitfield
, /* complain_on_overflow */
945 bfd_elf_generic_reloc
, /* special_function */
946 "R_NDS32_GLOB_DAT", /* name */
947 FALSE
, /* partial_inplace */
948 0xffffffff, /* src_mask */
949 0xffffffff, /* dst_mask */
950 FALSE
), /* pcrel_offset */
952 /* Marks a procedure linkage table entry for a symbol. */
953 HOWTO (R_NDS32_JMP_SLOT
, /* type */
955 2, /* size (0 = byte, 1 = short, 2 = long) */
957 FALSE
, /* pc_relative */
959 complain_overflow_bitfield
, /* complain_on_overflow */
960 bfd_elf_generic_reloc
, /* special_function */
961 "R_NDS32_JMP_SLOT", /* name */
962 FALSE
, /* partial_inplace */
963 0xffffffff, /* src_mask */
964 0xffffffff, /* dst_mask */
965 FALSE
), /* pcrel_offset */
967 /* Used only by the dynamic linker. When the object is run, this
968 longword is set to the load address of the object, plus the
970 HOWTO (R_NDS32_RELATIVE
, /* type */
972 2, /* size (0 = byte, 1 = short, 2 = long) */
974 FALSE
, /* pc_relative */
976 complain_overflow_bitfield
, /* complain_on_overflow */
977 bfd_elf_generic_reloc
, /* special_function */
978 "R_NDS32_RELATIVE", /* name */
979 FALSE
, /* partial_inplace */
980 0xffffffff, /* src_mask */
981 0xffffffff, /* dst_mask */
982 FALSE
), /* pcrel_offset */
984 HOWTO (R_NDS32_GOTOFF
, /* type */
986 2, /* size (0 = byte, 1 = short, 2 = long) */
988 FALSE
, /* pc_relative */
990 complain_overflow_signed
, /* complain_on_overflow */
991 bfd_elf_generic_reloc
, /* special_function */
992 "R_NDS32_GOTOFF", /* name */
993 FALSE
, /* partial_inplace */
994 0xfffff, /* src_mask */
995 0xfffff, /* dst_mask */
996 FALSE
), /* pcrel_offset */
998 /* An PC Relative 20-bit relocation used when setting PIC offset
1000 HOWTO (R_NDS32_GOTPC20
, /* type */
1002 2, /* size (0 = byte, 1 = short, 2 = long) */
1004 TRUE
, /* pc_relative */
1006 complain_overflow_signed
, /* complain_on_overflow */
1007 bfd_elf_generic_reloc
, /* special_function */
1008 "R_NDS32_GOTPC20", /* name */
1009 FALSE
, /* partial_inplace */
1010 0xfffff, /* src_mask */
1011 0xfffff, /* dst_mask */
1012 TRUE
), /* pcrel_offset */
1014 /* Like R_NDS32_HI20, but referring to the GOT table entry for
1016 HOWTO (R_NDS32_GOT_HI20
, /* type */
1017 12, /* rightshift */
1018 2, /* size (0 = byte, 1 = short, 2 = long) */
1020 FALSE
, /* pc_relative */
1022 complain_overflow_dont
,/* complain_on_overflow */
1023 bfd_elf_generic_reloc
, /* special_function */
1024 "R_NDS32_GOT_HI20", /* name */
1025 FALSE
, /* partial_inplace */
1026 0x000fffff, /* src_mask */
1027 0x000fffff, /* dst_mask */
1028 FALSE
), /* pcrel_offset */
1029 HOWTO (R_NDS32_GOT_LO12
, /* type */
1031 2, /* size (0 = byte, 1 = short, 2 = long) */
1033 FALSE
, /* pc_relative */
1035 complain_overflow_dont
,/* complain_on_overflow */
1036 bfd_elf_generic_reloc
, /* special_function */
1037 "R_NDS32_GOT_LO12", /* name */
1038 FALSE
, /* partial_inplace */
1039 0x00000fff, /* src_mask */
1040 0x00000fff, /* dst_mask */
1041 FALSE
), /* pcrel_offset */
1043 /* An PC Relative relocation used when setting PIC offset table register.
1044 Like R_NDS32_HI20, but referring to the GOT table entry for
1046 HOWTO (R_NDS32_GOTPC_HI20
, /* type */
1047 12, /* rightshift */
1048 2, /* size (0 = byte, 1 = short, 2 = long) */
1050 FALSE
, /* pc_relative */
1052 complain_overflow_dont
,/* complain_on_overflow */
1053 bfd_elf_generic_reloc
, /* special_function */
1054 "R_NDS32_GOTPC_HI20", /* name */
1055 FALSE
, /* partial_inplace */
1056 0x000fffff, /* src_mask */
1057 0x000fffff, /* dst_mask */
1058 TRUE
), /* pcrel_offset */
1059 HOWTO (R_NDS32_GOTPC_LO12
, /* type */
1061 2, /* size (0 = byte, 1 = short, 2 = long) */
1063 FALSE
, /* pc_relative */
1065 complain_overflow_dont
, /* complain_on_overflow */
1066 bfd_elf_generic_reloc
, /* special_function */
1067 "R_NDS32_GOTPC_LO12", /* name */
1068 FALSE
, /* partial_inplace */
1069 0x00000fff, /* src_mask */
1070 0x00000fff, /* dst_mask */
1071 TRUE
), /* pcrel_offset */
1073 HOWTO (R_NDS32_GOTOFF_HI20
, /* type */
1074 12, /* rightshift */
1075 2, /* size (0 = byte, 1 = short, 2 = long) */
1077 FALSE
, /* pc_relative */
1079 complain_overflow_dont
,/* complain_on_overflow */
1080 bfd_elf_generic_reloc
, /* special_function */
1081 "R_NDS32_GOTOFF_HI20", /* name */
1082 FALSE
, /* partial_inplace */
1083 0x000fffff, /* src_mask */
1084 0x000fffff, /* dst_mask */
1085 FALSE
), /* pcrel_offset */
1086 HOWTO (R_NDS32_GOTOFF_LO12
, /* type */
1088 2, /* size (0 = byte, 1 = short, 2 = long) */
1090 FALSE
, /* pc_relative */
1092 complain_overflow_dont
,/* complain_on_overflow */
1093 bfd_elf_generic_reloc
, /* special_function */
1094 "R_NDS32_GOTOFF_LO12", /* name */
1095 FALSE
, /* partial_inplace */
1096 0x00000fff, /* src_mask */
1097 0x00000fff, /* dst_mask */
1098 FALSE
), /* pcrel_offset */
1100 /* Alignment hint for relaxable instruction. This is used with
1101 R_NDS32_LABEL as a pair. Relax this instruction from 4 bytes to 2
1102 in order to make next label aligned on word boundary. */
1103 HOWTO (R_NDS32_INSN16
, /* type */
1105 2, /* size (0 = byte, 1 = short, 2 = long) */
1107 FALSE
, /* pc_relative */
1109 complain_overflow_dont
,/* complain_on_overflow */
1110 nds32_elf_ignore_reloc
,/* special_function */
1111 "R_NDS32_INSN16", /* name */
1112 FALSE
, /* partial_inplace */
1113 0x00000fff, /* src_mask */
1114 0x00000fff, /* dst_mask */
1115 FALSE
), /* pcrel_offset */
1117 /* Alignment hint for label. */
1118 HOWTO (R_NDS32_LABEL
, /* type */
1120 2, /* size (0 = byte, 1 = short, 2 = long) */
1122 FALSE
, /* pc_relative */
1124 complain_overflow_dont
,/* complain_on_overflow */
1125 nds32_elf_ignore_reloc
,/* special_function */
1126 "R_NDS32_LABEL", /* name */
1127 FALSE
, /* partial_inplace */
1128 0xffffffff, /* src_mask */
1129 0xffffffff, /* dst_mask */
1130 FALSE
), /* pcrel_offset */
1132 /* Relax hint for unconditional call sequence */
1133 HOWTO (R_NDS32_LONGCALL1
, /* type */
1135 2, /* size (0 = byte, 1 = short, 2 = long) */
1137 FALSE
, /* pc_relative */
1139 complain_overflow_dont
,/* complain_on_overflow */
1140 nds32_elf_ignore_reloc
,/* special_function */
1141 "R_NDS32_LONGCALL1", /* name */
1142 FALSE
, /* partial_inplace */
1143 0xffffffff, /* src_mask */
1144 0xffffffff, /* dst_mask */
1145 FALSE
), /* pcrel_offset */
1147 /* Relax hint for conditional call sequence. */
1148 HOWTO (R_NDS32_LONGCALL2
, /* type */
1150 2, /* size (0 = byte, 1 = short, 2 = long) */
1152 FALSE
, /* pc_relative */
1154 complain_overflow_dont
,/* complain_on_overflow */
1155 nds32_elf_ignore_reloc
,/* special_function */
1156 "R_NDS32_LONGCALL2", /* name */
1157 FALSE
, /* partial_inplace */
1158 0xffffffff, /* src_mask */
1159 0xffffffff, /* dst_mask */
1160 FALSE
), /* pcrel_offset */
1162 /* Relax hint for conditional call sequence. */
1163 HOWTO (R_NDS32_LONGCALL3
, /* type */
1165 2, /* size (0 = byte, 1 = short, 2 = long) */
1167 FALSE
, /* pc_relative */
1169 complain_overflow_dont
,/* complain_on_overflow */
1170 nds32_elf_ignore_reloc
,/* special_function */
1171 "R_NDS32_LONGCALL3", /* name */
1172 FALSE
, /* partial_inplace */
1173 0xffffffff, /* src_mask */
1174 0xffffffff, /* dst_mask */
1175 FALSE
), /* pcrel_offset */
1177 /* Relax hint for unconditional branch sequence. */
1178 HOWTO (R_NDS32_LONGJUMP1
, /* type */
1180 2, /* size (0 = byte, 1 = short, 2 = long) */
1182 FALSE
, /* pc_relative */
1184 complain_overflow_dont
,/* complain_on_overflow */
1185 nds32_elf_ignore_reloc
,/* special_function */
1186 "R_NDS32_LONGJUMP1", /* name */
1187 FALSE
, /* partial_inplace */
1188 0xffffffff, /* src_mask */
1189 0xffffffff, /* dst_mask */
1190 FALSE
), /* pcrel_offset */
1192 /* Relax hint for conditional branch sequence. */
1193 HOWTO (R_NDS32_LONGJUMP2
, /* type */
1195 2, /* size (0 = byte, 1 = short, 2 = long) */
1197 FALSE
, /* pc_relative */
1199 complain_overflow_dont
,/* complain_on_overflow */
1200 nds32_elf_ignore_reloc
,/* special_function */
1201 "R_NDS32_LONGJUMP2", /* name */
1202 FALSE
, /* partial_inplace */
1203 0xffffffff, /* src_mask */
1204 0xffffffff, /* dst_mask */
1205 FALSE
), /* pcrel_offset */
1207 /* Relax hint for conditional branch sequence. */
1208 HOWTO (R_NDS32_LONGJUMP3
, /* type */
1210 2, /* size (0 = byte, 1 = short, 2 = long) */
1212 FALSE
, /* pc_relative */
1214 complain_overflow_dont
,/* complain_on_overflow */
1215 nds32_elf_ignore_reloc
,/* special_function */
1216 "R_NDS32_LONGJUMP3", /* name */
1217 FALSE
, /* partial_inplace */
1218 0xffffffff, /* src_mask */
1219 0xffffffff, /* dst_mask */
1220 FALSE
), /* pcrel_offset */
1222 /* Relax hint for load/store sequence. */
1223 HOWTO (R_NDS32_LOADSTORE
, /* type */
1225 2, /* size (0 = byte, 1 = short, 2 = long) */
1227 FALSE
, /* pc_relative */
1229 complain_overflow_dont
,/* complain_on_overflow */
1230 nds32_elf_ignore_reloc
,/* special_function */
1231 "R_NDS32_LOADSTORE", /* name */
1232 FALSE
, /* partial_inplace */
1233 0xffffffff, /* src_mask */
1234 0xffffffff, /* dst_mask */
1235 FALSE
), /* pcrel_offset */
1237 /* Relax hint for load/store sequence. */
1238 HOWTO (R_NDS32_9_FIXED_RELA
, /* type */
1240 1, /* size (0 = byte, 1 = short, 2 = long) */
1242 FALSE
, /* pc_relative */
1244 complain_overflow_dont
,/* complain_on_overflow */
1245 nds32_elf_ignore_reloc
,/* special_function */
1246 "R_NDS32_9_FIXED_RELA",/* name */
1247 FALSE
, /* partial_inplace */
1248 0x000000ff, /* src_mask */
1249 0x000000ff, /* dst_mask */
1250 FALSE
), /* pcrel_offset */
1252 /* Relax hint for load/store sequence. */
1253 HOWTO (R_NDS32_15_FIXED_RELA
, /* type */
1255 2, /* size (0 = byte, 1 = short, 2 = long) */
1257 FALSE
, /* pc_relative */
1259 complain_overflow_dont
,/* complain_on_overflow */
1260 nds32_elf_ignore_reloc
,/* special_function */
1261 "R_NDS32_15_FIXED_RELA", /* name */
1262 FALSE
, /* partial_inplace */
1263 0x00003fff, /* src_mask */
1264 0x00003fff, /* dst_mask */
1265 FALSE
), /* pcrel_offset */
1267 /* Relax hint for load/store sequence. */
1268 HOWTO (R_NDS32_17_FIXED_RELA
, /* type */
1270 2, /* size (0 = byte, 1 = short, 2 = long) */
1272 FALSE
, /* pc_relative */
1274 complain_overflow_dont
,/* complain_on_overflow */
1275 nds32_elf_ignore_reloc
,/* special_function */
1276 "R_NDS32_17_FIXED_RELA", /* name */
1277 FALSE
, /* partial_inplace */
1278 0x0000ffff, /* src_mask */
1279 0x0000ffff, /* dst_mask */
1280 FALSE
), /* pcrel_offset */
1282 /* Relax hint for load/store sequence. */
1283 HOWTO (R_NDS32_25_FIXED_RELA
, /* type */
1285 2, /* size (0 = byte, 1 = short, 2 = long) */
1287 FALSE
, /* pc_relative */
1289 complain_overflow_dont
,/* complain_on_overflow */
1290 nds32_elf_ignore_reloc
,/* special_function */
1291 "R_NDS32_25_FIXED_RELA", /* name */
1292 FALSE
, /* partial_inplace */
1293 0x00ffffff, /* src_mask */
1294 0x00ffffff, /* dst_mask */
1295 FALSE
), /* pcrel_offset */
1297 /* High 20 bits of PLT symbol offset relative to PC. */
1298 HOWTO (R_NDS32_PLTREL_HI20
, /* type */
1299 12, /* rightshift */
1300 2, /* size (0 = byte, 1 = short, 2 = long) */
1302 FALSE
, /* pc_relative */
1304 complain_overflow_dont
,/* complain_on_overflow */
1305 bfd_elf_generic_reloc
, /* special_function */
1306 "R_NDS32_PLTREL_HI20", /* name */
1307 FALSE
, /* partial_inplace */
1308 0x000fffff, /* src_mask */
1309 0x000fffff, /* dst_mask */
1310 FALSE
), /* pcrel_offset */
1312 /* Low 12 bits of PLT symbol offset relative to PC. */
1313 HOWTO (R_NDS32_PLTREL_LO12
, /* type */
1315 2, /* size (0 = byte, 1 = short, 2 = long) */
1317 FALSE
, /* pc_relative */
1319 complain_overflow_dont
,/* complain_on_overflow */
1320 bfd_elf_generic_reloc
, /* special_function */
1321 "R_NDS32_PLTREL_LO12", /* name */
1322 FALSE
, /* partial_inplace */
1323 0x00000fff, /* src_mask */
1324 0x00000fff, /* dst_mask */
1325 FALSE
), /* pcrel_offset */
1327 /* High 20 bits of PLT symbol offset relative to GOT (GP). */
1328 HOWTO (R_NDS32_PLT_GOTREL_HI20
, /* type */
1329 12, /* rightshift */
1330 2, /* size (0 = byte, 1 = short, 2 = long) */
1332 FALSE
, /* pc_relative */
1334 complain_overflow_dont
,/* complain_on_overflow */
1335 bfd_elf_generic_reloc
, /* special_function */
1336 "R_NDS32_PLT_GOTREL_HI20", /* name */
1337 FALSE
, /* partial_inplace */
1338 0x000fffff, /* src_mask */
1339 0x000fffff, /* dst_mask */
1340 FALSE
), /* pcrel_offset */
1342 /* Low 12 bits of PLT symbol offset relative to GOT (GP). */
1343 HOWTO (R_NDS32_PLT_GOTREL_LO12
, /* type */
1345 2, /* size (0 = byte, 1 = short, 2 = long) */
1347 FALSE
, /* pc_relative */
1349 complain_overflow_dont
,/* complain_on_overflow */
1350 bfd_elf_generic_reloc
, /* special_function */
1351 "R_NDS32_PLT_GOTREL_LO12", /* name */
1352 FALSE
, /* partial_inplace */
1353 0x00000fff, /* src_mask */
1354 0x00000fff, /* dst_mask */
1355 FALSE
), /* pcrel_offset */
1357 /* Small data area 12 bits offset. */
1358 HOWTO (R_NDS32_SDA12S2_DP_RELA
, /* type */
1360 2, /* size (0 = byte, 1 = short, 2 = long) */
1362 FALSE
, /* pc_relative */
1364 complain_overflow_signed
, /* complain_on_overflow */
1365 bfd_elf_generic_reloc
, /* special_function */
1366 "R_NDS32_SDA12S2_DP_RELA", /* name */
1367 FALSE
, /* partial_inplace */
1368 0x00000fff, /* src_mask */
1369 0x00000fff, /* dst_mask */
1370 FALSE
), /* pcrel_offset */
1372 /* Small data area 12 bits offset. */
1373 HOWTO (R_NDS32_SDA12S2_SP_RELA
, /* type */
1375 2, /* size (0 = byte, 1 = short, 2 = long) */
1377 FALSE
, /* pc_relative */
1379 complain_overflow_signed
, /* complain_on_overflow */
1380 bfd_elf_generic_reloc
, /* special_function */
1381 "R_NDS32_SDA12S2_SP_RELA", /* name */
1382 FALSE
, /* partial_inplace */
1383 0x00000fff, /* src_mask */
1384 0x00000fff, /* dst_mask */
1385 FALSE
), /* pcrel_offset */
1386 /* Lower 12 bits of address. */
1388 HOWTO (R_NDS32_LO12S2_DP_RELA
, /* type */
1390 2, /* size (0 = byte, 1 = short, 2 = long) */
1392 FALSE
, /* pc_relative */
1394 complain_overflow_dont
,/* complain_on_overflow */
1395 bfd_elf_generic_reloc
, /* special_function */
1396 "R_NDS32_LO12S2_DP_RELA", /* name */
1397 FALSE
, /* partial_inplace */
1398 0x000003ff, /* src_mask */
1399 0x000003ff, /* dst_mask */
1400 FALSE
), /* pcrel_offset */
1402 /* Lower 12 bits of address. */
1403 HOWTO (R_NDS32_LO12S2_SP_RELA
,/* type */
1405 2, /* size (0 = byte, 1 = short, 2 = long) */
1407 FALSE
, /* pc_relative */
1409 complain_overflow_dont
,/* complain_on_overflow */
1410 bfd_elf_generic_reloc
, /* special_function */
1411 "R_NDS32_LO12S2_SP_RELA", /* name */
1412 FALSE
, /* partial_inplace */
1413 0x000003ff, /* src_mask */
1414 0x000003ff, /* dst_mask */
1415 FALSE
), /* pcrel_offset */
1416 /* Lower 12 bits of address. Special identity for or case. */
1417 HOWTO (R_NDS32_LO12S0_ORI_RELA
, /* type */
1419 2, /* size (0 = byte, 1 = short, 2 = long) */
1421 FALSE
, /* pc_relative */
1423 complain_overflow_dont
,/* complain_on_overflow */
1424 bfd_elf_generic_reloc
, /* special_function */
1425 "R_NDS32_LO12S0_ORI_RELA", /* name */
1426 FALSE
, /* partial_inplace */
1427 0x00000fff, /* src_mask */
1428 0x00000fff, /* dst_mask */
1429 FALSE
), /* pcrel_offset */
1430 /* Small data area 19 bits offset. */
1431 HOWTO (R_NDS32_SDA16S3_RELA
, /* type */
1433 2, /* size (0 = byte, 1 = short, 2 = long) */
1435 FALSE
, /* pc_relative */
1437 complain_overflow_signed
, /* complain_on_overflow */
1438 bfd_elf_generic_reloc
, /* special_function */
1439 "R_NDS32_SDA16S3_RELA",/* name */
1440 FALSE
, /* partial_inplace */
1441 0x0000ffff, /* src_mask */
1442 0x0000ffff, /* dst_mask */
1443 FALSE
), /* pcrel_offset */
1445 /* Small data area 15 bits offset. */
1446 HOWTO (R_NDS32_SDA17S2_RELA
, /* type */
1448 2, /* size (0 = byte, 1 = short, 2 = long) */
1450 FALSE
, /* pc_relative */
1452 complain_overflow_signed
, /* complain_on_overflow */
1453 bfd_elf_generic_reloc
, /* special_function */
1454 "R_NDS32_SDA17S2_RELA",/* name */
1455 FALSE
, /* partial_inplace */
1456 0x0001ffff, /* src_mask */
1457 0x0001ffff, /* dst_mask */
1458 FALSE
), /* pcrel_offset */
1460 HOWTO (R_NDS32_SDA18S1_RELA
, /* type */
1462 2, /* size (0 = byte, 1 = short, 2 = long) */
1464 FALSE
, /* pc_relative */
1466 complain_overflow_signed
, /* complain_on_overflow */
1467 bfd_elf_generic_reloc
, /* special_function */
1468 "R_NDS32_SDA18S1_RELA",/* name */
1469 FALSE
, /* partial_inplace */
1470 0x0003ffff, /* src_mask */
1471 0x0003ffff, /* dst_mask */
1472 FALSE
), /* pcrel_offset */
1474 HOWTO (R_NDS32_SDA19S0_RELA
, /* type */
1476 2, /* size (0 = byte, 1 = short, 2 = long) */
1478 FALSE
, /* pc_relative */
1480 complain_overflow_signed
, /* complain_on_overflow */
1481 bfd_elf_generic_reloc
, /* special_function */
1482 "R_NDS32_SDA19S0_RELA",/* name */
1483 FALSE
, /* partial_inplace */
1484 0x0007ffff, /* src_mask */
1485 0x0007ffff, /* dst_mask */
1486 FALSE
), /* pcrel_offset */
1487 HOWTO (R_NDS32_DWARF2_OP1_RELA
, /* type */
1489 0, /* size (0 = byte, 1 = short, 2 = long) */
1491 FALSE
, /* pc_relative */
1493 complain_overflow_dont
,/* complain_on_overflow */
1494 nds32_elf_ignore_reloc
,/* special_function */
1495 "R_NDS32_DWARF2_OP1_RELA", /* name */
1496 FALSE
, /* partial_inplace */
1497 0xff, /* src_mask */
1498 0xff, /* dst_mask */
1499 FALSE
), /* pcrel_offset */
1500 HOWTO (R_NDS32_DWARF2_OP2_RELA
, /* type */
1502 1, /* size (0 = byte, 1 = short, 2 = long) */
1504 FALSE
, /* pc_relative */
1506 complain_overflow_dont
,/* complain_on_overflow */
1507 nds32_elf_ignore_reloc
,/* special_function */
1508 "R_NDS32_DWARF2_OP2_RELA", /* name */
1509 FALSE
, /* partial_inplace */
1510 0xffff, /* src_mask */
1511 0xffff, /* dst_mask */
1512 FALSE
), /* pcrel_offset */
1513 HOWTO (R_NDS32_DWARF2_LEB_RELA
, /* type */
1515 2, /* size (0 = byte, 1 = short, 2 = long) */
1517 FALSE
, /* pc_relative */
1519 complain_overflow_dont
,/* complain_on_overflow */
1520 nds32_elf_ignore_reloc
,/* special_function */
1521 "R_NDS32_DWARF2_LEB_RELA", /* name */
1522 FALSE
, /* partial_inplace */
1523 0xffffffff, /* src_mask */
1524 0xffffffff, /* dst_mask */
1525 FALSE
), /* pcrel_offset */
1526 HOWTO (R_NDS32_UPDATE_TA_RELA
,/* type */
1528 1, /* size (0 = byte, 1 = short, 2 = long) */
1530 FALSE
, /* pc_relative */
1532 complain_overflow_dont
,/* complain_on_overflow */
1533 nds32_elf_ignore_reloc
,/* special_function */
1534 "R_NDS32_UPDATE_TA_RELA", /* name */
1535 FALSE
, /* partial_inplace */
1536 0xffff, /* src_mask */
1537 0xffff, /* dst_mask */
1538 FALSE
), /* pcrel_offset */
1539 /* Like R_NDS32_PCREL, but referring to the procedure linkage table
1540 entry for the symbol. */
1541 HOWTO (R_NDS32_9_PLTREL
, /* type */
1543 1, /* size (0 = byte, 1 = short, 2 = long) */
1545 TRUE
, /* pc_relative */
1547 complain_overflow_signed
, /* complain_on_overflow */
1548 bfd_elf_generic_reloc
, /* special_function */
1549 "R_NDS32_9_PLTREL", /* name */
1550 FALSE
, /* partial_inplace */
1551 0xff, /* src_mask */
1552 0xff, /* dst_mask */
1553 TRUE
), /* pcrel_offset */
1554 /* Low 20 bits of PLT symbol offset relative to GOT (GP). */
1555 HOWTO (R_NDS32_PLT_GOTREL_LO20
, /* type */
1557 2, /* size (0 = byte, 1 = short, 2 = long) */
1559 FALSE
, /* pc_relative */
1561 complain_overflow_dont
,/* complain_on_overflow */
1562 bfd_elf_generic_reloc
, /* special_function */
1563 "R_NDS32_PLT_GOTREL_LO20", /* name */
1564 FALSE
, /* partial_inplace */
1565 0x000fffff, /* src_mask */
1566 0x000fffff, /* dst_mask */
1567 FALSE
), /* pcrel_offset */
1568 /* low 15 bits of PLT symbol offset relative to GOT (GP) */
1569 HOWTO (R_NDS32_PLT_GOTREL_LO15
, /* type */
1571 2, /* size (0 = byte, 1 = short, 2 = long) */
1573 FALSE
, /* pc_relative */
1575 complain_overflow_dont
,/* complain_on_overflow */
1576 bfd_elf_generic_reloc
, /* special_function */
1577 "R_NDS32_PLT_GOTREL_LO15", /* name */
1578 FALSE
, /* partial_inplace */
1579 0x00007fff, /* src_mask */
1580 0x00007fff, /* dst_mask */
1581 FALSE
), /* pcrel_offset */
1582 /* Low 19 bits of PLT symbol offset relative to GOT (GP). */
1583 HOWTO (R_NDS32_PLT_GOTREL_LO19
, /* type */
1585 2, /* size (0 = byte, 1 = short, 2 = long) */
1587 FALSE
, /* pc_relative */
1589 complain_overflow_dont
,/* complain_on_overflow */
1590 bfd_elf_generic_reloc
, /* special_function */
1591 "R_NDS32_PLT_GOTREL_LO19", /* name */
1592 FALSE
, /* partial_inplace */
1593 0x0007ffff, /* src_mask */
1594 0x0007ffff, /* dst_mask */
1595 FALSE
), /* pcrel_offset */
1596 HOWTO (R_NDS32_GOT_LO15
, /* type */
1598 2, /* size (0 = byte, 1 = short, 2 = long) */
1600 FALSE
, /* pc_relative */
1602 complain_overflow_dont
,/* complain_on_overflow */
1603 bfd_elf_generic_reloc
, /* special_function */
1604 "R_NDS32_GOT_LO15", /* name */
1605 FALSE
, /* partial_inplace */
1606 0x00007fff, /* src_mask */
1607 0x00007fff, /* dst_mask */
1608 FALSE
), /* pcrel_offset */
1609 HOWTO (R_NDS32_GOT_LO19
, /* type */
1611 2, /* size (0 = byte, 1 = short, 2 = long) */
1613 FALSE
, /* pc_relative */
1615 complain_overflow_dont
,/* complain_on_overflow */
1616 bfd_elf_generic_reloc
, /* special_function */
1617 "R_NDS32_GOT_LO19", /* name */
1618 FALSE
, /* partial_inplace */
1619 0x0007ffff, /* src_mask */
1620 0x0007ffff, /* dst_mask */
1621 FALSE
), /* pcrel_offset */
1622 HOWTO (R_NDS32_GOTOFF_LO15
, /* type */
1624 2, /* size (0 = byte, 1 = short, 2 = long) */
1626 FALSE
, /* pc_relative */
1628 complain_overflow_dont
,/* complain_on_overflow */
1629 bfd_elf_generic_reloc
, /* special_function */
1630 "R_NDS32_GOTOFF_LO15", /* name */
1631 FALSE
, /* partial_inplace */
1632 0x00007fff, /* src_mask */
1633 0x00007fff, /* dst_mask */
1634 FALSE
), /* pcrel_offset */
1635 HOWTO (R_NDS32_GOTOFF_LO19
, /* type */
1637 2, /* size (0 = byte, 1 = short, 2 = long) */
1639 FALSE
, /* pc_relative */
1641 complain_overflow_dont
,/* complain_on_overflow */
1642 bfd_elf_generic_reloc
, /* special_function */
1643 "R_NDS32_GOTOFF_LO19", /* name */
1644 FALSE
, /* partial_inplace */
1645 0x0007ffff, /* src_mask */
1646 0x0007ffff, /* dst_mask */
1647 FALSE
), /* pcrel_offset */
1648 /* GOT 15 bits offset. */
1649 HOWTO (R_NDS32_GOT15S2_RELA
, /* type */
1651 2, /* size (0 = byte, 1 = short, 2 = long) */
1653 FALSE
, /* pc_relative */
1655 complain_overflow_signed
, /* complain_on_overflow */
1656 bfd_elf_generic_reloc
, /* special_function */
1657 "R_NDS32_GOT15S2_RELA",/* name */
1658 FALSE
, /* partial_inplace */
1659 0x00007fff, /* src_mask */
1660 0x00007fff, /* dst_mask */
1661 FALSE
), /* pcrel_offset */
1662 /* GOT 17 bits offset. */
1663 HOWTO (R_NDS32_GOT17S2_RELA
, /* type */
1665 2, /* size (0 = byte, 1 = short, 2 = long) */
1667 FALSE
, /* pc_relative */
1669 complain_overflow_signed
, /* complain_on_overflow */
1670 bfd_elf_generic_reloc
, /* special_function */
1671 "R_NDS32_GOT17S2_RELA",/* name */
1672 FALSE
, /* partial_inplace */
1673 0x0001ffff, /* src_mask */
1674 0x0001ffff, /* dst_mask */
1675 FALSE
), /* pcrel_offset */
1676 /* A 5 bit address. */
1677 HOWTO (R_NDS32_5_RELA
, /* type */
1679 1, /* size (0 = byte, 1 = short, 2 = long) */
1681 FALSE
, /* pc_relative */
1683 complain_overflow_signed
, /* complain_on_overflow */
1684 bfd_elf_generic_reloc
, /* special_function */
1685 "R_NDS32_5_RELA", /* name */
1686 FALSE
, /* partial_inplace */
1687 0x1f, /* src_mask */
1688 0x1f, /* dst_mask */
1689 FALSE
), /* pcrel_offset */
1690 HOWTO (R_NDS32_10_UPCREL_RELA
,/* type */
1692 1, /* size (0 = byte, 1 = short, 2 = long) */
1694 TRUE
, /* pc_relative */
1696 complain_overflow_unsigned
, /* complain_on_overflow */
1697 bfd_elf_generic_reloc
, /* special_function */
1698 "R_NDS32_10_UPCREL_RELA", /* name */
1699 FALSE
, /* partial_inplace */
1700 0x1ff, /* src_mask */
1701 0x1ff, /* dst_mask */
1702 TRUE
), /* pcrel_offset */
1703 HOWTO (R_NDS32_SDA_FP7U2_RELA
,/* type */
1705 1, /* size (0 = byte, 1 = short, 2 = long) */
1707 FALSE
, /* pc_relative */
1709 complain_overflow_unsigned
, /* complain_on_overflow */
1710 bfd_elf_generic_reloc
, /* special_function */
1711 "R_NDS32_SDA_FP7U2_RELA", /* name */
1712 FALSE
, /* partial_inplace */
1713 0x0000007f, /* src_mask */
1714 0x0000007f, /* dst_mask */
1715 FALSE
), /* pcrel_offset */
1716 HOWTO (R_NDS32_WORD_9_PCREL_RELA
, /* type */
1718 2, /* size (0 = byte, 1 = short, 2 = long) */
1720 TRUE
, /* pc_relative */
1722 complain_overflow_signed
, /* complain_on_overflow */
1723 bfd_elf_generic_reloc
, /* special_function */
1724 "R_NDS32_WORD_9_PCREL_RELA", /* name */
1725 FALSE
, /* partial_inplace */
1726 0xff, /* src_mask */
1727 0xff, /* dst_mask */
1728 TRUE
), /* pcrel_offset */
1729 HOWTO (R_NDS32_25_ABS_RELA
, /* type */
1731 2, /* size (0 = byte, 1 = short, 2 = long) */
1733 FALSE
, /* pc_relative */
1735 complain_overflow_dont
,/* complain_on_overflow */
1736 bfd_elf_generic_reloc
, /* special_function */
1737 "R_NDS32_25_ABS_RELA", /* name */
1738 FALSE
, /* partial_inplace */
1739 0xffffff, /* src_mask */
1740 0xffffff, /* dst_mask */
1741 FALSE
), /* pcrel_offset */
1743 /* A relative 17 bit relocation for ifc, right shifted by 1. */
1744 HOWTO (R_NDS32_17IFC_PCREL_RELA
, /* type */
1746 2, /* size (0 = byte, 1 = short, 2 = long) */
1748 TRUE
, /* pc_relative */
1750 complain_overflow_signed
, /* complain_on_overflow */
1751 bfd_elf_generic_reloc
, /* special_function */
1752 "R_NDS32_17IFC_PCREL_RELA", /* name */
1753 FALSE
, /* partial_inplace */
1754 0xffff, /* src_mask */
1755 0xffff, /* dst_mask */
1756 TRUE
), /* pcrel_offset */
1758 /* A relative unsigned 10 bit relocation for ifc, right shifted by 1. */
1759 HOWTO (R_NDS32_10IFCU_PCREL_RELA
, /* type */
1761 1, /* size (0 = byte, 1 = short, 2 = long) */
1763 TRUE
, /* pc_relative */
1765 complain_overflow_unsigned
, /* complain_on_overflow */
1766 bfd_elf_generic_reloc
, /* special_function */
1767 "R_NDS32_10IFCU_PCREL_RELA", /* name */
1768 FALSE
, /* partial_inplace */
1769 0x1ff, /* src_mask */
1770 0x1ff, /* dst_mask */
1771 TRUE
), /* pcrel_offset */
1773 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1774 HOWTO (R_NDS32_TLS_LE_HI20
, /* type */
1775 12, /* rightshift */
1776 2, /* size (0 = byte, 1 = short, 2 = long) */
1778 FALSE
, /* pc_relative */
1780 complain_overflow_dont
, /* complain_on_overflow */
1781 bfd_elf_generic_reloc
, /* special_function */
1782 "R_NDS32_TLS_LE_HI20", /* name */
1783 FALSE
, /* partial_inplace */
1784 0x000fffff, /* src_mask */
1785 0x000fffff, /* dst_mask */
1786 FALSE
), /* pcrel_offset */
1787 HOWTO (R_NDS32_TLS_LE_LO12
, /* type */
1789 2, /* size (0 = byte, 1 = short, 2 = long) */
1791 FALSE
, /* pc_relative */
1793 complain_overflow_dont
, /* complain_on_overflow */
1794 bfd_elf_generic_reloc
, /* special_function */
1795 "R_NDS32_TLS_LE_LO12", /* name */
1796 FALSE
, /* partial_inplace */
1797 0x00000fff, /* src_mask */
1798 0x00000fff, /* dst_mask */
1799 FALSE
), /* pcrel_offset */
1801 /* Like R_NDS32_HI20, but referring to the TLS entry for the symbol. */
1802 HOWTO (R_NDS32_TLS_IE_HI20
, /* type */
1803 12, /* rightshift */
1804 2, /* size (0 = byte, 1 = short, 2 = long) */
1806 FALSE
, /* pc_relative */
1808 complain_overflow_dont
, /* complain_on_overflow */
1809 bfd_elf_generic_reloc
, /* special_function */
1810 "R_NDS32_TLS_IE_HI20", /* name */
1811 FALSE
, /* partial_inplace */
1812 0x000fffff, /* src_mask */
1813 0x000fffff, /* dst_mask */
1814 FALSE
), /* pcrel_offset */
1815 HOWTO (R_NDS32_TLS_IE_LO12S2
, /* type */
1817 2, /* size (0 = byte, 1 = short, 2 = long) */
1819 FALSE
, /* pc_relative */
1821 complain_overflow_dont
, /* complain_on_overflow */
1822 bfd_elf_generic_reloc
, /* special_function */
1823 "R_NDS32_TLS_IE_LO12S2", /* name */
1824 FALSE
, /* partial_inplace */
1825 0x000003ff, /* src_mask */
1826 0x000003ff, /* dst_mask */
1827 FALSE
), /* pcrel_offset */
1828 /* Mark a TLS IE entry in GOT. */
1829 HOWTO (R_NDS32_TLS_TPOFF
, /* type */
1831 2, /* size (0 = byte, 1 = short, 2 = long) */
1833 FALSE
, /* pc_relative */
1835 complain_overflow_bitfield
, /* complain_on_overflow */
1836 bfd_elf_generic_reloc
, /* special_function */
1837 "R_NDS32_TLS_TPOFF", /* name */
1838 FALSE
, /* partial_inplace */
1839 0xffffffff, /* src_mask */
1840 0xffffffff, /* dst_mask */
1841 FALSE
), /* pcrel_offset */
1842 /* A 20 bit address. */
1843 HOWTO (R_NDS32_TLS_LE_20
, /* type */
1845 2, /* size (0 = byte, 1 = short, 2 = long) */
1847 FALSE
, /* pc_relative */
1849 complain_overflow_signed
, /* complain_on_overflow */
1850 bfd_elf_generic_reloc
, /* special_function */
1851 "R_NDS32_TLS_LE_20", /* name */
1852 FALSE
, /* partial_inplace */
1853 0xfffff, /* src_mask */
1854 0xfffff, /* dst_mask */
1855 FALSE
), /* pcrel_offset */
1856 HOWTO (R_NDS32_TLS_LE_15S0
, /* type */
1858 2, /* size (0 = byte, 1 = short, 2 = long) */
1860 FALSE
, /* pc_relative */
1862 complain_overflow_signed
, /* complain_on_overflow */
1863 bfd_elf_generic_reloc
, /* special_function */
1864 "R_NDS32_TLS_LE_15S0", /* name */
1865 FALSE
, /* partial_inplace */
1866 0x7fff, /* src_mask */
1867 0x7fff, /* dst_mask */
1868 FALSE
), /* pcrel_offset */
1869 HOWTO (R_NDS32_TLS_LE_15S1
, /* type */
1871 2, /* size (0 = byte, 1 = short, 2 = long) */
1873 FALSE
, /* pc_relative */
1875 complain_overflow_signed
, /* complain_on_overflow */
1876 bfd_elf_generic_reloc
, /* special_function */
1877 "R_NDS32_TLS_LE_15S1", /* name */
1878 FALSE
, /* partial_inplace */
1879 0x7fff, /* src_mask */
1880 0x7fff, /* dst_mask */
1881 FALSE
), /* pcrel_offset */
1882 HOWTO (R_NDS32_TLS_LE_15S2
, /* type */
1884 2, /* size (0 = byte, 1 = short, 2 = long) */
1886 FALSE
, /* pc_relative */
1888 complain_overflow_signed
, /* complain_on_overflow */
1889 bfd_elf_generic_reloc
, /* special_function */
1890 "R_NDS32_TLS_LE_15S2", /* name */
1891 FALSE
, /* partial_inplace */
1892 0x7fff, /* src_mask */
1893 0x7fff, /* dst_mask */
1894 FALSE
), /* pcrel_offset */
1896 /* Relax hint for unconditional call sequence */
1897 HOWTO (R_NDS32_LONGCALL4
, /* type */
1899 2, /* size (0 = byte, 1 = short, 2 = long) */
1901 FALSE
, /* pc_relative */
1903 complain_overflow_dont
, /* complain_on_overflow */
1904 nds32_elf_ignore_reloc
, /* special_function */
1905 "R_NDS32_LONGCALL4", /* name */
1906 FALSE
, /* partial_inplace */
1907 0xffffffff, /* src_mask */
1908 0xffffffff, /* dst_mask */
1909 FALSE
), /* pcrel_offset */
1911 /* Relax hint for conditional call sequence. */
1912 HOWTO (R_NDS32_LONGCALL5
, /* type */
1914 2, /* size (0 = byte, 1 = short, 2 = long) */
1916 FALSE
, /* pc_relative */
1918 complain_overflow_dont
, /* complain_on_overflow */
1919 nds32_elf_ignore_reloc
, /* special_function */
1920 "R_NDS32_LONGCALL5", /* name */
1921 FALSE
, /* partial_inplace */
1922 0xffffffff, /* src_mask */
1923 0xffffffff, /* dst_mask */
1924 FALSE
), /* pcrel_offset */
1926 /* Relax hint for conditional call sequence. */
1927 HOWTO (R_NDS32_LONGCALL6
, /* type */
1929 2, /* size (0 = byte, 1 = short, 2 = long) */
1931 FALSE
, /* pc_relative */
1933 complain_overflow_dont
, /* complain_on_overflow */
1934 nds32_elf_ignore_reloc
, /* special_function */
1935 "R_NDS32_LONGCALL6", /* name */
1936 FALSE
, /* partial_inplace */
1937 0xffffffff, /* src_mask */
1938 0xffffffff, /* dst_mask */
1939 FALSE
), /* pcrel_offset */
1941 /* Relax hint for unconditional branch sequence. */
1942 HOWTO (R_NDS32_LONGJUMP4
, /* type */
1944 2, /* size (0 = byte, 1 = short, 2 = long) */
1946 FALSE
, /* pc_relative */
1948 complain_overflow_dont
, /* complain_on_overflow */
1949 nds32_elf_ignore_reloc
, /* special_function */
1950 "R_NDS32_LONGJUMP4", /* name */
1951 FALSE
, /* partial_inplace */
1952 0xffffffff, /* src_mask */
1953 0xffffffff, /* dst_mask */
1954 FALSE
), /* pcrel_offset */
1956 /* Relax hint for conditional branch sequence. */
1957 HOWTO (R_NDS32_LONGJUMP5
, /* type */
1959 2, /* size (0 = byte, 1 = short, 2 = long) */
1961 FALSE
, /* pc_relative */
1963 complain_overflow_dont
, /* complain_on_overflow */
1964 nds32_elf_ignore_reloc
, /* special_function */
1965 "R_NDS32_LONGJUMP5", /* name */
1966 FALSE
, /* partial_inplace */
1967 0xffffffff, /* src_mask */
1968 0xffffffff, /* dst_mask */
1969 FALSE
), /* pcrel_offset */
1971 /* Relax hint for conditional branch sequence. */
1972 HOWTO (R_NDS32_LONGJUMP6
, /* type */
1974 2, /* size (0 = byte, 1 = short, 2 = long) */
1976 FALSE
, /* pc_relative */
1978 complain_overflow_dont
, /* complain_on_overflow */
1979 nds32_elf_ignore_reloc
, /* special_function */
1980 "R_NDS32_LONGJUMP6", /* name */
1981 FALSE
, /* partial_inplace */
1982 0xffffffff, /* src_mask */
1983 0xffffffff, /* dst_mask */
1984 FALSE
), /* pcrel_offset */
1986 /* Relax hint for conditional branch sequence. */
1987 HOWTO (R_NDS32_LONGJUMP7
, /* type */
1989 2, /* size (0 = byte, 1 = short, 2 = long) */
1991 FALSE
, /* pc_relative */
1993 complain_overflow_dont
, /* complain_on_overflow */
1994 nds32_elf_ignore_reloc
, /* special_function */
1995 "R_NDS32_LONGJUMP7", /* name */
1996 FALSE
, /* partial_inplace */
1997 0xffffffff, /* src_mask */
1998 0xffffffff, /* dst_mask */
1999 FALSE
), /* pcrel_offset */
2002 /* Relocations used for relaxation. */
2003 static reloc_howto_type nds32_elf_relax_howto_table
[] =
2005 HOWTO (R_NDS32_RELAX_ENTRY
, /* type */
2007 2, /* size (0 = byte, 1 = short, 2 = long) */
2009 FALSE
, /* pc_relative */
2011 complain_overflow_dont
,/* complain_on_overflow */
2012 nds32_elf_ignore_reloc
,/* special_function */
2013 "R_NDS32_RELAX_ENTRY", /* name */
2014 FALSE
, /* partial_inplace */
2015 0xffffffff, /* src_mask */
2016 0xffffffff, /* dst_mask */
2017 FALSE
), /* pcrel_offset */
2018 HOWTO (R_NDS32_GOT_SUFF
, /* type */
2020 2, /* size (0 = byte, 1 = short, 2 = long) */
2022 FALSE
, /* pc_relative */
2024 complain_overflow_dont
,/* complain_on_overflow */
2025 nds32_elf_ignore_reloc
,/* special_function */
2026 "R_NDS32_GOT_SUFF", /* name */
2027 FALSE
, /* partial_inplace */
2028 0xffffffff, /* src_mask */
2029 0xffffffff, /* dst_mask */
2030 FALSE
), /* pcrel_offset */
2031 HOWTO (R_NDS32_GOTOFF_SUFF
, /* type */
2033 2, /* size (0 = byte, 1 = short, 2 = long) */
2035 FALSE
, /* pc_relative */
2037 complain_overflow_bitfield
, /* complain_on_overflow */
2038 nds32_elf_ignore_reloc
,/* special_function */
2039 "R_NDS32_GOTOFF_SUFF", /* name */
2040 FALSE
, /* partial_inplace */
2041 0xffffffff, /* src_mask */
2042 0xffffffff, /* dst_mask */
2043 FALSE
), /* pcrel_offset */
2044 HOWTO (R_NDS32_PLT_GOT_SUFF
, /* type */
2046 2, /* size (0 = byte, 1 = short, 2 = long) */
2048 FALSE
, /* pc_relative */
2050 complain_overflow_dont
,/* complain_on_overflow */
2051 nds32_elf_ignore_reloc
,/* special_function */
2052 "R_NDS32_PLT_GOT_SUFF",/* name */
2053 FALSE
, /* partial_inplace */
2054 0xffffffff, /* src_mask */
2055 0xffffffff, /* dst_mask */
2056 FALSE
), /* pcrel_offset */
2057 HOWTO (R_NDS32_MULCALL_SUFF
, /* type */
2059 2, /* size (0 = byte, 1 = short, 2 = long) */
2061 FALSE
, /* pc_relative */
2063 complain_overflow_dont
,/* complain_on_overflow */
2064 nds32_elf_ignore_reloc
,/* special_function */
2065 "R_NDS32_MULCALL_SUFF",/* name */
2066 FALSE
, /* partial_inplace */
2067 0xffffffff, /* src_mask */
2068 0xffffffff, /* dst_mask */
2069 FALSE
), /* pcrel_offset */
2070 HOWTO (R_NDS32_PTR
, /* type */
2072 2, /* size (0 = byte, 1 = short, 2 = long) */
2074 FALSE
, /* pc_relative */
2076 complain_overflow_dont
,/* complain_on_overflow */
2077 nds32_elf_ignore_reloc
,/* special_function */
2078 "R_NDS32_PTR", /* name */
2079 FALSE
, /* partial_inplace */
2080 0xffffffff, /* src_mask */
2081 0xffffffff, /* dst_mask */
2082 FALSE
), /* pcrel_offset */
2083 HOWTO (R_NDS32_PTR_COUNT
, /* type */
2085 2, /* size (0 = byte, 1 = short, 2 = long) */
2087 FALSE
, /* pc_relative */
2089 complain_overflow_dont
,/* complain_on_overflow */
2090 nds32_elf_ignore_reloc
,/* special_function */
2091 "R_NDS32_PTR_COUNT", /* name */
2092 FALSE
, /* partial_inplace */
2093 0xffffffff, /* src_mask */
2094 0xffffffff, /* dst_mask */
2095 FALSE
), /* pcrel_offset */
2096 HOWTO (R_NDS32_PTR_RESOLVED
, /* 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_PTR_RESOLVED",/* name */
2105 FALSE
, /* partial_inplace */
2106 0xffffffff, /* src_mask */
2107 0xffffffff, /* dst_mask */
2108 FALSE
), /* pcrel_offset */
2109 HOWTO (R_NDS32_PLTBLOCK
, /* 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_PLTBLOCK", /* name */
2118 FALSE
, /* partial_inplace */
2119 0xffffffff, /* src_mask */
2120 0xffffffff, /* dst_mask */
2121 FALSE
), /* pcrel_offset */
2122 HOWTO (R_NDS32_RELAX_REGION_BEGIN
, /* type */
2124 2, /* size (0 = byte, 1 = short, 2 = long) */
2126 FALSE
, /* pc_relative */
2128 complain_overflow_dont
,/* complain_on_overflow */
2129 nds32_elf_ignore_reloc
,/* special_function */
2130 "R_NDS32_RELAX_REGION_BEGIN", /* name */
2131 FALSE
, /* partial_inplace */
2132 0xffffffff, /* src_mask */
2133 0xffffffff, /* dst_mask */
2134 FALSE
), /* pcrel_offset */
2135 HOWTO (R_NDS32_RELAX_REGION_END
, /* 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_RELAX_REGION_END", /* name */
2144 FALSE
, /* partial_inplace */
2145 0xffffffff, /* src_mask */
2146 0xffffffff, /* dst_mask */
2147 FALSE
), /* pcrel_offset */
2148 HOWTO (R_NDS32_MINUEND
, /* 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_MINUEND", /* name */
2157 FALSE
, /* partial_inplace */
2158 0xffffffff, /* src_mask */
2159 0xffffffff, /* dst_mask */
2160 FALSE
), /* pcrel_offset */
2161 HOWTO (R_NDS32_SUBTRAHEND
, /* 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_SUBTRAHEND", /* name */
2170 FALSE
, /* partial_inplace */
2171 0xffffffff, /* src_mask */
2172 0xffffffff, /* dst_mask */
2173 FALSE
), /* pcrel_offset */
2174 HOWTO (R_NDS32_DIFF8
, /* type */
2176 0, /* 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_DIFF8", /* name */
2183 FALSE
, /* partial_inplace */
2184 0x000000ff, /* src_mask */
2185 0x000000ff, /* dst_mask */
2186 FALSE
), /* pcrel_offset */
2187 HOWTO (R_NDS32_DIFF16
, /* type */
2189 1, /* 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_DIFF16", /* name */
2196 FALSE
, /* partial_inplace */
2197 0x0000ffff, /* src_mask */
2198 0x0000ffff, /* dst_mask */
2199 FALSE
), /* pcrel_offset */
2200 HOWTO (R_NDS32_DIFF32
, /* 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_DIFF32", /* name */
2209 FALSE
, /* partial_inplace */
2210 0xffffffff, /* src_mask */
2211 0xffffffff, /* dst_mask */
2212 FALSE
), /* pcrel_offset */
2213 HOWTO (R_NDS32_DIFF_ULEB128
, /* type */
2215 0, /* 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_DIFF_ULEB128",/* name */
2222 FALSE
, /* partial_inplace */
2223 0xffffffff, /* src_mask */
2224 0xffffffff, /* dst_mask */
2225 FALSE
), /* pcrel_offset */
2226 HOWTO (R_NDS32_DATA
, /* 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_DATA", /* name */
2235 FALSE
, /* partial_inplace */
2236 0xffffffff, /* src_mask */
2237 0xffffffff, /* dst_mask */
2238 FALSE
), /* pcrel_offset */
2239 HOWTO (R_NDS32_TRAN
, /* 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_TRAN", /* name */
2248 FALSE
, /* partial_inplace */
2249 0xffffffff, /* src_mask */
2250 0xffffffff, /* dst_mask */
2251 FALSE
), /* pcrel_offset */
2252 HOWTO (R_NDS32_TLS_LE_ADD
, /* 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_TLS_LE_ADD", /* name */
2261 FALSE
, /* partial_inplace */
2262 0xffffffff, /* src_mask */
2263 0xffffffff, /* dst_mask */
2264 FALSE
), /* pcrel_offset */
2265 HOWTO (R_NDS32_TLS_LE_LS
, /* type */
2267 2, /* 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_TLS_LE_LS", /* name */
2274 FALSE
, /* partial_inplace */
2275 0xffffffff, /* src_mask */
2276 0xffffffff, /* dst_mask */
2277 FALSE
), /* pcrel_offset */
2278 HOWTO (R_NDS32_EMPTY
, /* type */
2280 2, /* 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_EMPTY", /* name */
2287 FALSE
, /* partial_inplace */
2288 0xffffffff, /* src_mask */
2289 0xffffffff, /* dst_mask */
2290 FALSE
), /* pcrel_offset */
2294 /* nds32_insertion_sort sorts an array with nmemb elements of size size.
2295 This prototype is the same as qsort (). */
2298 nds32_insertion_sort (void *base
, size_t nmemb
, size_t size
,
2299 int (*compar
) (const void *lhs
, const void *rhs
))
2301 char *ptr
= (char *) base
;
2303 char *tmp
= xmalloc (size
);
2305 /* If i is less than j, i is inserted before j.
2307 |---- j ----- i --------------|
2312 for (i
= 1; i
< (int) nmemb
; i
++)
2314 for (j
= (i
- 1); j
>= 0; j
--)
2315 if (compar (ptr
+ i
* size
, ptr
+ j
* size
) >= 0)
2321 continue; /* i is in order. */
2323 memcpy (tmp
, ptr
+ i
* size
, size
);
2324 memmove (ptr
+ (j
+ 1) * size
, ptr
+ j
* size
, (i
- j
) * size
);
2325 memcpy (ptr
+ j
* size
, tmp
, size
);
2330 /* Sort relocation by r_offset.
2332 We didn't use qsort () in stdlib, because quick-sort is not a stable sorting
2333 algorithm. Relocations at the same r_offset must keep their order.
2334 For example, RELAX_ENTRY must be the very first relocation entry.
2336 Currently, this function implements insertion-sort.
2338 FIXME: If we already sort them in assembler, why bother sort them
2342 compar_reloc (const void *lhs
, const void *rhs
)
2344 const Elf_Internal_Rela
*l
= (const Elf_Internal_Rela
*) lhs
;
2345 const Elf_Internal_Rela
*r
= (const Elf_Internal_Rela
*) rhs
;
2347 if (l
->r_offset
> r
->r_offset
)
2349 else if (l
->r_offset
== r
->r_offset
)
2355 /* Functions listed below are only used for old relocs.
2356 * nds32_elf_9_pcrel_reloc
2357 * nds32_elf_do_9_pcrel_reloc
2358 * nds32_elf_hi20_reloc
2359 * nds32_elf_relocate_hi20
2360 * nds32_elf_lo12_reloc
2361 * nds32_elf_sda15_reloc
2362 * nds32_elf_generic_reloc
2365 /* Handle the R_NDS32_9_PCREL & R_NDS32_9_PCREL_RELA reloc. */
2367 static bfd_reloc_status_type
2368 nds32_elf_9_pcrel_reloc (bfd
*abfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2369 void *data
, asection
*input_section
, bfd
*output_bfd
,
2370 char **error_message ATTRIBUTE_UNUSED
)
2372 /* This part is from bfd_elf_generic_reloc. */
2373 if (output_bfd
!= (bfd
*) NULL
2374 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2375 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2377 reloc_entry
->address
+= input_section
->output_offset
;
2378 return bfd_reloc_ok
;
2381 if (output_bfd
!= NULL
)
2383 /* FIXME: See bfd_perform_relocation. Is this right? */
2384 return bfd_reloc_continue
;
2387 return nds32_elf_do_9_pcrel_reloc (abfd
, reloc_entry
->howto
,
2389 data
, reloc_entry
->address
,
2392 + symbol
->section
->output_section
->vma
2393 + symbol
->section
->output_offset
),
2394 reloc_entry
->addend
);
2397 /* Utility to actually perform an R_NDS32_9_PCREL reloc. */
2398 #define N_ONES(n) (((((bfd_vma) 1 << ((n) - 1)) - 1) << 1) | 1)
2400 static bfd_reloc_status_type
2401 nds32_elf_do_9_pcrel_reloc (bfd
*abfd
, reloc_howto_type
*howto
,
2402 asection
*input_section
, bfd_byte
*data
,
2404 asection
*symbol_section ATTRIBUTE_UNUSED
,
2405 bfd_vma symbol_value
, bfd_vma addend
)
2407 bfd_signed_vma relocation
;
2409 bfd_reloc_status_type status
;
2411 /* Sanity check the address (offset in section). */
2412 if (offset
> bfd_get_section_limit (abfd
, input_section
))
2413 return bfd_reloc_outofrange
;
2415 relocation
= symbol_value
+ addend
;
2416 /* Make it pc relative. */
2417 relocation
-= (input_section
->output_section
->vma
2418 + input_section
->output_offset
);
2419 /* These jumps mask off the lower two bits of the current address
2420 before doing pcrel calculations. */
2421 relocation
-= (offset
& -(bfd_vma
) 2);
2423 if (relocation
< -ACCURATE_8BIT_S1
|| relocation
>= ACCURATE_8BIT_S1
)
2424 status
= bfd_reloc_overflow
;
2426 status
= bfd_reloc_ok
;
2428 x
= bfd_getb16 (data
+ offset
);
2430 relocation
>>= howto
->rightshift
;
2431 relocation
<<= howto
->bitpos
;
2432 x
= (x
& ~howto
->dst_mask
)
2433 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
);
2435 bfd_putb16 ((bfd_vma
) x
, data
+ offset
);
2440 /* Handle the R_NDS32_HI20_[SU]LO relocs.
2441 HI20_SLO is for the add3 and load/store with displacement instructions.
2442 HI20 is for the or3 instruction.
2443 For R_NDS32_HI20_SLO, the lower 16 bits are sign extended when added to
2444 the high 16 bytes so if the lower 16 bits are negative (bit 15 == 1) then
2445 we must add one to the high 16 bytes (which will get subtracted off when
2446 the low 16 bits are added).
2447 These relocs have to be done in combination with an R_NDS32_LO12 reloc
2448 because there is a carry from the LO12 to the HI20. Here we just save
2449 the information we need; we do the actual relocation when we see the LO12.
2450 This code is copied from the elf32-mips.c. We also support an arbitrary
2451 number of HI20 relocs to be associated with a single LO12 reloc. The
2452 assembler sorts the relocs to ensure each HI20 immediately precedes its
2453 LO12. However if there are multiple copies, the assembler may not find
2454 the real LO12 so it picks the first one it finds. */
2458 struct nds32_hi20
*next
;
2463 static struct nds32_hi20
*nds32_hi20_list
;
2465 static bfd_reloc_status_type
2466 nds32_elf_hi20_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2467 asymbol
*symbol
, void *data
, asection
*input_section
,
2468 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2470 bfd_reloc_status_type ret
;
2472 struct nds32_hi20
*n
;
2474 /* This part is from bfd_elf_generic_reloc.
2475 If we're relocating, and this an external symbol, we don't want
2476 to change anything. */
2477 if (output_bfd
!= (bfd
*) NULL
2478 && (symbol
->flags
& BSF_SECTION_SYM
) == 0 && reloc_entry
->addend
== 0)
2480 reloc_entry
->address
+= input_section
->output_offset
;
2481 return bfd_reloc_ok
;
2484 /* Sanity check the address (offset in section). */
2485 if (reloc_entry
->address
> bfd_get_section_limit (abfd
, input_section
))
2486 return bfd_reloc_outofrange
;
2489 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2490 ret
= bfd_reloc_undefined
;
2492 if (bfd_is_com_section (symbol
->section
))
2495 relocation
= symbol
->value
;
2497 relocation
+= symbol
->section
->output_section
->vma
;
2498 relocation
+= symbol
->section
->output_offset
;
2499 relocation
+= reloc_entry
->addend
;
2501 /* Save the information, and let LO12 do the actual relocation. */
2502 n
= (struct nds32_hi20
*) bfd_malloc ((bfd_size_type
) sizeof *n
);
2504 return bfd_reloc_outofrange
;
2506 n
->addr
= (bfd_byte
*) data
+ reloc_entry
->address
;
2507 n
->addend
= relocation
;
2508 n
->next
= nds32_hi20_list
;
2509 nds32_hi20_list
= n
;
2511 if (output_bfd
!= (bfd
*) NULL
)
2512 reloc_entry
->address
+= input_section
->output_offset
;
2517 /* Handle an NDS32 ELF HI20 reloc. */
2520 nds32_elf_relocate_hi20 (bfd
*input_bfd ATTRIBUTE_UNUSED
,
2521 int type ATTRIBUTE_UNUSED
, Elf_Internal_Rela
*relhi
,
2522 Elf_Internal_Rela
*rello
, bfd_byte
*contents
,
2528 insn
= bfd_getb32 (contents
+ relhi
->r_offset
);
2530 addlo
= bfd_getb32 (contents
+ rello
->r_offset
);
2533 addend
+= ((insn
& 0xfffff) << 20) + addlo
;
2535 insn
= (insn
& 0xfff00000) | ((addend
>> 12) & 0xfffff);
2536 bfd_putb32 (insn
, contents
+ relhi
->r_offset
);
2539 /* Do an R_NDS32_LO12 relocation. This is a straightforward 12 bit
2540 inplace relocation; this function exists in order to do the
2541 R_NDS32_HI20_[SU]LO relocation described above. */
2543 static bfd_reloc_status_type
2544 nds32_elf_lo12_reloc (bfd
*input_bfd
, arelent
*reloc_entry
, asymbol
*symbol
,
2545 void *data
, asection
*input_section
, bfd
*output_bfd
,
2546 char **error_message
)
2548 /* This part is from bfd_elf_generic_reloc.
2549 If we're relocating, and this an external symbol, we don't want
2550 to change anything. */
2551 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2552 && reloc_entry
->addend
== 0)
2554 reloc_entry
->address
+= input_section
->output_offset
;
2555 return bfd_reloc_ok
;
2558 if (nds32_hi20_list
!= NULL
)
2560 struct nds32_hi20
*l
;
2562 l
= nds32_hi20_list
;
2567 unsigned long vallo
;
2568 struct nds32_hi20
*next
;
2570 /* Do the HI20 relocation. Note that we actually don't need
2571 to know anything about the LO12 itself, except where to
2572 find the low 12 bits of the addend needed by the LO12. */
2573 insn
= bfd_getb32 (l
->addr
);
2574 vallo
= bfd_getb32 ((bfd_byte
*) data
+ reloc_entry
->address
);
2576 switch (reloc_entry
->howto
->type
)
2578 case R_NDS32_LO12S3
:
2582 case R_NDS32_LO12S2
:
2586 case R_NDS32_LO12S1
:
2590 case R_NDS32_LO12S0
:
2595 val
= ((insn
& 0xfffff) << 12) + vallo
;
2598 insn
= (insn
& ~(bfd_vma
) 0xfffff) | ((val
>> 12) & 0xfffff);
2599 bfd_putb32 ((bfd_vma
) insn
, l
->addr
);
2606 nds32_hi20_list
= NULL
;
2609 /* Now do the LO12 reloc in the usual way.
2610 ??? It would be nice to call bfd_elf_generic_reloc here,
2611 but we have partial_inplace set. bfd_elf_generic_reloc will
2612 pass the handling back to bfd_install_relocation which will install
2613 a section relative addend which is wrong. */
2614 return nds32_elf_generic_reloc (input_bfd
, reloc_entry
, symbol
, data
,
2615 input_section
, output_bfd
, error_message
);
2618 /* Do generic partial_inplace relocation.
2619 This is a local replacement for bfd_elf_generic_reloc. */
2621 static bfd_reloc_status_type
2622 nds32_elf_generic_reloc (bfd
*input_bfd
, arelent
*reloc_entry
,
2623 asymbol
*symbol
, void *data
, asection
*input_section
,
2624 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2626 bfd_reloc_status_type ret
;
2628 bfd_byte
*inplace_address
;
2630 /* This part is from bfd_elf_generic_reloc.
2631 If we're relocating, and this an external symbol, we don't want
2632 to change anything. */
2633 if (output_bfd
!= NULL
&& (symbol
->flags
& BSF_SECTION_SYM
) == 0
2634 && reloc_entry
->addend
== 0)
2636 reloc_entry
->address
+= input_section
->output_offset
;
2637 return bfd_reloc_ok
;
2640 /* Now do the reloc in the usual way.
2641 ??? It would be nice to call bfd_elf_generic_reloc here,
2642 but we have partial_inplace set. bfd_elf_generic_reloc will
2643 pass the handling back to bfd_install_relocation which will install
2644 a section relative addend which is wrong. */
2646 /* Sanity check the address (offset in section). */
2647 if (reloc_entry
->address
> bfd_get_section_limit (input_bfd
, input_section
))
2648 return bfd_reloc_outofrange
;
2651 if (bfd_is_und_section (symbol
->section
) && output_bfd
== (bfd
*) NULL
)
2652 ret
= bfd_reloc_undefined
;
2654 if (bfd_is_com_section (symbol
->section
) || output_bfd
!= (bfd
*) NULL
)
2657 relocation
= symbol
->value
;
2659 /* Only do this for a final link. */
2660 if (output_bfd
== (bfd
*) NULL
)
2662 relocation
+= symbol
->section
->output_section
->vma
;
2663 relocation
+= symbol
->section
->output_offset
;
2666 relocation
+= reloc_entry
->addend
;
2667 switch (reloc_entry
->howto
->type
)
2669 case R_NDS32_LO12S3
:
2673 case R_NDS32_LO12S2
:
2677 case R_NDS32_LO12S1
:
2681 case R_NDS32_LO12S0
:
2687 inplace_address
= (bfd_byte
*) data
+ reloc_entry
->address
;
2690 x = ((x & ~reloc_entry->howto->dst_mask) | \
2691 (((x & reloc_entry->howto->src_mask) + relocation) & \
2692 reloc_entry->howto->dst_mask))
2694 switch (reloc_entry
->howto
->size
)
2698 short x
= bfd_getb16 (inplace_address
);
2701 bfd_putb16 ((bfd_vma
) x
, inplace_address
);
2706 unsigned long x
= bfd_getb32 (inplace_address
);
2709 bfd_putb32 ((bfd_vma
) x
, inplace_address
);
2716 if (output_bfd
!= (bfd
*) NULL
)
2717 reloc_entry
->address
+= input_section
->output_offset
;
2722 /* Handle the R_NDS32_SDA15 reloc.
2723 This reloc is used to compute the address of objects in the small data area
2724 and to perform loads and stores from that area.
2725 The lower 15 bits are sign extended and added to the register specified
2726 in the instruction, which is assumed to point to _SDA_BASE_.
2728 Since the lower 15 bits offset is left-shifted 0, 1 or 2 bits depending on
2729 the access size, this must be taken care of. */
2731 static bfd_reloc_status_type
2732 nds32_elf_sda15_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2733 asymbol
*symbol
, void *data ATTRIBUTE_UNUSED
,
2734 asection
*input_section
, bfd
*output_bfd
,
2735 char **error_message ATTRIBUTE_UNUSED
)
2737 /* This part is from bfd_elf_generic_reloc. */
2738 if (output_bfd
!= (bfd
*) NULL
2739 && (symbol
->flags
& BSF_SECTION_SYM
) == 0
2740 && (!reloc_entry
->howto
->partial_inplace
|| reloc_entry
->addend
== 0))
2742 reloc_entry
->address
+= input_section
->output_offset
;
2743 return bfd_reloc_ok
;
2746 if (output_bfd
!= NULL
)
2748 /* FIXME: See bfd_perform_relocation. Is this right? */
2749 return bfd_reloc_continue
;
2752 /* FIXME: not sure what to do here yet. But then again, the linker
2753 may never call us. */
2757 /* nds32_elf_ignore_reloc is the special function for
2758 relocation types which don't need to be relocated
2759 like relaxation relocation types.
2760 This function simply return bfd_reloc_ok when it is
2763 static bfd_reloc_status_type
2764 nds32_elf_ignore_reloc (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*reloc_entry
,
2765 asymbol
*symbol ATTRIBUTE_UNUSED
,
2766 void *data ATTRIBUTE_UNUSED
, asection
*input_section
,
2767 bfd
*output_bfd
, char **error_message ATTRIBUTE_UNUSED
)
2769 if (output_bfd
!= NULL
)
2770 reloc_entry
->address
+= input_section
->output_offset
;
2772 return bfd_reloc_ok
;
2776 /* Map BFD reloc types to NDS32 ELF reloc types. */
2778 struct nds32_reloc_map_entry
2780 bfd_reloc_code_real_type bfd_reloc_val
;
2781 unsigned char elf_reloc_val
;
2784 static const struct nds32_reloc_map_entry nds32_reloc_map
[] =
2786 {BFD_RELOC_NONE
, R_NDS32_NONE
},
2787 {BFD_RELOC_16
, R_NDS32_16_RELA
},
2788 {BFD_RELOC_32
, R_NDS32_32_RELA
},
2789 {BFD_RELOC_NDS32_20
, R_NDS32_20_RELA
},
2790 {BFD_RELOC_NDS32_5
, R_NDS32_5_RELA
},
2791 {BFD_RELOC_NDS32_9_PCREL
, R_NDS32_9_PCREL_RELA
},
2792 {BFD_RELOC_NDS32_WORD_9_PCREL
, R_NDS32_WORD_9_PCREL_RELA
},
2793 {BFD_RELOC_NDS32_15_PCREL
, R_NDS32_15_PCREL_RELA
},
2794 {BFD_RELOC_NDS32_17_PCREL
, R_NDS32_17_PCREL_RELA
},
2795 {BFD_RELOC_NDS32_25_PCREL
, R_NDS32_25_PCREL_RELA
},
2796 {BFD_RELOC_NDS32_10_UPCREL
, R_NDS32_10_UPCREL_RELA
},
2797 {BFD_RELOC_NDS32_HI20
, R_NDS32_HI20_RELA
},
2798 {BFD_RELOC_NDS32_LO12S3
, R_NDS32_LO12S3_RELA
},
2799 {BFD_RELOC_NDS32_LO12S2
, R_NDS32_LO12S2_RELA
},
2800 {BFD_RELOC_NDS32_LO12S1
, R_NDS32_LO12S1_RELA
},
2801 {BFD_RELOC_NDS32_LO12S0
, R_NDS32_LO12S0_RELA
},
2802 {BFD_RELOC_NDS32_LO12S0_ORI
, R_NDS32_LO12S0_ORI_RELA
},
2803 {BFD_RELOC_NDS32_SDA15S3
, R_NDS32_SDA15S3_RELA
},
2804 {BFD_RELOC_NDS32_SDA15S2
, R_NDS32_SDA15S2_RELA
},
2805 {BFD_RELOC_NDS32_SDA15S1
, R_NDS32_SDA15S1_RELA
},
2806 {BFD_RELOC_NDS32_SDA15S0
, R_NDS32_SDA15S0_RELA
},
2807 {BFD_RELOC_VTABLE_INHERIT
, R_NDS32_RELA_GNU_VTINHERIT
},
2808 {BFD_RELOC_VTABLE_ENTRY
, R_NDS32_RELA_GNU_VTENTRY
},
2810 {BFD_RELOC_NDS32_GOT20
, R_NDS32_GOT20
},
2811 {BFD_RELOC_NDS32_9_PLTREL
, R_NDS32_9_PLTREL
},
2812 {BFD_RELOC_NDS32_25_PLTREL
, R_NDS32_25_PLTREL
},
2813 {BFD_RELOC_NDS32_COPY
, R_NDS32_COPY
},
2814 {BFD_RELOC_NDS32_GLOB_DAT
, R_NDS32_GLOB_DAT
},
2815 {BFD_RELOC_NDS32_JMP_SLOT
, R_NDS32_JMP_SLOT
},
2816 {BFD_RELOC_NDS32_RELATIVE
, R_NDS32_RELATIVE
},
2817 {BFD_RELOC_NDS32_GOTOFF
, R_NDS32_GOTOFF
},
2818 {BFD_RELOC_NDS32_GOTPC20
, R_NDS32_GOTPC20
},
2819 {BFD_RELOC_NDS32_GOT_HI20
, R_NDS32_GOT_HI20
},
2820 {BFD_RELOC_NDS32_GOT_LO12
, R_NDS32_GOT_LO12
},
2821 {BFD_RELOC_NDS32_GOT_LO15
, R_NDS32_GOT_LO15
},
2822 {BFD_RELOC_NDS32_GOT_LO19
, R_NDS32_GOT_LO19
},
2823 {BFD_RELOC_NDS32_GOTPC_HI20
, R_NDS32_GOTPC_HI20
},
2824 {BFD_RELOC_NDS32_GOTPC_LO12
, R_NDS32_GOTPC_LO12
},
2825 {BFD_RELOC_NDS32_GOTOFF_HI20
, R_NDS32_GOTOFF_HI20
},
2826 {BFD_RELOC_NDS32_GOTOFF_LO12
, R_NDS32_GOTOFF_LO12
},
2827 {BFD_RELOC_NDS32_GOTOFF_LO15
, R_NDS32_GOTOFF_LO15
},
2828 {BFD_RELOC_NDS32_GOTOFF_LO19
, R_NDS32_GOTOFF_LO19
},
2829 {BFD_RELOC_NDS32_INSN16
, R_NDS32_INSN16
},
2830 {BFD_RELOC_NDS32_LABEL
, R_NDS32_LABEL
},
2831 {BFD_RELOC_NDS32_LONGCALL1
, R_NDS32_LONGCALL1
},
2832 {BFD_RELOC_NDS32_LONGCALL2
, R_NDS32_LONGCALL2
},
2833 {BFD_RELOC_NDS32_LONGCALL3
, R_NDS32_LONGCALL3
},
2834 {BFD_RELOC_NDS32_LONGCALL4
, R_NDS32_LONGCALL4
},
2835 {BFD_RELOC_NDS32_LONGCALL5
, R_NDS32_LONGCALL5
},
2836 {BFD_RELOC_NDS32_LONGCALL6
, R_NDS32_LONGCALL6
},
2837 {BFD_RELOC_NDS32_LONGJUMP1
, R_NDS32_LONGJUMP1
},
2838 {BFD_RELOC_NDS32_LONGJUMP2
, R_NDS32_LONGJUMP2
},
2839 {BFD_RELOC_NDS32_LONGJUMP3
, R_NDS32_LONGJUMP3
},
2840 {BFD_RELOC_NDS32_LONGJUMP4
, R_NDS32_LONGJUMP4
},
2841 {BFD_RELOC_NDS32_LONGJUMP5
, R_NDS32_LONGJUMP5
},
2842 {BFD_RELOC_NDS32_LONGJUMP6
, R_NDS32_LONGJUMP6
},
2843 {BFD_RELOC_NDS32_LONGJUMP7
, R_NDS32_LONGJUMP7
},
2844 {BFD_RELOC_NDS32_LOADSTORE
, R_NDS32_LOADSTORE
},
2845 {BFD_RELOC_NDS32_9_FIXED
, R_NDS32_9_FIXED_RELA
},
2846 {BFD_RELOC_NDS32_15_FIXED
, R_NDS32_15_FIXED_RELA
},
2847 {BFD_RELOC_NDS32_17_FIXED
, R_NDS32_17_FIXED_RELA
},
2848 {BFD_RELOC_NDS32_25_FIXED
, R_NDS32_25_FIXED_RELA
},
2849 {BFD_RELOC_NDS32_PLTREL_HI20
, R_NDS32_PLTREL_HI20
},
2850 {BFD_RELOC_NDS32_PLTREL_LO12
, R_NDS32_PLTREL_LO12
},
2851 {BFD_RELOC_NDS32_PLT_GOTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
},
2852 {BFD_RELOC_NDS32_PLT_GOTREL_LO12
, R_NDS32_PLT_GOTREL_LO12
},
2853 {BFD_RELOC_NDS32_PLT_GOTREL_LO15
, R_NDS32_PLT_GOTREL_LO15
},
2854 {BFD_RELOC_NDS32_PLT_GOTREL_LO19
, R_NDS32_PLT_GOTREL_LO19
},
2855 {BFD_RELOC_NDS32_PLT_GOTREL_LO20
, R_NDS32_PLT_GOTREL_LO20
},
2856 {BFD_RELOC_NDS32_SDA12S2_DP
, R_NDS32_SDA12S2_DP_RELA
},
2857 {BFD_RELOC_NDS32_SDA12S2_SP
, R_NDS32_SDA12S2_SP_RELA
},
2858 {BFD_RELOC_NDS32_LO12S2_DP
, R_NDS32_LO12S2_DP_RELA
},
2859 {BFD_RELOC_NDS32_LO12S2_SP
, R_NDS32_LO12S2_SP_RELA
},
2860 {BFD_RELOC_NDS32_SDA16S3
, R_NDS32_SDA16S3_RELA
},
2861 {BFD_RELOC_NDS32_SDA17S2
, R_NDS32_SDA17S2_RELA
},
2862 {BFD_RELOC_NDS32_SDA18S1
, R_NDS32_SDA18S1_RELA
},
2863 {BFD_RELOC_NDS32_SDA19S0
, R_NDS32_SDA19S0_RELA
},
2864 {BFD_RELOC_NDS32_SDA_FP7U2_RELA
, R_NDS32_SDA_FP7U2_RELA
},
2865 {BFD_RELOC_NDS32_DWARF2_OP1
, R_NDS32_DWARF2_OP1_RELA
},
2866 {BFD_RELOC_NDS32_DWARF2_OP2
, R_NDS32_DWARF2_OP2_RELA
},
2867 {BFD_RELOC_NDS32_DWARF2_LEB
, R_NDS32_DWARF2_LEB_RELA
},
2868 {BFD_RELOC_NDS32_UPDATE_TA
, R_NDS32_UPDATE_TA_RELA
},
2869 {BFD_RELOC_NDS32_GOT_SUFF
, R_NDS32_GOT_SUFF
},
2870 {BFD_RELOC_NDS32_GOTOFF_SUFF
, R_NDS32_GOTOFF_SUFF
},
2871 {BFD_RELOC_NDS32_GOT15S2
, R_NDS32_GOT15S2_RELA
},
2872 {BFD_RELOC_NDS32_GOT17S2
, R_NDS32_GOT17S2_RELA
},
2873 {BFD_RELOC_NDS32_PTR
, R_NDS32_PTR
},
2874 {BFD_RELOC_NDS32_PTR_COUNT
, R_NDS32_PTR_COUNT
},
2875 {BFD_RELOC_NDS32_PLT_GOT_SUFF
, R_NDS32_PLT_GOT_SUFF
},
2876 {BFD_RELOC_NDS32_PTR_RESOLVED
, R_NDS32_PTR_RESOLVED
},
2877 {BFD_RELOC_NDS32_RELAX_ENTRY
, R_NDS32_RELAX_ENTRY
},
2878 {BFD_RELOC_NDS32_MULCALL_SUFF
, R_NDS32_MULCALL_SUFF
},
2879 {BFD_RELOC_NDS32_PLTBLOCK
, R_NDS32_PLTBLOCK
},
2880 {BFD_RELOC_NDS32_RELAX_REGION_BEGIN
, R_NDS32_RELAX_REGION_BEGIN
},
2881 {BFD_RELOC_NDS32_RELAX_REGION_END
, R_NDS32_RELAX_REGION_END
},
2882 {BFD_RELOC_NDS32_MINUEND
, R_NDS32_MINUEND
},
2883 {BFD_RELOC_NDS32_SUBTRAHEND
, R_NDS32_SUBTRAHEND
},
2884 {BFD_RELOC_NDS32_EMPTY
, R_NDS32_EMPTY
},
2886 {BFD_RELOC_NDS32_DIFF8
, R_NDS32_DIFF8
},
2887 {BFD_RELOC_NDS32_DIFF16
, R_NDS32_DIFF16
},
2888 {BFD_RELOC_NDS32_DIFF32
, R_NDS32_DIFF32
},
2889 {BFD_RELOC_NDS32_DIFF_ULEB128
, R_NDS32_DIFF_ULEB128
},
2890 {BFD_RELOC_NDS32_25_ABS
, R_NDS32_25_ABS_RELA
},
2891 {BFD_RELOC_NDS32_DATA
, R_NDS32_DATA
},
2892 {BFD_RELOC_NDS32_TRAN
, R_NDS32_TRAN
},
2893 {BFD_RELOC_NDS32_17IFC_PCREL
, R_NDS32_17IFC_PCREL_RELA
},
2894 {BFD_RELOC_NDS32_10IFCU_PCREL
, R_NDS32_10IFCU_PCREL_RELA
},
2895 {BFD_RELOC_NDS32_TLS_LE_HI20
, R_NDS32_TLS_LE_HI20
},
2896 {BFD_RELOC_NDS32_TLS_LE_LO12
, R_NDS32_TLS_LE_LO12
},
2897 {BFD_RELOC_NDS32_TLS_LE_ADD
, R_NDS32_TLS_LE_ADD
},
2898 {BFD_RELOC_NDS32_TLS_LE_LS
, R_NDS32_TLS_LE_LS
},
2899 {BFD_RELOC_NDS32_TLS_IE_HI20
, R_NDS32_TLS_IE_HI20
},
2900 {BFD_RELOC_NDS32_TLS_IE_LO12S2
, R_NDS32_TLS_IE_LO12S2
},
2901 {BFD_RELOC_NDS32_TLS_TPOFF
, R_NDS32_TLS_TPOFF
},
2902 {BFD_RELOC_NDS32_TLS_LE_20
, R_NDS32_TLS_LE_20
},
2903 {BFD_RELOC_NDS32_TLS_LE_15S0
, R_NDS32_TLS_LE_15S0
},
2904 {BFD_RELOC_NDS32_TLS_LE_15S1
, R_NDS32_TLS_LE_15S1
},
2905 {BFD_RELOC_NDS32_TLS_LE_15S2
, R_NDS32_TLS_LE_15S2
},
2910 static reloc_howto_type
*
2911 bfd_elf32_bfd_reloc_name_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2916 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_howto_table
); i
++)
2917 if (nds32_elf_howto_table
[i
].name
!= NULL
2918 && strcasecmp (nds32_elf_howto_table
[i
].name
, r_name
) == 0)
2919 return &nds32_elf_howto_table
[i
];
2921 for (i
= 0; i
< ARRAY_SIZE (nds32_elf_relax_howto_table
); i
++)
2922 if (nds32_elf_relax_howto_table
[i
].name
!= NULL
2923 && strcasecmp (nds32_elf_relax_howto_table
[i
].name
, r_name
) == 0)
2924 return &nds32_elf_relax_howto_table
[i
];
2929 static reloc_howto_type
*
2930 bfd_elf32_bfd_reloc_type_table_lookup (enum elf_nds32_reloc_type code
)
2932 if (code
< R_NDS32_RELAX_ENTRY
)
2934 BFD_ASSERT (code
< ARRAY_SIZE (nds32_elf_howto_table
));
2935 return &nds32_elf_howto_table
[code
];
2939 BFD_ASSERT ((size_t) (code
- R_NDS32_RELAX_ENTRY
)
2940 < ARRAY_SIZE (nds32_elf_relax_howto_table
));
2941 return &nds32_elf_relax_howto_table
[code
- R_NDS32_RELAX_ENTRY
];
2945 static reloc_howto_type
*
2946 bfd_elf32_bfd_reloc_type_lookup (bfd
*abfd ATTRIBUTE_UNUSED
,
2947 bfd_reloc_code_real_type code
)
2951 for (i
= 0; i
< ARRAY_SIZE (nds32_reloc_map
); i
++)
2953 if (nds32_reloc_map
[i
].bfd_reloc_val
== code
)
2954 return bfd_elf32_bfd_reloc_type_table_lookup
2955 (nds32_reloc_map
[i
].elf_reloc_val
);
2961 /* Set the howto pointer for an NDS32 ELF reloc. */
2964 nds32_info_to_howto_rel (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
2965 Elf_Internal_Rela
*dst
)
2967 enum elf_nds32_reloc_type r_type
;
2969 r_type
= ELF32_R_TYPE (dst
->r_info
);
2970 if (r_type
> R_NDS32_GNU_VTENTRY
)
2972 _bfd_error_handler (_("%B: invalid NDS32 reloc number: %d"), abfd
, r_type
);
2975 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
2979 nds32_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
, arelent
*cache_ptr
,
2980 Elf_Internal_Rela
*dst
)
2982 BFD_ASSERT ((ELF32_R_TYPE (dst
->r_info
) == R_NDS32_NONE
)
2983 || ((ELF32_R_TYPE (dst
->r_info
) > R_NDS32_GNU_VTENTRY
)
2984 && (ELF32_R_TYPE (dst
->r_info
) < R_NDS32_max
)));
2985 cache_ptr
->howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (dst
->r_info
));
2988 /* Support for core dump NOTE sections.
2989 Reference to include/linux/elfcore.h in Linux. */
2992 nds32_elf_grok_prstatus (bfd
*abfd
, Elf_Internal_Note
*note
)
2997 switch (note
->descsz
)
3000 /* Linux/NDS32 32-bit, ABI1 */
3003 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3006 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3014 /* Linux/NDS32 32-bit */
3017 elf_tdata (abfd
)->core
->signal
= bfd_get_16 (abfd
, note
->descdata
+ 12);
3020 elf_tdata (abfd
)->core
->pid
= bfd_get_32 (abfd
, note
->descdata
+ 24);
3031 /* Make a ".reg" section. */
3032 return _bfd_elfcore_make_pseudosection (abfd
, ".reg",
3033 size
, note
->descpos
+ offset
);
3037 nds32_elf_grok_psinfo (bfd
*abfd
, Elf_Internal_Note
*note
)
3039 switch (note
->descsz
)
3044 /* __kernel_uid_t, __kernel_gid_t are short on NDS32 platform. */
3045 elf_tdata (abfd
)->core
->program
=
3046 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 28, 16);
3047 elf_tdata (abfd
)->core
->command
=
3048 _bfd_elfcore_strndup (abfd
, note
->descdata
+ 44, 80);
3054 /* Note that for some reason, a spurious space is tacked
3055 onto the end of the args in some (at least one anyway)
3056 implementations, so strip it off if it exists. */
3058 char *command
= elf_tdata (abfd
)->core
->command
;
3059 int n
= strlen (command
);
3061 if (0 < n
&& command
[n
- 1] == ' ')
3062 command
[n
- 1] = '\0';
3068 /* Hook called by the linker routine which adds symbols from an object
3069 file. We must handle the special NDS32 section numbers here.
3070 We also keep watching for whether we need to create the sdata special
3074 nds32_elf_add_symbol_hook (bfd
*abfd
,
3075 struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
3076 Elf_Internal_Sym
*sym
,
3077 const char **namep ATTRIBUTE_UNUSED
,
3078 flagword
*flagsp ATTRIBUTE_UNUSED
,
3079 asection
**secp
, bfd_vma
*valp
)
3081 switch (sym
->st_shndx
)
3084 /* Common symbols less than the GP size are automatically
3085 treated as SHN_MIPS_SCOMMON symbols. */
3086 if (sym
->st_size
> elf_gp_size (abfd
)
3087 || ELF_ST_TYPE (sym
->st_info
) == STT_TLS
)
3090 /* st_value is the alignemnt constraint.
3091 That might be its actual size if it is an array or structure. */
3092 switch (sym
->st_value
)
3095 *secp
= bfd_make_section_old_way (abfd
, ".scommon_b");
3098 *secp
= bfd_make_section_old_way (abfd
, ".scommon_h");
3101 *secp
= bfd_make_section_old_way (abfd
, ".scommon_w");
3104 *secp
= bfd_make_section_old_way (abfd
, ".scommon_d");
3110 (*secp
)->flags
|= SEC_IS_COMMON
;
3111 *valp
= sym
->st_size
;
3119 /* This function can figure out the best location for a base register to access
3120 data relative to this base register
3122 sda_d0: size of first DOUBLE WORD data section
3123 sda_w0: size of first WORD data section
3124 sda_h0: size of first HALF WORD data section
3125 sda_b : size of BYTE data section
3126 sda_hi: size of second HALF WORD data section
3127 sda_w1: size of second WORD data section
3128 sda_d1: size of second DOUBLE WORD data section
3130 offset (always positive) from the beginning of sda_d0 if OK
3131 a negative error value if fail
3133 these 7 sections have to be located back to back if exist
3134 a pass in 0 value for non-existing section */
3136 /* Due to the interpretation of simm15 field of load/store depending on
3137 data accessing size, the organization of base register relative data shall
3138 like the following figure
3139 -------------------------------------------
3140 | DOUBLE WORD sized data (range +/- 128K)
3141 -------------------------------------------
3142 | WORD sized data (range +/- 64K)
3143 -------------------------------------------
3144 | HALF WORD sized data (range +/- 32K)
3145 -------------------------------------------
3146 | BYTE sized data (range +/- 16K)
3147 -------------------------------------------
3148 | HALF WORD sized data (range +/- 32K)
3149 -------------------------------------------
3150 | WORD sized data (range +/- 64K)
3151 -------------------------------------------
3152 | DOUBLE WORD sized data (range +/- 128K)
3153 -------------------------------------------
3154 Its base register shall be set to access these data freely. */
3156 /* We have to figure out the SDA_BASE value, so that we can adjust the
3157 symbol value correctly. We look up the symbol _SDA_BASE_ in the output
3158 BFD. If we can't find it, we're stuck. We cache it in the ELF
3159 target data. We don't need to adjust the symbol value for an
3160 external symbol if we are producing relocatable output. */
3162 static asection
*sda_rela_sec
= NULL
;
3164 #define SDA_SECTION_NUM 10
3166 static bfd_reloc_status_type
3167 nds32_elf_final_sda_base (bfd
*output_bfd
, struct bfd_link_info
*info
,
3168 bfd_vma
*psb
, bfd_boolean add_symbol
)
3171 struct elf_nds32_link_hash_table
*table
;
3172 struct bfd_link_hash_entry
*h
, *h2
;
3173 long unsigned int total
= 0;
3175 h
= bfd_link_hash_lookup (info
->hash
, "_SDA_BASE_", FALSE
, FALSE
, TRUE
);
3176 if (!h
|| (h
->type
!= bfd_link_hash_defined
&& h
->type
!= bfd_link_hash_defweak
))
3178 asection
*first
= NULL
, *final
= NULL
, *temp
;
3180 /* The first section must be 4-byte aligned to promise _SDA_BASE_ being
3181 4 byte-aligned. Therefore, it has to set the first section ".data"
3183 static const char sec_name
[SDA_SECTION_NUM
][10] =
3185 ".data", ".got", ".sdata_d", ".sdata_w", ".sdata_h", ".sdata_b",
3186 ".sbss_b", ".sbss_h", ".sbss_w", ".sbss_d"
3190 if (output_bfd
->sections
== NULL
)
3192 *psb
= elf_gp (output_bfd
);
3193 return bfd_reloc_ok
;
3196 /* Get the first and final section. */
3197 while (i
< sizeof (sec_name
) / sizeof (sec_name
[0]))
3199 temp
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3200 if (temp
&& !first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3202 if (temp
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3205 /* Summarize the sections in order to check if joining .bss. */
3206 if (temp
&& temp
->size
!= 0)
3207 total
+= temp
->size
;
3208 else if (temp
&& temp
->rawsize
!= 0)
3209 total
+= temp
->rawsize
;
3214 /* Check .bss size. */
3215 temp
= bfd_get_section_by_name (output_bfd
, ".bss");
3218 if (temp
->size
!= 0)
3219 total
+= temp
->size
;
3220 else if (temp
->rawsize
!= 0)
3221 total
+= temp
->rawsize
;
3223 if (total
< 0x80000)
3225 if (!first
&& (temp
->size
!= 0 || temp
->rawsize
!= 0))
3227 if ((temp
->size
!= 0 || temp
->rawsize
!= 0))
3234 /* The middle of data region. */
3235 sda_base
= final
->vma
/ 2 + final
->rawsize
/ 2 + first
->vma
/ 2;
3237 /* Find the section sda_base located. */
3239 while (i
< sizeof (sec_name
) / sizeof (sec_name
[0]))
3241 final
= bfd_get_section_by_name (output_bfd
, sec_name
[i
]);
3242 if (final
&& (final
->size
!= 0 || final
->rawsize
!= 0)
3243 && sda_base
>= final
->vma
)
3254 /* There is not any data section in output bfd, and set _SDA_BASE_ in
3255 first output section. */
3256 first
= output_bfd
->sections
;
3257 while (first
&& first
->size
== 0 && first
->rawsize
== 0)
3258 first
= first
->next
;
3261 *psb
= elf_gp (output_bfd
);
3262 return bfd_reloc_ok
;
3264 sda_base
= first
->vma
+ first
->rawsize
;
3267 sda_base
-= first
->vma
;
3268 sda_base
= sda_base
& (~7);
3270 if (!_bfd_generic_link_add_one_symbol
3271 (info
, output_bfd
, "_SDA_BASE_", BSF_GLOBAL
| BSF_WEAK
, first
,
3272 (bfd_vma
) sda_base
, (const char *) NULL
, FALSE
,
3273 get_elf_backend_data (output_bfd
)->collect
, &h
))
3276 sda_rela_sec
= first
;
3278 table
= nds32_elf_hash_table (info
);
3279 relax_fp_as_gp
= table
->relax_fp_as_gp
;
3282 h2
= bfd_link_hash_lookup (info
->hash
, FP_BASE_NAME
,
3283 FALSE
, FALSE
, FALSE
);
3284 /* Define a weak FP_BASE_NAME here to prevent the undefined symbol.
3285 And set FP equal to SDA_BASE to do relaxation for
3286 la $fp, _FP_BASE_. */
3287 if (!_bfd_generic_link_add_one_symbol
3288 (info
, output_bfd
, FP_BASE_NAME
, BSF_GLOBAL
| BSF_WEAK
,
3289 first
, (bfd_vma
) sda_base
, (const char *) NULL
,
3290 FALSE
, get_elf_backend_data (output_bfd
)->collect
, &h2
))
3295 if (add_symbol
== TRUE
)
3300 elf_gp (output_bfd
) = (h
->u
.def
.value
3301 + h
->u
.def
.section
->output_section
->vma
3302 + h
->u
.def
.section
->output_offset
);
3306 (*_bfd_error_handler
) (_("error: Can't find symbol: _SDA_BASE_."));
3307 return bfd_reloc_dangerous
;
3311 *psb
= h
->u
.def
.value
+ h
->u
.def
.section
->output_section
->vma
3312 + h
->u
.def
.section
->output_offset
;
3313 return bfd_reloc_ok
;
3317 /* Return size of a PLT entry. */
3318 #define elf_nds32_sizeof_plt(info) PLT_ENTRY_SIZE
3321 /* Create an entry in an nds32 ELF linker hash table. */
3323 static struct bfd_hash_entry
*
3324 nds32_elf_link_hash_newfunc (struct bfd_hash_entry
*entry
,
3325 struct bfd_hash_table
*table
,
3328 struct elf_nds32_link_hash_entry
*ret
;
3330 ret
= (struct elf_nds32_link_hash_entry
*) entry
;
3332 /* Allocate the structure if it has not already been allocated by a
3335 ret
= (struct elf_nds32_link_hash_entry
*)
3336 bfd_hash_allocate (table
, sizeof (struct elf_nds32_link_hash_entry
));
3339 return (struct bfd_hash_entry
*) ret
;
3341 /* Call the allocation method of the superclass. */
3342 ret
= (struct elf_nds32_link_hash_entry
*)
3343 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
);
3347 struct elf_nds32_link_hash_entry
*eh
;
3349 eh
= (struct elf_nds32_link_hash_entry
*) ret
;
3350 eh
->dyn_relocs
= NULL
;
3351 eh
->tls_type
= GOT_UNKNOWN
;
3354 return (struct bfd_hash_entry
*) ret
;
3357 /* Create an nds32 ELF linker hash table. */
3359 static struct bfd_link_hash_table
*
3360 nds32_elf_link_hash_table_create (bfd
*abfd
)
3362 struct elf_nds32_link_hash_table
*ret
;
3364 bfd_size_type amt
= sizeof (struct elf_nds32_link_hash_table
);
3366 ret
= (struct elf_nds32_link_hash_table
*) bfd_zmalloc (amt
);
3371 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
3372 nds32_elf_link_hash_newfunc
,
3373 sizeof (struct elf_nds32_link_hash_entry
),
3381 ret
->sgotplt
= NULL
;
3382 ret
->srelgot
= NULL
;
3384 ret
->srelplt
= NULL
;
3385 ret
->sdynbss
= NULL
;
3386 ret
->srelbss
= NULL
;
3387 ret
->sym_ld_script
= NULL
;
3388 ret
->ex9_export_file
= NULL
;
3389 ret
->ex9_import_file
= NULL
;
3391 return &ret
->root
.root
;
3394 /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up
3395 shortcuts to them in our hash table. */
3398 create_got_section (bfd
*dynobj
, struct bfd_link_info
*info
)
3400 struct elf_nds32_link_hash_table
*htab
;
3402 if (!_bfd_elf_create_got_section (dynobj
, info
))
3405 htab
= nds32_elf_hash_table (info
);
3406 htab
->sgot
= bfd_get_section_by_name (dynobj
, ".got");
3407 htab
->sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3408 if (!htab
->sgot
|| !htab
->sgotplt
)
3411 /* _bfd_elf_create_got_section will create it for us. */
3412 htab
->srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
3413 if (htab
->srelgot
== NULL
3414 || !bfd_set_section_flags (dynobj
, htab
->srelgot
,
3415 (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
3416 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
3418 || !bfd_set_section_alignment (dynobj
, htab
->srelgot
, 2))
3424 /* Create dynamic sections when linking against a dynamic object. */
3427 nds32_elf_create_dynamic_sections (bfd
*abfd
, struct bfd_link_info
*info
)
3429 struct elf_nds32_link_hash_table
*htab
;
3430 flagword flags
, pltflags
;
3431 register asection
*s
;
3432 const struct elf_backend_data
*bed
;
3433 int ptralign
= 2; /* 32-bit */
3435 bed
= get_elf_backend_data (abfd
);
3437 htab
= nds32_elf_hash_table (info
);
3439 /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and
3440 .rel[a].bss sections. */
3442 flags
= (SEC_ALLOC
| SEC_LOAD
| SEC_HAS_CONTENTS
| SEC_IN_MEMORY
3443 | SEC_LINKER_CREATED
);
3446 pltflags
|= SEC_CODE
;
3447 if (bed
->plt_not_loaded
)
3448 pltflags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
3449 if (bed
->plt_readonly
)
3450 pltflags
|= SEC_READONLY
;
3452 s
= bfd_make_section (abfd
, ".plt");
3455 || !bfd_set_section_flags (abfd
, s
, pltflags
)
3456 || !bfd_set_section_alignment (abfd
, s
, bed
->plt_alignment
))
3459 if (bed
->want_plt_sym
)
3461 /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the
3463 struct bfd_link_hash_entry
*bh
= NULL
;
3464 struct elf_link_hash_entry
*h
;
3466 if (!(_bfd_generic_link_add_one_symbol
3467 (info
, abfd
, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL
, s
,
3468 (bfd_vma
) 0, (const char *) NULL
, FALSE
,
3469 get_elf_backend_data (abfd
)->collect
, &bh
)))
3472 h
= (struct elf_link_hash_entry
*) bh
;
3474 h
->type
= STT_OBJECT
;
3476 if (bfd_link_pic (info
) && !bfd_elf_link_record_dynamic_symbol (info
, h
))
3480 s
= bfd_make_section (abfd
,
3481 bed
->default_use_rela_p
? ".rela.plt" : ".rel.plt");
3484 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3485 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3488 if (htab
->sgot
== NULL
&& !create_got_section (abfd
, info
))
3492 const char *secname
;
3497 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
3499 secflags
= bfd_get_section_flags (abfd
, sec
);
3500 if ((secflags
& (SEC_DATA
| SEC_LINKER_CREATED
))
3501 || ((secflags
& SEC_HAS_CONTENTS
) != SEC_HAS_CONTENTS
))
3503 secname
= bfd_get_section_name (abfd
, sec
);
3504 relname
= (char *) bfd_malloc ((bfd_size_type
) strlen (secname
) + 6);
3505 strcpy (relname
, ".rela");
3506 strcat (relname
, secname
);
3507 if (bfd_get_section_by_name (abfd
, secname
))
3509 s
= bfd_make_section (abfd
, relname
);
3511 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3512 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3517 if (bed
->want_dynbss
)
3519 /* The .dynbss section is a place to put symbols which are defined
3520 by dynamic objects, are referenced by regular objects, and are
3521 not functions. We must allocate space for them in the process
3522 image and use a R_*_COPY reloc to tell the dynamic linker to
3523 initialize them at run time. The linker script puts the .dynbss
3524 section into the .bss section of the final image. */
3525 s
= bfd_make_section (abfd
, ".dynbss");
3528 || !bfd_set_section_flags (abfd
, s
, SEC_ALLOC
| SEC_LINKER_CREATED
))
3530 /* The .rel[a].bss section holds copy relocs. This section is not
3531 normally needed. We need to create it here, though, so that the
3532 linker will map it to an output section. We can't just create it
3533 only if we need it, because we will not know whether we need it
3534 until we have seen all the input files, and the first time the
3535 main linker code calls BFD after examining all the input files
3536 (size_dynamic_sections) the input sections have already been
3537 mapped to the output sections. If the section turns out not to
3538 be needed, we can discard it later. We will never need this
3539 section when generating a shared object, since they do not use
3541 if (!bfd_link_pic (info
))
3543 s
= bfd_make_section (abfd
, (bed
->default_use_rela_p
3544 ? ".rela.bss" : ".rel.bss"));
3547 || !bfd_set_section_flags (abfd
, s
, flags
| SEC_READONLY
)
3548 || !bfd_set_section_alignment (abfd
, s
, ptralign
))
3556 /* Copy the extra info we tack onto an elf_link_hash_entry. */
3558 nds32_elf_copy_indirect_symbol (struct bfd_link_info
*info
,
3559 struct elf_link_hash_entry
*dir
,
3560 struct elf_link_hash_entry
*ind
)
3562 struct elf_nds32_link_hash_entry
*edir
, *eind
;
3564 edir
= (struct elf_nds32_link_hash_entry
*) dir
;
3565 eind
= (struct elf_nds32_link_hash_entry
*) ind
;
3567 if (eind
->dyn_relocs
!= NULL
)
3569 if (edir
->dyn_relocs
!= NULL
)
3571 struct elf_nds32_dyn_relocs
**pp
;
3572 struct elf_nds32_dyn_relocs
*p
;
3574 if (ind
->root
.type
== bfd_link_hash_indirect
)
3577 /* Add reloc counts against the weak sym to the strong sym
3578 list. Merge any entries against the same section. */
3579 for (pp
= &eind
->dyn_relocs
; (p
= *pp
) != NULL
;)
3581 struct elf_nds32_dyn_relocs
*q
;
3583 for (q
= edir
->dyn_relocs
; q
!= NULL
; q
= q
->next
)
3584 if (q
->sec
== p
->sec
)
3586 q
->pc_count
+= p
->pc_count
;
3587 q
->count
+= p
->count
;
3594 *pp
= edir
->dyn_relocs
;
3597 edir
->dyn_relocs
= eind
->dyn_relocs
;
3598 eind
->dyn_relocs
= NULL
;
3601 _bfd_elf_link_hash_copy_indirect (info
, dir
, ind
);
3605 /* Adjust a symbol defined by a dynamic object and referenced by a
3606 regular object. The current definition is in some section of the
3607 dynamic object, but we're not including those sections. We have to
3608 change the definition to something the rest of the link can
3612 nds32_elf_adjust_dynamic_symbol (struct bfd_link_info
*info
,
3613 struct elf_link_hash_entry
*h
)
3615 struct elf_nds32_link_hash_table
*htab
;
3616 struct elf_nds32_link_hash_entry
*eh
;
3617 struct elf_nds32_dyn_relocs
*p
;
3620 unsigned int power_of_two
;
3622 dynobj
= elf_hash_table (info
)->dynobj
;
3624 /* Make sure we know what is going on here. */
3625 BFD_ASSERT (dynobj
!= NULL
3627 || h
->u
.weakdef
!= NULL
3628 || (h
->def_dynamic
&& h
->ref_regular
&& !h
->def_regular
)));
3631 /* If this is a function, put it in the procedure linkage table. We
3632 will fill in the contents of the procedure linkage table later,
3633 when we know the address of the .got section. */
3634 if (h
->type
== STT_FUNC
|| h
->needs_plt
)
3636 if (!bfd_link_pic (info
)
3639 && h
->root
.type
!= bfd_link_hash_undefweak
3640 && h
->root
.type
!= bfd_link_hash_undefined
)
3642 /* This case can occur if we saw a PLT reloc in an input
3643 file, but the symbol was never referred to by a dynamic
3644 object. In such a case, we don't actually need to build
3645 a procedure linkage table, and we can just do a PCREL
3647 h
->plt
.offset
= (bfd_vma
) - 1;
3654 h
->plt
.offset
= (bfd_vma
) - 1;
3656 /* If this is a weak symbol, and there is a real definition, the
3657 processor independent code will have arranged for us to see the
3658 real definition first, and we can just use the same value. */
3659 if (h
->u
.weakdef
!= NULL
)
3661 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3662 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3663 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3664 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3668 /* This is a reference to a symbol defined by a dynamic object which
3669 is not a function. */
3671 /* If we are creating a shared library, we must presume that the
3672 only references to the symbol are via the global offset table.
3673 For such cases we need not do anything here; the relocations will
3674 be handled correctly by relocate_section. */
3675 if (bfd_link_pic (info
))
3678 /* If there are no references to this symbol that do not use the
3679 GOT, we don't need to generate a copy reloc. */
3680 if (!h
->non_got_ref
)
3683 /* If -z nocopyreloc was given, we won't generate them either. */
3684 if (info
->nocopyreloc
)
3690 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3691 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3693 s
= p
->sec
->output_section
;
3694 if (s
!= NULL
&& (s
->flags
& (SEC_READONLY
| SEC_HAS_CONTENTS
)) != 0)
3698 /* If we didn't find any dynamic relocs in sections which needs the
3699 copy reloc, then we'll be keeping the dynamic relocs and avoiding
3707 /* We must allocate the symbol in our .dynbss section, which will
3708 become part of the .bss section of the executable. There will be
3709 an entry for this symbol in the .dynsym section. The dynamic
3710 object will contain position independent code, so all references
3711 from the dynamic object to this symbol will go through the global
3712 offset table. The dynamic linker will use the .dynsym entry to
3713 determine the address it must put in the global offset table, so
3714 both the dynamic object and the regular object will refer to the
3715 same memory location for the variable. */
3717 htab
= nds32_elf_hash_table (info
);
3719 BFD_ASSERT (s
!= NULL
);
3721 /* We must generate a R_NDS32_COPY reloc to tell the dynamic linker
3722 to copy the initial value out of the dynamic object and into the
3723 runtime process image. We need to remember the offset into the
3724 .rela.bss section we are going to use. */
3725 if ((h
->root
.u
.def
.section
->flags
& SEC_ALLOC
) != 0)
3729 srel
= htab
->srelbss
;
3730 BFD_ASSERT (srel
!= NULL
);
3731 srel
->size
+= sizeof (Elf32_External_Rela
);
3735 /* We need to figure out the alignment required for this symbol. I
3736 have no idea how ELF linkers handle this. */
3737 power_of_two
= bfd_log2 (h
->size
);
3738 if (power_of_two
> 3)
3741 /* Apply the required alignment. */
3742 s
->size
= BFD_ALIGN (s
->size
, (bfd_size_type
) (1 << power_of_two
));
3743 if (power_of_two
> bfd_get_section_alignment (dynobj
, s
))
3745 if (!bfd_set_section_alignment (dynobj
, s
, power_of_two
))
3749 /* Define the symbol as being at this point in the section. */
3750 h
->root
.u
.def
.section
= s
;
3751 h
->root
.u
.def
.value
= s
->size
;
3753 /* Increment the section size to make room for the symbol. */
3759 /* Allocate space in .plt, .got and associated reloc sections for
3763 allocate_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3765 struct bfd_link_info
*info
;
3766 struct elf_nds32_link_hash_table
*htab
;
3767 struct elf_nds32_link_hash_entry
*eh
;
3768 struct elf_nds32_dyn_relocs
*p
;
3770 if (h
->root
.type
== bfd_link_hash_indirect
)
3773 if (h
->root
.type
== bfd_link_hash_warning
)
3774 /* When warning symbols are created, they **replace** the "real"
3775 entry in the hash table, thus we never get to see the real
3776 symbol in a hash traversal. So look at it now. */
3777 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3779 info
= (struct bfd_link_info
*) inf
;
3780 htab
= nds32_elf_hash_table (info
);
3782 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3784 if (htab
->root
.dynamic_sections_created
&& h
->plt
.refcount
> 0)
3786 /* Make sure this symbol is output as a dynamic symbol.
3787 Undefined weak syms won't yet be marked as dynamic. */
3788 if (h
->dynindx
== -1 && !h
->forced_local
)
3790 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3794 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info
), h
))
3796 asection
*s
= htab
->splt
;
3798 /* If this is the first .plt entry, make room for the special
3801 s
->size
+= PLT_ENTRY_SIZE
;
3803 h
->plt
.offset
= s
->size
;
3805 /* If this symbol is not defined in a regular file, and we are
3806 not generating a shared library, then set the symbol to this
3807 location in the .plt. This is required to make function
3808 pointers compare as equal between the normal executable and
3809 the shared library. */
3810 if (!bfd_link_pic (info
) && !h
->def_regular
)
3812 h
->root
.u
.def
.section
= s
;
3813 h
->root
.u
.def
.value
= h
->plt
.offset
;
3816 /* Make room for this entry. */
3817 s
->size
+= PLT_ENTRY_SIZE
;
3819 /* We also need to make an entry in the .got.plt section, which
3820 will be placed in the .got section by the linker script. */
3821 htab
->sgotplt
->size
+= 4;
3823 /* We also need to make an entry in the .rel.plt section. */
3824 htab
->srelplt
->size
+= sizeof (Elf32_External_Rela
);
3828 h
->plt
.offset
= (bfd_vma
) - 1;
3834 h
->plt
.offset
= (bfd_vma
) - 1;
3838 if (h
->got
.refcount
> 0)
3842 int tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
3844 /* Make sure this symbol is output as a dynamic symbol.
3845 Undefined weak syms won't yet be marked as dynamic. */
3846 if (h
->dynindx
== -1 && !h
->forced_local
)
3848 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3853 h
->got
.offset
= s
->size
;
3855 if (tls_type
== GOT_UNKNOWN
)
3857 else if (tls_type
== GOT_NORMAL
3858 || tls_type
== GOT_TLS_IE
)
3859 /* Need a GOT slot. */
3862 dyn
= htab
->root
.dynamic_sections_created
;
3863 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
))
3864 htab
->srelgot
->size
+= sizeof (Elf32_External_Rela
);
3867 h
->got
.offset
= (bfd_vma
) - 1;
3869 if (eh
->dyn_relocs
== NULL
)
3872 /* In the shared -Bsymbolic case, discard space allocated for
3873 dynamic pc-relative relocs against symbols which turn out to be
3874 defined in regular objects. For the normal shared case, discard
3875 space for pc-relative relocs that have become local due to symbol
3876 visibility changes. */
3878 if (bfd_link_pic (info
))
3880 if (h
->def_regular
&& (h
->forced_local
|| info
->symbolic
))
3882 struct elf_nds32_dyn_relocs
**pp
;
3884 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
;)
3886 p
->count
-= p
->pc_count
;
3897 /* For the non-shared case, discard space for relocs against
3898 symbols which turn out to need copy relocs or are not dynamic. */
3903 || (htab
->root
.dynamic_sections_created
3904 && (h
->root
.type
== bfd_link_hash_undefweak
3905 || h
->root
.type
== bfd_link_hash_undefined
))))
3907 /* Make sure this symbol is output as a dynamic symbol.
3908 Undefined weak syms won't yet be marked as dynamic. */
3909 if (h
->dynindx
== -1 && !h
->forced_local
)
3911 if (!bfd_elf_link_record_dynamic_symbol (info
, h
))
3915 /* If that succeeded, we know we'll be keeping all the
3917 if (h
->dynindx
!= -1)
3921 eh
->dyn_relocs
= NULL
;
3926 /* Finally, allocate space. */
3927 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3929 asection
*sreloc
= elf_section_data (p
->sec
)->sreloc
;
3930 sreloc
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
3936 /* Find any dynamic relocs that apply to read-only sections. */
3939 readonly_dynrelocs (struct elf_link_hash_entry
*h
, void *inf
)
3941 struct elf_nds32_link_hash_entry
*eh
;
3942 struct elf_nds32_dyn_relocs
*p
;
3944 if (h
->root
.type
== bfd_link_hash_warning
)
3945 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3947 eh
= (struct elf_nds32_link_hash_entry
*) h
;
3948 for (p
= eh
->dyn_relocs
; p
!= NULL
; p
= p
->next
)
3950 asection
*s
= p
->sec
->output_section
;
3952 if (s
!= NULL
&& (s
->flags
& SEC_READONLY
) != 0)
3954 struct bfd_link_info
*info
= (struct bfd_link_info
*) inf
;
3956 info
->flags
|= DF_TEXTREL
;
3958 /* Not an error, just cut short the traversal. */
3965 /* Set the sizes of the dynamic sections. */
3968 nds32_elf_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
3969 struct bfd_link_info
*info
)
3971 struct elf_nds32_link_hash_table
*htab
;
3977 htab
= nds32_elf_hash_table (info
);
3978 dynobj
= htab
->root
.dynobj
;
3979 BFD_ASSERT (dynobj
!= NULL
);
3981 if (htab
->root
.dynamic_sections_created
)
3983 /* Set the contents of the .interp section to the interpreter. */
3984 if (!bfd_link_pic (info
) && !info
->nointerp
)
3986 s
= bfd_get_section_by_name (dynobj
, ".interp");
3987 BFD_ASSERT (s
!= NULL
);
3988 s
->size
= sizeof ELF_DYNAMIC_INTERPRETER
;
3989 s
->contents
= (unsigned char *) ELF_DYNAMIC_INTERPRETER
;
3993 /* Set up .got offsets for local syms, and space for local dynamic
3995 for (ibfd
= info
->input_bfds
; ibfd
!= NULL
; ibfd
= ibfd
->link
.next
)
3997 bfd_signed_vma
*local_got
;
3998 bfd_signed_vma
*end_local_got
;
3999 bfd_size_type locsymcount
;
4000 Elf_Internal_Shdr
*symtab_hdr
;
4003 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
)
4006 for (s
= ibfd
->sections
; s
!= NULL
; s
= s
->next
)
4008 struct elf_nds32_dyn_relocs
*p
;
4010 for (p
= ((struct elf_nds32_dyn_relocs
*)
4011 elf_section_data (s
)->local_dynrel
);
4012 p
!= NULL
; p
= p
->next
)
4014 if (!bfd_is_abs_section (p
->sec
)
4015 && bfd_is_abs_section (p
->sec
->output_section
))
4017 /* Input section has been discarded, either because
4018 it is a copy of a linkonce section or due to
4019 linker script /DISCARD/, so we'll be discarding
4022 else if (p
->count
!= 0)
4024 srel
= elf_section_data (p
->sec
)->sreloc
;
4025 srel
->size
+= p
->count
* sizeof (Elf32_External_Rela
);
4026 if ((p
->sec
->output_section
->flags
& SEC_READONLY
) != 0)
4027 info
->flags
|= DF_TEXTREL
;
4032 local_got
= elf_local_got_refcounts (ibfd
);
4036 symtab_hdr
= &elf_tdata (ibfd
)->symtab_hdr
;
4037 locsymcount
= symtab_hdr
->sh_info
;
4038 end_local_got
= local_got
+ locsymcount
;
4040 srel
= htab
->srelgot
;
4041 for (; local_got
< end_local_got
; ++local_got
)
4045 *local_got
= s
->size
;
4047 if (bfd_link_pic (info
))
4048 srel
->size
+= sizeof (Elf32_External_Rela
);
4051 *local_got
= (bfd_vma
) - 1;
4055 /* Allocate global sym .plt and .got entries, and space for global
4056 sym dynamic relocs. */
4057 elf_link_hash_traverse (&htab
->root
, allocate_dynrelocs
, (void *) info
);
4059 /* We now have determined the sizes of the various dynamic sections.
4060 Allocate memory for them. */
4062 for (s
= dynobj
->sections
; s
!= NULL
; s
= s
->next
)
4064 if ((s
->flags
& SEC_LINKER_CREATED
) == 0)
4067 if (s
== htab
->splt
)
4069 /* Strip this section if we don't need it; see the
4072 else if (s
== htab
->sgot
)
4074 got_size
+= s
->size
;
4076 else if (s
== htab
->sgotplt
)
4078 got_size
+= s
->size
;
4080 else if (strncmp (bfd_get_section_name (dynobj
, s
), ".rela", 5) == 0)
4082 if (s
->size
!= 0 && s
!= htab
->srelplt
)
4085 /* We use the reloc_count field as a counter if we need
4086 to copy relocs into the output file. */
4091 /* It's not one of our sections, so don't allocate space. */
4097 /* If we don't need this section, strip it from the
4098 output file. This is mostly to handle .rela.bss and
4099 .rela.plt. We must create both sections in
4100 create_dynamic_sections, because they must be created
4101 before the linker maps input sections to output
4102 sections. The linker does that before
4103 adjust_dynamic_symbol is called, and it is that
4104 function which decides whether anything needs to go
4105 into these sections. */
4106 s
->flags
|= SEC_EXCLUDE
;
4110 /* Allocate memory for the section contents. We use bfd_zalloc
4111 here in case unused entries are not reclaimed before the
4112 section's contents are written out. This should not happen,
4113 but this way if it does, we get a R_NDS32_NONE reloc instead
4115 s
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, s
->size
);
4116 if (s
->contents
== NULL
)
4121 if (htab
->root
.dynamic_sections_created
)
4123 /* Add some entries to the .dynamic section. We fill in the
4124 values later, in nds32_elf_finish_dynamic_sections, but we
4125 must add the entries now so that we get the correct size for
4126 the .dynamic section. The DT_DEBUG entry is filled in by the
4127 dynamic linker and used by the debugger. */
4128 #define add_dynamic_entry(TAG, VAL) \
4129 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
4131 if (!bfd_link_pic (info
))
4133 if (!add_dynamic_entry (DT_DEBUG
, 0))
4137 if (htab
->splt
->size
!= 0)
4139 if (!add_dynamic_entry (DT_PLTGOT
, 0)
4140 || !add_dynamic_entry (DT_PLTRELSZ
, 0)
4141 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
4142 || !add_dynamic_entry (DT_JMPREL
, 0))
4148 if (!add_dynamic_entry (DT_RELA
, 0)
4149 || !add_dynamic_entry (DT_RELASZ
, 0)
4150 || !add_dynamic_entry (DT_RELAENT
, sizeof (Elf32_External_Rela
)))
4153 /* If any dynamic relocs apply to a read-only section,
4154 then we need a DT_TEXTREL entry. */
4155 if ((info
->flags
& DF_TEXTREL
) == 0)
4156 elf_link_hash_traverse (&htab
->root
, readonly_dynrelocs
,
4159 if ((info
->flags
& DF_TEXTREL
) != 0)
4161 if (!add_dynamic_entry (DT_TEXTREL
, 0))
4166 #undef add_dynamic_entry
4171 static bfd_reloc_status_type
4172 nds32_relocate_contents (reloc_howto_type
*howto
, bfd
*input_bfd
,
4173 bfd_vma relocation
, bfd_byte
*location
)
4177 bfd_reloc_status_type flag
;
4178 unsigned int rightshift
= howto
->rightshift
;
4179 unsigned int bitpos
= howto
->bitpos
;
4181 /* If the size is negative, negate RELOCATION. This isn't very
4183 if (howto
->size
< 0)
4184 relocation
= -relocation
;
4186 /* Get the value we are going to relocate. */
4187 size
= bfd_get_reloc_size (howto
);
4194 return bfd_reloc_ok
;
4196 x
= bfd_getb16 (location
);
4199 x
= bfd_getb32 (location
);
4203 /* Check for overflow. FIXME: We may drop bits during the addition
4204 which we don't check for. We must either check at every single
4205 operation, which would be tedious, or we must do the computations
4206 in a type larger than bfd_vma, which would be inefficient. */
4207 flag
= bfd_reloc_ok
;
4208 if (howto
->complain_on_overflow
!= complain_overflow_dont
)
4210 bfd_vma addrmask
, fieldmask
, signmask
, ss
;
4213 /* Get the values to be added together. For signed and unsigned
4214 relocations, we assume that all values should be truncated to
4215 the size of an address. For bitfields, all the bits matter.
4216 See also bfd_check_overflow. */
4217 fieldmask
= N_ONES (howto
->bitsize
);
4218 signmask
= ~fieldmask
;
4219 addrmask
= N_ONES (bfd_arch_bits_per_address (input_bfd
)) | fieldmask
;
4220 a
= (relocation
& addrmask
) >> rightshift
;
4221 b
= (x
& howto
->src_mask
& addrmask
) >> bitpos
;
4223 switch (howto
->complain_on_overflow
)
4225 case complain_overflow_signed
:
4226 /* If any sign bits are set, all sign bits must be set.
4227 That is, A must be a valid negative address after
4229 signmask
= ~(fieldmask
>> 1);
4232 case complain_overflow_bitfield
:
4233 /* Much like the signed check, but for a field one bit
4234 wider. We allow a bitfield to represent numbers in the
4235 range -2**n to 2**n-1, where n is the number of bits in the
4236 field. Note that when bfd_vma is 32 bits, a 32-bit reloc
4237 can't overflow, which is exactly what we want. */
4239 if (ss
!= 0 && ss
!= ((addrmask
>> rightshift
) & signmask
))
4240 flag
= bfd_reloc_overflow
;
4242 /* We only need this next bit of code if the sign bit of B
4243 is below the sign bit of A. This would only happen if
4244 SRC_MASK had fewer bits than BITSIZE. Note that if
4245 SRC_MASK has more bits than BITSIZE, we can get into
4246 trouble; we would need to verify that B is in range, as
4247 we do for A above. */
4248 ss
= ((~howto
->src_mask
) >> 1) & howto
->src_mask
;
4251 /* Set all the bits above the sign bit. */
4254 /* Now we can do the addition. */
4257 /* See if the result has the correct sign. Bits above the
4258 sign bit are junk now; ignore them. If the sum is
4259 positive, make sure we did not have all negative inputs;
4260 if the sum is negative, make sure we did not have all
4261 positive inputs. The test below looks only at the sign
4262 bits, and it really just
4263 SIGN (A) == SIGN (B) && SIGN (A) != SIGN (SUM)
4265 We mask with addrmask here to explicitly allow an address
4266 wrap-around. The Linux kernel relies on it, and it is
4267 the only way to write assembler code which can run when
4268 loaded at a location 0x80000000 away from the location at
4269 which it is linked. */
4270 if (((~(a
^ b
)) & (a
^ sum
)) & signmask
& addrmask
)
4271 flag
= bfd_reloc_overflow
;
4275 case complain_overflow_unsigned
:
4276 /* Checking for an unsigned overflow is relatively easy:
4277 trim the addresses and add, and trim the result as well.
4278 Overflow is normally indicated when the result does not
4279 fit in the field. However, we also need to consider the
4280 case when, e.g., fieldmask is 0x7fffffff or smaller, an
4281 input is 0x80000000, and bfd_vma is only 32 bits; then we
4282 will get sum == 0, but there is an overflow, since the
4283 inputs did not fit in the field. Instead of doing a
4284 separate test, we can check for this by or-ing in the
4285 operands when testing for the sum overflowing its final
4287 sum
= (a
+ b
) & addrmask
;
4288 if ((a
| b
| sum
) & signmask
)
4289 flag
= bfd_reloc_overflow
;
4297 /* Put RELOCATION in the right bits. */
4298 relocation
>>= (bfd_vma
) rightshift
;
4299 relocation
<<= (bfd_vma
) bitpos
;
4301 /* Add RELOCATION to the right bits of X. */
4303 Because the relaxation may generate duplicate relocation at one address,
4304 an addition to immediate in the instruction may cause the relocation added
4306 This bug should be fixed in assembler, but a check is also needed here. */
4307 if (howto
->partial_inplace
)
4308 x
= ((x
& ~howto
->dst_mask
)
4309 | (((x
& howto
->src_mask
) + relocation
) & howto
->dst_mask
));
4311 x
= ((x
& ~howto
->dst_mask
) | ((relocation
) & howto
->dst_mask
));
4314 /* Put the relocated value back in the object file. */
4324 bfd_putb16 (x
, location
);
4327 bfd_putb32 (x
, location
);
4334 static bfd_reloc_status_type
4335 nds32_elf_final_link_relocate (reloc_howto_type
*howto
, bfd
*input_bfd
,
4336 asection
*input_section
, bfd_byte
*contents
,
4337 bfd_vma address
, bfd_vma value
, bfd_vma addend
)
4341 /* Sanity check the address. */
4342 if (address
> bfd_get_section_limit (input_bfd
, input_section
))
4343 return bfd_reloc_outofrange
;
4345 /* This function assumes that we are dealing with a basic relocation
4346 against a symbol. We want to compute the value of the symbol to
4347 relocate to. This is just VALUE, the value of the symbol, plus
4348 ADDEND, any addend associated with the reloc. */
4349 relocation
= value
+ addend
;
4351 /* If the relocation is PC relative, we want to set RELOCATION to
4352 the distance between the symbol (currently in RELOCATION) and the
4353 location we are relocating. Some targets (e.g., i386-aout)
4354 arrange for the contents of the section to be the negative of the
4355 offset of the location within the section; for such targets
4356 pcrel_offset is FALSE. Other targets (e.g., m88kbcs or ELF)
4357 simply leave the contents of the section as zero; for such
4358 targets pcrel_offset is TRUE. If pcrel_offset is FALSE we do not
4359 need to subtract out the offset of the location within the
4360 section (which is just ADDRESS). */
4361 if (howto
->pc_relative
)
4363 relocation
-= (input_section
->output_section
->vma
4364 + input_section
->output_offset
);
4365 if (howto
->pcrel_offset
)
4366 relocation
-= address
;
4369 return nds32_relocate_contents (howto
, input_bfd
, relocation
,
4370 contents
+ address
);
4374 nds32_elf_output_symbol_hook (struct bfd_link_info
*info
,
4376 Elf_Internal_Sym
*elfsym ATTRIBUTE_UNUSED
,
4377 asection
*input_sec
,
4378 struct elf_link_hash_entry
*h ATTRIBUTE_UNUSED
)
4381 FILE *sym_ld_script
= NULL
;
4382 struct elf_nds32_link_hash_table
*table
;
4384 table
= nds32_elf_hash_table (info
);
4385 sym_ld_script
= table
->sym_ld_script
;
4389 if (!h
|| !name
|| *name
== '\0')
4392 if (input_sec
->flags
& SEC_EXCLUDE
)
4395 if (!check_start_export_sym
)
4397 fprintf (sym_ld_script
, "SECTIONS\n{\n");
4398 check_start_export_sym
= 1;
4401 if (h
->root
.type
== bfd_link_hash_defined
4402 || h
->root
.type
== bfd_link_hash_defweak
)
4404 if (!h
->root
.u
.def
.section
->output_section
)
4407 if (bfd_is_const_section (input_sec
))
4408 source
= input_sec
->name
;
4410 source
= input_sec
->owner
->filename
;
4412 fprintf (sym_ld_script
, "\t%s = 0x%08lx;\t /* %s */\n",
4413 h
->root
.root
.string
,
4414 (long) (h
->root
.u
.def
.value
4415 + h
->root
.u
.def
.section
->output_section
->vma
4416 + h
->root
.u
.def
.section
->output_offset
), source
);
4422 /* Relocate an NDS32/D ELF section.
4423 There is some attempt to make this function usable for many architectures,
4424 both for RELA and REL type relocs, if only to serve as a learning tool.
4426 The RELOCATE_SECTION function is called by the new ELF backend linker
4427 to handle the relocations for a section.
4429 The relocs are always passed as Rela structures; if the section
4430 actually uses Rel structures, the r_addend field will always be
4433 This function is responsible for adjust the section contents as
4434 necessary, and (if using Rela relocs and generating a
4435 relocatable output file) adjusting the reloc addend as
4438 This function does not have to worry about setting the reloc
4439 address or the reloc symbol index.
4441 LOCAL_SYMS is a pointer to the swapped in local symbols.
4443 LOCAL_SECTIONS is an array giving the section in the input file
4444 corresponding to the st_shndx field of each local symbol.
4446 The global hash table entry for the global symbols can be found
4447 via elf_sym_hashes (input_bfd).
4449 When generating relocatable output, this function must handle
4450 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
4451 going to be the section symbol corresponding to the output
4452 section, which means that the addend must be adjusted
4456 dtpoff_base (struct bfd_link_info
*info
)
4458 /* If tls_sec is NULL, we should have signalled an error already. */
4459 if (elf_hash_table (info
)->tls_sec
== NULL
)
4461 return elf_hash_table (info
)->tls_sec
->vma
;
4465 nds32_elf_relocate_section (bfd
* output_bfd ATTRIBUTE_UNUSED
,
4466 struct bfd_link_info
* info
,
4468 asection
* input_section
,
4469 bfd_byte
* contents
,
4470 Elf_Internal_Rela
* relocs
,
4471 Elf_Internal_Sym
* local_syms
,
4472 asection
** local_sections
)
4474 Elf_Internal_Shdr
*symtab_hdr
;
4475 struct elf_link_hash_entry
**sym_hashes
;
4476 Elf_Internal_Rela
*rel
, *relend
;
4477 bfd_boolean ret
= TRUE
; /* Assume success. */
4479 bfd_reloc_status_type r
;
4480 const char *errmsg
= NULL
;
4482 struct elf_nds32_link_hash_table
*htab
;
4484 bfd_vma
*local_got_offsets
;
4485 asection
*sgot
, *splt
, *sreloc
;
4486 bfd_vma high_address
;
4487 struct elf_nds32_link_hash_table
*table
;
4488 int eliminate_gc_relocs
;
4489 bfd_vma fpbase_addr
;
4491 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4492 sym_hashes
= elf_sym_hashes (input_bfd
);
4493 htab
= nds32_elf_hash_table (info
);
4494 high_address
= bfd_get_section_limit (input_bfd
, input_section
);
4496 dynobj
= htab
->root
.dynobj
;
4497 local_got_offsets
= elf_local_got_offsets (input_bfd
);
4504 relend
= relocs
+ input_section
->reloc_count
;
4506 table
= nds32_elf_hash_table (info
);
4507 eliminate_gc_relocs
= table
->eliminate_gc_relocs
;
4508 /* By this time, we can adjust the value of _SDA_BASE_. */
4509 if ((!bfd_link_relocatable (info
)))
4511 is_SDA_BASE_set
= 1;
4512 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, TRUE
);
4513 if (r
!= bfd_reloc_ok
)
4517 if (is_ITB_BASE_set
== 0)
4519 /* Set the _ITB_BASE_. */
4520 if (!nds32_elf_ex9_itb_base (info
))
4522 (*_bfd_error_handler
) (_("%B: error: Cannot set _ITB_BASE_"),
4524 bfd_set_error (bfd_error_bad_value
);
4528 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
4529 if (!nds32_elf_ifc_reloc ())
4530 (*_bfd_error_handler
) (_("error: IFC relocation error."));
4532 /* Relocation for .ex9.itable. */
4533 if (table
->target_optimize
& NDS32_RELAX_EX9_ON
4534 || (table
->ex9_import_file
&& table
->update_ex9_table
))
4535 nds32_elf_ex9_reloc_jmp (info
);
4537 /* Use gp as fp to prevent truncated fit. Because in relaxation time
4538 the fp value is set as gp, and it has be reverted for instruction
4540 fpbase_addr
= elf_gp (output_bfd
);
4542 for (rel
= relocs
; rel
< relend
; rel
++)
4544 enum elf_nds32_reloc_type r_type
;
4545 reloc_howto_type
*howto
= NULL
;
4546 unsigned long r_symndx
;
4547 struct elf_link_hash_entry
*h
= NULL
;
4548 Elf_Internal_Sym
*sym
= NULL
;
4552 /* We can't modify r_addend here as elf_link_input_bfd has an assert to
4553 ensure it's zero (we use REL relocs, not RELA). Therefore this
4554 should be assigning zero to `addend', but for clarity we use
4557 bfd_vma addend
= rel
->r_addend
;
4558 bfd_vma offset
= rel
->r_offset
;
4560 r_type
= ELF32_R_TYPE (rel
->r_info
);
4561 if (r_type
>= R_NDS32_max
)
4563 (*_bfd_error_handler
) (_("%B: error: unknown relocation type %d."),
4565 bfd_set_error (bfd_error_bad_value
);
4570 if (r_type
== R_NDS32_GNU_VTENTRY
4571 || r_type
== R_NDS32_GNU_VTINHERIT
4572 || r_type
== R_NDS32_NONE
4573 || r_type
== R_NDS32_RELA_GNU_VTENTRY
4574 || r_type
== R_NDS32_RELA_GNU_VTINHERIT
4575 || (r_type
>= R_NDS32_INSN16
&& r_type
<= R_NDS32_25_FIXED_RELA
)
4576 || r_type
== R_NDS32_DATA
4577 || r_type
== R_NDS32_TRAN
4578 || (r_type
>= R_NDS32_LONGCALL4
&& r_type
<= R_NDS32_LONGJUMP7
))
4581 /* If we enter the fp-as-gp region. Resolve the address
4583 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
4584 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
4588 /* Distance to relocation of best fp-base is encoded in R_SYM. */
4589 dist
= rel
->r_addend
>> 16;
4590 fpbase_addr
= calculate_memory_address (input_bfd
, rel
+ dist
,
4591 local_syms
, symtab_hdr
);
4593 else if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_RELAX_REGION_END
4594 && (rel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
4596 fpbase_addr
= elf_gp (output_bfd
);
4599 if (((r_type
>= R_NDS32_DWARF2_OP1_RELA
4600 && r_type
<= R_NDS32_DWARF2_LEB_RELA
)
4601 || r_type
>= R_NDS32_RELAX_ENTRY
) && !bfd_link_relocatable (info
))
4604 howto
= bfd_elf32_bfd_reloc_type_table_lookup (r_type
);
4605 r_symndx
= ELF32_R_SYM (rel
->r_info
);
4607 /* This is a final link. */
4612 if (r_symndx
< symtab_hdr
->sh_info
)
4615 sym
= local_syms
+ r_symndx
;
4616 sec
= local_sections
[r_symndx
];
4618 relocation
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &sec
, rel
);
4619 addend
= rel
->r_addend
;
4623 /* External symbol. */
4624 bfd_boolean warned
, ignored
, unresolved_reloc
;
4625 int symndx
= r_symndx
- symtab_hdr
->sh_info
;
4627 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
4628 r_symndx
, symtab_hdr
, sym_hashes
, h
, sec
,
4629 relocation
, unresolved_reloc
, warned
,
4632 /* la $fp, _FP_BASE_ is per-function (region).
4633 Handle it specially. */
4634 switch ((int) r_type
)
4636 case R_NDS32_SDA19S0_RELA
:
4637 case R_NDS32_SDA15S0_RELA
:
4638 case R_NDS32_20_RELA
:
4639 if (strcmp (elf_sym_hashes (input_bfd
)[symndx
]->root
.root
.string
,
4642 relocation
= fpbase_addr
;
4649 if (bfd_link_relocatable (info
))
4651 /* This is a relocatable link. We don't have to change
4652 anything, unless the reloc is against a section symbol,
4653 in which case we have to adjust according to where the
4654 section symbol winds up in the output section. */
4655 if (sym
!= NULL
&& ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
4656 rel
->r_addend
+= sec
->output_offset
+ sym
->st_value
;
4661 /* Sanity check the address. */
4662 if (offset
> high_address
)
4664 r
= bfd_reloc_outofrange
;
4668 if ((r_type
>= R_NDS32_DWARF2_OP1_RELA
4669 && r_type
<= R_NDS32_DWARF2_LEB_RELA
)
4670 || r_type
>= R_NDS32_RELAX_ENTRY
)
4673 switch ((int) r_type
)
4675 case R_NDS32_GOTOFF
:
4676 /* Relocation is relative to the start of the global offset
4677 table (for ld24 rx, #uimm24), e.g. access at label+addend
4679 ld24 rx. #label@GOTOFF + addend
4681 case R_NDS32_GOTOFF_HI20
:
4682 case R_NDS32_GOTOFF_LO12
:
4683 case R_NDS32_GOTOFF_LO15
:
4684 case R_NDS32_GOTOFF_LO19
:
4685 BFD_ASSERT (sgot
!= NULL
);
4687 relocation
-= elf_gp (output_bfd
);
4690 case R_NDS32_9_PLTREL
:
4691 case R_NDS32_25_PLTREL
:
4692 /* Relocation is to the entry for this symbol in the
4693 procedure linkage table. */
4695 /* The native assembler will generate a 25_PLTREL reloc
4696 for a local symbol if you assemble a call from one
4697 section to another when using -K pic. */
4701 if (h
->forced_local
)
4704 /* We didn't make a PLT entry for this symbol. This
4705 happens when statically linking PIC code, or when
4706 using -Bsymbolic. */
4707 if (h
->plt
.offset
== (bfd_vma
) - 1)
4710 relocation
= (splt
->output_section
->vma
4711 + splt
->output_offset
+ h
->plt
.offset
);
4714 case R_NDS32_PLT_GOTREL_HI20
:
4715 case R_NDS32_PLT_GOTREL_LO12
:
4716 case R_NDS32_PLT_GOTREL_LO15
:
4717 case R_NDS32_PLT_GOTREL_LO19
:
4718 case R_NDS32_PLT_GOTREL_LO20
:
4719 if (h
== NULL
|| h
->forced_local
|| h
->plt
.offset
== (bfd_vma
) - 1)
4721 /* We didn't make a PLT entry for this symbol. This
4722 happens when statically linking PIC code, or when
4723 using -Bsymbolic. */
4724 relocation
-= elf_gp (output_bfd
);
4728 relocation
= (splt
->output_section
->vma
4729 + splt
->output_offset
+ h
->plt
.offset
);
4731 relocation
-= elf_gp (output_bfd
);
4734 case R_NDS32_PLTREL_HI20
:
4735 case R_NDS32_PLTREL_LO12
:
4737 /* Relocation is to the entry for this symbol in the
4738 procedure linkage table. */
4740 /* The native assembler will generate a 25_PLTREL reloc
4741 for a local symbol if you assemble a call from one
4742 section to another when using -K pic. */
4746 if (h
->forced_local
)
4749 if (h
->plt
.offset
== (bfd_vma
) - 1)
4750 /* We didn't make a PLT entry for this symbol. This
4751 happens when statically linking PIC code, or when
4752 using -Bsymbolic. */
4758 relocation
= (splt
->output_section
->vma
4759 + splt
->output_offset
4760 + h
->plt
.offset
+ 4)
4761 - (input_section
->output_section
->vma
4762 + input_section
->output_offset
4767 case R_NDS32_GOTPC20
:
4768 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4769 ld24 rx,#_GLOBAL_OFFSET_TABLE_ */
4770 relocation
= elf_gp (output_bfd
);
4773 case R_NDS32_GOTPC_HI20
:
4774 case R_NDS32_GOTPC_LO12
:
4776 /* .got(_GLOBAL_OFFSET_TABLE_) - pc relocation
4778 seth rx,#high(_GLOBAL_OFFSET_TABLE_)
4779 or3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4782 seth rx,#shigh(_GLOBAL_OFFSET_TABLE_)
4783 add3 rx,rx,#low(_GLOBAL_OFFSET_TABLE_ +4)
4785 relocation
= elf_gp (output_bfd
);
4786 relocation
-= (input_section
->output_section
->vma
4787 + input_section
->output_offset
+ rel
->r_offset
);
4793 case R_NDS32_GOT_HI20
:
4794 case R_NDS32_GOT_LO12
:
4795 case R_NDS32_GOT_LO15
:
4796 case R_NDS32_GOT_LO19
:
4797 /* Relocation is to the entry for this symbol in the global
4799 BFD_ASSERT (sgot
!= NULL
);
4806 off
= h
->got
.offset
;
4807 BFD_ASSERT (off
!= (bfd_vma
) - 1);
4808 dyn
= htab
->root
.dynamic_sections_created
;
4809 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
,
4810 bfd_link_pic (info
),
4812 || (bfd_link_pic (info
)
4815 || h
->forced_local
) && h
->def_regular
))
4817 /* This is actually a static link, or it is a
4818 -Bsymbolic link and the symbol is defined
4819 locally, or the symbol was forced to be local
4820 because of a version file. We must initialize
4821 this entry in the global offset table. Since the
4822 offset must always be a multiple of 4, we use the
4823 least significant bit to record whether we have
4824 initialized it already.
4826 When doing a dynamic link, we create a .rela.got
4827 relocation entry to initialize the value. This
4828 is done in the finish_dynamic_symbol routine. */
4833 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4837 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
4838 - elf_gp (output_bfd
);
4845 BFD_ASSERT (local_got_offsets
!= NULL
4846 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
4848 off
= local_got_offsets
[r_symndx
];
4850 /* The offset must always be a multiple of 4. We use
4851 the least significant bit to record whether we have
4852 already processed this entry. */
4857 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
4859 if (bfd_link_pic (info
))
4862 Elf_Internal_Rela outrel
;
4864 /* We need to generate a R_NDS32_RELATIVE reloc
4865 for the dynamic linker. */
4866 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
4867 BFD_ASSERT (srelgot
!= NULL
);
4869 outrel
.r_offset
= (elf_gp (output_bfd
)
4870 + sgot
->output_offset
+ off
);
4871 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
4872 outrel
.r_addend
= relocation
;
4873 loc
= srelgot
->contents
;
4875 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
4876 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4877 ++srelgot
->reloc_count
;
4879 local_got_offsets
[r_symndx
] |= 1;
4881 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
4882 - elf_gp (output_bfd
);
4887 case R_NDS32_16_RELA
:
4888 case R_NDS32_20_RELA
:
4889 case R_NDS32_5_RELA
:
4890 case R_NDS32_32_RELA
:
4891 case R_NDS32_9_PCREL_RELA
:
4892 case R_NDS32_WORD_9_PCREL_RELA
:
4893 case R_NDS32_10_UPCREL_RELA
:
4894 case R_NDS32_15_PCREL_RELA
:
4895 case R_NDS32_17_PCREL_RELA
:
4896 case R_NDS32_25_PCREL_RELA
:
4897 case R_NDS32_HI20_RELA
:
4898 case R_NDS32_LO12S3_RELA
:
4899 case R_NDS32_LO12S2_RELA
:
4900 case R_NDS32_LO12S2_DP_RELA
:
4901 case R_NDS32_LO12S2_SP_RELA
:
4902 case R_NDS32_LO12S1_RELA
:
4903 case R_NDS32_LO12S0_RELA
:
4904 case R_NDS32_LO12S0_ORI_RELA
:
4905 if (bfd_link_pic (info
) && r_symndx
!= 0
4906 && (input_section
->flags
& SEC_ALLOC
) != 0
4907 && (eliminate_gc_relocs
== 0
4908 || (sec
&& (sec
->flags
& SEC_EXCLUDE
) == 0))
4909 && ((r_type
!= R_NDS32_9_PCREL_RELA
4910 && r_type
!= R_NDS32_WORD_9_PCREL_RELA
4911 && r_type
!= R_NDS32_10_UPCREL_RELA
4912 && r_type
!= R_NDS32_15_PCREL_RELA
4913 && r_type
!= R_NDS32_17_PCREL_RELA
4914 && r_type
!= R_NDS32_25_PCREL_RELA
4915 && !(r_type
== R_NDS32_32_RELA
4916 && strcmp (input_section
->name
, ".eh_frame") == 0))
4917 || (h
!= NULL
&& h
->dynindx
!= -1
4918 && (!info
->symbolic
|| !h
->def_regular
))))
4920 Elf_Internal_Rela outrel
;
4921 bfd_boolean skip
, relocate
;
4924 /* When generating a shared object, these relocations
4925 are copied into the output file to be resolved at run
4932 name
= bfd_elf_string_from_elf_section
4933 (input_bfd
, elf_elfheader (input_bfd
)->e_shstrndx
,
4934 elf_section_data (input_section
)->rela
.hdr
->sh_name
);
4938 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
4939 && strcmp (bfd_get_section_name (input_bfd
,
4943 sreloc
= bfd_get_section_by_name (dynobj
, name
);
4944 BFD_ASSERT (sreloc
!= NULL
);
4950 outrel
.r_offset
= _bfd_elf_section_offset (output_bfd
,
4954 if (outrel
.r_offset
== (bfd_vma
) - 1)
4956 else if (outrel
.r_offset
== (bfd_vma
) - 2)
4957 skip
= TRUE
, relocate
= TRUE
;
4958 outrel
.r_offset
+= (input_section
->output_section
->vma
4959 + input_section
->output_offset
);
4962 memset (&outrel
, 0, sizeof outrel
);
4963 else if (r_type
== R_NDS32_17_PCREL_RELA
4964 || r_type
== R_NDS32_15_PCREL_RELA
4965 || r_type
== R_NDS32_25_PCREL_RELA
)
4967 BFD_ASSERT (h
!= NULL
&& h
->dynindx
!= -1);
4968 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4969 outrel
.r_addend
= rel
->r_addend
;
4973 /* h->dynindx may be -1 if this symbol was marked to
4976 || ((info
->symbolic
|| h
->dynindx
== -1)
4980 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
4981 outrel
.r_addend
= relocation
+ rel
->r_addend
;
4985 BFD_ASSERT (h
->dynindx
!= -1);
4986 outrel
.r_info
= ELF32_R_INFO (h
->dynindx
, r_type
);
4987 outrel
.r_addend
= rel
->r_addend
;
4991 loc
= sreloc
->contents
;
4992 loc
+= sreloc
->reloc_count
* sizeof (Elf32_External_Rela
);
4993 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
4994 ++sreloc
->reloc_count
;
4996 /* If this reloc is against an external symbol, we do
4997 not want to fiddle with the addend. Otherwise, we
4998 need to include the symbol value so that it becomes
4999 an addend for the dynamic reloc. */
5005 case R_NDS32_25_ABS_RELA
:
5006 if (bfd_link_pic (info
))
5008 (*_bfd_error_handler
)
5009 (_("%s: warning: cannot deal R_NDS32_25_ABS_RELA in shared "
5010 "mode."), bfd_get_filename (input_bfd
));
5015 case R_NDS32_9_PCREL
:
5016 r
= nds32_elf_do_9_pcrel_reloc (input_bfd
, howto
, input_section
,
5018 sec
, relocation
, addend
);
5023 Elf_Internal_Rela
*lorel
;
5025 /* We allow an arbitrary number of HI20 relocs before the
5026 LO12 reloc. This permits gcc to emit the HI and LO relocs
5028 for (lorel
= rel
+ 1;
5030 && ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_HI20
); lorel
++)
5033 && (ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S3
5034 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S2
5035 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S1
5036 || ELF32_R_TYPE (lorel
->r_info
) == R_NDS32_LO12S0
))
5038 nds32_elf_relocate_hi20 (input_bfd
, r_type
, rel
, lorel
,
5039 contents
, relocation
+ addend
);
5043 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5044 contents
, offset
, relocation
,
5050 case R_NDS32_GOT17S2_RELA
:
5051 case R_NDS32_GOT15S2_RELA
:
5055 BFD_ASSERT (sgot
!= NULL
);
5061 off
= h
->got
.offset
;
5062 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5064 dyn
= htab
->root
.dynamic_sections_created
;
5065 if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL
5066 (dyn
, bfd_link_pic (info
), h
)
5067 || (bfd_link_pic (info
)
5073 /* This is actually a static link, or it is a
5074 -Bsymbolic link and the symbol is defined
5075 locally, or the symbol was forced to be local
5076 because of a version file. We must initialize
5077 this entry in the global offset table. Since the
5078 offset must always be a multiple of 4, we use the
5079 least significant bit to record whether we have
5080 initialized it already.
5082 When doing a dynamic link, we create a .rela.got
5083 relocation entry to initialize the value. This
5084 is done in the finish_dynamic_symbol routine. */
5089 bfd_put_32 (output_bfd
, relocation
,
5090 sgot
->contents
+ off
);
5099 BFD_ASSERT (local_got_offsets
!= NULL
5100 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5102 off
= local_got_offsets
[r_symndx
];
5104 /* The offset must always be a multiple of 4. We use
5105 the least significant bit to record whether we have
5106 already processed this entry. */
5111 bfd_put_32 (output_bfd
, relocation
, sgot
->contents
+ off
);
5113 if (bfd_link_pic (info
))
5116 Elf_Internal_Rela outrel
;
5118 /* We need to generate a R_NDS32_RELATIVE reloc
5119 for the dynamic linker. */
5120 srelgot
= bfd_get_section_by_name (dynobj
, ".rela.got");
5121 BFD_ASSERT (srelgot
!= NULL
);
5123 outrel
.r_offset
= (elf_gp (output_bfd
)
5124 + sgot
->output_offset
+ off
);
5125 outrel
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5126 outrel
.r_addend
= relocation
;
5127 loc
= srelgot
->contents
;
5129 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5130 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5131 ++srelgot
->reloc_count
;
5133 local_got_offsets
[r_symndx
] |= 1;
5136 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
5137 - elf_gp (output_bfd
);
5139 if (relocation
& align
)
5141 /* Incorrect alignment. */
5142 (*_bfd_error_handler
)
5143 (_("%B: warning: unaligned access to GOT entry."), input_bfd
);
5145 r
= bfd_reloc_dangerous
;
5150 case R_NDS32_SDA16S3_RELA
:
5151 case R_NDS32_SDA15S3_RELA
:
5152 case R_NDS32_SDA15S3
:
5156 case R_NDS32_SDA17S2_RELA
:
5157 case R_NDS32_SDA15S2_RELA
:
5158 case R_NDS32_SDA12S2_SP_RELA
:
5159 case R_NDS32_SDA12S2_DP_RELA
:
5160 case R_NDS32_SDA15S2
:
5161 case R_NDS32_SDA_FP7U2_RELA
:
5165 case R_NDS32_SDA18S1_RELA
:
5166 case R_NDS32_SDA15S1_RELA
:
5167 case R_NDS32_SDA15S1
:
5171 case R_NDS32_SDA19S0_RELA
:
5172 case R_NDS32_SDA15S0_RELA
:
5173 case R_NDS32_SDA15S0
:
5177 BFD_ASSERT (sec
!= NULL
);
5179 /* If the symbol is in the abs section, the out_bfd will be null.
5180 This happens when the relocation has a symbol@GOTOFF. */
5181 r
= nds32_elf_final_sda_base (output_bfd
, info
, &gp
, FALSE
);
5182 if (r
!= bfd_reloc_ok
)
5184 (*_bfd_error_handler
)
5185 (_("%B: warning: relocate SDA_BASE failed."), input_bfd
);
5190 /* At this point `relocation' contains the object's
5192 if (r_type
== R_NDS32_SDA_FP7U2_RELA
)
5194 relocation
-= fpbase_addr
;
5198 /* Now it contains the offset from _SDA_BASE_. */
5200 /* Make sure alignment is correct. */
5202 if (relocation
& align
)
5204 /* Incorrect alignment. */
5205 (*_bfd_error_handler
)
5206 (_("%B(%A): warning: unaligned small data access of type %d."),
5207 input_bfd
, input_section
, r_type
);
5214 case R_NDS32_17IFC_PCREL_RELA
:
5215 case R_NDS32_10IFCU_PCREL_RELA
:
5219 case R_NDS32_TLS_LE_HI20
:
5220 case R_NDS32_TLS_LE_LO12
:
5221 case R_NDS32_TLS_LE_20
:
5222 case R_NDS32_TLS_LE_15S0
:
5223 case R_NDS32_TLS_LE_15S1
:
5224 case R_NDS32_TLS_LE_15S2
:
5225 if (elf_hash_table (info
)->tls_sec
!= NULL
)
5226 relocation
-= (elf_hash_table (info
)->tls_sec
->vma
+ TP_OFFSET
);
5228 case R_NDS32_TLS_IE_HI20
:
5229 case R_NDS32_TLS_IE_LO12S2
:
5231 /* Relocation is to the entry for this symbol in the global
5233 unsigned int tls_type
;
5235 Elf_Internal_Rela outrel
;
5240 BFD_ASSERT (sgot
!= NULL
);
5245 off
= h
->got
.offset
;
5246 BFD_ASSERT (off
!= (bfd_vma
) - 1);
5247 dyn
= htab
->root
.dynamic_sections_created
;
5248 tls_type
= ((struct elf_nds32_link_hash_entry
*) h
)->tls_type
;
5249 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn
, bfd_link_pic (info
), h
)
5250 && (!bfd_link_pic (info
)
5251 || !SYMBOL_REFERENCES_LOCAL (info
, h
)))
5256 /* Never happen currently. */
5257 BFD_ASSERT (local_got_offsets
!= NULL
5258 && local_got_offsets
[r_symndx
] != (bfd_vma
) - 1);
5260 off
= local_got_offsets
[r_symndx
];
5262 tls_type
= elf32_nds32_local_got_tls_type (input_bfd
)[r_symndx
];
5264 relocation
= sgot
->output_section
->vma
+ sgot
->output_offset
+ off
;
5266 if (r_type
== R_NDS32_TLS_IE_LO12S2
)
5269 /* The offset must always be a multiple of 4. We use
5270 the least significant bit to record whether we have
5271 already processed this entry. */
5276 bfd_boolean need_relocs
= FALSE
;
5277 srelgot
= htab
->srelgot
;
5278 if ((bfd_link_pic (info
) || indx
!= 0)
5280 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
5281 || h
->root
.type
!= bfd_link_hash_undefweak
))
5284 BFD_ASSERT (srelgot
!= NULL
);
5286 if (tls_type
& GOT_TLS_IE
)
5290 if (h
->dynindx
== 0)
5291 outrel
.r_addend
= relocation
- dtpoff_base (info
);
5293 outrel
.r_addend
= 0;
5294 outrel
.r_offset
= (sgot
->output_section
->vma
5295 + sgot
->output_offset
5298 ELF32_R_INFO (h
->dynindx
, R_NDS32_TLS_TPOFF
);
5300 loc
= srelgot
->contents
;
5302 srelgot
->reloc_count
* sizeof (Elf32_External_Rela
);
5303 bfd_elf32_swap_reloca_out (output_bfd
, &outrel
, loc
);
5304 ++srelgot
->reloc_count
;
5307 bfd_put_32 (output_bfd
, h
->root
.u
.def
.value
- TP_OFFSET
,
5308 sgot
->contents
+ off
);
5314 /* DON'T fall through. */
5317 /* OLD_NDS32_RELOC. */
5319 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5320 contents
, offset
, relocation
, addend
);
5324 switch ((int) r_type
)
5326 case R_NDS32_20_RELA
:
5327 case R_NDS32_5_RELA
:
5328 case R_NDS32_9_PCREL_RELA
:
5329 case R_NDS32_WORD_9_PCREL_RELA
:
5330 case R_NDS32_10_UPCREL_RELA
:
5331 case R_NDS32_15_PCREL_RELA
:
5332 case R_NDS32_17_PCREL_RELA
:
5333 case R_NDS32_25_PCREL_RELA
:
5334 case R_NDS32_25_ABS_RELA
:
5335 case R_NDS32_HI20_RELA
:
5336 case R_NDS32_LO12S3_RELA
:
5337 case R_NDS32_LO12S2_RELA
:
5338 case R_NDS32_LO12S2_DP_RELA
:
5339 case R_NDS32_LO12S2_SP_RELA
:
5340 case R_NDS32_LO12S1_RELA
:
5341 case R_NDS32_LO12S0_RELA
:
5342 case R_NDS32_LO12S0_ORI_RELA
:
5343 case R_NDS32_SDA16S3_RELA
:
5344 case R_NDS32_SDA17S2_RELA
:
5345 case R_NDS32_SDA18S1_RELA
:
5346 case R_NDS32_SDA19S0_RELA
:
5347 case R_NDS32_SDA15S3_RELA
:
5348 case R_NDS32_SDA15S2_RELA
:
5349 case R_NDS32_SDA12S2_DP_RELA
:
5350 case R_NDS32_SDA12S2_SP_RELA
:
5351 case R_NDS32_SDA15S1_RELA
:
5352 case R_NDS32_SDA15S0_RELA
:
5353 case R_NDS32_SDA_FP7U2_RELA
:
5354 case R_NDS32_9_PLTREL
:
5355 case R_NDS32_25_PLTREL
:
5357 case R_NDS32_GOT_HI20
:
5358 case R_NDS32_GOT_LO12
:
5359 case R_NDS32_GOT_LO15
:
5360 case R_NDS32_GOT_LO19
:
5361 case R_NDS32_GOT15S2_RELA
:
5362 case R_NDS32_GOT17S2_RELA
:
5363 case R_NDS32_GOTPC20
:
5364 case R_NDS32_GOTPC_HI20
:
5365 case R_NDS32_GOTPC_LO12
:
5366 case R_NDS32_GOTOFF
:
5367 case R_NDS32_GOTOFF_HI20
:
5368 case R_NDS32_GOTOFF_LO12
:
5369 case R_NDS32_GOTOFF_LO15
:
5370 case R_NDS32_GOTOFF_LO19
:
5371 case R_NDS32_PLTREL_HI20
:
5372 case R_NDS32_PLTREL_LO12
:
5373 case R_NDS32_PLT_GOTREL_HI20
:
5374 case R_NDS32_PLT_GOTREL_LO12
:
5375 case R_NDS32_PLT_GOTREL_LO15
:
5376 case R_NDS32_PLT_GOTREL_LO19
:
5377 case R_NDS32_PLT_GOTREL_LO20
:
5378 case R_NDS32_17IFC_PCREL_RELA
:
5379 case R_NDS32_10IFCU_PCREL_RELA
:
5380 case R_NDS32_TLS_LE_HI20
:
5381 case R_NDS32_TLS_LE_LO12
:
5382 case R_NDS32_TLS_IE_HI20
:
5383 case R_NDS32_TLS_IE_LO12S2
:
5384 case R_NDS32_TLS_LE_20
:
5385 case R_NDS32_TLS_LE_15S0
:
5386 case R_NDS32_TLS_LE_15S1
:
5387 case R_NDS32_TLS_LE_15S2
:
5388 /* Instruction related relocs must handle endian properly. */
5389 /* NOTE: PIC IS NOT HANDLE YET; DO IT LATER. */
5390 r
= nds32_elf_final_link_relocate (howto
, input_bfd
,
5391 input_section
, contents
,
5392 rel
->r_offset
, relocation
,
5397 /* All other relocs can use default handler. */
5398 r
= _bfd_final_link_relocate (howto
, input_bfd
, input_section
,
5399 contents
, rel
->r_offset
,
5400 relocation
, rel
->r_addend
);
5406 if (r
!= bfd_reloc_ok
)
5408 /* FIXME: This should be generic enough to go in a utility. */
5412 name
= h
->root
.root
.string
;
5415 name
= bfd_elf_string_from_elf_section
5416 (input_bfd
, symtab_hdr
->sh_link
, sym
->st_name
);
5417 if (name
== NULL
|| *name
== '\0')
5418 name
= bfd_section_name (input_bfd
, sec
);
5426 case bfd_reloc_overflow
:
5427 if (!((*info
->callbacks
->reloc_overflow
)
5428 (info
, (h
? &h
->root
: NULL
), name
, howto
->name
,
5429 (bfd_vma
) 0, input_bfd
, input_section
, offset
)))
5433 case bfd_reloc_undefined
:
5434 if (!((*info
->callbacks
->undefined_symbol
)
5435 (info
, name
, input_bfd
, input_section
, offset
, TRUE
)))
5439 case bfd_reloc_outofrange
:
5440 errmsg
= _("internal error: out of range error");
5443 case bfd_reloc_notsupported
:
5444 errmsg
= _("internal error: unsupported relocation error");
5447 case bfd_reloc_dangerous
:
5448 errmsg
= _("internal error: dangerous error");
5452 errmsg
= _("internal error: unknown error");
5456 if (!((*info
->callbacks
->warning
)
5457 (info
, errmsg
, name
, input_bfd
, input_section
, offset
)))
5467 /* Finish up dynamic symbol handling. We set the contents of various
5468 dynamic sections here. */
5471 nds32_elf_finish_dynamic_symbol (bfd
*output_bfd
, struct bfd_link_info
*info
,
5472 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
)
5474 struct elf_nds32_link_hash_table
*htab
;
5477 htab
= nds32_elf_hash_table (info
);
5479 if (h
->plt
.offset
!= (bfd_vma
) - 1)
5487 bfd_vma local_plt_offset
;
5488 Elf_Internal_Rela rela
;
5490 /* This symbol has an entry in the procedure linkage table. Set
5493 BFD_ASSERT (h
->dynindx
!= -1);
5496 sgot
= htab
->sgotplt
;
5497 srela
= htab
->srelplt
;
5498 BFD_ASSERT (splt
!= NULL
&& sgot
!= NULL
&& srela
!= NULL
);
5500 /* Get the index in the procedure linkage table which
5501 corresponds to this symbol. This is the index of this symbol
5502 in all the symbols for which we are making plt entries. The
5503 first entry in the procedure linkage table is reserved. */
5504 plt_index
= h
->plt
.offset
/ PLT_ENTRY_SIZE
- 1;
5506 /* Get the offset into the .got table of the entry that
5507 corresponds to this function. Each .got entry is 4 bytes.
5508 The first three are reserved. */
5509 got_offset
= (plt_index
+ 3) * 4;
5511 /* Fill in the entry in the procedure linkage table. */
5512 if (!bfd_link_pic (info
))
5516 insn
= PLT_ENTRY_WORD0
+ (((sgot
->output_section
->vma
5517 + sgot
->output_offset
+ got_offset
) >> 12)
5519 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
5521 insn
= PLT_ENTRY_WORD1
+ (((sgot
->output_section
->vma
5522 + sgot
->output_offset
+ got_offset
) & 0x0fff)
5524 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
5526 insn
= PLT_ENTRY_WORD2
;
5527 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
5529 insn
= PLT_ENTRY_WORD3
+ (plt_index
& 0x7ffff);
5530 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
5532 insn
= PLT_ENTRY_WORD4
5533 + (((unsigned int) ((-(h
->plt
.offset
+ 16)) >> 1)) & 0xffffff);
5534 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
5535 local_plt_offset
= 12;
5539 /* sda_base must be set at this time. */
5543 /* FIXME, sda_base is 65536, it will damage opcode. */
5544 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5545 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ got_offset
5546 - elf_gp (output_bfd
);
5547 insn
= PLT_PIC_ENTRY_WORD0
+ ((offset
>> 12) & 0xfffff);
5548 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
);
5550 insn
= PLT_PIC_ENTRY_WORD1
+ (offset
& 0xfff);
5551 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 4);
5553 insn
= PLT_PIC_ENTRY_WORD2
;
5554 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 8);
5556 insn
= PLT_PIC_ENTRY_WORD3
;
5557 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 12);
5559 insn
= PLT_PIC_ENTRY_WORD4
+ (plt_index
& 0x7fffff);
5560 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 16);
5562 insn
= PLT_PIC_ENTRY_WORD5
5563 + (((unsigned int) ((-(h
->plt
.offset
+ 20)) >> 1)) & 0xffffff);
5564 bfd_putb32 (insn
, splt
->contents
+ h
->plt
.offset
+ 20);
5566 local_plt_offset
= 16;
5569 /* Fill in the entry in the global offset table,
5570 so it will fall through to the next instruction for the first time. */
5571 bfd_put_32 (output_bfd
,
5572 (splt
->output_section
->vma
+ splt
->output_offset
5573 + h
->plt
.offset
+ local_plt_offset
),
5574 sgot
->contents
+ got_offset
);
5576 /* Fill in the entry in the .rela.plt section. */
5577 rela
.r_offset
= (sgot
->output_section
->vma
5578 + sgot
->output_offset
+ got_offset
);
5579 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_JMP_SLOT
);
5581 loc
= srela
->contents
;
5582 loc
+= plt_index
* sizeof (Elf32_External_Rela
);
5583 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5585 if (!h
->def_regular
)
5587 /* Mark the symbol as undefined, rather than as defined in
5588 the .plt section. Leave the value alone. */
5589 sym
->st_shndx
= SHN_UNDEF
;
5590 if (!h
->ref_regular_nonweak
)
5595 if (h
->got
.offset
!= (bfd_vma
) - 1)
5599 Elf_Internal_Rela rela
;
5601 /* This symbol has an entry in the global offset table.
5605 srela
= htab
->srelgot
;
5606 BFD_ASSERT (sgot
!= NULL
&& srela
!= NULL
);
5608 rela
.r_offset
= (sgot
->output_section
->vma
5609 + sgot
->output_offset
+ (h
->got
.offset
& ~1));
5611 /* If this is a -Bsymbolic link, and the symbol is defined
5612 locally, we just want to emit a RELATIVE reloc. Likewise if
5613 the symbol was forced to be local because of a version file.
5614 The entry in the global offset table will already have been
5615 initialized in the relocate_section function. */
5616 if (bfd_link_pic (info
)
5618 || h
->dynindx
== -1 || h
->forced_local
) && h
->def_regular
)
5620 rela
.r_info
= ELF32_R_INFO (0, R_NDS32_RELATIVE
);
5621 rela
.r_addend
= (h
->root
.u
.def
.value
5622 + h
->root
.u
.def
.section
->output_section
->vma
5623 + h
->root
.u
.def
.section
->output_offset
);
5627 BFD_ASSERT ((h
->got
.offset
& 1) == 0);
5628 bfd_put_32 (output_bfd
, (bfd_vma
) 0,
5629 sgot
->contents
+ h
->got
.offset
);
5630 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_GLOB_DAT
);
5634 loc
= srela
->contents
;
5635 loc
+= srela
->reloc_count
* sizeof (Elf32_External_Rela
);
5636 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5637 ++srela
->reloc_count
;
5643 Elf_Internal_Rela rela
;
5645 /* This symbols needs a copy reloc. Set it up. */
5647 BFD_ASSERT (h
->dynindx
!= -1
5648 && (h
->root
.type
== bfd_link_hash_defined
5649 || h
->root
.type
== bfd_link_hash_defweak
));
5651 s
= bfd_get_section_by_name (h
->root
.u
.def
.section
->owner
, ".rela.bss");
5652 BFD_ASSERT (s
!= NULL
);
5654 rela
.r_offset
= (h
->root
.u
.def
.value
5655 + h
->root
.u
.def
.section
->output_section
->vma
5656 + h
->root
.u
.def
.section
->output_offset
);
5657 rela
.r_info
= ELF32_R_INFO (h
->dynindx
, R_NDS32_COPY
);
5660 loc
+= s
->reloc_count
* sizeof (Elf32_External_Rela
);
5661 bfd_elf32_swap_reloca_out (output_bfd
, &rela
, loc
);
5665 /* Mark some specially defined symbols as absolute. */
5666 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
5667 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0)
5668 sym
->st_shndx
= SHN_ABS
;
5674 /* Finish up the dynamic sections. */
5677 nds32_elf_finish_dynamic_sections (bfd
*output_bfd
, struct bfd_link_info
*info
)
5679 struct elf_nds32_link_hash_table
*htab
;
5684 htab
= nds32_elf_hash_table (info
);
5685 dynobj
= htab
->root
.dynobj
;
5687 sgot
= htab
->sgotplt
;
5688 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
5690 if (htab
->root
.dynamic_sections_created
)
5693 Elf32_External_Dyn
*dyncon
, *dynconend
;
5695 BFD_ASSERT (sgot
!= NULL
&& sdyn
!= NULL
);
5697 dyncon
= (Elf32_External_Dyn
*) sdyn
->contents
;
5698 dynconend
= (Elf32_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
5700 for (; dyncon
< dynconend
; dyncon
++)
5702 Elf_Internal_Dyn dyn
;
5705 bfd_elf32_swap_dyn_in (dynobj
, dyncon
, &dyn
);
5713 /* name = ".got"; */
5714 s
= htab
->sgot
->output_section
;
5717 s
= htab
->srelplt
->output_section
;
5719 BFD_ASSERT (s
!= NULL
);
5720 dyn
.d_un
.d_ptr
= s
->vma
;
5721 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5725 s
= htab
->srelplt
->output_section
;
5726 BFD_ASSERT (s
!= NULL
);
5727 dyn
.d_un
.d_val
= s
->size
;
5728 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5732 /* My reading of the SVR4 ABI indicates that the
5733 procedure linkage table relocs (DT_JMPREL) should be
5734 included in the overall relocs (DT_RELA). This is
5735 what Solaris does. However, UnixWare can not handle
5736 that case. Therefore, we override the DT_RELASZ entry
5737 here to make it not include the JMPREL relocs. Since
5738 the linker script arranges for .rela.plt to follow all
5739 other relocation sections, we don't have to worry
5740 about changing the DT_RELA entry. */
5741 if (htab
->srelplt
!= NULL
)
5743 s
= htab
->srelplt
->output_section
;
5744 dyn
.d_un
.d_val
-= s
->size
;
5746 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5751 /* Fill in the first entry in the procedure linkage table. */
5753 if (splt
&& splt
->size
> 0)
5755 if (bfd_link_pic (info
))
5760 /* FIXME, sda_base is 65536, it will damage opcode. */
5761 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5762 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4
5763 - elf_gp (output_bfd
);
5764 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
5765 bfd_putb32 (insn
, splt
->contents
);
5767 /* insn = PLT0_PIC_ENTRY_WORD0 | (((8 - sda_base) >> 2) & 0x7fff) ; */
5768 /* here has a typo? */
5769 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
5770 bfd_putb32 (insn
, splt
->contents
+ 4);
5772 insn
= PLT0_PIC_ENTRY_WORD2
;
5773 bfd_putb32 (insn
, splt
->contents
+ 8);
5775 insn
= PLT0_PIC_ENTRY_WORD3
;
5776 bfd_putb32 (insn
, splt
->contents
+ 12);
5778 insn
= PLT0_PIC_ENTRY_WORD4
;
5779 bfd_putb32 (insn
, splt
->contents
+ 16);
5781 insn
= PLT0_PIC_ENTRY_WORD5
;
5782 bfd_putb32 (insn
, splt
->contents
+ 20);
5789 /* addr = .got + 4 */
5790 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
5791 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
5792 bfd_putb32 (insn
, splt
->contents
);
5794 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
5795 bfd_putb32 (insn
, splt
->contents
+ 4);
5797 insn
= PLT0_ENTRY_WORD2
;
5798 bfd_putb32 (insn
, splt
->contents
+ 8);
5800 insn
= PLT0_ENTRY_WORD3
;
5801 bfd_putb32 (insn
, splt
->contents
+ 12);
5803 insn
= PLT0_ENTRY_WORD4
;
5804 bfd_putb32 (insn
, splt
->contents
+ 16);
5807 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
5812 /* Fill in the first three entries in the global offset table. */
5813 if (sgot
&& sgot
->size
> 0)
5816 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
5818 bfd_put_32 (output_bfd
,
5819 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
5821 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
5822 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
5824 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
5831 /* Set the right machine number. */
5834 nds32_elf_object_p (bfd
*abfd
)
5836 static unsigned int cur_arch
= 0;
5838 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
5840 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
5841 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
5848 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
5851 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
5853 case E_NDS_ARCH_STAR_V2_0
:
5854 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
5856 case E_NDS_ARCH_STAR_V3_0
:
5857 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
5859 case E_NDS_ARCH_STAR_V3_M
:
5860 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
5867 /* Store the machine number in the flags field. */
5870 nds32_elf_final_write_processing (bfd
*abfd
,
5871 bfd_boolean linker ATTRIBUTE_UNUSED
)
5874 static unsigned int cur_mach
= 0;
5876 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
5878 cur_mach
= bfd_get_mach (abfd
);
5884 /* Only happen when object is empty, since the case is abandon. */
5886 val
|= E_NDS_ABI_AABI
;
5887 val
|= E_NDS32_ELF_VER_1_4
;
5892 case bfd_mach_n1h_v2
:
5893 val
= E_NDS_ARCH_STAR_V2_0
;
5895 case bfd_mach_n1h_v3
:
5896 val
= E_NDS_ARCH_STAR_V3_0
;
5898 case bfd_mach_n1h_v3m
:
5899 val
= E_NDS_ARCH_STAR_V3_M
;
5906 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
5907 elf_elfheader (abfd
)->e_flags
|= val
;
5910 /* Function to keep NDS32 specific file flags. */
5913 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
5915 BFD_ASSERT (!elf_flags_init (abfd
)
5916 || elf_elfheader (abfd
)->e_flags
== flags
);
5918 elf_elfheader (abfd
)->e_flags
= flags
;
5919 elf_flags_init (abfd
) = TRUE
;
5924 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
5926 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
5928 /* From 0.9 to 1.0. */
5929 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
5931 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5932 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5933 if (arch
== E_NDS_ARCH_STAR_V1_0
)
5940 /* From 1.0 to 2.0. */
5941 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
5943 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
5944 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
5946 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5947 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5952 nds32_check_vec_size (bfd
*ibfd
)
5954 static unsigned int nds32_vec_size
= 0;
5956 asection
*sec_t
= NULL
;
5957 bfd_byte
*contents
= NULL
;
5959 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
5961 if (sec_t
&& sec_t
->size
>= 4)
5963 /* Get vec_size in file. */
5964 unsigned int flag_t
;
5966 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
5967 flag_t
= bfd_get_32 (ibfd
, contents
);
5969 /* The value could only be 4 or 16. */
5971 if (!nds32_vec_size
)
5972 /* Set if not set yet. */
5973 nds32_vec_size
= (flag_t
& 0x3);
5974 else if (nds32_vec_size
!= (flag_t
& 0x3))
5976 (*_bfd_error_handler
) (_("%B: ISR vector size mismatch"
5977 " with previous modules, previous %u-byte, current %u-byte"),
5979 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
5980 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
5984 /* Only keep the first vec_size section. */
5985 sec_t
->flags
|= SEC_EXCLUDE
;
5991 /* Merge backend specific data from an object file to the output
5992 object file when linking. */
5995 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
5999 flagword out_16regs
;
6001 flagword out_no_mac
;
6003 flagword out_version
;
6004 flagword in_version
;
6005 flagword out_fpu_config
;
6006 flagword in_fpu_config
;
6008 /* TODO: Revise to use object-attributes instead. */
6009 if (!nds32_check_vec_size (ibfd
))
6012 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6013 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6016 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6018 (*_bfd_error_handler
)
6019 (_("%B: warning: Endian mismatch with previous modules."), ibfd
);
6021 bfd_set_error (bfd_error_bad_value
);
6025 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6026 if (in_version
== E_NDS32_ELF_VER_1_2
)
6028 (*_bfd_error_handler
)
6029 (_("%B: warning: Older version of object file encountered, "
6030 "Please recompile with current tool chain."), ibfd
);
6033 /* We may need to merge V1 and V2 arch object files to V2. */
6034 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6035 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6037 /* Need to convert version. */
6038 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6039 == E_NDS_ARCH_STAR_RESERVED
)
6041 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6043 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
6044 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6045 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6047 elf_elfheader (obfd
)->e_flags
=
6048 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6049 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6053 elf_elfheader (ibfd
)->e_flags
=
6054 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6055 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6059 /* Extract some flags. */
6060 in_flags
= elf_elfheader (ibfd
)->e_flags
6061 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6062 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6064 /* The following flags need special treatment. */
6065 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6066 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6067 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6069 /* Extract some flags. */
6070 out_flags
= elf_elfheader (obfd
)->e_flags
6071 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6072 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6074 /* The following flags need special treatment. */
6075 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6076 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6077 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6078 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6079 if (!elf_flags_init (obfd
))
6081 /* If the input is the default architecture then do not
6082 bother setting the flags for the output architecture,
6083 instead allow future merges to do this. If no future
6084 merges ever set these flags then they will retain their
6085 unitialised values, which surprise surprise, correspond
6086 to the default values. */
6087 if (bfd_get_arch_info (ibfd
)->the_default
)
6090 elf_flags_init (obfd
) = TRUE
;
6091 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6093 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6094 && bfd_get_arch_info (obfd
)->the_default
)
6096 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6097 bfd_get_mach (ibfd
));
6103 /* Check flag compatibility. */
6104 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6106 (*_bfd_error_handler
)
6107 (_("%B: error: ABI mismatch with previous modules."), ibfd
);
6109 bfd_set_error (bfd_error_bad_value
);
6113 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6115 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6117 (*_bfd_error_handler
)
6118 (_("%B: error: Instruction set mismatch with previous modules."), ibfd
);
6120 bfd_set_error (bfd_error_bad_value
);
6125 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6126 and perf ext1 and DIV are mergerd to perf ext1. */
6127 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6129 elf_elfheader (obfd
)->e_flags
=
6130 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6131 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6132 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6133 ? E_NDS32_HAS_EXT_INST
: 0)
6134 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6135 ? E_NDS32_HAS_EXT_INST
: 0)
6136 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6137 | ((in_version
> out_version
) ? out_version
: in_version
);
6141 if (in_version
!= out_version
)
6142 (*_bfd_error_handler
) (_("%B: warning: Incompatible elf-versions %s and %s."),
6143 ibfd
, nds32_elfver_strtab
[out_version
],
6144 nds32_elfver_strtab
[in_version
]);
6146 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6147 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6148 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6149 | (in_version
> out_version
? out_version
: in_version
);
6155 /* Display the flags field. */
6158 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6160 FILE *file
= (FILE *) ptr
;
6162 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6164 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6166 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6168 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6172 fprintf (file
, _(": n1 instructions"));
6175 fprintf (file
, _(": n1h instructions"));
6185 nds32_elf_action_discarded (asection
*sec
)
6189 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6192 return _bfd_elf_default_action_discarded (sec
);
6196 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6197 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6198 Elf_Internal_Sym
*sym
)
6201 switch (ELF32_R_TYPE (rel
->r_info
))
6203 case R_NDS32_GNU_VTINHERIT
:
6204 case R_NDS32_GNU_VTENTRY
:
6205 case R_NDS32_RELA_GNU_VTINHERIT
:
6206 case R_NDS32_RELA_GNU_VTENTRY
:
6210 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6214 nds32_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
6215 const Elf_Internal_Rela
*relocs
)
6217 /* Update the got entry reference counts for the section being removed. */
6218 Elf_Internal_Shdr
*symtab_hdr
;
6219 struct elf_link_hash_entry
**sym_hashes
;
6220 bfd_signed_vma
*local_got_refcounts
;
6221 const Elf_Internal_Rela
*rel
, *relend
;
6223 elf_section_data (sec
)->local_dynrel
= NULL
;
6225 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6226 sym_hashes
= elf_sym_hashes (abfd
);
6227 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6229 relend
= relocs
+ sec
->reloc_count
;
6230 for (rel
= relocs
; rel
< relend
; rel
++)
6232 unsigned long r_symndx
;
6233 struct elf_link_hash_entry
*h
= NULL
;
6235 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6236 if (r_symndx
>= symtab_hdr
->sh_info
)
6238 /* External symbol. */
6239 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6240 while (h
->root
.type
== bfd_link_hash_indirect
6241 || h
->root
.type
== bfd_link_hash_warning
)
6242 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6245 switch (ELF32_R_TYPE (rel
->r_info
))
6247 case R_NDS32_GOT_HI20
:
6248 case R_NDS32_GOT_LO12
:
6249 case R_NDS32_GOT_LO15
:
6250 case R_NDS32_GOT_LO19
:
6251 case R_NDS32_GOT17S2_RELA
:
6252 case R_NDS32_GOT15S2_RELA
:
6253 case R_NDS32_GOTOFF
:
6254 case R_NDS32_GOTOFF_HI20
:
6255 case R_NDS32_GOTOFF_LO12
:
6256 case R_NDS32_GOTOFF_LO15
:
6257 case R_NDS32_GOTOFF_LO19
:
6259 case R_NDS32_GOTPC_HI20
:
6260 case R_NDS32_GOTPC_LO12
:
6261 case R_NDS32_GOTPC20
:
6264 if (h
->got
.refcount
> 0)
6269 if (local_got_refcounts
&& local_got_refcounts
[r_symndx
] > 0)
6270 local_got_refcounts
[r_symndx
]--;
6274 case R_NDS32_16_RELA
:
6275 case R_NDS32_20_RELA
:
6276 case R_NDS32_5_RELA
:
6277 case R_NDS32_32_RELA
:
6278 case R_NDS32_HI20_RELA
:
6279 case R_NDS32_LO12S3_RELA
:
6280 case R_NDS32_LO12S2_RELA
:
6281 case R_NDS32_LO12S2_DP_RELA
:
6282 case R_NDS32_LO12S2_SP_RELA
:
6283 case R_NDS32_LO12S1_RELA
:
6284 case R_NDS32_LO12S0_RELA
:
6285 case R_NDS32_LO12S0_ORI_RELA
:
6286 case R_NDS32_SDA16S3_RELA
:
6287 case R_NDS32_SDA17S2_RELA
:
6288 case R_NDS32_SDA18S1_RELA
:
6289 case R_NDS32_SDA19S0_RELA
:
6290 case R_NDS32_SDA15S3_RELA
:
6291 case R_NDS32_SDA15S2_RELA
:
6292 case R_NDS32_SDA12S2_DP_RELA
:
6293 case R_NDS32_SDA12S2_SP_RELA
:
6294 case R_NDS32_SDA15S1_RELA
:
6295 case R_NDS32_SDA15S0_RELA
:
6296 case R_NDS32_SDA_FP7U2_RELA
:
6297 case R_NDS32_15_PCREL_RELA
:
6298 case R_NDS32_17_PCREL_RELA
:
6299 case R_NDS32_25_PCREL_RELA
:
6302 struct elf_nds32_link_hash_entry
*eh
;
6303 struct elf_nds32_dyn_relocs
**pp
;
6304 struct elf_nds32_dyn_relocs
*p
;
6306 if (!bfd_link_pic (info
) && h
->plt
.refcount
> 0)
6307 h
->plt
.refcount
-= 1;
6309 eh
= (struct elf_nds32_link_hash_entry
*) h
;
6311 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
6314 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6315 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
6316 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
6326 case R_NDS32_9_PLTREL
:
6327 case R_NDS32_25_PLTREL
:
6330 if (h
->plt
.refcount
> 0)
6343 /* Look through the relocs for a section during the first phase.
6344 Since we don't do .gots or .plts, we just need to consider the
6345 virtual table relocs for gc. */
6348 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
6349 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6351 Elf_Internal_Shdr
*symtab_hdr
;
6352 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
6353 const Elf_Internal_Rela
*rel
;
6354 const Elf_Internal_Rela
*rel_end
;
6355 struct elf_nds32_link_hash_table
*htab
;
6357 asection
*sreloc
= NULL
;
6359 if (bfd_link_relocatable (info
))
6362 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6363 sym_hashes
= elf_sym_hashes (abfd
);
6365 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
6366 if (!elf_bad_symtab (abfd
))
6367 sym_hashes_end
-= symtab_hdr
->sh_info
;
6369 htab
= nds32_elf_hash_table (info
);
6370 dynobj
= htab
->root
.dynobj
;
6372 rel_end
= relocs
+ sec
->reloc_count
;
6373 for (rel
= relocs
; rel
< rel_end
; rel
++)
6375 enum elf_nds32_reloc_type r_type
;
6376 struct elf_link_hash_entry
*h
;
6377 unsigned long r_symndx
;
6378 int tls_type
, old_tls_type
;
6380 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6381 r_type
= ELF32_R_TYPE (rel
->r_info
);
6382 if (r_symndx
< symtab_hdr
->sh_info
)
6386 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6387 while (h
->root
.type
== bfd_link_hash_indirect
6388 || h
->root
.type
== bfd_link_hash_warning
)
6389 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6392 /* Some relocs require a global offset table. We create
6393 got section here, since these relocation need got section
6394 and it is not created yet. */
6395 if (htab
->sgot
== NULL
)
6399 case R_NDS32_GOT_HI20
:
6400 case R_NDS32_GOT_LO12
:
6401 case R_NDS32_GOT_LO15
:
6402 case R_NDS32_GOT_LO19
:
6403 case R_NDS32_GOT17S2_RELA
:
6404 case R_NDS32_GOT15S2_RELA
:
6405 case R_NDS32_GOTOFF
:
6406 case R_NDS32_GOTOFF_HI20
:
6407 case R_NDS32_GOTOFF_LO12
:
6408 case R_NDS32_GOTOFF_LO15
:
6409 case R_NDS32_GOTOFF_LO19
:
6410 case R_NDS32_GOTPC20
:
6411 case R_NDS32_GOTPC_HI20
:
6412 case R_NDS32_GOTPC_LO12
:
6414 case R_NDS32_TLS_IE_HI20
:
6415 case R_NDS32_TLS_IE_LO12S2
:
6417 htab
->root
.dynobj
= dynobj
= abfd
;
6418 if (!create_got_section (dynobj
, info
))
6427 switch ((int) r_type
)
6429 case R_NDS32_GOT_HI20
:
6430 case R_NDS32_GOT_LO12
:
6431 case R_NDS32_GOT_LO15
:
6432 case R_NDS32_GOT_LO19
:
6434 case R_NDS32_TLS_IE_HI20
:
6435 case R_NDS32_TLS_IE_LO12S2
:
6438 case R_NDS32_TLS_IE_HI20
:
6439 case R_NDS32_TLS_IE_LO12S2
:
6440 tls_type
= GOT_TLS_IE
;
6443 tls_type
= GOT_NORMAL
;
6448 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
6449 h
->got
.refcount
+= 1;
6453 bfd_signed_vma
*local_got_refcounts
;
6455 /* This is a global offset table entry for a local
6457 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6458 if (local_got_refcounts
== NULL
)
6462 size
= symtab_hdr
->sh_info
;
6463 size
*= sizeof (bfd_signed_vma
);
6464 local_got_refcounts
= (bfd_signed_vma
*) bfd_zalloc (abfd
, size
);
6465 if (local_got_refcounts
== NULL
)
6467 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
6469 local_got_refcounts
[r_symndx
] += 1;
6470 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
6473 /* We will already have issued an error message if there
6474 is a TLS/non-TLS mismatch, based on the symbol
6475 type. So just combine any TLS types needed. */
6476 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
6477 && tls_type
!= GOT_NORMAL
)
6478 tls_type
|= old_tls_type
;
6480 if (old_tls_type
!= tls_type
)
6483 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
6485 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
6488 case R_NDS32_9_PLTREL
:
6489 case R_NDS32_25_PLTREL
:
6490 case R_NDS32_PLTREL_HI20
:
6491 case R_NDS32_PLTREL_LO12
:
6492 case R_NDS32_PLT_GOTREL_HI20
:
6493 case R_NDS32_PLT_GOTREL_LO12
:
6494 case R_NDS32_PLT_GOTREL_LO15
:
6495 case R_NDS32_PLT_GOTREL_LO19
:
6496 case R_NDS32_PLT_GOTREL_LO20
:
6498 /* This symbol requires a procedure linkage table entry. We
6499 actually build the entry in adjust_dynamic_symbol,
6500 because this might be a case of linking PIC code without
6501 linking in any dynamic objects, in which case we don't
6502 need to generate a procedure linkage table after all. */
6504 /* If this is a local symbol, we resolve it directly without
6505 creating a procedure linkage table entry. */
6509 if (h
->forced_local
)
6512 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
6514 h
->plt
.refcount
+= 1;
6517 case R_NDS32_16_RELA
:
6518 case R_NDS32_20_RELA
:
6519 case R_NDS32_5_RELA
:
6520 case R_NDS32_32_RELA
:
6521 case R_NDS32_HI20_RELA
:
6522 case R_NDS32_LO12S3_RELA
:
6523 case R_NDS32_LO12S2_RELA
:
6524 case R_NDS32_LO12S2_DP_RELA
:
6525 case R_NDS32_LO12S2_SP_RELA
:
6526 case R_NDS32_LO12S1_RELA
:
6527 case R_NDS32_LO12S0_RELA
:
6528 case R_NDS32_LO12S0_ORI_RELA
:
6529 case R_NDS32_SDA16S3_RELA
:
6530 case R_NDS32_SDA17S2_RELA
:
6531 case R_NDS32_SDA18S1_RELA
:
6532 case R_NDS32_SDA19S0_RELA
:
6533 case R_NDS32_SDA15S3_RELA
:
6534 case R_NDS32_SDA15S2_RELA
:
6535 case R_NDS32_SDA12S2_DP_RELA
:
6536 case R_NDS32_SDA12S2_SP_RELA
:
6537 case R_NDS32_SDA15S1_RELA
:
6538 case R_NDS32_SDA15S0_RELA
:
6539 case R_NDS32_SDA_FP7U2_RELA
:
6540 case R_NDS32_15_PCREL_RELA
:
6541 case R_NDS32_17_PCREL_RELA
:
6542 case R_NDS32_25_PCREL_RELA
:
6544 if (h
!= NULL
&& !bfd_link_pic (info
))
6547 h
->plt
.refcount
+= 1;
6550 /* If we are creating a shared library, and this is a reloc against
6551 a global symbol, or a non PC relative reloc against a local
6552 symbol, then we need to copy the reloc into the shared library.
6553 However, if we are linking with -Bsymbolic, we do not need to
6554 copy a reloc against a global symbol which is defined in an
6555 object we are including in the link (i.e., DEF_REGULAR is set).
6556 At this point we have not seen all the input files, so it is
6557 possible that DEF_REGULAR is not set now but will be set later
6558 (it is never cleared). We account for that possibility below by
6559 storing information in the dyn_relocs field of the hash table
6560 entry. A similar situation occurs when creating shared libraries
6561 and symbol visibility changes render the symbol local.
6563 If on the other hand, we are creating an executable, we may need
6564 to keep relocations for symbols satisfied by a dynamic library
6565 if we manage to avoid copy relocs for the symbol. */
6566 if ((bfd_link_pic (info
)
6567 && (sec
->flags
& SEC_ALLOC
) != 0
6568 && ((r_type
!= R_NDS32_25_PCREL_RELA
6569 && r_type
!= R_NDS32_15_PCREL_RELA
6570 && r_type
!= R_NDS32_17_PCREL_RELA
6571 && !(r_type
== R_NDS32_32_RELA
6572 && strcmp (sec
->name
, ".eh_frame") == 0))
6575 || h
->root
.type
== bfd_link_hash_defweak
6576 || !h
->def_regular
))))
6577 || (!bfd_link_pic (info
)
6578 && (sec
->flags
& SEC_ALLOC
) != 0
6580 && (h
->root
.type
== bfd_link_hash_defweak
6581 || !h
->def_regular
)))
6583 struct elf_nds32_dyn_relocs
*p
;
6584 struct elf_nds32_dyn_relocs
**head
;
6587 htab
->root
.dynobj
= dynobj
= abfd
;
6589 /* When creating a shared object, we must copy these
6590 relocs into the output file. We create a reloc
6591 section in dynobj and make room for the reloc. */
6596 name
= bfd_elf_string_from_elf_section
6597 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
6598 elf_section_data (sec
)->rela
.hdr
->sh_name
);
6602 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
6603 && strcmp (bfd_get_section_name (abfd
, sec
),
6606 sreloc
= bfd_get_section_by_name (dynobj
, name
);
6611 sreloc
= bfd_make_section (dynobj
, name
);
6612 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
6613 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
6614 if ((sec
->flags
& SEC_ALLOC
) != 0)
6615 flags
|= SEC_ALLOC
| SEC_LOAD
;
6617 || !bfd_set_section_flags (dynobj
, sreloc
, flags
)
6618 || !bfd_set_section_alignment (dynobj
, sreloc
, 2))
6621 elf_section_type (sreloc
) = SHT_RELA
;
6623 elf_section_data (sec
)->sreloc
= sreloc
;
6626 /* If this is a global symbol, we count the number of
6627 relocations we need for this symbol. */
6629 head
= &((struct elf_nds32_link_hash_entry
*) h
)->dyn_relocs
;
6634 Elf_Internal_Sym
*isym
;
6635 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
6639 /* Track dynamic relocs needed for local syms too. */
6640 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6644 head
= ((struct elf_nds32_dyn_relocs
**)
6645 &elf_section_data (s
)->local_dynrel
);
6649 if (p
== NULL
|| p
->sec
!= sec
)
6651 bfd_size_type amt
= sizeof (*p
);
6652 p
= (struct elf_nds32_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
6663 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
6664 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6665 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
)
6670 /* This relocation describes the C++ object vtable hierarchy.
6671 Reconstruct it for later use during GC. */
6672 case R_NDS32_RELA_GNU_VTINHERIT
:
6673 case R_NDS32_GNU_VTINHERIT
:
6674 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
6678 /* This relocation describes which C++ vtable entries are actually
6679 used. Record for later use during GC. */
6680 case R_NDS32_GNU_VTENTRY
:
6681 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
6684 case R_NDS32_RELA_GNU_VTENTRY
:
6685 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
6694 /* Write VAL in uleb128 format to P, returning a pointer to the
6696 This code is copied from elf-attr.c. */
6699 write_uleb128 (bfd_byte
*p
, unsigned int val
)
6714 static bfd_signed_vma
6715 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
6716 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
6717 int *pic_ext_target
)
6719 bfd_signed_vma foff
;
6720 bfd_vma symval
, addend
;
6723 /* Get the value of the symbol referred to by the reloc. */
6724 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6726 Elf_Internal_Sym
*isym
;
6728 /* A local symbol. */
6729 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6731 if (isym
->st_shndx
== SHN_UNDEF
)
6732 sym_sec
= bfd_und_section_ptr
;
6733 else if (isym
->st_shndx
== SHN_ABS
)
6734 sym_sec
= bfd_abs_section_ptr
;
6735 else if (isym
->st_shndx
== SHN_COMMON
)
6736 sym_sec
= bfd_com_section_ptr
;
6738 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6739 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6740 + sym_sec
->output_offset
;
6745 struct elf_link_hash_entry
*h
;
6748 /* An external symbol. */
6749 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6750 h
= elf_sym_hashes (abfd
)[indx
];
6751 BFD_ASSERT (h
!= NULL
);
6753 if (h
->root
.type
!= bfd_link_hash_defined
6754 && h
->root
.type
!= bfd_link_hash_defweak
)
6755 /* This appears to be a reference to an undefined
6756 symbol. Just ignore it--it will be caught by the
6757 regular reloc processing. */
6759 owner
= h
->root
.u
.def
.section
->owner
;
6760 if (owner
&& (elf_elfheader (owner
)->e_flags
& E_NDS32_HAS_PIC
))
6761 *pic_ext_target
= 1;
6763 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
6765 sym_sec
= h
->root
.u
.def
.section
;
6766 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
6767 elf_section_data (sym_sec
)->sec_info
,
6768 h
->root
.u
.def
.value
);
6769 symval
= symval
+ sym_sec
->output_section
->vma
6770 + sym_sec
->output_offset
;
6773 symval
= (h
->root
.u
.def
.value
6774 + h
->root
.u
.def
.section
->output_section
->vma
6775 + h
->root
.u
.def
.section
->output_offset
);
6778 addend
= irel
->r_addend
;
6780 foff
= (symval
+ addend
6781 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
6786 calculate_plt_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
6787 Elf_Internal_Sym
*isymbuf
,
6788 Elf_Internal_Rela
*irel
,
6789 Elf_Internal_Shdr
*symtab_hdr
)
6793 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6795 Elf_Internal_Sym
*isym
;
6797 /* A local symbol. */
6798 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6800 if (isym
->st_shndx
== SHN_UNDEF
)
6801 sym_sec
= bfd_und_section_ptr
;
6802 else if (isym
->st_shndx
== SHN_ABS
)
6803 sym_sec
= bfd_abs_section_ptr
;
6804 else if (isym
->st_shndx
== SHN_COMMON
)
6805 sym_sec
= bfd_com_section_ptr
;
6807 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6808 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6809 + sym_sec
->output_offset
;
6814 struct elf_link_hash_entry
*h
;
6815 struct elf_nds32_link_hash_table
*htab
;
6818 /* An external symbol. */
6819 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6820 h
= elf_sym_hashes (abfd
)[indx
];
6821 BFD_ASSERT (h
!= NULL
);
6822 htab
= nds32_elf_hash_table (link_info
);
6825 while (h
->root
.type
== bfd_link_hash_indirect
6826 || h
->root
.type
== bfd_link_hash_warning
)
6827 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6829 if (h
->plt
.offset
== (bfd_vma
) - 1)
6831 if (h
->root
.type
!= bfd_link_hash_defined
6832 && h
->root
.type
!= bfd_link_hash_defweak
)
6833 /* This appears to be a reference to an undefined
6834 * symbol. Just ignore it--it will be caught by the
6835 * regular reloc processing. */
6837 symval
= (h
->root
.u
.def
.value
6838 + h
->root
.u
.def
.section
->output_section
->vma
6839 + h
->root
.u
.def
.section
->output_offset
);
6842 symval
= splt
->output_section
->vma
+ h
->plt
.offset
;
6848 static bfd_signed_vma
6849 calculate_plt_offset (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
6850 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Rela
*irel
,
6851 Elf_Internal_Shdr
*symtab_hdr
)
6854 if ((foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
6858 return foff
- (irel
->r_offset
6859 + sec
->output_section
->vma
+ sec
->output_offset
);
6862 /* Convert a 32-bit instruction to 16-bit one.
6863 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
6864 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
6865 type of INSN16. Return 1 if successful. */
6868 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
6871 uint16_t insn16
= 0;
6873 unsigned long mach
= bfd_get_mach (abfd
);
6875 if (N32_SH5 (insn
) != 0)
6878 switch (N32_SUB5 (insn
))
6880 case N32_ALU1_ADD_SLLI
:
6881 case N32_ALU1_ADD_SRLI
:
6882 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6884 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
6886 insn_type
= NDS32_INSN_ADD333
;
6888 else if (N32_IS_RT4 (insn
))
6890 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6891 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
6892 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6893 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
6894 insn_type
= NDS32_INSN_ADD45
;
6898 case N32_ALU1_SUB_SLLI
:
6899 case N32_ALU1_SUB_SRLI
:
6900 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6902 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
6904 insn_type
= NDS32_INSN_SUB333
;
6906 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6908 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
6909 insn_type
= NDS32_INSN_SUB45
;
6913 case N32_ALU1_AND_SLLI
:
6914 case N32_ALU1_AND_SRLI
:
6915 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
6916 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6917 && N32_IS_RB3 (insn
))
6919 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6920 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
6921 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6922 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
6924 insn_type
= NDS32_INSN_AND33
;
6928 case N32_ALU1_XOR_SLLI
:
6929 case N32_ALU1_XOR_SRLI
:
6930 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
6931 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6932 && N32_IS_RB3 (insn
))
6934 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6935 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6936 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6937 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6939 insn_type
= NDS32_INSN_XOR33
;
6943 case N32_ALU1_OR_SLLI
:
6944 case N32_ALU1_OR_SRLI
:
6945 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
6946 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6947 && N32_IS_RB3 (insn
))
6949 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6950 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6951 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6952 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6954 insn_type
= NDS32_INSN_OR33
;
6958 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
6959 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
6960 && N32_RA5 (insn
) == N32_RB5 (insn
))
6962 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
6963 insn_type
= NDS32_INSN_NOT33
;
6967 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6969 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6970 insn_type
= NDS32_INSN_SRAI45
;
6975 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6977 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6978 insn_type
= NDS32_INSN_SRLI45
;
6983 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
6985 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
6987 insn_type
= NDS32_INSN_SLLI333
;
6992 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
6994 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
6995 insn_type
= NDS32_INSN_ZEH33
;
7000 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7002 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7003 insn_type
= NDS32_INSN_SEB33
;
7008 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7010 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7011 insn_type
= NDS32_INSN_SEH33
;
7016 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7019 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7020 insn_type
= NDS32_INSN_SLT45
;
7025 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7028 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7029 insn_type
= NDS32_INSN_SLTS45
;
7034 if ((insn16
& 0x8000) == 0)
7040 *pinsn_type
= insn_type
;
7045 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7048 uint16_t insn16
= 0;
7050 unsigned long mach
= bfd_get_mach (abfd
);
7052 /* TODO: bset, bclr, btgl, btst. */
7053 if (__GF (insn
, 6, 4) != 0)
7056 switch (N32_IMMU (insn
, 6))
7059 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7060 && N32_IS_RB3 (insn
))
7062 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7063 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7064 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7065 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7067 insn_type
= NDS32_INSN_MUL33
;
7071 if ((insn16
& 0x8000) == 0)
7077 *pinsn_type
= insn_type
;
7082 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7086 uint16_t insn16
= 0;
7088 unsigned long mach
= bfd_get_mach (abfd
);
7090 /* Decode 32-bit instruction. */
7091 if (insn
& 0x80000000)
7093 /* Not 32-bit insn. */
7097 op6
= N32_OP6 (insn
);
7099 /* Convert it to 16-bit instruction. */
7103 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7105 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7106 insn_type
= NDS32_INSN_MOVI55
;
7108 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7109 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7111 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7112 N32_IMM20S (insn
) - 16);
7113 insn_type
= NDS32_INSN_MOVPI45
;
7118 if (N32_IMM15S (insn
) == 0)
7120 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7121 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7123 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7125 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7126 insn_type
= NDS32_INSN_MOV55
;
7129 else if (N32_IMM15S (insn
) > 0)
7131 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7133 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7135 insn_type
= NDS32_INSN_ADDI333
;
7137 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7138 && N32_IMM15S (insn
) < 32)
7140 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7141 insn_type
= NDS32_INSN_ADDI45
;
7143 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7144 && N32_RT5 (insn
) == N32_RA5 (insn
)
7145 && N32_IMM15S (insn
) < 512)
7147 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7148 insn_type
= NDS32_INSN_ADDI10_SP
;
7150 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7151 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7152 && (N32_IMM15S (insn
) % 4 == 0))
7154 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7155 N32_IMM15S (insn
) >> 2);
7156 insn_type
= NDS32_INSN_ADDRI36_SP
;
7162 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7164 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7165 0 - N32_IMM15S (insn
));
7166 insn_type
= NDS32_INSN_SUBI333
;
7168 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7169 && N32_IMM15S (insn
) > -32)
7171 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7172 0 - N32_IMM15S (insn
));
7173 insn_type
= NDS32_INSN_SUBI45
;
7175 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7176 && N32_RT5 (insn
) == N32_RA5 (insn
)
7177 && N32_IMM15S (insn
) >= -512)
7179 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7180 insn_type
= NDS32_INSN_ADDI10_SP
;
7186 if (N32_IMM15S (insn
) == 0)
7188 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7189 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7191 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7193 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7194 insn_type
= NDS32_INSN_MOV55
;
7200 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7201 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7203 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7204 insn_type
= NDS32_INSN_NEG33
;
7209 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7211 if (N32_IMM15U (insn
) == 1)
7213 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7214 insn_type
= NDS32_INSN_XLSB33
;
7216 else if (N32_IMM15U (insn
) == 0x7ff)
7218 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7219 insn_type
= NDS32_INSN_X11B33
;
7221 else if (N32_IMM15U (insn
) == 0xff)
7223 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7224 insn_type
= NDS32_INSN_ZEB33
;
7226 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7227 && N32_IMM15U (insn
) < 256)
7229 int imm15u
= N32_IMM15U (insn
);
7231 if (__builtin_popcount (imm15u
) == 1)
7234 int imm3u
= __builtin_ctz (imm15u
);
7236 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7237 insn_type
= NDS32_INSN_BMSKI33
;
7239 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7242 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7244 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7245 insn_type
= NDS32_INSN_FEXTI33
;
7252 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7253 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7255 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7256 insn_type
= NDS32_INSN_SLTI45
;
7261 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7262 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7264 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7265 insn_type
= NDS32_INSN_SLTSI45
;
7270 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7272 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7273 insn_type
= NDS32_INSN_LWI450
;
7275 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7276 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7278 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7280 insn_type
= NDS32_INSN_LWI333
;
7282 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7283 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7285 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7286 insn_type
= NDS32_INSN_LWI37
;
7288 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7289 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7291 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7292 insn_type
= NDS32_INSN_LWI37_SP
;
7294 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7295 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7297 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7298 N32_IMM15S (insn
) + 32);
7299 insn_type
= NDS32_INSN_LWI45_FE
;
7304 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7306 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7307 insn_type
= NDS32_INSN_SWI450
;
7309 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7310 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7312 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7314 insn_type
= NDS32_INSN_SWI333
;
7316 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7317 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7319 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7320 insn_type
= NDS32_INSN_SWI37
;
7322 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7323 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7325 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7326 insn_type
= NDS32_INSN_SWI37_SP
;
7330 case N32_OP6_LWI_BI
:
7331 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7332 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7334 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7336 insn_type
= NDS32_INSN_LWI333_BI
;
7340 case N32_OP6_SWI_BI
:
7341 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7342 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7344 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7346 insn_type
= NDS32_INSN_SWI333_BI
;
7351 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7352 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7354 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7356 insn_type
= NDS32_INSN_LHI333
;
7361 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7362 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7364 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7366 insn_type
= NDS32_INSN_SHI333
;
7371 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7372 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7374 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7376 insn_type
= NDS32_INSN_LBI333
;
7381 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7382 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7384 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7386 insn_type
= NDS32_INSN_SBI333
;
7391 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
7394 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
7397 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
7400 if ((insn
& __BIT (14)) == 0)
7403 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7404 && N32_RT5 (insn
) != REG_R5
)
7405 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7406 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7407 && N32_RA5 (insn
) != REG_R5
)
7408 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7409 insn_type
= NDS32_INSN_BEQS38
;
7415 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7416 && N32_RT5 (insn
) != REG_R5
)
7417 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7418 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7419 && N32_RA5 (insn
) != REG_R5
)
7420 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7421 insn_type
= NDS32_INSN_BNES38
;
7427 switch (N32_BR2_SUB (insn
))
7430 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7432 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7433 insn_type
= NDS32_INSN_BEQZ38
;
7435 else if (N32_RT5 (insn
) == REG_R15
7436 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7438 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
7439 insn_type
= NDS32_INSN_BEQZS8
;
7444 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7446 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7447 insn_type
= NDS32_INSN_BNEZ38
;
7449 else if (N32_RT5 (insn
) == REG_R15
7450 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7452 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
7453 insn_type
= NDS32_INSN_BNEZS8
;
7457 case N32_BR2_IFCALL
:
7458 if (IS_WITHIN_U (N32_IMM16S (insn
), 9))
7460 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
7461 insn_type
= NDS32_INSN_IFCALL9
;
7468 if ((insn
& __BIT (24)) == 0)
7471 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
7473 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
7474 insn_type
= NDS32_INSN_J8
;
7480 if (__GF (insn
, 8, 2) != 0)
7483 switch (N32_IMMU (insn
, 5))
7486 if (N32_JREG_HINT (insn
) == 0)
7489 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
7490 insn_type
= NDS32_INSN_JR5
;
7492 else if (N32_JREG_HINT (insn
) == 1)
7495 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
7496 insn_type
= NDS32_INSN_RET5
;
7498 else if (N32_JREG_HINT (insn
) == 3)
7500 /* ifret = mov55 $sp, $sp */
7501 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
7502 insn_type
= NDS32_INSN_IFRET
;
7507 /* It's convertible when return rt5 is $lp and address
7508 translation is kept. */
7509 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
7511 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
7512 insn_type
= NDS32_INSN_JRAL5
;
7519 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
7521 /* For v3, swid above 31 are used for ex9.it. */
7522 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
7523 insn_type
= NDS32_INSN_BREAK16
;
7528 /* This instruction has no 16-bit variant. */
7533 /* Bit-15 of insn16 should be set for a valid instruction. */
7534 if ((insn16
& 0x8000) == 0)
7540 *pinsn_type
= insn_type
;
7545 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
7546 Elf_Internal_Rela
*reloc
)
7548 uint16_t insn16
= 0;
7550 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
7551 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
7554 if (!N32_IS_RT3 (insn
))
7557 switch (N32_OP6 (insn
))
7560 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7561 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7564 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7565 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7568 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
7571 if (__GF (insn
, 17, 3) == 6)
7572 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
7573 else if (__GF (insn
, 17, 3) == 7)
7574 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
7578 if ((insn16
& 0x8000) == 0)
7585 /* Convert a 16-bit instruction to 32-bit one.
7586 INSN16 it the input and PINSN it the point to output.
7587 Return non-zero on successful. Otherwise 0 is returned. */
7590 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
7592 uint32_t insn
= 0xffffffff;
7593 unsigned long mach
= bfd_get_mach (abfd
);
7595 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
7597 switch (__GF (insn16
, 9, 6))
7599 case 0x4: /* add45 */
7600 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7603 case 0x5: /* sub45 */
7604 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7607 case 0x6: /* addi45 */
7608 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7609 N16_IMM5U (insn16
));
7611 case 0x7: /* subi45 */
7612 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7613 -N16_IMM5U (insn16
));
7615 case 0x8: /* srai45 */
7616 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7617 N16_IMM5U (insn16
));
7619 case 0x9: /* srli45 */
7620 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7621 N16_IMM5U (insn16
));
7623 case 0xa: /* slli333 */
7624 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7625 N16_IMM3U (insn16
));
7627 case 0xc: /* add333 */
7628 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7631 case 0xd: /* sub333 */
7632 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7635 case 0xe: /* addi333 */
7636 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7637 N16_IMM3U (insn16
));
7639 case 0xf: /* subi333 */
7640 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7641 -N16_IMM3U (insn16
));
7643 case 0x10: /* lwi333 */
7644 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7645 N16_IMM3U (insn16
));
7647 case 0x12: /* lhi333 */
7648 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7649 N16_IMM3U (insn16
));
7651 case 0x13: /* lbi333 */
7652 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7653 N16_IMM3U (insn16
));
7655 case 0x11: /* lwi333.bi */
7656 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7657 N16_IMM3U (insn16
));
7659 case 0x14: /* swi333 */
7660 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7661 N16_IMM3U (insn16
));
7663 case 0x16: /* shi333 */
7664 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7665 N16_IMM3U (insn16
));
7667 case 0x17: /* sbi333 */
7668 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7669 N16_IMM3U (insn16
));
7671 case 0x15: /* swi333.bi */
7672 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7673 N16_IMM3U (insn16
));
7675 case 0x18: /* addri36.sp */
7676 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
7677 N16_IMM6U (insn16
) << 2);
7679 case 0x19: /* lwi45.fe */
7680 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
7681 (N16_IMM5U (insn16
) - 32));
7683 case 0x1a: /* lwi450 */
7684 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7686 case 0x1b: /* swi450 */
7687 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7690 /* These are r15 implied instructions. */
7691 case 0x30: /* slts45 */
7692 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7694 case 0x31: /* slt45 */
7695 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7697 case 0x32: /* sltsi45 */
7698 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7700 case 0x33: /* slti45 */
7701 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7703 case 0x34: /* beqzs8, bnezs8 */
7704 if (insn16
& __BIT (8))
7705 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
7707 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
7710 case 0x35: /* break16, ex9.it */
7711 /* Only consider range of v3 break16. */
7712 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
7715 case 0x3c: /* ifcall9 */
7716 insn
= N32_BR2 (IFCALL
, 0, N16_IMM9U (insn16
));
7718 case 0x3d: /* movpi45 */
7719 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
7722 case 0x3f: /* MISC33 */
7723 switch (insn16
& 0x7)
7726 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7729 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7733 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7737 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7741 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7745 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7752 switch (insn16
& 0x7)
7755 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
7758 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7761 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7764 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7766 case 4: /* xlsb33 */
7767 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
7769 case 5: /* x11b33 */
7770 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
7772 case 6: /* bmski33 */
7773 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7774 1 << __GF (insn16
, 3, 3));
7776 case 7: /* fexti33 */
7777 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7778 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
7784 switch (__GF (insn16
, 10, 5))
7786 case 0x0: /* mov55 or ifret16 */
7787 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
7788 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
7789 insn
= N32_JREG (JR
, 0, 0, 0, 3);
7791 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
7793 case 0x1: /* movi55 */
7794 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
7796 case 0x1b: /* addi10s (V2) */
7797 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
7801 switch (__GF (insn16
, 11, 4))
7803 case 0x7: /* lwi37.fp/swi37.fp */
7804 if (insn16
& __BIT (7)) /* swi37.fp */
7805 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7807 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7809 case 0x8: /* beqz38 */
7810 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7812 case 0x9: /* bnez38 */
7813 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7815 case 0xa: /* beqs38/j8, implied r5 */
7816 if (N16_RT38 (insn16
) == 5)
7817 insn
= N32_JI (J
, N16_IMM8S (insn16
));
7819 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7821 case 0xb: /* bnes38 and others */
7822 if (N16_RT38 (insn16
) == 5)
7824 switch (__GF (insn16
, 5, 3))
7827 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
7830 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
7833 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
7835 case 2: /* ex9.it imm5 */
7836 /* ex9.it had no 32-bit variantl. */
7838 case 5: /* add5.pc */
7839 /* add5.pc had no 32-bit variantl. */
7844 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7846 case 0xe: /* lwi37/swi37 */
7847 if (insn16
& (1 << 7)) /* swi37.sp */
7848 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7850 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7855 if (insn
& 0x80000000)
7864 is_sda_access_insn (unsigned long insn
)
7866 switch (N32_OP6 (insn
))
7887 static unsigned long
7888 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
7894 case R_NDS32_GOT_LO12
:
7895 case R_NDS32_GOTOFF_LO12
:
7896 case R_NDS32_PLTREL_LO12
:
7897 case R_NDS32_PLT_GOTREL_LO12
:
7898 case R_NDS32_LO12S0_RELA
:
7899 switch (N32_OP6 (insn
))
7903 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
7907 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
7911 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
7915 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
7920 case R_NDS32_LO12S1_RELA
:
7921 switch (N32_OP6 (insn
))
7925 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
7929 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
7933 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
7938 case R_NDS32_LO12S2_RELA
:
7939 switch (N32_OP6 (insn
))
7943 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
7947 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
7952 case R_NDS32_LO12S2_DP_RELA
:
7953 case R_NDS32_LO12S2_SP_RELA
:
7954 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
7964 /* Linker hasn't found the correct merge section for non-section symbol
7965 in relax time, this work is left to the function elf_link_input_bfd().
7966 So for non-section symbol, _bfd_merged_section_offset is also needed
7967 to find the correct symbol address. */
7970 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
7971 asection
**psec
, Elf_Internal_Rela
*rel
)
7973 asection
*sec
= *psec
;
7976 relocation
= (sec
->output_section
->vma
7977 + sec
->output_offset
+ sym
->st_value
);
7978 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
7980 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
7982 _bfd_merged_section_offset (abfd
, psec
,
7983 elf_section_data (sec
)->sec_info
,
7984 sym
->st_value
+ rel
->r_addend
);
7987 _bfd_merged_section_offset (abfd
, psec
,
7988 elf_section_data (sec
)->sec_info
,
7989 sym
->st_value
) + rel
->r_addend
;
7993 /* If we have changed the section, and our original section is
7994 marked with SEC_EXCLUDE, it means that the original
7995 SEC_MERGE section has been completely subsumed in some
7996 other SEC_MERGE section. In this case, we need to leave
7997 some info around for --emit-relocs. */
7998 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
7999 sec
->kept_section
= *psec
;
8002 rel
->r_addend
-= relocation
;
8003 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8009 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8010 Elf_Internal_Sym
*isymbuf
,
8011 Elf_Internal_Shdr
*symtab_hdr
)
8013 bfd_signed_vma foff
;
8014 bfd_vma symval
, addend
;
8015 Elf_Internal_Rela irel_fn
;
8016 Elf_Internal_Sym
*isym
;
8019 /* Get the value of the symbol referred to by the reloc. */
8020 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8022 /* A local symbol. */
8023 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8025 if (isym
->st_shndx
== SHN_UNDEF
)
8026 sym_sec
= bfd_und_section_ptr
;
8027 else if (isym
->st_shndx
== SHN_ABS
)
8028 sym_sec
= bfd_abs_section_ptr
;
8029 else if (isym
->st_shndx
== SHN_COMMON
)
8030 sym_sec
= bfd_com_section_ptr
;
8032 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8033 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8034 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8035 addend
= irel_fn
.r_addend
;
8040 struct elf_link_hash_entry
*h
;
8042 /* An external symbol. */
8043 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8044 h
= elf_sym_hashes (abfd
)[indx
];
8045 BFD_ASSERT (h
!= NULL
);
8047 while (h
->root
.type
== bfd_link_hash_indirect
8048 || h
->root
.type
== bfd_link_hash_warning
)
8049 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8051 if (h
->root
.type
!= bfd_link_hash_defined
8052 && h
->root
.type
!= bfd_link_hash_defweak
)
8053 /* This appears to be a reference to an undefined
8054 symbol. Just ignore it--it will be caught by the
8055 regular reloc processing. */
8058 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8060 sym_sec
= h
->root
.u
.def
.section
;
8061 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8062 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8063 symval
= symval
+ sym_sec
->output_section
->vma
8064 + sym_sec
->output_offset
;
8067 symval
= (h
->root
.u
.def
.value
8068 + h
->root
.u
.def
.section
->output_section
->vma
8069 + h
->root
.u
.def
.section
->output_offset
);
8070 addend
= irel
->r_addend
;
8073 foff
= symval
+ addend
;
8079 calculate_got_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
8080 Elf_Internal_Rela
*irel
,
8081 Elf_Internal_Shdr
*symtab_hdr
)
8084 bfd_vma
*local_got_offsets
;
8085 /* Get the value of the symbol referred to by the reloc. */
8086 struct elf_link_hash_entry
*h
;
8087 struct elf_nds32_link_hash_table
*htab
= nds32_elf_hash_table (link_info
);
8089 /* An external symbol. */
8090 symndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8091 h
= elf_sym_hashes (abfd
)[symndx
];
8092 while (h
->root
.type
== bfd_link_hash_indirect
8093 || h
->root
.type
== bfd_link_hash_warning
)
8094 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8098 BFD_ASSERT (h
!= NULL
);
8099 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8104 local_got_offsets
= elf_local_got_offsets (abfd
);
8105 BFD_ASSERT (local_got_offsets
!= NULL
);
8106 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8107 + local_got_offsets
[ELF32_R_SYM (irel
->r_info
)];
8110 /* The _GLOBAL_OFFSET_TABLE_ may be undefweak(or should be?). */
8111 /* The check of h->root.type is passed. */
8115 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8116 asection
*sec
, Elf_Internal_Rela
*rel
)
8119 unsigned short insn16
;
8121 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8123 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8124 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8125 if (insn16
== NDS32_NOP16
)
8130 /* It checks whether the instruction could be converted to
8131 16-bit form and returns the converted one.
8133 `internal_relocs' is supposed to be sorted. */
8136 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8137 Elf_Internal_Rela
*reloc
,
8138 Elf_Internal_Rela
*internal_relocs
,
8139 Elf_Internal_Rela
*irelend
,
8142 #define NORMAL_32_TO_16 (1 << 0)
8143 #define SPECIAL_32_TO_16 (1 << 1)
8144 bfd_byte
*contents
= NULL
;
8148 Elf_Internal_Rela
*pc_rel
;
8149 int pic_ext_target
= 0;
8150 Elf_Internal_Shdr
*symtab_hdr
;
8151 Elf_Internal_Sym
*isymbuf
= NULL
;
8155 if (reloc
->r_offset
+ 4 > sec
->size
)
8158 offset
= reloc
->r_offset
;
8160 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8162 insn
= bfd_getb32 (contents
+ offset
);
8164 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8165 convert_type
= NORMAL_32_TO_16
;
8166 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8167 convert_type
= SPECIAL_32_TO_16
;
8171 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8172 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8175 /* Find the first relocation of the same relocation-type,
8176 so we iteratie them forward. */
8178 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8181 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8183 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8184 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8185 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8186 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8188 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8190 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8195 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8197 /* movi => movi55 */
8198 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8200 /* mem_addr is unsigned, but the value should
8201 be between [-16, 15]. */
8202 if ((mem_addr
+ 0x10) >> 5)
8206 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8207 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8209 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8210 because it can be relaxed to addi for TLS_LE_ADD. */
8213 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8214 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8215 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8216 && convert_type
== SPECIAL_32_TO_16
)
8219 We've selected a best fp-base for this access, so we can
8220 always resolve it anyway. Do nothing. */
8223 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8224 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8225 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8226 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8227 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8228 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8230 /* Prevent unresolved addi instruction translate
8231 to addi45 or addi333. */
8234 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8236 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8238 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8248 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8249 Elf_Internal_Rela
*reloc
,
8250 Elf_Internal_Rela
*internal_relocs
,
8251 Elf_Internal_Rela
*irelend
,
8252 unsigned short insn16
)
8254 Elf_Internal_Rela
*pc_rel
;
8257 offset
= reloc
->r_offset
;
8258 bfd_putb16 (insn16
, contents
+ offset
);
8259 /* Find the first relocation of the same relocation-type,
8260 so we iteratie them forward. */
8262 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8265 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8267 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8268 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8269 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8272 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8274 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8276 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8277 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8279 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8280 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8281 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8283 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8284 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8286 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8290 /* Find a relocation of type specified by `reloc_type'
8291 of the same r_offset with reloc.
8292 If not found, return irelend.
8294 Assuming relocations are sorted by r_offset,
8295 we find the relocation from `reloc' backward untill relocs,
8296 or find it from `reloc' forward untill irelend. */
8298 static Elf_Internal_Rela
*
8299 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8300 Elf_Internal_Rela
*relocs
,
8301 Elf_Internal_Rela
*irelend
,
8302 enum elf_nds32_reloc_type reloc_type
)
8304 Elf_Internal_Rela
*rel_t
;
8306 /* Find backward. */
8308 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8310 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8313 /* We didn't find it backward. Try find it forward. */
8315 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8317 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8323 /* Find a relocation of specified type and offset.
8324 `reloc' is just a refence point to find a relocation at specified offset.
8325 If not found, return irelend.
8327 Assuming relocations are sorted by r_offset,
8328 we find the relocation from `reloc' backward untill relocs,
8329 or find it from `reloc' forward untill irelend. */
8331 static Elf_Internal_Rela
*
8332 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8333 Elf_Internal_Rela
*relocs
,
8334 Elf_Internal_Rela
*irelend
,
8335 enum elf_nds32_reloc_type reloc_type
,
8338 Elf_Internal_Rela
*rel_t
= NULL
;
8340 /* First, we try to find a relocation of offset `offset_p',
8341 and then we use find_relocs_at_address to find specific type. */
8343 if (reloc
->r_offset
> offset_p
)
8345 /* Find backward. */
8347 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8350 else if (reloc
->r_offset
< offset_p
)
8354 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8361 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8364 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8368 nds32_elf_check_dup_relocs (Elf_Internal_Rela
*reloc
,
8369 Elf_Internal_Rela
*internal_relocs
,
8370 Elf_Internal_Rela
*irelend
,
8371 unsigned char reloc_type
)
8373 Elf_Internal_Rela
*rel_t
;
8376 rel_t
>= internal_relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8378 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8380 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8381 && rel_t
->r_addend
== reloc
->r_addend
)
8386 for (rel_t
= reloc
; rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8388 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8390 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8391 && rel_t
->r_addend
== reloc
->r_addend
)
8399 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8400 struct nds32_elf_blank
8402 /* Where the blank begins. */
8404 /* The size of the blank. */
8406 /* The accumulative size before this blank. */
8408 nds32_elf_blank_t
*next
;
8409 nds32_elf_blank_t
*prev
;
8412 static nds32_elf_blank_t
*blank_free_list
= NULL
;
8414 static nds32_elf_blank_t
*
8415 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
8417 nds32_elf_blank_t
*blank_t
;
8419 if (blank_free_list
)
8421 blank_t
= blank_free_list
;
8422 blank_free_list
= blank_free_list
->next
;
8425 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
8427 if (blank_t
== NULL
)
8430 blank_t
->offset
= offset_p
;
8431 blank_t
->size
= size_p
;
8432 blank_t
->total_size
= 0;
8433 blank_t
->next
= NULL
;
8434 blank_t
->prev
= NULL
;
8440 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
8442 if (blank_free_list
)
8444 blank_free_list
->prev
= blank_p
;
8445 blank_p
->next
= blank_free_list
;
8448 blank_p
->next
= NULL
;
8450 blank_p
->prev
= NULL
;
8451 blank_free_list
= blank_p
;
8455 clean_nds32_elf_blank (void)
8457 nds32_elf_blank_t
*blank_t
;
8459 while (blank_free_list
)
8461 blank_t
= blank_free_list
;
8462 blank_free_list
= blank_free_list
->next
;
8467 static nds32_elf_blank_t
*
8468 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
8470 nds32_elf_blank_t
*blank_t
;
8476 while (blank_t
&& addr
< blank_t
->offset
)
8477 blank_t
= blank_t
->prev
;
8478 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
8479 blank_t
= blank_t
->next
;
8485 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8488 nds32_elf_blank_t
*blank_t
;
8490 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8497 if (addr
< blank_t
->offset
+ blank_t
->size
)
8498 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
8500 return blank_t
->total_size
+ blank_t
->size
;
8504 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
8506 nds32_elf_blank_t
*blank_t
, *blank_t2
;
8510 *blank_p
= create_nds32_elf_blank (addr
, len
);
8511 return *blank_p
? TRUE
: FALSE
;
8514 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8516 if (blank_t
== NULL
)
8518 blank_t
= create_nds32_elf_blank (addr
, len
);
8521 while ((*blank_p
)->prev
!= NULL
)
8522 *blank_p
= (*blank_p
)->prev
;
8523 blank_t
->next
= *blank_p
;
8524 (*blank_p
)->prev
= blank_t
;
8525 (*blank_p
) = blank_t
;
8529 if (addr
< blank_t
->offset
+ blank_t
->size
)
8531 if (addr
> blank_t
->offset
+ blank_t
->size
)
8532 blank_t
->size
= addr
- blank_t
->offset
;
8536 blank_t2
= create_nds32_elf_blank (addr
, len
);
8541 blank_t
->next
->prev
= blank_t2
;
8542 blank_t2
->next
= blank_t
->next
;
8544 blank_t2
->prev
= blank_t
;
8545 blank_t
->next
= blank_t2
;
8546 *blank_p
= blank_t2
;
8553 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8556 nds32_elf_blank_t
*blank_t
;
8558 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
8565 blank_t
->total_size
= 0;
8566 blank_t
= blank_t
->next
;
8571 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
8572 blank_t
= blank_t
->next
;
8579 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
8581 nds32_elf_blank_t
*blank_t
;
8582 bfd_vma total_size
= 0;
8588 while (blank_t
->prev
)
8589 blank_t
= blank_t
->prev
;
8592 blank_t
->total_size
= total_size
;
8593 total_size
+= blank_t
->size
;
8594 blank_t
= blank_t
->next
;
8599 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
8600 nds32_elf_blank_t
*blank_p
)
8602 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
8603 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
8604 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
8605 unsigned int sec_shndx
; /* The section the be relaxed. */
8606 bfd_byte
*contents
; /* Contents data of iterating section. */
8607 Elf_Internal_Rela
*internal_relocs
;
8608 Elf_Internal_Rela
*irel
;
8609 Elf_Internal_Rela
*irelend
;
8610 struct elf_link_hash_entry
**sym_hashes
;
8611 struct elf_link_hash_entry
**end_hashes
;
8612 unsigned int symcount
;
8614 nds32_elf_blank_t
*blank_t
;
8615 nds32_elf_blank_t
*blank_t2
;
8616 nds32_elf_blank_t
*blank_head
;
8618 blank_head
= blank_t
= blank_p
;
8619 while (blank_head
->prev
!= NULL
)
8620 blank_head
= blank_head
->prev
;
8621 while (blank_t
->next
!= NULL
)
8622 blank_t
= blank_t
->next
;
8624 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
8626 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
8627 blank_t
->next
->prev
= blank_t
;
8629 if (blank_head
->offset
> 0)
8631 blank_head
->prev
= create_nds32_elf_blank (0, 0);
8632 blank_head
->prev
->next
= blank_head
;
8633 blank_head
= blank_head
->prev
;
8636 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
8638 /* The deletion must stop at the next ALIGN reloc for an alignment
8639 power larger than the number of bytes we are deleting. */
8641 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8642 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
8647 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8648 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
8649 symtab_hdr
->contents
= (bfd_byte
*) isym
;
8652 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
8655 blank_t
= blank_head
;
8656 calc_nds32_blank_total (blank_head
);
8658 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
8660 /* Adjust all the relocs. */
8662 /* Relocations MUST be kept in memory, because relaxation adjust them. */
8663 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
8664 TRUE
/* keep_memory */);
8665 irelend
= internal_relocs
+ sect
->reloc_count
;
8667 blank_t
= blank_head
;
8668 blank_t2
= blank_head
;
8670 if (!(sect
->flags
& SEC_RELOC
))
8673 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
8675 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
8679 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
8680 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
8681 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8683 unsigned long val
= 0;
8685 long before
, between
;
8688 switch (ELF32_R_TYPE (irel
->r_info
))
8691 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
8693 case R_NDS32_DIFF16
:
8694 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
8696 case R_NDS32_DIFF32
:
8697 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
8698 /* Get the signed bit and mask for the high part. The
8699 gcc will alarm when right shift 32-bit since the
8700 type size of long may be 32-bit. */
8701 mask
= 0 - (val
>> 31);
8703 offset
= (val
| (mask
- 0xffffffff));
8712 0 |encoded in location|
8713 |------------|-------------------|---------
8715 -- before ---| *****************
8716 --------------------- between ---|
8718 We only care how much data are relax between DIFF,
8721 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8722 between
= get_nds32_elf_blank_total (&blank_t
,
8723 irel
->r_addend
+ offset
, 0);
8724 if (between
== before
)
8725 goto done_adjust_diff
;
8727 switch (ELF32_R_TYPE (irel
->r_info
))
8730 bfd_put_8 (abfd
, offset
- (between
- before
),
8731 contents
+ irel
->r_offset
);
8733 case R_NDS32_DIFF16
:
8734 bfd_put_16 (abfd
, offset
- (between
- before
),
8735 contents
+ irel
->r_offset
);
8737 case R_NDS32_DIFF32
:
8738 bfd_put_32 (abfd
, offset
- (between
- before
),
8739 contents
+ irel
->r_offset
);
8743 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
8744 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8747 unsigned int len
= 0;
8748 unsigned long before
, between
;
8751 val
= read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
8754 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8755 between
= get_nds32_elf_blank_total (&blank_t
,
8756 irel
->r_addend
+ val
, 0);
8757 if (between
== before
)
8758 goto done_adjust_diff
;
8760 p
= contents
+ irel
->r_offset
;
8762 memset (p
, 0x80, len
);
8764 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
8772 raddr
= irel
->r_offset
;
8773 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
8776 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
8778 if (blank_t2
&& blank_t2
->next
8779 && (blank_t2
->offset
> raddr
8780 || blank_t2
->next
->offset
<= raddr
))
8781 (*_bfd_error_handler
)
8782 (_("%B: %s\n"), abfd
,
8783 "Error: search_nds32_elf_blank reports wrong node");
8785 /* Mark reloc in deleted portion as NONE.
8786 For some relocs like R_NDS32_LABEL that doesn't modify the
8787 content in the section. R_NDS32_LABEL doesn't belong to the
8788 instruction in the section, so we should preserve it. */
8789 if (raddr
>= blank_t2
->offset
8790 && raddr
< blank_t2
->offset
+ blank_t2
->size
8791 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
8792 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
8793 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
8794 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
8795 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
8796 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
8798 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
8804 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
8805 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
8806 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
8809 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
8810 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
8811 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
8813 if (irel
->r_addend
<= sec
->size
)
8815 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
8820 /* Adjust the local symbols defined in this section. */
8821 blank_t
= blank_head
;
8822 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
8824 if (isym
->st_shndx
== sec_shndx
)
8826 if (isym
->st_value
<= sec
->size
)
8829 bfd_vma orig_addr
= isym
->st_value
;
8831 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
8832 isym
->st_value
-= ahead
;
8834 /* Adjust function size. */
8835 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
8836 && isym
->st_size
> 0)
8838 get_nds32_elf_blank_total
8839 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
8844 /* Now adjust the global symbols defined in this section. */
8845 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
8846 - symtab_hdr
->sh_info
);
8847 sym_hashes
= elf_sym_hashes (abfd
);
8848 end_hashes
= sym_hashes
+ symcount
;
8849 blank_t
= blank_head
;
8850 for (; sym_hashes
< end_hashes
; sym_hashes
++)
8852 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
8854 if ((sym_hash
->root
.type
== bfd_link_hash_defined
8855 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
8856 && sym_hash
->root
.u
.def
.section
== sec
)
8858 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
8861 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
8863 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
8864 sym_hash
->root
.u
.def
.value
-= ahead
;
8866 /* Adjust function size. */
8867 if (sym_hash
->type
== STT_FUNC
)
8869 get_nds32_elf_blank_total
8870 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
8876 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8877 blank_t
= blank_head
;
8878 while (blank_t
->next
)
8880 /* Actually delete the bytes. */
8882 /* If current blank is the last blank overlap with current section,
8883 go to finish process. */
8884 if (sec
->size
<= (blank_t
->next
->offset
))
8887 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8888 contents
+ blank_t
->offset
+ blank_t
->size
,
8889 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
8891 blank_t
= blank_t
->next
;
8894 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
8896 /* There are remaining code between blank and section boundary.
8897 Move the remaining code to appropriate location. */
8898 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8899 contents
+ blank_t
->offset
+ blank_t
->size
,
8900 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
8901 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
8904 /* This blank is not entirely included in the section,
8905 reduce the section size by only part of the blank size. */
8906 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
8910 blank_t
= blank_head
;
8911 blank_head
= blank_head
->next
;
8912 remove_nds32_elf_blank (blank_t
);
8918 /* Get the contents of a section. */
8921 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
8922 bfd_byte
**contents_p
, bfd_boolean cache
)
8924 /* Get the section contents. */
8925 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
8926 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
8929 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
8932 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
8938 /* Get the contents of the internal symbol of abfd. */
8941 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
8942 Elf_Internal_Sym
**isymbuf_p
)
8944 Elf_Internal_Shdr
*symtab_hdr
;
8945 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8947 /* Read this BFD's local symbols if we haven't done so already. */
8948 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
8950 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
8951 if (*isymbuf_p
== NULL
)
8953 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8954 symtab_hdr
->sh_info
, 0,
8956 if (*isymbuf_p
== NULL
)
8960 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
8965 /* Range of small data. */
8966 static bfd_vma sdata_range
[2][2];
8967 static bfd_vma
const sdata_init_range
[2] =
8968 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
8971 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
8972 bfd_byte
*contents
, bfd_vma addr
)
8974 unsigned long insn
= bfd_getb32 (contents
+ addr
);
8976 if (insn
& 0x80000000)
8982 /* Set the gp relax range. We have to measure the safe range
8983 to do gp relaxation. */
8986 relax_range_measurement (bfd
*abfd
)
8988 asection
*sec_f
, *sec_b
;
8989 /* For upper bound. */
8990 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
8992 static int decide_relax_range
= 0;
8994 int range_number
= sizeof (sdata_init_range
) / sizeof (sdata_init_range
[0]);
8996 if (decide_relax_range
)
8998 decide_relax_range
= 1;
9000 if (sda_rela_sec
== NULL
)
9002 /* Since there is no data sections, we assume the range is page size. */
9003 for (i
= 0; i
< range_number
; i
++)
9005 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9006 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9011 /* Get the biggest alignment power after the gp located section. */
9012 sec_f
= sda_rela_sec
->output_section
;
9013 sec_b
= sec_f
->next
;
9015 while (sec_b
!= NULL
)
9017 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9018 align
= (1 << sec_b
->alignment_power
);
9019 sec_b
= sec_b
->next
;
9022 /* I guess we can not determine the section before
9023 gp located section, so we assume the align is max page size. */
9024 for (i
= 0; i
< range_number
; i
++)
9026 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9027 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9028 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9029 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9033 /* These are macros used to check flags encoded in r_addend.
9034 They are only used by nds32_elf_relax_section (). */
9035 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9036 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9037 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9038 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9040 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9043 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9044 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9045 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9046 Elf_Internal_Shdr
*symtab_hdr
)
9048 /* There are 3 variations for LONGCALL1
9049 case 4-4-2; 16-bit on, optimize off or optimize for space
9050 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9051 ori ta, ta, lo12(symbol) ; LO12S0
9054 case 4-4-4; 16-bit off, optimize don't care
9055 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9056 ori ta, ta, lo12(symbol) ; LO12S0
9059 case 4-4-4; 16-bit on, optimize for speed
9060 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9061 ori ta, ta, lo12(symbol) ; LO12S0
9063 Check code for -mlong-calls output. */
9065 /* Get the reloc for the address from which the register is
9066 being loaded. This reloc will tell us which function is
9067 actually being called. */
9070 int seq_len
; /* Original length of instruction sequence. */
9072 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9073 int pic_ext_target
= 0;
9074 bfd_signed_vma foff
;
9077 irelend
= internal_relocs
+ sec
->reloc_count
;
9078 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9079 laddr
= irel
->r_offset
;
9080 *insn_len
= seq_len
;
9082 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9083 R_NDS32_HI20_RELA
, laddr
);
9084 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9085 R_NDS32_LO12S0_ORI_RELA
,
9088 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9090 (*_bfd_error_handler
)
9091 ("%B: warning: R_NDS32_LONGCALL1 points to unrecognized"
9092 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9096 /* Get the value of the symbol referred to by the reloc. */
9097 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9100 /* This condition only happened when symbol is undefined. */
9101 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9102 || foff
>= CONSERVATIVE_24BIT_S1
)
9105 /* Relax to: jal symbol; 25_PCREL */
9106 /* For simplicity of coding, we are going to modify the section
9107 contents, the section relocs, and the BFD symbol table. We
9108 must tell the rest of the code not to free up this
9109 information. It would be possible to instead create a table
9110 of changes which have to be made, as is done in coff-mips.c;
9111 that would be more work, but would require less memory when
9112 the linker is run. */
9114 /* Replace the long call with a jal. */
9115 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9116 R_NDS32_25_PCREL_RELA
);
9117 irel
->r_addend
= hi_irelfn
->r_addend
;
9119 /* We don't resolve this here but resolve it in relocate_section. */
9121 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9124 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9126 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9131 insn16
= NDS32_NOP16
;
9132 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9134 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9135 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9141 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9142 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9145 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9146 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9147 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9148 Elf_Internal_Shdr
*symtab_hdr
)
9150 /* bltz rt, .L1 ; LONGCALL2
9151 jal symbol ; 25_PCREL
9154 /* Get the reloc for the address from which the register is
9155 being loaded. This reloc will tell us which function is
9156 actually being called. */
9160 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9161 int pic_ext_target
= 0;
9162 bfd_signed_vma foff
;
9164 irelend
= internal_relocs
+ sec
->reloc_count
;
9165 laddr
= irel
->r_offset
;
9167 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9168 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9170 if (i1_irelfn
== irelend
)
9172 (*_bfd_error_handler
)
9173 ("%B: warning: R_NDS32_LONGCALL2 points to unrecognized"
9174 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9178 insn
= bfd_getb32 (contents
+ laddr
);
9180 /* Get the value of the symbol referred to by the reloc. */
9181 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
,
9184 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9185 || foff
>= CONSERVATIVE_16BIT_S1
)
9188 /* Relax to bgezal rt, label ; 17_PCREL
9189 or bltzal rt, label ; 17_PCREL */
9191 /* Convert to complimentary conditional call. */
9192 insn
= CONVERT_CONDITION_CALL (insn
);
9194 /* For simplicity of coding, we are going to modify the section
9195 contents, the section relocs, and the BFD symbol table. We
9196 must tell the rest of the code not to free up this
9197 information. It would be possible to instead create a table
9198 of changes which have to be made, as is done in coff-mips.c;
9199 that would be more work, but would require less memory when
9200 the linker is run. */
9202 /* Clean unnessary relocations. */
9204 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9206 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9207 R_NDS32_17_PCREL_RELA
, laddr
);
9208 if (cond_irelfn
!= irelend
)
9209 cond_irelfn
->r_info
=
9210 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9212 /* Replace the long call with a bgezal. */
9213 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9214 R_NDS32_17_PCREL_RELA
);
9215 irel
->r_addend
= i1_irelfn
->r_addend
;
9217 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9223 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9226 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9227 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9228 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9229 Elf_Internal_Shdr
*symtab_hdr
)
9231 /* There are 3 variations for LONGCALL3
9232 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9233 bltz rt, $1 ; LONGCALL3
9234 sethi ta, hi20(symbol) ; HI20
9235 ori ta, ta, lo12(symbol) ; LO12S0
9239 case 4-4-4-4; 16-bit off, optimize don't care
9240 bltz rt, $1 ; LONGCALL3
9241 sethi ta, hi20(symbol) ; HI20
9242 ori ta, ta, lo12(symbol) ; LO12S0
9246 case 4-4-4-4; 16-bit on, optimize for speed
9247 bltz rt, $1 ; LONGCALL3
9248 sethi ta, hi20(symbol) ; HI20
9249 ori ta, ta, lo12(symbol) ; LO12S0
9253 /* Get the reloc for the address from which the register is
9254 being loaded. This reloc will tell us which function is
9255 actually being called. */
9258 int seq_len
; /* Original length of instruction sequence. */
9260 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9261 int pic_ext_target
= 0;
9262 bfd_signed_vma foff
;
9265 irelend
= internal_relocs
+ sec
->reloc_count
;
9266 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9267 laddr
= irel
->r_offset
;
9268 *insn_len
= seq_len
;
9271 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9272 R_NDS32_HI20_RELA
, laddr
+ 4);
9274 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9275 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9277 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9279 (*_bfd_error_handler
)
9280 ("%B: warning: R_NDS32_LONGCALL3 points to unrecognized"
9281 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9285 /* Get the value of the symbol referred to by the reloc. */
9286 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9289 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9290 || foff
>= CONSERVATIVE_24BIT_S1
)
9293 insn
= bfd_getb32 (contents
+ laddr
);
9294 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9296 /* Relax to bgezal rt, label ; 17_PCREL
9297 or bltzal rt, label ; 17_PCREL */
9299 /* Convert to complimentary conditional call. */
9300 insn
= CONVERT_CONDITION_CALL (insn
);
9301 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9305 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9307 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9309 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9312 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9313 R_NDS32_17_PCREL_RELA
, laddr
);
9314 if (cond_irelfn
!= irelend
)
9316 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9317 R_NDS32_17_PCREL_RELA
);
9318 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9323 insn16
= NDS32_NOP16
;
9324 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9325 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9327 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9331 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9333 /* Relax to the following instruction sequence
9334 bltz rt, $1 ; LONGCALL2
9335 jal symbol ; 25_PCREL
9339 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9341 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9342 R_NDS32_25_PCREL_RELA
);
9344 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9347 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9351 insn16
= NDS32_NOP16
;
9352 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9354 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9355 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9362 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9365 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9366 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9367 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9368 Elf_Internal_Shdr
*symtab_hdr
)
9370 /* There are 3 variations for LONGJUMP1
9371 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9372 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9373 ori ta, ta, lo12(symbol) ; LO12S0
9376 case 4-4-4; 16-bit off, optimize don't care
9377 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9378 ori ta, ta, lo12(symbol) ; LO12S0
9381 case 4-4-4; 16-bit on, optimize for speed
9382 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9383 ori ta, ta, lo12(symbol) ; LO12S0
9386 /* Get the reloc for the address from which the register is
9387 being loaded. This reloc will tell us which function is
9388 actually being called. */
9391 int seq_len
; /* Original length of instruction sequence. */
9392 int insn16_on
; /* 16-bit on/off. */
9394 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9395 int pic_ext_target
= 0;
9396 bfd_signed_vma foff
;
9398 unsigned long reloc
;
9400 irelend
= internal_relocs
+ sec
->reloc_count
;
9401 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9402 laddr
= irel
->r_offset
;
9403 *insn_len
= seq_len
;
9404 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
9407 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9408 R_NDS32_HI20_RELA
, laddr
);
9410 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9411 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
9412 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9414 (*_bfd_error_handler
)
9415 ("%B: warning: R_NDS32_LONGJUMP1 points to unrecognized"
9416 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9420 /* Get the value of the symbol referred to by the reloc. */
9421 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9424 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
9425 || foff
< -CONSERVATIVE_24BIT_S1
)
9428 if (insn16_on
&& foff
>= -ACCURATE_8BIT_S1
9429 && foff
< ACCURATE_8BIT_S1
&& (seq_len
& 0x2))
9432 /* 16-bit on, but not optimized for speed. */
9433 reloc
= R_NDS32_9_PCREL_RELA
;
9435 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
9438 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
9443 reloc
= R_NDS32_25_PCREL_RELA
;
9445 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9448 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
9453 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9455 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9457 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
9459 insn16
= NDS32_NOP16
;
9460 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9462 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9464 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9470 /* Revert condition branch. This function does not check if the input
9471 instruction is condition branch or not. */
9474 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
9475 uint16_t *re_insn16
, uint32_t *re_insn
)
9477 uint32_t comp_insn
= 0;
9478 uint16_t comp_insn16
= 0;
9482 if (N32_OP6 (insn
) == N32_OP6_BR1
)
9485 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
9486 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
9488 /* Insn can be contracted to 16-bit implied r5. */
9490 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
9491 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9494 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
9496 /* bnec $ta, imm11, label. */
9497 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
9501 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
9502 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
9503 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
9505 if (N32_IS_RT3 (insn
))
9507 /* Insn can be contracted to 16-bit. */
9509 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
9510 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9512 else if (N32_RT5 (insn
) == REG_R15
)
9514 /* Insn can be contracted to 16-bit. */
9516 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
9523 switch ((insn16
& 0xf000) >> 12)
9526 /* beqz38 or bnez38 */
9527 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9528 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
9529 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
9533 /* beqs38 or bnes38 */
9534 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9535 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
9536 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
9541 /* beqzS8 or bnezS8 */
9542 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
9543 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
9544 comp_insn
|= REG_R15
<< 20;
9551 if (comp_insn
&& re_insn
)
9552 *re_insn
= comp_insn
;
9553 if (comp_insn16
&& re_insn16
)
9554 *re_insn16
= comp_insn16
;
9557 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
9560 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9561 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9562 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9563 Elf_Internal_Shdr
*symtab_hdr
)
9565 /* There are 3 variations for LONGJUMP2
9566 case 2-4; 1st insn convertible, 16-bit on,
9567 optimize off or optimize for space
9568 bnes38 rt, ra, $1 ; LONGJUMP2
9572 case 4-4; 1st insn not convertible
9573 bne rt, ra, $1 ; LONGJUMP2
9577 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9578 bne rt, ra, $1 ; LONGJUMP2
9582 /* Get the reloc for the address from which the register is
9583 being loaded. This reloc will tell us which function is
9584 actually being called. */
9587 int seq_len
; /* Original length of instruction sequence. */
9588 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
9589 int pic_ext_target
= 0, first_size
;
9591 bfd_signed_vma foff
;
9592 uint32_t insn
, re_insn
= 0;
9593 uint16_t insn16
, re_insn16
= 0;
9594 unsigned long reloc
, cond_reloc
;
9596 enum elf_nds32_reloc_type checked_types
[] =
9597 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9599 irelend
= internal_relocs
+ sec
->reloc_count
;
9600 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9601 laddr
= irel
->r_offset
;
9602 *insn_len
= seq_len
;
9603 first_size
= (seq_len
== 6) ? 2 : 4;
9606 find_relocs_at_address_addr (irel
, internal_relocs
,
9607 irelend
, R_NDS32_25_PCREL_RELA
,
9608 laddr
+ first_size
);
9610 for (i
= 0; i
< sizeof (checked_types
) / sizeof(checked_types
[0]); i
++)
9613 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9614 checked_types
[i
], laddr
);
9615 if (cond_irelfn
!= irelend
)
9619 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
9621 (*_bfd_error_handler
)
9622 ("%B: warning: R_NDS32_LONGJUMP2 points to unrecognized"
9623 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9627 /* Get the value of the symbol referred to by the reloc. */
9629 calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
,
9631 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9632 || foff
>= CONSERVATIVE_16BIT_S1
)
9635 /* Get the all corresponding instructions. */
9636 if (first_size
== 4)
9638 insn
= bfd_getb32 (contents
+ laddr
);
9639 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9643 insn16
= bfd_getb16 (contents
+ laddr
);
9644 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9647 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
9648 && foff
< ACCURATE_8BIT_S1
- first_size
)
9650 if (first_size
== 4)
9652 /* Don't convert it to 16-bit now, keep this as relaxable for
9653 ``label reloc; INSN16''. */
9655 /* Save comp_insn32 to buffer. */
9656 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9658 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9659 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9660 cond_reloc
= R_NDS32_INSN16
;
9664 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9666 reloc
= R_NDS32_9_PCREL_RELA
;
9667 cond_reloc
= R_NDS32_NONE
;
9670 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9671 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9672 && foff
< ACCURATE_14BIT_S1
- first_size
))
9674 /* beqs label ; 15_PCREL */
9675 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9677 reloc
= R_NDS32_15_PCREL_RELA
;
9678 cond_reloc
= R_NDS32_NONE
;
9680 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9681 && foff
>= -CONSERVATIVE_16BIT_S1
9682 && foff
< CONSERVATIVE_16BIT_S1
)
9684 /* beqz label ; 17_PCREL */
9685 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9687 reloc
= R_NDS32_17_PCREL_RELA
;
9688 cond_reloc
= R_NDS32_NONE
;
9693 /* Set all relocations. */
9694 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
9695 irel
->r_addend
= i2_irelfn
->r_addend
;
9697 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9699 cond_irelfn
->r_addend
= 0;
9701 if ((seq_len
^ *insn_len
) & 0x2)
9703 insn16
= NDS32_NOP16
;
9704 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
9705 i2_irelfn
->r_offset
= 4;
9706 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9708 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9712 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9717 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
9720 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9721 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9722 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9723 Elf_Internal_Shdr
*symtab_hdr
)
9725 /* There are 5 variations for LONGJUMP3
9726 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
9727 optimize off or optimize for space
9728 bnes38 rt, ra, $1 ; LONGJUMP3
9729 sethi ta, hi20(symbol) ; HI20
9730 ori ta, ta, lo12(symbol) ; LO12S0
9734 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
9735 bnes38 rt, ra, $1 ; LONGJUMP3
9736 sethi ta, hi20(symbol) ; HI20
9737 ori ta, ta, lo12(symbol) ; LO12S0
9741 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
9742 optimize off or optimize for space
9743 bne rt, ra, $1 ; LONGJUMP3
9744 sethi ta, hi20(symbol) ; HI20
9745 ori ta, ta, lo12(symbol) ; LO12S0
9749 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
9750 16-bit off if no INSN16
9751 bne rt, ra, $1 ; LONGJUMP3
9752 sethi ta, hi20(symbol) ; HI20
9753 ori ta, ta, lo12(symbol) ; LO12S0
9757 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
9758 16-bit off if no INSN16
9759 bne rt, ra, $1 ; LONGJUMP3
9760 sethi ta, hi20(symbol) ; HI20
9761 ori ta, ta, lo12(symbol) ; LO12S0
9765 /* Get the reloc for the address from which the register is
9766 being loaded. This reloc will tell us which function is
9767 actually being called. */
9768 enum elf_nds32_reloc_type checked_types
[] =
9769 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9771 int reloc_off
= 0, cond_removed
= 0, convertible
;
9773 int seq_len
; /* Original length of instruction sequence. */
9774 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9775 int pic_ext_target
= 0, first_size
;
9777 bfd_signed_vma foff
;
9778 uint32_t insn
, re_insn
= 0;
9779 uint16_t insn16
, re_insn16
= 0;
9780 unsigned long reloc
, cond_reloc
;
9782 irelend
= internal_relocs
+ sec
->reloc_count
;
9783 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9784 laddr
= irel
->r_offset
;
9785 *insn_len
= seq_len
;
9787 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
9794 /* Get all needed relocations. */
9796 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9797 R_NDS32_HI20_RELA
, laddr
+ first_size
);
9799 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9800 R_NDS32_LO12S0_ORI_RELA
,
9801 laddr
+ first_size
+ 4);
9803 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
9806 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9807 checked_types
[i
], laddr
);
9808 if (cond_irelfn
!= irelend
)
9812 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
|| cond_irelfn
== irelend
)
9814 (*_bfd_error_handler
)
9815 ("%B: warning: R_NDS32_LONGJUMP3 points to unrecognized"
9816 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9820 /* Get the value of the symbol referred to by the reloc. */
9821 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9824 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9825 || foff
>= CONSERVATIVE_24BIT_S1
)
9828 /* Get the all corresponding instructions. */
9829 if (first_size
== 4)
9831 insn
= bfd_getb32 (contents
+ laddr
);
9832 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9836 insn16
= bfd_getb16 (contents
+ laddr
);
9837 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9840 /* For simplicity of coding, we are going to modify the section
9841 contents, the section relocs, and the BFD symbol table. We
9842 must tell the rest of the code not to free up this
9843 information. It would be possible to instead create a table
9844 of changes which have to be made, as is done in coff-mips.c;
9845 that would be more work, but would require less memory when
9846 the linker is run. */
9848 if (re_insn16
&& foff
>= -ACCURATE_8BIT_S1
- first_size
9849 && foff
< ACCURATE_8BIT_S1
- first_size
)
9851 if (!(seq_len
& 0x2))
9853 /* Don't convert it to 16-bit now, keep this as relaxable
9854 for ``label reloc; INSN1a''6. */
9855 /* Save comp_insn32 to buffer. */
9856 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9858 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9859 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9860 cond_reloc
= R_NDS32_INSN16
;
9864 /* Not optimize for speed; convert sequence to 16-bit. */
9865 /* Save comp_insn16 to buffer. */
9866 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9868 reloc
= R_NDS32_9_PCREL_RELA
;
9869 cond_reloc
= R_NDS32_NONE
;
9873 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9874 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9875 && foff
< ACCURATE_14BIT_S1
- first_size
))
9877 /* beqs label ; 15_PCREL */
9878 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9880 reloc
= R_NDS32_15_PCREL_RELA
;
9881 cond_reloc
= R_NDS32_NONE
;
9884 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9885 && foff
>= -CONSERVATIVE_16BIT_S1
9886 && foff
< CONSERVATIVE_16BIT_S1
)
9888 /* beqz label ; 17_PCREL */
9889 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9891 reloc
= R_NDS32_17_PCREL_RELA
;
9892 cond_reloc
= R_NDS32_NONE
;
9895 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
9896 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
9898 /* Relax to one of the following 3 variations
9900 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
9902 bnes38 rt, $1 ; LONGJUMP2
9906 case 4-4; 1st insn not convertible, others don't care
9907 bne rt, ra, $1 ; LONGJUMP2
9911 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9912 bne rt, ra, $1 ; LONGJUMP2
9916 /* Offset for first instruction. */
9918 /* Use j label as second instruction. */
9919 *insn_len
= 4 + first_size
;
9921 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9922 reloc
= R_NDS32_LONGJUMP2
;
9923 cond_reloc
= R_NDS32_25_PLTREL
;
9928 if (cond_removed
== 1)
9930 /* Set all relocations. */
9931 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9932 irel
->r_addend
= hi_irelfn
->r_addend
;
9934 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9936 cond_irelfn
->r_addend
= 0;
9937 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9942 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
9943 irel
->r_addend
= irel
->r_addend
;
9944 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9948 if ((seq_len
^ *insn_len
) & 0x2)
9950 insn16
= NDS32_NOP16
;
9951 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9952 lo_irelfn
->r_offset
= *insn_len
;
9953 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9955 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9959 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9964 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
9967 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9968 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9969 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9970 Elf_Internal_Shdr
*symtab_hdr
)
9972 /* The pattern for LONGCALL4. Support for function cse.
9973 sethi ta, hi20(symbol) ; LONGCALL4/HI20
9974 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
9975 jral ta ; PTR_RES/EMPTY/INSN16 */
9979 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
9980 Elf_Internal_Rela
*irelend
;
9981 int pic_ext_target
= 0;
9982 bfd_signed_vma foff
;
9984 irelend
= internal_relocs
+ sec
->reloc_count
;
9985 laddr
= irel
->r_offset
;
9987 /* Get the reloc for the address from which the register is
9988 being loaded. This reloc will tell us which function is
9989 actually being called. */
9990 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9991 R_NDS32_HI20_RELA
, laddr
);
9993 if (hi_irel
== irelend
)
9995 (*_bfd_error_handler
)
9996 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
9997 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10001 /* Get the value of the symbol referred to by the reloc. */
10002 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10005 /* This condition only happened when symbol is undefined. */
10006 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10007 || foff
>= CONSERVATIVE_24BIT_S1
)
10010 /* Relax to: jal symbol; 25_PCREL */
10011 /* For simplicity of coding, we are going to modify the section
10012 contents, the section relocs, and the BFD symbol table. We
10013 must tell the rest of the code not to free up this
10014 information. It would be possible to instead create a table
10015 of changes which have to be made, as is done in coff-mips.c;
10016 that would be more work, but would require less memory when
10017 the linker is run. */
10019 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10020 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10021 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10022 R_NDS32_EMPTY
, irel
->r_addend
);
10024 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10026 (*_bfd_error_handler
)
10027 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
10028 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10031 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10032 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10033 if (insn
& 0x80000000)
10036 /* Replace the long call with a jal. */
10037 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10038 R_NDS32_25_PCREL_RELA
);
10039 ptr_irel
->r_addend
= 1;
10041 /* We don't resolve this here but resolve it in relocate_section. */
10043 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10046 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10048 /* If there is function cse, HI20 can not remove now. */
10049 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10050 R_NDS32_LONGCALL4
, laddr
);
10051 if (call_irel
== irelend
)
10055 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10058 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10059 R_NDS32_INSN16
, irel
->r_addend
);
10060 if (insn_irel
!= irelend
)
10061 insn_irel
->r_info
=
10062 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10067 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10070 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10071 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10072 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10073 Elf_Internal_Shdr
*symtab_hdr
)
10075 /* The pattern for LONGCALL5.
10076 bltz rt, .L1 ; LONGCALL5/17_PCREL
10077 jal symbol ; 25_PCREL
10082 Elf_Internal_Rela
*cond_irel
, *irelend
;
10083 int pic_ext_target
= 0;
10084 bfd_signed_vma foff
;
10086 irelend
= internal_relocs
+ sec
->reloc_count
;
10087 laddr
= irel
->r_offset
;
10088 insn
= bfd_getb32 (contents
+ laddr
);
10090 /* Get the reloc for the address from which the register is
10091 being loaded. This reloc will tell us which function is
10092 actually being called. */
10094 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10095 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10096 if (cond_irel
== irelend
)
10098 (*_bfd_error_handler
)
10099 ("%B: warning: R_NDS32_LONGCALL5 points to unrecognized"
10100 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10104 /* Get the value of the symbol referred to by the reloc. */
10105 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10108 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10109 || foff
>= CONSERVATIVE_16BIT_S1
)
10112 /* Relax to bgezal rt, label ; 17_PCREL
10113 or bltzal rt, label ; 17_PCREL */
10115 /* Convert to complimentary conditional call. */
10116 insn
= CONVERT_CONDITION_CALL (insn
);
10118 /* For simplicity of coding, we are going to modify the section
10119 contents, the section relocs, and the BFD symbol table. We
10120 must tell the rest of the code not to free up this
10121 information. It would be possible to instead create a table
10122 of changes which have to be made, as is done in coff-mips.c;
10123 that would be more work, but would require less memory when
10124 the linker is run. */
10126 /* Modify relocation and contents. */
10127 cond_irel
->r_info
=
10128 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10130 /* Replace the long call with a bgezal. */
10131 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10134 /* Clean unnessary relocations. */
10135 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10137 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10138 R_NDS32_17_PCREL_RELA
, laddr
);
10139 cond_irel
->r_info
=
10140 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10145 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10148 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10149 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10150 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10151 Elf_Internal_Shdr
*symtab_hdr
)
10153 /* The pattern for LONGCALL6.
10154 bltz rt, .L1 ; LONGCALL6/17_PCREL
10155 sethi ta, hi20(symbol) ; HI20/PTR
10156 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10157 jral ta ; PTR_RES/EMPTY/INSN16
10162 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10163 int pic_ext_target
= 0;
10164 bfd_signed_vma foff
;
10166 irelend
= internal_relocs
+ sec
->reloc_count
;
10167 laddr
= irel
->r_offset
;
10169 /* Get the reloc for the address from which the register is
10170 being loaded. This reloc will tell us which function is
10171 actually being called. */
10172 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10173 R_NDS32_EMPTY
, irel
->r_addend
);
10175 if (em_irel
== irelend
)
10177 (*_bfd_error_handler
)
10178 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10179 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10183 /* Get the value of the symbol referred to by the reloc. */
10184 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10187 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10188 || foff
>= CONSERVATIVE_24BIT_S1
)
10191 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10192 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10193 if (insn
& 0x80000000)
10196 insn
= bfd_getb32 (contents
+ laddr
);
10197 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10199 /* Relax to bgezal rt, label ; 17_PCREL
10200 or bltzal rt, label ; 17_PCREL */
10202 /* Convert to complimentary conditional call. */
10204 insn
= CONVERT_CONDITION_CALL (insn
);
10205 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10208 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10210 /* Set resolved relocation. */
10212 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10213 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10214 if (cond_irel
== irelend
)
10216 (*_bfd_error_handler
)
10217 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10218 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10221 cond_irel
->r_addend
= 1;
10223 /* Clear relocations. */
10226 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10229 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10230 R_NDS32_17_PCREL_RELA
, laddr
);
10231 if (cond_irel
!= irelend
)
10232 cond_irel
->r_info
=
10233 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10236 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10237 R_NDS32_INSN16
, irel
->r_addend
);
10238 if (cond_irel
!= irelend
)
10239 cond_irel
->r_info
=
10240 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10243 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10245 /* Relax to the following instruction sequence
10246 bltz rt, .L1 ; LONGCALL2/17_PCREL
10247 jal symbol ; 25_PCREL/PTR_RES
10250 /* Convert instruction. */
10252 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10254 /* Convert relocations. */
10255 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10256 R_NDS32_25_PCREL_RELA
);
10258 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10260 /* Set resolved relocation. */
10262 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10263 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10264 if (cond_irel
== irelend
)
10266 (*_bfd_error_handler
)
10267 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10268 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10271 cond_irel
->r_addend
= 1;
10274 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10275 R_NDS32_INSN16
, irel
->r_addend
);
10276 if (cond_irel
!= irelend
)
10277 cond_irel
->r_info
=
10278 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10283 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10286 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10287 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10288 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10289 Elf_Internal_Shdr
*symtab_hdr
)
10291 /* The pattern for LONGJUMP4.
10292 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10293 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10294 jr ta ; PTR_RES/INSN16/EMPTY */
10297 int seq_len
; /* Original length of instruction sequence. */
10299 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10300 int pic_ext_target
= 0;
10301 bfd_signed_vma foff
;
10303 irelend
= internal_relocs
+ sec
->reloc_count
;
10304 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10305 laddr
= irel
->r_offset
;
10306 *insn_len
= seq_len
;
10308 /* Get the reloc for the address from which the register is
10309 being loaded. This reloc will tell us which function is
10310 actually being called. */
10312 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10313 R_NDS32_HI20_RELA
, laddr
);
10315 if (hi_irel
== irelend
)
10317 (*_bfd_error_handler
)
10318 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10319 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10323 /* Get the value of the symbol referred to by the reloc. */
10324 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10327 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
10328 || foff
< -CONSERVATIVE_24BIT_S1
)
10331 /* Convert it to "j label", it may be converted to j8 in the final
10332 pass of relaxation. Therefore, we do not consider this currently. */
10333 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10334 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10335 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10336 R_NDS32_EMPTY
, irel
->r_addend
);
10338 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10340 (*_bfd_error_handler
)
10341 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10342 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10347 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10348 ptr_irel
->r_addend
= 1;
10350 /* Write instruction. */
10352 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10354 /* Clear relocations. */
10355 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10357 /* If there is function cse, HI20 can not remove now. */
10358 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10359 R_NDS32_LONGJUMP4
, laddr
);
10360 if (call_irel
== irelend
)
10364 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10370 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10373 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10374 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10375 int *seq_len
, bfd_byte
*contents
,
10376 Elf_Internal_Sym
*isymbuf
,
10377 Elf_Internal_Shdr
*symtab_hdr
)
10379 /* There are 2 variations for LONGJUMP5
10380 case 2-4; 1st insn convertible, 16-bit on.
10381 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10382 j label ; 25_PCREL/INSN16
10385 case 4-4; 1st insn not convertible
10386 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10387 j label ; 25_PCREL/INSN16
10391 Elf_Internal_Rela
*cond_irel
, *irelend
;
10392 int pic_ext_target
= 0;
10394 bfd_signed_vma foff
;
10395 uint32_t insn
, re_insn
= 0;
10396 uint16_t insn16
, re_insn16
= 0;
10397 unsigned long reloc
;
10399 enum elf_nds32_reloc_type checked_types
[] =
10400 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10401 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10403 irelend
= internal_relocs
+ sec
->reloc_count
;
10404 laddr
= irel
->r_offset
;
10406 /* Get the reloc for the address from which the register is
10407 being loaded. This reloc will tell us which function is
10408 actually being called. */
10411 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10412 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10413 if (cond_irel
== irelend
)
10415 (*_bfd_error_handler
)
10416 ("%B: warning: R_NDS32_LONGJUMP5 points to unrecognized"
10417 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10421 /* Get the value of the symbol referred to by the reloc. */
10422 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10425 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10426 || foff
>= CONSERVATIVE_16BIT_S1
)
10429 /* Get the all corresponding instructions. */
10430 insn
= bfd_getb32 (contents
+ laddr
);
10431 /* Check instruction size. */
10432 if (insn
& 0x80000000)
10435 insn16
= insn
>> 16;
10436 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10439 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10441 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10442 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10444 /* beqs label ; 15_PCREL. */
10445 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10446 reloc
= R_NDS32_15_PCREL_RELA
;
10448 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10449 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10451 /* beqz label ; 17_PCREL. */
10452 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10453 reloc
= R_NDS32_17_PCREL_RELA
;
10455 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
10456 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
10458 /* beqc label ; 9_PCREL. */
10459 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10460 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
10465 /* Set all relocations. */
10466 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
10468 /* Clean relocations. */
10469 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10470 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10472 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10473 checked_types
[i
], laddr
);
10474 if (cond_irel
!= irelend
)
10477 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10479 /* If the branch instruction is 2 byte, it cannot remove
10480 directly. Only convert it to nop16 and remove it after
10481 checking alignment issue. */
10482 insn16
= NDS32_NOP16
;
10483 bfd_putb16 (insn16
, contents
+ laddr
);
10484 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10487 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10496 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
10499 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10500 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10501 int *seq_len
, bfd_byte
*contents
,
10502 Elf_Internal_Sym
*isymbuf
,
10503 Elf_Internal_Shdr
*symtab_hdr
)
10505 /* There are 5 variations for LONGJUMP6
10506 case : 2-4-4-4; 1st insn convertible, 16-bit on.
10507 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10508 sethi ta, hi20(symbol) ; HI20/PTR
10509 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10510 jr ta ; PTR_RES/INSN16/EMPTY
10513 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
10514 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10515 sethi ta, hi20(symbol) ; HI20/PTR
10516 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10517 jr ta ; PTR_RES/INSN16/EMPTY
10520 enum elf_nds32_reloc_type checked_types
[] =
10521 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10522 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10524 int reloc_off
= 0, cond_removed
= 0;
10526 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
10527 int pic_ext_target
= 0;
10529 bfd_signed_vma foff
;
10530 uint32_t insn
, re_insn
= 0;
10531 uint16_t insn16
, re_insn16
= 0;
10532 unsigned long reloc
;
10534 irelend
= internal_relocs
+ sec
->reloc_count
;
10535 laddr
= irel
->r_offset
;
10537 /* Get the reloc for the address from which the register is
10538 being loaded. This reloc will tell us which function is
10539 actually being called. */
10540 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10541 R_NDS32_EMPTY
, irel
->r_addend
);
10543 if (em_irel
== irelend
)
10545 (*_bfd_error_handler
)
10546 ("%B: warning: R_NDS32_LONGJUMP6 points to unrecognized"
10547 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10551 /* Get the value of the symbol referred to by the reloc. */
10552 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10555 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10556 || foff
>= CONSERVATIVE_24BIT_S1
)
10559 insn
= bfd_getb32 (contents
+ laddr
);
10560 /* Check instruction size. */
10561 if (insn
& 0x80000000)
10564 insn16
= insn
>> 16;
10565 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10568 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10570 /* For simplicity of coding, we are going to modify the section
10571 contents, the section relocs, and the BFD symbol table. We
10572 must tell the rest of the code not to free up this
10573 information. It would be possible to instead create a table
10574 of changes which have to be made, as is done in coff-mips.c;
10575 that would be more work, but would require less memory when
10576 the linker is run. */
10578 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10579 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10581 /* beqs label ; 15_PCREL */
10582 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10583 reloc
= R_NDS32_15_PCREL_RELA
;
10586 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10587 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10589 /* beqz label ; 17_PCREL */
10590 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10591 reloc
= R_NDS32_17_PCREL_RELA
;
10594 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10595 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10597 /* Relax to one of the following 2 variations
10599 case 2-4; 1st insn convertible, 16-bit on.
10600 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10601 j label ; 25_PCREL/INSN16
10604 case 4-4; 1st insn not convertible
10605 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10606 j label ; 25_PCREL/INSN16
10609 /* Use j label as second instruction. */
10611 reloc
= R_NDS32_25_PCREL_RELA
;
10612 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10617 /* Set all relocations. */
10618 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
10621 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10622 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
10623 cond_irel
->r_addend
= 1;
10625 /* Use INSN16 of first branch instruction to distinguish if keeping
10626 INSN16 of final instruction or not. */
10627 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10628 R_NDS32_INSN16
, irel
->r_offset
);
10629 if (insn_irel
== irelend
)
10631 /* Clean the final INSN16. */
10633 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10634 R_NDS32_INSN16
, em_irel
->r_offset
);
10635 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10639 if (cond_removed
== 1)
10643 /* Clear relocations. */
10644 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10646 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10649 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10650 checked_types
[i
], laddr
);
10651 if (cond_irel
!= irelend
)
10654 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10656 /* If the branch instruction is 2 byte, it cannot remove
10657 directly. Only convert it to nop16 and remove it after
10658 checking alignment issue. */
10659 insn16
= NDS32_NOP16
;
10660 bfd_putb16 (insn16
, contents
+ laddr
);
10661 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10664 cond_irel
->r_info
=
10665 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10671 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
10672 R_NDS32_LONGJUMP5
);
10678 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
10681 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10682 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10683 int *seq_len
, bfd_byte
*contents
,
10684 Elf_Internal_Sym
*isymbuf
,
10685 Elf_Internal_Shdr
*symtab_hdr
)
10687 /* There are 2 variations for LONGJUMP5
10688 case 2-4; 1st insn convertible, 16-bit on.
10689 movi55 ta, imm11 ; LONGJUMP7/INSN16
10690 beq rt, ta, label ; 15_PCREL
10692 case 4-4; 1st insn not convertible
10693 movi55 ta, imm11 ; LONGJUMP7/INSN16
10694 beq rt, ta, label ; 15_PCREL */
10697 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
10698 int pic_ext_target
= 0;
10699 bfd_signed_vma foff
;
10700 uint32_t insn
, re_insn
= 0;
10704 irelend
= internal_relocs
+ sec
->reloc_count
;
10705 laddr
= irel
->r_offset
;
10707 /* Get the reloc for the address from which the register is
10708 being loaded. This reloc will tell us which function is
10709 actually being called. */
10712 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10713 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
10714 if (cond_irel
== irelend
)
10716 (*_bfd_error_handler
)
10717 ("%B: warning: R_NDS32_LONGJUMP7 points to unrecognized"
10718 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10722 /* Get the value of the symbol referred to by the reloc. */
10723 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10726 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_8BIT_S1
10727 || foff
>= CONSERVATIVE_8BIT_S1
)
10730 /* Get the first instruction for its size. */
10731 insn
= bfd_getb32 (contents
+ laddr
);
10732 if (insn
& 0x80000000)
10735 /* Get the immediate from movi55. */
10736 imm11
= N16_IMM5S (insn
>> 16);
10740 /* Get the immediate from movi. */
10741 imm11
= N32_IMM20S (insn
);
10744 /* Get the branch instruction. */
10745 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10746 /* Convert instruction to BR3. */
10747 if ((insn
>> 14) & 0x1)
10748 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
10750 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
10752 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10754 /* Set all relocations. */
10755 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10756 R_NDS32_WORD_9_PCREL_RELA
);
10758 /* Clean relocations. */
10759 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10760 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10761 R_NDS32_INSN16
, irel
->r_offset
);
10762 if (insn_irel
!= irelend
)
10766 /* If the first insntruction is 16bit, convert it to nop16. */
10767 insn16
= NDS32_NOP16
;
10768 bfd_putb16 (insn16
, contents
+ laddr
);
10769 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10772 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10780 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
10782 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
10785 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
10786 asection
*sec
, Elf_Internal_Rela
*irel
,
10787 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10788 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10789 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
)
10791 int eliminate_sethi
= 0, range_type
;
10793 bfd_vma local_sda
, laddr
;
10794 int seq_len
; /* Original length of instruction sequence. */
10796 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
10797 bfd_vma access_addr
= 0;
10798 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10799 enum elf_nds32_reloc_type checked_types
[] =
10800 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
10801 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
10802 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
10803 R_NDS32_TLS_LE_HI20
10806 irelend
= internal_relocs
+ sec
->reloc_count
;
10807 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10808 laddr
= irel
->r_offset
;
10809 *insn_len
= seq_len
;
10811 /* Get the high part relocation. */
10812 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10814 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10815 checked_types
[i
], laddr
);
10816 if (hi_irelfn
!= irelend
)
10820 if (hi_irelfn
== irelend
)
10822 (*_bfd_error_handler
)
10823 ("%B: warning: R_NDS32_LOADSTORE points to unrecognized"
10824 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10828 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
10829 nds32_elf_final_sda_base (sec
->output_section
->owner
,
10830 link_info
, &local_sda
, FALSE
);
10832 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
10834 case R_NDS32_HI20_RELA
:
10835 insn
= bfd_getb32 (contents
+ laddr
);
10837 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10839 if (range_type
== NDS32_LOADSTORE_IMM
)
10841 struct elf_link_hash_entry
*h
= NULL
;
10844 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
10846 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
10847 h
= elf_sym_hashes (abfd
)[indx
];
10850 if ((access_addr
< CONSERVATIVE_20BIT
)
10851 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10853 eliminate_sethi
= 1;
10857 /* This is avoid to relax symbol address which is fixed
10858 relocations. Ex: _stack. */
10859 if (h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
10863 if (!load_store_relax
)
10866 /* Case for set gp register. */
10867 if (N32_RT5 (insn
) == REG_GP
)
10870 if (range_type
== NDS32_LOADSTORE_FLOAT_S
10871 || range_type
== NDS32_LOADSTORE_FLOAT_S
)
10873 range_l
= sdata_range
[0][0];
10874 range_h
= sdata_range
[0][1];
10878 range_l
= sdata_range
[1][0];
10879 range_h
= sdata_range
[1][1];
10883 case R_NDS32_GOT_HI20
:
10885 calculate_got_memory_address (abfd
, link_info
, hi_irelfn
, symtab_hdr
);
10887 /* If this symbol is not in .got, the return value will be -1.
10888 Since the gp value is set to SDA_BASE but not GLOBAL_OFFSET_TABLE,
10889 a negative offset is allowed. */
10890 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10891 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10892 eliminate_sethi
= 1;
10895 case R_NDS32_PLT_GOTREL_HI20
:
10896 access_addr
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
,
10897 hi_irelfn
, symtab_hdr
);
10899 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10900 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10901 eliminate_sethi
= 1;
10904 case R_NDS32_GOTOFF_HI20
:
10906 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10908 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10909 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10910 eliminate_sethi
= 1;
10913 case R_NDS32_GOTPC_HI20
:
10914 /* The access_addr must consider r_addend of hi_irel. */
10915 access_addr
= sec
->output_section
->vma
+ sec
->output_offset
10916 + irel
->r_offset
+ hi_irelfn
->r_addend
;
10918 if ((bfd_signed_vma
) (local_sda
- access_addr
) < CONSERVATIVE_20BIT
10919 && (bfd_signed_vma
) (local_sda
- access_addr
) >= -CONSERVATIVE_20BIT
)
10920 eliminate_sethi
= 1;
10923 case R_NDS32_TLS_LE_HI20
:
10925 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10926 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
10927 access_addr
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
10928 if ((range_type
== NDS32_LOADSTORE_IMM
)
10929 && (bfd_signed_vma
) (access_addr
) < CONSERVATIVE_20BIT
10930 && (bfd_signed_vma
) (access_addr
) >= -CONSERVATIVE_20BIT
)
10931 eliminate_sethi
= 1;
10938 /* Delete sethi instruction. */
10939 if (eliminate_sethi
== 1
10940 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
10941 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
10943 hi_irelfn
->r_info
=
10944 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
10946 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10952 /* Relax LO12 relocation for nds32_elf_relax_section. */
10955 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
10956 asection
*sec
, Elf_Internal_Rela
*irel
,
10957 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
10958 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
10961 bfd_vma local_sda
, laddr
;
10962 unsigned long reloc
;
10963 bfd_vma access_addr
;
10964 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10965 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
10966 struct elf_link_hash_entry
*h
= NULL
;
10969 /* For SDA base relative relaxation. */
10970 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
10971 &local_sda
, FALSE
);
10973 irelend
= internal_relocs
+ sec
->reloc_count
;
10974 laddr
= irel
->r_offset
;
10975 insn
= bfd_getb32 (contents
+ laddr
);
10977 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
10980 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
10982 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
10984 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
10985 h
= elf_sym_hashes (abfd
)[indx
];
10988 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
10989 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10991 reloc
= R_NDS32_20_RELA
;
10992 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10993 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
10994 bfd_putb32 (insn
, contents
+ laddr
);
10996 /* This is avoid to relax symbol address which is fixed
10997 relocations. Ex: _stack. */
10998 else if (N32_OP6 (insn
) == N32_OP6_ORI
10999 && h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
11003 range_l
= sdata_range
[1][0];
11004 range_h
= sdata_range
[1][1];
11005 switch (ELF32_R_TYPE (irel
->r_info
))
11007 case R_NDS32_LO12S0_RELA
:
11008 reloc
= R_NDS32_SDA19S0_RELA
;
11010 case R_NDS32_LO12S1_RELA
:
11011 reloc
= R_NDS32_SDA18S1_RELA
;
11013 case R_NDS32_LO12S2_RELA
:
11014 reloc
= R_NDS32_SDA17S2_RELA
;
11016 case R_NDS32_LO12S2_DP_RELA
:
11017 range_l
= sdata_range
[0][0];
11018 range_h
= sdata_range
[0][1];
11019 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11021 case R_NDS32_LO12S2_SP_RELA
:
11022 range_l
= sdata_range
[0][0];
11023 range_h
= sdata_range
[0][1];
11024 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11030 /* There are range_h and range_l because linker has to promise
11031 all sections move cross one page together. */
11032 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11033 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11035 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11037 /* Maybe we should add R_NDS32_INSN16 reloc type here
11038 or manually do some optimization. sethi can't be
11039 eliminated when updating $gp so the relative ori
11040 needs to be preserved. */
11043 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11046 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11047 bfd_putb32 (insn
, contents
+ laddr
);
11049 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11051 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11052 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11054 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11061 /* Relax low part of PIC instruction pattern. */
11064 nds32_elf_relax_piclo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11065 asection
*sec
, Elf_Internal_Rela
*irel
,
11066 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11067 Elf_Internal_Shdr
*symtab_hdr
)
11070 bfd_vma local_sda
, laddr
;
11071 bfd_signed_vma foff
;
11072 unsigned long reloc
;
11074 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11075 &local_sda
, FALSE
);
11076 laddr
= irel
->r_offset
;
11077 insn
= bfd_getb32 (contents
+ laddr
);
11079 if (N32_OP6 (insn
) != N32_OP6_ORI
)
11082 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
)
11084 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11085 symtab_hdr
) - local_sda
;
11086 reloc
= R_NDS32_GOT20
;
11088 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
)
11090 foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
11091 symtab_hdr
) - local_sda
;
11092 reloc
= R_NDS32_PLT_GOTREL_LO20
;
11094 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
)
11096 foff
= calculate_memory_address (abfd
, irel
, isymbuf
,
11097 symtab_hdr
) - local_sda
;
11098 reloc
= R_NDS32_GOTOFF
;
11100 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
)
11102 foff
= local_sda
- sec
->output_section
->vma
+ sec
->output_offset
11103 + irel
->r_offset
+ irel
->r_addend
;
11104 reloc
= R_NDS32_GOTPC20
;
11109 if ((foff
< CONSERVATIVE_20BIT
) && (foff
>= -CONSERVATIVE_20BIT
))
11111 /* Turn into MOVI. */
11112 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11113 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11114 bfd_putb32 (insn
, contents
+ laddr
);
11118 /* Relax low part of LE TLS instruction pattern. */
11121 nds32_elf_relax_letlslo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11122 Elf_Internal_Rela
*irel
,
11123 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11124 Elf_Internal_Shdr
*symtab_hdr
)
11128 bfd_signed_vma foff
;
11129 unsigned long reloc
;
11131 laddr
= irel
->r_offset
;
11132 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11133 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11134 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11135 insn
= bfd_getb32 (contents
+ laddr
);
11137 if ( (bfd_signed_vma
) (foff
) < CONSERVATIVE_20BIT
11138 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_20BIT
)
11140 /* Pattern sethi-ori transform to movi. */
11141 reloc
= R_NDS32_TLS_LE_20
;
11142 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11143 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11144 bfd_putb32 (insn
, contents
+ laddr
);
11148 /* Relax LE TLS calculate address instruction pattern. */
11151 nds32_elf_relax_letlsadd (struct bfd_link_info
*link_info
, bfd
*abfd
,
11152 asection
*sec
, Elf_Internal_Rela
*irel
,
11153 Elf_Internal_Rela
*internal_relocs
,
11154 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11155 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11157 /* Local TLS non-pic
11158 sethi ta, hi20(symbol@tpoff) ; TLS_LE_HI20
11159 ori ta, ta, lo12(symbol@tpoff) ; TLS_LE_LO12
11160 add ra, ta, tp ; TLS_LE_ADD */
11164 bfd_signed_vma foff
;
11165 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11167 irelend
= internal_relocs
+ sec
->reloc_count
;
11168 laddr
= irel
->r_offset
;
11169 insn
= bfd_getb32 (contents
+ laddr
);
11170 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11171 R_NDS32_PTR_RESOLVED
);
11172 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11173 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11174 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11176 /* The range is +/-16k. */
11177 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11178 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11180 /* Transform add to addi. */
11181 insn
= N32_TYPE2 (ADDI
, N32_RT5 (insn
), N32_RB5 (insn
), 0);
11183 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11185 bfd_putb32 (insn
, contents
+ laddr
);
11186 if (i1_irelfn
!= irelend
)
11188 i1_irelfn
->r_addend
|= 1;
11194 /* Relax LE TLS load store instruction pattern. */
11197 nds32_elf_relax_letlsls (struct bfd_link_info
*link_info
, bfd
*abfd
,
11198 asection
*sec
, Elf_Internal_Rela
*irel
,
11199 Elf_Internal_Rela
*internal_relocs
,
11200 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11201 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11206 bfd_signed_vma foff
;
11207 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11210 irelend
= internal_relocs
+ sec
->reloc_count
;
11211 laddr
= irel
->r_offset
;
11212 insn
= bfd_getb32 (contents
+ laddr
);
11213 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11214 R_NDS32_PTR_RESOLVED
);
11215 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11216 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11217 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11219 switch ((N32_OP6 (insn
) << 8) | (insn
& 0xff))
11221 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11222 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11223 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11224 /* The range is +/-16k. */
11225 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11226 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11229 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11231 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11235 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11236 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11237 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11238 /* The range is +/-32k. */
11239 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S1
11240 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S1
)
11243 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11245 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S1
);
11249 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11250 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11251 /* The range is +/-64k. */
11252 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S2
11253 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S2
)
11256 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11258 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S2
);
11268 bfd_putb32 (insn
, contents
+ laddr
);
11269 if (i1_irelfn
!= irelend
)
11271 i1_irelfn
->r_addend
|= 1;
11277 /* Relax PTR relocation for nds32_elf_relax_section. */
11280 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11281 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11282 int *seq_len
, bfd_byte
*contents
)
11284 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11286 irelend
= internal_relocs
+ sec
->reloc_count
;
11289 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11290 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11292 if (re_irel
== irelend
)
11294 (*_bfd_error_handler
)
11295 ("%B: warning: R_NDS32_PTR points to unrecognized reloc at 0x%lx.",
11296 abfd
, (long) irel
->r_offset
);
11300 if (re_irel
->r_addend
!= 1)
11303 /* Pointed target is relaxed and no longer needs this void *,
11304 change the type to NONE. */
11305 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11307 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11308 not exist, it means only count 1 and remove it directly. */
11309 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11310 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11311 R_NDS32_PTR_COUNT
);
11312 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11314 if (count_irel
!= irelend
)
11316 if (--count_irel
->r_addend
> 0)
11320 if (ptr_irel
!= irelend
)
11323 /* If the PTR_COUNT is already 0, remove current instruction. */
11324 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11329 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11332 nds32_elf_relax_pltgot_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11333 asection
*sec
, Elf_Internal_Rela
*irel
,
11334 Elf_Internal_Rela
*internal_relocs
,
11335 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11336 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11339 bfd_signed_vma foff
;
11340 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11341 bfd_vma local_sda
, laddr
;
11343 irelend
= internal_relocs
+ sec
->reloc_count
;
11344 laddr
= irel
->r_offset
;
11345 insn
= bfd_getb32 (contents
+ laddr
);
11347 /* FIXME: It's a little trouble to turn JRAL5 to JAL since
11348 we need additional space. It might be help if we could
11349 borrow some space from instructions to be eliminated
11350 such as sethi, ori, add. */
11351 if (insn
& 0x80000000)
11354 if (nds32_elf_check_dup_relocs
11355 (irel
, internal_relocs
, irelend
, R_NDS32_PLT_GOT_SUFF
))
11359 find_relocs_at_address (irel
, internal_relocs
, irelend
,
11360 R_NDS32_PTR_RESOLVED
);
11363 The boundary should be reduced since the .plt section hasn't
11364 been created and the address of specific entry is still unknown
11365 Maybe the range between the function call and the begin of the
11366 .text section can be used to decide if the .plt is in the range
11367 of function call. */
11369 if (N32_OP6 (insn
) == N32_OP6_ALU1
11370 && N32_SUB5 (insn
) == N32_ALU1_ADD
)
11372 /* Get the value of the symbol referred to by the reloc. */
11373 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11374 &local_sda
, FALSE
);
11375 foff
= (bfd_signed_vma
) (calculate_plt_memory_address
11376 (abfd
, link_info
, isymbuf
, irel
,
11377 symtab_hdr
) - local_sda
);
11378 /* This condition only happened when symbol is undefined. */
11382 if (foff
< -CONSERVATIVE_19BIT
|| foff
>= CONSERVATIVE_19BIT
)
11384 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11385 R_NDS32_PLT_GOTREL_LO19
);
11387 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11389 else if (N32_OP6 (insn
) == N32_OP6_JREG
11390 && N32_SUB5 (insn
) == N32_JREG_JRAL
)
11392 /* Get the value of the symbol referred to by the reloc. */
11394 calculate_plt_offset (abfd
, sec
, link_info
, isymbuf
, irel
, symtab_hdr
);
11395 /* This condition only happened when symbol is undefined. */
11398 if (foff
< -CONSERVATIVE_24BIT_S1
|| foff
>= CONSERVATIVE_24BIT_S1
)
11400 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_25_PLTREL
);
11406 bfd_putb32 (insn
, contents
+ laddr
);
11407 if (i1_irelfn
!= irelend
)
11409 i1_irelfn
->r_addend
|= 1;
11414 /* Relax GOT_SUFF relocation for nds32_elf_relax_section. */
11417 nds32_elf_relax_got_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11418 asection
*sec
, Elf_Internal_Rela
*irel
,
11419 Elf_Internal_Rela
*internal_relocs
,
11420 bfd_byte
*contents
, Elf_Internal_Shdr
*symtab_hdr
,
11421 bfd_boolean
*again
)
11424 bfd_signed_vma foff
;
11425 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11426 bfd_vma local_sda
, laddr
;
11428 irelend
= internal_relocs
+ sec
->reloc_count
;
11429 laddr
= irel
->r_offset
;
11430 insn
= bfd_getb32 (contents
+ laddr
);
11431 if (insn
& 0x80000000)
11434 if (nds32_elf_check_dup_relocs
11435 (irel
, internal_relocs
, irelend
, R_NDS32_GOT_SUFF
))
11438 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11439 R_NDS32_PTR_RESOLVED
);
11441 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11442 &local_sda
, FALSE
);
11443 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11444 symtab_hdr
) - local_sda
;
11446 if (foff
< CONSERVATIVE_19BIT
&& foff
>= -CONSERVATIVE_19BIT
)
11448 /* Turn LW to LWI.GP. Change relocation type to R_NDS32_GOT_REL. */
11449 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11451 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_GOT17S2_RELA
);
11452 bfd_putb32 (insn
, contents
+ laddr
);
11453 if (i1_irelfn
!= irelend
)
11455 i1_irelfn
->r_addend
|= 1;
11461 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11464 nds32_elf_relax_gotoff_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11465 asection
*sec
, Elf_Internal_Rela
*irel
,
11466 Elf_Internal_Rela
*internal_relocs
,
11467 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11468 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11470 int opc_insn_gotoff
;
11472 bfd_signed_vma foff
;
11473 Elf_Internal_Rela
*i1_irelfn
, *i2_irelfn
, *irelend
;
11474 bfd_vma local_sda
, laddr
;
11476 irelend
= internal_relocs
+ sec
->reloc_count
;
11477 laddr
= irel
->r_offset
;
11478 insn
= bfd_getb32 (contents
+ laddr
);
11480 if (insn
& 0x80000000)
11483 if (nds32_elf_check_dup_relocs
11484 (irel
, internal_relocs
, irelend
, R_NDS32_GOTOFF_SUFF
))
11487 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11488 R_NDS32_PTR_RESOLVED
);
11489 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11490 &local_sda
, FALSE
);
11491 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11492 foff
= foff
- local_sda
;
11494 if (foff
>= CONSERVATIVE_19BIT
|| foff
< -CONSERVATIVE_19BIT
)
11497 /* Concatenate opcode and sub-opcode for switch case.
11498 It may be MEM or ALU1. */
11499 opc_insn_gotoff
= (N32_OP6 (insn
) << 8) | (insn
& 0xff);
11500 switch (opc_insn_gotoff
)
11502 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11503 /* 4-byte aligned. */
11504 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11506 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11508 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11509 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
11511 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11513 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11514 /* 2-byte aligned. */
11515 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
11517 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11519 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11520 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
11522 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11524 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11525 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
11527 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11529 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11530 /* 1-byte aligned. */
11531 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
11533 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11535 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11536 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
11538 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11540 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11541 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
11543 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11545 case (N32_OP6_ALU1
<< 8) | N32_ALU1_ADD
:
11546 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11548 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11554 bfd_putb32 (insn
, contents
+ laddr
);
11555 if (i1_irelfn
!= irelend
)
11557 i1_irelfn
->r_addend
|= 1;
11560 if ((i2_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11561 R_NDS32_INSN16
)) != irelend
)
11562 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11567 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11568 Elf_Internal_Rela
*internal_relocs
,
11569 bfd_byte
*contents
,
11570 nds32_elf_blank_t
**relax_blank_list
,
11571 int optimize
, int opt_size
)
11573 /* This code block is used to adjust 4-byte alignment by relax a pair
11574 of instruction a time.
11576 It recognizes three types of relocations.
11577 1. R_NDS32_LABEL - a aligment.
11578 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11579 3. is_16bit_NOP () - remove a 16-bit instruction. */
11581 /* TODO: It seems currently implementation only support 4-byte aligment.
11582 We should handle any-aligment. */
11584 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11585 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11586 Elf_Internal_Rela rel_temp
;
11587 Elf_Internal_Rela
*irelend
;
11591 /* Checking for branch relaxation relies on the relocations to
11592 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11593 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11594 sizeof (Elf_Internal_Rela
), compar_reloc
);
11596 irelend
= internal_relocs
+ sec
->reloc_count
;
11598 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11599 /* FIXME: Can we generate the right order in assembler?
11600 So we don't have to swapping them here. */
11602 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11603 label_rel
< irelend
; label_rel
++)
11605 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11608 /* Find the first reloc has the same offset with label_rel. */
11609 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11612 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11614 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11616 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11619 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11620 && insn_rel
< label_rel
)
11622 /* Swap the two reloc if the R_NDS32_INSN16 is
11623 before R_NDS32_LABEL. */
11624 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11625 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11626 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11632 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11633 or higher, remove other R_NDS32_LABEL with lower alignment.
11634 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11635 then the R_NDS32_LABEL sequence is broke. */
11636 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11638 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11640 if (label_rel
== NULL
)
11642 if (tmp_rel
->r_addend
< 2)
11643 label_rel
= tmp_rel
;
11646 else if (tmp_rel
->r_addend
> 1)
11648 /* Remove all LABEL relocation from label_rel to tmp_rel
11649 including relocations with same offset as tmp_rel. */
11650 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
11651 || tmp2_rel
->r_offset
== tmp_rel
->r_offset
; tmp2_rel
++)
11653 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11654 && tmp2_rel
->r_addend
< 2)
11656 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11662 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11664 /* A new INSN16 which can be converted, so clear label_rel. */
11665 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11667 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11674 /* Optimized for speed and nothing has not been relaxed.
11675 It's time to align labels.
11676 We may convert a 16-bit instruction right before a label to
11677 32-bit, in order to align the label if necessary
11678 all reloc entries has been sorted by r_offset. */
11679 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
11681 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11682 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11685 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11687 /* A new INSN16 found, resize the old one. */
11688 if (is_convert_32_to_16
11689 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11690 || is_16bit_NOP (abfd
, sec
, irel
))
11694 /* Previous INSN16 reloc exists, reduce its
11696 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11699 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11700 internal_relocs
, irelend
, insn16
);
11702 if (!insert_nds32_elf_blank_recalc_total
11703 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11706 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11708 if (!insert_nds32_elf_blank_recalc_total
11709 (relax_blank_list
, insn_rel
->r_offset
, 2))
11713 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
11715 /* Save the new one for later use. */
11719 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11722 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
11724 /* Search for label. */
11725 int force_relax
= 0;
11727 /* Label on 16-bit instruction or optimization
11728 needless, just reset this reloc. */
11729 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
11730 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
11733 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11738 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
11739 irel
->r_offset
, 1);
11743 /* Check if there is case which can not be aligned. */
11744 if (irel
->r_addend
== 2 && address
& 0x2)
11749 /* Try to align this label. */
11751 if ((irel
->r_addend
& 0x1f) < 2)
11753 /* Check if there is a INSN16 at the same address.
11754 Label_rel always seats before insn_rel after
11757 /* Search for INSN16 at LABEL location. If INSN16 is at
11758 same location and this LABEL alignment is lower than 2,
11759 the INSN16 can be converted to 2-byte. */
11760 for (tmp_rel
= irel
;
11761 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
11764 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
11765 && (is_convert_32_to_16
11766 (abfd
, sec
, tmp_rel
, internal_relocs
,
11768 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
11776 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
11778 /* Label not aligned. */
11779 /* Previous reloc exists, reduce its size to 16-bit. */
11780 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
11781 internal_relocs
, irelend
, &insn16
))
11783 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11784 internal_relocs
, irelend
, insn16
);
11786 if (!insert_nds32_elf_blank_recalc_total
11787 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11790 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11792 if (!insert_nds32_elf_blank_recalc_total
11793 (relax_blank_list
, insn_rel
->r_offset
, 2))
11798 /* INSN16 reloc is used. */
11804 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
11805 if (insn_rel
&& (address
& 0x2 || opt_size
))
11807 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11810 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
11812 if (!insert_nds32_elf_blank_recalc_total
11813 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11815 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11818 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11820 if (!insert_nds32_elf_blank_recalc_total
11821 (relax_blank_list
, insn_rel
->r_offset
, 2))
11823 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11831 /* Pick relaxation round. */
11834 nds32_elf_pick_relax (bfd_boolean init
, asection
*sec
, bfd_boolean
*again
,
11835 struct elf_nds32_link_hash_table
*table
,
11836 struct bfd_link_info
*link_info
)
11838 static asection
*final_sec
, *first_sec
= NULL
;
11839 static bfd_boolean normal_again
= FALSE
;
11840 static bfd_boolean set
= FALSE
;
11841 static bfd_boolean first
= TRUE
;
11842 int round_table
[] = {
11843 NDS32_RELAX_NORMAL_ROUND
,
11844 NDS32_RELAX_JUMP_IFC_ROUND
,
11845 NDS32_RELAX_EX9_BUILD_ROUND
,
11846 NDS32_RELAX_EX9_REPLACE_ROUND
,
11848 static int pass
= 0;
11849 static int relax_round
;
11851 /* The new round. */
11852 if (init
&& first_sec
== sec
)
11855 normal_again
= FALSE
;
11860 /* Run an empty run to get the final section. */
11861 relax_round
= NDS32_RELAX_EMPTY_ROUND
;
11863 /* It has to enter relax again because we can
11864 not make sure what the final turn is. */
11873 /* Not reenter yet. */
11875 return relax_round
;
11878 relax_round
= round_table
[pass
];
11880 if (!init
&& relax_round
== NDS32_RELAX_NORMAL_ROUND
&& *again
)
11881 normal_again
= TRUE
;
11883 if (!init
&& final_sec
== sec
)
11885 switch (relax_round
)
11887 case NDS32_RELAX_NORMAL_ROUND
:
11890 /* Normal relaxation done. */
11891 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11896 else if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11898 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11901 else if (table
->ex9_import_file
)
11903 /* Import ex9 table. */
11904 if (table
->update_ex9_table
)
11905 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11907 pass
+= 3; /* NDS32_RELAX_EX9_REPLACE_ROUND */
11908 nds32_elf_ex9_import_table (link_info
);
11913 case NDS32_RELAX_JUMP_IFC_ROUND
:
11914 if (!nds32_elf_ifc_finish (link_info
))
11915 (*_bfd_error_handler
) (_("error: Jump IFC Fail."));
11916 if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11922 case NDS32_RELAX_EX9_BUILD_ROUND
:
11923 nds32_elf_ex9_finish (link_info
);
11927 case NDS32_RELAX_EX9_REPLACE_ROUND
:
11928 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11930 /* Do jump IFC optimization again. */
11931 if (!nds32_elf_ifc_finish (link_info
))
11932 (*_bfd_error_handler
) (_("error: Jump IFC Fail."));
11940 return relax_round
;
11944 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
11945 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
11947 nds32_elf_blank_t
*relax_blank_list
= NULL
;
11948 Elf_Internal_Shdr
*symtab_hdr
;
11949 Elf_Internal_Rela
*internal_relocs
;
11950 Elf_Internal_Rela
*irel
;
11951 Elf_Internal_Rela
*irelend
;
11952 Elf_Internal_Sym
*isymbuf
= NULL
;
11953 bfd_byte
*contents
= NULL
;
11954 bfd_boolean result
= TRUE
;
11960 /* Target dependnet option. */
11961 struct elf_nds32_link_hash_table
*table
;
11962 int load_store_relax
;
11965 relax_blank_list
= NULL
;
11969 /* Nothing to do for
11970 * relocatable link or
11971 * non-relocatable section or
11972 * non-code section or
11974 * no reloc entry. */
11975 if (bfd_link_relocatable (link_info
)
11976 || (sec
->flags
& SEC_RELOC
) == 0
11977 || (sec
->flags
& SEC_EXCLUDE
) == 1
11978 || (sec
->flags
& SEC_CODE
) == 0
11982 /* 09.12.11 Workaround. */
11983 /* We have to adjust align for R_NDS32_LABEL if needed.
11984 The adjust approach only can fix 2-byte align once. */
11985 if (sec
->alignment_power
> 2)
11988 /* The optimization type to do. */
11990 table
= nds32_elf_hash_table (link_info
);
11991 relax_round
= nds32_elf_pick_relax (TRUE
, sec
, again
, table
, link_info
);
11992 switch (relax_round
)
11994 case NDS32_RELAX_JUMP_IFC_ROUND
:
11995 /* Here is the entrance of ifc jump relaxation. */
11996 if (!nds32_elf_ifc_calc (link_info
, abfd
, sec
))
11998 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12001 case NDS32_RELAX_EX9_BUILD_ROUND
:
12002 /* Here is the entrance of ex9 relaxation. There are two pass of
12003 ex9 relaxation. The one is to traverse all instructions and build
12004 the hash table. The other one is to compare instructions and replace
12006 if (!nds32_elf_ex9_build_hash_table (abfd
, sec
, link_info
))
12008 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12011 case NDS32_RELAX_EX9_REPLACE_ROUND
:
12012 if (!nds32_elf_ex9_replace_instruction (link_info
, abfd
, sec
))
12016 case NDS32_RELAX_EMPTY_ROUND
:
12017 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12020 case NDS32_RELAX_NORMAL_ROUND
:
12022 if (sec
->reloc_count
== 0)
12027 /* The begining of general relaxation. */
12029 if (is_SDA_BASE_set
== 0)
12032 is_SDA_BASE_set
= 1;
12033 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12035 relax_range_measurement (abfd
);
12038 if (is_ITB_BASE_set
== 0)
12040 /* Set the _ITB_BASE_. */
12041 if (!nds32_elf_ex9_itb_base (link_info
))
12043 (*_bfd_error_handler
) (_("%B: error: Cannot set _ITB_BASE_"), abfd
);
12044 bfd_set_error (bfd_error_bad_value
);
12048 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12049 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12050 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12051 TRUE
/* keep_memory */);
12052 if (internal_relocs
== NULL
)
12055 irelend
= internal_relocs
+ sec
->reloc_count
;
12056 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12057 irelend
, R_NDS32_RELAX_ENTRY
);
12059 if (irel
== irelend
)
12062 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12064 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12066 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12070 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12073 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12077 load_store_relax
= table
->load_store_relax
;
12079 /* Get symbol table and section content. */
12080 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12081 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12084 /* Do relax loop only when finalize is not done.
12085 Take care of relaxable relocs except INSN16. */
12086 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12088 int seq_len
; /* Original length of instruction sequence. */
12089 int insn_len
= 0; /* Final length of instruction sequence. */
12090 bfd_boolean removed
;
12093 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12094 && (irel
->r_addend
& 0x1f) >= 2)
12097 /* Relocation Types
12098 R_NDS32_LONGCALL1 53
12099 R_NDS32_LONGCALL2 54
12100 R_NDS32_LONGCALL3 55
12101 R_NDS32_LONGJUMP1 56
12102 R_NDS32_LONGJUMP2 57
12103 R_NDS32_LONGJUMP3 58
12104 R_NDS32_LOADSTORE 59 */
12105 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12106 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12107 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12109 /* Relocation Types
12110 R_NDS32_LONGCALL4 107
12111 R_NDS32_LONGCALL5 108
12112 R_NDS32_LONGCALL6 109
12113 R_NDS32_LONGJUMP4 110
12114 R_NDS32_LONGJUMP5 111
12115 R_NDS32_LONGJUMP6 112
12116 R_NDS32_LONGJUMP7 113 */
12117 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12118 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12121 /* Relocation Types
12122 R_NDS32_LO12S0_RELA 30
12123 R_NDS32_LO12S1_RELA 29
12124 R_NDS32_LO12S2_RELA 28
12125 R_NDS32_LO12S2_SP_RELA 71
12126 R_NDS32_LO12S2_DP_RELA 70
12127 R_NDS32_GOT_LO12 46
12128 R_NDS32_GOTOFF_LO12 50
12129 R_NDS32_PLTREL_LO12 65
12130 R_NDS32_PLT_GOTREL_LO12 67
12131 R_NDS32_17IFC_PCREL_RELA 96
12132 R_NDS32_GOT_SUFF 193
12133 R_NDS32_GOTOFF_SUFF 194
12134 R_NDS32_PLT_GOT_SUFF 195
12135 R_NDS32_MULCALL_SUFF 196
12137 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12138 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12139 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12140 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12141 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12142 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12143 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12144 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12145 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12146 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12147 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12148 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12149 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12150 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12151 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
)
12156 insn_len
= seq_len
;
12159 switch (ELF32_R_TYPE (irel
->r_info
))
12161 case R_NDS32_LONGCALL1
:
12162 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12163 &insn_len
, contents
, isymbuf
,
12166 case R_NDS32_LONGCALL2
:
12167 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12168 &insn_len
, contents
, isymbuf
,
12171 case R_NDS32_LONGCALL3
:
12172 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12173 &insn_len
, contents
, isymbuf
,
12176 case R_NDS32_LONGJUMP1
:
12177 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12178 &insn_len
, contents
, isymbuf
,
12181 case R_NDS32_LONGJUMP2
:
12182 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12183 &insn_len
, contents
, isymbuf
,
12186 case R_NDS32_LONGJUMP3
:
12187 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12188 &insn_len
, contents
, isymbuf
,
12191 case R_NDS32_LONGCALL4
:
12192 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12193 &insn_len
, contents
, isymbuf
,
12196 case R_NDS32_LONGCALL5
:
12197 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12198 &insn_len
, contents
, isymbuf
,
12201 case R_NDS32_LONGCALL6
:
12202 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12203 &insn_len
, contents
, isymbuf
,
12206 case R_NDS32_LONGJUMP4
:
12207 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12208 &insn_len
, contents
, isymbuf
,
12211 case R_NDS32_LONGJUMP5
:
12212 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12213 &insn_len
, &seq_len
, contents
,
12214 isymbuf
, symtab_hdr
);
12216 case R_NDS32_LONGJUMP6
:
12217 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12218 &insn_len
, &seq_len
, contents
,
12219 isymbuf
, symtab_hdr
);
12221 case R_NDS32_LONGJUMP7
:
12222 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12223 &insn_len
, &seq_len
, contents
,
12224 isymbuf
, symtab_hdr
);
12226 case R_NDS32_LOADSTORE
:
12227 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12228 internal_relocs
, &insn_len
,
12229 contents
, isymbuf
, symtab_hdr
,
12232 case R_NDS32_LO12S0_RELA
:
12233 case R_NDS32_LO12S1_RELA
:
12234 case R_NDS32_LO12S2_DP_RELA
:
12235 case R_NDS32_LO12S2_SP_RELA
:
12236 case R_NDS32_LO12S2_RELA
:
12237 /* Relax for low part. */
12238 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12239 contents
, isymbuf
, symtab_hdr
);
12241 /* It is impossible to delete blank, so just continue. */
12243 case R_NDS32_GOT_LO12
:
12244 case R_NDS32_GOTOFF_LO12
:
12245 case R_NDS32_PLTREL_LO12
:
12246 case R_NDS32_PLT_GOTREL_LO12
:
12247 case R_NDS32_GOTPC_LO12
:
12248 /* Relax for PIC gp-relative low part. */
12249 nds32_elf_relax_piclo12 (link_info
, abfd
, sec
, irel
, contents
,
12250 isymbuf
, symtab_hdr
);
12252 /* It is impossible to delete blank, so just continue. */
12254 case R_NDS32_TLS_LE_LO12
:
12255 /* Relax for LE TLS low part. */
12256 nds32_elf_relax_letlslo12 (link_info
, abfd
, irel
, contents
,
12257 isymbuf
, symtab_hdr
);
12259 /* It is impossible to delete blank, so just continue. */
12261 case R_NDS32_TLS_LE_ADD
:
12262 nds32_elf_relax_letlsadd (link_info
, abfd
, sec
, irel
, internal_relocs
,
12263 contents
, isymbuf
, symtab_hdr
, again
);
12264 /* It is impossible to delete blank, so just continue. */
12266 case R_NDS32_TLS_LE_LS
:
12267 nds32_elf_relax_letlsls (link_info
, abfd
, sec
, irel
, internal_relocs
,
12268 contents
, isymbuf
, symtab_hdr
, again
);
12271 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12272 &insn_len
, &seq_len
, contents
);
12274 case R_NDS32_PLT_GOT_SUFF
:
12275 nds32_elf_relax_pltgot_suff (link_info
, abfd
, sec
, irel
,
12276 internal_relocs
, contents
,
12277 isymbuf
, symtab_hdr
, again
);
12278 /* It is impossible to delete blank, so just continue. */
12280 case R_NDS32_GOT_SUFF
:
12281 nds32_elf_relax_got_suff (link_info
, abfd
, sec
, irel
,
12282 internal_relocs
, contents
,
12283 symtab_hdr
, again
);
12284 /* It is impossible to delete blank, so just continue. */
12286 case R_NDS32_GOTOFF_SUFF
:
12287 nds32_elf_relax_gotoff_suff (link_info
, abfd
, sec
, irel
,
12288 internal_relocs
, contents
,
12289 isymbuf
, symtab_hdr
, again
);
12290 /* It is impossible to delete blank, so just continue. */
12296 if (removed
&& seq_len
- insn_len
> 0)
12298 if (!insert_nds32_elf_blank
12299 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12300 seq_len
- insn_len
))
12306 calc_nds32_blank_total (relax_blank_list
);
12308 if (table
->relax_fp_as_gp
)
12310 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12314 if (*again
== FALSE
)
12316 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12322 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12324 if (*again
== FALSE
)
12326 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12327 &relax_blank_list
, optimize
, opt_size
))
12331 /* It doesn't matter optimize_for_space_no_align anymore.
12332 If object file is assembled with flag '-Os',
12333 the we don't adjust jump-destination on 4-byte boundary. */
12335 if (relax_blank_list
)
12337 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12338 relax_blank_list
= NULL
;
12341 if (*again
== FALSE
)
12343 /* Closing the section, so we don't relax it anymore. */
12344 bfd_vma sec_size_align
;
12345 Elf_Internal_Rela
*tmp_rel
;
12347 /* Pad to alignment boundary. Only handle current section alignment. */
12348 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12349 & ((-1U) << sec
->alignment_power
);
12350 if ((sec_size_align
- sec
->size
) & 0x2)
12352 insn16
= NDS32_NOP16
;
12353 bfd_putb16 (insn16
, contents
+ sec
->size
);
12357 while (sec_size_align
!= sec
->size
)
12359 insn
= NDS32_NOP32
;
12360 bfd_putb32 (insn
, contents
+ sec
->size
);
12364 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12365 irelend
, R_NDS32_RELAX_ENTRY
);
12366 if (tmp_rel
!= irelend
)
12367 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12369 clean_nds32_elf_blank ();
12373 if (internal_relocs
!= NULL
12374 && elf_section_data (sec
)->relocs
!= internal_relocs
)
12375 free (internal_relocs
);
12377 if (contents
!= NULL
12378 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12381 if (isymbuf
!= NULL
&& symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12391 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12393 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12394 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12399 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12400 struct bfd_link_info
*info
,
12401 void *finfo ATTRIBUTE_UNUSED
,
12402 bfd_boolean (*func
) (void *, const char *,
12403 Elf_Internal_Sym
*,
12405 struct elf_link_hash_entry
*)
12408 FILE *sym_ld_script
= NULL
;
12409 struct elf_nds32_link_hash_table
*table
;
12411 table
= nds32_elf_hash_table (info
);
12412 sym_ld_script
= table
->sym_ld_script
;
12414 if (check_start_export_sym
)
12415 fprintf (sym_ld_script
, "}\n");
12420 static enum elf_reloc_type_class
12421 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12422 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12423 const Elf_Internal_Rela
*rela
)
12425 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12427 case R_NDS32_RELATIVE
:
12428 return reloc_class_relative
;
12429 case R_NDS32_JMP_SLOT
:
12430 return reloc_class_plt
;
12432 return reloc_class_copy
;
12434 return reloc_class_normal
;
12438 /* Put target dependent option into info hash table. */
12440 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12441 int relax_fp_as_gp
,
12442 int eliminate_gc_relocs
,
12443 FILE * sym_ld_script
, int load_store_relax
,
12444 int target_optimize
, int relax_status
,
12445 int relax_round
, FILE * ex9_export_file
,
12446 FILE * ex9_import_file
,
12447 int update_ex9_table
, int ex9_limit
,
12448 bfd_boolean ex9_loop_aware
,
12449 bfd_boolean ifc_loop_aware
)
12451 struct elf_nds32_link_hash_table
*table
;
12453 table
= nds32_elf_hash_table (link_info
);
12457 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12458 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12459 table
->sym_ld_script
= sym_ld_script
;
12460 table
->load_store_relax
= load_store_relax
;
12461 table
->target_optimize
= target_optimize
;
12462 table
->relax_status
= relax_status
;
12463 table
->relax_round
= relax_round
;
12464 table
->ex9_export_file
= ex9_export_file
;
12465 table
->ex9_import_file
= ex9_import_file
;
12466 table
->update_ex9_table
= update_ex9_table
;
12467 table
->ex9_limit
= ex9_limit
;
12468 table
->ex9_loop_aware
= ex9_loop_aware
;
12469 table
->ifc_loop_aware
= ifc_loop_aware
;
12472 /* These functions and data-structures are used for fp-as-gp
12475 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12476 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12477 the read-only section and read-write section. */
12478 #define FAG_WINDOW (508 - 32)
12480 /* An nds32_fag represent a gp-relative access.
12481 We find best fp-base by using a sliding window
12482 to find a base address which can cover most gp-access. */
12485 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12486 bfd_vma addr
; /* The address of this fag. */
12487 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12488 It is used for applying FP7U2_FLAG. */
12489 int count
; /* How many times this address is referred.
12490 There should be exactly `count' relocations
12492 int relas_capcity
; /* The buffer size of relas.
12493 We use an array instead of linked-list,
12494 and realloc is used to adjust buffer size. */
12498 nds32_fag_init (struct nds32_fag
*head
)
12500 memset (head
, 0, sizeof (struct nds32_fag
));
12504 nds32_fag_verify (struct nds32_fag
*head
)
12506 struct nds32_fag
*iter
;
12507 struct nds32_fag
*prev
;
12513 if (prev
&& prev
->addr
>= iter
->addr
)
12514 puts ("Bug in fp-as-gp insertion.");
12520 /* Insert a fag in ascending order.
12521 If a fag of the same address already exists,
12522 they are chained by relas array. */
12525 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12526 Elf_Internal_Rela
* rel
)
12528 struct nds32_fag
*iter
;
12529 struct nds32_fag
*new_fag
;
12530 const int INIT_RELAS_CAP
= 4;
12533 iter
->next
&& iter
->next
->addr
<= addr
;
12535 /* Find somewhere to insert. */ ;
12537 /* `iter' will be equal to `head' if the list is empty. */
12538 if (iter
!= head
&& iter
->addr
== addr
)
12540 /* The address exists in the list.
12541 Insert `rel' into relocation list, relas. */
12543 /* Check whether relas is big enough. */
12544 if (iter
->count
>= iter
->relas_capcity
)
12546 iter
->relas_capcity
*= 2;
12547 iter
->relas
= bfd_realloc
12548 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12550 iter
->relas
[iter
->count
++] = rel
;
12554 /* This is a new address. Create a fag node for it. */
12555 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12556 memset (new_fag
, 0, sizeof (*new_fag
));
12557 new_fag
->addr
= addr
;
12558 new_fag
->count
= 1;
12559 new_fag
->next
= iter
->next
;
12560 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12561 new_fag
->relas
= (Elf_Internal_Rela
**)
12562 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12563 new_fag
->relas
[0] = rel
;
12564 iter
->next
= new_fag
;
12566 nds32_fag_verify (head
);
12570 nds32_fag_free_list (struct nds32_fag
*head
)
12572 struct nds32_fag
*iter
;
12577 struct nds32_fag
*tmp
= iter
;
12585 /* Find the best fp-base address.
12586 The relocation associated with that address is returned,
12587 so we can track the symbol instead of a fixed address.
12589 When relaxation, the address of an datum may change,
12590 because a text section is shrinked, so the data section
12591 moves forward. If the aligments of text and data section
12592 are different, their distance may change too.
12593 Therefore, tracking a fixed address is not appriate. */
12596 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12598 struct nds32_fag
*base
; /* First fag in the window. */
12599 struct nds32_fag
*last
; /* First fag outside the window. */
12600 int accu
= 0; /* Usage accumulation. */
12601 struct nds32_fag
*best
; /* Best fag. */
12602 int baccu
= 0; /* Best accumulation. */
12604 /* Use first fag for initial, and find the last fag in the window.
12606 In each iteration, we could simply subtract previous fag
12607 and accumulate following fags which are inside the window,
12608 untill we each the end. */
12610 if (head
->next
== NULL
)
12616 /* Initialize base. */
12620 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12622 accu
+= last
->count
;
12626 /* Record the best base in each iteration. */
12629 accu
-= base
->count
;
12631 /* Account fags in window. */
12632 for (/* Nothing. */;
12633 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12635 accu
+= last
->count
;
12637 /* A better fp-base? */
12650 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12651 so we can convert it fo fp-relative access later.
12652 `best_fag' is the best fp-base. Only those inside the window
12653 of best_fag is applied the flag. */
12656 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12657 bfd
*abfd
, struct nds32_fag
*best_fag
,
12658 Elf_Internal_Rela
*internal_relocs
,
12659 Elf_Internal_Rela
*irelend
)
12661 struct nds32_fag
*ifag
;
12662 bfd_vma best_fpbase
, gp
;
12665 output_bfd
= abfd
->sections
->output_section
->owner
;
12666 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12667 best_fpbase
= best_fag
->addr
;
12669 if (best_fpbase
> gp
+ sdata_range
[1][1]
12670 || best_fpbase
< gp
- sdata_range
[1][0])
12673 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12674 so we know they can be converted to lwi37.fp. */
12675 for (ifag
= best_fag
;
12676 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12680 for (i
= 0; i
< ifag
->count
; i
++)
12682 Elf_Internal_Rela
*insn16_rel
;
12683 Elf_Internal_Rela
*fag_rel
;
12685 fag_rel
= ifag
->relas
[i
];
12687 /* Only if this is within the WINDOWS, FP7U2_FLAG
12690 insn16_rel
= find_relocs_at_address
12691 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12693 if (insn16_rel
!= irelend
)
12694 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12700 /* Reset INSN16 to clean fp as gp. */
12703 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12704 Elf_Internal_Rela
*internal_relocs
,
12705 Elf_Internal_Rela
*irelend
)
12707 struct nds32_fag
*ifag
;
12709 Elf_Internal_Rela
*insn16_rel
;
12710 Elf_Internal_Rela
*fag_rel
;
12712 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12714 for (i
= 0; i
< ifag
->count
; i
++)
12716 fag_rel
= ifag
->relas
[i
];
12718 /* Restore the INSN16 relocation. */
12719 insn16_rel
= find_relocs_at_address
12720 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12722 if (insn16_rel
!= irelend
)
12723 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12728 /* This is the main function of fp-as-gp optimization.
12729 It should be called by relax_section. */
12732 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12733 bfd
*abfd
, asection
*sec
,
12734 Elf_Internal_Rela
*internal_relocs
,
12735 Elf_Internal_Rela
*irelend
,
12736 Elf_Internal_Sym
*isymbuf
)
12738 Elf_Internal_Rela
*begin_rel
= NULL
;
12739 Elf_Internal_Rela
*irel
;
12740 struct nds32_fag fag_head
;
12741 Elf_Internal_Shdr
*symtab_hdr
;
12742 bfd_byte
*contents
;
12743 bfd_boolean ifc_inside
= FALSE
;
12745 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12747 /* Per-function fp-base selection.
12748 1. Create a list for all the gp-relative access.
12749 2. Base on those gp-relative address,
12750 find a fp-base which can cover most access.
12751 3. Use the fp-base for fp-as-gp relaxation.
12753 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12755 1. delete the `la $fp, _FP_BASE_' instruction and
12756 2. not convert lwi.gp to lwi37.fp.
12758 To delete the _FP_BASE_ instruction, we simply apply
12759 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12761 To suppress the conversion, we simply NOT to apply
12762 R_NDS32_INSN16_FP7U2_FLAG flag. */
12764 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12766 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12767 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12770 /* Check whether it is worth for fp-as-gp optimization,
12771 i.e., at least 3 gp-load.
12773 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12774 apply this optimization. */
12776 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12778 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12779 One we enter the begin of the region, we track all the LW/ST
12780 instructions, so when we leave the region, we try to find
12781 the best fp-base address for those LW/ST instructions. */
12783 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12784 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12786 /* Begin of the region. */
12788 (*_bfd_error_handler
) (_("%B: Nested OMIT_FP in %A."), abfd
, sec
);
12791 nds32_fag_init (&fag_head
);
12792 ifc_inside
= FALSE
;
12794 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12795 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12798 struct nds32_fag
*best_fag
, *tmp_fag
;
12801 /* End of the region.
12802 Check whether it is worth to do fp-as-gp. */
12804 if (begin_rel
== NULL
)
12806 (*_bfd_error_handler
) (_("%B: Unmatched OMIT_FP in %A."), abfd
, sec
);
12810 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12812 /* Clean FP7U2_FLAG because they may set ever. */
12813 tmp_fag
= fag_head
.next
;
12814 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12816 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12817 if (accu
< FAG_THRESHOLD
12818 || !nds32_fag_mark_relax (link_info
, abfd
, best_fag
,
12819 internal_relocs
, irelend
))
12821 /* Not worth to do fp-as-gp. */
12822 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12823 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12824 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12825 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12826 nds32_fag_free_list (&fag_head
);
12831 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12832 so we use it to record the distance to the reloction of best
12834 dist
= best_fag
->relas
[0] - begin_rel
;
12835 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12836 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12837 relocation. And get the base value when relocating. */
12838 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12839 begin_rel
->r_addend
|= dist
<< 16;
12841 nds32_fag_free_list (&fag_head
);
12845 if (begin_rel
== NULL
|| ifc_inside
)
12846 /* Skip if we are not in the region of fp-as-gp. */
12849 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12850 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12855 /* A gp-relative access is found. Insert it to the fag-list. */
12857 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12858 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12859 if (!N32_IS_RT3 (insn
))
12862 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12863 nds32_fag_insert (&fag_head
, addr
, irel
);
12865 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12869 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12870 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12872 /* Suppress fp as gp when encounter ifc. */
12880 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12883 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
12884 Elf_Internal_Rela
*internal_relocs
,
12885 Elf_Internal_Rela
*irelend
)
12887 Elf_Internal_Rela
*irel
;
12888 Elf_Internal_Shdr
*symtab_hdr
;
12889 bfd_byte
*contents
= NULL
;
12890 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12891 bfd_boolean result
= TRUE
;
12892 bfd_boolean unused_region
= FALSE
;
12895 NOTE: Disable fp-as-gp if we encounter ifcall relocations.
12896 * R_NDS32_17IFC_PCREL_RELA
12897 * R_NDS32_10IFCU_PCREL_RELA
12902 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12903 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
12905 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12907 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12908 we marked to in previous pass.
12909 DO NOT scan relocations again, since we've alreadly decided it
12910 and set the flag. */
12911 const char *syname
;
12915 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12916 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12917 unused_region
= TRUE
;
12918 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12919 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12920 unused_region
= FALSE
;
12922 /* We're not in the region. */
12923 if (!unused_region
)
12926 /* _FP_BASE_ must be a GLOBAL symbol. */
12927 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
12928 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
12931 /* The symbol name must be _FP_BASE_. */
12932 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
12933 if (strcmp (syname
, FP_BASE_NAME
) != 0)
12936 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
12938 /* addi.gp $fp, -256 */
12939 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12940 if (insn
!= INSN_ADDIGP_TO_FP
)
12943 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
12945 /* addi $fp, $gp, -256 */
12946 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12947 if (insn
!= INSN_ADDI_GP_TO_FP
)
12950 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
12952 /* movi $fp, FP_BASE */
12953 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12954 if (insn
!= INSN_MOVI_TO_FP
)
12960 /* We got here because a FP_BASE instruction is found. */
12961 if (!insert_nds32_elf_blank_recalc_total
12962 (&relax_blank_list
, irel
->r_offset
, 4))
12967 if (relax_blank_list
)
12969 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12970 relax_blank_list
= NULL
;
12979 /* This is a version of bfd_generic_get_relocated_section_contents.
12980 We need this variety because relaxation will modify the dwarf
12981 infomation. When there is undefined symbol reference error mesage,
12982 linker need to dump line number where the symbol be used. However
12983 the address is be relaxed, it can not get the original dwarf contents.
12984 The variety only modify function call for reading in the section. */
12987 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
12988 struct bfd_link_info
*link_info
,
12989 struct bfd_link_order
*link_order
,
12991 bfd_boolean relocatable
,
12994 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
12995 asection
*input_section
= link_order
->u
.indirect
.section
;
12997 arelent
**reloc_vector
;
13000 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
13001 if (reloc_size
< 0)
13004 /* Read in the section. */
13005 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13008 if (reloc_size
== 0)
13011 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13012 if (reloc_vector
== NULL
)
13015 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13016 reloc_vector
, symbols
);
13017 if (reloc_count
< 0)
13020 if (reloc_count
> 0)
13023 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13025 char *error_message
= NULL
;
13027 bfd_reloc_status_type r
;
13029 symbol
= *(*parent
)->sym_ptr_ptr
;
13030 if (symbol
->section
&& discarded_section (symbol
->section
))
13033 static reloc_howto_type none_howto
13034 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13035 "unused", FALSE
, 0, 0, FALSE
);
13037 p
= data
+ (*parent
)->address
* bfd_octets_per_byte (input_bfd
);
13038 _bfd_clear_contents ((*parent
)->howto
, input_bfd
, input_section
,
13040 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13041 (*parent
)->addend
= 0;
13042 (*parent
)->howto
= &none_howto
;
13046 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13048 relocatable
? abfd
: NULL
,
13053 asection
*os
= input_section
->output_section
;
13055 /* A partial link, so keep the relocs. */
13056 os
->orelocation
[os
->reloc_count
] = *parent
;
13060 if (r
!= bfd_reloc_ok
)
13064 case bfd_reloc_undefined
:
13065 if (!((*link_info
->callbacks
->undefined_symbol
)
13066 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13067 input_bfd
, input_section
, (*parent
)->address
, TRUE
)))
13070 case bfd_reloc_dangerous
:
13071 BFD_ASSERT (error_message
!= NULL
);
13072 if (!((*link_info
->callbacks
->reloc_dangerous
)
13073 (link_info
, error_message
, input_bfd
, input_section
,
13074 (*parent
)->address
)))
13077 case bfd_reloc_overflow
:
13078 if (!((*link_info
->callbacks
->reloc_overflow
)
13080 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13081 (*parent
)->howto
->name
, (*parent
)->addend
,
13082 input_bfd
, input_section
, (*parent
)->address
)))
13085 case bfd_reloc_outofrange
:
13087 This error can result when processing some partially
13088 complete binaries. Do not abort, but issue an error
13089 message instead. */
13090 link_info
->callbacks
->einfo
13091 (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
13092 abfd
, input_section
, * parent
);
13103 free (reloc_vector
);
13107 free (reloc_vector
);
13111 /* Link-time IFC relaxation.
13112 In this optimization, we chains jump instructions
13113 of the same destination with ifcall. */
13116 /* List to save jal and j relocation. */
13117 struct elf_nds32_ifc_symbol_entry
13120 struct elf_link_hash_entry
*h
;
13121 struct elf_nds32_ifc_irel_list
*irel_head
;
13122 unsigned long insn
;
13124 int enable
; /* Apply ifc. */
13125 int ex9_enable
; /* Apply ifc after ex9. */
13126 struct elf_nds32_ifc_symbol_entry
*next
;
13129 struct elf_nds32_ifc_irel_list
13131 Elf_Internal_Rela
*irel
;
13134 /* If this is set, then it is the last instruction for
13135 ifc-chain, so it must be keep for the actual branching. */
13137 struct elf_nds32_ifc_irel_list
*next
;
13140 static struct elf_nds32_ifc_symbol_entry
*ifc_symbol_head
= NULL
;
13142 /* Insert symbol of jal and j for ifc. */
13145 nds32_elf_ifc_insert_symbol (asection
*sec
,
13146 struct elf_link_hash_entry
*h
,
13147 Elf_Internal_Rela
*irel
,
13148 unsigned long insn
)
13150 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13152 /* Check there is target of existing entry the same as the new one. */
13153 while (ptr
!= NULL
)
13155 if (((h
== NULL
&& ptr
->sec
== sec
13156 && ELF32_R_SYM (ptr
->irel_head
->irel
->r_info
) == ELF32_R_SYM (irel
->r_info
)
13157 && ptr
->irel_head
->irel
->r_addend
== irel
->r_addend
)
13160 && ptr
->insn
== insn
)
13162 /* The same target exist, so insert into list. */
13163 struct elf_nds32_ifc_irel_list
*irel_list
= ptr
->irel_head
;
13165 while (irel_list
->next
!= NULL
)
13166 irel_list
= irel_list
->next
;
13167 irel_list
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13168 irel_list
= irel_list
->next
;
13169 irel_list
->irel
= irel
;
13170 irel_list
->keep
= 1;
13173 irel_list
->sec
= NULL
;
13175 irel_list
->sec
= sec
;
13176 irel_list
->next
= NULL
;
13179 if (ptr
->next
== NULL
)
13184 /* There is no same target entry, so build a new one. */
13185 if (ifc_symbol_head
== NULL
)
13187 ifc_symbol_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13188 ptr
= ifc_symbol_head
;
13192 ptr
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13197 ptr
->irel_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13198 ptr
->irel_head
->irel
= irel
;
13200 ptr
->irel_head
->keep
= 1;
13204 /* Local symbols. */
13206 ptr
->irel_head
->sec
= NULL
;
13210 /* Global symbol. */
13212 ptr
->irel_head
->sec
= sec
;
13215 ptr
->irel_head
->next
= NULL
;
13218 ptr
->ex9_enable
= 0;
13222 /* Gather all jal and j instructions. */
13225 nds32_elf_ifc_calc (struct bfd_link_info
*info
,
13226 bfd
*abfd
, asection
*sec
)
13228 Elf_Internal_Rela
*internal_relocs
;
13229 Elf_Internal_Rela
*irelend
;
13230 Elf_Internal_Rela
*irel
;
13231 Elf_Internal_Shdr
*symtab_hdr
;
13232 bfd_byte
*contents
= NULL
;
13233 uint32_t insn
, insn_with_reg
;
13234 unsigned long r_symndx
;
13235 struct elf_link_hash_entry
*h
;
13236 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
13237 struct elf_nds32_link_hash_table
*table
;
13238 bfd_boolean ifc_loop_aware
;
13240 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
13241 TRUE
/* keep_memory */);
13242 irelend
= internal_relocs
+ sec
->reloc_count
;
13243 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
13245 /* Check if the object enable ifc. */
13246 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
13247 R_NDS32_RELAX_ENTRY
);
13251 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
13252 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
13253 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_IFC_FLAG
)))
13256 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
13259 table
= nds32_elf_hash_table (info
);
13260 ifc_loop_aware
= table
->ifc_loop_aware
;
13261 while (irel
!= NULL
&& irel
< irelend
)
13263 /* Traverse all relocation and gather all of them to build the list. */
13265 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
13267 if (ifc_loop_aware
== 1
13268 && (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0)
13270 /* Check the region if loop or not. If it is true and
13271 ifc-loop-aware is true, ignore the region till region end. */
13272 while (irel
!= NULL
13274 && (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
13275 || (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0))
13280 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
13282 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13283 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
13284 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13285 if (r_symndx
< symtab_hdr
->sh_info
)
13287 /* Local symbol. */
13288 nds32_elf_ifc_insert_symbol (sec
, NULL
, irel
, insn_with_reg
);
13292 /* External symbol. */
13293 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13294 nds32_elf_ifc_insert_symbol (sec
, h
, irel
, insn_with_reg
);
13302 /* Determine whether j and jal should be substituted. */
13305 nds32_elf_ifc_filter (struct bfd_link_info
*info
)
13307 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13308 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13309 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13310 struct elf_nds32_link_hash_table
*table
;
13311 int target_optimize
;
13314 table
= nds32_elf_hash_table (info
);
13315 target_optimize
= table
->target_optimize
;
13318 irel_ptr
= ptr
->irel_head
;
13319 if (ptr
->h
== NULL
)
13321 /* Local symbol. */
13322 irel_keeper
= irel_ptr
;
13323 while (irel_ptr
&& irel_ptr
->next
)
13325 /* Check there is jump target can be used. */
13326 if ((irel_ptr
->next
->irel
->r_offset
13327 - irel_keeper
->irel
->r_offset
) > 1022)
13328 irel_keeper
= irel_ptr
->next
;
13332 irel_ptr
->keep
= 0;
13334 irel_ptr
= irel_ptr
->next
;
13339 /* Global symbol. */
13340 /* We have to get the absolute address and decide
13341 whether to keep it or not. */
13344 address
= (irel_ptr
->irel
->r_offset
13345 + irel_ptr
->sec
->output_section
->vma
13346 + irel_ptr
->sec
->output_offset
);
13347 irel_ptr
->addr
= address
;
13348 irel_ptr
= irel_ptr
->next
;
13351 irel_ptr
= ptr
->irel_head
;
13354 /* Sort by address. */
13355 struct elf_nds32_ifc_irel_list
*irel_dest
= irel_ptr
;
13356 struct elf_nds32_ifc_irel_list
*irel_temp
= irel_ptr
;
13357 struct elf_nds32_ifc_irel_list
*irel_ptr_prev
= NULL
;
13358 struct elf_nds32_ifc_irel_list
*irel_dest_prev
= NULL
;
13360 /* Get the smallest one. */
13361 while (irel_temp
->next
)
13363 if (irel_temp
->next
->addr
< irel_dest
->addr
)
13365 irel_dest_prev
= irel_temp
;
13366 irel_dest
= irel_temp
->next
;
13368 irel_temp
= irel_temp
->next
;
13371 if (irel_dest
!= irel_ptr
)
13374 irel_ptr_prev
->next
= irel_dest
;
13375 if (irel_dest_prev
)
13376 irel_dest_prev
->next
= irel_ptr
;
13377 irel_temp
= irel_ptr
->next
;
13378 irel_ptr
->next
= irel_dest
->next
;
13379 irel_dest
->next
= irel_temp
;
13381 irel_ptr_prev
= irel_ptr
;
13382 irel_ptr
= irel_ptr
->next
;
13385 irel_ptr
= ptr
->irel_head
;
13386 irel_keeper
= irel_ptr
;
13387 while (irel_ptr
&& irel_ptr
->next
)
13389 if ((irel_ptr
->next
->addr
- irel_keeper
->addr
) > 1022)
13390 irel_keeper
= irel_ptr
->next
;
13394 irel_ptr
->keep
= 0;
13396 irel_ptr
= irel_ptr
->next
;
13400 /* Ex9 enable. Reserve it for ex9. */
13401 if ((target_optimize
& NDS32_RELAX_EX9_ON
)
13402 && ptr
->irel_head
!= irel_keeper
)
13408 /* Determine whether j and jal should be substituted after ex9 done. */
13411 nds32_elf_ifc_filter_after_ex9 (void)
13413 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13414 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13418 if (ptr
->enable
== 0)
13420 /* Check whether ifc is applied or not. */
13421 irel_ptr
= ptr
->irel_head
;
13422 ptr
->ex9_enable
= 1;
13425 if (ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_TRAN
)
13428 ptr
->ex9_enable
= 0;
13431 irel_ptr
= irel_ptr
->next
;
13438 /* Wrapper to do ifc relaxation. */
13441 nds32_elf_ifc_finish (struct bfd_link_info
*info
)
13444 struct elf_nds32_link_hash_table
*table
;
13446 table
= nds32_elf_hash_table (info
);
13447 relax_status
= table
->relax_status
;
13449 if (!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
))
13450 nds32_elf_ifc_filter (info
);
13452 nds32_elf_ifc_filter_after_ex9 ();
13454 if (!nds32_elf_ifc_replace (info
))
13458 table
->relax_status
|= NDS32_RELAX_JUMP_IFC_DONE
;
13462 /* Traverse the result of ifc filter and replace it with ifcall9. */
13465 nds32_elf_ifc_replace (struct bfd_link_info
*info
)
13467 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13468 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13469 nds32_elf_blank_t
*relax_blank_list
= NULL
;
13470 bfd_byte
*contents
= NULL
;
13471 Elf_Internal_Rela
*internal_relocs
;
13472 Elf_Internal_Rela
*irel
;
13473 Elf_Internal_Rela
*irelend
;
13474 unsigned short insn16
= INSN_IFCALL9
;
13475 struct elf_nds32_link_hash_table
*table
;
13478 table
= nds32_elf_hash_table (info
);
13479 relax_status
= table
->relax_status
;
13483 /* Traverse the ifc gather list, and replace the
13484 filter entries by ifcall9. */
13485 if ((!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
) && ptr
->enable
== 1)
13486 || ((relax_status
& NDS32_RELAX_JUMP_IFC_DONE
)
13487 && ptr
->ex9_enable
== 1))
13489 irel_ptr
= ptr
->irel_head
;
13490 if (ptr
->h
== NULL
)
13492 /* Local symbol. */
13493 internal_relocs
= _bfd_elf_link_read_relocs
13494 (ptr
->sec
->owner
, ptr
->sec
, NULL
, NULL
, TRUE
/* keep_memory */);
13495 irelend
= internal_relocs
+ ptr
->sec
->reloc_count
;
13497 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13503 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13505 /* The one can be replaced. We have to check whether
13506 there is any alignment point in the region. */
13507 irel
= irel_ptr
->irel
;
13508 while (((irel_ptr
->next
->keep
== 0
13509 && irel
< irel_ptr
->next
->irel
)
13510 || (irel_ptr
->next
->keep
== 1 && irel
< irelend
))
13511 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13512 && (irel
->r_addend
& 0x1f) == 2))
13514 if (irel
>= irelend
13515 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13516 && (irel
->r_addend
& 0x1f) == 2
13517 && ((irel
->r_offset
- get_nds32_elf_blank_total
13518 (&relax_blank_list
, irel
->r_offset
, 1))
13521 /* Replace by ifcall9. */
13522 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13523 if (!insert_nds32_elf_blank_recalc_total
13524 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13526 irel_ptr
->irel
->r_info
=
13527 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13528 R_NDS32_10IFCU_PCREL_RELA
);
13531 irel_ptr
= irel_ptr
->next
;
13534 /* Delete the redundant code. */
13535 if (relax_blank_list
)
13537 nds32_elf_relax_delete_blanks (ptr
->sec
->owner
, ptr
->sec
,
13539 relax_blank_list
= NULL
;
13544 /* Global symbol. */
13547 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13549 /* The one can be replaced, and we have to check
13550 whether there is any alignment point in the region. */
13551 internal_relocs
= _bfd_elf_link_read_relocs
13552 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, NULL
, NULL
,
13553 TRUE
/* keep_memory */);
13554 irelend
= internal_relocs
+ irel_ptr
->sec
->reloc_count
;
13555 if (!nds32_get_section_contents (irel_ptr
->sec
->owner
,
13556 irel_ptr
->sec
, &contents
,
13560 irel
= irel_ptr
->irel
;
13561 while (((irel_ptr
->sec
== irel_ptr
->next
->sec
13562 && irel_ptr
->next
->keep
== 0
13563 && irel
< irel_ptr
->next
->irel
)
13564 || ((irel_ptr
->sec
!= irel_ptr
->next
->sec
13565 || irel_ptr
->next
->keep
== 1)
13566 && irel
< irelend
))
13567 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13568 && (irel
->r_addend
& 0x1f) == 2))
13570 if (irel
>= irelend
13571 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13572 && (irel
->r_addend
& 0x1f) == 2
13573 && ((irel
->r_offset
13574 - get_nds32_elf_blank_total (&relax_blank_list
,
13575 irel
->r_offset
, 1)) & 0x02) == 0))
13577 /* Replace by ifcall9. */
13578 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13579 if (!insert_nds32_elf_blank_recalc_total
13580 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13583 /* Delete the redundant code, and clear the relocation. */
13584 nds32_elf_relax_delete_blanks (irel_ptr
->sec
->owner
,
13587 irel_ptr
->irel
->r_info
=
13588 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13589 R_NDS32_10IFCU_PCREL_RELA
);
13590 relax_blank_list
= NULL
;
13594 irel_ptr
= irel_ptr
->next
;
13604 /* Relocate ifcall. */
13607 nds32_elf_ifc_reloc (void)
13609 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13610 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13611 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13612 bfd_vma relocation
, address
;
13613 unsigned short insn16
;
13614 bfd_byte
*contents
= NULL
;
13615 static bfd_boolean done
= FALSE
;
13624 /* Check the entry is enable ifcall. */
13625 if (ptr
->enable
== 1 || ptr
->ex9_enable
== 1)
13627 /* Get the reserve jump. */
13628 irel_ptr
= ptr
->irel_head
;
13631 if (irel_ptr
->keep
== 1)
13633 irel_keeper
= irel_ptr
;
13636 irel_ptr
= irel_ptr
->next
;
13639 irel_ptr
= ptr
->irel_head
;
13640 if (ptr
->h
== NULL
)
13642 /* Local symbol. */
13643 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13649 if (irel_ptr
->keep
== 0
13650 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13652 relocation
= irel_keeper
->irel
->r_offset
;
13653 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13654 while (irel_keeper
&& relocation
> 1022)
13656 irel_keeper
= irel_keeper
->next
;
13657 if (irel_keeper
&& irel_keeper
->keep
== 1)
13659 relocation
= irel_keeper
->irel
->r_offset
;
13660 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13663 if (relocation
> 1022)
13665 /* Double check. */
13666 irel_keeper
= ptr
->irel_head
;
13667 while (irel_keeper
)
13669 if (irel_keeper
->keep
== 1)
13671 relocation
= irel_keeper
->irel
->r_offset
;
13672 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13674 if (relocation
<= 1022)
13676 irel_keeper
= irel_keeper
->next
;
13681 irel_ptr
->irel
->r_info
=
13682 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13684 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13685 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13687 irel_ptr
= irel_ptr
->next
;
13692 /* Global symbol. */
13695 if (irel_ptr
->keep
== 0
13696 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13698 /* Get the distance between ifcall and jump. */
13699 relocation
= (irel_keeper
->irel
->r_offset
13700 + irel_keeper
->sec
->output_section
->vma
13701 + irel_keeper
->sec
->output_offset
);
13702 address
= (irel_ptr
->irel
->r_offset
13703 + irel_ptr
->sec
->output_section
->vma
13704 + irel_ptr
->sec
->output_offset
);
13705 relocation
= relocation
- address
;
13707 /* The distance is over ragne, find callee again. */
13708 while (irel_keeper
&& relocation
> 1022)
13710 irel_keeper
= irel_keeper
->next
;
13711 if (irel_keeper
&& irel_keeper
->keep
==1)
13713 relocation
= (irel_keeper
->irel
->r_offset
13714 + irel_keeper
->sec
->output_section
->vma
13715 + irel_keeper
->sec
->output_offset
);
13716 relocation
= relocation
- address
;
13720 if (relocation
> 1022)
13722 /* Double check. */
13723 irel_keeper
= ptr
->irel_head
;
13724 while (irel_keeper
)
13726 if (irel_keeper
->keep
== 1)
13729 relocation
= (irel_keeper
->irel
->r_offset
13730 + irel_keeper
->sec
->output_section
->vma
13731 + irel_keeper
->sec
->output_offset
);
13732 relocation
= relocation
- address
;
13734 if (relocation
<= 1022)
13736 irel_keeper
= irel_keeper
->next
;
13741 if (!nds32_get_section_contents
13742 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, &contents
, TRUE
))
13744 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13745 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13746 irel_ptr
->irel
->r_info
=
13747 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13750 irel_ptr
=irel_ptr
->next
;
13760 /* End of IFC relaxation. */
13762 /* EX9 Instruction Table Relaxation. */
13764 /* Global hash list. */
13765 struct elf_link_hash_entry_list
13767 struct elf_link_hash_entry
*h
;
13768 struct elf_link_hash_entry_list
*next
;
13771 /* Save different destination but same insn. */
13772 struct elf_link_hash_entry_mul_list
13774 /* Global symbol times. */
13776 /* Save relocation for each global symbol but useful?? */
13777 Elf_Internal_Rela
*irel
;
13778 /* For sethi, two sethi may have the same high-part but different low-parts. */
13779 Elf_Internal_Rela rel_backup
;
13780 struct elf_link_hash_entry_list
*h_list
;
13781 struct elf_link_hash_entry_mul_list
*next
;
13784 /* Instruction hash table. */
13785 struct elf_nds32_code_hash_entry
13787 struct bfd_hash_entry root
;
13789 /* For insn that can use relocation or constant ex: sethi. */
13792 struct elf_link_hash_entry_mul_list
*m_list
;
13793 /* Using r_addend. */
13794 Elf_Internal_Rela
*irel
;
13795 /* Using r_info. */
13796 Elf_Internal_Rela rel_backup
;
13799 /* Instruction count list. */
13800 struct elf_nds32_insn_times_entry
13802 const char *string
;
13806 struct elf_link_hash_entry_mul_list
*m_list
;
13807 Elf_Internal_Rela
*irel
;
13808 Elf_Internal_Rela rel_backup
;
13809 struct elf_nds32_insn_times_entry
*next
;
13812 /* J and JAL symbol list. */
13813 struct elf_nds32_symbol_entry
13816 unsigned long insn
;
13817 struct elf_nds32_symbol_entry
*next
;
13820 /* Relocation list. */
13821 struct elf_nds32_irel_entry
13823 Elf_Internal_Rela
*irel
;
13824 struct elf_nds32_irel_entry
*next
;
13827 /* ex9.it insn need to be fixed. */
13828 struct elf_nds32_ex9_refix
13830 Elf_Internal_Rela
*irel
;
13832 struct elf_link_hash_entry
*h
;
13834 struct elf_nds32_ex9_refix
*next
;
13837 static struct bfd_hash_table ex9_code_table
;
13838 static struct elf_nds32_insn_times_entry
*ex9_insn_head
= NULL
;
13839 static struct elf_nds32_ex9_refix
*ex9_refix_head
= NULL
;
13841 /* EX9 hash function. */
13843 static struct bfd_hash_entry
*
13844 nds32_elf_code_hash_newfunc (struct bfd_hash_entry
*entry
,
13845 struct bfd_hash_table
*table
,
13846 const char *string
)
13848 struct elf_nds32_code_hash_entry
*ret
;
13850 /* Allocate the structure if it has not already been allocated by a
13854 entry
= (struct bfd_hash_entry
*)
13855 bfd_hash_allocate (table
, sizeof (*ret
));
13860 /* Call the allocation method of the superclass. */
13861 entry
= bfd_hash_newfunc (entry
, table
, string
);
13865 ret
= (struct elf_nds32_code_hash_entry
*) entry
;
13867 ret
->const_insn
= 0;
13868 ret
->m_list
= NULL
;
13874 /* Insert ex9 entry
13875 this insert must be stable sorted by times. */
13878 nds32_elf_ex9_insert_entry (struct elf_nds32_insn_times_entry
*ptr
)
13880 struct elf_nds32_insn_times_entry
*temp
;
13881 struct elf_nds32_insn_times_entry
*temp2
;
13883 if (ex9_insn_head
== NULL
)
13885 ex9_insn_head
= ptr
;
13890 temp
= ex9_insn_head
;
13891 temp2
= ex9_insn_head
;
13892 while (temp
->next
&&
13893 (temp
->next
->times
>= ptr
->times
13894 || temp
->times
== -1))
13896 if (temp
->times
== -1)
13900 if (ptr
->times
> temp
->times
&& temp
->times
!= -1)
13903 if (temp2
->times
== -1)
13906 ex9_insn_head
= ptr
;
13908 else if (temp
->next
== NULL
)
13915 ptr
->next
= temp
->next
;
13921 /* Examine each insn times in hash table.
13922 Handle multi-link hash entry.
13924 TODO: This function doesn't assign so much info since it is fake. */
13927 nds32_elf_examine_insn_times (struct elf_nds32_code_hash_entry
*h
)
13929 struct elf_nds32_insn_times_entry
*ptr
;
13932 if (h
->m_list
== NULL
)
13934 /* Local symbol insn or insn without relocation. */
13938 ptr
= (struct elf_nds32_insn_times_entry
*)
13939 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13940 ptr
->times
= h
->times
;
13941 ptr
->string
= h
->root
.string
;
13942 ptr
->m_list
= NULL
;
13944 ptr
->irel
= h
->irel
;
13945 ptr
->rel_backup
= h
->rel_backup
;
13946 nds32_elf_ex9_insert_entry (ptr
);
13950 /* Global symbol insn. */
13951 /* Only sethi insn has multiple m_list. */
13952 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
13957 times
+= m_list
->times
;
13958 m_list
= m_list
->next
;
13962 m_list
= h
->m_list
;
13963 ptr
= (struct elf_nds32_insn_times_entry
*)
13964 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13965 ptr
->times
= times
; /* Use the total times. */
13966 ptr
->string
= h
->root
.string
;
13967 ptr
->m_list
= m_list
;
13969 ptr
->irel
= m_list
->irel
;
13970 ptr
->rel_backup
= m_list
->rel_backup
;
13971 nds32_elf_ex9_insert_entry (ptr
);
13973 if (h
->const_insn
== 1)
13975 /* sethi with constant value. */
13979 ptr
= (struct elf_nds32_insn_times_entry
*)
13980 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13981 ptr
->times
= h
->times
;
13982 ptr
->string
= h
->root
.string
;
13983 ptr
->m_list
= NULL
;
13986 ptr
->rel_backup
= h
->rel_backup
;
13987 nds32_elf_ex9_insert_entry (ptr
);
13993 /* Count each insn times in hash table.
13994 Handle multi-link hash entry. */
13997 nds32_elf_count_insn_times (struct elf_nds32_code_hash_entry
*h
)
13999 int reservation
, times
;
14000 unsigned long relocation
, min_relocation
;
14001 struct elf_nds32_insn_times_entry
*ptr
;
14003 if (h
->m_list
== NULL
)
14005 /* Local symbol insn or insn without relocation. */
14008 ptr
= (struct elf_nds32_insn_times_entry
*)
14009 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14010 ptr
->times
= h
->times
;
14011 ptr
->string
= h
->root
.string
;
14012 ptr
->m_list
= NULL
;
14014 ptr
->irel
= h
->irel
;
14015 ptr
->rel_backup
= h
->rel_backup
;
14016 nds32_elf_ex9_insert_entry (ptr
);
14020 /* Global symbol insn. */
14021 /* Only sethi insn has multiple m_list. */
14022 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
14024 if (ELF32_R_TYPE (m_list
->rel_backup
.r_info
) == R_NDS32_HI20_RELA
14025 && m_list
->next
!= NULL
)
14027 /* Sethi insn has different symbol or addend but has same hi20. */
14031 min_relocation
= 0xffffffff;
14034 /* Get the minimum sethi address
14035 and calculate how many entry the sethi-list have to use. */
14036 if ((m_list
->h_list
->h
->root
.type
== bfd_link_hash_defined
14037 || m_list
->h_list
->h
->root
.type
== bfd_link_hash_defweak
)
14038 && (m_list
->h_list
->h
->root
.u
.def
.section
!= NULL
14039 && m_list
->h_list
->h
->root
.u
.def
.section
->output_section
!= NULL
))
14041 relocation
= (m_list
->h_list
->h
->root
.u
.def
.value
+
14042 m_list
->h_list
->h
->root
.u
.def
.section
->output_section
->vma
+
14043 m_list
->h_list
->h
->root
.u
.def
.section
->output_offset
);
14044 relocation
+= m_list
->irel
->r_addend
;
14048 if (relocation
< min_relocation
)
14049 min_relocation
= relocation
;
14050 times
+= m_list
->times
;
14051 m_list
= m_list
->next
;
14053 if (min_relocation
< ex9_relax_size
)
14054 reservation
= (min_relocation
>> 12) + 1;
14056 reservation
= (min_relocation
>> 12)
14057 - ((min_relocation
- ex9_relax_size
) >> 12) + 1;
14058 if (reservation
< (times
/ 3))
14060 /* Efficient enough to use ex9. */
14063 for (i
= reservation
; i
> 0; i
--)
14065 /* Allocate number of reservation ex9 entry. */
14066 ptr
= (struct elf_nds32_insn_times_entry
*)
14067 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14068 ptr
->times
= h
->m_list
->times
/ reservation
;
14069 ptr
->string
= h
->root
.string
;
14070 ptr
->m_list
= h
->m_list
;
14072 ptr
->irel
= h
->m_list
->irel
;
14073 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14074 nds32_elf_ex9_insert_entry (ptr
);
14080 /* Normal global symbol that means no different address symbol
14081 using same ex9 entry. */
14082 if (m_list
->times
>= 3)
14084 ptr
= (struct elf_nds32_insn_times_entry
*)
14085 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14086 ptr
->times
= m_list
->times
;
14087 ptr
->string
= h
->root
.string
;
14088 ptr
->m_list
= h
->m_list
;
14090 ptr
->irel
= h
->m_list
->irel
;
14091 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14092 nds32_elf_ex9_insert_entry (ptr
);
14096 if (h
->const_insn
== 1)
14098 /* sethi with constant value. */
14102 ptr
= (struct elf_nds32_insn_times_entry
*)
14103 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14104 ptr
->times
= h
->times
;
14105 ptr
->string
= h
->root
.string
;
14106 ptr
->m_list
= NULL
;
14109 ptr
->rel_backup
= h
->rel_backup
;
14110 nds32_elf_ex9_insert_entry (ptr
);
14117 /* Hash table traverse function. */
14120 nds32_elf_code_hash_traverse (int (*func
) (struct elf_nds32_code_hash_entry
*))
14124 ex9_code_table
.frozen
= 1;
14125 for (i
= 0; i
< ex9_code_table
.size
; i
++)
14127 struct bfd_hash_entry
*p
;
14129 for (p
= ex9_code_table
.table
[i
]; p
!= NULL
; p
= p
->next
)
14130 if (!func ((struct elf_nds32_code_hash_entry
*) p
))
14134 ex9_code_table
.frozen
= 0;
14138 /* Give order number to insn list. */
14141 nds32_elf_order_insn_times (struct bfd_link_info
*info
)
14143 struct elf_nds32_insn_times_entry
*ex9_insn
;
14144 struct elf_nds32_insn_times_entry
*temp
= NULL
;
14145 struct elf_nds32_link_hash_table
*table
;
14149 if (ex9_insn_head
== NULL
)
14152 /* The max number of entries is 512. */
14153 ex9_insn
= ex9_insn_head
;
14154 table
= nds32_elf_hash_table (info
);
14155 ex9_limit
= table
->ex9_limit
;
14157 ex9_insn
= ex9_insn_head
;
14159 while (ex9_insn
!= NULL
&& number
< ex9_limit
)
14161 ex9_insn
->order
= number
;
14164 ex9_insn
= ex9_insn
->next
;
14167 if (ex9_insn
&& temp
)
14170 while (ex9_insn
!= NULL
)
14172 /* Free useless entry. */
14174 ex9_insn
= ex9_insn
->next
;
14179 /* Build .ex9.itable section. */
14182 nds32_elf_ex9_build_itable (struct bfd_link_info
*link_info
)
14184 asection
*table_sec
;
14185 struct elf_nds32_insn_times_entry
*ptr
;
14188 bfd_byte
*contents
= NULL
;
14190 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
14191 it_abfd
= it_abfd
->link
.next
)
14193 /* Find the section .ex9.itable, and put all entries into it. */
14194 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
14195 if (table_sec
!= NULL
)
14197 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
14200 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14203 table_sec
->size
= number
* 4;
14208 elf_elfheader (link_info
->output_bfd
)->e_flags
|= E_NDS32_HAS_EX9_INST
;
14210 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14214 val
= strtol (ptr
->string
, NULL
, 16);
14215 bfd_putb32 ((bfd_vma
) val
, (char *) contents
+ (number
* 4));
14223 /* Get insn with regs according to relocation type. */
14226 nds32_elf_get_insn_with_reg (Elf_Internal_Rela
*irel
,
14227 uint32_t insn
, uint32_t *insn_with_reg
)
14229 reloc_howto_type
*howto
= NULL
;
14232 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14233 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14234 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14236 *insn_with_reg
= insn
;
14240 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14241 *insn_with_reg
= insn
& (0xffffffff ^ howto
->dst_mask
);
14244 /* Mask number of address bits according to relocation. */
14246 static unsigned long
14247 nds32_elf_irel_mask (Elf_Internal_Rela
*irel
)
14249 reloc_howto_type
*howto
= NULL
;
14252 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14253 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14254 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14257 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14258 return howto
->dst_mask
;
14262 nds32_elf_insert_irel_entry (struct elf_nds32_irel_entry
**irel_list
,
14263 struct elf_nds32_irel_entry
*irel_ptr
)
14265 if (*irel_list
== NULL
)
14267 *irel_list
= irel_ptr
;
14268 irel_ptr
->next
= NULL
;
14272 irel_ptr
->next
= *irel_list
;
14273 *irel_list
= irel_ptr
;
14278 nds32_elf_ex9_insert_fix (asection
* sec
, Elf_Internal_Rela
* irel
,
14279 struct elf_link_hash_entry
*h
, int order
)
14281 struct elf_nds32_ex9_refix
*ptr
;
14283 ptr
= bfd_malloc (sizeof (struct elf_nds32_ex9_refix
));
14287 ptr
->order
= order
;
14290 if (ex9_refix_head
== NULL
)
14291 ex9_refix_head
= ptr
;
14294 struct elf_nds32_ex9_refix
*temp
= ex9_refix_head
;
14296 while (temp
->next
!= NULL
)
14305 CLEAN_PRE
= 1 << 1,
14309 /* Check relocation type if supporting for ex9. */
14312 nds32_elf_ex9_relocation_check (struct bfd_link_info
*info
,
14313 Elf_Internal_Rela
**irel
,
14314 Elf_Internal_Rela
*irelend
,
14315 nds32_elf_blank_t
*relax_blank_list
,
14316 asection
*sec
,bfd_vma
*off
,
14317 bfd_byte
*contents
)
14319 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
14320 bfd_boolean nested_ex9
, nested_loop
;
14321 bfd_boolean ex9_loop_aware
;
14322 /* We use the highest 1 byte of result to record
14323 how many bytes location counter has to move. */
14325 Elf_Internal_Rela
*irel_save
= NULL
;
14326 struct elf_nds32_link_hash_table
*table
;
14328 table
= nds32_elf_hash_table (info
);
14329 ex9_loop_aware
= table
->ex9_loop_aware
;
14331 while ((*irel
) != NULL
&& (*irel
) < irelend
&& *off
== (*irel
)->r_offset
)
14333 switch (ELF32_R_TYPE ((*irel
)->r_info
))
14335 case R_NDS32_RELAX_REGION_BEGIN
:
14336 /* Ignore code block. */
14337 nested_ex9
= FALSE
;
14338 nested_loop
= FALSE
;
14339 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
)
14341 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
)))
14343 /* Check the region if loop or not. If it is true and
14344 ex9-loop-aware is true, ignore the region till region end. */
14345 /* To save the status for in .no_relax ex9 region and
14346 loop region to conform the block can do ex9 relaxation. */
14347 nested_ex9
= ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
);
14348 nested_loop
= (ex9_loop_aware
14349 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
));
14350 while ((*irel
) && (*irel
) < irelend
&& (nested_ex9
|| nested_loop
))
14353 if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
14355 /* There may be nested region. */
14356 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14358 else if (ex9_loop_aware
14359 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14360 nested_loop
= TRUE
;
14362 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_END
)
14364 /* The end of region. */
14365 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14366 nested_ex9
= FALSE
;
14367 else if (ex9_loop_aware
14368 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14369 nested_loop
= FALSE
;
14371 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_LABEL
14372 && ((*irel
)->r_addend
& 0x1f) == 2)
14374 /* Alignment exist in the region. */
14375 result
|= CLEAN_PRE
;
14376 if (((*irel
)->r_offset
-
14377 get_nds32_elf_blank_total (&relax_blank_list
,
14378 (*irel
)->r_offset
, 0)) & 0x02)
14379 result
|= PUSH_PRE
;
14382 if ((*irel
) >= irelend
)
14385 *off
= (*irel
)->r_offset
;
14387 /* The final instruction in the region, regard this one as data to ignore it. */
14388 result
|= DATA_EXIST
;
14393 case R_NDS32_LABEL
:
14394 if (((*irel
)->r_addend
& 0x1f) == 2)
14396 /* Check this point is align and decide to do ex9 or not. */
14397 result
|= CLEAN_PRE
;
14398 if (((*irel
)->r_offset
-
14399 get_nds32_elf_blank_total (&relax_blank_list
,
14400 (*irel
)->r_offset
, 0)) & 0x02)
14401 result
|= PUSH_PRE
;
14404 case R_NDS32_32_RELA
:
14406 result
|= (4 << 24);
14407 result
|= DATA_EXIST
;
14409 case R_NDS32_16_RELA
:
14411 result
|= (2 << 24);
14412 result
|= DATA_EXIST
;
14416 /* The least code alignment is 2. If the data is only one byte,
14417 we have to shift one more byte. */
14418 if ((*irel
)->r_addend
== 1)
14419 result
|= ((*irel
)->r_addend
<< 25) ;
14421 result
|= ((*irel
)->r_addend
<< 24) ;
14423 result
|= DATA_EXIST
;
14426 case R_NDS32_25_PCREL_RELA
:
14427 case R_NDS32_SDA16S3_RELA
:
14428 case R_NDS32_SDA15S3_RELA
:
14429 case R_NDS32_SDA15S3
:
14430 case R_NDS32_SDA17S2_RELA
:
14431 case R_NDS32_SDA15S2_RELA
:
14432 case R_NDS32_SDA12S2_SP_RELA
:
14433 case R_NDS32_SDA12S2_DP_RELA
:
14434 case R_NDS32_SDA15S2
:
14435 case R_NDS32_SDA18S1_RELA
:
14436 case R_NDS32_SDA15S1_RELA
:
14437 case R_NDS32_SDA15S1
:
14438 case R_NDS32_SDA19S0_RELA
:
14439 case R_NDS32_SDA15S0_RELA
:
14440 case R_NDS32_SDA15S0
:
14441 case R_NDS32_HI20_RELA
:
14442 case R_NDS32_LO12S0_ORI_RELA
:
14443 case R_NDS32_LO12S0_RELA
:
14444 case R_NDS32_LO12S1_RELA
:
14445 case R_NDS32_LO12S2_RELA
:
14446 /* These relocation is supported ex9 relaxation currently. */
14447 /* We have to save the relocation for using later, since we have
14448 to check there is any alignment in the same address. */
14452 /* Not support relocations. */
14453 if (ELF32_R_TYPE ((*irel
)->r_info
) < ARRAY_SIZE (nds32_elf_howto_table
)
14454 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_NONE
14455 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_INSN16
)
14457 /* Note: To optimize aggressively, it maybe can ignore R_NDS32_INSN16 here.
14458 But we have to consider if there is any side-effect. */
14459 if (!(result
& DATA_EXIST
))
14461 /* We have to confirm there is no data relocation in the
14462 same address. In general case, this won't happen. */
14463 /* We have to do ex9 conservative, for those relocation not
14464 considerd we ignore instruction. */
14465 result
|= DATA_EXIST
;
14466 if (*(contents
+ *off
) & 0x80)
14467 result
|= (2 << 24);
14469 result
|= (4 << 24);
14474 if ((*irel
) < irelend
14475 && ((*irel
) + 1) < irelend
14476 && (*irel
)->r_offset
== ((*irel
) + 1)->r_offset
)
14477 /* There are relocations pointing to the same address, we have to
14478 check all of them. */
14490 /* Replace with ex9 instruction. */
14493 nds32_elf_ex9_push_insn (uint16_t insn16
, bfd_byte
*contents
, bfd_vma pre_off
,
14494 nds32_elf_blank_t
**relax_blank_list
,
14495 struct elf_nds32_irel_entry
*pre_irel_ptr
,
14496 struct elf_nds32_irel_entry
**irel_list
)
14500 /* Implement the ex9 relaxation. */
14501 bfd_putb16 (insn16
, contents
+ pre_off
);
14502 if (!insert_nds32_elf_blank_recalc_total (relax_blank_list
,
14505 if (pre_irel_ptr
!= NULL
)
14506 nds32_elf_insert_irel_entry (irel_list
, pre_irel_ptr
);
14511 /* Replace input file instruction which is in ex9 itable. */
14514 nds32_elf_ex9_replace_instruction (struct bfd_link_info
*info
, bfd
*abfd
, asection
*sec
)
14516 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
14517 bfd_byte
*contents
= NULL
;
14519 uint16_t insn16
, insn_ex9
;
14520 /* `pre_*' are used to track previous instruction that can use ex9.it. */
14521 bfd_vma pre_off
= -1;
14522 uint16_t pre_insn16
= 0;
14523 struct elf_nds32_irel_entry
*pre_irel_ptr
= NULL
;
14524 Elf_Internal_Rela
*internal_relocs
;
14525 Elf_Internal_Rela
*irel
;
14526 Elf_Internal_Rela
*irelend
;
14527 Elf_Internal_Shdr
*symtab_hdr
;
14528 Elf_Internal_Sym
*isym
= NULL
;
14529 nds32_elf_blank_t
*relax_blank_list
= NULL
;
14531 uint32_t insn_with_reg
= 0;
14533 uint32_t it_insn_with_reg
;
14534 unsigned long r_symndx
;
14536 struct elf_nds32_irel_entry
*irel_list
= NULL
;
14537 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
14538 int data_flag
, do_replace
, save_irel
;
14539 struct elf_link_hash_entry_list
*h_list
;
14542 /* Load section instructions, relocations, and symbol table. */
14543 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
14544 || !nds32_get_local_syms (abfd
, sec
, &isym
))
14547 _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
, TRUE
/* keep_memory */);
14548 irelend
= internal_relocs
+ sec
->reloc_count
;
14549 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
14553 /* Check if the object enable ex9. */
14554 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
14555 irelend
, R_NDS32_RELAX_ENTRY
);
14557 /* Check this section trigger ex9 relaxation. */
14560 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
14561 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
14562 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
14565 irel
= internal_relocs
;
14567 /* Check alignment and fetch proper relocation. */
14568 while (off
< sec
->size
)
14570 struct elf_link_hash_entry
*h
= NULL
;
14571 struct elf_nds32_irel_entry
*irel_ptr
= NULL
;
14573 /* Syn the instruction and the relocation. */
14574 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
14577 data_flag
= nds32_elf_ex9_relocation_check (info
, &irel
, irelend
,
14578 relax_blank_list
, sec
,
14580 if (data_flag
& PUSH_PRE
)
14581 if (!nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14582 &relax_blank_list
, pre_irel_ptr
,
14586 if (data_flag
& CLEAN_PRE
)
14590 pre_irel_ptr
= NULL
;
14592 if (data_flag
& DATA_EXIST
)
14594 /* We save the move offset in the highest byte. */
14595 off
+= (data_flag
>> 24);
14599 if (*(contents
+ off
) & 0x80)
14601 /* 2-byte instruction. */
14606 /* Load the instruction and its opcode with register for comparing. */
14607 ex9_insn
= ex9_insn_head
;
14608 insn
= bfd_getb32 (contents
+ off
);
14612 it_insn
= strtol (ex9_insn
->string
, NULL
, 16);
14613 it_insn_with_reg
= 0;
14617 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
14619 /* Insn with relocation. */
14620 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
14622 if (ex9_insn
->irel
!= NULL
)
14623 nds32_elf_get_insn_with_reg (ex9_insn
->irel
, it_insn
,
14624 &it_insn_with_reg
);
14626 if (ex9_insn
->irel
!= NULL
14627 && (ELF32_R_TYPE (irel
->r_info
) ==
14628 ELF32_R_TYPE (ex9_insn
->irel
->r_info
))
14629 && (insn_with_reg
== it_insn_with_reg
))
14631 /* Insn relocation and format is the same as table entry. */
14633 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
14634 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
14635 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
14636 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
14637 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
14638 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
14639 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
14640 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
14641 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
14642 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
14643 && ELF32_R_TYPE (irel
->r_info
) <=
14644 R_NDS32_SDA12S2_SP_RELA
)
14645 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
14646 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
14648 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14649 if (r_symndx
< symtab_hdr
->sh_info
)
14651 /* Local symbol. */
14652 int shndx
= isym
[r_symndx
].st_shndx
;
14654 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14655 if (ex9_insn
->sec
== isec
14656 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14657 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14665 /* External symbol. */
14666 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14667 if (ex9_insn
->m_list
)
14669 h_list
= ex9_insn
->m_list
->h_list
;
14673 && (ex9_insn
->m_list
->irel
->r_addend
==
14680 h_list
= h_list
->next
;
14685 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
)
14687 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14688 if (r_symndx
< symtab_hdr
->sh_info
)
14690 /* Local symbols. Compare its base symbol and offset. */
14691 int shndx
= isym
[r_symndx
].st_shndx
;
14693 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14694 if (ex9_insn
->sec
== isec
14695 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14696 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14704 /* External symbol. */
14705 struct elf_link_hash_entry_mul_list
*m_list
;
14707 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14708 m_list
= ex9_insn
->m_list
;
14712 h_list
= m_list
->h_list
;
14717 && (m_list
->irel
->r_addend
14718 == irel
->r_addend
))
14723 && ex9_insn
->m_list
14724 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
14726 /* sethi multiple entry must be fixed */
14727 nds32_elf_ex9_insert_fix (sec
, irel
,
14728 h
, ex9_insn
->order
);
14732 h_list
= h_list
->next
;
14734 m_list
= m_list
->next
;
14740 /* Import table: Check the symbol hash table and the
14741 jump target. Only R_NDS32_25_PCREL_RELA now. */
14742 else if (ex9_insn
->times
== -1
14743 && ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
14745 nds32_elf_get_insn_with_reg (irel
, it_insn
, &it_insn_with_reg
);
14746 if (insn_with_reg
== it_insn_with_reg
)
14749 bfd_vma relocation
;
14751 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14752 if (r_symndx
>= symtab_hdr
->sh_info
)
14754 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14755 if ((h
->root
.type
== bfd_link_hash_defined
14756 || h
->root
.type
== bfd_link_hash_defweak
)
14757 && h
->root
.u
.def
.section
!= NULL
14758 && h
->root
.u
.def
.section
->output_section
!= NULL
14759 && h
->root
.u
.def
.section
->gc_mark
== 1
14760 && bfd_is_abs_section (h
->root
.u
.def
.section
)
14761 && h
->root
.u
.def
.value
> sec
->size
)
14763 relocation
= h
->root
.u
.def
.value
+
14764 h
->root
.u
.def
.section
->output_section
->vma
+
14765 h
->root
.u
.def
.section
->output_offset
;
14766 relocation
+= irel
->r_addend
;
14767 insn
= insn_with_reg
14768 | ((relocation
>> 1) & 0xffffff);
14769 snprintf (code
, sizeof (code
), "%08x", insn
);
14770 if (strcmp (code
, ex9_insn
->string
) == 0)
14779 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
14780 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
14781 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
14783 /* These relocations do not have to relocate contens, so it can
14784 be regard as instruction without relocation. */
14785 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14791 /* Instruction without relocation, we only
14792 have to compare their byte code. */
14793 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14797 /* Insntruction match so replacing the code here. */
14798 if (do_replace
== 1)
14800 /* There are two formats of ex9 instruction. */
14801 if (ex9_insn
->order
< 32)
14802 insn_ex9
= INSN_EX9_IT_2
;
14804 insn_ex9
= INSN_EX9_IT_1
;
14805 insn16
= insn_ex9
| ex9_insn
->order
;
14807 /* Insert ex9 instruction. */
14808 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14809 &relax_blank_list
, pre_irel_ptr
,
14812 pre_insn16
= insn16
;
14816 /* For instuction with relocation do relax. */
14817 irel_ptr
= (struct elf_nds32_irel_entry
*)
14818 bfd_malloc (sizeof (struct elf_nds32_irel_entry
));
14819 irel_ptr
->irel
= irel
;
14820 irel_ptr
->next
= NULL
;
14821 pre_irel_ptr
= irel_ptr
;
14824 pre_irel_ptr
= NULL
;
14827 ex9_insn
= ex9_insn
->next
;
14832 /* Insert ex9 instruction. */
14833 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14834 &relax_blank_list
, pre_irel_ptr
,
14837 /* Delete the redundant code. */
14838 if (relax_blank_list
)
14840 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
14841 relax_blank_list
= NULL
;
14844 /* Clear the relocation that is replaced by ex9. */
14847 struct elf_nds32_irel_entry
*irel_ptr
;
14849 irel_ptr
= irel_list
;
14850 irel_list
= irel_ptr
->next
;
14851 irel_ptr
->irel
->r_info
=
14852 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
), R_NDS32_TRAN
);
14858 /* Initialize ex9 hash table. */
14861 nds32_elf_ex9_init (void)
14863 if (!bfd_hash_table_init_n (&ex9_code_table
, nds32_elf_code_hash_newfunc
,
14864 sizeof (struct elf_nds32_code_hash_entry
),
14867 (*_bfd_error_handler
) (_("Linker: cannot init ex9 hash table error \n"));
14873 /* Predict how many bytes will be relaxed with ex9 and ifc. */
14876 nds32_elf_ex9_total_relax (struct bfd_link_info
*info
)
14878 struct elf_nds32_insn_times_entry
*ex9_insn
;
14879 struct elf_nds32_insn_times_entry
*temp
;
14880 int target_optimize
;
14881 struct elf_nds32_link_hash_table
*table
;
14883 if (ex9_insn_head
== NULL
)
14886 table
= nds32_elf_hash_table (info
);
14887 target_optimize
= table
->target_optimize
;
14888 ex9_insn
= ex9_insn_head
;
14891 ex9_relax_size
= ex9_insn
->times
* 2 + ex9_relax_size
;
14893 ex9_insn
= ex9_insn
->next
;
14896 ex9_insn_head
= NULL
;
14898 if ((target_optimize
& NDS32_RELAX_JUMP_IFC_ON
))
14900 /* Examine ifc reduce size. */
14901 struct elf_nds32_ifc_symbol_entry
*ifc_ent
= ifc_symbol_head
;
14902 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
14907 if (ifc_ent
->enable
== 0)
14910 irel_ptr
= ifc_ent
->irel_head
;
14914 irel_ptr
= irel_ptr
->next
;
14918 ifc_ent
= ifc_ent
->next
;
14920 ex9_relax_size
+= size
;
14924 /* Finish ex9 table. */
14927 nds32_elf_ex9_finish (struct bfd_link_info
*link_info
)
14929 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
14930 nds32_elf_order_insn_times (link_info
);
14931 nds32_elf_ex9_total_relax (link_info
);
14932 /* Traverse the hash table and count its times. */
14933 nds32_elf_code_hash_traverse (nds32_elf_count_insn_times
);
14934 nds32_elf_order_insn_times (link_info
);
14935 nds32_elf_ex9_build_itable (link_info
);
14938 /* Relocate the entries in ex9 table. */
14941 nds32_elf_ex9_reloc_insn (struct elf_nds32_insn_times_entry
*ptr
,
14942 struct bfd_link_info
*link_info
)
14944 Elf_Internal_Sym
*isym
= NULL
;
14945 bfd_vma relocation
= -1;
14946 struct elf_link_hash_entry
*h
;
14948 if (ptr
->m_list
!= NULL
)
14950 /* Global symbol. */
14951 h
= ptr
->m_list
->h_list
->h
;
14952 if ((h
->root
.type
== bfd_link_hash_defined
14953 || h
->root
.type
== bfd_link_hash_defweak
)
14954 && h
->root
.u
.def
.section
!= NULL
14955 && h
->root
.u
.def
.section
->output_section
!= NULL
)
14958 relocation
= h
->root
.u
.def
.value
+
14959 h
->root
.u
.def
.section
->output_section
->vma
+
14960 h
->root
.u
.def
.section
->output_offset
;
14961 relocation
+= ptr
->m_list
->irel
->r_addend
;
14966 else if (ptr
->sec
!=NULL
)
14968 /* Local symbol. */
14969 Elf_Internal_Sym sym
;
14970 asection
*sec
= NULL
;
14972 asection
*isec_ptr
= &isec
;
14973 Elf_Internal_Rela irel_backup
= *(ptr
->irel
);
14974 asection
*sec_backup
= ptr
->sec
;
14975 bfd
*abfd
= ptr
->sec
->owner
;
14977 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
14979 isym
= isym
+ ELF32_R_SYM (ptr
->irel
->r_info
);
14981 sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
14986 /* The purpose is same as elf_link_input_bfd. */
14987 if (isec_ptr
!= NULL
14988 && isec_ptr
->sec_info_type
== SEC_INFO_TYPE_MERGE
14989 && ELF_ST_TYPE (isym
->st_info
) != STT_SECTION
)
14992 _bfd_merged_section_offset (ptr
->sec
->output_section
->owner
, &isec_ptr
,
14993 elf_section_data (isec_ptr
)->sec_info
,
14996 relocation
= _bfd_elf_rela_local_sym (link_info
->output_bfd
, &sym
,
14997 &ptr
->sec
, ptr
->irel
);
14998 if (ptr
->irel
!= NULL
)
14999 relocation
+= ptr
->irel
->r_addend
;
15001 /* Restore origin value since there may be some insntructions that
15002 could not be replaced with ex9.it. */
15003 *(ptr
->irel
) = irel_backup
;
15004 ptr
->sec
= sec_backup
;
15010 /* Import ex9 table and build list. */
15013 nds32_elf_ex9_import_table (struct bfd_link_info
*info
)
15016 bfd_byte
*contents
;
15017 unsigned long insn
;
15018 FILE *ex9_import_file
;
15019 int update_ex9_table
;
15020 struct elf_nds32_link_hash_table
*table
;
15022 table
= nds32_elf_hash_table (info
);
15023 ex9_import_file
= table
->ex9_import_file
;
15024 rewind (table
->ex9_import_file
);
15026 contents
= bfd_malloc (sizeof (bfd_byte
) * 4);
15028 /* Read instructions from the input file and build the list. */
15029 while (!feof (ex9_import_file
))
15032 struct elf_nds32_insn_times_entry
*ptr
;
15035 nread
= fread (contents
, sizeof (bfd_byte
) * 4, 1, ex9_import_file
);
15036 /* Ignore the final byte 0x0a. */
15039 insn
= bfd_getb32 (contents
);
15040 code
= bfd_malloc (sizeof (char) * 9);
15041 snprintf (code
, 9, "%08lx", insn
);
15042 ptr
= bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
15043 ptr
->string
= code
;
15047 ptr
->m_list
= NULL
;
15048 ptr
->rel_backup
.r_offset
= 0;
15049 ptr
->rel_backup
.r_info
= 0;
15050 ptr
->rel_backup
.r_addend
= 0;
15053 nds32_elf_ex9_insert_entry (ptr
);
15057 update_ex9_table
= table
->update_ex9_table
;
15058 if (update_ex9_table
== 1)
15060 /* It has to consider of sethi need to use multiple page
15061 but it not be done yet. */
15062 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
15063 nds32_elf_order_insn_times (info
);
15067 /* Export ex9 table. */
15070 nds32_elf_ex9_export (struct bfd_link_info
*info
,
15071 bfd_byte
*contents
, int size
)
15073 FILE *ex9_export_file
;
15074 struct elf_nds32_link_hash_table
*table
;
15076 table
= nds32_elf_hash_table (info
);
15077 ex9_export_file
= table
->ex9_export_file
;
15078 fwrite (contents
, sizeof (bfd_byte
), size
, ex9_export_file
);
15079 fclose (ex9_export_file
);
15082 /* Adjust relocations of J and JAL in ex9.itable.
15083 Export ex9 table. */
15086 nds32_elf_ex9_reloc_jmp (struct bfd_link_info
*link_info
)
15088 asection
*table_sec
= NULL
;
15089 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
15090 struct elf_nds32_insn_times_entry
*temp_ptr
, *temp_ptr2
;
15092 uint32_t insn
, insn_with_reg
, source_insn
;
15093 bfd_byte
*contents
= NULL
, *source_contents
= NULL
;
15096 int shift
, update_ex9_table
, offset
= 0;
15097 reloc_howto_type
*howto
= NULL
;
15098 Elf_Internal_Rela rel_backup
;
15099 unsigned short insn_ex9
;
15100 struct elf_nds32_link_hash_table
*table
;
15101 FILE *ex9_export_file
;
15102 static bfd_boolean done
= FALSE
;
15109 table
= nds32_elf_hash_table (link_info
);
15111 table
->relax_status
|= NDS32_RELAX_EX9_DONE
;
15114 update_ex9_table
= table
->update_ex9_table
;
15115 /* Generated ex9.itable exactly. */
15116 if (update_ex9_table
== 0)
15118 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
15119 it_abfd
= it_abfd
->link
.next
)
15121 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
15122 if (table_sec
!= NULL
)
15126 if (table_sec
!= NULL
)
15130 output_bfd
= table_sec
->output_section
->owner
;
15131 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15132 if (table_sec
->size
== 0)
15135 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
15144 output_bfd
= link_info
->input_bfds
->sections
->output_section
->owner
;
15145 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15146 contents
= bfd_malloc (sizeof (bfd_byte
) * 2048);
15149 /* Relocate instruction. */
15152 bfd_vma relocation
, min_relocation
= 0xffffffff;
15154 insn
= strtol (ex9_insn
->string
, NULL
, 16);
15156 if (ex9_insn
->m_list
!= NULL
|| ex9_insn
->sec
!= NULL
)
15158 if (ex9_insn
->m_list
)
15159 rel_backup
= ex9_insn
->m_list
->rel_backup
;
15161 rel_backup
= ex9_insn
->rel_backup
;
15163 nds32_elf_get_insn_with_reg (&rel_backup
, insn
, &insn_with_reg
);
15165 bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE
15166 (rel_backup
.r_info
));
15167 shift
= howto
->rightshift
;
15168 if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_25_PCREL_RELA
15169 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_ORI_RELA
15170 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_RELA
15171 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S1_RELA
15172 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S2_RELA
)
15174 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15176 insn_with_reg
| ((relocation
>> shift
) &
15177 nds32_elf_irel_mask (&rel_backup
));
15178 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15180 else if ((ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3
15181 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0
)
15182 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3_RELA
15183 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0_RELA
)
15184 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA12S2_DP_RELA
15185 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15186 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA16S3_RELA
15187 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA19S0_RELA
))
15189 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15191 insn_with_reg
| (((relocation
- gp
) >> shift
) &
15192 nds32_elf_irel_mask (&rel_backup
));
15193 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15195 else if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_HI20_RELA
)
15197 /* Sethi may be multiple entry for one insn. */
15198 if (ex9_insn
->next
&& ex9_insn
->m_list
15199 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15201 struct elf_link_hash_entry_mul_list
*m_list
;
15202 struct elf_nds32_ex9_refix
*fix_ptr
;
15203 struct elf_link_hash_entry
*h
;
15205 temp_ptr
= ex9_insn
;
15206 temp_ptr2
= ex9_insn
;
15207 m_list
= ex9_insn
->m_list
;
15210 h
= m_list
->h_list
->h
;
15211 relocation
= h
->root
.u
.def
.value
+
15212 h
->root
.u
.def
.section
->output_section
->vma
+
15213 h
->root
.u
.def
.section
->output_offset
;
15214 relocation
+= m_list
->irel
->r_addend
;
15216 if (relocation
< min_relocation
)
15217 min_relocation
= relocation
;
15218 m_list
= m_list
->next
;
15220 relocation
= min_relocation
;
15222 /* Put insntruction into ex9 table. */
15223 insn
= insn_with_reg
15224 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15225 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15226 relocation
= relocation
+ 0x1000; /* hi20 */
15228 while (ex9_insn
->next
&& ex9_insn
->m_list
15229 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15231 /* Multiple sethi. */
15232 ex9_insn
= ex9_insn
->next
;
15235 insn_with_reg
| ((relocation
>> shift
) &
15236 nds32_elf_irel_mask (&rel_backup
));
15237 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15238 relocation
= relocation
+ 0x1000; /* hi20 */
15241 fix_ptr
= ex9_refix_head
;
15244 /* Fix ex9 insn. */
15245 /* temp_ptr2 points to the head of multiple sethi. */
15246 temp_ptr
= temp_ptr2
;
15247 while (fix_ptr
->order
!= temp_ptr
->order
&& fix_ptr
->next
)
15249 fix_ptr
= fix_ptr
->next
;
15251 if (fix_ptr
->order
!= temp_ptr
->order
)
15254 /* Set source insn. */
15256 fix_ptr
->h
->root
.u
.def
.value
+
15257 fix_ptr
->h
->root
.u
.def
.section
->output_section
->vma
+
15258 fix_ptr
->h
->root
.u
.def
.section
->output_offset
;
15259 relocation
+= fix_ptr
->irel
->r_addend
;
15260 /* sethi imm is imm20s. */
15261 source_insn
= insn_with_reg
| ((relocation
>> shift
) & 0xfffff);
15265 /* Match entry and source code. */
15266 insn
= bfd_getb32 (contents
+ (temp_ptr
->order
) * 4 + offset
);
15267 if (insn
== source_insn
)
15269 /* Fix the ex9 insn. */
15270 if (temp_ptr
->order
!= fix_ptr
->order
)
15272 if (!nds32_get_section_contents
15273 (fix_ptr
->sec
->owner
, fix_ptr
->sec
,
15274 &source_contents
, TRUE
))
15275 (*_bfd_error_handler
)
15276 (_("Linker: error cannot fixed ex9 relocation \n"));
15277 if (temp_ptr
->order
< 32)
15278 insn_ex9
= INSN_EX9_IT_2
;
15280 insn_ex9
= INSN_EX9_IT_1
;
15281 insn_ex9
= insn_ex9
| temp_ptr
->order
;
15282 bfd_putb16 (insn_ex9
, source_contents
+ fix_ptr
->irel
->r_offset
);
15288 if (!temp_ptr
->next
|| temp_ptr
->m_list
!= temp_ptr
->next
->m_list
)
15289 (*_bfd_error_handler
)
15290 (_("Linker: error cannot fixed ex9 relocation \n"));
15292 temp_ptr
= temp_ptr
->next
;
15295 fix_ptr
= fix_ptr
->next
;
15300 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15301 insn
= insn_with_reg
15302 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15303 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15309 /* Insn without relocation does not have to be fixed
15310 if need to update export table. */
15311 if (update_ex9_table
== 1)
15312 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15314 ex9_insn
= ex9_insn
->next
;
15318 ex9_export_file
= table
->ex9_export_file
;
15319 if (ex9_export_file
!= NULL
)
15320 nds32_elf_ex9_export (link_info
, contents
, table_sec
->size
);
15321 else if (update_ex9_table
== 1)
15323 table
->ex9_export_file
= table
->ex9_import_file
;
15324 rewind (table
->ex9_export_file
);
15325 nds32_elf_ex9_export (link_info
, contents
, size
);
15329 /* Generate ex9 hash table. */
15332 nds32_elf_ex9_build_hash_table (bfd
*abfd
, asection
*sec
,
15333 struct bfd_link_info
*link_info
)
15335 Elf_Internal_Rela
*internal_relocs
;
15336 Elf_Internal_Rela
*irelend
;
15337 Elf_Internal_Rela
*irel
;
15338 Elf_Internal_Rela
*jrel
;
15339 Elf_Internal_Rela rel_backup
;
15340 Elf_Internal_Shdr
*symtab_hdr
;
15341 Elf_Internal_Sym
*isym
= NULL
;
15343 struct elf_link_hash_entry
**sym_hashes
;
15344 bfd_byte
*contents
= NULL
;
15346 unsigned long r_symndx
;
15347 uint32_t insn
, insn_with_reg
;
15348 struct elf_link_hash_entry
*h
;
15349 int data_flag
, shift
, align
;
15350 bfd_vma relocation
;
15351 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
15352 reloc_howto_type
*howto
= NULL
;
15354 sym_hashes
= elf_sym_hashes (abfd
);
15355 /* Load section instructions, relocations, and symbol table. */
15356 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
15359 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
15360 TRUE
/* keep_memory */);
15361 irelend
= internal_relocs
+ sec
->reloc_count
;
15362 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
15363 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
15366 /* Check the object if enable ex9. */
15367 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
15368 R_NDS32_RELAX_ENTRY
);
15370 /* Check this section trigger ex9 relaxation. */
15373 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
15374 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
15375 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
15378 irel
= internal_relocs
;
15380 /* Push each insn into hash table. */
15381 while (off
< sec
->size
)
15384 struct elf_nds32_code_hash_entry
*entry
;
15386 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
15389 data_flag
= nds32_elf_ex9_relocation_check (link_info
, &irel
, irelend
,
15390 NULL
, sec
, &off
, contents
);
15391 if (data_flag
& DATA_EXIST
)
15393 /* We save the move offset in the highest byte. */
15394 off
+= (data_flag
>> 24);
15398 if (*(contents
+ off
) & 0x80)
15407 rel_backup
.r_info
= 0;
15408 rel_backup
.r_offset
= 0;
15409 rel_backup
.r_addend
= 0;
15410 /* Load the instruction and its opcode with register for comparing. */
15411 insn
= bfd_getb32 (contents
+ off
);
15413 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
15415 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
15416 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
15417 shift
= howto
->rightshift
;
15418 align
= (1 << shift
) - 1;
15419 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
15420 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
15421 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
15422 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
15423 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
15424 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
15425 ||(ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15426 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15427 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15428 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15429 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15430 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15431 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15432 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15434 r_symndx
= ELF32_R_SYM (irel
->r_info
);
15436 rel_backup
= *irel
;
15437 if (r_symndx
< symtab_hdr
->sh_info
)
15439 /* Local symbol. */
15440 int shndx
= isym
[r_symndx
].st_shndx
;
15442 bfd_vma st_value
= (isym
+ r_symndx
)->st_value
;
15443 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
15444 relocation
= (isec
->output_section
->vma
+ isec
->output_offset
15445 + st_value
+ irel
->r_addend
);
15449 /* External symbol. */
15450 bfd_boolean warned ATTRIBUTE_UNUSED
;
15451 bfd_boolean ignored ATTRIBUTE_UNUSED
;
15452 bfd_boolean unresolved_reloc ATTRIBUTE_UNUSED
;
15455 /* Maybe there is a better way to get h and relocation */
15456 RELOC_FOR_GLOBAL_SYMBOL (link_info
, abfd
, sec
, irel
,
15457 r_symndx
, symtab_hdr
, sym_hashes
,
15458 h
, sym_sec
, relocation
,
15459 unresolved_reloc
, warned
, ignored
);
15460 relocation
+= irel
->r_addend
;
15461 if ((h
->root
.type
!= bfd_link_hash_defined
15462 && h
->root
.type
!= bfd_link_hash_defweak
)
15463 || strcmp (h
->root
.root
.string
, "_FP_BASE_") == 0)
15470 /* Check for gp relative instruction alignment. */
15471 if ((ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15472 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15473 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15474 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15475 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15476 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15477 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15478 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15481 bfd
*output_bfd
= sec
->output_section
->owner
;
15482 bfd_reloc_status_type r
;
15484 /* If the symbol is in the abs section, the out_bfd will be null.
15485 This happens when the relocation has a symbol@GOTOFF. */
15486 r
= nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15487 if (r
!= bfd_reloc_ok
)
15495 /* Make sure alignment is correct. */
15496 if (relocation
& align
)
15498 /* Incorrect alignment. */
15499 (*_bfd_error_handler
)
15500 (_("%s: warning: unaligned small data access. "
15501 "For entry: {%d, %d, %d}, addr = 0x%x, align = 0x%x."),
15502 bfd_get_filename (abfd
), irel
->r_offset
,
15503 irel
->r_info
, irel
->r_addend
, relocation
, align
);
15509 insn
= insn_with_reg
15510 | ((relocation
>> shift
) & nds32_elf_irel_mask (irel
));
15512 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
15513 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
15514 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
15516 /* These relocations do not have to relocate contens, so it can
15517 be regard as instruction without relocation. */
15526 snprintf (code
, sizeof (code
), "%08x", insn
);
15528 entry
= (struct elf_nds32_code_hash_entry
*)
15529 bfd_hash_lookup (&ex9_code_table
, code
, TRUE
, TRUE
);
15532 (*_bfd_error_handler
)
15533 (_("%P%F: failed creating ex9.it %s hash table: %E\n"), code
);
15538 if (h
->root
.type
== bfd_link_hash_undefined
)
15540 /* Global symbol. */
15541 /* In order to do sethi with different symbol but same value. */
15542 if (entry
->m_list
== NULL
)
15544 struct elf_link_hash_entry_mul_list
*m_list_new
;
15545 struct elf_link_hash_entry_list
*h_list_new
;
15547 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15548 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15549 h_list_new
= (struct elf_link_hash_entry_list
*)
15550 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15551 entry
->m_list
= m_list_new
;
15552 m_list_new
->h_list
= h_list_new
;
15553 m_list_new
->rel_backup
= rel_backup
;
15554 m_list_new
->times
= 1;
15555 m_list_new
->irel
= jrel
;
15556 m_list_new
->next
= NULL
;
15558 h_list_new
->next
= NULL
;
15562 struct elf_link_hash_entry_mul_list
*m_list
= entry
->m_list
;
15563 struct elf_link_hash_entry_list
*h_list
;
15567 /* Build the different symbols that point to the same address. */
15568 h_list
= m_list
->h_list
;
15569 if (h_list
->h
->root
.u
.def
.value
== h
->root
.u
.def
.value
15570 && h_list
->h
->root
.u
.def
.section
->output_section
->vma
15571 == h
->root
.u
.def
.section
->output_section
->vma
15572 && h_list
->h
->root
.u
.def
.section
->output_offset
15573 == h
->root
.u
.def
.section
->output_offset
15574 && m_list
->rel_backup
.r_addend
== rel_backup
.r_addend
)
15577 m_list
->irel
= jrel
;
15578 while (h_list
->h
!= h
&& h_list
->next
)
15579 h_list
= h_list
->next
;
15580 if (h_list
->h
!= h
)
15582 struct elf_link_hash_entry_list
*h_list_new
;
15584 h_list_new
= (struct elf_link_hash_entry_list
*)
15585 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15586 h_list
->next
= h_list_new
;
15588 h_list_new
->next
= NULL
;
15592 /* The sethi case may have different address but the
15593 hi20 is the same. */
15594 else if (ELF32_R_TYPE (jrel
->r_info
) == R_NDS32_HI20_RELA
15595 && m_list
->next
== NULL
)
15597 struct elf_link_hash_entry_mul_list
*m_list_new
;
15598 struct elf_link_hash_entry_list
*h_list_new
;
15600 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15601 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15602 h_list_new
= (struct elf_link_hash_entry_list
*)
15603 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15604 m_list
->next
= m_list_new
;
15605 m_list_new
->h_list
= h_list_new
;
15606 m_list_new
->rel_backup
= rel_backup
;
15607 m_list_new
->times
= 1;
15608 m_list_new
->irel
= jrel
;
15609 m_list_new
->next
= NULL
;
15611 h_list_new
->next
= NULL
;
15614 m_list
= m_list
->next
;
15625 /* Local symbol and insn without relocation*/
15627 entry
->rel_backup
= rel_backup
;
15630 /* Use in sethi insn with constant and global symbol in same format. */
15632 entry
->const_insn
= 1;
15634 entry
->irel
= jrel
;
15642 /* Set the _ITB_BASE, and point it to ex9 table. */
15645 nds32_elf_ex9_itb_base (struct bfd_link_info
*link_info
)
15649 bfd
*output_bfd
= NULL
;
15650 struct bfd_link_hash_entry
*bh
= NULL
;
15652 if (is_ITB_BASE_set
== 1)
15655 is_ITB_BASE_set
= 1;
15657 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_", FALSE
, FALSE
, TRUE
);
15659 if (bh
&& (bh
->type
== bfd_link_hash_defined
15660 || bh
->type
== bfd_link_hash_defweak
))
15663 for (abfd
= link_info
->input_bfds
; abfd
!= NULL
;
15664 abfd
= abfd
->link
.next
)
15666 sec
= bfd_get_section_by_name (abfd
, ".ex9.itable");
15669 output_bfd
= sec
->output_section
->owner
;
15673 if (output_bfd
== NULL
)
15675 output_bfd
= link_info
->output_bfd
;
15676 if (output_bfd
->sections
== NULL
)
15679 sec
= bfd_abs_section_ptr
;
15681 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_",
15682 FALSE
, FALSE
, TRUE
);
15683 return (_bfd_generic_link_add_one_symbol
15684 (link_info
, output_bfd
, "_ITB_BASE_",
15685 BSF_GLOBAL
| BSF_WEAK
, sec
, 0,
15686 (const char *) NULL
, FALSE
, get_elf_backend_data
15687 (output_bfd
)->collect
, &bh
));
15691 #define ELF_ARCH bfd_arch_nds32
15692 #define ELF_MACHINE_CODE EM_NDS32
15693 #define ELF_MAXPAGESIZE 0x1000
15694 #define ELF_TARGET_ID NDS32_ELF_DATA
15696 #define TARGET_BIG_SYM nds32_elf32_be_vec
15697 #define TARGET_BIG_NAME "elf32-nds32be"
15698 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
15699 #define TARGET_LITTLE_NAME "elf32-nds32le"
15701 #define elf_info_to_howto nds32_info_to_howto
15702 #define elf_info_to_howto_rel nds32_info_to_howto_rel
15704 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
15705 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
15706 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
15707 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
15708 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
15710 #define bfd_elf32_mkobject nds32_elf_mkobject
15711 #define elf_backend_action_discarded nds32_elf_action_discarded
15712 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
15713 #define elf_backend_check_relocs nds32_elf_check_relocs
15714 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
15715 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
15716 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
15717 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
15718 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
15719 #define elf_backend_relocate_section nds32_elf_relocate_section
15720 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
15721 #define elf_backend_gc_sweep_hook nds32_elf_gc_sweep_hook
15722 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
15723 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
15724 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
15725 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
15726 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
15727 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
15728 #define elf_backend_object_p nds32_elf_object_p
15729 #define elf_backend_final_write_processing nds32_elf_final_write_processing
15730 #define elf_backend_special_sections nds32_elf_special_sections
15731 #define bfd_elf32_bfd_get_relocated_section_contents \
15732 nds32_elf_get_relocated_section_contents
15734 #define elf_backend_can_gc_sections 1
15735 #define elf_backend_can_refcount 1
15736 #define elf_backend_want_got_plt 1
15737 #define elf_backend_plt_readonly 1
15738 #define elf_backend_want_plt_sym 0
15739 #define elf_backend_got_header_size 12
15740 #define elf_backend_may_use_rel_p 1
15741 #define elf_backend_default_use_rela_p 1
15742 #define elf_backend_may_use_rela_p 1
15744 #include "elf32-target.h"
15746 #undef ELF_MAXPAGESIZE
15747 #define ELF_MAXPAGESIZE 0x2000
15749 #undef TARGET_BIG_SYM
15750 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
15751 #undef TARGET_BIG_NAME
15752 #define TARGET_BIG_NAME "elf32-nds32be-linux"
15753 #undef TARGET_LITTLE_SYM
15754 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
15755 #undef TARGET_LITTLE_NAME
15756 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
15758 #define elf32_bed elf32_nds32_lin_bed
15760 #include "elf32-target.h"