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
);
5718 dyn
.d_un
.d_ptr
= s
->output_section
->vma
+ s
->output_offset
;
5719 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5724 dyn
.d_un
.d_val
= s
->size
;
5725 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5729 /* My reading of the SVR4 ABI indicates that the
5730 procedure linkage table relocs (DT_JMPREL) should be
5731 included in the overall relocs (DT_RELA). This is
5732 what Solaris does. However, UnixWare can not handle
5733 that case. Therefore, we override the DT_RELASZ entry
5734 here to make it not include the JMPREL relocs. Since
5735 the linker script arranges for .rela.plt to follow all
5736 other relocation sections, we don't have to worry
5737 about changing the DT_RELA entry. */
5738 if (htab
->srelplt
!= NULL
)
5741 dyn
.d_un
.d_val
-= s
->size
;
5743 bfd_elf32_swap_dyn_out (output_bfd
, &dyn
, dyncon
);
5748 /* Fill in the first entry in the procedure linkage table. */
5750 if (splt
&& splt
->size
> 0)
5752 if (bfd_link_pic (info
))
5757 /* FIXME, sda_base is 65536, it will damage opcode. */
5758 /* insn = PLT_PIC_ENTRY_WORD0 + (((got_offset - sda_base) >> 2) & 0x7fff); */
5759 offset
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4
5760 - elf_gp (output_bfd
);
5761 insn
= PLT0_PIC_ENTRY_WORD0
| ((offset
>> 12) & 0xfffff);
5762 bfd_putb32 (insn
, splt
->contents
);
5764 /* insn = PLT0_PIC_ENTRY_WORD0 | (((8 - sda_base) >> 2) & 0x7fff) ; */
5765 /* here has a typo? */
5766 insn
= PLT0_PIC_ENTRY_WORD1
| (offset
& 0xfff);
5767 bfd_putb32 (insn
, splt
->contents
+ 4);
5769 insn
= PLT0_PIC_ENTRY_WORD2
;
5770 bfd_putb32 (insn
, splt
->contents
+ 8);
5772 insn
= PLT0_PIC_ENTRY_WORD3
;
5773 bfd_putb32 (insn
, splt
->contents
+ 12);
5775 insn
= PLT0_PIC_ENTRY_WORD4
;
5776 bfd_putb32 (insn
, splt
->contents
+ 16);
5778 insn
= PLT0_PIC_ENTRY_WORD5
;
5779 bfd_putb32 (insn
, splt
->contents
+ 20);
5786 /* addr = .got + 4 */
5787 addr
= sgot
->output_section
->vma
+ sgot
->output_offset
+ 4;
5788 insn
= PLT0_ENTRY_WORD0
| ((addr
>> 12) & 0xfffff);
5789 bfd_putb32 (insn
, splt
->contents
);
5791 insn
= PLT0_ENTRY_WORD1
| (addr
& 0x0fff);
5792 bfd_putb32 (insn
, splt
->contents
+ 4);
5794 insn
= PLT0_ENTRY_WORD2
;
5795 bfd_putb32 (insn
, splt
->contents
+ 8);
5797 insn
= PLT0_ENTRY_WORD3
;
5798 bfd_putb32 (insn
, splt
->contents
+ 12);
5800 insn
= PLT0_ENTRY_WORD4
;
5801 bfd_putb32 (insn
, splt
->contents
+ 16);
5804 elf_section_data (splt
->output_section
)->this_hdr
.sh_entsize
=
5809 /* Fill in the first three entries in the global offset table. */
5810 if (sgot
&& sgot
->size
> 0)
5813 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
);
5815 bfd_put_32 (output_bfd
,
5816 sdyn
->output_section
->vma
+ sdyn
->output_offset
,
5818 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 4);
5819 bfd_put_32 (output_bfd
, (bfd_vma
) 0, sgot
->contents
+ 8);
5821 elf_section_data (sgot
->output_section
)->this_hdr
.sh_entsize
= 4;
5828 /* Set the right machine number. */
5831 nds32_elf_object_p (bfd
*abfd
)
5833 static unsigned int cur_arch
= 0;
5835 if (E_N1_ARCH
!= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
))
5837 /* E_N1_ARCH is a wild card, so it is set only when no others exist. */
5838 cur_arch
= (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
);
5845 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1
);
5848 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h
);
5850 case E_NDS_ARCH_STAR_V2_0
:
5851 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v2
);
5853 case E_NDS_ARCH_STAR_V3_0
:
5854 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3
);
5856 case E_NDS_ARCH_STAR_V3_M
:
5857 bfd_default_set_arch_mach (abfd
, bfd_arch_nds32
, bfd_mach_n1h_v3m
);
5864 /* Store the machine number in the flags field. */
5867 nds32_elf_final_write_processing (bfd
*abfd
,
5868 bfd_boolean linker ATTRIBUTE_UNUSED
)
5871 static unsigned int cur_mach
= 0;
5873 if (bfd_mach_n1
!= bfd_get_mach (abfd
))
5875 cur_mach
= bfd_get_mach (abfd
);
5881 /* Only happen when object is empty, since the case is abandon. */
5883 val
|= E_NDS_ABI_AABI
;
5884 val
|= E_NDS32_ELF_VER_1_4
;
5889 case bfd_mach_n1h_v2
:
5890 val
= E_NDS_ARCH_STAR_V2_0
;
5892 case bfd_mach_n1h_v3
:
5893 val
= E_NDS_ARCH_STAR_V3_0
;
5895 case bfd_mach_n1h_v3m
:
5896 val
= E_NDS_ARCH_STAR_V3_M
;
5903 elf_elfheader (abfd
)->e_flags
&= ~EF_NDS_ARCH
;
5904 elf_elfheader (abfd
)->e_flags
|= val
;
5907 /* Function to keep NDS32 specific file flags. */
5910 nds32_elf_set_private_flags (bfd
*abfd
, flagword flags
)
5912 BFD_ASSERT (!elf_flags_init (abfd
)
5913 || elf_elfheader (abfd
)->e_flags
== flags
);
5915 elf_elfheader (abfd
)->e_flags
= flags
;
5916 elf_flags_init (abfd
) = TRUE
;
5921 convert_e_flags (unsigned int e_flags
, unsigned int arch
)
5923 if ((e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
)
5925 /* From 0.9 to 1.0. */
5926 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V1_0
;
5928 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5929 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5930 if (arch
== E_NDS_ARCH_STAR_V1_0
)
5937 /* From 1.0 to 2.0. */
5938 e_flags
= (e_flags
& (~EF_NDS_ARCH
)) | E_NDS_ARCH_STAR_V2_0
;
5940 /* Clear E_NDS32_HAS_MFUSR_PC_INST. */
5941 e_flags
&= ~E_NDS32_HAS_MFUSR_PC_INST
;
5943 /* Invert E_NDS32_HAS_NO_MAC_INST. */
5944 e_flags
^= E_NDS32_HAS_NO_MAC_INST
;
5949 nds32_check_vec_size (bfd
*ibfd
)
5951 static unsigned int nds32_vec_size
= 0;
5953 asection
*sec_t
= NULL
;
5954 bfd_byte
*contents
= NULL
;
5956 sec_t
= bfd_get_section_by_name (ibfd
, ".nds32_e_flags");
5958 if (sec_t
&& sec_t
->size
>= 4)
5960 /* Get vec_size in file. */
5961 unsigned int flag_t
;
5963 nds32_get_section_contents (ibfd
, sec_t
, &contents
, TRUE
);
5964 flag_t
= bfd_get_32 (ibfd
, contents
);
5966 /* The value could only be 4 or 16. */
5968 if (!nds32_vec_size
)
5969 /* Set if not set yet. */
5970 nds32_vec_size
= (flag_t
& 0x3);
5971 else if (nds32_vec_size
!= (flag_t
& 0x3))
5973 (*_bfd_error_handler
) (_("%B: ISR vector size mismatch"
5974 " with previous modules, previous %u-byte, current %u-byte"),
5976 nds32_vec_size
== 1 ? 4 : nds32_vec_size
== 2 ? 16 : 0xffffffff,
5977 (flag_t
& 0x3) == 1 ? 4 : (flag_t
& 0x3) == 2 ? 16 : 0xffffffff);
5981 /* Only keep the first vec_size section. */
5982 sec_t
->flags
|= SEC_EXCLUDE
;
5988 /* Merge backend specific data from an object file to the output
5989 object file when linking. */
5992 nds32_elf_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
5996 flagword out_16regs
;
5998 flagword out_no_mac
;
6000 flagword out_version
;
6001 flagword in_version
;
6002 flagword out_fpu_config
;
6003 flagword in_fpu_config
;
6005 /* TODO: Revise to use object-attributes instead. */
6006 if (!nds32_check_vec_size (ibfd
))
6009 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
6010 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
6013 if (bfd_little_endian (ibfd
) != bfd_little_endian (obfd
))
6015 (*_bfd_error_handler
)
6016 (_("%B: warning: Endian mismatch with previous modules."), ibfd
);
6018 bfd_set_error (bfd_error_bad_value
);
6022 in_version
= elf_elfheader (ibfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6023 if (in_version
== E_NDS32_ELF_VER_1_2
)
6025 (*_bfd_error_handler
)
6026 (_("%B: warning: Older version of object file encountered, "
6027 "Please recompile with current tool chain."), ibfd
);
6030 /* We may need to merge V1 and V2 arch object files to V2. */
6031 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6032 != (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6034 /* Need to convert version. */
6035 if ((elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6036 == E_NDS_ARCH_STAR_RESERVED
)
6038 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6040 else if ((elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
) == E_NDS_ARCH_STAR_V0_9
6041 || (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
)
6042 > (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
))
6044 elf_elfheader (obfd
)->e_flags
=
6045 convert_e_flags (elf_elfheader (obfd
)->e_flags
,
6046 (elf_elfheader (ibfd
)->e_flags
& EF_NDS_ARCH
));
6050 elf_elfheader (ibfd
)->e_flags
=
6051 convert_e_flags (elf_elfheader (ibfd
)->e_flags
,
6052 (elf_elfheader (obfd
)->e_flags
& EF_NDS_ARCH
));
6056 /* Extract some flags. */
6057 in_flags
= elf_elfheader (ibfd
)->e_flags
6058 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6059 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6061 /* The following flags need special treatment. */
6062 in_16regs
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6063 in_no_mac
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6064 in_fpu_config
= elf_elfheader (ibfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6066 /* Extract some flags. */
6067 out_flags
= elf_elfheader (obfd
)->e_flags
6068 & (~(E_NDS32_HAS_REDUCED_REGS
| EF_NDS32_ELF_VERSION
6069 | E_NDS32_HAS_NO_MAC_INST
| E_NDS32_FPU_REG_CONF
));
6071 /* The following flags need special treatment. */
6072 out_16regs
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_REDUCED_REGS
;
6073 out_no_mac
= elf_elfheader (obfd
)->e_flags
& E_NDS32_HAS_NO_MAC_INST
;
6074 out_fpu_config
= elf_elfheader (obfd
)->e_flags
& E_NDS32_FPU_REG_CONF
;
6075 out_version
= elf_elfheader (obfd
)->e_flags
& EF_NDS32_ELF_VERSION
;
6076 if (!elf_flags_init (obfd
))
6078 /* If the input is the default architecture then do not
6079 bother setting the flags for the output architecture,
6080 instead allow future merges to do this. If no future
6081 merges ever set these flags then they will retain their
6082 unitialised values, which surprise surprise, correspond
6083 to the default values. */
6084 if (bfd_get_arch_info (ibfd
)->the_default
)
6087 elf_flags_init (obfd
) = TRUE
;
6088 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
6090 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
6091 && bfd_get_arch_info (obfd
)->the_default
)
6093 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
6094 bfd_get_mach (ibfd
));
6100 /* Check flag compatibility. */
6101 if ((in_flags
& EF_NDS_ABI
) != (out_flags
& EF_NDS_ABI
))
6103 (*_bfd_error_handler
)
6104 (_("%B: error: ABI mismatch with previous modules."), ibfd
);
6106 bfd_set_error (bfd_error_bad_value
);
6110 if ((in_flags
& EF_NDS_ARCH
) != (out_flags
& EF_NDS_ARCH
))
6112 if (((in_flags
& EF_NDS_ARCH
) != E_N1_ARCH
))
6114 (*_bfd_error_handler
)
6115 (_("%B: error: Instruction set mismatch with previous modules."), ibfd
);
6117 bfd_set_error (bfd_error_bad_value
);
6122 /* When linking with V1.2 and V1.3 objects together the output is V1.2.
6123 and perf ext1 and DIV are mergerd to perf ext1. */
6124 if (in_version
== E_NDS32_ELF_VER_1_2
|| out_version
== E_NDS32_ELF_VER_1_2
)
6126 elf_elfheader (obfd
)->e_flags
=
6127 (in_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6128 | (out_flags
& (~(E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6129 | (((in_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6130 ? E_NDS32_HAS_EXT_INST
: 0)
6131 | (((out_flags
& (E_NDS32_HAS_EXT_INST
| E_NDS32_HAS_DIV_INST
)))
6132 ? E_NDS32_HAS_EXT_INST
: 0)
6133 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6134 | ((in_version
> out_version
) ? out_version
: in_version
);
6138 if (in_version
!= out_version
)
6139 (*_bfd_error_handler
) (_("%B: warning: Incompatible elf-versions %s and %s."),
6140 ibfd
, nds32_elfver_strtab
[out_version
],
6141 nds32_elfver_strtab
[in_version
]);
6143 elf_elfheader (obfd
)->e_flags
= in_flags
| out_flags
6144 | (in_16regs
& out_16regs
) | (in_no_mac
& out_no_mac
)
6145 | (in_fpu_config
> out_fpu_config
? in_fpu_config
: out_fpu_config
)
6146 | (in_version
> out_version
? out_version
: in_version
);
6152 /* Display the flags field. */
6155 nds32_elf_print_private_bfd_data (bfd
*abfd
, void *ptr
)
6157 FILE *file
= (FILE *) ptr
;
6159 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
6161 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
6163 fprintf (file
, _("private flags = %lx"), elf_elfheader (abfd
)->e_flags
);
6165 switch (elf_elfheader (abfd
)->e_flags
& EF_NDS_ARCH
)
6169 fprintf (file
, _(": n1 instructions"));
6172 fprintf (file
, _(": n1h instructions"));
6182 nds32_elf_action_discarded (asection
*sec
)
6186 (".gcc_except_table", sec
->name
, sizeof (".gcc_except_table") - 1) == 0)
6189 return _bfd_elf_default_action_discarded (sec
);
6193 nds32_elf_gc_mark_hook (asection
*sec
, struct bfd_link_info
*info
,
6194 Elf_Internal_Rela
*rel
, struct elf_link_hash_entry
*h
,
6195 Elf_Internal_Sym
*sym
)
6198 switch (ELF32_R_TYPE (rel
->r_info
))
6200 case R_NDS32_GNU_VTINHERIT
:
6201 case R_NDS32_GNU_VTENTRY
:
6202 case R_NDS32_RELA_GNU_VTINHERIT
:
6203 case R_NDS32_RELA_GNU_VTENTRY
:
6207 return _bfd_elf_gc_mark_hook (sec
, info
, rel
, h
, sym
);
6211 nds32_elf_gc_sweep_hook (bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
6212 const Elf_Internal_Rela
*relocs
)
6214 /* Update the got entry reference counts for the section being removed. */
6215 Elf_Internal_Shdr
*symtab_hdr
;
6216 struct elf_link_hash_entry
**sym_hashes
;
6217 bfd_signed_vma
*local_got_refcounts
;
6218 const Elf_Internal_Rela
*rel
, *relend
;
6220 elf_section_data (sec
)->local_dynrel
= NULL
;
6222 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6223 sym_hashes
= elf_sym_hashes (abfd
);
6224 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6226 relend
= relocs
+ sec
->reloc_count
;
6227 for (rel
= relocs
; rel
< relend
; rel
++)
6229 unsigned long r_symndx
;
6230 struct elf_link_hash_entry
*h
= NULL
;
6232 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6233 if (r_symndx
>= symtab_hdr
->sh_info
)
6235 /* External symbol. */
6236 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6237 while (h
->root
.type
== bfd_link_hash_indirect
6238 || h
->root
.type
== bfd_link_hash_warning
)
6239 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6242 switch (ELF32_R_TYPE (rel
->r_info
))
6244 case R_NDS32_GOT_HI20
:
6245 case R_NDS32_GOT_LO12
:
6246 case R_NDS32_GOT_LO15
:
6247 case R_NDS32_GOT_LO19
:
6248 case R_NDS32_GOT17S2_RELA
:
6249 case R_NDS32_GOT15S2_RELA
:
6250 case R_NDS32_GOTOFF
:
6251 case R_NDS32_GOTOFF_HI20
:
6252 case R_NDS32_GOTOFF_LO12
:
6253 case R_NDS32_GOTOFF_LO15
:
6254 case R_NDS32_GOTOFF_LO19
:
6256 case R_NDS32_GOTPC_HI20
:
6257 case R_NDS32_GOTPC_LO12
:
6258 case R_NDS32_GOTPC20
:
6261 if (h
->got
.refcount
> 0)
6266 if (local_got_refcounts
&& local_got_refcounts
[r_symndx
] > 0)
6267 local_got_refcounts
[r_symndx
]--;
6271 case R_NDS32_16_RELA
:
6272 case R_NDS32_20_RELA
:
6273 case R_NDS32_5_RELA
:
6274 case R_NDS32_32_RELA
:
6275 case R_NDS32_HI20_RELA
:
6276 case R_NDS32_LO12S3_RELA
:
6277 case R_NDS32_LO12S2_RELA
:
6278 case R_NDS32_LO12S2_DP_RELA
:
6279 case R_NDS32_LO12S2_SP_RELA
:
6280 case R_NDS32_LO12S1_RELA
:
6281 case R_NDS32_LO12S0_RELA
:
6282 case R_NDS32_LO12S0_ORI_RELA
:
6283 case R_NDS32_SDA16S3_RELA
:
6284 case R_NDS32_SDA17S2_RELA
:
6285 case R_NDS32_SDA18S1_RELA
:
6286 case R_NDS32_SDA19S0_RELA
:
6287 case R_NDS32_SDA15S3_RELA
:
6288 case R_NDS32_SDA15S2_RELA
:
6289 case R_NDS32_SDA12S2_DP_RELA
:
6290 case R_NDS32_SDA12S2_SP_RELA
:
6291 case R_NDS32_SDA15S1_RELA
:
6292 case R_NDS32_SDA15S0_RELA
:
6293 case R_NDS32_SDA_FP7U2_RELA
:
6294 case R_NDS32_15_PCREL_RELA
:
6295 case R_NDS32_17_PCREL_RELA
:
6296 case R_NDS32_25_PCREL_RELA
:
6299 struct elf_nds32_link_hash_entry
*eh
;
6300 struct elf_nds32_dyn_relocs
**pp
;
6301 struct elf_nds32_dyn_relocs
*p
;
6303 if (!bfd_link_pic (info
) && h
->plt
.refcount
> 0)
6304 h
->plt
.refcount
-= 1;
6306 eh
= (struct elf_nds32_link_hash_entry
*) h
;
6308 for (pp
= &eh
->dyn_relocs
; (p
= *pp
) != NULL
; pp
= &p
->next
)
6311 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6312 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
6313 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
6323 case R_NDS32_9_PLTREL
:
6324 case R_NDS32_25_PLTREL
:
6327 if (h
->plt
.refcount
> 0)
6340 /* Look through the relocs for a section during the first phase.
6341 Since we don't do .gots or .plts, we just need to consider the
6342 virtual table relocs for gc. */
6345 nds32_elf_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
6346 asection
*sec
, const Elf_Internal_Rela
*relocs
)
6348 Elf_Internal_Shdr
*symtab_hdr
;
6349 struct elf_link_hash_entry
**sym_hashes
, **sym_hashes_end
;
6350 const Elf_Internal_Rela
*rel
;
6351 const Elf_Internal_Rela
*rel_end
;
6352 struct elf_nds32_link_hash_table
*htab
;
6354 asection
*sreloc
= NULL
;
6356 if (bfd_link_relocatable (info
))
6359 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
6360 sym_hashes
= elf_sym_hashes (abfd
);
6362 sym_hashes
+ symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
);
6363 if (!elf_bad_symtab (abfd
))
6364 sym_hashes_end
-= symtab_hdr
->sh_info
;
6366 htab
= nds32_elf_hash_table (info
);
6367 dynobj
= htab
->root
.dynobj
;
6369 rel_end
= relocs
+ sec
->reloc_count
;
6370 for (rel
= relocs
; rel
< rel_end
; rel
++)
6372 enum elf_nds32_reloc_type r_type
;
6373 struct elf_link_hash_entry
*h
;
6374 unsigned long r_symndx
;
6375 int tls_type
, old_tls_type
;
6377 r_symndx
= ELF32_R_SYM (rel
->r_info
);
6378 r_type
= ELF32_R_TYPE (rel
->r_info
);
6379 if (r_symndx
< symtab_hdr
->sh_info
)
6383 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
6384 while (h
->root
.type
== bfd_link_hash_indirect
6385 || h
->root
.type
== bfd_link_hash_warning
)
6386 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6389 /* Some relocs require a global offset table. We create
6390 got section here, since these relocation need got section
6391 and it is not created yet. */
6392 if (htab
->sgot
== NULL
)
6396 case R_NDS32_GOT_HI20
:
6397 case R_NDS32_GOT_LO12
:
6398 case R_NDS32_GOT_LO15
:
6399 case R_NDS32_GOT_LO19
:
6400 case R_NDS32_GOT17S2_RELA
:
6401 case R_NDS32_GOT15S2_RELA
:
6402 case R_NDS32_GOTOFF
:
6403 case R_NDS32_GOTOFF_HI20
:
6404 case R_NDS32_GOTOFF_LO12
:
6405 case R_NDS32_GOTOFF_LO15
:
6406 case R_NDS32_GOTOFF_LO19
:
6407 case R_NDS32_GOTPC20
:
6408 case R_NDS32_GOTPC_HI20
:
6409 case R_NDS32_GOTPC_LO12
:
6411 case R_NDS32_TLS_IE_HI20
:
6412 case R_NDS32_TLS_IE_LO12S2
:
6414 htab
->root
.dynobj
= dynobj
= abfd
;
6415 if (!create_got_section (dynobj
, info
))
6424 switch ((int) r_type
)
6426 case R_NDS32_GOT_HI20
:
6427 case R_NDS32_GOT_LO12
:
6428 case R_NDS32_GOT_LO15
:
6429 case R_NDS32_GOT_LO19
:
6431 case R_NDS32_TLS_IE_HI20
:
6432 case R_NDS32_TLS_IE_LO12S2
:
6435 case R_NDS32_TLS_IE_HI20
:
6436 case R_NDS32_TLS_IE_LO12S2
:
6437 tls_type
= GOT_TLS_IE
;
6440 tls_type
= GOT_NORMAL
;
6445 old_tls_type
= elf32_nds32_hash_entry (h
)->tls_type
;
6446 h
->got
.refcount
+= 1;
6450 bfd_signed_vma
*local_got_refcounts
;
6452 /* This is a global offset table entry for a local
6454 local_got_refcounts
= elf_local_got_refcounts (abfd
);
6455 if (local_got_refcounts
== NULL
)
6459 size
= symtab_hdr
->sh_info
;
6460 size
*= sizeof (bfd_signed_vma
);
6461 local_got_refcounts
= (bfd_signed_vma
*) bfd_zalloc (abfd
, size
);
6462 if (local_got_refcounts
== NULL
)
6464 elf_local_got_refcounts (abfd
) = local_got_refcounts
;
6466 local_got_refcounts
[r_symndx
] += 1;
6467 old_tls_type
= elf32_nds32_local_got_tls_type (abfd
)[r_symndx
];
6470 /* We will already have issued an error message if there
6471 is a TLS/non-TLS mismatch, based on the symbol
6472 type. So just combine any TLS types needed. */
6473 if (old_tls_type
!= GOT_UNKNOWN
&& old_tls_type
!= GOT_NORMAL
6474 && tls_type
!= GOT_NORMAL
)
6475 tls_type
|= old_tls_type
;
6477 if (old_tls_type
!= tls_type
)
6480 elf32_nds32_hash_entry (h
)->tls_type
= tls_type
;
6482 elf32_nds32_local_got_tls_type (abfd
)[r_symndx
] = tls_type
;
6485 case R_NDS32_9_PLTREL
:
6486 case R_NDS32_25_PLTREL
:
6487 case R_NDS32_PLTREL_HI20
:
6488 case R_NDS32_PLTREL_LO12
:
6489 case R_NDS32_PLT_GOTREL_HI20
:
6490 case R_NDS32_PLT_GOTREL_LO12
:
6491 case R_NDS32_PLT_GOTREL_LO15
:
6492 case R_NDS32_PLT_GOTREL_LO19
:
6493 case R_NDS32_PLT_GOTREL_LO20
:
6495 /* This symbol requires a procedure linkage table entry. We
6496 actually build the entry in adjust_dynamic_symbol,
6497 because this might be a case of linking PIC code without
6498 linking in any dynamic objects, in which case we don't
6499 need to generate a procedure linkage table after all. */
6501 /* If this is a local symbol, we resolve it directly without
6502 creating a procedure linkage table entry. */
6506 if (h
->forced_local
)
6509 elf32_nds32_hash_entry (h
)->tls_type
= GOT_NORMAL
;
6511 h
->plt
.refcount
+= 1;
6514 case R_NDS32_16_RELA
:
6515 case R_NDS32_20_RELA
:
6516 case R_NDS32_5_RELA
:
6517 case R_NDS32_32_RELA
:
6518 case R_NDS32_HI20_RELA
:
6519 case R_NDS32_LO12S3_RELA
:
6520 case R_NDS32_LO12S2_RELA
:
6521 case R_NDS32_LO12S2_DP_RELA
:
6522 case R_NDS32_LO12S2_SP_RELA
:
6523 case R_NDS32_LO12S1_RELA
:
6524 case R_NDS32_LO12S0_RELA
:
6525 case R_NDS32_LO12S0_ORI_RELA
:
6526 case R_NDS32_SDA16S3_RELA
:
6527 case R_NDS32_SDA17S2_RELA
:
6528 case R_NDS32_SDA18S1_RELA
:
6529 case R_NDS32_SDA19S0_RELA
:
6530 case R_NDS32_SDA15S3_RELA
:
6531 case R_NDS32_SDA15S2_RELA
:
6532 case R_NDS32_SDA12S2_DP_RELA
:
6533 case R_NDS32_SDA12S2_SP_RELA
:
6534 case R_NDS32_SDA15S1_RELA
:
6535 case R_NDS32_SDA15S0_RELA
:
6536 case R_NDS32_SDA_FP7U2_RELA
:
6537 case R_NDS32_15_PCREL_RELA
:
6538 case R_NDS32_17_PCREL_RELA
:
6539 case R_NDS32_25_PCREL_RELA
:
6541 if (h
!= NULL
&& !bfd_link_pic (info
))
6544 h
->plt
.refcount
+= 1;
6547 /* If we are creating a shared library, and this is a reloc against
6548 a global symbol, or a non PC relative reloc against a local
6549 symbol, then we need to copy the reloc into the shared library.
6550 However, if we are linking with -Bsymbolic, we do not need to
6551 copy a reloc against a global symbol which is defined in an
6552 object we are including in the link (i.e., DEF_REGULAR is set).
6553 At this point we have not seen all the input files, so it is
6554 possible that DEF_REGULAR is not set now but will be set later
6555 (it is never cleared). We account for that possibility below by
6556 storing information in the dyn_relocs field of the hash table
6557 entry. A similar situation occurs when creating shared libraries
6558 and symbol visibility changes render the symbol local.
6560 If on the other hand, we are creating an executable, we may need
6561 to keep relocations for symbols satisfied by a dynamic library
6562 if we manage to avoid copy relocs for the symbol. */
6563 if ((bfd_link_pic (info
)
6564 && (sec
->flags
& SEC_ALLOC
) != 0
6565 && ((r_type
!= R_NDS32_25_PCREL_RELA
6566 && r_type
!= R_NDS32_15_PCREL_RELA
6567 && r_type
!= R_NDS32_17_PCREL_RELA
6568 && !(r_type
== R_NDS32_32_RELA
6569 && strcmp (sec
->name
, ".eh_frame") == 0))
6572 || h
->root
.type
== bfd_link_hash_defweak
6573 || !h
->def_regular
))))
6574 || (!bfd_link_pic (info
)
6575 && (sec
->flags
& SEC_ALLOC
) != 0
6577 && (h
->root
.type
== bfd_link_hash_defweak
6578 || !h
->def_regular
)))
6580 struct elf_nds32_dyn_relocs
*p
;
6581 struct elf_nds32_dyn_relocs
**head
;
6584 htab
->root
.dynobj
= dynobj
= abfd
;
6586 /* When creating a shared object, we must copy these
6587 relocs into the output file. We create a reloc
6588 section in dynobj and make room for the reloc. */
6593 name
= bfd_elf_string_from_elf_section
6594 (abfd
, elf_elfheader (abfd
)->e_shstrndx
,
6595 elf_section_data (sec
)->rela
.hdr
->sh_name
);
6599 BFD_ASSERT (strncmp (name
, ".rela", 5) == 0
6600 && strcmp (bfd_get_section_name (abfd
, sec
),
6603 sreloc
= bfd_get_section_by_name (dynobj
, name
);
6608 sreloc
= bfd_make_section (dynobj
, name
);
6609 flags
= (SEC_HAS_CONTENTS
| SEC_READONLY
6610 | SEC_IN_MEMORY
| SEC_LINKER_CREATED
);
6611 if ((sec
->flags
& SEC_ALLOC
) != 0)
6612 flags
|= SEC_ALLOC
| SEC_LOAD
;
6614 || !bfd_set_section_flags (dynobj
, sreloc
, flags
)
6615 || !bfd_set_section_alignment (dynobj
, sreloc
, 2))
6618 elf_section_type (sreloc
) = SHT_RELA
;
6620 elf_section_data (sec
)->sreloc
= sreloc
;
6623 /* If this is a global symbol, we count the number of
6624 relocations we need for this symbol. */
6626 head
= &((struct elf_nds32_link_hash_entry
*) h
)->dyn_relocs
;
6631 Elf_Internal_Sym
*isym
;
6632 isym
= bfd_sym_from_r_symndx (&htab
->sym_cache
, abfd
, r_symndx
);
6636 /* Track dynamic relocs needed for local syms too. */
6637 s
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6641 head
= ((struct elf_nds32_dyn_relocs
**)
6642 &elf_section_data (s
)->local_dynrel
);
6646 if (p
== NULL
|| p
->sec
!= sec
)
6648 bfd_size_type amt
= sizeof (*p
);
6649 p
= (struct elf_nds32_dyn_relocs
*) bfd_alloc (dynobj
, amt
);
6660 if (ELF32_R_TYPE (rel
->r_info
) == R_NDS32_25_PCREL_RELA
6661 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_15_PCREL_RELA
6662 || ELF32_R_TYPE (rel
->r_info
) == R_NDS32_17_PCREL_RELA
)
6667 /* This relocation describes the C++ object vtable hierarchy.
6668 Reconstruct it for later use during GC. */
6669 case R_NDS32_RELA_GNU_VTINHERIT
:
6670 case R_NDS32_GNU_VTINHERIT
:
6671 if (!bfd_elf_gc_record_vtinherit (abfd
, sec
, h
, rel
->r_offset
))
6675 /* This relocation describes which C++ vtable entries are actually
6676 used. Record for later use during GC. */
6677 case R_NDS32_GNU_VTENTRY
:
6678 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_offset
))
6681 case R_NDS32_RELA_GNU_VTENTRY
:
6682 if (!bfd_elf_gc_record_vtentry (abfd
, sec
, h
, rel
->r_addend
))
6691 /* Write VAL in uleb128 format to P, returning a pointer to the
6693 This code is copied from elf-attr.c. */
6696 write_uleb128 (bfd_byte
*p
, unsigned int val
)
6711 static bfd_signed_vma
6712 calculate_offset (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
6713 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
,
6714 int *pic_ext_target
)
6716 bfd_signed_vma foff
;
6717 bfd_vma symval
, addend
;
6720 /* Get the value of the symbol referred to by the reloc. */
6721 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6723 Elf_Internal_Sym
*isym
;
6725 /* A local symbol. */
6726 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6728 if (isym
->st_shndx
== SHN_UNDEF
)
6729 sym_sec
= bfd_und_section_ptr
;
6730 else if (isym
->st_shndx
== SHN_ABS
)
6731 sym_sec
= bfd_abs_section_ptr
;
6732 else if (isym
->st_shndx
== SHN_COMMON
)
6733 sym_sec
= bfd_com_section_ptr
;
6735 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6736 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6737 + sym_sec
->output_offset
;
6742 struct elf_link_hash_entry
*h
;
6745 /* An external symbol. */
6746 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6747 h
= elf_sym_hashes (abfd
)[indx
];
6748 BFD_ASSERT (h
!= NULL
);
6750 if (h
->root
.type
!= bfd_link_hash_defined
6751 && h
->root
.type
!= bfd_link_hash_defweak
)
6752 /* This appears to be a reference to an undefined
6753 symbol. Just ignore it--it will be caught by the
6754 regular reloc processing. */
6756 owner
= h
->root
.u
.def
.section
->owner
;
6757 if (owner
&& (elf_elfheader (owner
)->e_flags
& E_NDS32_HAS_PIC
))
6758 *pic_ext_target
= 1;
6760 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
6762 sym_sec
= h
->root
.u
.def
.section
;
6763 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
,
6764 elf_section_data (sym_sec
)->sec_info
,
6765 h
->root
.u
.def
.value
);
6766 symval
= symval
+ sym_sec
->output_section
->vma
6767 + sym_sec
->output_offset
;
6770 symval
= (h
->root
.u
.def
.value
6771 + h
->root
.u
.def
.section
->output_section
->vma
6772 + h
->root
.u
.def
.section
->output_offset
);
6775 addend
= irel
->r_addend
;
6777 foff
= (symval
+ addend
6778 - (irel
->r_offset
+ sec
->output_section
->vma
+ sec
->output_offset
));
6783 calculate_plt_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
6784 Elf_Internal_Sym
*isymbuf
,
6785 Elf_Internal_Rela
*irel
,
6786 Elf_Internal_Shdr
*symtab_hdr
)
6790 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
6792 Elf_Internal_Sym
*isym
;
6794 /* A local symbol. */
6795 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
6797 if (isym
->st_shndx
== SHN_UNDEF
)
6798 sym_sec
= bfd_und_section_ptr
;
6799 else if (isym
->st_shndx
== SHN_ABS
)
6800 sym_sec
= bfd_abs_section_ptr
;
6801 else if (isym
->st_shndx
== SHN_COMMON
)
6802 sym_sec
= bfd_com_section_ptr
;
6804 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
6805 symval
= isym
->st_value
+ sym_sec
->output_section
->vma
6806 + sym_sec
->output_offset
;
6811 struct elf_link_hash_entry
*h
;
6812 struct elf_nds32_link_hash_table
*htab
;
6815 /* An external symbol. */
6816 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
6817 h
= elf_sym_hashes (abfd
)[indx
];
6818 BFD_ASSERT (h
!= NULL
);
6819 htab
= nds32_elf_hash_table (link_info
);
6822 while (h
->root
.type
== bfd_link_hash_indirect
6823 || h
->root
.type
== bfd_link_hash_warning
)
6824 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
6826 if (h
->plt
.offset
== (bfd_vma
) - 1)
6828 if (h
->root
.type
!= bfd_link_hash_defined
6829 && h
->root
.type
!= bfd_link_hash_defweak
)
6830 /* This appears to be a reference to an undefined
6831 * symbol. Just ignore it--it will be caught by the
6832 * regular reloc processing. */
6834 symval
= (h
->root
.u
.def
.value
6835 + h
->root
.u
.def
.section
->output_section
->vma
6836 + h
->root
.u
.def
.section
->output_offset
);
6839 symval
= splt
->output_section
->vma
+ h
->plt
.offset
;
6845 static bfd_signed_vma
6846 calculate_plt_offset (bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
6847 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Rela
*irel
,
6848 Elf_Internal_Shdr
*symtab_hdr
)
6851 if ((foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
6855 return foff
- (irel
->r_offset
6856 + sec
->output_section
->vma
+ sec
->output_offset
);
6859 /* Convert a 32-bit instruction to 16-bit one.
6860 INSN is the input 32-bit instruction, INSN16 is the output 16-bit
6861 instruction. If INSN_TYPE is not NULL, it the CGEN instruction
6862 type of INSN16. Return 1 if successful. */
6865 nds32_convert_32_to_16_alu1 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
6868 uint16_t insn16
= 0;
6870 unsigned long mach
= bfd_get_mach (abfd
);
6872 if (N32_SH5 (insn
) != 0)
6875 switch (N32_SUB5 (insn
))
6877 case N32_ALU1_ADD_SLLI
:
6878 case N32_ALU1_ADD_SRLI
:
6879 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6881 insn16
= N16_TYPE333 (ADD333
, N32_RT5 (insn
), N32_RA5 (insn
),
6883 insn_type
= NDS32_INSN_ADD333
;
6885 else if (N32_IS_RT4 (insn
))
6887 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6888 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RB5 (insn
));
6889 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6890 insn16
= N16_TYPE45 (ADD45
, N32_RT54 (insn
), N32_RA5 (insn
));
6891 insn_type
= NDS32_INSN_ADD45
;
6895 case N32_ALU1_SUB_SLLI
:
6896 case N32_ALU1_SUB_SRLI
:
6897 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IS_RB3 (insn
))
6899 insn16
= N16_TYPE333 (SUB333
, N32_RT5 (insn
), N32_RA5 (insn
),
6901 insn_type
= NDS32_INSN_SUB333
;
6903 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6905 insn16
= N16_TYPE45 (SUB45
, N32_RT54 (insn
), N32_RB5 (insn
));
6906 insn_type
= NDS32_INSN_SUB45
;
6910 case N32_ALU1_AND_SLLI
:
6911 case N32_ALU1_AND_SRLI
:
6912 /* and $rt, $rt, $rb -> and33 for v3, v3m. */
6913 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6914 && N32_IS_RB3 (insn
))
6916 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6917 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RB5 (insn
));
6918 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6919 insn16
= N16_MISC33 (AND33
, N32_RT5 (insn
), N32_RA5 (insn
));
6921 insn_type
= NDS32_INSN_AND33
;
6925 case N32_ALU1_XOR_SLLI
:
6926 case N32_ALU1_XOR_SRLI
:
6927 /* xor $rt, $rt, $rb -> xor33 for v3, v3m. */
6928 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6929 && N32_IS_RB3 (insn
))
6931 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6932 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6933 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6934 insn16
= N16_MISC33 (XOR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6936 insn_type
= NDS32_INSN_XOR33
;
6940 case N32_ALU1_OR_SLLI
:
6941 case N32_ALU1_OR_SRLI
:
6942 /* or $rt, $rt, $rb -> or33 for v3, v3m. */
6943 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
6944 && N32_IS_RB3 (insn
))
6946 if (N32_RT5 (insn
) == N32_RA5 (insn
))
6947 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RB5 (insn
));
6948 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
6949 insn16
= N16_MISC33 (OR33
, N32_RT5 (insn
), N32_RA5 (insn
));
6951 insn_type
= NDS32_INSN_OR33
;
6955 /* nor $rt, $ra, $ra -> not33 for v3, v3m. */
6956 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RB3 (insn
)
6957 && N32_RA5 (insn
) == N32_RB5 (insn
))
6959 insn16
= N16_MISC33 (NOT33
, N32_RT5 (insn
), N32_RA5 (insn
));
6960 insn_type
= NDS32_INSN_NOT33
;
6964 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6966 insn16
= N16_TYPE45 (SRAI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6967 insn_type
= NDS32_INSN_SRAI45
;
6972 if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
))
6974 insn16
= N16_TYPE45 (SRLI45
, N32_RT54 (insn
), N32_UB5 (insn
));
6975 insn_type
= NDS32_INSN_SRLI45
;
6980 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_UB5 (insn
) < 8)
6982 insn16
= N16_TYPE333 (SLLI333
, N32_RT5 (insn
), N32_RA5 (insn
),
6984 insn_type
= NDS32_INSN_SLLI333
;
6989 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
6991 insn16
= N16_BFMI333 (ZEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
6992 insn_type
= NDS32_INSN_ZEH33
;
6997 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
6999 insn16
= N16_BFMI333 (SEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7000 insn_type
= NDS32_INSN_SEB33
;
7005 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7007 insn16
= N16_BFMI333 (SEH33
, N32_RT5 (insn
), N32_RA5 (insn
));
7008 insn_type
= NDS32_INSN_SEH33
;
7013 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7016 insn16
= N16_TYPE45 (SLT45
, N32_RA54 (insn
), N32_RB5 (insn
));
7017 insn_type
= NDS32_INSN_SLT45
;
7022 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
))
7025 insn16
= N16_TYPE45 (SLTS45
, N32_RA54 (insn
), N32_RB5 (insn
));
7026 insn_type
= NDS32_INSN_SLTS45
;
7031 if ((insn16
& 0x8000) == 0)
7037 *pinsn_type
= insn_type
;
7042 nds32_convert_32_to_16_alu2 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7045 uint16_t insn16
= 0;
7047 unsigned long mach
= bfd_get_mach (abfd
);
7049 /* TODO: bset, bclr, btgl, btst. */
7050 if (__GF (insn
, 6, 4) != 0)
7053 switch (N32_IMMU (insn
, 6))
7056 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7057 && N32_IS_RB3 (insn
))
7059 if (N32_RT5 (insn
) == N32_RA5 (insn
))
7060 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RB5 (insn
));
7061 else if (N32_RT5 (insn
) == N32_RB5 (insn
))
7062 insn16
= N16_MISC33 (MUL33
, N32_RT5 (insn
), N32_RA5 (insn
));
7064 insn_type
= NDS32_INSN_MUL33
;
7068 if ((insn16
& 0x8000) == 0)
7074 *pinsn_type
= insn_type
;
7079 nds32_convert_32_to_16 (bfd
*abfd
, uint32_t insn
, uint16_t *pinsn16
,
7083 uint16_t insn16
= 0;
7085 unsigned long mach
= bfd_get_mach (abfd
);
7087 /* Decode 32-bit instruction. */
7088 if (insn
& 0x80000000)
7090 /* Not 32-bit insn. */
7094 op6
= N32_OP6 (insn
);
7096 /* Convert it to 16-bit instruction. */
7100 if (IS_WITHIN_S (N32_IMM20S (insn
), 5))
7102 insn16
= N16_TYPE55 (MOVI55
, N32_RT5 (insn
), N32_IMM20S (insn
));
7103 insn_type
= NDS32_INSN_MOVI55
;
7105 else if (mach
>= MACH_V3
&& N32_IMM20S (insn
) >= 16
7106 && N32_IMM20S (insn
) < 48 && N32_IS_RT4 (insn
))
7108 insn16
= N16_TYPE45 (MOVPI45
, N32_RT54 (insn
),
7109 N32_IMM20S (insn
) - 16);
7110 insn_type
= NDS32_INSN_MOVPI45
;
7115 if (N32_IMM15S (insn
) == 0)
7117 /* Do not convert `addi $sp, $sp, 0' to `mov55 $sp, $sp',
7118 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7120 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7122 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7123 insn_type
= NDS32_INSN_MOV55
;
7126 else if (N32_IMM15S (insn
) > 0)
7128 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) < 8)
7130 insn16
= N16_TYPE333 (ADDI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7132 insn_type
= NDS32_INSN_ADDI333
;
7134 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7135 && N32_IMM15S (insn
) < 32)
7137 insn16
= N16_TYPE45 (ADDI45
, N32_RT54 (insn
), N32_IMM15S (insn
));
7138 insn_type
= NDS32_INSN_ADDI45
;
7140 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7141 && N32_RT5 (insn
) == N32_RA5 (insn
)
7142 && N32_IMM15S (insn
) < 512)
7144 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7145 insn_type
= NDS32_INSN_ADDI10_SP
;
7147 else if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7148 && N32_RA5 (insn
) == REG_SP
&& N32_IMM15S (insn
) < 256
7149 && (N32_IMM15S (insn
) % 4 == 0))
7151 insn16
= N16_TYPE36 (ADDRI36_SP
, N32_RT5 (insn
),
7152 N32_IMM15S (insn
) >> 2);
7153 insn_type
= NDS32_INSN_ADDRI36_SP
;
7159 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) > -8)
7161 insn16
= N16_TYPE333 (SUBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7162 0 - N32_IMM15S (insn
));
7163 insn_type
= NDS32_INSN_SUBI333
;
7165 else if (N32_IS_RT4 (insn
) && N32_RT5 (insn
) == N32_RA5 (insn
)
7166 && N32_IMM15S (insn
) > -32)
7168 insn16
= N16_TYPE45 (SUBI45
, N32_RT54 (insn
),
7169 0 - N32_IMM15S (insn
));
7170 insn_type
= NDS32_INSN_SUBI45
;
7172 else if (mach
>= MACH_V2
&& N32_RT5 (insn
) == REG_SP
7173 && N32_RT5 (insn
) == N32_RA5 (insn
)
7174 && N32_IMM15S (insn
) >= -512)
7176 insn16
= N16_TYPE10 (ADDI10S
, N32_IMM15S (insn
));
7177 insn_type
= NDS32_INSN_ADDI10_SP
;
7183 if (N32_IMM15S (insn
) == 0)
7185 /* Do not convert `ori $sp, $sp, 0' to `mov55 $sp, $sp',
7186 because `mov55 $sp, $sp' is ifret16 in V3 ISA. */
7188 || N32_RT5 (insn
) != REG_SP
|| N32_RA5 (insn
) != REG_SP
)
7190 insn16
= N16_TYPE55 (MOV55
, N32_RT5 (insn
), N32_RA5 (insn
));
7191 insn_type
= NDS32_INSN_MOV55
;
7197 if (mach
>= MACH_V3
&& N32_IS_RT3 (insn
)
7198 && N32_IS_RA3 (insn
) && N32_IMM15S (insn
) == 0)
7200 insn16
= N16_MISC33 (NEG33
, N32_RT5 (insn
), N32_RA5 (insn
));
7201 insn_type
= NDS32_INSN_NEG33
;
7206 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
))
7208 if (N32_IMM15U (insn
) == 1)
7210 insn16
= N16_BFMI333 (XLSB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7211 insn_type
= NDS32_INSN_XLSB33
;
7213 else if (N32_IMM15U (insn
) == 0x7ff)
7215 insn16
= N16_BFMI333 (X11B33
, N32_RT5 (insn
), N32_RA5 (insn
));
7216 insn_type
= NDS32_INSN_X11B33
;
7218 else if (N32_IMM15U (insn
) == 0xff)
7220 insn16
= N16_BFMI333 (ZEB33
, N32_RT5 (insn
), N32_RA5 (insn
));
7221 insn_type
= NDS32_INSN_ZEB33
;
7223 else if (mach
>= MACH_V3
&& N32_RT5 (insn
) == N32_RA5 (insn
)
7224 && N32_IMM15U (insn
) < 256)
7226 int imm15u
= N32_IMM15U (insn
);
7228 if (__builtin_popcount (imm15u
) == 1)
7231 int imm3u
= __builtin_ctz (imm15u
);
7233 insn16
= N16_BFMI333 (BMSKI33
, N32_RT5 (insn
), imm3u
);
7234 insn_type
= NDS32_INSN_BMSKI33
;
7236 else if (imm15u
!= 0 && __builtin_popcount (imm15u
+ 1) == 1)
7239 int imm3u
= __builtin_ctz (imm15u
+ 1) - 1;
7241 insn16
= N16_BFMI333 (FEXTI33
, N32_RT5 (insn
), imm3u
);
7242 insn_type
= NDS32_INSN_FEXTI33
;
7249 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7250 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7252 insn16
= N16_TYPE45 (SLTI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7253 insn_type
= NDS32_INSN_SLTI45
;
7258 if (N32_RT5 (insn
) == REG_R15
&& N32_IS_RA4 (insn
)
7259 && IS_WITHIN_U (N32_IMM15S (insn
), 5))
7261 insn16
= N16_TYPE45 (SLTSI45
, N32_RA54 (insn
), N32_IMM15S (insn
));
7262 insn_type
= NDS32_INSN_SLTSI45
;
7267 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7269 insn16
= N16_TYPE45 (LWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7270 insn_type
= NDS32_INSN_LWI450
;
7272 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7273 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7275 insn16
= N16_TYPE333 (LWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7277 insn_type
= NDS32_INSN_LWI333
;
7279 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7280 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7282 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7283 insn_type
= NDS32_INSN_LWI37
;
7285 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7286 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7288 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7289 insn_type
= NDS32_INSN_LWI37_SP
;
7291 else if (mach
>= MACH_V2
&& N32_IS_RT4 (insn
) && N32_RA5 (insn
) == REG_R8
7292 && -32 <= N32_IMM15S (insn
) && N32_IMM15S (insn
) < 0)
7294 insn16
= N16_TYPE45 (LWI45_FE
, N32_RT54 (insn
),
7295 N32_IMM15S (insn
) + 32);
7296 insn_type
= NDS32_INSN_LWI45_FE
;
7301 if (N32_IS_RT4 (insn
) && N32_IMM15S (insn
) == 0)
7303 insn16
= N16_TYPE45 (SWI450
, N32_RT54 (insn
), N32_RA5 (insn
));
7304 insn_type
= NDS32_INSN_SWI450
;
7306 else if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7307 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7309 insn16
= N16_TYPE333 (SWI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7311 insn_type
= NDS32_INSN_SWI333
;
7313 else if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_FP
7314 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7316 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7317 insn_type
= NDS32_INSN_SWI37
;
7319 else if (mach
>= MACH_V2
&& N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_SP
7320 && IS_WITHIN_U (N32_IMM15S (insn
), 7))
7322 insn16
= N16_TYPE37 (XWI37SP
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7323 insn_type
= NDS32_INSN_SWI37_SP
;
7327 case N32_OP6_LWI_BI
:
7328 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7329 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7331 insn16
= N16_TYPE333 (LWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7333 insn_type
= NDS32_INSN_LWI333_BI
;
7337 case N32_OP6_SWI_BI
:
7338 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7339 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7341 insn16
= N16_TYPE333 (SWI333_BI
, N32_RT5 (insn
), N32_RA5 (insn
),
7343 insn_type
= NDS32_INSN_SWI333_BI
;
7348 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7349 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7351 insn16
= N16_TYPE333 (LHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7353 insn_type
= NDS32_INSN_LHI333
;
7358 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7359 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7361 insn16
= N16_TYPE333 (SHI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7363 insn_type
= NDS32_INSN_SHI333
;
7368 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7369 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7371 insn16
= N16_TYPE333 (LBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7373 insn_type
= NDS32_INSN_LBI333
;
7378 if (N32_IS_RT3 (insn
) && N32_IS_RA3 (insn
)
7379 && IS_WITHIN_U (N32_IMM15S (insn
), 3))
7381 insn16
= N16_TYPE333 (SBI333
, N32_RT5 (insn
), N32_RA5 (insn
),
7383 insn_type
= NDS32_INSN_SBI333
;
7388 return nds32_convert_32_to_16_alu1 (abfd
, insn
, pinsn16
, pinsn_type
);
7391 return nds32_convert_32_to_16_alu2 (abfd
, insn
, pinsn16
, pinsn_type
);
7394 if (!IS_WITHIN_S (N32_IMM14S (insn
), 8))
7397 if ((insn
& __BIT (14)) == 0)
7400 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7401 && N32_RT5 (insn
) != REG_R5
)
7402 insn16
= N16_TYPE38 (BEQS38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7403 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7404 && N32_RA5 (insn
) != REG_R5
)
7405 insn16
= N16_TYPE38 (BEQS38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7406 insn_type
= NDS32_INSN_BEQS38
;
7412 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
7413 && N32_RT5 (insn
) != REG_R5
)
7414 insn16
= N16_TYPE38 (BNES38
, N32_RT5 (insn
), N32_IMM14S (insn
));
7415 else if (N32_IS_RA3 (insn
) && N32_RT5 (insn
) == REG_R5
7416 && N32_RA5 (insn
) != REG_R5
)
7417 insn16
= N16_TYPE38 (BNES38
, N32_RA5 (insn
), N32_IMM14S (insn
));
7418 insn_type
= NDS32_INSN_BNES38
;
7424 switch (N32_BR2_SUB (insn
))
7427 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7429 insn16
= N16_TYPE38 (BEQZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7430 insn_type
= NDS32_INSN_BEQZ38
;
7432 else if (N32_RT5 (insn
) == REG_R15
7433 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7435 insn16
= N16_TYPE8 (BEQZS8
, N32_IMM16S (insn
));
7436 insn_type
= NDS32_INSN_BEQZS8
;
7441 if (N32_IS_RT3 (insn
) && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7443 insn16
= N16_TYPE38 (BNEZ38
, N32_RT5 (insn
), N32_IMM16S (insn
));
7444 insn_type
= NDS32_INSN_BNEZ38
;
7446 else if (N32_RT5 (insn
) == REG_R15
7447 && IS_WITHIN_S (N32_IMM16S (insn
), 8))
7449 insn16
= N16_TYPE8 (BNEZS8
, N32_IMM16S (insn
));
7450 insn_type
= NDS32_INSN_BNEZS8
;
7454 case N32_BR2_IFCALL
:
7455 if (IS_WITHIN_U (N32_IMM16S (insn
), 9))
7457 insn16
= N16_TYPE9 (IFCALL9
, N32_IMM16S (insn
));
7458 insn_type
= NDS32_INSN_IFCALL9
;
7465 if ((insn
& __BIT (24)) == 0)
7468 if (IS_WITHIN_S (N32_IMM24S (insn
), 8))
7470 insn16
= N16_TYPE8 (J8
, N32_IMM24S (insn
));
7471 insn_type
= NDS32_INSN_J8
;
7477 if (__GF (insn
, 8, 2) != 0)
7480 switch (N32_IMMU (insn
, 5))
7483 if (N32_JREG_HINT (insn
) == 0)
7486 insn16
= N16_TYPE5 (JR5
, N32_RB5 (insn
));
7487 insn_type
= NDS32_INSN_JR5
;
7489 else if (N32_JREG_HINT (insn
) == 1)
7492 insn16
= N16_TYPE5 (RET5
, N32_RB5 (insn
));
7493 insn_type
= NDS32_INSN_RET5
;
7495 else if (N32_JREG_HINT (insn
) == 3)
7497 /* ifret = mov55 $sp, $sp */
7498 insn16
= N16_TYPE55 (MOV55
, REG_SP
, REG_SP
);
7499 insn_type
= NDS32_INSN_IFRET
;
7504 /* It's convertible when return rt5 is $lp and address
7505 translation is kept. */
7506 if (N32_RT5 (insn
) == REG_LP
&& N32_JREG_HINT (insn
) == 0)
7508 insn16
= N16_TYPE5 (JRAL5
, N32_RB5 (insn
));
7509 insn_type
= NDS32_INSN_JRAL5
;
7516 if (N32_SUB5 (insn
) == N32_MISC_BREAK
&& N32_SWID (insn
) < 32)
7518 /* For v3, swid above 31 are used for ex9.it. */
7519 insn16
= N16_TYPE5 (BREAK16
, N32_SWID (insn
));
7520 insn_type
= NDS32_INSN_BREAK16
;
7525 /* This instruction has no 16-bit variant. */
7530 /* Bit-15 of insn16 should be set for a valid instruction. */
7531 if ((insn16
& 0x8000) == 0)
7537 *pinsn_type
= insn_type
;
7542 special_convert_32_to_16 (unsigned long insn
, uint16_t *pinsn16
,
7543 Elf_Internal_Rela
*reloc
)
7545 uint16_t insn16
= 0;
7547 if ((reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
) == 0
7548 || (ELF32_R_TYPE (reloc
->r_info
) != R_NDS32_INSN16
))
7551 if (!N32_IS_RT3 (insn
))
7554 switch (N32_OP6 (insn
))
7557 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7558 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM15S (insn
));
7561 if (N32_RA5 (insn
) == REG_GP
&& IS_WITHIN_U (N32_IMM15S (insn
), 7))
7562 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM15S (insn
));
7565 if (!IS_WITHIN_U (N32_IMM17S (insn
), 7))
7568 if (__GF (insn
, 17, 3) == 6)
7569 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 0, N32_IMM17S (insn
));
7570 else if (__GF (insn
, 17, 3) == 7)
7571 insn16
= N16_TYPE37 (XWI37
, N32_RT5 (insn
), 1, N32_IMM17S (insn
));
7575 if ((insn16
& 0x8000) == 0)
7582 /* Convert a 16-bit instruction to 32-bit one.
7583 INSN16 it the input and PINSN it the point to output.
7584 Return non-zero on successful. Otherwise 0 is returned. */
7587 nds32_convert_16_to_32 (bfd
*abfd
, uint16_t insn16
, uint32_t *pinsn
)
7589 uint32_t insn
= 0xffffffff;
7590 unsigned long mach
= bfd_get_mach (abfd
);
7592 /* NOTE: push25, pop25 and movd44 do not have 32-bit variants. */
7594 switch (__GF (insn16
, 9, 6))
7596 case 0x4: /* add45 */
7597 insn
= N32_ALU1 (ADD
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7600 case 0x5: /* sub45 */
7601 insn
= N32_ALU1 (SUB
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7604 case 0x6: /* addi45 */
7605 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7606 N16_IMM5U (insn16
));
7608 case 0x7: /* subi45 */
7609 insn
= N32_TYPE2 (ADDI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7610 -N16_IMM5U (insn16
));
7612 case 0x8: /* srai45 */
7613 insn
= N32_ALU1 (SRAI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7614 N16_IMM5U (insn16
));
7616 case 0x9: /* srli45 */
7617 insn
= N32_ALU1 (SRLI
, N16_RT4 (insn16
), N16_RT4 (insn16
),
7618 N16_IMM5U (insn16
));
7620 case 0xa: /* slli333 */
7621 insn
= N32_ALU1 (SLLI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7622 N16_IMM3U (insn16
));
7624 case 0xc: /* add333 */
7625 insn
= N32_ALU1 (ADD
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7628 case 0xd: /* sub333 */
7629 insn
= N32_ALU1 (SUB
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7632 case 0xe: /* addi333 */
7633 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7634 N16_IMM3U (insn16
));
7636 case 0xf: /* subi333 */
7637 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7638 -N16_IMM3U (insn16
));
7640 case 0x10: /* lwi333 */
7641 insn
= N32_TYPE2 (LWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7642 N16_IMM3U (insn16
));
7644 case 0x12: /* lhi333 */
7645 insn
= N32_TYPE2 (LHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7646 N16_IMM3U (insn16
));
7648 case 0x13: /* lbi333 */
7649 insn
= N32_TYPE2 (LBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7650 N16_IMM3U (insn16
));
7652 case 0x11: /* lwi333.bi */
7653 insn
= N32_TYPE2 (LWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7654 N16_IMM3U (insn16
));
7656 case 0x14: /* swi333 */
7657 insn
= N32_TYPE2 (SWI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7658 N16_IMM3U (insn16
));
7660 case 0x16: /* shi333 */
7661 insn
= N32_TYPE2 (SHI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7662 N16_IMM3U (insn16
));
7664 case 0x17: /* sbi333 */
7665 insn
= N32_TYPE2 (SBI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7666 N16_IMM3U (insn16
));
7668 case 0x15: /* swi333.bi */
7669 insn
= N32_TYPE2 (SWI_BI
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7670 N16_IMM3U (insn16
));
7672 case 0x18: /* addri36.sp */
7673 insn
= N32_TYPE2 (ADDI
, N16_RT3 (insn16
), REG_SP
,
7674 N16_IMM6U (insn16
) << 2);
7676 case 0x19: /* lwi45.fe */
7677 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), REG_R8
,
7678 (N16_IMM5U (insn16
) - 32));
7680 case 0x1a: /* lwi450 */
7681 insn
= N32_TYPE2 (LWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7683 case 0x1b: /* swi450 */
7684 insn
= N32_TYPE2 (SWI
, N16_RT4 (insn16
), N16_RA5 (insn16
), 0);
7687 /* These are r15 implied instructions. */
7688 case 0x30: /* slts45 */
7689 insn
= N32_ALU1 (SLTS
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7691 case 0x31: /* slt45 */
7692 insn
= N32_ALU1 (SLT
, REG_TA
, N16_RT4 (insn16
), N16_RA5 (insn16
));
7694 case 0x32: /* sltsi45 */
7695 insn
= N32_TYPE2 (SLTSI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7697 case 0x33: /* slti45 */
7698 insn
= N32_TYPE2 (SLTI
, REG_TA
, N16_RT4 (insn16
), N16_IMM5U (insn16
));
7700 case 0x34: /* beqzs8, bnezs8 */
7701 if (insn16
& __BIT (8))
7702 insn
= N32_BR2 (BNEZ
, REG_TA
, N16_IMM8S (insn16
));
7704 insn
= N32_BR2 (BEQZ
, REG_TA
, N16_IMM8S (insn16
));
7707 case 0x35: /* break16, ex9.it */
7708 /* Only consider range of v3 break16. */
7709 insn
= N32_TYPE0 (MISC
, (N16_IMM5U (insn16
) << 5) | N32_MISC_BREAK
);
7712 case 0x3c: /* ifcall9 */
7713 insn
= N32_BR2 (IFCALL
, 0, N16_IMM9U (insn16
));
7715 case 0x3d: /* movpi45 */
7716 insn
= N32_TYPE1 (MOVI
, N16_RT4 (insn16
), N16_IMM5U (insn16
) + 16);
7719 case 0x3f: /* MISC33 */
7720 switch (insn16
& 0x7)
7723 insn
= N32_TYPE2 (SUBRI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7726 insn
= N32_ALU1 (NOR
, N16_RT3 (insn16
), N16_RA3 (insn16
),
7730 insn
= N32_ALU2 (MUL
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7734 insn
= N32_ALU1 (XOR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7738 insn
= N32_ALU1 (AND
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7742 insn
= N32_ALU1 (OR
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7749 switch (insn16
& 0x7)
7752 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0xff);
7755 insn
= N32_ALU1 (ZEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7758 insn
= N32_ALU1 (SEB
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7761 insn
= N32_ALU1 (SEH
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0);
7763 case 4: /* xlsb33 */
7764 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 1);
7766 case 5: /* x11b33 */
7767 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RA3 (insn16
), 0x7ff);
7769 case 6: /* bmski33 */
7770 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7771 1 << __GF (insn16
, 3, 3));
7773 case 7: /* fexti33 */
7774 insn
= N32_TYPE2 (ANDI
, N16_RT3 (insn16
), N16_RT3 (insn16
),
7775 (1 << (__GF (insn16
, 3, 3) + 1)) - 1);
7781 switch (__GF (insn16
, 10, 5))
7783 case 0x0: /* mov55 or ifret16 */
7784 if (mach
>= MACH_V3
&& N16_RT5 (insn16
) == REG_SP
7785 && N16_RT5 (insn16
) == N16_RA5 (insn16
))
7786 insn
= N32_JREG (JR
, 0, 0, 0, 3);
7788 insn
= N32_TYPE2 (ADDI
, N16_RT5 (insn16
), N16_RA5 (insn16
), 0);
7790 case 0x1: /* movi55 */
7791 insn
= N32_TYPE1 (MOVI
, N16_RT5 (insn16
), N16_IMM5S (insn16
));
7793 case 0x1b: /* addi10s (V2) */
7794 insn
= N32_TYPE2 (ADDI
, REG_SP
, REG_SP
, N16_IMM10S (insn16
));
7798 switch (__GF (insn16
, 11, 4))
7800 case 0x7: /* lwi37.fp/swi37.fp */
7801 if (insn16
& __BIT (7)) /* swi37.fp */
7802 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7804 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_FP
, N16_IMM7U (insn16
));
7806 case 0x8: /* beqz38 */
7807 insn
= N32_BR2 (BEQZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7809 case 0x9: /* bnez38 */
7810 insn
= N32_BR2 (BNEZ
, N16_RT38 (insn16
), N16_IMM8S (insn16
));
7812 case 0xa: /* beqs38/j8, implied r5 */
7813 if (N16_RT38 (insn16
) == 5)
7814 insn
= N32_JI (J
, N16_IMM8S (insn16
));
7816 insn
= N32_BR1 (BEQ
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7818 case 0xb: /* bnes38 and others */
7819 if (N16_RT38 (insn16
) == 5)
7821 switch (__GF (insn16
, 5, 3))
7824 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 0);
7827 insn
= N32_JREG (JR
, 0, N16_RA5 (insn16
), 0, 1);
7830 insn
= N32_JREG (JRAL
, REG_LP
, N16_RA5 (insn16
), 0, 0);
7832 case 2: /* ex9.it imm5 */
7833 /* ex9.it had no 32-bit variantl. */
7835 case 5: /* add5.pc */
7836 /* add5.pc had no 32-bit variantl. */
7841 insn
= N32_BR1 (BNE
, N16_RT38 (insn16
), REG_R5
, N16_IMM8S (insn16
));
7843 case 0xe: /* lwi37/swi37 */
7844 if (insn16
& (1 << 7)) /* swi37.sp */
7845 insn
= N32_TYPE2 (SWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7847 insn
= N32_TYPE2 (LWI
, N16_RT38 (insn16
), REG_SP
, N16_IMM7U (insn16
));
7852 if (insn
& 0x80000000)
7861 is_sda_access_insn (unsigned long insn
)
7863 switch (N32_OP6 (insn
))
7884 static unsigned long
7885 turn_insn_to_sda_access (uint32_t insn
, bfd_signed_vma type
, uint32_t *pinsn
)
7891 case R_NDS32_GOT_LO12
:
7892 case R_NDS32_GOTOFF_LO12
:
7893 case R_NDS32_PLTREL_LO12
:
7894 case R_NDS32_PLT_GOTREL_LO12
:
7895 case R_NDS32_LO12S0_RELA
:
7896 switch (N32_OP6 (insn
))
7900 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
7904 oinsn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
7908 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
7912 oinsn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
7917 case R_NDS32_LO12S1_RELA
:
7918 switch (N32_OP6 (insn
))
7922 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
7926 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
7930 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
7935 case R_NDS32_LO12S2_RELA
:
7936 switch (N32_OP6 (insn
))
7940 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
7944 oinsn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
7949 case R_NDS32_LO12S2_DP_RELA
:
7950 case R_NDS32_LO12S2_SP_RELA
:
7951 oinsn
= (insn
& 0x7ff07000) | (REG_GP
<< 15);
7961 /* Linker hasn't found the correct merge section for non-section symbol
7962 in relax time, this work is left to the function elf_link_input_bfd().
7963 So for non-section symbol, _bfd_merged_section_offset is also needed
7964 to find the correct symbol address. */
7967 nds32_elf_rela_local_sym (bfd
*abfd
, Elf_Internal_Sym
*sym
,
7968 asection
**psec
, Elf_Internal_Rela
*rel
)
7970 asection
*sec
= *psec
;
7973 relocation
= (sec
->output_section
->vma
7974 + sec
->output_offset
+ sym
->st_value
);
7975 if ((sec
->flags
& SEC_MERGE
) && sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
7977 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
7979 _bfd_merged_section_offset (abfd
, psec
,
7980 elf_section_data (sec
)->sec_info
,
7981 sym
->st_value
+ rel
->r_addend
);
7984 _bfd_merged_section_offset (abfd
, psec
,
7985 elf_section_data (sec
)->sec_info
,
7986 sym
->st_value
) + rel
->r_addend
;
7990 /* If we have changed the section, and our original section is
7991 marked with SEC_EXCLUDE, it means that the original
7992 SEC_MERGE section has been completely subsumed in some
7993 other SEC_MERGE section. In this case, we need to leave
7994 some info around for --emit-relocs. */
7995 if ((sec
->flags
& SEC_EXCLUDE
) != 0)
7996 sec
->kept_section
= *psec
;
7999 rel
->r_addend
-= relocation
;
8000 rel
->r_addend
+= sec
->output_section
->vma
+ sec
->output_offset
;
8006 calculate_memory_address (bfd
*abfd
, Elf_Internal_Rela
*irel
,
8007 Elf_Internal_Sym
*isymbuf
,
8008 Elf_Internal_Shdr
*symtab_hdr
)
8010 bfd_signed_vma foff
;
8011 bfd_vma symval
, addend
;
8012 Elf_Internal_Rela irel_fn
;
8013 Elf_Internal_Sym
*isym
;
8016 /* Get the value of the symbol referred to by the reloc. */
8017 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
8019 /* A local symbol. */
8020 isym
= isymbuf
+ ELF32_R_SYM (irel
->r_info
);
8022 if (isym
->st_shndx
== SHN_UNDEF
)
8023 sym_sec
= bfd_und_section_ptr
;
8024 else if (isym
->st_shndx
== SHN_ABS
)
8025 sym_sec
= bfd_abs_section_ptr
;
8026 else if (isym
->st_shndx
== SHN_COMMON
)
8027 sym_sec
= bfd_com_section_ptr
;
8029 sym_sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
8030 memcpy (&irel_fn
, irel
, sizeof (Elf_Internal_Rela
));
8031 symval
= nds32_elf_rela_local_sym (abfd
, isym
, &sym_sec
, &irel_fn
);
8032 addend
= irel_fn
.r_addend
;
8037 struct elf_link_hash_entry
*h
;
8039 /* An external symbol. */
8040 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8041 h
= elf_sym_hashes (abfd
)[indx
];
8042 BFD_ASSERT (h
!= NULL
);
8044 while (h
->root
.type
== bfd_link_hash_indirect
8045 || h
->root
.type
== bfd_link_hash_warning
)
8046 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8048 if (h
->root
.type
!= bfd_link_hash_defined
8049 && h
->root
.type
!= bfd_link_hash_defweak
)
8050 /* This appears to be a reference to an undefined
8051 symbol. Just ignore it--it will be caught by the
8052 regular reloc processing. */
8055 if (h
->root
.u
.def
.section
->flags
& SEC_MERGE
)
8057 sym_sec
= h
->root
.u
.def
.section
;
8058 symval
= _bfd_merged_section_offset (abfd
, &sym_sec
, elf_section_data
8059 (sym_sec
)->sec_info
, h
->root
.u
.def
.value
);
8060 symval
= symval
+ sym_sec
->output_section
->vma
8061 + sym_sec
->output_offset
;
8064 symval
= (h
->root
.u
.def
.value
8065 + h
->root
.u
.def
.section
->output_section
->vma
8066 + h
->root
.u
.def
.section
->output_offset
);
8067 addend
= irel
->r_addend
;
8070 foff
= symval
+ addend
;
8076 calculate_got_memory_address (bfd
*abfd
, struct bfd_link_info
*link_info
,
8077 Elf_Internal_Rela
*irel
,
8078 Elf_Internal_Shdr
*symtab_hdr
)
8081 bfd_vma
*local_got_offsets
;
8082 /* Get the value of the symbol referred to by the reloc. */
8083 struct elf_link_hash_entry
*h
;
8084 struct elf_nds32_link_hash_table
*htab
= nds32_elf_hash_table (link_info
);
8086 /* An external symbol. */
8087 symndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
8088 h
= elf_sym_hashes (abfd
)[symndx
];
8089 while (h
->root
.type
== bfd_link_hash_indirect
8090 || h
->root
.type
== bfd_link_hash_warning
)
8091 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
8095 BFD_ASSERT (h
!= NULL
);
8096 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8101 local_got_offsets
= elf_local_got_offsets (abfd
);
8102 BFD_ASSERT (local_got_offsets
!= NULL
);
8103 return htab
->sgot
->output_section
->vma
+ htab
->sgot
->output_offset
8104 + local_got_offsets
[ELF32_R_SYM (irel
->r_info
)];
8107 /* The _GLOBAL_OFFSET_TABLE_ may be undefweak(or should be?). */
8108 /* The check of h->root.type is passed. */
8112 is_16bit_NOP (bfd
*abfd ATTRIBUTE_UNUSED
,
8113 asection
*sec
, Elf_Internal_Rela
*rel
)
8116 unsigned short insn16
;
8118 if (!(rel
->r_addend
& R_NDS32_INSN16_CONVERT_FLAG
))
8120 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8121 insn16
= bfd_getb16 (contents
+ rel
->r_offset
);
8122 if (insn16
== NDS32_NOP16
)
8127 /* It checks whether the instruction could be converted to
8128 16-bit form and returns the converted one.
8130 `internal_relocs' is supposed to be sorted. */
8133 is_convert_32_to_16 (bfd
*abfd
, asection
*sec
,
8134 Elf_Internal_Rela
*reloc
,
8135 Elf_Internal_Rela
*internal_relocs
,
8136 Elf_Internal_Rela
*irelend
,
8139 #define NORMAL_32_TO_16 (1 << 0)
8140 #define SPECIAL_32_TO_16 (1 << 1)
8141 bfd_byte
*contents
= NULL
;
8145 Elf_Internal_Rela
*pc_rel
;
8146 int pic_ext_target
= 0;
8147 Elf_Internal_Shdr
*symtab_hdr
;
8148 Elf_Internal_Sym
*isymbuf
= NULL
;
8152 if (reloc
->r_offset
+ 4 > sec
->size
)
8155 offset
= reloc
->r_offset
;
8157 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
8159 insn
= bfd_getb32 (contents
+ offset
);
8161 if (nds32_convert_32_to_16 (abfd
, insn
, insn16
, NULL
))
8162 convert_type
= NORMAL_32_TO_16
;
8163 else if (special_convert_32_to_16 (insn
, insn16
, reloc
))
8164 convert_type
= SPECIAL_32_TO_16
;
8168 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8169 if (!nds32_get_local_syms (abfd
, sec
, &isymbuf
))
8172 /* Find the first relocation of the same relocation-type,
8173 so we iteratie them forward. */
8175 while ((pc_rel
- 1) >= internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8178 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8180 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8181 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8182 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
8183 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8185 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8187 if (off
>= ACCURATE_8BIT_S1
|| off
< -ACCURATE_8BIT_S1
8192 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8194 /* movi => movi55 */
8195 mem_addr
= calculate_memory_address (abfd
, pc_rel
, isymbuf
,
8197 /* mem_addr is unsigned, but the value should
8198 be between [-16, 15]. */
8199 if ((mem_addr
+ 0x10) >> 5)
8203 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_20
)
8204 || (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_TLS_LE_LO12
))
8206 /* It never happen movi to movi55 for R_NDS32_TLS_LE_20,
8207 because it can be relaxed to addi for TLS_LE_ADD. */
8210 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8211 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8212 && (reloc
->r_addend
& R_NDS32_INSN16_FP7U2_FLAG
)
8213 && convert_type
== SPECIAL_32_TO_16
)
8216 We've selected a best fp-base for this access, so we can
8217 always resolve it anyway. Do nothing. */
8220 else if ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_NONE
8221 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_RELA_GNU_VTINHERIT
))
8222 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_RELA_GNU_VTENTRY
)
8223 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_INSN16
))
8224 || ((ELF32_R_TYPE (pc_rel
->r_info
) > R_NDS32_LOADSTORE
)
8225 && (ELF32_R_TYPE (pc_rel
->r_info
) < R_NDS32_DWARF2_OP1_RELA
)))
8227 /* Prevent unresolved addi instruction translate
8228 to addi45 or addi333. */
8231 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8233 off
= calculate_offset (abfd
, sec
, pc_rel
, isymbuf
, symtab_hdr
,
8235 if (off
>= ACCURATE_U9BIT_S1
|| off
<= 0)
8245 nds32_elf_write_16 (bfd
*abfd ATTRIBUTE_UNUSED
, bfd_byte
*contents
,
8246 Elf_Internal_Rela
*reloc
,
8247 Elf_Internal_Rela
*internal_relocs
,
8248 Elf_Internal_Rela
*irelend
,
8249 unsigned short insn16
)
8251 Elf_Internal_Rela
*pc_rel
;
8254 offset
= reloc
->r_offset
;
8255 bfd_putb16 (insn16
, contents
+ offset
);
8256 /* Find the first relocation of the same relocation-type,
8257 so we iteratie them forward. */
8259 while ((pc_rel
- 1) > internal_relocs
&& pc_rel
[-1].r_offset
== offset
)
8262 for (; pc_rel
< irelend
&& pc_rel
->r_offset
== offset
; pc_rel
++)
8264 if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_15_PCREL_RELA
8265 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17_PCREL_RELA
8266 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PCREL_RELA
)
8269 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PCREL_RELA
);
8271 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_25_PLTREL
)
8273 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_9_PLTREL
);
8274 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_20_RELA
)
8276 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_5_RELA
);
8277 else if (ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA15S2_RELA
8278 || ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_SDA17S2_RELA
)
8280 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_SDA_FP7U2_RELA
);
8281 else if ((ELF32_R_TYPE (pc_rel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
))
8283 ELF32_R_INFO (ELF32_R_SYM (pc_rel
->r_info
), R_NDS32_10IFCU_PCREL_RELA
);
8287 /* Find a relocation of type specified by `reloc_type'
8288 of the same r_offset with reloc.
8289 If not found, return irelend.
8291 Assuming relocations are sorted by r_offset,
8292 we find the relocation from `reloc' backward untill relocs,
8293 or find it from `reloc' forward untill irelend. */
8295 static Elf_Internal_Rela
*
8296 find_relocs_at_address (Elf_Internal_Rela
*reloc
,
8297 Elf_Internal_Rela
*relocs
,
8298 Elf_Internal_Rela
*irelend
,
8299 enum elf_nds32_reloc_type reloc_type
)
8301 Elf_Internal_Rela
*rel_t
;
8303 /* Find backward. */
8305 rel_t
>= relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8307 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8310 /* We didn't find it backward. Try find it forward. */
8312 rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8314 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8320 /* Find a relocation of specified type and offset.
8321 `reloc' is just a refence point to find a relocation at specified offset.
8322 If not found, return irelend.
8324 Assuming relocations are sorted by r_offset,
8325 we find the relocation from `reloc' backward untill relocs,
8326 or find it from `reloc' forward untill irelend. */
8328 static Elf_Internal_Rela
*
8329 find_relocs_at_address_addr (Elf_Internal_Rela
*reloc
,
8330 Elf_Internal_Rela
*relocs
,
8331 Elf_Internal_Rela
*irelend
,
8332 enum elf_nds32_reloc_type reloc_type
,
8335 Elf_Internal_Rela
*rel_t
= NULL
;
8337 /* First, we try to find a relocation of offset `offset_p',
8338 and then we use find_relocs_at_address to find specific type. */
8340 if (reloc
->r_offset
> offset_p
)
8342 /* Find backward. */
8344 rel_t
>= relocs
&& rel_t
->r_offset
> offset_p
; rel_t
--)
8347 else if (reloc
->r_offset
< offset_p
)
8351 rel_t
< irelend
&& rel_t
->r_offset
< offset_p
; rel_t
++)
8358 if (rel_t
< relocs
|| rel_t
== irelend
|| rel_t
->r_offset
!= offset_p
)
8361 return find_relocs_at_address (rel_t
, relocs
, irelend
, reloc_type
);
8365 nds32_elf_check_dup_relocs (Elf_Internal_Rela
*reloc
,
8366 Elf_Internal_Rela
*internal_relocs
,
8367 Elf_Internal_Rela
*irelend
,
8368 unsigned char reloc_type
)
8370 Elf_Internal_Rela
*rel_t
;
8373 rel_t
>= internal_relocs
&& rel_t
->r_offset
== reloc
->r_offset
;
8375 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8377 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8378 && rel_t
->r_addend
== reloc
->r_addend
)
8383 for (rel_t
= reloc
; rel_t
< irelend
&& rel_t
->r_offset
== reloc
->r_offset
;
8385 if (ELF32_R_TYPE (rel_t
->r_info
) == reloc_type
)
8387 if (ELF32_R_SYM (rel_t
->r_info
) == ELF32_R_SYM (reloc
->r_info
)
8388 && rel_t
->r_addend
== reloc
->r_addend
)
8396 typedef struct nds32_elf_blank nds32_elf_blank_t
;
8397 struct nds32_elf_blank
8399 /* Where the blank begins. */
8401 /* The size of the blank. */
8403 /* The accumulative size before this blank. */
8405 nds32_elf_blank_t
*next
;
8406 nds32_elf_blank_t
*prev
;
8409 static nds32_elf_blank_t
*blank_free_list
= NULL
;
8411 static nds32_elf_blank_t
*
8412 create_nds32_elf_blank (bfd_vma offset_p
, bfd_vma size_p
)
8414 nds32_elf_blank_t
*blank_t
;
8416 if (blank_free_list
)
8418 blank_t
= blank_free_list
;
8419 blank_free_list
= blank_free_list
->next
;
8422 blank_t
= bfd_malloc (sizeof (nds32_elf_blank_t
));
8424 if (blank_t
== NULL
)
8427 blank_t
->offset
= offset_p
;
8428 blank_t
->size
= size_p
;
8429 blank_t
->total_size
= 0;
8430 blank_t
->next
= NULL
;
8431 blank_t
->prev
= NULL
;
8437 remove_nds32_elf_blank (nds32_elf_blank_t
*blank_p
)
8439 if (blank_free_list
)
8441 blank_free_list
->prev
= blank_p
;
8442 blank_p
->next
= blank_free_list
;
8445 blank_p
->next
= NULL
;
8447 blank_p
->prev
= NULL
;
8448 blank_free_list
= blank_p
;
8452 clean_nds32_elf_blank (void)
8454 nds32_elf_blank_t
*blank_t
;
8456 while (blank_free_list
)
8458 blank_t
= blank_free_list
;
8459 blank_free_list
= blank_free_list
->next
;
8464 static nds32_elf_blank_t
*
8465 search_nds32_elf_blank (nds32_elf_blank_t
*blank_p
, bfd_vma addr
)
8467 nds32_elf_blank_t
*blank_t
;
8473 while (blank_t
&& addr
< blank_t
->offset
)
8474 blank_t
= blank_t
->prev
;
8475 while (blank_t
&& blank_t
->next
&& addr
>= blank_t
->next
->offset
)
8476 blank_t
= blank_t
->next
;
8482 get_nds32_elf_blank_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8485 nds32_elf_blank_t
*blank_t
;
8487 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8494 if (addr
< blank_t
->offset
+ blank_t
->size
)
8495 return blank_t
->total_size
+ (addr
- blank_t
->offset
);
8497 return blank_t
->total_size
+ blank_t
->size
;
8501 insert_nds32_elf_blank (nds32_elf_blank_t
**blank_p
, bfd_vma addr
, bfd_vma len
)
8503 nds32_elf_blank_t
*blank_t
, *blank_t2
;
8507 *blank_p
= create_nds32_elf_blank (addr
, len
);
8508 return *blank_p
? TRUE
: FALSE
;
8511 blank_t
= search_nds32_elf_blank (*blank_p
, addr
);
8513 if (blank_t
== NULL
)
8515 blank_t
= create_nds32_elf_blank (addr
, len
);
8518 while ((*blank_p
)->prev
!= NULL
)
8519 *blank_p
= (*blank_p
)->prev
;
8520 blank_t
->next
= *blank_p
;
8521 (*blank_p
)->prev
= blank_t
;
8522 (*blank_p
) = blank_t
;
8526 if (addr
< blank_t
->offset
+ blank_t
->size
)
8528 if (addr
> blank_t
->offset
+ blank_t
->size
)
8529 blank_t
->size
= addr
- blank_t
->offset
;
8533 blank_t2
= create_nds32_elf_blank (addr
, len
);
8538 blank_t
->next
->prev
= blank_t2
;
8539 blank_t2
->next
= blank_t
->next
;
8541 blank_t2
->prev
= blank_t
;
8542 blank_t
->next
= blank_t2
;
8543 *blank_p
= blank_t2
;
8550 insert_nds32_elf_blank_recalc_total (nds32_elf_blank_t
**blank_p
, bfd_vma addr
,
8553 nds32_elf_blank_t
*blank_t
;
8555 if (!insert_nds32_elf_blank (blank_p
, addr
, len
))
8562 blank_t
->total_size
= 0;
8563 blank_t
= blank_t
->next
;
8568 blank_t
->total_size
= blank_t
->prev
->total_size
+ blank_t
->prev
->size
;
8569 blank_t
= blank_t
->next
;
8576 calc_nds32_blank_total (nds32_elf_blank_t
*blank_p
)
8578 nds32_elf_blank_t
*blank_t
;
8579 bfd_vma total_size
= 0;
8585 while (blank_t
->prev
)
8586 blank_t
= blank_t
->prev
;
8589 blank_t
->total_size
= total_size
;
8590 total_size
+= blank_t
->size
;
8591 blank_t
= blank_t
->next
;
8596 nds32_elf_relax_delete_blanks (bfd
*abfd
, asection
*sec
,
8597 nds32_elf_blank_t
*blank_p
)
8599 Elf_Internal_Shdr
*symtab_hdr
; /* Symbol table header of this bfd. */
8600 Elf_Internal_Sym
*isym
= NULL
; /* Symbol table of this bfd. */
8601 Elf_Internal_Sym
*isymend
; /* Symbol entry iterator. */
8602 unsigned int sec_shndx
; /* The section the be relaxed. */
8603 bfd_byte
*contents
; /* Contents data of iterating section. */
8604 Elf_Internal_Rela
*internal_relocs
;
8605 Elf_Internal_Rela
*irel
;
8606 Elf_Internal_Rela
*irelend
;
8607 struct elf_link_hash_entry
**sym_hashes
;
8608 struct elf_link_hash_entry
**end_hashes
;
8609 unsigned int symcount
;
8611 nds32_elf_blank_t
*blank_t
;
8612 nds32_elf_blank_t
*blank_t2
;
8613 nds32_elf_blank_t
*blank_head
;
8615 blank_head
= blank_t
= blank_p
;
8616 while (blank_head
->prev
!= NULL
)
8617 blank_head
= blank_head
->prev
;
8618 while (blank_t
->next
!= NULL
)
8619 blank_t
= blank_t
->next
;
8621 if (blank_t
->offset
+ blank_t
->size
<= sec
->size
)
8623 blank_t
->next
= create_nds32_elf_blank (sec
->size
+ 4, 0);
8624 blank_t
->next
->prev
= blank_t
;
8626 if (blank_head
->offset
> 0)
8628 blank_head
->prev
= create_nds32_elf_blank (0, 0);
8629 blank_head
->prev
->next
= blank_head
;
8630 blank_head
= blank_head
->prev
;
8633 sec_shndx
= _bfd_elf_section_from_bfd_section (abfd
, sec
);
8635 /* The deletion must stop at the next ALIGN reloc for an alignment
8636 power larger than the number of bytes we are deleting. */
8638 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8639 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
8644 isym
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8645 symtab_hdr
->sh_info
, 0, NULL
, NULL
, NULL
);
8646 symtab_hdr
->contents
= (bfd_byte
*) isym
;
8649 if (isym
== NULL
|| symtab_hdr
->sh_info
== 0)
8652 blank_t
= blank_head
;
8653 calc_nds32_blank_total (blank_head
);
8655 for (sect
= abfd
->sections
; sect
!= NULL
; sect
= sect
->next
)
8657 /* Adjust all the relocs. */
8659 /* Relocations MUST be kept in memory, because relaxation adjust them. */
8660 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sect
, NULL
, NULL
,
8661 TRUE
/* keep_memory */);
8662 irelend
= internal_relocs
+ sect
->reloc_count
;
8664 blank_t
= blank_head
;
8665 blank_t2
= blank_head
;
8667 if (!(sect
->flags
& SEC_RELOC
))
8670 nds32_get_section_contents (abfd
, sect
, &contents
, TRUE
);
8672 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
8676 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_DIFF8
8677 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_DIFF32
8678 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8680 unsigned long val
= 0;
8682 long before
, between
;
8685 switch (ELF32_R_TYPE (irel
->r_info
))
8688 offset
= bfd_get_8 (abfd
, contents
+ irel
->r_offset
);
8690 case R_NDS32_DIFF16
:
8691 offset
= bfd_get_16 (abfd
, contents
+ irel
->r_offset
);
8693 case R_NDS32_DIFF32
:
8694 val
= bfd_get_32 (abfd
, contents
+ irel
->r_offset
);
8695 /* Get the signed bit and mask for the high part. The
8696 gcc will alarm when right shift 32-bit since the
8697 type size of long may be 32-bit. */
8698 mask
= 0 - (val
>> 31);
8700 offset
= (val
| (mask
- 0xffffffff));
8709 0 |encoded in location|
8710 |------------|-------------------|---------
8712 -- before ---| *****************
8713 --------------------- between ---|
8715 We only care how much data are relax between DIFF,
8718 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8719 between
= get_nds32_elf_blank_total (&blank_t
,
8720 irel
->r_addend
+ offset
, 0);
8721 if (between
== before
)
8722 goto done_adjust_diff
;
8724 switch (ELF32_R_TYPE (irel
->r_info
))
8727 bfd_put_8 (abfd
, offset
- (between
- before
),
8728 contents
+ irel
->r_offset
);
8730 case R_NDS32_DIFF16
:
8731 bfd_put_16 (abfd
, offset
- (between
- before
),
8732 contents
+ irel
->r_offset
);
8734 case R_NDS32_DIFF32
:
8735 bfd_put_32 (abfd
, offset
- (between
- before
),
8736 contents
+ irel
->r_offset
);
8740 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_DIFF_ULEB128
8741 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
)
8744 unsigned int len
= 0;
8745 unsigned long before
, between
;
8748 val
= read_unsigned_leb128 (abfd
, contents
+ irel
->r_offset
,
8751 before
= get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 0);
8752 between
= get_nds32_elf_blank_total (&blank_t
,
8753 irel
->r_addend
+ val
, 0);
8754 if (between
== before
)
8755 goto done_adjust_diff
;
8757 p
= contents
+ irel
->r_offset
;
8759 memset (p
, 0x80, len
);
8761 p
= write_uleb128 (p
, val
- (between
- before
)) - 1;
8769 raddr
= irel
->r_offset
;
8770 irel
->r_offset
-= get_nds32_elf_blank_total (&blank_t2
,
8773 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
8775 if (blank_t2
&& blank_t2
->next
8776 && (blank_t2
->offset
> raddr
8777 || blank_t2
->next
->offset
<= raddr
))
8778 (*_bfd_error_handler
)
8779 (_("%B: %s\n"), abfd
,
8780 "Error: search_nds32_elf_blank reports wrong node");
8782 /* Mark reloc in deleted portion as NONE.
8783 For some relocs like R_NDS32_LABEL that doesn't modify the
8784 content in the section. R_NDS32_LABEL doesn't belong to the
8785 instruction in the section, so we should preserve it. */
8786 if (raddr
>= blank_t2
->offset
8787 && raddr
< blank_t2
->offset
+ blank_t2
->size
8788 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
8789 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_BEGIN
8790 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
8791 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
8792 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_SUBTRAHEND
8793 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_MINUEND
)
8795 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
8801 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
8802 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
8803 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
8806 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
8807 && isym
[ELF32_R_SYM (irel
->r_info
)].st_shndx
== sec_shndx
8808 && ELF_ST_TYPE (isym
[ELF32_R_SYM (irel
->r_info
)].st_info
) == STT_SECTION
)
8810 if (irel
->r_addend
<= sec
->size
)
8812 get_nds32_elf_blank_total (&blank_t
, irel
->r_addend
, 1);
8817 /* Adjust the local symbols defined in this section. */
8818 blank_t
= blank_head
;
8819 for (isymend
= isym
+ symtab_hdr
->sh_info
; isym
< isymend
; isym
++)
8821 if (isym
->st_shndx
== sec_shndx
)
8823 if (isym
->st_value
<= sec
->size
)
8826 bfd_vma orig_addr
= isym
->st_value
;
8828 ahead
= get_nds32_elf_blank_total (&blank_t
, isym
->st_value
, 1);
8829 isym
->st_value
-= ahead
;
8831 /* Adjust function size. */
8832 if (ELF32_ST_TYPE (isym
->st_info
) == STT_FUNC
8833 && isym
->st_size
> 0)
8835 get_nds32_elf_blank_total
8836 (&blank_t
, orig_addr
+ isym
->st_size
, 0) - ahead
;
8841 /* Now adjust the global symbols defined in this section. */
8842 symcount
= (symtab_hdr
->sh_size
/ sizeof (Elf32_External_Sym
)
8843 - symtab_hdr
->sh_info
);
8844 sym_hashes
= elf_sym_hashes (abfd
);
8845 end_hashes
= sym_hashes
+ symcount
;
8846 blank_t
= blank_head
;
8847 for (; sym_hashes
< end_hashes
; sym_hashes
++)
8849 struct elf_link_hash_entry
*sym_hash
= *sym_hashes
;
8851 if ((sym_hash
->root
.type
== bfd_link_hash_defined
8852 || sym_hash
->root
.type
== bfd_link_hash_defweak
)
8853 && sym_hash
->root
.u
.def
.section
== sec
)
8855 if (sym_hash
->root
.u
.def
.value
<= sec
->size
)
8858 bfd_vma orig_addr
= sym_hash
->root
.u
.def
.value
;
8860 ahead
= get_nds32_elf_blank_total (&blank_t
, sym_hash
->root
.u
.def
.value
, 1);
8861 sym_hash
->root
.u
.def
.value
-= ahead
;
8863 /* Adjust function size. */
8864 if (sym_hash
->type
== STT_FUNC
)
8866 get_nds32_elf_blank_total
8867 (&blank_t
, orig_addr
+ sym_hash
->size
, 0) - ahead
;
8873 contents
= elf_section_data (sec
)->this_hdr
.contents
;
8874 blank_t
= blank_head
;
8875 while (blank_t
->next
)
8877 /* Actually delete the bytes. */
8879 /* If current blank is the last blank overlap with current section,
8880 go to finish process. */
8881 if (sec
->size
<= (blank_t
->next
->offset
))
8884 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8885 contents
+ blank_t
->offset
+ blank_t
->size
,
8886 blank_t
->next
->offset
- (blank_t
->offset
+ blank_t
->size
));
8888 blank_t
= blank_t
->next
;
8891 if (sec
->size
> (blank_t
->offset
+ blank_t
->size
))
8893 /* There are remaining code between blank and section boundary.
8894 Move the remaining code to appropriate location. */
8895 memmove (contents
+ blank_t
->offset
- blank_t
->total_size
,
8896 contents
+ blank_t
->offset
+ blank_t
->size
,
8897 sec
->size
- (blank_t
->offset
+ blank_t
->size
));
8898 sec
->size
-= blank_t
->total_size
+ blank_t
->size
;
8901 /* This blank is not entirely included in the section,
8902 reduce the section size by only part of the blank size. */
8903 sec
->size
-= blank_t
->total_size
+ (sec
->size
- blank_t
->offset
);
8907 blank_t
= blank_head
;
8908 blank_head
= blank_head
->next
;
8909 remove_nds32_elf_blank (blank_t
);
8915 /* Get the contents of a section. */
8918 nds32_get_section_contents (bfd
*abfd
, asection
*sec
,
8919 bfd_byte
**contents_p
, bfd_boolean cache
)
8921 /* Get the section contents. */
8922 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
8923 *contents_p
= elf_section_data (sec
)->this_hdr
.contents
;
8926 if (!bfd_malloc_and_get_section (abfd
, sec
, contents_p
))
8929 elf_section_data (sec
)->this_hdr
.contents
= *contents_p
;
8935 /* Get the contents of the internal symbol of abfd. */
8938 nds32_get_local_syms (bfd
*abfd
, asection
*sec ATTRIBUTE_UNUSED
,
8939 Elf_Internal_Sym
**isymbuf_p
)
8941 Elf_Internal_Shdr
*symtab_hdr
;
8942 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
8944 /* Read this BFD's local symbols if we haven't done so already. */
8945 if (*isymbuf_p
== NULL
&& symtab_hdr
->sh_info
!= 0)
8947 *isymbuf_p
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
8948 if (*isymbuf_p
== NULL
)
8950 *isymbuf_p
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
8951 symtab_hdr
->sh_info
, 0,
8953 if (*isymbuf_p
== NULL
)
8957 symtab_hdr
->contents
= (bfd_byte
*) (*isymbuf_p
);
8962 /* Range of small data. */
8963 static bfd_vma sdata_range
[2][2];
8964 static bfd_vma
const sdata_init_range
[2] =
8965 { ACCURATE_12BIT_S1
, ACCURATE_19BIT
};
8968 nds32_elf_insn_size (bfd
*abfd ATTRIBUTE_UNUSED
,
8969 bfd_byte
*contents
, bfd_vma addr
)
8971 unsigned long insn
= bfd_getb32 (contents
+ addr
);
8973 if (insn
& 0x80000000)
8979 /* Set the gp relax range. We have to measure the safe range
8980 to do gp relaxation. */
8983 relax_range_measurement (bfd
*abfd
)
8985 asection
*sec_f
, *sec_b
;
8986 /* For upper bound. */
8987 bfd_vma maxpgsz
= get_elf_backend_data (abfd
)->maxpagesize
;
8989 static int decide_relax_range
= 0;
8991 int range_number
= sizeof (sdata_init_range
) / sizeof (sdata_init_range
[0]);
8993 if (decide_relax_range
)
8995 decide_relax_range
= 1;
8997 if (sda_rela_sec
== NULL
)
8999 /* Since there is no data sections, we assume the range is page size. */
9000 for (i
= 0; i
< range_number
; i
++)
9002 sdata_range
[i
][0] = sdata_init_range
[i
] - 0x1000;
9003 sdata_range
[i
][1] = sdata_init_range
[i
] - 0x1000;
9008 /* Get the biggest alignment power after the gp located section. */
9009 sec_f
= sda_rela_sec
->output_section
;
9010 sec_b
= sec_f
->next
;
9012 while (sec_b
!= NULL
)
9014 if ((unsigned)(1 << sec_b
->alignment_power
) > align
)
9015 align
= (1 << sec_b
->alignment_power
);
9016 sec_b
= sec_b
->next
;
9019 /* I guess we can not determine the section before
9020 gp located section, so we assume the align is max page size. */
9021 for (i
= 0; i
< range_number
; i
++)
9023 sdata_range
[i
][1] = sdata_init_range
[i
] - align
;
9024 BFD_ASSERT (sdata_range
[i
][1] <= sdata_init_range
[i
]);
9025 sdata_range
[i
][0] = sdata_init_range
[i
] - maxpgsz
;
9026 BFD_ASSERT (sdata_range
[i
][0] <= sdata_init_range
[i
]);
9030 /* These are macros used to check flags encoded in r_addend.
9031 They are only used by nds32_elf_relax_section (). */
9032 #define GET_SEQ_LEN(addend) ((addend) & 0x000000ff)
9033 #define IS_1ST_CONVERT(addend) ((addend) & 0x80000000)
9034 #define IS_OPTIMIZE(addend) ((addend) & 0x40000000)
9035 #define IS_16BIT_ON(addend) ((addend) & 0x20000000)
9037 /* Relax LONGCALL1 relocation for nds32_elf_relax_section. */
9040 nds32_elf_relax_longcall1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9041 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9042 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9043 Elf_Internal_Shdr
*symtab_hdr
)
9045 /* There are 3 variations for LONGCALL1
9046 case 4-4-2; 16-bit on, optimize off or optimize for space
9047 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9048 ori ta, ta, lo12(symbol) ; LO12S0
9051 case 4-4-4; 16-bit off, optimize don't care
9052 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9053 ori ta, ta, lo12(symbol) ; LO12S0
9056 case 4-4-4; 16-bit on, optimize for speed
9057 sethi ta, hi20(symbol) ; LONGCALL1/HI20
9058 ori ta, ta, lo12(symbol) ; LO12S0
9060 Check code for -mlong-calls output. */
9062 /* Get the reloc for the address from which the register is
9063 being loaded. This reloc will tell us which function is
9064 actually being called. */
9067 int seq_len
; /* Original length of instruction sequence. */
9069 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9070 int pic_ext_target
= 0;
9071 bfd_signed_vma foff
;
9074 irelend
= internal_relocs
+ sec
->reloc_count
;
9075 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9076 laddr
= irel
->r_offset
;
9077 *insn_len
= seq_len
;
9079 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9080 R_NDS32_HI20_RELA
, laddr
);
9081 lo_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9082 R_NDS32_LO12S0_ORI_RELA
,
9085 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9087 (*_bfd_error_handler
)
9088 ("%B: warning: R_NDS32_LONGCALL1 points to unrecognized"
9089 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9093 /* Get the value of the symbol referred to by the reloc. */
9094 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9097 /* This condition only happened when symbol is undefined. */
9098 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9099 || foff
>= CONSERVATIVE_24BIT_S1
)
9102 /* Relax to: jal symbol; 25_PCREL */
9103 /* For simplicity of coding, we are going to modify the section
9104 contents, the section relocs, and the BFD symbol table. We
9105 must tell the rest of the code not to free up this
9106 information. It would be possible to instead create a table
9107 of changes which have to be made, as is done in coff-mips.c;
9108 that would be more work, but would require less memory when
9109 the linker is run. */
9111 /* Replace the long call with a jal. */
9112 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9113 R_NDS32_25_PCREL_RELA
);
9114 irel
->r_addend
= hi_irelfn
->r_addend
;
9116 /* We don't resolve this here but resolve it in relocate_section. */
9118 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9121 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9123 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9128 insn16
= NDS32_NOP16
;
9129 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9131 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9132 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9138 #define CONVERT_CONDITION_CALL(insn) (((insn) & 0xffff0000) ^ 0x90000)
9139 /* Relax LONGCALL2 relocation for nds32_elf_relax_section. */
9142 nds32_elf_relax_longcall2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9143 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9144 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9145 Elf_Internal_Shdr
*symtab_hdr
)
9147 /* bltz rt, .L1 ; LONGCALL2
9148 jal symbol ; 25_PCREL
9151 /* Get the reloc for the address from which the register is
9152 being loaded. This reloc will tell us which function is
9153 actually being called. */
9157 Elf_Internal_Rela
*i1_irelfn
, *cond_irelfn
, *irelend
;
9158 int pic_ext_target
= 0;
9159 bfd_signed_vma foff
;
9161 irelend
= internal_relocs
+ sec
->reloc_count
;
9162 laddr
= irel
->r_offset
;
9164 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9165 R_NDS32_25_PCREL_RELA
, laddr
+ 4);
9167 if (i1_irelfn
== irelend
)
9169 (*_bfd_error_handler
)
9170 ("%B: warning: R_NDS32_LONGCALL2 points to unrecognized"
9171 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9175 insn
= bfd_getb32 (contents
+ laddr
);
9177 /* Get the value of the symbol referred to by the reloc. */
9178 foff
= calculate_offset (abfd
, sec
, i1_irelfn
, isymbuf
, symtab_hdr
,
9181 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9182 || foff
>= CONSERVATIVE_16BIT_S1
)
9185 /* Relax to bgezal rt, label ; 17_PCREL
9186 or bltzal rt, label ; 17_PCREL */
9188 /* Convert to complimentary conditional call. */
9189 insn
= CONVERT_CONDITION_CALL (insn
);
9191 /* For simplicity of coding, we are going to modify the section
9192 contents, the section relocs, and the BFD symbol table. We
9193 must tell the rest of the code not to free up this
9194 information. It would be possible to instead create a table
9195 of changes which have to be made, as is done in coff-mips.c;
9196 that would be more work, but would require less memory when
9197 the linker is run. */
9199 /* Clean unnessary relocations. */
9201 ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
), R_NDS32_NONE
);
9203 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9204 R_NDS32_17_PCREL_RELA
, laddr
);
9205 if (cond_irelfn
!= irelend
)
9206 cond_irelfn
->r_info
=
9207 ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
), R_NDS32_NONE
);
9209 /* Replace the long call with a bgezal. */
9210 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i1_irelfn
->r_info
),
9211 R_NDS32_17_PCREL_RELA
);
9212 irel
->r_addend
= i1_irelfn
->r_addend
;
9214 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9220 /* Relax LONGCALL3 relocation for nds32_elf_relax_section. */
9223 nds32_elf_relax_longcall3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9224 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9225 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9226 Elf_Internal_Shdr
*symtab_hdr
)
9228 /* There are 3 variations for LONGCALL3
9229 case 4-4-4-2; 16-bit on, optimize off or optimize for space
9230 bltz rt, $1 ; LONGCALL3
9231 sethi ta, hi20(symbol) ; HI20
9232 ori ta, ta, lo12(symbol) ; LO12S0
9236 case 4-4-4-4; 16-bit off, optimize don't care
9237 bltz rt, $1 ; LONGCALL3
9238 sethi ta, hi20(symbol) ; HI20
9239 ori ta, ta, lo12(symbol) ; LO12S0
9243 case 4-4-4-4; 16-bit on, optimize for speed
9244 bltz rt, $1 ; LONGCALL3
9245 sethi ta, hi20(symbol) ; HI20
9246 ori ta, ta, lo12(symbol) ; LO12S0
9250 /* Get the reloc for the address from which the register is
9251 being loaded. This reloc will tell us which function is
9252 actually being called. */
9255 int seq_len
; /* Original length of instruction sequence. */
9257 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9258 int pic_ext_target
= 0;
9259 bfd_signed_vma foff
;
9262 irelend
= internal_relocs
+ sec
->reloc_count
;
9263 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9264 laddr
= irel
->r_offset
;
9265 *insn_len
= seq_len
;
9268 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9269 R_NDS32_HI20_RELA
, laddr
+ 4);
9271 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9272 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 8);
9274 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9276 (*_bfd_error_handler
)
9277 ("%B: warning: R_NDS32_LONGCALL3 points to unrecognized"
9278 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9282 /* Get the value of the symbol referred to by the reloc. */
9283 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9286 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9287 || foff
>= CONSERVATIVE_24BIT_S1
)
9290 insn
= bfd_getb32 (contents
+ laddr
);
9291 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
9293 /* Relax to bgezal rt, label ; 17_PCREL
9294 or bltzal rt, label ; 17_PCREL */
9296 /* Convert to complimentary conditional call. */
9297 insn
= CONVERT_CONDITION_CALL (insn
);
9298 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9302 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9304 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
9306 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9309 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9310 R_NDS32_17_PCREL_RELA
, laddr
);
9311 if (cond_irelfn
!= irelend
)
9313 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9314 R_NDS32_17_PCREL_RELA
);
9315 cond_irelfn
->r_addend
= hi_irelfn
->r_addend
;
9320 insn16
= NDS32_NOP16
;
9321 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9322 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9324 hi_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9328 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
9330 /* Relax to the following instruction sequence
9331 bltz rt, $1 ; LONGCALL2
9332 jal symbol ; 25_PCREL
9336 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9338 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9339 R_NDS32_25_PCREL_RELA
);
9341 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL2
);
9344 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9348 insn16
= NDS32_NOP16
;
9349 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9351 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_INSN16
);
9352 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9359 /* Relax LONGJUMP1 relocation for nds32_elf_relax_section. */
9362 nds32_elf_relax_longjump1 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9363 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9364 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9365 Elf_Internal_Shdr
*symtab_hdr
)
9367 /* There are 3 variations for LONGJUMP1
9368 case 4-4-2; 16-bit bit on, optimize off or optimize for space
9369 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9370 ori ta, ta, lo12(symbol) ; LO12S0
9373 case 4-4-4; 16-bit off, optimize don't care
9374 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9375 ori ta, ta, lo12(symbol) ; LO12S0
9378 case 4-4-4; 16-bit on, optimize for speed
9379 sethi ta, hi20(symbol) ; LONGJUMP1/HI20
9380 ori ta, ta, lo12(symbol) ; LO12S0
9383 /* Get the reloc for the address from which the register is
9384 being loaded. This reloc will tell us which function is
9385 actually being called. */
9388 int seq_len
; /* Original length of instruction sequence. */
9389 int insn16_on
; /* 16-bit on/off. */
9391 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *irelend
;
9392 int pic_ext_target
= 0;
9393 bfd_signed_vma foff
;
9395 unsigned long reloc
;
9397 irelend
= internal_relocs
+ sec
->reloc_count
;
9398 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9399 laddr
= irel
->r_offset
;
9400 *insn_len
= seq_len
;
9401 insn16_on
= IS_16BIT_ON (irel
->r_addend
);
9404 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9405 R_NDS32_HI20_RELA
, laddr
);
9407 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9408 R_NDS32_LO12S0_ORI_RELA
, laddr
+ 4);
9409 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
)
9411 (*_bfd_error_handler
)
9412 ("%B: warning: R_NDS32_LONGJUMP1 points to unrecognized"
9413 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9417 /* Get the value of the symbol referred to by the reloc. */
9418 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9421 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
9422 || foff
< -CONSERVATIVE_24BIT_S1
)
9425 if (insn16_on
&& foff
>= -ACCURATE_8BIT_S1
9426 && foff
< ACCURATE_8BIT_S1
&& (seq_len
& 0x2))
9429 /* 16-bit on, but not optimized for speed. */
9430 reloc
= R_NDS32_9_PCREL_RELA
;
9432 bfd_putb16 (insn16
, contents
+ irel
->r_offset
);
9435 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
9440 reloc
= R_NDS32_25_PCREL_RELA
;
9442 bfd_putb32 (insn
, contents
+ irel
->r_offset
);
9445 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_INSN16
);
9450 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9452 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
), R_NDS32_NONE
);
9454 if ((seq_len
& 0x2) && ((*insn_len
& 2) == 0))
9456 insn16
= NDS32_NOP16
;
9457 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9459 ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9461 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9467 /* Revert condition branch. This function does not check if the input
9468 instruction is condition branch or not. */
9471 nds32_elf_convert_branch (uint16_t insn16
, uint32_t insn
,
9472 uint16_t *re_insn16
, uint32_t *re_insn
)
9474 uint32_t comp_insn
= 0;
9475 uint16_t comp_insn16
= 0;
9479 if (N32_OP6 (insn
) == N32_OP6_BR1
)
9482 comp_insn
= (insn
^ 0x4000) & 0xffffc000;
9483 if (N32_IS_RT3 (insn
) && N32_RA5 (insn
) == REG_R5
)
9485 /* Insn can be contracted to 16-bit implied r5. */
9487 (comp_insn
& 0x4000) ? INSN_BNES38
: INSN_BEQS38
;
9488 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9491 else if (N32_OP6 (insn
) == N32_OP6_BR3
)
9493 /* bnec $ta, imm11, label. */
9494 comp_insn
= (insn
^ 0x80000) & 0xffffff00;
9498 comp_insn
= (insn
^ 0x10000) & 0xffffc000;
9499 if (N32_BR2_SUB (insn
) == N32_BR2_BEQZ
9500 || N32_BR2_SUB (insn
) == N32_BR2_BNEZ
)
9502 if (N32_IS_RT3 (insn
))
9504 /* Insn can be contracted to 16-bit. */
9506 (comp_insn
& 0x10000) ? INSN_BNEZ38
: INSN_BEQZ38
;
9507 comp_insn16
|= (N32_RT5 (insn
) & 0x7) << 8;
9509 else if (N32_RT5 (insn
) == REG_R15
)
9511 /* Insn can be contracted to 16-bit. */
9513 (comp_insn
& 0x10000) ? INSN_BNES38
: INSN_BEQS38
;
9520 switch ((insn16
& 0xf000) >> 12)
9523 /* beqz38 or bnez38 */
9524 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9525 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNEZ
: INSN_BEQZ
;
9526 comp_insn
|= ((comp_insn16
& 0x0700) >> 8) << 20;
9530 /* beqs38 or bnes38 */
9531 comp_insn16
= (insn16
^ 0x0800) & 0xff00;
9532 comp_insn
= (comp_insn16
& 0x0800) ? INSN_BNE
: INSN_BEQ
;
9533 comp_insn
|= (((comp_insn16
& 0x0700) >> 8) << 20)
9538 /* beqzS8 or bnezS8 */
9539 comp_insn16
= (insn16
^ 0x0100) & 0xff00;
9540 comp_insn
= (comp_insn16
& 0x0100) ? INSN_BNEZ
: INSN_BEQZ
;
9541 comp_insn
|= REG_R15
<< 20;
9548 if (comp_insn
&& re_insn
)
9549 *re_insn
= comp_insn
;
9550 if (comp_insn16
&& re_insn16
)
9551 *re_insn16
= comp_insn16
;
9554 /* Relax LONGJUMP2 relocation for nds32_elf_relax_section. */
9557 nds32_elf_relax_longjump2 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9558 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9559 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9560 Elf_Internal_Shdr
*symtab_hdr
)
9562 /* There are 3 variations for LONGJUMP2
9563 case 2-4; 1st insn convertible, 16-bit on,
9564 optimize off or optimize for space
9565 bnes38 rt, ra, $1 ; LONGJUMP2
9569 case 4-4; 1st insn not convertible
9570 bne rt, ra, $1 ; LONGJUMP2
9574 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9575 bne rt, ra, $1 ; LONGJUMP2
9579 /* Get the reloc for the address from which the register is
9580 being loaded. This reloc will tell us which function is
9581 actually being called. */
9584 int seq_len
; /* Original length of instruction sequence. */
9585 Elf_Internal_Rela
*i2_irelfn
, *cond_irelfn
, *irelend
;
9586 int pic_ext_target
= 0, first_size
;
9588 bfd_signed_vma foff
;
9589 uint32_t insn
, re_insn
= 0;
9590 uint16_t insn16
, re_insn16
= 0;
9591 unsigned long reloc
, cond_reloc
;
9593 enum elf_nds32_reloc_type checked_types
[] =
9594 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9596 irelend
= internal_relocs
+ sec
->reloc_count
;
9597 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9598 laddr
= irel
->r_offset
;
9599 *insn_len
= seq_len
;
9600 first_size
= (seq_len
== 6) ? 2 : 4;
9603 find_relocs_at_address_addr (irel
, internal_relocs
,
9604 irelend
, R_NDS32_25_PCREL_RELA
,
9605 laddr
+ first_size
);
9607 for (i
= 0; i
< sizeof (checked_types
) / sizeof(checked_types
[0]); i
++)
9610 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9611 checked_types
[i
], laddr
);
9612 if (cond_irelfn
!= irelend
)
9616 if (i2_irelfn
== irelend
|| cond_irelfn
== irelend
)
9618 (*_bfd_error_handler
)
9619 ("%B: warning: R_NDS32_LONGJUMP2 points to unrecognized"
9620 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9624 /* Get the value of the symbol referred to by the reloc. */
9626 calculate_offset (abfd
, sec
, i2_irelfn
, isymbuf
, symtab_hdr
,
9628 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
9629 || foff
>= CONSERVATIVE_16BIT_S1
)
9632 /* Get the all corresponding instructions. */
9633 if (first_size
== 4)
9635 insn
= bfd_getb32 (contents
+ laddr
);
9636 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9640 insn16
= bfd_getb16 (contents
+ laddr
);
9641 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9644 if (re_insn16
&& foff
>= -(ACCURATE_8BIT_S1
- first_size
)
9645 && foff
< ACCURATE_8BIT_S1
- first_size
)
9647 if (first_size
== 4)
9649 /* Don't convert it to 16-bit now, keep this as relaxable for
9650 ``label reloc; INSN16''. */
9652 /* Save comp_insn32 to buffer. */
9653 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9655 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9656 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9657 cond_reloc
= R_NDS32_INSN16
;
9661 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9663 reloc
= R_NDS32_9_PCREL_RELA
;
9664 cond_reloc
= R_NDS32_NONE
;
9667 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9668 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9669 && foff
< ACCURATE_14BIT_S1
- first_size
))
9671 /* beqs label ; 15_PCREL */
9672 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9674 reloc
= R_NDS32_15_PCREL_RELA
;
9675 cond_reloc
= R_NDS32_NONE
;
9677 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9678 && foff
>= -CONSERVATIVE_16BIT_S1
9679 && foff
< CONSERVATIVE_16BIT_S1
)
9681 /* beqz label ; 17_PCREL */
9682 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9684 reloc
= R_NDS32_17_PCREL_RELA
;
9685 cond_reloc
= R_NDS32_NONE
;
9690 /* Set all relocations. */
9691 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
), reloc
);
9692 irel
->r_addend
= i2_irelfn
->r_addend
;
9694 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9696 cond_irelfn
->r_addend
= 0;
9698 if ((seq_len
^ *insn_len
) & 0x2)
9700 insn16
= NDS32_NOP16
;
9701 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ 4);
9702 i2_irelfn
->r_offset
= 4;
9703 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9705 i2_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9709 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (i2_irelfn
->r_info
),
9714 /* Relax LONGJUMP3 relocation for nds32_elf_relax_section. */
9717 nds32_elf_relax_longjump3 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9718 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9719 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9720 Elf_Internal_Shdr
*symtab_hdr
)
9722 /* There are 5 variations for LONGJUMP3
9723 case 1: 2-4-4-2; 1st insn convertible, 16-bit on,
9724 optimize off or optimize for space
9725 bnes38 rt, ra, $1 ; LONGJUMP3
9726 sethi ta, hi20(symbol) ; HI20
9727 ori ta, ta, lo12(symbol) ; LO12S0
9731 case 2: 2-4-4-2; 1st insn convertible, 16-bit on, optimize for speed
9732 bnes38 rt, ra, $1 ; LONGJUMP3
9733 sethi ta, hi20(symbol) ; HI20
9734 ori ta, ta, lo12(symbol) ; LO12S0
9738 case 3: 4-4-4-2; 1st insn not convertible, 16-bit on,
9739 optimize off or optimize for space
9740 bne rt, ra, $1 ; LONGJUMP3
9741 sethi ta, hi20(symbol) ; HI20
9742 ori ta, ta, lo12(symbol) ; LO12S0
9746 case 4: 4-4-4-4; 1st insn don't care, 16-bit off, optimize don't care
9747 16-bit off if no INSN16
9748 bne rt, ra, $1 ; LONGJUMP3
9749 sethi ta, hi20(symbol) ; HI20
9750 ori ta, ta, lo12(symbol) ; LO12S0
9754 case 5: 4-4-4-4; 1st insn not convertible, 16-bit on, optimize for speed
9755 16-bit off if no INSN16
9756 bne rt, ra, $1 ; LONGJUMP3
9757 sethi ta, hi20(symbol) ; HI20
9758 ori ta, ta, lo12(symbol) ; LO12S0
9762 /* Get the reloc for the address from which the register is
9763 being loaded. This reloc will tell us which function is
9764 actually being called. */
9765 enum elf_nds32_reloc_type checked_types
[] =
9766 { R_NDS32_15_PCREL_RELA
, R_NDS32_9_PCREL_RELA
};
9768 int reloc_off
= 0, cond_removed
= 0, convertible
;
9770 int seq_len
; /* Original length of instruction sequence. */
9771 Elf_Internal_Rela
*hi_irelfn
, *lo_irelfn
, *cond_irelfn
, *irelend
;
9772 int pic_ext_target
= 0, first_size
;
9774 bfd_signed_vma foff
;
9775 uint32_t insn
, re_insn
= 0;
9776 uint16_t insn16
, re_insn16
= 0;
9777 unsigned long reloc
, cond_reloc
;
9779 irelend
= internal_relocs
+ sec
->reloc_count
;
9780 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
9781 laddr
= irel
->r_offset
;
9782 *insn_len
= seq_len
;
9784 convertible
= IS_1ST_CONVERT (irel
->r_addend
);
9791 /* Get all needed relocations. */
9793 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9794 R_NDS32_HI20_RELA
, laddr
+ first_size
);
9796 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9797 R_NDS32_LO12S0_ORI_RELA
,
9798 laddr
+ first_size
+ 4);
9800 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
9803 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9804 checked_types
[i
], laddr
);
9805 if (cond_irelfn
!= irelend
)
9809 if (hi_irelfn
== irelend
|| lo_irelfn
== irelend
|| cond_irelfn
== irelend
)
9811 (*_bfd_error_handler
)
9812 ("%B: warning: R_NDS32_LONGJUMP3 points to unrecognized"
9813 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9817 /* Get the value of the symbol referred to by the reloc. */
9818 foff
= calculate_offset (abfd
, sec
, hi_irelfn
, isymbuf
, symtab_hdr
,
9821 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
9822 || foff
>= CONSERVATIVE_24BIT_S1
)
9825 /* Get the all corresponding instructions. */
9826 if (first_size
== 4)
9828 insn
= bfd_getb32 (contents
+ laddr
);
9829 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
9833 insn16
= bfd_getb16 (contents
+ laddr
);
9834 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
9837 /* For simplicity of coding, we are going to modify the section
9838 contents, the section relocs, and the BFD symbol table. We
9839 must tell the rest of the code not to free up this
9840 information. It would be possible to instead create a table
9841 of changes which have to be made, as is done in coff-mips.c;
9842 that would be more work, but would require less memory when
9843 the linker is run. */
9845 if (re_insn16
&& foff
>= -ACCURATE_8BIT_S1
- first_size
9846 && foff
< ACCURATE_8BIT_S1
- first_size
)
9848 if (!(seq_len
& 0x2))
9850 /* Don't convert it to 16-bit now, keep this as relaxable
9851 for ``label reloc; INSN1a''6. */
9852 /* Save comp_insn32 to buffer. */
9853 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9855 reloc
= (N32_OP6 (re_insn
) == N32_OP6_BR1
) ?
9856 R_NDS32_15_PCREL_RELA
: R_NDS32_17_PCREL_RELA
;
9857 cond_reloc
= R_NDS32_INSN16
;
9861 /* Not optimize for speed; convert sequence to 16-bit. */
9862 /* Save comp_insn16 to buffer. */
9863 bfd_putb16 (re_insn16
, contents
+ irel
->r_offset
);
9865 reloc
= R_NDS32_9_PCREL_RELA
;
9866 cond_reloc
= R_NDS32_NONE
;
9870 else if (N32_OP6 (re_insn
) == N32_OP6_BR1
9871 && (foff
>= -(ACCURATE_14BIT_S1
- first_size
)
9872 && foff
< ACCURATE_14BIT_S1
- first_size
))
9874 /* beqs label ; 15_PCREL */
9875 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9877 reloc
= R_NDS32_15_PCREL_RELA
;
9878 cond_reloc
= R_NDS32_NONE
;
9881 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
9882 && foff
>= -CONSERVATIVE_16BIT_S1
9883 && foff
< CONSERVATIVE_16BIT_S1
)
9885 /* beqz label ; 17_PCREL */
9886 bfd_putb32 (re_insn
, contents
+ irel
->r_offset
);
9888 reloc
= R_NDS32_17_PCREL_RELA
;
9889 cond_reloc
= R_NDS32_NONE
;
9892 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
9893 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
9895 /* Relax to one of the following 3 variations
9897 case 2-4; 1st insn convertible, 16-bit on, optimize off or optimize
9899 bnes38 rt, $1 ; LONGJUMP2
9903 case 4-4; 1st insn not convertible, others don't care
9904 bne rt, ra, $1 ; LONGJUMP2
9908 case 4-4; 1st insn convertible, 16-bit on, optimize for speed
9909 bne rt, ra, $1 ; LONGJUMP2
9913 /* Offset for first instruction. */
9915 /* Use j label as second instruction. */
9916 *insn_len
= 4 + first_size
;
9918 bfd_putb32 (insn
, contents
+ hi_irelfn
->r_offset
);
9919 reloc
= R_NDS32_LONGJUMP2
;
9920 cond_reloc
= R_NDS32_25_PLTREL
;
9925 if (cond_removed
== 1)
9927 /* Set all relocations. */
9928 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), reloc
);
9929 irel
->r_addend
= hi_irelfn
->r_addend
;
9931 cond_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irelfn
->r_info
),
9933 cond_irelfn
->r_addend
= 0;
9934 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9939 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
9940 irel
->r_addend
= irel
->r_addend
;
9941 hi_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
),
9945 if ((seq_len
^ *insn_len
) & 0x2)
9947 insn16
= NDS32_NOP16
;
9948 bfd_putb16 (insn16
, contents
+ irel
->r_offset
+ *insn_len
);
9949 lo_irelfn
->r_offset
= *insn_len
;
9950 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9952 lo_irelfn
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
9956 lo_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (lo_irelfn
->r_info
),
9961 /* Relax LONGCALL4 relocation for nds32_elf_relax_section. */
9964 nds32_elf_relax_longcall4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
9965 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
9966 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
9967 Elf_Internal_Shdr
*symtab_hdr
)
9969 /* The pattern for LONGCALL4. Support for function cse.
9970 sethi ta, hi20(symbol) ; LONGCALL4/HI20
9971 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
9972 jral ta ; PTR_RES/EMPTY/INSN16 */
9976 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *insn_irel
, *em_irel
, *call_irel
;
9977 Elf_Internal_Rela
*irelend
;
9978 int pic_ext_target
= 0;
9979 bfd_signed_vma foff
;
9981 irelend
= internal_relocs
+ sec
->reloc_count
;
9982 laddr
= irel
->r_offset
;
9984 /* Get the reloc for the address from which the register is
9985 being loaded. This reloc will tell us which function is
9986 actually being called. */
9987 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
9988 R_NDS32_HI20_RELA
, laddr
);
9990 if (hi_irel
== irelend
)
9992 (*_bfd_error_handler
)
9993 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
9994 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
9998 /* Get the value of the symbol referred to by the reloc. */
9999 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10002 /* This condition only happened when symbol is undefined. */
10003 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10004 || foff
>= CONSERVATIVE_24BIT_S1
)
10007 /* Relax to: jal symbol; 25_PCREL */
10008 /* For simplicity of coding, we are going to modify the section
10009 contents, the section relocs, and the BFD symbol table. We
10010 must tell the rest of the code not to free up this
10011 information. It would be possible to instead create a table
10012 of changes which have to be made, as is done in coff-mips.c;
10013 that would be more work, but would require less memory when
10014 the linker is run. */
10016 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10017 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10018 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10019 R_NDS32_EMPTY
, irel
->r_addend
);
10021 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10023 (*_bfd_error_handler
)
10024 ("%B: warning: R_NDS32_LONGCALL4 points to unrecognized"
10025 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10028 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10029 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10030 if (insn
& 0x80000000)
10033 /* Replace the long call with a jal. */
10034 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10035 R_NDS32_25_PCREL_RELA
);
10036 ptr_irel
->r_addend
= 1;
10038 /* We don't resolve this here but resolve it in relocate_section. */
10040 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10043 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10045 /* If there is function cse, HI20 can not remove now. */
10046 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10047 R_NDS32_LONGCALL4
, laddr
);
10048 if (call_irel
== irelend
)
10052 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10055 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10056 R_NDS32_INSN16
, irel
->r_addend
);
10057 if (insn_irel
!= irelend
)
10058 insn_irel
->r_info
=
10059 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10064 /* Relax LONGCALL5 relocation for nds32_elf_relax_section. */
10067 nds32_elf_relax_longcall5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10068 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10069 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10070 Elf_Internal_Shdr
*symtab_hdr
)
10072 /* The pattern for LONGCALL5.
10073 bltz rt, .L1 ; LONGCALL5/17_PCREL
10074 jal symbol ; 25_PCREL
10079 Elf_Internal_Rela
*cond_irel
, *irelend
;
10080 int pic_ext_target
= 0;
10081 bfd_signed_vma foff
;
10083 irelend
= internal_relocs
+ sec
->reloc_count
;
10084 laddr
= irel
->r_offset
;
10085 insn
= bfd_getb32 (contents
+ laddr
);
10087 /* Get the reloc for the address from which the register is
10088 being loaded. This reloc will tell us which function is
10089 actually being called. */
10091 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10092 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10093 if (cond_irel
== irelend
)
10095 (*_bfd_error_handler
)
10096 ("%B: warning: R_NDS32_LONGCALL5 points to unrecognized"
10097 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10101 /* Get the value of the symbol referred to by the reloc. */
10102 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10105 if (foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10106 || foff
>= CONSERVATIVE_16BIT_S1
)
10109 /* Relax to bgezal rt, label ; 17_PCREL
10110 or bltzal rt, label ; 17_PCREL */
10112 /* Convert to complimentary conditional call. */
10113 insn
= CONVERT_CONDITION_CALL (insn
);
10115 /* For simplicity of coding, we are going to modify the section
10116 contents, the section relocs, and the BFD symbol table. We
10117 must tell the rest of the code not to free up this
10118 information. It would be possible to instead create a table
10119 of changes which have to be made, as is done in coff-mips.c;
10120 that would be more work, but would require less memory when
10121 the linker is run. */
10123 /* Modify relocation and contents. */
10124 cond_irel
->r_info
=
10125 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10127 /* Replace the long call with a bgezal. */
10128 bfd_putb32 (insn
, contents
+ cond_irel
->r_offset
);
10131 /* Clean unnessary relocations. */
10132 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10134 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10135 R_NDS32_17_PCREL_RELA
, laddr
);
10136 cond_irel
->r_info
=
10137 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10142 /* Relax LONGCALL6 relocation for nds32_elf_relax_section. */
10145 nds32_elf_relax_longcall6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10146 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10147 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10148 Elf_Internal_Shdr
*symtab_hdr
)
10150 /* The pattern for LONGCALL6.
10151 bltz rt, .L1 ; LONGCALL6/17_PCREL
10152 sethi ta, hi20(symbol) ; HI20/PTR
10153 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10154 jral ta ; PTR_RES/EMPTY/INSN16
10159 Elf_Internal_Rela
*em_irel
, *cond_irel
, *irelend
;
10160 int pic_ext_target
= 0;
10161 bfd_signed_vma foff
;
10163 irelend
= internal_relocs
+ sec
->reloc_count
;
10164 laddr
= irel
->r_offset
;
10166 /* Get the reloc for the address from which the register is
10167 being loaded. This reloc will tell us which function is
10168 actually being called. */
10169 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10170 R_NDS32_EMPTY
, irel
->r_addend
);
10172 if (em_irel
== irelend
)
10174 (*_bfd_error_handler
)
10175 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10176 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10180 /* Get the value of the symbol referred to by the reloc. */
10181 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10184 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10185 || foff
>= CONSERVATIVE_24BIT_S1
)
10188 /* Check these is enough space to insert jal in R_NDS32_EMPTY. */
10189 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10190 if (insn
& 0x80000000)
10193 insn
= bfd_getb32 (contents
+ laddr
);
10194 if (foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10196 /* Relax to bgezal rt, label ; 17_PCREL
10197 or bltzal rt, label ; 17_PCREL */
10199 /* Convert to complimentary conditional call. */
10201 insn
= CONVERT_CONDITION_CALL (insn
);
10202 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10205 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_17_PCREL_RELA
);
10207 /* Set resolved relocation. */
10209 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10210 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10211 if (cond_irel
== irelend
)
10213 (*_bfd_error_handler
)
10214 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10215 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10218 cond_irel
->r_addend
= 1;
10220 /* Clear relocations. */
10223 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10226 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10227 R_NDS32_17_PCREL_RELA
, laddr
);
10228 if (cond_irel
!= irelend
)
10229 cond_irel
->r_info
=
10230 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10233 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10234 R_NDS32_INSN16
, irel
->r_addend
);
10235 if (cond_irel
!= irelend
)
10236 cond_irel
->r_info
=
10237 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10240 else if (foff
>= -CONSERVATIVE_24BIT_S1
&& foff
< CONSERVATIVE_24BIT_S1
)
10242 /* Relax to the following instruction sequence
10243 bltz rt, .L1 ; LONGCALL2/17_PCREL
10244 jal symbol ; 25_PCREL/PTR_RES
10247 /* Convert instruction. */
10249 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10251 /* Convert relocations. */
10252 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
),
10253 R_NDS32_25_PCREL_RELA
);
10255 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_LONGCALL5
);
10257 /* Set resolved relocation. */
10259 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10260 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10261 if (cond_irel
== irelend
)
10263 (*_bfd_error_handler
)
10264 ("%B: warning: R_NDS32_LONGCALL6 points to unrecognized"
10265 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10268 cond_irel
->r_addend
= 1;
10271 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10272 R_NDS32_INSN16
, irel
->r_addend
);
10273 if (cond_irel
!= irelend
)
10274 cond_irel
->r_info
=
10275 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10280 /* Relax LONGJUMP4 relocation for nds32_elf_relax_section. */
10283 nds32_elf_relax_longjump4 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10284 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10285 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10286 Elf_Internal_Shdr
*symtab_hdr
)
10288 /* The pattern for LONGJUMP4.
10289 sethi ta, hi20(symbol) ; LONGJUMP4/HI20
10290 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10291 jr ta ; PTR_RES/INSN16/EMPTY */
10294 int seq_len
; /* Original length of instruction sequence. */
10296 Elf_Internal_Rela
*hi_irel
, *ptr_irel
, *em_irel
, *call_irel
, *irelend
;
10297 int pic_ext_target
= 0;
10298 bfd_signed_vma foff
;
10300 irelend
= internal_relocs
+ sec
->reloc_count
;
10301 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10302 laddr
= irel
->r_offset
;
10303 *insn_len
= seq_len
;
10305 /* Get the reloc for the address from which the register is
10306 being loaded. This reloc will tell us which function is
10307 actually being called. */
10309 hi_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10310 R_NDS32_HI20_RELA
, laddr
);
10312 if (hi_irel
== irelend
)
10314 (*_bfd_error_handler
)
10315 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10316 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10320 /* Get the value of the symbol referred to by the reloc. */
10321 foff
= calculate_offset (abfd
, sec
, hi_irel
, isymbuf
, symtab_hdr
,
10324 if (pic_ext_target
|| foff
== 0 || foff
>= CONSERVATIVE_24BIT_S1
10325 || foff
< -CONSERVATIVE_24BIT_S1
)
10328 /* Convert it to "j label", it may be converted to j8 in the final
10329 pass of relaxation. Therefore, we do not consider this currently. */
10330 ptr_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10331 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
10332 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10333 R_NDS32_EMPTY
, irel
->r_addend
);
10335 if (ptr_irel
== irelend
|| em_irel
== irelend
)
10337 (*_bfd_error_handler
)
10338 ("%B: warning: R_NDS32_LONGJUMP4 points to unrecognized"
10339 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10344 ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), R_NDS32_25_PCREL_RELA
);
10345 ptr_irel
->r_addend
= 1;
10347 /* Write instruction. */
10349 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10351 /* Clear relocations. */
10352 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10354 /* If there is function cse, HI20 can not remove now. */
10355 call_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10356 R_NDS32_LONGJUMP4
, laddr
);
10357 if (call_irel
== irelend
)
10361 ELF32_R_INFO (ELF32_R_SYM (hi_irel
->r_info
), R_NDS32_NONE
);
10367 /* Relax LONGJUMP5 relocation for nds32_elf_relax_section. */
10370 nds32_elf_relax_longjump5 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10371 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10372 int *seq_len
, bfd_byte
*contents
,
10373 Elf_Internal_Sym
*isymbuf
,
10374 Elf_Internal_Shdr
*symtab_hdr
)
10376 /* There are 2 variations for LONGJUMP5
10377 case 2-4; 1st insn convertible, 16-bit on.
10378 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10379 j label ; 25_PCREL/INSN16
10382 case 4-4; 1st insn not convertible
10383 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10384 j label ; 25_PCREL/INSN16
10388 Elf_Internal_Rela
*cond_irel
, *irelend
;
10389 int pic_ext_target
= 0;
10391 bfd_signed_vma foff
;
10392 uint32_t insn
, re_insn
= 0;
10393 uint16_t insn16
, re_insn16
= 0;
10394 unsigned long reloc
;
10396 enum elf_nds32_reloc_type checked_types
[] =
10397 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10398 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10400 irelend
= internal_relocs
+ sec
->reloc_count
;
10401 laddr
= irel
->r_offset
;
10403 /* Get the reloc for the address from which the register is
10404 being loaded. This reloc will tell us which function is
10405 actually being called. */
10408 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10409 R_NDS32_25_PCREL_RELA
, irel
->r_addend
);
10410 if (cond_irel
== irelend
)
10412 (*_bfd_error_handler
)
10413 ("%B: warning: R_NDS32_LONGJUMP5 points to unrecognized"
10414 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10418 /* Get the value of the symbol referred to by the reloc. */
10419 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10422 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_16BIT_S1
10423 || foff
>= CONSERVATIVE_16BIT_S1
)
10426 /* Get the all corresponding instructions. */
10427 insn
= bfd_getb32 (contents
+ laddr
);
10428 /* Check instruction size. */
10429 if (insn
& 0x80000000)
10432 insn16
= insn
>> 16;
10433 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10436 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10438 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10439 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10441 /* beqs label ; 15_PCREL. */
10442 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10443 reloc
= R_NDS32_15_PCREL_RELA
;
10445 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10446 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10448 /* beqz label ; 17_PCREL. */
10449 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10450 reloc
= R_NDS32_17_PCREL_RELA
;
10452 else if ( N32_OP6 (re_insn
) == N32_OP6_BR3
10453 && foff
>= -CONSERVATIVE_8BIT_S1
&& foff
< CONSERVATIVE_8BIT_S1
)
10455 /* beqc label ; 9_PCREL. */
10456 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10457 reloc
= R_NDS32_WORD_9_PCREL_RELA
;
10462 /* Set all relocations. */
10463 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), reloc
);
10465 /* Clean relocations. */
10466 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10467 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10469 cond_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10470 checked_types
[i
], laddr
);
10471 if (cond_irel
!= irelend
)
10474 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10476 /* If the branch instruction is 2 byte, it cannot remove
10477 directly. Only convert it to nop16 and remove it after
10478 checking alignment issue. */
10479 insn16
= NDS32_NOP16
;
10480 bfd_putb16 (insn16
, contents
+ laddr
);
10481 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10484 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10493 /* Relax LONGJUMP6 relocation for nds32_elf_relax_section. */
10496 nds32_elf_relax_longjump6 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10497 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10498 int *seq_len
, bfd_byte
*contents
,
10499 Elf_Internal_Sym
*isymbuf
,
10500 Elf_Internal_Shdr
*symtab_hdr
)
10502 /* There are 5 variations for LONGJUMP6
10503 case : 2-4-4-4; 1st insn convertible, 16-bit on.
10504 bnes38 rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10505 sethi ta, hi20(symbol) ; HI20/PTR
10506 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10507 jr ta ; PTR_RES/INSN16/EMPTY
10510 case : 4-4-4-4; 1st insn not convertible, 16-bit on.
10511 bne rt, ra, .L1 ; LONGJUMP6/15_PCREL/INSN16
10512 sethi ta, hi20(symbol) ; HI20/PTR
10513 ori ta, ta, lo12(symbol) ; LO12S0_ORI/PTR
10514 jr ta ; PTR_RES/INSN16/EMPTY
10517 enum elf_nds32_reloc_type checked_types
[] =
10518 { R_NDS32_17_PCREL_RELA
, R_NDS32_15_PCREL_RELA
,
10519 R_NDS32_9_PCREL_RELA
, R_NDS32_INSN16
};
10521 int reloc_off
= 0, cond_removed
= 0;
10523 Elf_Internal_Rela
*cond_irel
, *em_irel
, *irelend
, *insn_irel
;
10524 int pic_ext_target
= 0;
10526 bfd_signed_vma foff
;
10527 uint32_t insn
, re_insn
= 0;
10528 uint16_t insn16
, re_insn16
= 0;
10529 unsigned long reloc
;
10531 irelend
= internal_relocs
+ sec
->reloc_count
;
10532 laddr
= irel
->r_offset
;
10534 /* Get the reloc for the address from which the register is
10535 being loaded. This reloc will tell us which function is
10536 actually being called. */
10537 em_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10538 R_NDS32_EMPTY
, irel
->r_addend
);
10540 if (em_irel
== irelend
)
10542 (*_bfd_error_handler
)
10543 ("%B: warning: R_NDS32_LONGJUMP6 points to unrecognized"
10544 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10548 /* Get the value of the symbol referred to by the reloc. */
10549 foff
= calculate_offset (abfd
, sec
, em_irel
, isymbuf
, symtab_hdr
,
10552 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_24BIT_S1
10553 || foff
>= CONSERVATIVE_24BIT_S1
)
10556 insn
= bfd_getb32 (contents
+ laddr
);
10557 /* Check instruction size. */
10558 if (insn
& 0x80000000)
10561 insn16
= insn
>> 16;
10562 nds32_elf_convert_branch (insn16
, 0, &re_insn16
, &re_insn
);
10565 nds32_elf_convert_branch (0, insn
, &re_insn16
, &re_insn
);
10567 /* For simplicity of coding, we are going to modify the section
10568 contents, the section relocs, and the BFD symbol table. We
10569 must tell the rest of the code not to free up this
10570 information. It would be possible to instead create a table
10571 of changes which have to be made, as is done in coff-mips.c;
10572 that would be more work, but would require less memory when
10573 the linker is run. */
10575 if (N32_OP6 (re_insn
) == N32_OP6_BR1
10576 && (foff
>= -CONSERVATIVE_14BIT_S1
&& foff
< CONSERVATIVE_14BIT_S1
))
10578 /* beqs label ; 15_PCREL */
10579 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10580 reloc
= R_NDS32_15_PCREL_RELA
;
10583 else if (N32_OP6 (re_insn
) == N32_OP6_BR2
10584 && foff
>= -CONSERVATIVE_16BIT_S1
&& foff
< CONSERVATIVE_16BIT_S1
)
10586 /* beqz label ; 17_PCREL */
10587 bfd_putb32 (re_insn
, contents
+ em_irel
->r_offset
);
10588 reloc
= R_NDS32_17_PCREL_RELA
;
10591 else if (foff
>= -CONSERVATIVE_24BIT_S1
- reloc_off
10592 && foff
< CONSERVATIVE_24BIT_S1
- reloc_off
)
10594 /* Relax to one of the following 2 variations
10596 case 2-4; 1st insn convertible, 16-bit on.
10597 bnes38 rt, ra, .L1 ; LONGJUMP5/9_PCREL/INSN16
10598 j label ; 25_PCREL/INSN16
10601 case 4-4; 1st insn not convertible
10602 bne rt, ra, .L1 ; LONGJUMP5/15_PCREL/INSN16
10603 j label ; 25_PCREL/INSN16
10606 /* Use j label as second instruction. */
10608 reloc
= R_NDS32_25_PCREL_RELA
;
10609 bfd_putb32 (insn
, contents
+ em_irel
->r_offset
);
10614 /* Set all relocations. */
10615 em_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (em_irel
->r_info
), reloc
);
10618 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10619 R_NDS32_PTR_RESOLVED
, em_irel
->r_offset
);
10620 cond_irel
->r_addend
= 1;
10622 /* Use INSN16 of first branch instruction to distinguish if keeping
10623 INSN16 of final instruction or not. */
10624 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10625 R_NDS32_INSN16
, irel
->r_offset
);
10626 if (insn_irel
== irelend
)
10628 /* Clean the final INSN16. */
10630 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10631 R_NDS32_INSN16
, em_irel
->r_offset
);
10632 insn_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10636 if (cond_removed
== 1)
10640 /* Clear relocations. */
10641 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10643 for (i
= 0; i
< sizeof (checked_types
) / sizeof (checked_types
[0]); i
++)
10646 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10647 checked_types
[i
], laddr
);
10648 if (cond_irel
!= irelend
)
10651 && (ELF32_R_TYPE (cond_irel
->r_info
) == R_NDS32_INSN16
))
10653 /* If the branch instruction is 2 byte, it cannot remove
10654 directly. Only convert it to nop16 and remove it after
10655 checking alignment issue. */
10656 insn16
= NDS32_NOP16
;
10657 bfd_putb16 (insn16
, contents
+ laddr
);
10658 cond_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10661 cond_irel
->r_info
=
10662 ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
), R_NDS32_NONE
);
10668 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
10669 R_NDS32_LONGJUMP5
);
10675 /* Relax LONGJUMP7 relocation for nds32_elf_relax_section. */
10678 nds32_elf_relax_longjump7 (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
10679 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10680 int *seq_len
, bfd_byte
*contents
,
10681 Elf_Internal_Sym
*isymbuf
,
10682 Elf_Internal_Shdr
*symtab_hdr
)
10684 /* There are 2 variations for LONGJUMP5
10685 case 2-4; 1st insn convertible, 16-bit on.
10686 movi55 ta, imm11 ; LONGJUMP7/INSN16
10687 beq rt, ta, label ; 15_PCREL
10689 case 4-4; 1st insn not convertible
10690 movi55 ta, imm11 ; LONGJUMP7/INSN16
10691 beq rt, ta, label ; 15_PCREL */
10694 Elf_Internal_Rela
*cond_irel
, *irelend
, *insn_irel
;
10695 int pic_ext_target
= 0;
10696 bfd_signed_vma foff
;
10697 uint32_t insn
, re_insn
= 0;
10701 irelend
= internal_relocs
+ sec
->reloc_count
;
10702 laddr
= irel
->r_offset
;
10704 /* Get the reloc for the address from which the register is
10705 being loaded. This reloc will tell us which function is
10706 actually being called. */
10709 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10710 R_NDS32_15_PCREL_RELA
, irel
->r_addend
);
10711 if (cond_irel
== irelend
)
10713 (*_bfd_error_handler
)
10714 ("%B: warning: R_NDS32_LONGJUMP7 points to unrecognized"
10715 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10719 /* Get the value of the symbol referred to by the reloc. */
10720 foff
= calculate_offset (abfd
, sec
, cond_irel
, isymbuf
, symtab_hdr
,
10723 if (pic_ext_target
|| foff
== 0 || foff
< -CONSERVATIVE_8BIT_S1
10724 || foff
>= CONSERVATIVE_8BIT_S1
)
10727 /* Get the first instruction for its size. */
10728 insn
= bfd_getb32 (contents
+ laddr
);
10729 if (insn
& 0x80000000)
10732 /* Get the immediate from movi55. */
10733 imm11
= N16_IMM5S (insn
>> 16);
10737 /* Get the immediate from movi. */
10738 imm11
= N32_IMM20S (insn
);
10741 /* Get the branch instruction. */
10742 insn
= bfd_getb32 (contents
+ irel
->r_addend
);
10743 /* Convert instruction to BR3. */
10744 if ((insn
>> 14) & 0x1)
10745 re_insn
= N32_BR3 (BNEC
, N32_RT5 (insn
), imm11
, 0);
10747 re_insn
= N32_BR3 (BEQC
, N32_RT5 (insn
), imm11
, 0);
10749 bfd_putb32 (re_insn
, contents
+ cond_irel
->r_offset
);
10751 /* Set all relocations. */
10752 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10753 R_NDS32_WORD_9_PCREL_RELA
);
10755 /* Clean relocations. */
10756 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10757 insn_irel
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10758 R_NDS32_INSN16
, irel
->r_offset
);
10759 if (insn_irel
!= irelend
)
10763 /* If the first insntruction is 16bit, convert it to nop16. */
10764 insn16
= NDS32_NOP16
;
10765 bfd_putb16 (insn16
, contents
+ laddr
);
10766 insn_irel
->r_addend
= R_NDS32_INSN16_CONVERT_FLAG
;
10769 cond_irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (cond_irel
->r_info
),
10777 #define GET_LOADSTORE_RANGE(addend) (((addend) >> 8) & 0x3f)
10779 /* Relax LOADSTORE relocation for nds32_elf_relax_section. */
10782 nds32_elf_relax_loadstore (struct bfd_link_info
*link_info
, bfd
*abfd
,
10783 asection
*sec
, Elf_Internal_Rela
*irel
,
10784 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
10785 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
10786 Elf_Internal_Shdr
*symtab_hdr
, int load_store_relax
)
10788 int eliminate_sethi
= 0, range_type
;
10790 bfd_vma local_sda
, laddr
;
10791 int seq_len
; /* Original length of instruction sequence. */
10793 Elf_Internal_Rela
*hi_irelfn
= NULL
, *irelend
;
10794 bfd_vma access_addr
= 0;
10795 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10796 enum elf_nds32_reloc_type checked_types
[] =
10797 { R_NDS32_HI20_RELA
, R_NDS32_GOT_HI20
,
10798 R_NDS32_GOTPC_HI20
, R_NDS32_GOTOFF_HI20
,
10799 R_NDS32_PLTREL_HI20
, R_NDS32_PLT_GOTREL_HI20
,
10800 R_NDS32_TLS_LE_HI20
10803 irelend
= internal_relocs
+ sec
->reloc_count
;
10804 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
10805 laddr
= irel
->r_offset
;
10806 *insn_len
= seq_len
;
10808 /* Get the high part relocation. */
10809 for (i
= 0; i
< ARRAY_SIZE (checked_types
); i
++)
10811 hi_irelfn
= find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
10812 checked_types
[i
], laddr
);
10813 if (hi_irelfn
!= irelend
)
10817 if (hi_irelfn
== irelend
)
10819 (*_bfd_error_handler
)
10820 ("%B: warning: R_NDS32_LOADSTORE points to unrecognized"
10821 "reloc at 0x%lx.", abfd
, (long) irel
->r_offset
);
10825 range_type
= GET_LOADSTORE_RANGE (irel
->r_addend
);
10826 nds32_elf_final_sda_base (sec
->output_section
->owner
,
10827 link_info
, &local_sda
, FALSE
);
10829 switch (ELF32_R_TYPE (hi_irelfn
->r_info
))
10831 case R_NDS32_HI20_RELA
:
10832 insn
= bfd_getb32 (contents
+ laddr
);
10834 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10836 if (range_type
== NDS32_LOADSTORE_IMM
)
10838 struct elf_link_hash_entry
*h
= NULL
;
10841 if (ELF32_R_SYM (hi_irelfn
->r_info
) >= symtab_hdr
->sh_info
)
10843 indx
= ELF32_R_SYM (hi_irelfn
->r_info
) - symtab_hdr
->sh_info
;
10844 h
= elf_sym_hashes (abfd
)[indx
];
10847 if ((access_addr
< CONSERVATIVE_20BIT
)
10848 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10850 eliminate_sethi
= 1;
10854 /* This is avoid to relax symbol address which is fixed
10855 relocations. Ex: _stack. */
10856 if (h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
10860 if (!load_store_relax
)
10863 /* Case for set gp register. */
10864 if (N32_RT5 (insn
) == REG_GP
)
10867 if (range_type
== NDS32_LOADSTORE_FLOAT_S
10868 || range_type
== NDS32_LOADSTORE_FLOAT_S
)
10870 range_l
= sdata_range
[0][0];
10871 range_h
= sdata_range
[0][1];
10875 range_l
= sdata_range
[1][0];
10876 range_h
= sdata_range
[1][1];
10880 case R_NDS32_GOT_HI20
:
10882 calculate_got_memory_address (abfd
, link_info
, hi_irelfn
, symtab_hdr
);
10884 /* If this symbol is not in .got, the return value will be -1.
10885 Since the gp value is set to SDA_BASE but not GLOBAL_OFFSET_TABLE,
10886 a negative offset is allowed. */
10887 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10888 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10889 eliminate_sethi
= 1;
10892 case R_NDS32_PLT_GOTREL_HI20
:
10893 access_addr
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
,
10894 hi_irelfn
, symtab_hdr
);
10896 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10897 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10898 eliminate_sethi
= 1;
10901 case R_NDS32_GOTOFF_HI20
:
10903 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10905 if ((bfd_signed_vma
) (access_addr
- local_sda
) < CONSERVATIVE_20BIT
10906 && (bfd_signed_vma
) (access_addr
- local_sda
) >= -CONSERVATIVE_20BIT
)
10907 eliminate_sethi
= 1;
10910 case R_NDS32_GOTPC_HI20
:
10911 /* The access_addr must consider r_addend of hi_irel. */
10912 access_addr
= sec
->output_section
->vma
+ sec
->output_offset
10913 + irel
->r_offset
+ hi_irelfn
->r_addend
;
10915 if ((bfd_signed_vma
) (local_sda
- access_addr
) < CONSERVATIVE_20BIT
10916 && (bfd_signed_vma
) (local_sda
- access_addr
) >= -CONSERVATIVE_20BIT
)
10917 eliminate_sethi
= 1;
10920 case R_NDS32_TLS_LE_HI20
:
10922 calculate_memory_address (abfd
, hi_irelfn
, isymbuf
, symtab_hdr
);
10923 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
10924 access_addr
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
10925 if ((range_type
== NDS32_LOADSTORE_IMM
)
10926 && (bfd_signed_vma
) (access_addr
) < CONSERVATIVE_20BIT
10927 && (bfd_signed_vma
) (access_addr
) >= -CONSERVATIVE_20BIT
)
10928 eliminate_sethi
= 1;
10935 /* Delete sethi instruction. */
10936 if (eliminate_sethi
== 1
10937 || (local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
10938 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
10940 hi_irelfn
->r_info
=
10941 ELF32_R_INFO (ELF32_R_SYM (hi_irelfn
->r_info
), R_NDS32_NONE
);
10943 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
10949 /* Relax LO12 relocation for nds32_elf_relax_section. */
10952 nds32_elf_relax_lo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
10953 asection
*sec
, Elf_Internal_Rela
*irel
,
10954 Elf_Internal_Rela
*internal_relocs
, bfd_byte
*contents
,
10955 Elf_Internal_Sym
*isymbuf
, Elf_Internal_Shdr
*symtab_hdr
)
10958 bfd_vma local_sda
, laddr
;
10959 unsigned long reloc
;
10960 bfd_vma access_addr
;
10961 bfd_vma range_l
= 0, range_h
= 0; /* Upper/lower bound. */
10962 Elf_Internal_Rela
*irelfn
= NULL
, *irelend
;
10963 struct elf_link_hash_entry
*h
= NULL
;
10966 /* For SDA base relative relaxation. */
10967 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
10968 &local_sda
, FALSE
);
10970 irelend
= internal_relocs
+ sec
->reloc_count
;
10971 laddr
= irel
->r_offset
;
10972 insn
= bfd_getb32 (contents
+ laddr
);
10974 if (!is_sda_access_insn (insn
) && N32_OP6 (insn
) != N32_OP6_ORI
)
10977 access_addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
10979 if (ELF32_R_SYM (irel
->r_info
) >= symtab_hdr
->sh_info
)
10981 indx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
10982 h
= elf_sym_hashes (abfd
)[indx
];
10985 if (N32_OP6 (insn
) == N32_OP6_ORI
&& access_addr
< CONSERVATIVE_20BIT
10986 && (!h
|| (h
&& strcmp (h
->root
.root
.string
, FP_BASE_NAME
) != 0)))
10988 reloc
= R_NDS32_20_RELA
;
10989 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
10990 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
10991 bfd_putb32 (insn
, contents
+ laddr
);
10993 /* This is avoid to relax symbol address which is fixed
10994 relocations. Ex: _stack. */
10995 else if (N32_OP6 (insn
) == N32_OP6_ORI
10996 && h
&& bfd_is_abs_section (h
->root
.u
.def
.section
))
11000 range_l
= sdata_range
[1][0];
11001 range_h
= sdata_range
[1][1];
11002 switch (ELF32_R_TYPE (irel
->r_info
))
11004 case R_NDS32_LO12S0_RELA
:
11005 reloc
= R_NDS32_SDA19S0_RELA
;
11007 case R_NDS32_LO12S1_RELA
:
11008 reloc
= R_NDS32_SDA18S1_RELA
;
11010 case R_NDS32_LO12S2_RELA
:
11011 reloc
= R_NDS32_SDA17S2_RELA
;
11013 case R_NDS32_LO12S2_DP_RELA
:
11014 range_l
= sdata_range
[0][0];
11015 range_h
= sdata_range
[0][1];
11016 reloc
= R_NDS32_SDA12S2_DP_RELA
;
11018 case R_NDS32_LO12S2_SP_RELA
:
11019 range_l
= sdata_range
[0][0];
11020 range_h
= sdata_range
[0][1];
11021 reloc
= R_NDS32_SDA12S2_SP_RELA
;
11027 /* There are range_h and range_l because linker has to promise
11028 all sections move cross one page together. */
11029 if ((local_sda
<= access_addr
&& (access_addr
- local_sda
) < range_h
)
11030 || (local_sda
> access_addr
&& (local_sda
- access_addr
) <= range_l
))
11032 if (N32_OP6 (insn
) == N32_OP6_ORI
&& N32_RT5 (insn
) == REG_GP
)
11034 /* Maybe we should add R_NDS32_INSN16 reloc type here
11035 or manually do some optimization. sethi can't be
11036 eliminated when updating $gp so the relative ori
11037 needs to be preserved. */
11040 if (!turn_insn_to_sda_access (insn
, ELF32_R_TYPE (irel
->r_info
),
11043 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11044 bfd_putb32 (insn
, contents
+ laddr
);
11046 irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11048 /* SDA17 must keep INSN16 for converting fp_as_gp. */
11049 if (irelfn
!= irelend
&& reloc
!= R_NDS32_SDA17S2_RELA
)
11051 ELF32_R_INFO (ELF32_R_SYM (irelfn
->r_info
), R_NDS32_NONE
);
11058 /* Relax low part of PIC instruction pattern. */
11061 nds32_elf_relax_piclo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11062 asection
*sec
, Elf_Internal_Rela
*irel
,
11063 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11064 Elf_Internal_Shdr
*symtab_hdr
)
11067 bfd_vma local_sda
, laddr
;
11068 bfd_signed_vma foff
;
11069 unsigned long reloc
;
11071 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11072 &local_sda
, FALSE
);
11073 laddr
= irel
->r_offset
;
11074 insn
= bfd_getb32 (contents
+ laddr
);
11076 if (N32_OP6 (insn
) != N32_OP6_ORI
)
11079 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
)
11081 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11082 symtab_hdr
) - local_sda
;
11083 reloc
= R_NDS32_GOT20
;
11085 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
)
11087 foff
= calculate_plt_memory_address (abfd
, link_info
, isymbuf
, irel
,
11088 symtab_hdr
) - local_sda
;
11089 reloc
= R_NDS32_PLT_GOTREL_LO20
;
11091 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
)
11093 foff
= calculate_memory_address (abfd
, irel
, isymbuf
,
11094 symtab_hdr
) - local_sda
;
11095 reloc
= R_NDS32_GOTOFF
;
11097 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
)
11099 foff
= local_sda
- sec
->output_section
->vma
+ sec
->output_offset
11100 + irel
->r_offset
+ irel
->r_addend
;
11101 reloc
= R_NDS32_GOTPC20
;
11106 if ((foff
< CONSERVATIVE_20BIT
) && (foff
>= -CONSERVATIVE_20BIT
))
11108 /* Turn into MOVI. */
11109 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11110 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11111 bfd_putb32 (insn
, contents
+ laddr
);
11115 /* Relax low part of LE TLS instruction pattern. */
11118 nds32_elf_relax_letlslo12 (struct bfd_link_info
*link_info
, bfd
*abfd
,
11119 Elf_Internal_Rela
*irel
,
11120 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11121 Elf_Internal_Shdr
*symtab_hdr
)
11125 bfd_signed_vma foff
;
11126 unsigned long reloc
;
11128 laddr
= irel
->r_offset
;
11129 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11130 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11131 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11132 insn
= bfd_getb32 (contents
+ laddr
);
11134 if ( (bfd_signed_vma
) (foff
) < CONSERVATIVE_20BIT
11135 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_20BIT
)
11137 /* Pattern sethi-ori transform to movi. */
11138 reloc
= R_NDS32_TLS_LE_20
;
11139 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), reloc
);
11140 insn
= N32_TYPE1 (MOVI
, N32_RT5 (insn
), 0);
11141 bfd_putb32 (insn
, contents
+ laddr
);
11145 /* Relax LE TLS calculate address instruction pattern. */
11148 nds32_elf_relax_letlsadd (struct bfd_link_info
*link_info
, bfd
*abfd
,
11149 asection
*sec
, Elf_Internal_Rela
*irel
,
11150 Elf_Internal_Rela
*internal_relocs
,
11151 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11152 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11154 /* Local TLS non-pic
11155 sethi ta, hi20(symbol@tpoff) ; TLS_LE_HI20
11156 ori ta, ta, lo12(symbol@tpoff) ; TLS_LE_LO12
11157 add ra, ta, tp ; TLS_LE_ADD */
11161 bfd_signed_vma foff
;
11162 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11164 irelend
= internal_relocs
+ sec
->reloc_count
;
11165 laddr
= irel
->r_offset
;
11166 insn
= bfd_getb32 (contents
+ laddr
);
11167 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11168 R_NDS32_PTR_RESOLVED
);
11169 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11170 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11171 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11173 /* The range is +/-16k. */
11174 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11175 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11177 /* Transform add to addi. */
11178 insn
= N32_TYPE2 (ADDI
, N32_RT5 (insn
), N32_RB5 (insn
), 0);
11180 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11182 bfd_putb32 (insn
, contents
+ laddr
);
11183 if (i1_irelfn
!= irelend
)
11185 i1_irelfn
->r_addend
|= 1;
11191 /* Relax LE TLS load store instruction pattern. */
11194 nds32_elf_relax_letlsls (struct bfd_link_info
*link_info
, bfd
*abfd
,
11195 asection
*sec
, Elf_Internal_Rela
*irel
,
11196 Elf_Internal_Rela
*internal_relocs
,
11197 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11198 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11203 bfd_signed_vma foff
;
11204 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11207 irelend
= internal_relocs
+ sec
->reloc_count
;
11208 laddr
= irel
->r_offset
;
11209 insn
= bfd_getb32 (contents
+ laddr
);
11210 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11211 R_NDS32_PTR_RESOLVED
);
11212 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11213 BFD_ASSERT (elf_hash_table (link_info
)->tls_sec
!= NULL
);
11214 foff
-= (elf_hash_table (link_info
)->tls_sec
->vma
+ TP_OFFSET
);
11216 switch ((N32_OP6 (insn
) << 8) | (insn
& 0xff))
11218 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11219 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11220 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11221 /* The range is +/-16k. */
11222 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT
11223 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT
)
11226 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11228 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S0
);
11232 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11233 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11234 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11235 /* The range is +/-32k. */
11236 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S1
11237 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S1
)
11240 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11242 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S1
);
11246 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11247 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11248 /* The range is +/-64k. */
11249 if ((bfd_signed_vma
) (foff
) < CONSERVATIVE_15BIT_S2
11250 && (bfd_signed_vma
) (foff
) >= -CONSERVATIVE_15BIT_S2
)
11253 ((insn
& 0xff) << 25) | (insn
& 0x1f00000) | ((insn
& 0x7c00) << 5);
11255 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_TLS_LE_15S2
);
11265 bfd_putb32 (insn
, contents
+ laddr
);
11266 if (i1_irelfn
!= irelend
)
11268 i1_irelfn
->r_addend
|= 1;
11274 /* Relax PTR relocation for nds32_elf_relax_section. */
11277 nds32_elf_relax_ptr (bfd
*abfd
, asection
*sec
, Elf_Internal_Rela
*irel
,
11278 Elf_Internal_Rela
*internal_relocs
, int *insn_len
,
11279 int *seq_len
, bfd_byte
*contents
)
11281 Elf_Internal_Rela
*ptr_irel
, *irelend
, *count_irel
, *re_irel
;
11283 irelend
= internal_relocs
+ sec
->reloc_count
;
11286 find_relocs_at_address_addr (irel
, internal_relocs
, irelend
,
11287 R_NDS32_PTR_RESOLVED
, irel
->r_addend
);
11289 if (re_irel
== irelend
)
11291 (*_bfd_error_handler
)
11292 ("%B: warning: R_NDS32_PTR points to unrecognized reloc at 0x%lx.",
11293 abfd
, (long) irel
->r_offset
);
11297 if (re_irel
->r_addend
!= 1)
11300 /* Pointed target is relaxed and no longer needs this void *,
11301 change the type to NONE. */
11302 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11304 /* Find PTR_COUNT to decide remove it or not. If PTR_COUNT does
11305 not exist, it means only count 1 and remove it directly. */
11306 /* TODO: I hope we can obsolate R_NDS32_COUNT in the future. */
11307 count_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11308 R_NDS32_PTR_COUNT
);
11309 ptr_irel
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11311 if (count_irel
!= irelend
)
11313 if (--count_irel
->r_addend
> 0)
11317 if (ptr_irel
!= irelend
)
11320 /* If the PTR_COUNT is already 0, remove current instruction. */
11321 *seq_len
= nds32_elf_insn_size (abfd
, contents
, irel
->r_offset
);
11326 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11329 nds32_elf_relax_pltgot_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11330 asection
*sec
, Elf_Internal_Rela
*irel
,
11331 Elf_Internal_Rela
*internal_relocs
,
11332 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11333 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11336 bfd_signed_vma foff
;
11337 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11338 bfd_vma local_sda
, laddr
;
11340 irelend
= internal_relocs
+ sec
->reloc_count
;
11341 laddr
= irel
->r_offset
;
11342 insn
= bfd_getb32 (contents
+ laddr
);
11344 /* FIXME: It's a little trouble to turn JRAL5 to JAL since
11345 we need additional space. It might be help if we could
11346 borrow some space from instructions to be eliminated
11347 such as sethi, ori, add. */
11348 if (insn
& 0x80000000)
11351 if (nds32_elf_check_dup_relocs
11352 (irel
, internal_relocs
, irelend
, R_NDS32_PLT_GOT_SUFF
))
11356 find_relocs_at_address (irel
, internal_relocs
, irelend
,
11357 R_NDS32_PTR_RESOLVED
);
11360 The boundary should be reduced since the .plt section hasn't
11361 been created and the address of specific entry is still unknown
11362 Maybe the range between the function call and the begin of the
11363 .text section can be used to decide if the .plt is in the range
11364 of function call. */
11366 if (N32_OP6 (insn
) == N32_OP6_ALU1
11367 && N32_SUB5 (insn
) == N32_ALU1_ADD
)
11369 /* Get the value of the symbol referred to by the reloc. */
11370 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11371 &local_sda
, FALSE
);
11372 foff
= (bfd_signed_vma
) (calculate_plt_memory_address
11373 (abfd
, link_info
, isymbuf
, irel
,
11374 symtab_hdr
) - local_sda
);
11375 /* This condition only happened when symbol is undefined. */
11379 if (foff
< -CONSERVATIVE_19BIT
|| foff
>= CONSERVATIVE_19BIT
)
11381 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11382 R_NDS32_PLT_GOTREL_LO19
);
11384 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11386 else if (N32_OP6 (insn
) == N32_OP6_JREG
11387 && N32_SUB5 (insn
) == N32_JREG_JRAL
)
11389 /* Get the value of the symbol referred to by the reloc. */
11391 calculate_plt_offset (abfd
, sec
, link_info
, isymbuf
, irel
, symtab_hdr
);
11392 /* This condition only happened when symbol is undefined. */
11395 if (foff
< -CONSERVATIVE_24BIT_S1
|| foff
>= CONSERVATIVE_24BIT_S1
)
11397 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_25_PLTREL
);
11403 bfd_putb32 (insn
, contents
+ laddr
);
11404 if (i1_irelfn
!= irelend
)
11406 i1_irelfn
->r_addend
|= 1;
11411 /* Relax GOT_SUFF relocation for nds32_elf_relax_section. */
11414 nds32_elf_relax_got_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11415 asection
*sec
, Elf_Internal_Rela
*irel
,
11416 Elf_Internal_Rela
*internal_relocs
,
11417 bfd_byte
*contents
, Elf_Internal_Shdr
*symtab_hdr
,
11418 bfd_boolean
*again
)
11421 bfd_signed_vma foff
;
11422 Elf_Internal_Rela
*i1_irelfn
, *irelend
;
11423 bfd_vma local_sda
, laddr
;
11425 irelend
= internal_relocs
+ sec
->reloc_count
;
11426 laddr
= irel
->r_offset
;
11427 insn
= bfd_getb32 (contents
+ laddr
);
11428 if (insn
& 0x80000000)
11431 if (nds32_elf_check_dup_relocs
11432 (irel
, internal_relocs
, irelend
, R_NDS32_GOT_SUFF
))
11435 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11436 R_NDS32_PTR_RESOLVED
);
11438 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11439 &local_sda
, FALSE
);
11440 foff
= calculate_got_memory_address (abfd
, link_info
, irel
,
11441 symtab_hdr
) - local_sda
;
11443 if (foff
< CONSERVATIVE_19BIT
&& foff
>= -CONSERVATIVE_19BIT
)
11445 /* Turn LW to LWI.GP. Change relocation type to R_NDS32_GOT_REL. */
11446 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11448 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_GOT17S2_RELA
);
11449 bfd_putb32 (insn
, contents
+ laddr
);
11450 if (i1_irelfn
!= irelend
)
11452 i1_irelfn
->r_addend
|= 1;
11458 /* Relax PLT_GOT_SUFF relocation for nds32_elf_relax_section. */
11461 nds32_elf_relax_gotoff_suff (struct bfd_link_info
*link_info
, bfd
*abfd
,
11462 asection
*sec
, Elf_Internal_Rela
*irel
,
11463 Elf_Internal_Rela
*internal_relocs
,
11464 bfd_byte
*contents
, Elf_Internal_Sym
*isymbuf
,
11465 Elf_Internal_Shdr
*symtab_hdr
, bfd_boolean
*again
)
11467 int opc_insn_gotoff
;
11469 bfd_signed_vma foff
;
11470 Elf_Internal_Rela
*i1_irelfn
, *i2_irelfn
, *irelend
;
11471 bfd_vma local_sda
, laddr
;
11473 irelend
= internal_relocs
+ sec
->reloc_count
;
11474 laddr
= irel
->r_offset
;
11475 insn
= bfd_getb32 (contents
+ laddr
);
11477 if (insn
& 0x80000000)
11480 if (nds32_elf_check_dup_relocs
11481 (irel
, internal_relocs
, irelend
, R_NDS32_GOTOFF_SUFF
))
11484 i1_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11485 R_NDS32_PTR_RESOLVED
);
11486 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
11487 &local_sda
, FALSE
);
11488 foff
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
11489 foff
= foff
- local_sda
;
11491 if (foff
>= CONSERVATIVE_19BIT
|| foff
< -CONSERVATIVE_19BIT
)
11494 /* Concatenate opcode and sub-opcode for switch case.
11495 It may be MEM or ALU1. */
11496 opc_insn_gotoff
= (N32_OP6 (insn
) << 8) | (insn
& 0xff);
11497 switch (opc_insn_gotoff
)
11499 case (N32_OP6_MEM
<< 8) | N32_MEM_LW
:
11500 /* 4-byte aligned. */
11501 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (6, 17, 3));
11503 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11505 case (N32_OP6_MEM
<< 8) | N32_MEM_SW
:
11506 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __MF (7, 17, 3));
11508 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA17S2_RELA
);
11510 case (N32_OP6_MEM
<< 8) | N32_MEM_LH
:
11511 /* 2-byte aligned. */
11512 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), 0);
11514 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11516 case (N32_OP6_MEM
<< 8) | N32_MEM_LHS
:
11517 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (18));
11519 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11521 case (N32_OP6_MEM
<< 8) | N32_MEM_SH
:
11522 insn
= N32_TYPE1 (HWGP
, N32_RT5 (insn
), __BIT (19));
11524 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA18S1_RELA
);
11526 case (N32_OP6_MEM
<< 8) | N32_MEM_LB
:
11527 /* 1-byte aligned. */
11528 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), 0);
11530 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11532 case (N32_OP6_MEM
<< 8) | N32_MEM_LBS
:
11533 insn
= N32_TYPE1 (LBGP
, N32_RT5 (insn
), __BIT (19));
11535 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11537 case (N32_OP6_MEM
<< 8) | N32_MEM_SB
:
11538 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), 0);
11540 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11542 case (N32_OP6_ALU1
<< 8) | N32_ALU1_ADD
:
11543 insn
= N32_TYPE1 (SBGP
, N32_RT5 (insn
), __BIT (19));
11545 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_SDA19S0_RELA
);
11551 bfd_putb32 (insn
, contents
+ laddr
);
11552 if (i1_irelfn
!= irelend
)
11554 i1_irelfn
->r_addend
|= 1;
11557 if ((i2_irelfn
= find_relocs_at_address (irel
, internal_relocs
, irelend
,
11558 R_NDS32_INSN16
)) != irelend
)
11559 i2_irelfn
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11564 nds32_relax_adjust_label (bfd
*abfd
, asection
*sec
,
11565 Elf_Internal_Rela
*internal_relocs
,
11566 bfd_byte
*contents
,
11567 nds32_elf_blank_t
**relax_blank_list
,
11568 int optimize
, int opt_size
)
11570 /* This code block is used to adjust 4-byte alignment by relax a pair
11571 of instruction a time.
11573 It recognizes three types of relocations.
11574 1. R_NDS32_LABEL - a aligment.
11575 2. R_NDS32_INSN16 - relax a 32-bit instruction to 16-bit.
11576 3. is_16bit_NOP () - remove a 16-bit instruction. */
11578 /* TODO: It seems currently implementation only support 4-byte aligment.
11579 We should handle any-aligment. */
11581 Elf_Internal_Rela
*insn_rel
= NULL
, *label_rel
= NULL
, *irel
;
11582 Elf_Internal_Rela
*tmp_rel
, *tmp2_rel
= NULL
;
11583 Elf_Internal_Rela rel_temp
;
11584 Elf_Internal_Rela
*irelend
;
11588 /* Checking for branch relaxation relies on the relocations to
11589 be sorted on 'r_offset'. This is not guaranteed so we must sort. */
11590 nds32_insertion_sort (internal_relocs
, sec
->reloc_count
,
11591 sizeof (Elf_Internal_Rela
), compar_reloc
);
11593 irelend
= internal_relocs
+ sec
->reloc_count
;
11595 /* Force R_NDS32_LABEL before R_NDS32_INSN16. */
11596 /* FIXME: Can we generate the right order in assembler?
11597 So we don't have to swapping them here. */
11599 for (label_rel
= internal_relocs
, insn_rel
= internal_relocs
;
11600 label_rel
< irelend
; label_rel
++)
11602 if (ELF32_R_TYPE (label_rel
->r_info
) != R_NDS32_LABEL
)
11605 /* Find the first reloc has the same offset with label_rel. */
11606 while (insn_rel
< irelend
&& insn_rel
->r_offset
< label_rel
->r_offset
)
11609 for (;insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
;
11611 /* Check if there were R_NDS32_INSN16 and R_NDS32_LABEL at the same
11613 if (ELF32_R_TYPE (insn_rel
->r_info
) == R_NDS32_INSN16
)
11616 if (insn_rel
< irelend
&& insn_rel
->r_offset
== label_rel
->r_offset
11617 && insn_rel
< label_rel
)
11619 /* Swap the two reloc if the R_NDS32_INSN16 is
11620 before R_NDS32_LABEL. */
11621 memcpy (&rel_temp
, insn_rel
, sizeof (Elf_Internal_Rela
));
11622 memcpy (insn_rel
, label_rel
, sizeof (Elf_Internal_Rela
));
11623 memcpy (label_rel
, &rel_temp
, sizeof (Elf_Internal_Rela
));
11629 /* If there were a sequence of R_NDS32_LABEL end up with .align 2
11630 or higher, remove other R_NDS32_LABEL with lower alignment.
11631 If an R_NDS32_INSN16 in between R_NDS32_LABELs must be converted,
11632 then the R_NDS32_LABEL sequence is broke. */
11633 for (tmp_rel
= internal_relocs
; tmp_rel
< irelend
; tmp_rel
++)
11635 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_LABEL
)
11637 if (label_rel
== NULL
)
11639 if (tmp_rel
->r_addend
< 2)
11640 label_rel
= tmp_rel
;
11643 else if (tmp_rel
->r_addend
> 1)
11645 /* Remove all LABEL relocation from label_rel to tmp_rel
11646 including relocations with same offset as tmp_rel. */
11647 for (tmp2_rel
= label_rel
; tmp2_rel
< tmp_rel
11648 || tmp2_rel
->r_offset
== tmp_rel
->r_offset
; tmp2_rel
++)
11650 if (ELF32_R_TYPE (tmp2_rel
->r_info
) == R_NDS32_LABEL
11651 && tmp2_rel
->r_addend
< 2)
11653 ELF32_R_INFO (ELF32_R_SYM (tmp2_rel
->r_info
),
11659 else if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
&& label_rel
)
11661 /* A new INSN16 which can be converted, so clear label_rel. */
11662 if (is_convert_32_to_16 (abfd
, sec
, tmp_rel
, internal_relocs
,
11664 || is_16bit_NOP (abfd
, sec
, tmp_rel
))
11671 /* Optimized for speed and nothing has not been relaxed.
11672 It's time to align labels.
11673 We may convert a 16-bit instruction right before a label to
11674 32-bit, in order to align the label if necessary
11675 all reloc entries has been sorted by r_offset. */
11676 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
11678 if (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_INSN16
11679 && ELF32_R_TYPE (irel
->r_info
) != R_NDS32_LABEL
)
11682 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_INSN16
)
11684 /* A new INSN16 found, resize the old one. */
11685 if (is_convert_32_to_16
11686 (abfd
, sec
, irel
, internal_relocs
, irelend
, &insn16
)
11687 || is_16bit_NOP (abfd
, sec
, irel
))
11691 /* Previous INSN16 reloc exists, reduce its
11693 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11696 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11697 internal_relocs
, irelend
, insn16
);
11699 if (!insert_nds32_elf_blank_recalc_total
11700 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11703 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11705 if (!insert_nds32_elf_blank_recalc_total
11706 (relax_blank_list
, insn_rel
->r_offset
, 2))
11710 ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
), R_NDS32_NONE
);
11712 /* Save the new one for later use. */
11716 irel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
),
11719 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
)
11721 /* Search for label. */
11722 int force_relax
= 0;
11724 /* Label on 16-bit instruction or optimization
11725 needless, just reset this reloc. */
11726 insn16
= bfd_getb16 (contents
+ irel
->r_offset
);
11727 if ((irel
->r_addend
& 0x1f) < 2 && (!optimize
|| (insn16
& 0x8000)))
11730 ELF32_R_INFO (ELF32_R_SYM (irel
->r_info
), R_NDS32_NONE
);
11735 irel
->r_offset
- get_nds32_elf_blank_total (relax_blank_list
,
11736 irel
->r_offset
, 1);
11740 /* Check if there is case which can not be aligned. */
11741 if (irel
->r_addend
== 2 && address
& 0x2)
11746 /* Try to align this label. */
11748 if ((irel
->r_addend
& 0x1f) < 2)
11750 /* Check if there is a INSN16 at the same address.
11751 Label_rel always seats before insn_rel after
11754 /* Search for INSN16 at LABEL location. If INSN16 is at
11755 same location and this LABEL alignment is lower than 2,
11756 the INSN16 can be converted to 2-byte. */
11757 for (tmp_rel
= irel
;
11758 tmp_rel
< irelend
&& tmp_rel
->r_offset
== irel
->r_offset
;
11761 if (ELF32_R_TYPE (tmp_rel
->r_info
) == R_NDS32_INSN16
11762 && (is_convert_32_to_16
11763 (abfd
, sec
, tmp_rel
, internal_relocs
,
11765 || is_16bit_NOP (abfd
, sec
, tmp_rel
)))
11773 if (force_relax
|| irel
->r_addend
== 1 || address
& 0x2)
11775 /* Label not aligned. */
11776 /* Previous reloc exists, reduce its size to 16-bit. */
11777 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
,
11778 internal_relocs
, irelend
, &insn16
))
11780 nds32_elf_write_16 (abfd
, contents
, insn_rel
,
11781 internal_relocs
, irelend
, insn16
);
11783 if (!insert_nds32_elf_blank_recalc_total
11784 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11787 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11789 if (!insert_nds32_elf_blank_recalc_total
11790 (relax_blank_list
, insn_rel
->r_offset
, 2))
11795 /* INSN16 reloc is used. */
11801 sec
->size
- get_nds32_elf_blank_total (relax_blank_list
, sec
->size
, 0);
11802 if (insn_rel
&& (address
& 0x2 || opt_size
))
11804 if (is_convert_32_to_16 (abfd
, sec
, insn_rel
, internal_relocs
,
11807 nds32_elf_write_16 (abfd
, contents
, insn_rel
, internal_relocs
,
11809 if (!insert_nds32_elf_blank_recalc_total
11810 (relax_blank_list
, insn_rel
->r_offset
+ 2, 2))
11812 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11815 else if (is_16bit_NOP (abfd
, sec
, insn_rel
))
11817 if (!insert_nds32_elf_blank_recalc_total
11818 (relax_blank_list
, insn_rel
->r_offset
, 2))
11820 insn_rel
->r_info
= ELF32_R_INFO (ELF32_R_SYM (insn_rel
->r_info
),
11828 /* Pick relaxation round. */
11831 nds32_elf_pick_relax (bfd_boolean init
, asection
*sec
, bfd_boolean
*again
,
11832 struct elf_nds32_link_hash_table
*table
,
11833 struct bfd_link_info
*link_info
)
11835 static asection
*final_sec
, *first_sec
= NULL
;
11836 static bfd_boolean normal_again
= FALSE
;
11837 static bfd_boolean set
= FALSE
;
11838 static bfd_boolean first
= TRUE
;
11839 int round_table
[] = {
11840 NDS32_RELAX_NORMAL_ROUND
,
11841 NDS32_RELAX_JUMP_IFC_ROUND
,
11842 NDS32_RELAX_EX9_BUILD_ROUND
,
11843 NDS32_RELAX_EX9_REPLACE_ROUND
,
11845 static int pass
= 0;
11846 static int relax_round
;
11848 /* The new round. */
11849 if (init
&& first_sec
== sec
)
11852 normal_again
= FALSE
;
11857 /* Run an empty run to get the final section. */
11858 relax_round
= NDS32_RELAX_EMPTY_ROUND
;
11860 /* It has to enter relax again because we can
11861 not make sure what the final turn is. */
11870 /* Not reenter yet. */
11872 return relax_round
;
11875 relax_round
= round_table
[pass
];
11877 if (!init
&& relax_round
== NDS32_RELAX_NORMAL_ROUND
&& *again
)
11878 normal_again
= TRUE
;
11880 if (!init
&& final_sec
== sec
)
11882 switch (relax_round
)
11884 case NDS32_RELAX_NORMAL_ROUND
:
11887 /* Normal relaxation done. */
11888 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11893 else if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11895 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11898 else if (table
->ex9_import_file
)
11900 /* Import ex9 table. */
11901 if (table
->update_ex9_table
)
11902 pass
+= 2; /* NDS32_RELAX_EX9_BUILD_ROUND */
11904 pass
+= 3; /* NDS32_RELAX_EX9_REPLACE_ROUND */
11905 nds32_elf_ex9_import_table (link_info
);
11910 case NDS32_RELAX_JUMP_IFC_ROUND
:
11911 if (!nds32_elf_ifc_finish (link_info
))
11912 (*_bfd_error_handler
) (_("error: Jump IFC Fail."));
11913 if (table
->target_optimize
& NDS32_RELAX_EX9_ON
)
11919 case NDS32_RELAX_EX9_BUILD_ROUND
:
11920 nds32_elf_ex9_finish (link_info
);
11924 case NDS32_RELAX_EX9_REPLACE_ROUND
:
11925 if (table
->target_optimize
& NDS32_RELAX_JUMP_IFC_ON
)
11927 /* Do jump IFC optimization again. */
11928 if (!nds32_elf_ifc_finish (link_info
))
11929 (*_bfd_error_handler
) (_("error: Jump IFC Fail."));
11937 return relax_round
;
11941 nds32_elf_relax_section (bfd
*abfd
, asection
*sec
,
11942 struct bfd_link_info
*link_info
, bfd_boolean
*again
)
11944 nds32_elf_blank_t
*relax_blank_list
= NULL
;
11945 Elf_Internal_Shdr
*symtab_hdr
;
11946 Elf_Internal_Rela
*internal_relocs
;
11947 Elf_Internal_Rela
*irel
;
11948 Elf_Internal_Rela
*irelend
;
11949 Elf_Internal_Sym
*isymbuf
= NULL
;
11950 bfd_byte
*contents
= NULL
;
11951 bfd_boolean result
= TRUE
;
11957 /* Target dependnet option. */
11958 struct elf_nds32_link_hash_table
*table
;
11959 int load_store_relax
;
11962 relax_blank_list
= NULL
;
11966 /* Nothing to do for
11967 * relocatable link or
11968 * non-relocatable section or
11969 * non-code section or
11971 * no reloc entry. */
11972 if (bfd_link_relocatable (link_info
)
11973 || (sec
->flags
& SEC_RELOC
) == 0
11974 || (sec
->flags
& SEC_EXCLUDE
) == 1
11975 || (sec
->flags
& SEC_CODE
) == 0
11979 /* 09.12.11 Workaround. */
11980 /* We have to adjust align for R_NDS32_LABEL if needed.
11981 The adjust approach only can fix 2-byte align once. */
11982 if (sec
->alignment_power
> 2)
11985 /* The optimization type to do. */
11987 table
= nds32_elf_hash_table (link_info
);
11988 relax_round
= nds32_elf_pick_relax (TRUE
, sec
, again
, table
, link_info
);
11989 switch (relax_round
)
11991 case NDS32_RELAX_JUMP_IFC_ROUND
:
11992 /* Here is the entrance of ifc jump relaxation. */
11993 if (!nds32_elf_ifc_calc (link_info
, abfd
, sec
))
11995 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
11998 case NDS32_RELAX_EX9_BUILD_ROUND
:
11999 /* Here is the entrance of ex9 relaxation. There are two pass of
12000 ex9 relaxation. The one is to traverse all instructions and build
12001 the hash table. The other one is to compare instructions and replace
12003 if (!nds32_elf_ex9_build_hash_table (abfd
, sec
, link_info
))
12005 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12008 case NDS32_RELAX_EX9_REPLACE_ROUND
:
12009 if (!nds32_elf_ex9_replace_instruction (link_info
, abfd
, sec
))
12013 case NDS32_RELAX_EMPTY_ROUND
:
12014 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12017 case NDS32_RELAX_NORMAL_ROUND
:
12019 if (sec
->reloc_count
== 0)
12024 /* The begining of general relaxation. */
12026 if (is_SDA_BASE_set
== 0)
12029 is_SDA_BASE_set
= 1;
12030 nds32_elf_final_sda_base (sec
->output_section
->owner
, link_info
,
12032 relax_range_measurement (abfd
);
12035 if (is_ITB_BASE_set
== 0)
12037 /* Set the _ITB_BASE_. */
12038 if (!nds32_elf_ex9_itb_base (link_info
))
12040 (*_bfd_error_handler
) (_("%B: error: Cannot set _ITB_BASE_"), abfd
);
12041 bfd_set_error (bfd_error_bad_value
);
12045 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12046 /* Relocations MUST be kept in memory, because relaxation adjust them. */
12047 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
12048 TRUE
/* keep_memory */);
12049 if (internal_relocs
== NULL
)
12052 irelend
= internal_relocs
+ sec
->reloc_count
;
12053 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12054 irelend
, R_NDS32_RELAX_ENTRY
);
12056 if (irel
== irelend
)
12059 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
)
12061 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
)
12063 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12067 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FLAG
)
12070 if (irel
->r_addend
& R_NDS32_RELAX_ENTRY_OPTIMIZE_FOR_SPACE_FLAG
)
12074 load_store_relax
= table
->load_store_relax
;
12076 /* Get symbol table and section content. */
12077 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12078 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12081 /* Do relax loop only when finalize is not done.
12082 Take care of relaxable relocs except INSN16. */
12083 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12085 int seq_len
; /* Original length of instruction sequence. */
12086 int insn_len
= 0; /* Final length of instruction sequence. */
12087 bfd_boolean removed
;
12090 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
12091 && (irel
->r_addend
& 0x1f) >= 2)
12094 /* Relocation Types
12095 R_NDS32_LONGCALL1 53
12096 R_NDS32_LONGCALL2 54
12097 R_NDS32_LONGCALL3 55
12098 R_NDS32_LONGJUMP1 56
12099 R_NDS32_LONGJUMP2 57
12100 R_NDS32_LONGJUMP3 58
12101 R_NDS32_LOADSTORE 59 */
12102 if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL1
12103 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LOADSTORE
)
12104 seq_len
= GET_SEQ_LEN (irel
->r_addend
);
12106 /* Relocation Types
12107 R_NDS32_LONGCALL4 107
12108 R_NDS32_LONGCALL5 108
12109 R_NDS32_LONGCALL6 109
12110 R_NDS32_LONGJUMP4 110
12111 R_NDS32_LONGJUMP5 111
12112 R_NDS32_LONGJUMP6 112
12113 R_NDS32_LONGJUMP7 113 */
12114 else if (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LONGCALL4
12115 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LONGJUMP7
)
12118 /* Relocation Types
12119 R_NDS32_LO12S0_RELA 30
12120 R_NDS32_LO12S1_RELA 29
12121 R_NDS32_LO12S2_RELA 28
12122 R_NDS32_LO12S2_SP_RELA 71
12123 R_NDS32_LO12S2_DP_RELA 70
12124 R_NDS32_GOT_LO12 46
12125 R_NDS32_GOTOFF_LO12 50
12126 R_NDS32_PLTREL_LO12 65
12127 R_NDS32_PLT_GOTREL_LO12 67
12128 R_NDS32_17IFC_PCREL_RELA 96
12129 R_NDS32_GOT_SUFF 193
12130 R_NDS32_GOTOFF_SUFF 194
12131 R_NDS32_PLT_GOT_SUFF 195
12132 R_NDS32_MULCALL_SUFF 196
12134 else if ((ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_LO12S0_RELA
12135 && ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_LO12S2_RELA
)
12136 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_SP_RELA
12137 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_DP_RELA
12138 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOT_LO12
12139 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTOFF_LO12
12140 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_GOTPC_LO12
12141 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLTREL_LO12
12142 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_PLT_GOTREL_LO12
12143 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_GOT_SUFF
12144 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_PTR
)
12145 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12146 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LO12
12147 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_ADD
12148 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_TLS_LE_LS
)
12153 insn_len
= seq_len
;
12156 switch (ELF32_R_TYPE (irel
->r_info
))
12158 case R_NDS32_LONGCALL1
:
12159 removed
= nds32_elf_relax_longcall1 (abfd
, sec
, irel
, internal_relocs
,
12160 &insn_len
, contents
, isymbuf
,
12163 case R_NDS32_LONGCALL2
:
12164 removed
= nds32_elf_relax_longcall2 (abfd
, sec
, irel
, internal_relocs
,
12165 &insn_len
, contents
, isymbuf
,
12168 case R_NDS32_LONGCALL3
:
12169 removed
= nds32_elf_relax_longcall3 (abfd
, sec
, irel
, internal_relocs
,
12170 &insn_len
, contents
, isymbuf
,
12173 case R_NDS32_LONGJUMP1
:
12174 removed
= nds32_elf_relax_longjump1 (abfd
, sec
, irel
, internal_relocs
,
12175 &insn_len
, contents
, isymbuf
,
12178 case R_NDS32_LONGJUMP2
:
12179 removed
= nds32_elf_relax_longjump2 (abfd
, sec
, irel
, internal_relocs
,
12180 &insn_len
, contents
, isymbuf
,
12183 case R_NDS32_LONGJUMP3
:
12184 removed
= nds32_elf_relax_longjump3 (abfd
, sec
, irel
, internal_relocs
,
12185 &insn_len
, contents
, isymbuf
,
12188 case R_NDS32_LONGCALL4
:
12189 removed
= nds32_elf_relax_longcall4 (abfd
, sec
, irel
, internal_relocs
,
12190 &insn_len
, contents
, isymbuf
,
12193 case R_NDS32_LONGCALL5
:
12194 removed
= nds32_elf_relax_longcall5 (abfd
, sec
, irel
, internal_relocs
,
12195 &insn_len
, contents
, isymbuf
,
12198 case R_NDS32_LONGCALL6
:
12199 removed
= nds32_elf_relax_longcall6 (abfd
, sec
, irel
, internal_relocs
,
12200 &insn_len
, contents
, isymbuf
,
12203 case R_NDS32_LONGJUMP4
:
12204 removed
= nds32_elf_relax_longjump4 (abfd
, sec
, irel
, internal_relocs
,
12205 &insn_len
, contents
, isymbuf
,
12208 case R_NDS32_LONGJUMP5
:
12209 removed
= nds32_elf_relax_longjump5 (abfd
, sec
, irel
, internal_relocs
,
12210 &insn_len
, &seq_len
, contents
,
12211 isymbuf
, symtab_hdr
);
12213 case R_NDS32_LONGJUMP6
:
12214 removed
= nds32_elf_relax_longjump6 (abfd
, sec
, irel
, internal_relocs
,
12215 &insn_len
, &seq_len
, contents
,
12216 isymbuf
, symtab_hdr
);
12218 case R_NDS32_LONGJUMP7
:
12219 removed
= nds32_elf_relax_longjump7 (abfd
, sec
, irel
, internal_relocs
,
12220 &insn_len
, &seq_len
, contents
,
12221 isymbuf
, symtab_hdr
);
12223 case R_NDS32_LOADSTORE
:
12224 removed
= nds32_elf_relax_loadstore (link_info
, abfd
, sec
, irel
,
12225 internal_relocs
, &insn_len
,
12226 contents
, isymbuf
, symtab_hdr
,
12229 case R_NDS32_LO12S0_RELA
:
12230 case R_NDS32_LO12S1_RELA
:
12231 case R_NDS32_LO12S2_DP_RELA
:
12232 case R_NDS32_LO12S2_SP_RELA
:
12233 case R_NDS32_LO12S2_RELA
:
12234 /* Relax for low part. */
12235 nds32_elf_relax_lo12 (link_info
, abfd
, sec
, irel
, internal_relocs
,
12236 contents
, isymbuf
, symtab_hdr
);
12238 /* It is impossible to delete blank, so just continue. */
12240 case R_NDS32_GOT_LO12
:
12241 case R_NDS32_GOTOFF_LO12
:
12242 case R_NDS32_PLTREL_LO12
:
12243 case R_NDS32_PLT_GOTREL_LO12
:
12244 case R_NDS32_GOTPC_LO12
:
12245 /* Relax for PIC gp-relative low part. */
12246 nds32_elf_relax_piclo12 (link_info
, abfd
, sec
, irel
, contents
,
12247 isymbuf
, symtab_hdr
);
12249 /* It is impossible to delete blank, so just continue. */
12251 case R_NDS32_TLS_LE_LO12
:
12252 /* Relax for LE TLS low part. */
12253 nds32_elf_relax_letlslo12 (link_info
, abfd
, irel
, contents
,
12254 isymbuf
, symtab_hdr
);
12256 /* It is impossible to delete blank, so just continue. */
12258 case R_NDS32_TLS_LE_ADD
:
12259 nds32_elf_relax_letlsadd (link_info
, abfd
, sec
, irel
, internal_relocs
,
12260 contents
, isymbuf
, symtab_hdr
, again
);
12261 /* It is impossible to delete blank, so just continue. */
12263 case R_NDS32_TLS_LE_LS
:
12264 nds32_elf_relax_letlsls (link_info
, abfd
, sec
, irel
, internal_relocs
,
12265 contents
, isymbuf
, symtab_hdr
, again
);
12268 removed
= nds32_elf_relax_ptr (abfd
, sec
, irel
, internal_relocs
,
12269 &insn_len
, &seq_len
, contents
);
12271 case R_NDS32_PLT_GOT_SUFF
:
12272 nds32_elf_relax_pltgot_suff (link_info
, abfd
, sec
, irel
,
12273 internal_relocs
, contents
,
12274 isymbuf
, symtab_hdr
, again
);
12275 /* It is impossible to delete blank, so just continue. */
12277 case R_NDS32_GOT_SUFF
:
12278 nds32_elf_relax_got_suff (link_info
, abfd
, sec
, irel
,
12279 internal_relocs
, contents
,
12280 symtab_hdr
, again
);
12281 /* It is impossible to delete blank, so just continue. */
12283 case R_NDS32_GOTOFF_SUFF
:
12284 nds32_elf_relax_gotoff_suff (link_info
, abfd
, sec
, irel
,
12285 internal_relocs
, contents
,
12286 isymbuf
, symtab_hdr
, again
);
12287 /* It is impossible to delete blank, so just continue. */
12293 if (removed
&& seq_len
- insn_len
> 0)
12295 if (!insert_nds32_elf_blank
12296 (&relax_blank_list
, irel
->r_offset
+ insn_len
,
12297 seq_len
- insn_len
))
12303 calc_nds32_blank_total (relax_blank_list
);
12305 if (table
->relax_fp_as_gp
)
12307 if (!nds32_relax_fp_as_gp (link_info
, abfd
, sec
, internal_relocs
,
12311 if (*again
== FALSE
)
12313 if (!nds32_fag_remove_unused_fpbase (abfd
, sec
, internal_relocs
,
12319 nds32_elf_pick_relax (FALSE
, sec
, again
, table
, link_info
);
12321 if (*again
== FALSE
)
12323 if (!nds32_relax_adjust_label (abfd
, sec
, internal_relocs
, contents
,
12324 &relax_blank_list
, optimize
, opt_size
))
12328 /* It doesn't matter optimize_for_space_no_align anymore.
12329 If object file is assembled with flag '-Os',
12330 the we don't adjust jump-destination on 4-byte boundary. */
12332 if (relax_blank_list
)
12334 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12335 relax_blank_list
= NULL
;
12338 if (*again
== FALSE
)
12340 /* Closing the section, so we don't relax it anymore. */
12341 bfd_vma sec_size_align
;
12342 Elf_Internal_Rela
*tmp_rel
;
12344 /* Pad to alignment boundary. Only handle current section alignment. */
12345 sec_size_align
= (sec
->size
+ (~((-1U) << sec
->alignment_power
)))
12346 & ((-1U) << sec
->alignment_power
);
12347 if ((sec_size_align
- sec
->size
) & 0x2)
12349 insn16
= NDS32_NOP16
;
12350 bfd_putb16 (insn16
, contents
+ sec
->size
);
12354 while (sec_size_align
!= sec
->size
)
12356 insn
= NDS32_NOP32
;
12357 bfd_putb32 (insn
, contents
+ sec
->size
);
12361 tmp_rel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
12362 irelend
, R_NDS32_RELAX_ENTRY
);
12363 if (tmp_rel
!= irelend
)
12364 tmp_rel
->r_addend
|= R_NDS32_RELAX_ENTRY_DISABLE_RELAX_FLAG
;
12366 clean_nds32_elf_blank ();
12370 if (internal_relocs
!= NULL
12371 && elf_section_data (sec
)->relocs
!= internal_relocs
)
12372 free (internal_relocs
);
12374 if (contents
!= NULL
12375 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
12378 if (isymbuf
!= NULL
&& symtab_hdr
->contents
!= (bfd_byte
*) isymbuf
)
12388 static struct bfd_elf_special_section
const nds32_elf_special_sections
[] =
12390 {".sdata", 6, -2, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
},
12391 {".sbss", 5, -2, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
},
12396 nds32_elf_output_arch_syms (bfd
*output_bfd ATTRIBUTE_UNUSED
,
12397 struct bfd_link_info
*info
,
12398 void *finfo ATTRIBUTE_UNUSED
,
12399 bfd_boolean (*func
) (void *, const char *,
12400 Elf_Internal_Sym
*,
12402 struct elf_link_hash_entry
*)
12405 FILE *sym_ld_script
= NULL
;
12406 struct elf_nds32_link_hash_table
*table
;
12408 table
= nds32_elf_hash_table (info
);
12409 sym_ld_script
= table
->sym_ld_script
;
12411 if (check_start_export_sym
)
12412 fprintf (sym_ld_script
, "}\n");
12417 static enum elf_reloc_type_class
12418 nds32_elf_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
12419 const asection
*rel_sec ATTRIBUTE_UNUSED
,
12420 const Elf_Internal_Rela
*rela
)
12422 switch ((int) ELF32_R_TYPE (rela
->r_info
))
12424 case R_NDS32_RELATIVE
:
12425 return reloc_class_relative
;
12426 case R_NDS32_JMP_SLOT
:
12427 return reloc_class_plt
;
12429 return reloc_class_copy
;
12431 return reloc_class_normal
;
12435 /* Put target dependent option into info hash table. */
12437 bfd_elf32_nds32_set_target_option (struct bfd_link_info
*link_info
,
12438 int relax_fp_as_gp
,
12439 int eliminate_gc_relocs
,
12440 FILE * sym_ld_script
, int load_store_relax
,
12441 int target_optimize
, int relax_status
,
12442 int relax_round
, FILE * ex9_export_file
,
12443 FILE * ex9_import_file
,
12444 int update_ex9_table
, int ex9_limit
,
12445 bfd_boolean ex9_loop_aware
,
12446 bfd_boolean ifc_loop_aware
)
12448 struct elf_nds32_link_hash_table
*table
;
12450 table
= nds32_elf_hash_table (link_info
);
12454 table
->relax_fp_as_gp
= relax_fp_as_gp
;
12455 table
->eliminate_gc_relocs
= eliminate_gc_relocs
;
12456 table
->sym_ld_script
= sym_ld_script
;
12457 table
->load_store_relax
= load_store_relax
;
12458 table
->target_optimize
= target_optimize
;
12459 table
->relax_status
= relax_status
;
12460 table
->relax_round
= relax_round
;
12461 table
->ex9_export_file
= ex9_export_file
;
12462 table
->ex9_import_file
= ex9_import_file
;
12463 table
->update_ex9_table
= update_ex9_table
;
12464 table
->ex9_limit
= ex9_limit
;
12465 table
->ex9_loop_aware
= ex9_loop_aware
;
12466 table
->ifc_loop_aware
= ifc_loop_aware
;
12469 /* These functions and data-structures are used for fp-as-gp
12472 #define FAG_THRESHOLD 3 /* At least 3 gp-access. */
12473 /* lwi37.fp covers 508 bytes, but there may be 32-byte padding between
12474 the read-only section and read-write section. */
12475 #define FAG_WINDOW (508 - 32)
12477 /* An nds32_fag represent a gp-relative access.
12478 We find best fp-base by using a sliding window
12479 to find a base address which can cover most gp-access. */
12482 struct nds32_fag
*next
; /* NULL-teminated linked list. */
12483 bfd_vma addr
; /* The address of this fag. */
12484 Elf_Internal_Rela
**relas
; /* The relocations associated with this fag.
12485 It is used for applying FP7U2_FLAG. */
12486 int count
; /* How many times this address is referred.
12487 There should be exactly `count' relocations
12489 int relas_capcity
; /* The buffer size of relas.
12490 We use an array instead of linked-list,
12491 and realloc is used to adjust buffer size. */
12495 nds32_fag_init (struct nds32_fag
*head
)
12497 memset (head
, 0, sizeof (struct nds32_fag
));
12501 nds32_fag_verify (struct nds32_fag
*head
)
12503 struct nds32_fag
*iter
;
12504 struct nds32_fag
*prev
;
12510 if (prev
&& prev
->addr
>= iter
->addr
)
12511 puts ("Bug in fp-as-gp insertion.");
12517 /* Insert a fag in ascending order.
12518 If a fag of the same address already exists,
12519 they are chained by relas array. */
12522 nds32_fag_insert (struct nds32_fag
*head
, bfd_vma addr
,
12523 Elf_Internal_Rela
* rel
)
12525 struct nds32_fag
*iter
;
12526 struct nds32_fag
*new_fag
;
12527 const int INIT_RELAS_CAP
= 4;
12530 iter
->next
&& iter
->next
->addr
<= addr
;
12532 /* Find somewhere to insert. */ ;
12534 /* `iter' will be equal to `head' if the list is empty. */
12535 if (iter
!= head
&& iter
->addr
== addr
)
12537 /* The address exists in the list.
12538 Insert `rel' into relocation list, relas. */
12540 /* Check whether relas is big enough. */
12541 if (iter
->count
>= iter
->relas_capcity
)
12543 iter
->relas_capcity
*= 2;
12544 iter
->relas
= bfd_realloc
12545 (iter
->relas
, iter
->relas_capcity
* sizeof (void *));
12547 iter
->relas
[iter
->count
++] = rel
;
12551 /* This is a new address. Create a fag node for it. */
12552 new_fag
= bfd_malloc (sizeof (struct nds32_fag
));
12553 memset (new_fag
, 0, sizeof (*new_fag
));
12554 new_fag
->addr
= addr
;
12555 new_fag
->count
= 1;
12556 new_fag
->next
= iter
->next
;
12557 new_fag
->relas_capcity
= INIT_RELAS_CAP
;
12558 new_fag
->relas
= (Elf_Internal_Rela
**)
12559 bfd_malloc (new_fag
->relas_capcity
* sizeof (void *));
12560 new_fag
->relas
[0] = rel
;
12561 iter
->next
= new_fag
;
12563 nds32_fag_verify (head
);
12567 nds32_fag_free_list (struct nds32_fag
*head
)
12569 struct nds32_fag
*iter
;
12574 struct nds32_fag
*tmp
= iter
;
12582 /* Find the best fp-base address.
12583 The relocation associated with that address is returned,
12584 so we can track the symbol instead of a fixed address.
12586 When relaxation, the address of an datum may change,
12587 because a text section is shrinked, so the data section
12588 moves forward. If the aligments of text and data section
12589 are different, their distance may change too.
12590 Therefore, tracking a fixed address is not appriate. */
12593 nds32_fag_find_base (struct nds32_fag
*head
, struct nds32_fag
**bestpp
)
12595 struct nds32_fag
*base
; /* First fag in the window. */
12596 struct nds32_fag
*last
; /* First fag outside the window. */
12597 int accu
= 0; /* Usage accumulation. */
12598 struct nds32_fag
*best
; /* Best fag. */
12599 int baccu
= 0; /* Best accumulation. */
12601 /* Use first fag for initial, and find the last fag in the window.
12603 In each iteration, we could simply subtract previous fag
12604 and accumulate following fags which are inside the window,
12605 untill we each the end. */
12607 if (head
->next
== NULL
)
12613 /* Initialize base. */
12617 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12619 accu
+= last
->count
;
12623 /* Record the best base in each iteration. */
12626 accu
-= base
->count
;
12628 /* Account fags in window. */
12629 for (/* Nothing. */;
12630 last
&& last
->addr
< base
->addr
+ FAG_WINDOW
;
12632 accu
+= last
->count
;
12634 /* A better fp-base? */
12647 /* Apply R_NDS32_INSN16_FP7U2_FLAG on gp-relative accesses,
12648 so we can convert it fo fp-relative access later.
12649 `best_fag' is the best fp-base. Only those inside the window
12650 of best_fag is applied the flag. */
12653 nds32_fag_mark_relax (struct bfd_link_info
*link_info
,
12654 bfd
*abfd
, struct nds32_fag
*best_fag
,
12655 Elf_Internal_Rela
*internal_relocs
,
12656 Elf_Internal_Rela
*irelend
)
12658 struct nds32_fag
*ifag
;
12659 bfd_vma best_fpbase
, gp
;
12662 output_bfd
= abfd
->sections
->output_section
->owner
;
12663 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
12664 best_fpbase
= best_fag
->addr
;
12666 if (best_fpbase
> gp
+ sdata_range
[1][1]
12667 || best_fpbase
< gp
- sdata_range
[1][0])
12670 /* Mark these inside the window R_NDS32_INSN16_FP7U2_FLAG flag,
12671 so we know they can be converted to lwi37.fp. */
12672 for (ifag
= best_fag
;
12673 ifag
&& ifag
->addr
< best_fpbase
+ FAG_WINDOW
; ifag
= ifag
->next
)
12677 for (i
= 0; i
< ifag
->count
; i
++)
12679 Elf_Internal_Rela
*insn16_rel
;
12680 Elf_Internal_Rela
*fag_rel
;
12682 fag_rel
= ifag
->relas
[i
];
12684 /* Only if this is within the WINDOWS, FP7U2_FLAG
12687 insn16_rel
= find_relocs_at_address
12688 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12690 if (insn16_rel
!= irelend
)
12691 insn16_rel
->r_addend
= R_NDS32_INSN16_FP7U2_FLAG
;
12697 /* Reset INSN16 to clean fp as gp. */
12700 nds32_fag_unmark_relax (struct nds32_fag
*fag
,
12701 Elf_Internal_Rela
*internal_relocs
,
12702 Elf_Internal_Rela
*irelend
)
12704 struct nds32_fag
*ifag
;
12706 Elf_Internal_Rela
*insn16_rel
;
12707 Elf_Internal_Rela
*fag_rel
;
12709 for (ifag
= fag
; ifag
; ifag
= ifag
->next
)
12711 for (i
= 0; i
< ifag
->count
; i
++)
12713 fag_rel
= ifag
->relas
[i
];
12715 /* Restore the INSN16 relocation. */
12716 insn16_rel
= find_relocs_at_address
12717 (fag_rel
, internal_relocs
, irelend
, R_NDS32_INSN16
);
12719 if (insn16_rel
!= irelend
)
12720 insn16_rel
->r_addend
&= ~R_NDS32_INSN16_FP7U2_FLAG
;
12725 /* This is the main function of fp-as-gp optimization.
12726 It should be called by relax_section. */
12729 nds32_relax_fp_as_gp (struct bfd_link_info
*link_info
,
12730 bfd
*abfd
, asection
*sec
,
12731 Elf_Internal_Rela
*internal_relocs
,
12732 Elf_Internal_Rela
*irelend
,
12733 Elf_Internal_Sym
*isymbuf
)
12735 Elf_Internal_Rela
*begin_rel
= NULL
;
12736 Elf_Internal_Rela
*irel
;
12737 struct nds32_fag fag_head
;
12738 Elf_Internal_Shdr
*symtab_hdr
;
12739 bfd_byte
*contents
;
12740 bfd_boolean ifc_inside
= FALSE
;
12742 /* FIXME: Can we bfd_elf_link_read_relocs for the relocs? */
12744 /* Per-function fp-base selection.
12745 1. Create a list for all the gp-relative access.
12746 2. Base on those gp-relative address,
12747 find a fp-base which can cover most access.
12748 3. Use the fp-base for fp-as-gp relaxation.
12750 NOTE: If fp-as-gp is not worth to do, (e.g., less than 3 times),
12752 1. delete the `la $fp, _FP_BASE_' instruction and
12753 2. not convert lwi.gp to lwi37.fp.
12755 To delete the _FP_BASE_ instruction, we simply apply
12756 R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG flag in the r_addend to disable it.
12758 To suppress the conversion, we simply NOT to apply
12759 R_NDS32_INSN16_FP7U2_FLAG flag. */
12761 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12763 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
12764 || !nds32_get_local_syms (abfd
, sec
, &isymbuf
))
12767 /* Check whether it is worth for fp-as-gp optimization,
12768 i.e., at least 3 gp-load.
12770 Set R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG if we should NOT
12771 apply this optimization. */
12773 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12775 /* We recognize R_NDS32_RELAX_REGION_BEGIN/_END for the region.
12776 One we enter the begin of the region, we track all the LW/ST
12777 instructions, so when we leave the region, we try to find
12778 the best fp-base address for those LW/ST instructions. */
12780 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12781 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12783 /* Begin of the region. */
12785 (*_bfd_error_handler
) (_("%B: Nested OMIT_FP in %A."), abfd
, sec
);
12788 nds32_fag_init (&fag_head
);
12789 ifc_inside
= FALSE
;
12791 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12792 && (irel
->r_addend
& R_NDS32_RELAX_REGION_OMIT_FP_FLAG
))
12795 struct nds32_fag
*best_fag
, *tmp_fag
;
12798 /* End of the region.
12799 Check whether it is worth to do fp-as-gp. */
12801 if (begin_rel
== NULL
)
12803 (*_bfd_error_handler
) (_("%B: Unmatched OMIT_FP in %A."), abfd
, sec
);
12807 accu
= nds32_fag_find_base (&fag_head
, &best_fag
);
12809 /* Clean FP7U2_FLAG because they may set ever. */
12810 tmp_fag
= fag_head
.next
;
12811 nds32_fag_unmark_relax (tmp_fag
, internal_relocs
, irelend
);
12813 /* Check if it is worth, and FP_BASE is near enough to SDA_BASE. */
12814 if (accu
< FAG_THRESHOLD
12815 || !nds32_fag_mark_relax (link_info
, abfd
, best_fag
,
12816 internal_relocs
, irelend
))
12818 /* Not worth to do fp-as-gp. */
12819 begin_rel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12820 begin_rel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12821 irel
->r_addend
|= R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
;
12822 irel
->r_addend
&= ~R_NDS32_RELAX_REGION_OMIT_FP_FLAG
;
12823 nds32_fag_free_list (&fag_head
);
12828 /* R_SYM of R_NDS32_RELAX_REGION_BEGIN is not used by assembler,
12829 so we use it to record the distance to the reloction of best
12831 dist
= best_fag
->relas
[0] - begin_rel
;
12832 BFD_ASSERT (dist
> 0 && dist
< 0xffffff);
12833 /* Use high 16 bits of addend to record the _FP_BASE_ matched
12834 relocation. And get the base value when relocating. */
12835 begin_rel
->r_addend
&= (0x1 << 16) - 1;
12836 begin_rel
->r_addend
|= dist
<< 16;
12838 nds32_fag_free_list (&fag_head
);
12842 if (begin_rel
== NULL
|| ifc_inside
)
12843 /* Skip if we are not in the region of fp-as-gp. */
12846 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S2_RELA
12847 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA17S2_RELA
)
12852 /* A gp-relative access is found. Insert it to the fag-list. */
12854 /* Rt is necessary an RT3, so it can be converted to lwi37.fp. */
12855 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12856 if (!N32_IS_RT3 (insn
))
12859 addr
= calculate_memory_address (abfd
, irel
, isymbuf
, symtab_hdr
);
12860 nds32_fag_insert (&fag_head
, addr
, irel
);
12862 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA_FP7U2_RELA
)
12866 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_17IFC_PCREL_RELA
12867 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
12869 /* Suppress fp as gp when encounter ifc. */
12877 /* Remove unused `la $fp, _FD_BASE_' instruction. */
12880 nds32_fag_remove_unused_fpbase (bfd
*abfd
, asection
*sec
,
12881 Elf_Internal_Rela
*internal_relocs
,
12882 Elf_Internal_Rela
*irelend
)
12884 Elf_Internal_Rela
*irel
;
12885 Elf_Internal_Shdr
*symtab_hdr
;
12886 bfd_byte
*contents
= NULL
;
12887 nds32_elf_blank_t
*relax_blank_list
= NULL
;
12888 bfd_boolean result
= TRUE
;
12889 bfd_boolean unused_region
= FALSE
;
12892 NOTE: Disable fp-as-gp if we encounter ifcall relocations.
12893 * R_NDS32_17IFC_PCREL_RELA
12894 * R_NDS32_10IFCU_PCREL_RELA
12899 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
12900 nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
);
12902 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
12904 /* To remove unused fp-base, we simply find the REGION_NOT_OMIT_FP
12905 we marked to in previous pass.
12906 DO NOT scan relocations again, since we've alreadly decided it
12907 and set the flag. */
12908 const char *syname
;
12912 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
12913 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12914 unused_region
= TRUE
;
12915 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
12916 && (irel
->r_addend
& R_NDS32_RELAX_REGION_NOT_OMIT_FP_FLAG
))
12917 unused_region
= FALSE
;
12919 /* We're not in the region. */
12920 if (!unused_region
)
12923 /* _FP_BASE_ must be a GLOBAL symbol. */
12924 syndx
= ELF32_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
12925 if (ELF32_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
12928 /* The symbol name must be _FP_BASE_. */
12929 syname
= elf_sym_hashes (abfd
)[syndx
]->root
.root
.string
;
12930 if (strcmp (syname
, FP_BASE_NAME
) != 0)
12933 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA19S0_RELA
)
12935 /* addi.gp $fp, -256 */
12936 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12937 if (insn
!= INSN_ADDIGP_TO_FP
)
12940 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_SDA15S0_RELA
)
12942 /* addi $fp, $gp, -256 */
12943 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12944 if (insn
!= INSN_ADDI_GP_TO_FP
)
12947 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_20_RELA
)
12949 /* movi $fp, FP_BASE */
12950 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
12951 if (insn
!= INSN_MOVI_TO_FP
)
12957 /* We got here because a FP_BASE instruction is found. */
12958 if (!insert_nds32_elf_blank_recalc_total
12959 (&relax_blank_list
, irel
->r_offset
, 4))
12964 if (relax_blank_list
)
12966 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
12967 relax_blank_list
= NULL
;
12976 /* This is a version of bfd_generic_get_relocated_section_contents.
12977 We need this variety because relaxation will modify the dwarf
12978 infomation. When there is undefined symbol reference error mesage,
12979 linker need to dump line number where the symbol be used. However
12980 the address is be relaxed, it can not get the original dwarf contents.
12981 The variety only modify function call for reading in the section. */
12984 nds32_elf_get_relocated_section_contents (bfd
*abfd
,
12985 struct bfd_link_info
*link_info
,
12986 struct bfd_link_order
*link_order
,
12988 bfd_boolean relocatable
,
12991 bfd
*input_bfd
= link_order
->u
.indirect
.section
->owner
;
12992 asection
*input_section
= link_order
->u
.indirect
.section
;
12994 arelent
**reloc_vector
;
12997 reloc_size
= bfd_get_reloc_upper_bound (input_bfd
, input_section
);
12998 if (reloc_size
< 0)
13001 /* Read in the section. */
13002 if (!nds32_get_section_contents (input_bfd
, input_section
, &data
, FALSE
))
13005 if (reloc_size
== 0)
13008 reloc_vector
= (arelent
**) bfd_malloc (reloc_size
);
13009 if (reloc_vector
== NULL
)
13012 reloc_count
= bfd_canonicalize_reloc (input_bfd
, input_section
,
13013 reloc_vector
, symbols
);
13014 if (reloc_count
< 0)
13017 if (reloc_count
> 0)
13020 for (parent
= reloc_vector
; *parent
!= NULL
; parent
++)
13022 char *error_message
= NULL
;
13024 bfd_reloc_status_type r
;
13026 symbol
= *(*parent
)->sym_ptr_ptr
;
13027 if (symbol
->section
&& discarded_section (symbol
->section
))
13030 static reloc_howto_type none_howto
13031 = HOWTO (0, 0, 0, 0, FALSE
, 0, complain_overflow_dont
, NULL
,
13032 "unused", FALSE
, 0, 0, FALSE
);
13034 p
= data
+ (*parent
)->address
* bfd_octets_per_byte (input_bfd
);
13035 _bfd_clear_contents ((*parent
)->howto
, input_bfd
, input_section
,
13037 (*parent
)->sym_ptr_ptr
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
13038 (*parent
)->addend
= 0;
13039 (*parent
)->howto
= &none_howto
;
13043 r
= bfd_perform_relocation (input_bfd
, *parent
, data
,
13045 relocatable
? abfd
: NULL
,
13050 asection
*os
= input_section
->output_section
;
13052 /* A partial link, so keep the relocs. */
13053 os
->orelocation
[os
->reloc_count
] = *parent
;
13057 if (r
!= bfd_reloc_ok
)
13061 case bfd_reloc_undefined
:
13062 if (!((*link_info
->callbacks
->undefined_symbol
)
13063 (link_info
, bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13064 input_bfd
, input_section
, (*parent
)->address
, TRUE
)))
13067 case bfd_reloc_dangerous
:
13068 BFD_ASSERT (error_message
!= NULL
);
13069 if (!((*link_info
->callbacks
->reloc_dangerous
)
13070 (link_info
, error_message
, input_bfd
, input_section
,
13071 (*parent
)->address
)))
13074 case bfd_reloc_overflow
:
13075 if (!((*link_info
->callbacks
->reloc_overflow
)
13077 bfd_asymbol_name (*(*parent
)->sym_ptr_ptr
),
13078 (*parent
)->howto
->name
, (*parent
)->addend
,
13079 input_bfd
, input_section
, (*parent
)->address
)))
13082 case bfd_reloc_outofrange
:
13084 This error can result when processing some partially
13085 complete binaries. Do not abort, but issue an error
13086 message instead. */
13087 link_info
->callbacks
->einfo
13088 (_("%X%P: %B(%A): relocation \"%R\" goes out of range\n"),
13089 abfd
, input_section
, * parent
);
13100 free (reloc_vector
);
13104 free (reloc_vector
);
13108 /* Link-time IFC relaxation.
13109 In this optimization, we chains jump instructions
13110 of the same destination with ifcall. */
13113 /* List to save jal and j relocation. */
13114 struct elf_nds32_ifc_symbol_entry
13117 struct elf_link_hash_entry
*h
;
13118 struct elf_nds32_ifc_irel_list
*irel_head
;
13119 unsigned long insn
;
13121 int enable
; /* Apply ifc. */
13122 int ex9_enable
; /* Apply ifc after ex9. */
13123 struct elf_nds32_ifc_symbol_entry
*next
;
13126 struct elf_nds32_ifc_irel_list
13128 Elf_Internal_Rela
*irel
;
13131 /* If this is set, then it is the last instruction for
13132 ifc-chain, so it must be keep for the actual branching. */
13134 struct elf_nds32_ifc_irel_list
*next
;
13137 static struct elf_nds32_ifc_symbol_entry
*ifc_symbol_head
= NULL
;
13139 /* Insert symbol of jal and j for ifc. */
13142 nds32_elf_ifc_insert_symbol (asection
*sec
,
13143 struct elf_link_hash_entry
*h
,
13144 Elf_Internal_Rela
*irel
,
13145 unsigned long insn
)
13147 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13149 /* Check there is target of existing entry the same as the new one. */
13150 while (ptr
!= NULL
)
13152 if (((h
== NULL
&& ptr
->sec
== sec
13153 && ELF32_R_SYM (ptr
->irel_head
->irel
->r_info
) == ELF32_R_SYM (irel
->r_info
)
13154 && ptr
->irel_head
->irel
->r_addend
== irel
->r_addend
)
13157 && ptr
->insn
== insn
)
13159 /* The same target exist, so insert into list. */
13160 struct elf_nds32_ifc_irel_list
*irel_list
= ptr
->irel_head
;
13162 while (irel_list
->next
!= NULL
)
13163 irel_list
= irel_list
->next
;
13164 irel_list
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13165 irel_list
= irel_list
->next
;
13166 irel_list
->irel
= irel
;
13167 irel_list
->keep
= 1;
13170 irel_list
->sec
= NULL
;
13172 irel_list
->sec
= sec
;
13173 irel_list
->next
= NULL
;
13176 if (ptr
->next
== NULL
)
13181 /* There is no same target entry, so build a new one. */
13182 if (ifc_symbol_head
== NULL
)
13184 ifc_symbol_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13185 ptr
= ifc_symbol_head
;
13189 ptr
->next
= bfd_malloc (sizeof (struct elf_nds32_ifc_symbol_entry
));
13194 ptr
->irel_head
= bfd_malloc (sizeof (struct elf_nds32_ifc_irel_list
));
13195 ptr
->irel_head
->irel
= irel
;
13197 ptr
->irel_head
->keep
= 1;
13201 /* Local symbols. */
13203 ptr
->irel_head
->sec
= NULL
;
13207 /* Global symbol. */
13209 ptr
->irel_head
->sec
= sec
;
13212 ptr
->irel_head
->next
= NULL
;
13215 ptr
->ex9_enable
= 0;
13219 /* Gather all jal and j instructions. */
13222 nds32_elf_ifc_calc (struct bfd_link_info
*info
,
13223 bfd
*abfd
, asection
*sec
)
13225 Elf_Internal_Rela
*internal_relocs
;
13226 Elf_Internal_Rela
*irelend
;
13227 Elf_Internal_Rela
*irel
;
13228 Elf_Internal_Shdr
*symtab_hdr
;
13229 bfd_byte
*contents
= NULL
;
13230 uint32_t insn
, insn_with_reg
;
13231 unsigned long r_symndx
;
13232 struct elf_link_hash_entry
*h
;
13233 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
13234 struct elf_nds32_link_hash_table
*table
;
13235 bfd_boolean ifc_loop_aware
;
13237 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
13238 TRUE
/* keep_memory */);
13239 irelend
= internal_relocs
+ sec
->reloc_count
;
13240 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
13242 /* Check if the object enable ifc. */
13243 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
13244 R_NDS32_RELAX_ENTRY
);
13248 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
13249 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
13250 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_IFC_FLAG
)))
13253 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
13256 table
= nds32_elf_hash_table (info
);
13257 ifc_loop_aware
= table
->ifc_loop_aware
;
13258 while (irel
!= NULL
&& irel
< irelend
)
13260 /* Traverse all relocation and gather all of them to build the list. */
13262 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
13264 if (ifc_loop_aware
== 1
13265 && (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0)
13267 /* Check the region if loop or not. If it is true and
13268 ifc-loop-aware is true, ignore the region till region end. */
13269 while (irel
!= NULL
13271 && (ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_REGION_END
13272 || (irel
->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
) != 0))
13277 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
13279 insn
= bfd_getb32 (contents
+ irel
->r_offset
);
13280 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
13281 r_symndx
= ELF32_R_SYM (irel
->r_info
);
13282 if (r_symndx
< symtab_hdr
->sh_info
)
13284 /* Local symbol. */
13285 nds32_elf_ifc_insert_symbol (sec
, NULL
, irel
, insn_with_reg
);
13289 /* External symbol. */
13290 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
13291 nds32_elf_ifc_insert_symbol (sec
, h
, irel
, insn_with_reg
);
13299 /* Determine whether j and jal should be substituted. */
13302 nds32_elf_ifc_filter (struct bfd_link_info
*info
)
13304 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13305 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13306 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13307 struct elf_nds32_link_hash_table
*table
;
13308 int target_optimize
;
13311 table
= nds32_elf_hash_table (info
);
13312 target_optimize
= table
->target_optimize
;
13315 irel_ptr
= ptr
->irel_head
;
13316 if (ptr
->h
== NULL
)
13318 /* Local symbol. */
13319 irel_keeper
= irel_ptr
;
13320 while (irel_ptr
&& irel_ptr
->next
)
13322 /* Check there is jump target can be used. */
13323 if ((irel_ptr
->next
->irel
->r_offset
13324 - irel_keeper
->irel
->r_offset
) > 1022)
13325 irel_keeper
= irel_ptr
->next
;
13329 irel_ptr
->keep
= 0;
13331 irel_ptr
= irel_ptr
->next
;
13336 /* Global symbol. */
13337 /* We have to get the absolute address and decide
13338 whether to keep it or not. */
13341 address
= (irel_ptr
->irel
->r_offset
13342 + irel_ptr
->sec
->output_section
->vma
13343 + irel_ptr
->sec
->output_offset
);
13344 irel_ptr
->addr
= address
;
13345 irel_ptr
= irel_ptr
->next
;
13348 irel_ptr
= ptr
->irel_head
;
13351 /* Sort by address. */
13352 struct elf_nds32_ifc_irel_list
*irel_dest
= irel_ptr
;
13353 struct elf_nds32_ifc_irel_list
*irel_temp
= irel_ptr
;
13354 struct elf_nds32_ifc_irel_list
*irel_ptr_prev
= NULL
;
13355 struct elf_nds32_ifc_irel_list
*irel_dest_prev
= NULL
;
13357 /* Get the smallest one. */
13358 while (irel_temp
->next
)
13360 if (irel_temp
->next
->addr
< irel_dest
->addr
)
13362 irel_dest_prev
= irel_temp
;
13363 irel_dest
= irel_temp
->next
;
13365 irel_temp
= irel_temp
->next
;
13368 if (irel_dest
!= irel_ptr
)
13371 irel_ptr_prev
->next
= irel_dest
;
13372 if (irel_dest_prev
)
13373 irel_dest_prev
->next
= irel_ptr
;
13374 irel_temp
= irel_ptr
->next
;
13375 irel_ptr
->next
= irel_dest
->next
;
13376 irel_dest
->next
= irel_temp
;
13378 irel_ptr_prev
= irel_ptr
;
13379 irel_ptr
= irel_ptr
->next
;
13382 irel_ptr
= ptr
->irel_head
;
13383 irel_keeper
= irel_ptr
;
13384 while (irel_ptr
&& irel_ptr
->next
)
13386 if ((irel_ptr
->next
->addr
- irel_keeper
->addr
) > 1022)
13387 irel_keeper
= irel_ptr
->next
;
13391 irel_ptr
->keep
= 0;
13393 irel_ptr
= irel_ptr
->next
;
13397 /* Ex9 enable. Reserve it for ex9. */
13398 if ((target_optimize
& NDS32_RELAX_EX9_ON
)
13399 && ptr
->irel_head
!= irel_keeper
)
13405 /* Determine whether j and jal should be substituted after ex9 done. */
13408 nds32_elf_ifc_filter_after_ex9 (void)
13410 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13411 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13415 if (ptr
->enable
== 0)
13417 /* Check whether ifc is applied or not. */
13418 irel_ptr
= ptr
->irel_head
;
13419 ptr
->ex9_enable
= 1;
13422 if (ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_TRAN
)
13425 ptr
->ex9_enable
= 0;
13428 irel_ptr
= irel_ptr
->next
;
13435 /* Wrapper to do ifc relaxation. */
13438 nds32_elf_ifc_finish (struct bfd_link_info
*info
)
13441 struct elf_nds32_link_hash_table
*table
;
13443 table
= nds32_elf_hash_table (info
);
13444 relax_status
= table
->relax_status
;
13446 if (!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
))
13447 nds32_elf_ifc_filter (info
);
13449 nds32_elf_ifc_filter_after_ex9 ();
13451 if (!nds32_elf_ifc_replace (info
))
13455 table
->relax_status
|= NDS32_RELAX_JUMP_IFC_DONE
;
13459 /* Traverse the result of ifc filter and replace it with ifcall9. */
13462 nds32_elf_ifc_replace (struct bfd_link_info
*info
)
13464 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13465 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13466 nds32_elf_blank_t
*relax_blank_list
= NULL
;
13467 bfd_byte
*contents
= NULL
;
13468 Elf_Internal_Rela
*internal_relocs
;
13469 Elf_Internal_Rela
*irel
;
13470 Elf_Internal_Rela
*irelend
;
13471 unsigned short insn16
= INSN_IFCALL9
;
13472 struct elf_nds32_link_hash_table
*table
;
13475 table
= nds32_elf_hash_table (info
);
13476 relax_status
= table
->relax_status
;
13480 /* Traverse the ifc gather list, and replace the
13481 filter entries by ifcall9. */
13482 if ((!(relax_status
& NDS32_RELAX_JUMP_IFC_DONE
) && ptr
->enable
== 1)
13483 || ((relax_status
& NDS32_RELAX_JUMP_IFC_DONE
)
13484 && ptr
->ex9_enable
== 1))
13486 irel_ptr
= ptr
->irel_head
;
13487 if (ptr
->h
== NULL
)
13489 /* Local symbol. */
13490 internal_relocs
= _bfd_elf_link_read_relocs
13491 (ptr
->sec
->owner
, ptr
->sec
, NULL
, NULL
, TRUE
/* keep_memory */);
13492 irelend
= internal_relocs
+ ptr
->sec
->reloc_count
;
13494 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13500 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13502 /* The one can be replaced. We have to check whether
13503 there is any alignment point in the region. */
13504 irel
= irel_ptr
->irel
;
13505 while (((irel_ptr
->next
->keep
== 0
13506 && irel
< irel_ptr
->next
->irel
)
13507 || (irel_ptr
->next
->keep
== 1 && irel
< irelend
))
13508 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13509 && (irel
->r_addend
& 0x1f) == 2))
13511 if (irel
>= irelend
13512 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13513 && (irel
->r_addend
& 0x1f) == 2
13514 && ((irel
->r_offset
- get_nds32_elf_blank_total
13515 (&relax_blank_list
, irel
->r_offset
, 1))
13518 /* Replace by ifcall9. */
13519 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13520 if (!insert_nds32_elf_blank_recalc_total
13521 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13523 irel_ptr
->irel
->r_info
=
13524 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13525 R_NDS32_10IFCU_PCREL_RELA
);
13528 irel_ptr
= irel_ptr
->next
;
13531 /* Delete the redundant code. */
13532 if (relax_blank_list
)
13534 nds32_elf_relax_delete_blanks (ptr
->sec
->owner
, ptr
->sec
,
13536 relax_blank_list
= NULL
;
13541 /* Global symbol. */
13544 if (irel_ptr
->keep
== 0 && irel_ptr
->next
)
13546 /* The one can be replaced, and we have to check
13547 whether there is any alignment point in the region. */
13548 internal_relocs
= _bfd_elf_link_read_relocs
13549 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, NULL
, NULL
,
13550 TRUE
/* keep_memory */);
13551 irelend
= internal_relocs
+ irel_ptr
->sec
->reloc_count
;
13552 if (!nds32_get_section_contents (irel_ptr
->sec
->owner
,
13553 irel_ptr
->sec
, &contents
,
13557 irel
= irel_ptr
->irel
;
13558 while (((irel_ptr
->sec
== irel_ptr
->next
->sec
13559 && irel_ptr
->next
->keep
== 0
13560 && irel
< irel_ptr
->next
->irel
)
13561 || ((irel_ptr
->sec
!= irel_ptr
->next
->sec
13562 || irel_ptr
->next
->keep
== 1)
13563 && irel
< irelend
))
13564 && !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13565 && (irel
->r_addend
& 0x1f) == 2))
13567 if (irel
>= irelend
13568 || !(ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LABEL
13569 && (irel
->r_addend
& 0x1f) == 2
13570 && ((irel
->r_offset
13571 - get_nds32_elf_blank_total (&relax_blank_list
,
13572 irel
->r_offset
, 1)) & 0x02) == 0))
13574 /* Replace by ifcall9. */
13575 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13576 if (!insert_nds32_elf_blank_recalc_total
13577 (&relax_blank_list
, irel_ptr
->irel
->r_offset
+ 2, 2))
13580 /* Delete the redundant code, and clear the relocation. */
13581 nds32_elf_relax_delete_blanks (irel_ptr
->sec
->owner
,
13584 irel_ptr
->irel
->r_info
=
13585 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13586 R_NDS32_10IFCU_PCREL_RELA
);
13587 relax_blank_list
= NULL
;
13591 irel_ptr
= irel_ptr
->next
;
13601 /* Relocate ifcall. */
13604 nds32_elf_ifc_reloc (void)
13606 struct elf_nds32_ifc_symbol_entry
*ptr
= ifc_symbol_head
;
13607 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
13608 struct elf_nds32_ifc_irel_list
*irel_keeper
= NULL
;
13609 bfd_vma relocation
, address
;
13610 unsigned short insn16
;
13611 bfd_byte
*contents
= NULL
;
13612 static bfd_boolean done
= FALSE
;
13621 /* Check the entry is enable ifcall. */
13622 if (ptr
->enable
== 1 || ptr
->ex9_enable
== 1)
13624 /* Get the reserve jump. */
13625 irel_ptr
= ptr
->irel_head
;
13628 if (irel_ptr
->keep
== 1)
13630 irel_keeper
= irel_ptr
;
13633 irel_ptr
= irel_ptr
->next
;
13636 irel_ptr
= ptr
->irel_head
;
13637 if (ptr
->h
== NULL
)
13639 /* Local symbol. */
13640 if (!nds32_get_section_contents (ptr
->sec
->owner
, ptr
->sec
,
13646 if (irel_ptr
->keep
== 0
13647 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13649 relocation
= irel_keeper
->irel
->r_offset
;
13650 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13651 while (irel_keeper
&& relocation
> 1022)
13653 irel_keeper
= irel_keeper
->next
;
13654 if (irel_keeper
&& irel_keeper
->keep
== 1)
13656 relocation
= irel_keeper
->irel
->r_offset
;
13657 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13660 if (relocation
> 1022)
13662 /* Double check. */
13663 irel_keeper
= ptr
->irel_head
;
13664 while (irel_keeper
)
13666 if (irel_keeper
->keep
== 1)
13668 relocation
= irel_keeper
->irel
->r_offset
;
13669 relocation
= relocation
- irel_ptr
->irel
->r_offset
;
13671 if (relocation
<= 1022)
13673 irel_keeper
= irel_keeper
->next
;
13678 irel_ptr
->irel
->r_info
=
13679 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13681 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13682 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13684 irel_ptr
= irel_ptr
->next
;
13689 /* Global symbol. */
13692 if (irel_ptr
->keep
== 0
13693 && ELF32_R_TYPE (irel_ptr
->irel
->r_info
) == R_NDS32_10IFCU_PCREL_RELA
)
13695 /* Get the distance between ifcall and jump. */
13696 relocation
= (irel_keeper
->irel
->r_offset
13697 + irel_keeper
->sec
->output_section
->vma
13698 + irel_keeper
->sec
->output_offset
);
13699 address
= (irel_ptr
->irel
->r_offset
13700 + irel_ptr
->sec
->output_section
->vma
13701 + irel_ptr
->sec
->output_offset
);
13702 relocation
= relocation
- address
;
13704 /* The distance is over ragne, find callee again. */
13705 while (irel_keeper
&& relocation
> 1022)
13707 irel_keeper
= irel_keeper
->next
;
13708 if (irel_keeper
&& irel_keeper
->keep
==1)
13710 relocation
= (irel_keeper
->irel
->r_offset
13711 + irel_keeper
->sec
->output_section
->vma
13712 + irel_keeper
->sec
->output_offset
);
13713 relocation
= relocation
- address
;
13717 if (relocation
> 1022)
13719 /* Double check. */
13720 irel_keeper
= ptr
->irel_head
;
13721 while (irel_keeper
)
13723 if (irel_keeper
->keep
== 1)
13726 relocation
= (irel_keeper
->irel
->r_offset
13727 + irel_keeper
->sec
->output_section
->vma
13728 + irel_keeper
->sec
->output_offset
);
13729 relocation
= relocation
- address
;
13731 if (relocation
<= 1022)
13733 irel_keeper
= irel_keeper
->next
;
13738 if (!nds32_get_section_contents
13739 (irel_ptr
->sec
->owner
, irel_ptr
->sec
, &contents
, TRUE
))
13741 insn16
= INSN_IFCALL9
| (relocation
>> 1);
13742 bfd_putb16 (insn16
, contents
+ irel_ptr
->irel
->r_offset
);
13743 irel_ptr
->irel
->r_info
=
13744 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
),
13747 irel_ptr
=irel_ptr
->next
;
13757 /* End of IFC relaxation. */
13759 /* EX9 Instruction Table Relaxation. */
13761 /* Global hash list. */
13762 struct elf_link_hash_entry_list
13764 struct elf_link_hash_entry
*h
;
13765 struct elf_link_hash_entry_list
*next
;
13768 /* Save different destination but same insn. */
13769 struct elf_link_hash_entry_mul_list
13771 /* Global symbol times. */
13773 /* Save relocation for each global symbol but useful?? */
13774 Elf_Internal_Rela
*irel
;
13775 /* For sethi, two sethi may have the same high-part but different low-parts. */
13776 Elf_Internal_Rela rel_backup
;
13777 struct elf_link_hash_entry_list
*h_list
;
13778 struct elf_link_hash_entry_mul_list
*next
;
13781 /* Instruction hash table. */
13782 struct elf_nds32_code_hash_entry
13784 struct bfd_hash_entry root
;
13786 /* For insn that can use relocation or constant ex: sethi. */
13789 struct elf_link_hash_entry_mul_list
*m_list
;
13790 /* Using r_addend. */
13791 Elf_Internal_Rela
*irel
;
13792 /* Using r_info. */
13793 Elf_Internal_Rela rel_backup
;
13796 /* Instruction count list. */
13797 struct elf_nds32_insn_times_entry
13799 const char *string
;
13803 struct elf_link_hash_entry_mul_list
*m_list
;
13804 Elf_Internal_Rela
*irel
;
13805 Elf_Internal_Rela rel_backup
;
13806 struct elf_nds32_insn_times_entry
*next
;
13809 /* J and JAL symbol list. */
13810 struct elf_nds32_symbol_entry
13813 unsigned long insn
;
13814 struct elf_nds32_symbol_entry
*next
;
13817 /* Relocation list. */
13818 struct elf_nds32_irel_entry
13820 Elf_Internal_Rela
*irel
;
13821 struct elf_nds32_irel_entry
*next
;
13824 /* ex9.it insn need to be fixed. */
13825 struct elf_nds32_ex9_refix
13827 Elf_Internal_Rela
*irel
;
13829 struct elf_link_hash_entry
*h
;
13831 struct elf_nds32_ex9_refix
*next
;
13834 static struct bfd_hash_table ex9_code_table
;
13835 static struct elf_nds32_insn_times_entry
*ex9_insn_head
= NULL
;
13836 static struct elf_nds32_ex9_refix
*ex9_refix_head
= NULL
;
13838 /* EX9 hash function. */
13840 static struct bfd_hash_entry
*
13841 nds32_elf_code_hash_newfunc (struct bfd_hash_entry
*entry
,
13842 struct bfd_hash_table
*table
,
13843 const char *string
)
13845 struct elf_nds32_code_hash_entry
*ret
;
13847 /* Allocate the structure if it has not already been allocated by a
13851 entry
= (struct bfd_hash_entry
*)
13852 bfd_hash_allocate (table
, sizeof (*ret
));
13857 /* Call the allocation method of the superclass. */
13858 entry
= bfd_hash_newfunc (entry
, table
, string
);
13862 ret
= (struct elf_nds32_code_hash_entry
*) entry
;
13864 ret
->const_insn
= 0;
13865 ret
->m_list
= NULL
;
13871 /* Insert ex9 entry
13872 this insert must be stable sorted by times. */
13875 nds32_elf_ex9_insert_entry (struct elf_nds32_insn_times_entry
*ptr
)
13877 struct elf_nds32_insn_times_entry
*temp
;
13878 struct elf_nds32_insn_times_entry
*temp2
;
13880 if (ex9_insn_head
== NULL
)
13882 ex9_insn_head
= ptr
;
13887 temp
= ex9_insn_head
;
13888 temp2
= ex9_insn_head
;
13889 while (temp
->next
&&
13890 (temp
->next
->times
>= ptr
->times
13891 || temp
->times
== -1))
13893 if (temp
->times
== -1)
13897 if (ptr
->times
> temp
->times
&& temp
->times
!= -1)
13900 if (temp2
->times
== -1)
13903 ex9_insn_head
= ptr
;
13905 else if (temp
->next
== NULL
)
13912 ptr
->next
= temp
->next
;
13918 /* Examine each insn times in hash table.
13919 Handle multi-link hash entry.
13921 TODO: This function doesn't assign so much info since it is fake. */
13924 nds32_elf_examine_insn_times (struct elf_nds32_code_hash_entry
*h
)
13926 struct elf_nds32_insn_times_entry
*ptr
;
13929 if (h
->m_list
== NULL
)
13931 /* Local symbol insn or insn without relocation. */
13935 ptr
= (struct elf_nds32_insn_times_entry
*)
13936 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13937 ptr
->times
= h
->times
;
13938 ptr
->string
= h
->root
.string
;
13939 ptr
->m_list
= NULL
;
13941 ptr
->irel
= h
->irel
;
13942 ptr
->rel_backup
= h
->rel_backup
;
13943 nds32_elf_ex9_insert_entry (ptr
);
13947 /* Global symbol insn. */
13948 /* Only sethi insn has multiple m_list. */
13949 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
13954 times
+= m_list
->times
;
13955 m_list
= m_list
->next
;
13959 m_list
= h
->m_list
;
13960 ptr
= (struct elf_nds32_insn_times_entry
*)
13961 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13962 ptr
->times
= times
; /* Use the total times. */
13963 ptr
->string
= h
->root
.string
;
13964 ptr
->m_list
= m_list
;
13966 ptr
->irel
= m_list
->irel
;
13967 ptr
->rel_backup
= m_list
->rel_backup
;
13968 nds32_elf_ex9_insert_entry (ptr
);
13970 if (h
->const_insn
== 1)
13972 /* sethi with constant value. */
13976 ptr
= (struct elf_nds32_insn_times_entry
*)
13977 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
13978 ptr
->times
= h
->times
;
13979 ptr
->string
= h
->root
.string
;
13980 ptr
->m_list
= NULL
;
13983 ptr
->rel_backup
= h
->rel_backup
;
13984 nds32_elf_ex9_insert_entry (ptr
);
13990 /* Count each insn times in hash table.
13991 Handle multi-link hash entry. */
13994 nds32_elf_count_insn_times (struct elf_nds32_code_hash_entry
*h
)
13996 int reservation
, times
;
13997 unsigned long relocation
, min_relocation
;
13998 struct elf_nds32_insn_times_entry
*ptr
;
14000 if (h
->m_list
== NULL
)
14002 /* Local symbol insn or insn without relocation. */
14005 ptr
= (struct elf_nds32_insn_times_entry
*)
14006 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14007 ptr
->times
= h
->times
;
14008 ptr
->string
= h
->root
.string
;
14009 ptr
->m_list
= NULL
;
14011 ptr
->irel
= h
->irel
;
14012 ptr
->rel_backup
= h
->rel_backup
;
14013 nds32_elf_ex9_insert_entry (ptr
);
14017 /* Global symbol insn. */
14018 /* Only sethi insn has multiple m_list. */
14019 struct elf_link_hash_entry_mul_list
*m_list
= h
->m_list
;
14021 if (ELF32_R_TYPE (m_list
->rel_backup
.r_info
) == R_NDS32_HI20_RELA
14022 && m_list
->next
!= NULL
)
14024 /* Sethi insn has different symbol or addend but has same hi20. */
14028 min_relocation
= 0xffffffff;
14031 /* Get the minimum sethi address
14032 and calculate how many entry the sethi-list have to use. */
14033 if ((m_list
->h_list
->h
->root
.type
== bfd_link_hash_defined
14034 || m_list
->h_list
->h
->root
.type
== bfd_link_hash_defweak
)
14035 && (m_list
->h_list
->h
->root
.u
.def
.section
!= NULL
14036 && m_list
->h_list
->h
->root
.u
.def
.section
->output_section
!= NULL
))
14038 relocation
= (m_list
->h_list
->h
->root
.u
.def
.value
+
14039 m_list
->h_list
->h
->root
.u
.def
.section
->output_section
->vma
+
14040 m_list
->h_list
->h
->root
.u
.def
.section
->output_offset
);
14041 relocation
+= m_list
->irel
->r_addend
;
14045 if (relocation
< min_relocation
)
14046 min_relocation
= relocation
;
14047 times
+= m_list
->times
;
14048 m_list
= m_list
->next
;
14050 if (min_relocation
< ex9_relax_size
)
14051 reservation
= (min_relocation
>> 12) + 1;
14053 reservation
= (min_relocation
>> 12)
14054 - ((min_relocation
- ex9_relax_size
) >> 12) + 1;
14055 if (reservation
< (times
/ 3))
14057 /* Efficient enough to use ex9. */
14060 for (i
= reservation
; i
> 0; i
--)
14062 /* Allocate number of reservation ex9 entry. */
14063 ptr
= (struct elf_nds32_insn_times_entry
*)
14064 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14065 ptr
->times
= h
->m_list
->times
/ reservation
;
14066 ptr
->string
= h
->root
.string
;
14067 ptr
->m_list
= h
->m_list
;
14069 ptr
->irel
= h
->m_list
->irel
;
14070 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14071 nds32_elf_ex9_insert_entry (ptr
);
14077 /* Normal global symbol that means no different address symbol
14078 using same ex9 entry. */
14079 if (m_list
->times
>= 3)
14081 ptr
= (struct elf_nds32_insn_times_entry
*)
14082 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14083 ptr
->times
= m_list
->times
;
14084 ptr
->string
= h
->root
.string
;
14085 ptr
->m_list
= h
->m_list
;
14087 ptr
->irel
= h
->m_list
->irel
;
14088 ptr
->rel_backup
= h
->m_list
->rel_backup
;
14089 nds32_elf_ex9_insert_entry (ptr
);
14093 if (h
->const_insn
== 1)
14095 /* sethi with constant value. */
14099 ptr
= (struct elf_nds32_insn_times_entry
*)
14100 bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
14101 ptr
->times
= h
->times
;
14102 ptr
->string
= h
->root
.string
;
14103 ptr
->m_list
= NULL
;
14106 ptr
->rel_backup
= h
->rel_backup
;
14107 nds32_elf_ex9_insert_entry (ptr
);
14114 /* Hash table traverse function. */
14117 nds32_elf_code_hash_traverse (int (*func
) (struct elf_nds32_code_hash_entry
*))
14121 ex9_code_table
.frozen
= 1;
14122 for (i
= 0; i
< ex9_code_table
.size
; i
++)
14124 struct bfd_hash_entry
*p
;
14126 for (p
= ex9_code_table
.table
[i
]; p
!= NULL
; p
= p
->next
)
14127 if (!func ((struct elf_nds32_code_hash_entry
*) p
))
14131 ex9_code_table
.frozen
= 0;
14135 /* Give order number to insn list. */
14138 nds32_elf_order_insn_times (struct bfd_link_info
*info
)
14140 struct elf_nds32_insn_times_entry
*ex9_insn
;
14141 struct elf_nds32_insn_times_entry
*temp
= NULL
;
14142 struct elf_nds32_link_hash_table
*table
;
14146 if (ex9_insn_head
== NULL
)
14149 /* The max number of entries is 512. */
14150 ex9_insn
= ex9_insn_head
;
14151 table
= nds32_elf_hash_table (info
);
14152 ex9_limit
= table
->ex9_limit
;
14154 ex9_insn
= ex9_insn_head
;
14156 while (ex9_insn
!= NULL
&& number
< ex9_limit
)
14158 ex9_insn
->order
= number
;
14161 ex9_insn
= ex9_insn
->next
;
14164 if (ex9_insn
&& temp
)
14167 while (ex9_insn
!= NULL
)
14169 /* Free useless entry. */
14171 ex9_insn
= ex9_insn
->next
;
14176 /* Build .ex9.itable section. */
14179 nds32_elf_ex9_build_itable (struct bfd_link_info
*link_info
)
14181 asection
*table_sec
;
14182 struct elf_nds32_insn_times_entry
*ptr
;
14185 bfd_byte
*contents
= NULL
;
14187 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
14188 it_abfd
= it_abfd
->link
.next
)
14190 /* Find the section .ex9.itable, and put all entries into it. */
14191 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
14192 if (table_sec
!= NULL
)
14194 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
14197 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14200 table_sec
->size
= number
* 4;
14205 elf_elfheader (link_info
->output_bfd
)->e_flags
|= E_NDS32_HAS_EX9_INST
;
14207 for (ptr
= ex9_insn_head
; ptr
!=NULL
; ptr
= ptr
->next
)
14211 val
= strtol (ptr
->string
, NULL
, 16);
14212 bfd_putb32 ((bfd_vma
) val
, (char *) contents
+ (number
* 4));
14220 /* Get insn with regs according to relocation type. */
14223 nds32_elf_get_insn_with_reg (Elf_Internal_Rela
*irel
,
14224 uint32_t insn
, uint32_t *insn_with_reg
)
14226 reloc_howto_type
*howto
= NULL
;
14229 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14230 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14231 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14233 *insn_with_reg
= insn
;
14237 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14238 *insn_with_reg
= insn
& (0xffffffff ^ howto
->dst_mask
);
14241 /* Mask number of address bits according to relocation. */
14243 static unsigned long
14244 nds32_elf_irel_mask (Elf_Internal_Rela
*irel
)
14246 reloc_howto_type
*howto
= NULL
;
14249 || (ELF32_R_TYPE (irel
->r_info
) >= (int) ARRAY_SIZE (nds32_elf_howto_table
)
14250 && (ELF32_R_TYPE (irel
->r_info
) - R_NDS32_RELAX_ENTRY
)
14251 >= (int) ARRAY_SIZE (nds32_elf_relax_howto_table
)))
14254 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
14255 return howto
->dst_mask
;
14259 nds32_elf_insert_irel_entry (struct elf_nds32_irel_entry
**irel_list
,
14260 struct elf_nds32_irel_entry
*irel_ptr
)
14262 if (*irel_list
== NULL
)
14264 *irel_list
= irel_ptr
;
14265 irel_ptr
->next
= NULL
;
14269 irel_ptr
->next
= *irel_list
;
14270 *irel_list
= irel_ptr
;
14275 nds32_elf_ex9_insert_fix (asection
* sec
, Elf_Internal_Rela
* irel
,
14276 struct elf_link_hash_entry
*h
, int order
)
14278 struct elf_nds32_ex9_refix
*ptr
;
14280 ptr
= bfd_malloc (sizeof (struct elf_nds32_ex9_refix
));
14284 ptr
->order
= order
;
14287 if (ex9_refix_head
== NULL
)
14288 ex9_refix_head
= ptr
;
14291 struct elf_nds32_ex9_refix
*temp
= ex9_refix_head
;
14293 while (temp
->next
!= NULL
)
14302 CLEAN_PRE
= 1 << 1,
14306 /* Check relocation type if supporting for ex9. */
14309 nds32_elf_ex9_relocation_check (struct bfd_link_info
*info
,
14310 Elf_Internal_Rela
**irel
,
14311 Elf_Internal_Rela
*irelend
,
14312 nds32_elf_blank_t
*relax_blank_list
,
14313 asection
*sec
,bfd_vma
*off
,
14314 bfd_byte
*contents
)
14316 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
14317 bfd_boolean nested_ex9
, nested_loop
;
14318 bfd_boolean ex9_loop_aware
;
14319 /* We use the highest 1 byte of result to record
14320 how many bytes location counter has to move. */
14322 Elf_Internal_Rela
*irel_save
= NULL
;
14323 struct elf_nds32_link_hash_table
*table
;
14325 table
= nds32_elf_hash_table (info
);
14326 ex9_loop_aware
= table
->ex9_loop_aware
;
14328 while ((*irel
) != NULL
&& (*irel
) < irelend
&& *off
== (*irel
)->r_offset
)
14330 switch (ELF32_R_TYPE ((*irel
)->r_info
))
14332 case R_NDS32_RELAX_REGION_BEGIN
:
14333 /* Ignore code block. */
14334 nested_ex9
= FALSE
;
14335 nested_loop
= FALSE
;
14336 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
)
14338 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
)))
14340 /* Check the region if loop or not. If it is true and
14341 ex9-loop-aware is true, ignore the region till region end. */
14342 /* To save the status for in .no_relax ex9 region and
14343 loop region to conform the block can do ex9 relaxation. */
14344 nested_ex9
= ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
);
14345 nested_loop
= (ex9_loop_aware
14346 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
));
14347 while ((*irel
) && (*irel
) < irelend
&& (nested_ex9
|| nested_loop
))
14350 if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_BEGIN
)
14352 /* There may be nested region. */
14353 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14355 else if (ex9_loop_aware
14356 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14357 nested_loop
= TRUE
;
14359 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_RELAX_REGION_END
)
14361 /* The end of region. */
14362 if (((*irel
)->r_addend
& R_NDS32_RELAX_REGION_NO_EX9_FLAG
) != 0)
14363 nested_ex9
= FALSE
;
14364 else if (ex9_loop_aware
14365 && ((*irel
)->r_addend
& R_NDS32_RELAX_REGION_INNERMOST_LOOP_FLAG
))
14366 nested_loop
= FALSE
;
14368 else if (ELF32_R_TYPE ((*irel
)->r_info
) == R_NDS32_LABEL
14369 && ((*irel
)->r_addend
& 0x1f) == 2)
14371 /* Alignment exist in the region. */
14372 result
|= CLEAN_PRE
;
14373 if (((*irel
)->r_offset
-
14374 get_nds32_elf_blank_total (&relax_blank_list
,
14375 (*irel
)->r_offset
, 0)) & 0x02)
14376 result
|= PUSH_PRE
;
14379 if ((*irel
) >= irelend
)
14382 *off
= (*irel
)->r_offset
;
14384 /* The final instruction in the region, regard this one as data to ignore it. */
14385 result
|= DATA_EXIST
;
14390 case R_NDS32_LABEL
:
14391 if (((*irel
)->r_addend
& 0x1f) == 2)
14393 /* Check this point is align and decide to do ex9 or not. */
14394 result
|= CLEAN_PRE
;
14395 if (((*irel
)->r_offset
-
14396 get_nds32_elf_blank_total (&relax_blank_list
,
14397 (*irel
)->r_offset
, 0)) & 0x02)
14398 result
|= PUSH_PRE
;
14401 case R_NDS32_32_RELA
:
14403 result
|= (4 << 24);
14404 result
|= DATA_EXIST
;
14406 case R_NDS32_16_RELA
:
14408 result
|= (2 << 24);
14409 result
|= DATA_EXIST
;
14413 /* The least code alignment is 2. If the data is only one byte,
14414 we have to shift one more byte. */
14415 if ((*irel
)->r_addend
== 1)
14416 result
|= ((*irel
)->r_addend
<< 25) ;
14418 result
|= ((*irel
)->r_addend
<< 24) ;
14420 result
|= DATA_EXIST
;
14423 case R_NDS32_25_PCREL_RELA
:
14424 case R_NDS32_SDA16S3_RELA
:
14425 case R_NDS32_SDA15S3_RELA
:
14426 case R_NDS32_SDA15S3
:
14427 case R_NDS32_SDA17S2_RELA
:
14428 case R_NDS32_SDA15S2_RELA
:
14429 case R_NDS32_SDA12S2_SP_RELA
:
14430 case R_NDS32_SDA12S2_DP_RELA
:
14431 case R_NDS32_SDA15S2
:
14432 case R_NDS32_SDA18S1_RELA
:
14433 case R_NDS32_SDA15S1_RELA
:
14434 case R_NDS32_SDA15S1
:
14435 case R_NDS32_SDA19S0_RELA
:
14436 case R_NDS32_SDA15S0_RELA
:
14437 case R_NDS32_SDA15S0
:
14438 case R_NDS32_HI20_RELA
:
14439 case R_NDS32_LO12S0_ORI_RELA
:
14440 case R_NDS32_LO12S0_RELA
:
14441 case R_NDS32_LO12S1_RELA
:
14442 case R_NDS32_LO12S2_RELA
:
14443 /* These relocation is supported ex9 relaxation currently. */
14444 /* We have to save the relocation for using later, since we have
14445 to check there is any alignment in the same address. */
14449 /* Not support relocations. */
14450 if (ELF32_R_TYPE ((*irel
)->r_info
) < ARRAY_SIZE (nds32_elf_howto_table
)
14451 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_NONE
14452 && ELF32_R_TYPE ((*irel
)->r_info
) != R_NDS32_INSN16
)
14454 /* Note: To optimize aggressively, it maybe can ignore R_NDS32_INSN16 here.
14455 But we have to consider if there is any side-effect. */
14456 if (!(result
& DATA_EXIST
))
14458 /* We have to confirm there is no data relocation in the
14459 same address. In general case, this won't happen. */
14460 /* We have to do ex9 conservative, for those relocation not
14461 considerd we ignore instruction. */
14462 result
|= DATA_EXIST
;
14463 if (*(contents
+ *off
) & 0x80)
14464 result
|= (2 << 24);
14466 result
|= (4 << 24);
14471 if ((*irel
) < irelend
14472 && ((*irel
) + 1) < irelend
14473 && (*irel
)->r_offset
== ((*irel
) + 1)->r_offset
)
14474 /* There are relocations pointing to the same address, we have to
14475 check all of them. */
14487 /* Replace with ex9 instruction. */
14490 nds32_elf_ex9_push_insn (uint16_t insn16
, bfd_byte
*contents
, bfd_vma pre_off
,
14491 nds32_elf_blank_t
**relax_blank_list
,
14492 struct elf_nds32_irel_entry
*pre_irel_ptr
,
14493 struct elf_nds32_irel_entry
**irel_list
)
14497 /* Implement the ex9 relaxation. */
14498 bfd_putb16 (insn16
, contents
+ pre_off
);
14499 if (!insert_nds32_elf_blank_recalc_total (relax_blank_list
,
14502 if (pre_irel_ptr
!= NULL
)
14503 nds32_elf_insert_irel_entry (irel_list
, pre_irel_ptr
);
14508 /* Replace input file instruction which is in ex9 itable. */
14511 nds32_elf_ex9_replace_instruction (struct bfd_link_info
*info
, bfd
*abfd
, asection
*sec
)
14513 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
14514 bfd_byte
*contents
= NULL
;
14516 uint16_t insn16
, insn_ex9
;
14517 /* `pre_*' are used to track previous instruction that can use ex9.it. */
14518 bfd_vma pre_off
= -1;
14519 uint16_t pre_insn16
= 0;
14520 struct elf_nds32_irel_entry
*pre_irel_ptr
= NULL
;
14521 Elf_Internal_Rela
*internal_relocs
;
14522 Elf_Internal_Rela
*irel
;
14523 Elf_Internal_Rela
*irelend
;
14524 Elf_Internal_Shdr
*symtab_hdr
;
14525 Elf_Internal_Sym
*isym
= NULL
;
14526 nds32_elf_blank_t
*relax_blank_list
= NULL
;
14528 uint32_t insn_with_reg
= 0;
14530 uint32_t it_insn_with_reg
;
14531 unsigned long r_symndx
;
14533 struct elf_nds32_irel_entry
*irel_list
= NULL
;
14534 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (abfd
);
14535 int data_flag
, do_replace
, save_irel
;
14536 struct elf_link_hash_entry_list
*h_list
;
14539 /* Load section instructions, relocations, and symbol table. */
14540 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
)
14541 || !nds32_get_local_syms (abfd
, sec
, &isym
))
14544 _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
, TRUE
/* keep_memory */);
14545 irelend
= internal_relocs
+ sec
->reloc_count
;
14546 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
14550 /* Check if the object enable ex9. */
14551 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
,
14552 irelend
, R_NDS32_RELAX_ENTRY
);
14554 /* Check this section trigger ex9 relaxation. */
14557 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
14558 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
14559 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
14562 irel
= internal_relocs
;
14564 /* Check alignment and fetch proper relocation. */
14565 while (off
< sec
->size
)
14567 struct elf_link_hash_entry
*h
= NULL
;
14568 struct elf_nds32_irel_entry
*irel_ptr
= NULL
;
14570 /* Syn the instruction and the relocation. */
14571 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
14574 data_flag
= nds32_elf_ex9_relocation_check (info
, &irel
, irelend
,
14575 relax_blank_list
, sec
,
14577 if (data_flag
& PUSH_PRE
)
14578 if (!nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14579 &relax_blank_list
, pre_irel_ptr
,
14583 if (data_flag
& CLEAN_PRE
)
14587 pre_irel_ptr
= NULL
;
14589 if (data_flag
& DATA_EXIST
)
14591 /* We save the move offset in the highest byte. */
14592 off
+= (data_flag
>> 24);
14596 if (*(contents
+ off
) & 0x80)
14598 /* 2-byte instruction. */
14603 /* Load the instruction and its opcode with register for comparing. */
14604 ex9_insn
= ex9_insn_head
;
14605 insn
= bfd_getb32 (contents
+ off
);
14609 it_insn
= strtol (ex9_insn
->string
, NULL
, 16);
14610 it_insn_with_reg
= 0;
14614 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
14616 /* Insn with relocation. */
14617 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
14619 if (ex9_insn
->irel
!= NULL
)
14620 nds32_elf_get_insn_with_reg (ex9_insn
->irel
, it_insn
,
14621 &it_insn_with_reg
);
14623 if (ex9_insn
->irel
!= NULL
14624 && (ELF32_R_TYPE (irel
->r_info
) ==
14625 ELF32_R_TYPE (ex9_insn
->irel
->r_info
))
14626 && (insn_with_reg
== it_insn_with_reg
))
14628 /* Insn relocation and format is the same as table entry. */
14630 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
14631 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
14632 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
14633 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
14634 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
14635 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
14636 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
14637 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
14638 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
14639 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
14640 && ELF32_R_TYPE (irel
->r_info
) <=
14641 R_NDS32_SDA12S2_SP_RELA
)
14642 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
14643 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
14645 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14646 if (r_symndx
< symtab_hdr
->sh_info
)
14648 /* Local symbol. */
14649 int shndx
= isym
[r_symndx
].st_shndx
;
14651 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14652 if (ex9_insn
->sec
== isec
14653 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14654 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14662 /* External symbol. */
14663 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14664 if (ex9_insn
->m_list
)
14666 h_list
= ex9_insn
->m_list
->h_list
;
14670 && (ex9_insn
->m_list
->irel
->r_addend
==
14677 h_list
= h_list
->next
;
14682 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
)
14684 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14685 if (r_symndx
< symtab_hdr
->sh_info
)
14687 /* Local symbols. Compare its base symbol and offset. */
14688 int shndx
= isym
[r_symndx
].st_shndx
;
14690 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
14691 if (ex9_insn
->sec
== isec
14692 && ex9_insn
->irel
->r_addend
== irel
->r_addend
14693 && ex9_insn
->irel
->r_info
== irel
->r_info
)
14701 /* External symbol. */
14702 struct elf_link_hash_entry_mul_list
*m_list
;
14704 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14705 m_list
= ex9_insn
->m_list
;
14709 h_list
= m_list
->h_list
;
14714 && (m_list
->irel
->r_addend
14715 == irel
->r_addend
))
14720 && ex9_insn
->m_list
14721 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
14723 /* sethi multiple entry must be fixed */
14724 nds32_elf_ex9_insert_fix (sec
, irel
,
14725 h
, ex9_insn
->order
);
14729 h_list
= h_list
->next
;
14731 m_list
= m_list
->next
;
14737 /* Import table: Check the symbol hash table and the
14738 jump target. Only R_NDS32_25_PCREL_RELA now. */
14739 else if (ex9_insn
->times
== -1
14740 && ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
)
14742 nds32_elf_get_insn_with_reg (irel
, it_insn
, &it_insn_with_reg
);
14743 if (insn_with_reg
== it_insn_with_reg
)
14746 bfd_vma relocation
;
14748 r_symndx
= ELF32_R_SYM (irel
->r_info
);
14749 if (r_symndx
>= symtab_hdr
->sh_info
)
14751 h
= sym_hashes
[r_symndx
- symtab_hdr
->sh_info
];
14752 if ((h
->root
.type
== bfd_link_hash_defined
14753 || h
->root
.type
== bfd_link_hash_defweak
)
14754 && h
->root
.u
.def
.section
!= NULL
14755 && h
->root
.u
.def
.section
->output_section
!= NULL
14756 && h
->root
.u
.def
.section
->gc_mark
== 1
14757 && bfd_is_abs_section (h
->root
.u
.def
.section
)
14758 && h
->root
.u
.def
.value
> sec
->size
)
14760 relocation
= h
->root
.u
.def
.value
+
14761 h
->root
.u
.def
.section
->output_section
->vma
+
14762 h
->root
.u
.def
.section
->output_offset
;
14763 relocation
+= irel
->r_addend
;
14764 insn
= insn_with_reg
14765 | ((relocation
>> 1) & 0xffffff);
14766 snprintf (code
, sizeof (code
), "%08x", insn
);
14767 if (strcmp (code
, ex9_insn
->string
) == 0)
14776 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
14777 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
14778 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
14780 /* These relocations do not have to relocate contens, so it can
14781 be regard as instruction without relocation. */
14782 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14788 /* Instruction without relocation, we only
14789 have to compare their byte code. */
14790 if (insn
== it_insn
&& ex9_insn
->irel
== NULL
)
14794 /* Insntruction match so replacing the code here. */
14795 if (do_replace
== 1)
14797 /* There are two formats of ex9 instruction. */
14798 if (ex9_insn
->order
< 32)
14799 insn_ex9
= INSN_EX9_IT_2
;
14801 insn_ex9
= INSN_EX9_IT_1
;
14802 insn16
= insn_ex9
| ex9_insn
->order
;
14804 /* Insert ex9 instruction. */
14805 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14806 &relax_blank_list
, pre_irel_ptr
,
14809 pre_insn16
= insn16
;
14813 /* For instuction with relocation do relax. */
14814 irel_ptr
= (struct elf_nds32_irel_entry
*)
14815 bfd_malloc (sizeof (struct elf_nds32_irel_entry
));
14816 irel_ptr
->irel
= irel
;
14817 irel_ptr
->next
= NULL
;
14818 pre_irel_ptr
= irel_ptr
;
14821 pre_irel_ptr
= NULL
;
14824 ex9_insn
= ex9_insn
->next
;
14829 /* Insert ex9 instruction. */
14830 nds32_elf_ex9_push_insn (pre_insn16
, contents
, pre_off
,
14831 &relax_blank_list
, pre_irel_ptr
,
14834 /* Delete the redundant code. */
14835 if (relax_blank_list
)
14837 nds32_elf_relax_delete_blanks (abfd
, sec
, relax_blank_list
);
14838 relax_blank_list
= NULL
;
14841 /* Clear the relocation that is replaced by ex9. */
14844 struct elf_nds32_irel_entry
*irel_ptr
;
14846 irel_ptr
= irel_list
;
14847 irel_list
= irel_ptr
->next
;
14848 irel_ptr
->irel
->r_info
=
14849 ELF32_R_INFO (ELF32_R_SYM (irel_ptr
->irel
->r_info
), R_NDS32_TRAN
);
14855 /* Initialize ex9 hash table. */
14858 nds32_elf_ex9_init (void)
14860 if (!bfd_hash_table_init_n (&ex9_code_table
, nds32_elf_code_hash_newfunc
,
14861 sizeof (struct elf_nds32_code_hash_entry
),
14864 (*_bfd_error_handler
) (_("Linker: cannot init ex9 hash table error \n"));
14870 /* Predict how many bytes will be relaxed with ex9 and ifc. */
14873 nds32_elf_ex9_total_relax (struct bfd_link_info
*info
)
14875 struct elf_nds32_insn_times_entry
*ex9_insn
;
14876 struct elf_nds32_insn_times_entry
*temp
;
14877 int target_optimize
;
14878 struct elf_nds32_link_hash_table
*table
;
14880 if (ex9_insn_head
== NULL
)
14883 table
= nds32_elf_hash_table (info
);
14884 target_optimize
= table
->target_optimize
;
14885 ex9_insn
= ex9_insn_head
;
14888 ex9_relax_size
= ex9_insn
->times
* 2 + ex9_relax_size
;
14890 ex9_insn
= ex9_insn
->next
;
14893 ex9_insn_head
= NULL
;
14895 if ((target_optimize
& NDS32_RELAX_JUMP_IFC_ON
))
14897 /* Examine ifc reduce size. */
14898 struct elf_nds32_ifc_symbol_entry
*ifc_ent
= ifc_symbol_head
;
14899 struct elf_nds32_ifc_irel_list
*irel_ptr
= NULL
;
14904 if (ifc_ent
->enable
== 0)
14907 irel_ptr
= ifc_ent
->irel_head
;
14911 irel_ptr
= irel_ptr
->next
;
14915 ifc_ent
= ifc_ent
->next
;
14917 ex9_relax_size
+= size
;
14921 /* Finish ex9 table. */
14924 nds32_elf_ex9_finish (struct bfd_link_info
*link_info
)
14926 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
14927 nds32_elf_order_insn_times (link_info
);
14928 nds32_elf_ex9_total_relax (link_info
);
14929 /* Traverse the hash table and count its times. */
14930 nds32_elf_code_hash_traverse (nds32_elf_count_insn_times
);
14931 nds32_elf_order_insn_times (link_info
);
14932 nds32_elf_ex9_build_itable (link_info
);
14935 /* Relocate the entries in ex9 table. */
14938 nds32_elf_ex9_reloc_insn (struct elf_nds32_insn_times_entry
*ptr
,
14939 struct bfd_link_info
*link_info
)
14941 Elf_Internal_Sym
*isym
= NULL
;
14942 bfd_vma relocation
= -1;
14943 struct elf_link_hash_entry
*h
;
14945 if (ptr
->m_list
!= NULL
)
14947 /* Global symbol. */
14948 h
= ptr
->m_list
->h_list
->h
;
14949 if ((h
->root
.type
== bfd_link_hash_defined
14950 || h
->root
.type
== bfd_link_hash_defweak
)
14951 && h
->root
.u
.def
.section
!= NULL
14952 && h
->root
.u
.def
.section
->output_section
!= NULL
)
14955 relocation
= h
->root
.u
.def
.value
+
14956 h
->root
.u
.def
.section
->output_section
->vma
+
14957 h
->root
.u
.def
.section
->output_offset
;
14958 relocation
+= ptr
->m_list
->irel
->r_addend
;
14963 else if (ptr
->sec
!=NULL
)
14965 /* Local symbol. */
14966 Elf_Internal_Sym sym
;
14967 asection
*sec
= NULL
;
14969 asection
*isec_ptr
= &isec
;
14970 Elf_Internal_Rela irel_backup
= *(ptr
->irel
);
14971 asection
*sec_backup
= ptr
->sec
;
14972 bfd
*abfd
= ptr
->sec
->owner
;
14974 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
14976 isym
= isym
+ ELF32_R_SYM (ptr
->irel
->r_info
);
14978 sec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
14983 /* The purpose is same as elf_link_input_bfd. */
14984 if (isec_ptr
!= NULL
14985 && isec_ptr
->sec_info_type
== SEC_INFO_TYPE_MERGE
14986 && ELF_ST_TYPE (isym
->st_info
) != STT_SECTION
)
14989 _bfd_merged_section_offset (ptr
->sec
->output_section
->owner
, &isec_ptr
,
14990 elf_section_data (isec_ptr
)->sec_info
,
14993 relocation
= _bfd_elf_rela_local_sym (link_info
->output_bfd
, &sym
,
14994 &ptr
->sec
, ptr
->irel
);
14995 if (ptr
->irel
!= NULL
)
14996 relocation
+= ptr
->irel
->r_addend
;
14998 /* Restore origin value since there may be some insntructions that
14999 could not be replaced with ex9.it. */
15000 *(ptr
->irel
) = irel_backup
;
15001 ptr
->sec
= sec_backup
;
15007 /* Import ex9 table and build list. */
15010 nds32_elf_ex9_import_table (struct bfd_link_info
*info
)
15013 bfd_byte
*contents
;
15014 unsigned long insn
;
15015 FILE *ex9_import_file
;
15016 int update_ex9_table
;
15017 struct elf_nds32_link_hash_table
*table
;
15019 table
= nds32_elf_hash_table (info
);
15020 ex9_import_file
= table
->ex9_import_file
;
15021 rewind (table
->ex9_import_file
);
15023 contents
= bfd_malloc (sizeof (bfd_byte
) * 4);
15025 /* Read instructions from the input file and build the list. */
15026 while (!feof (ex9_import_file
))
15029 struct elf_nds32_insn_times_entry
*ptr
;
15032 nread
= fread (contents
, sizeof (bfd_byte
) * 4, 1, ex9_import_file
);
15033 /* Ignore the final byte 0x0a. */
15036 insn
= bfd_getb32 (contents
);
15037 code
= bfd_malloc (sizeof (char) * 9);
15038 snprintf (code
, 9, "%08lx", insn
);
15039 ptr
= bfd_malloc (sizeof (struct elf_nds32_insn_times_entry
));
15040 ptr
->string
= code
;
15044 ptr
->m_list
= NULL
;
15045 ptr
->rel_backup
.r_offset
= 0;
15046 ptr
->rel_backup
.r_info
= 0;
15047 ptr
->rel_backup
.r_addend
= 0;
15050 nds32_elf_ex9_insert_entry (ptr
);
15054 update_ex9_table
= table
->update_ex9_table
;
15055 if (update_ex9_table
== 1)
15057 /* It has to consider of sethi need to use multiple page
15058 but it not be done yet. */
15059 nds32_elf_code_hash_traverse (nds32_elf_examine_insn_times
);
15060 nds32_elf_order_insn_times (info
);
15064 /* Export ex9 table. */
15067 nds32_elf_ex9_export (struct bfd_link_info
*info
,
15068 bfd_byte
*contents
, int size
)
15070 FILE *ex9_export_file
;
15071 struct elf_nds32_link_hash_table
*table
;
15073 table
= nds32_elf_hash_table (info
);
15074 ex9_export_file
= table
->ex9_export_file
;
15075 fwrite (contents
, sizeof (bfd_byte
), size
, ex9_export_file
);
15076 fclose (ex9_export_file
);
15079 /* Adjust relocations of J and JAL in ex9.itable.
15080 Export ex9 table. */
15083 nds32_elf_ex9_reloc_jmp (struct bfd_link_info
*link_info
)
15085 asection
*table_sec
= NULL
;
15086 struct elf_nds32_insn_times_entry
*ex9_insn
= ex9_insn_head
;
15087 struct elf_nds32_insn_times_entry
*temp_ptr
, *temp_ptr2
;
15089 uint32_t insn
, insn_with_reg
, source_insn
;
15090 bfd_byte
*contents
= NULL
, *source_contents
= NULL
;
15093 int shift
, update_ex9_table
, offset
= 0;
15094 reloc_howto_type
*howto
= NULL
;
15095 Elf_Internal_Rela rel_backup
;
15096 unsigned short insn_ex9
;
15097 struct elf_nds32_link_hash_table
*table
;
15098 FILE *ex9_export_file
;
15099 static bfd_boolean done
= FALSE
;
15106 table
= nds32_elf_hash_table (link_info
);
15108 table
->relax_status
|= NDS32_RELAX_EX9_DONE
;
15111 update_ex9_table
= table
->update_ex9_table
;
15112 /* Generated ex9.itable exactly. */
15113 if (update_ex9_table
== 0)
15115 for (it_abfd
= link_info
->input_bfds
; it_abfd
!= NULL
;
15116 it_abfd
= it_abfd
->link
.next
)
15118 table_sec
= bfd_get_section_by_name (it_abfd
, ".ex9.itable");
15119 if (table_sec
!= NULL
)
15123 if (table_sec
!= NULL
)
15127 output_bfd
= table_sec
->output_section
->owner
;
15128 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15129 if (table_sec
->size
== 0)
15132 if (!nds32_get_section_contents (it_abfd
, table_sec
, &contents
, TRUE
))
15141 output_bfd
= link_info
->input_bfds
->sections
->output_section
->owner
;
15142 nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15143 contents
= bfd_malloc (sizeof (bfd_byte
) * 2048);
15146 /* Relocate instruction. */
15149 bfd_vma relocation
, min_relocation
= 0xffffffff;
15151 insn
= strtol (ex9_insn
->string
, NULL
, 16);
15153 if (ex9_insn
->m_list
!= NULL
|| ex9_insn
->sec
!= NULL
)
15155 if (ex9_insn
->m_list
)
15156 rel_backup
= ex9_insn
->m_list
->rel_backup
;
15158 rel_backup
= ex9_insn
->rel_backup
;
15160 nds32_elf_get_insn_with_reg (&rel_backup
, insn
, &insn_with_reg
);
15162 bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE
15163 (rel_backup
.r_info
));
15164 shift
= howto
->rightshift
;
15165 if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_25_PCREL_RELA
15166 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_ORI_RELA
15167 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S0_RELA
15168 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S1_RELA
15169 || ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_LO12S2_RELA
)
15171 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15173 insn_with_reg
| ((relocation
>> shift
) &
15174 nds32_elf_irel_mask (&rel_backup
));
15175 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15177 else if ((ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3
15178 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0
)
15179 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA15S3_RELA
15180 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA15S0_RELA
)
15181 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA12S2_DP_RELA
15182 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15183 || (ELF32_R_TYPE (rel_backup
.r_info
) >= R_NDS32_SDA16S3_RELA
15184 && ELF32_R_TYPE (rel_backup
.r_info
) <= R_NDS32_SDA19S0_RELA
))
15186 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15188 insn_with_reg
| (((relocation
- gp
) >> shift
) &
15189 nds32_elf_irel_mask (&rel_backup
));
15190 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15192 else if (ELF32_R_TYPE (rel_backup
.r_info
) == R_NDS32_HI20_RELA
)
15194 /* Sethi may be multiple entry for one insn. */
15195 if (ex9_insn
->next
&& ex9_insn
->m_list
15196 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15198 struct elf_link_hash_entry_mul_list
*m_list
;
15199 struct elf_nds32_ex9_refix
*fix_ptr
;
15200 struct elf_link_hash_entry
*h
;
15202 temp_ptr
= ex9_insn
;
15203 temp_ptr2
= ex9_insn
;
15204 m_list
= ex9_insn
->m_list
;
15207 h
= m_list
->h_list
->h
;
15208 relocation
= h
->root
.u
.def
.value
+
15209 h
->root
.u
.def
.section
->output_section
->vma
+
15210 h
->root
.u
.def
.section
->output_offset
;
15211 relocation
+= m_list
->irel
->r_addend
;
15213 if (relocation
< min_relocation
)
15214 min_relocation
= relocation
;
15215 m_list
= m_list
->next
;
15217 relocation
= min_relocation
;
15219 /* Put insntruction into ex9 table. */
15220 insn
= insn_with_reg
15221 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15222 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15223 relocation
= relocation
+ 0x1000; /* hi20 */
15225 while (ex9_insn
->next
&& ex9_insn
->m_list
15226 && ex9_insn
->m_list
== ex9_insn
->next
->m_list
)
15228 /* Multiple sethi. */
15229 ex9_insn
= ex9_insn
->next
;
15232 insn_with_reg
| ((relocation
>> shift
) &
15233 nds32_elf_irel_mask (&rel_backup
));
15234 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15235 relocation
= relocation
+ 0x1000; /* hi20 */
15238 fix_ptr
= ex9_refix_head
;
15241 /* Fix ex9 insn. */
15242 /* temp_ptr2 points to the head of multiple sethi. */
15243 temp_ptr
= temp_ptr2
;
15244 while (fix_ptr
->order
!= temp_ptr
->order
&& fix_ptr
->next
)
15246 fix_ptr
= fix_ptr
->next
;
15248 if (fix_ptr
->order
!= temp_ptr
->order
)
15251 /* Set source insn. */
15253 fix_ptr
->h
->root
.u
.def
.value
+
15254 fix_ptr
->h
->root
.u
.def
.section
->output_section
->vma
+
15255 fix_ptr
->h
->root
.u
.def
.section
->output_offset
;
15256 relocation
+= fix_ptr
->irel
->r_addend
;
15257 /* sethi imm is imm20s. */
15258 source_insn
= insn_with_reg
| ((relocation
>> shift
) & 0xfffff);
15262 /* Match entry and source code. */
15263 insn
= bfd_getb32 (contents
+ (temp_ptr
->order
) * 4 + offset
);
15264 if (insn
== source_insn
)
15266 /* Fix the ex9 insn. */
15267 if (temp_ptr
->order
!= fix_ptr
->order
)
15269 if (!nds32_get_section_contents
15270 (fix_ptr
->sec
->owner
, fix_ptr
->sec
,
15271 &source_contents
, TRUE
))
15272 (*_bfd_error_handler
)
15273 (_("Linker: error cannot fixed ex9 relocation \n"));
15274 if (temp_ptr
->order
< 32)
15275 insn_ex9
= INSN_EX9_IT_2
;
15277 insn_ex9
= INSN_EX9_IT_1
;
15278 insn_ex9
= insn_ex9
| temp_ptr
->order
;
15279 bfd_putb16 (insn_ex9
, source_contents
+ fix_ptr
->irel
->r_offset
);
15285 if (!temp_ptr
->next
|| temp_ptr
->m_list
!= temp_ptr
->next
->m_list
)
15286 (*_bfd_error_handler
)
15287 (_("Linker: error cannot fixed ex9 relocation \n"));
15289 temp_ptr
= temp_ptr
->next
;
15292 fix_ptr
= fix_ptr
->next
;
15297 relocation
= nds32_elf_ex9_reloc_insn (ex9_insn
, link_info
);
15298 insn
= insn_with_reg
15299 | ((relocation
>> shift
) & nds32_elf_irel_mask (&rel_backup
));
15300 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15306 /* Insn without relocation does not have to be fixed
15307 if need to update export table. */
15308 if (update_ex9_table
== 1)
15309 bfd_putb32 (insn
, contents
+ (ex9_insn
->order
) * 4);
15311 ex9_insn
= ex9_insn
->next
;
15315 ex9_export_file
= table
->ex9_export_file
;
15316 if (ex9_export_file
!= NULL
)
15317 nds32_elf_ex9_export (link_info
, contents
, table_sec
->size
);
15318 else if (update_ex9_table
== 1)
15320 table
->ex9_export_file
= table
->ex9_import_file
;
15321 rewind (table
->ex9_export_file
);
15322 nds32_elf_ex9_export (link_info
, contents
, size
);
15326 /* Generate ex9 hash table. */
15329 nds32_elf_ex9_build_hash_table (bfd
*abfd
, asection
*sec
,
15330 struct bfd_link_info
*link_info
)
15332 Elf_Internal_Rela
*internal_relocs
;
15333 Elf_Internal_Rela
*irelend
;
15334 Elf_Internal_Rela
*irel
;
15335 Elf_Internal_Rela
*jrel
;
15336 Elf_Internal_Rela rel_backup
;
15337 Elf_Internal_Shdr
*symtab_hdr
;
15338 Elf_Internal_Sym
*isym
= NULL
;
15340 struct elf_link_hash_entry
**sym_hashes
;
15341 bfd_byte
*contents
= NULL
;
15343 unsigned long r_symndx
;
15344 uint32_t insn
, insn_with_reg
;
15345 struct elf_link_hash_entry
*h
;
15346 int data_flag
, shift
, align
;
15347 bfd_vma relocation
;
15348 /* Suppress ex9 if `.no_relax ex9' or inner loop. */
15349 reloc_howto_type
*howto
= NULL
;
15351 sym_hashes
= elf_sym_hashes (abfd
);
15352 /* Load section instructions, relocations, and symbol table. */
15353 if (!nds32_get_section_contents (abfd
, sec
, &contents
, TRUE
))
15356 internal_relocs
= _bfd_elf_link_read_relocs (abfd
, sec
, NULL
, NULL
,
15357 TRUE
/* keep_memory */);
15358 irelend
= internal_relocs
+ sec
->reloc_count
;
15359 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
15360 if (!nds32_get_local_syms (abfd
, sec
, &isym
))
15363 /* Check the object if enable ex9. */
15364 irel
= find_relocs_at_address (internal_relocs
, internal_relocs
, irelend
,
15365 R_NDS32_RELAX_ENTRY
);
15367 /* Check this section trigger ex9 relaxation. */
15370 || ELF32_R_TYPE (irel
->r_info
) != R_NDS32_RELAX_ENTRY
15371 || (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_ENTRY
15372 && !(irel
->r_addend
& R_NDS32_RELAX_ENTRY_EX9_FLAG
)))
15375 irel
= internal_relocs
;
15377 /* Push each insn into hash table. */
15378 while (off
< sec
->size
)
15381 struct elf_nds32_code_hash_entry
*entry
;
15383 while (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
< off
)
15386 data_flag
= nds32_elf_ex9_relocation_check (link_info
, &irel
, irelend
,
15387 NULL
, sec
, &off
, contents
);
15388 if (data_flag
& DATA_EXIST
)
15390 /* We save the move offset in the highest byte. */
15391 off
+= (data_flag
>> 24);
15395 if (*(contents
+ off
) & 0x80)
15404 rel_backup
.r_info
= 0;
15405 rel_backup
.r_offset
= 0;
15406 rel_backup
.r_addend
= 0;
15407 /* Load the instruction and its opcode with register for comparing. */
15408 insn
= bfd_getb32 (contents
+ off
);
15410 if (irel
!= NULL
&& irel
< irelend
&& irel
->r_offset
== off
)
15412 nds32_elf_get_insn_with_reg (irel
, insn
, &insn_with_reg
);
15413 howto
= bfd_elf32_bfd_reloc_type_table_lookup (ELF32_R_TYPE (irel
->r_info
));
15414 shift
= howto
->rightshift
;
15415 align
= (1 << shift
) - 1;
15416 if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_25_PCREL_RELA
15417 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_HI20_RELA
15418 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_ORI_RELA
15419 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S0_RELA
15420 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S1_RELA
15421 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_LO12S2_RELA
15422 ||(ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15423 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15424 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15425 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15426 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15427 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15428 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15429 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15431 r_symndx
= ELF32_R_SYM (irel
->r_info
);
15433 rel_backup
= *irel
;
15434 if (r_symndx
< symtab_hdr
->sh_info
)
15436 /* Local symbol. */
15437 int shndx
= isym
[r_symndx
].st_shndx
;
15439 bfd_vma st_value
= (isym
+ r_symndx
)->st_value
;
15440 isec
= elf_elfsections (abfd
)[shndx
]->bfd_section
;
15441 relocation
= (isec
->output_section
->vma
+ isec
->output_offset
15442 + st_value
+ irel
->r_addend
);
15446 /* External symbol. */
15447 bfd_boolean warned ATTRIBUTE_UNUSED
;
15448 bfd_boolean ignored ATTRIBUTE_UNUSED
;
15449 bfd_boolean unresolved_reloc ATTRIBUTE_UNUSED
;
15452 /* Maybe there is a better way to get h and relocation */
15453 RELOC_FOR_GLOBAL_SYMBOL (link_info
, abfd
, sec
, irel
,
15454 r_symndx
, symtab_hdr
, sym_hashes
,
15455 h
, sym_sec
, relocation
,
15456 unresolved_reloc
, warned
, ignored
);
15457 relocation
+= irel
->r_addend
;
15458 if ((h
->root
.type
!= bfd_link_hash_defined
15459 && h
->root
.type
!= bfd_link_hash_defweak
)
15460 || strcmp (h
->root
.root
.string
, "_FP_BASE_") == 0)
15467 /* Check for gp relative instruction alignment. */
15468 if ((ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3
15469 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0
)
15470 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA15S3_RELA
15471 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA15S0_RELA
)
15472 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA12S2_DP_RELA
15473 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA12S2_SP_RELA
)
15474 || (ELF32_R_TYPE (irel
->r_info
) >= R_NDS32_SDA16S3_RELA
15475 && ELF32_R_TYPE (irel
->r_info
) <= R_NDS32_SDA19S0_RELA
))
15478 bfd
*output_bfd
= sec
->output_section
->owner
;
15479 bfd_reloc_status_type r
;
15481 /* If the symbol is in the abs section, the out_bfd will be null.
15482 This happens when the relocation has a symbol@GOTOFF. */
15483 r
= nds32_elf_final_sda_base (output_bfd
, link_info
, &gp
, FALSE
);
15484 if (r
!= bfd_reloc_ok
)
15492 /* Make sure alignment is correct. */
15493 if (relocation
& align
)
15495 /* Incorrect alignment. */
15496 (*_bfd_error_handler
)
15497 (_("%s: warning: unaligned small data access. "
15498 "For entry: {%d, %d, %d}, addr = 0x%x, align = 0x%x."),
15499 bfd_get_filename (abfd
), irel
->r_offset
,
15500 irel
->r_info
, irel
->r_addend
, relocation
, align
);
15506 insn
= insn_with_reg
15507 | ((relocation
>> shift
) & nds32_elf_irel_mask (irel
));
15509 else if (ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_BEGIN
15510 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_RELAX_REGION_END
15511 || ELF32_R_TYPE (irel
->r_info
) == R_NDS32_NONE
)
15513 /* These relocations do not have to relocate contens, so it can
15514 be regard as instruction without relocation. */
15523 snprintf (code
, sizeof (code
), "%08x", insn
);
15525 entry
= (struct elf_nds32_code_hash_entry
*)
15526 bfd_hash_lookup (&ex9_code_table
, code
, TRUE
, TRUE
);
15529 (*_bfd_error_handler
)
15530 (_("%P%F: failed creating ex9.it %s hash table: %E\n"), code
);
15535 if (h
->root
.type
== bfd_link_hash_undefined
)
15537 /* Global symbol. */
15538 /* In order to do sethi with different symbol but same value. */
15539 if (entry
->m_list
== NULL
)
15541 struct elf_link_hash_entry_mul_list
*m_list_new
;
15542 struct elf_link_hash_entry_list
*h_list_new
;
15544 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15545 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15546 h_list_new
= (struct elf_link_hash_entry_list
*)
15547 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15548 entry
->m_list
= m_list_new
;
15549 m_list_new
->h_list
= h_list_new
;
15550 m_list_new
->rel_backup
= rel_backup
;
15551 m_list_new
->times
= 1;
15552 m_list_new
->irel
= jrel
;
15553 m_list_new
->next
= NULL
;
15555 h_list_new
->next
= NULL
;
15559 struct elf_link_hash_entry_mul_list
*m_list
= entry
->m_list
;
15560 struct elf_link_hash_entry_list
*h_list
;
15564 /* Build the different symbols that point to the same address. */
15565 h_list
= m_list
->h_list
;
15566 if (h_list
->h
->root
.u
.def
.value
== h
->root
.u
.def
.value
15567 && h_list
->h
->root
.u
.def
.section
->output_section
->vma
15568 == h
->root
.u
.def
.section
->output_section
->vma
15569 && h_list
->h
->root
.u
.def
.section
->output_offset
15570 == h
->root
.u
.def
.section
->output_offset
15571 && m_list
->rel_backup
.r_addend
== rel_backup
.r_addend
)
15574 m_list
->irel
= jrel
;
15575 while (h_list
->h
!= h
&& h_list
->next
)
15576 h_list
= h_list
->next
;
15577 if (h_list
->h
!= h
)
15579 struct elf_link_hash_entry_list
*h_list_new
;
15581 h_list_new
= (struct elf_link_hash_entry_list
*)
15582 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15583 h_list
->next
= h_list_new
;
15585 h_list_new
->next
= NULL
;
15589 /* The sethi case may have different address but the
15590 hi20 is the same. */
15591 else if (ELF32_R_TYPE (jrel
->r_info
) == R_NDS32_HI20_RELA
15592 && m_list
->next
== NULL
)
15594 struct elf_link_hash_entry_mul_list
*m_list_new
;
15595 struct elf_link_hash_entry_list
*h_list_new
;
15597 m_list_new
= (struct elf_link_hash_entry_mul_list
*)
15598 bfd_malloc (sizeof (struct elf_link_hash_entry_mul_list
));
15599 h_list_new
= (struct elf_link_hash_entry_list
*)
15600 bfd_malloc (sizeof (struct elf_link_hash_entry_list
));
15601 m_list
->next
= m_list_new
;
15602 m_list_new
->h_list
= h_list_new
;
15603 m_list_new
->rel_backup
= rel_backup
;
15604 m_list_new
->times
= 1;
15605 m_list_new
->irel
= jrel
;
15606 m_list_new
->next
= NULL
;
15608 h_list_new
->next
= NULL
;
15611 m_list
= m_list
->next
;
15622 /* Local symbol and insn without relocation*/
15624 entry
->rel_backup
= rel_backup
;
15627 /* Use in sethi insn with constant and global symbol in same format. */
15629 entry
->const_insn
= 1;
15631 entry
->irel
= jrel
;
15639 /* Set the _ITB_BASE, and point it to ex9 table. */
15642 nds32_elf_ex9_itb_base (struct bfd_link_info
*link_info
)
15646 bfd
*output_bfd
= NULL
;
15647 struct bfd_link_hash_entry
*bh
= NULL
;
15649 if (is_ITB_BASE_set
== 1)
15652 is_ITB_BASE_set
= 1;
15654 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_", FALSE
, FALSE
, TRUE
);
15656 if (bh
&& (bh
->type
== bfd_link_hash_defined
15657 || bh
->type
== bfd_link_hash_defweak
))
15660 for (abfd
= link_info
->input_bfds
; abfd
!= NULL
;
15661 abfd
= abfd
->link
.next
)
15663 sec
= bfd_get_section_by_name (abfd
, ".ex9.itable");
15666 output_bfd
= sec
->output_section
->owner
;
15670 if (output_bfd
== NULL
)
15672 output_bfd
= link_info
->output_bfd
;
15673 if (output_bfd
->sections
== NULL
)
15676 sec
= bfd_abs_section_ptr
;
15678 bh
= bfd_link_hash_lookup (link_info
->hash
, "_ITB_BASE_",
15679 FALSE
, FALSE
, TRUE
);
15680 return (_bfd_generic_link_add_one_symbol
15681 (link_info
, output_bfd
, "_ITB_BASE_",
15682 BSF_GLOBAL
| BSF_WEAK
, sec
, 0,
15683 (const char *) NULL
, FALSE
, get_elf_backend_data
15684 (output_bfd
)->collect
, &bh
));
15688 #define ELF_ARCH bfd_arch_nds32
15689 #define ELF_MACHINE_CODE EM_NDS32
15690 #define ELF_MAXPAGESIZE 0x1000
15691 #define ELF_TARGET_ID NDS32_ELF_DATA
15693 #define TARGET_BIG_SYM nds32_elf32_be_vec
15694 #define TARGET_BIG_NAME "elf32-nds32be"
15695 #define TARGET_LITTLE_SYM nds32_elf32_le_vec
15696 #define TARGET_LITTLE_NAME "elf32-nds32le"
15698 #define elf_info_to_howto nds32_info_to_howto
15699 #define elf_info_to_howto_rel nds32_info_to_howto_rel
15701 #define bfd_elf32_bfd_link_hash_table_create nds32_elf_link_hash_table_create
15702 #define bfd_elf32_bfd_merge_private_bfd_data nds32_elf_merge_private_bfd_data
15703 #define bfd_elf32_bfd_print_private_bfd_data nds32_elf_print_private_bfd_data
15704 #define bfd_elf32_bfd_relax_section nds32_elf_relax_section
15705 #define bfd_elf32_bfd_set_private_flags nds32_elf_set_private_flags
15707 #define bfd_elf32_mkobject nds32_elf_mkobject
15708 #define elf_backend_action_discarded nds32_elf_action_discarded
15709 #define elf_backend_add_symbol_hook nds32_elf_add_symbol_hook
15710 #define elf_backend_check_relocs nds32_elf_check_relocs
15711 #define elf_backend_adjust_dynamic_symbol nds32_elf_adjust_dynamic_symbol
15712 #define elf_backend_create_dynamic_sections nds32_elf_create_dynamic_sections
15713 #define elf_backend_finish_dynamic_sections nds32_elf_finish_dynamic_sections
15714 #define elf_backend_finish_dynamic_symbol nds32_elf_finish_dynamic_symbol
15715 #define elf_backend_size_dynamic_sections nds32_elf_size_dynamic_sections
15716 #define elf_backend_relocate_section nds32_elf_relocate_section
15717 #define elf_backend_gc_mark_hook nds32_elf_gc_mark_hook
15718 #define elf_backend_gc_sweep_hook nds32_elf_gc_sweep_hook
15719 #define elf_backend_grok_prstatus nds32_elf_grok_prstatus
15720 #define elf_backend_grok_psinfo nds32_elf_grok_psinfo
15721 #define elf_backend_reloc_type_class nds32_elf_reloc_type_class
15722 #define elf_backend_copy_indirect_symbol nds32_elf_copy_indirect_symbol
15723 #define elf_backend_link_output_symbol_hook nds32_elf_output_symbol_hook
15724 #define elf_backend_output_arch_syms nds32_elf_output_arch_syms
15725 #define elf_backend_object_p nds32_elf_object_p
15726 #define elf_backend_final_write_processing nds32_elf_final_write_processing
15727 #define elf_backend_special_sections nds32_elf_special_sections
15728 #define bfd_elf32_bfd_get_relocated_section_contents \
15729 nds32_elf_get_relocated_section_contents
15731 #define elf_backend_can_gc_sections 1
15732 #define elf_backend_can_refcount 1
15733 #define elf_backend_want_got_plt 1
15734 #define elf_backend_plt_readonly 1
15735 #define elf_backend_want_plt_sym 0
15736 #define elf_backend_got_header_size 12
15737 #define elf_backend_may_use_rel_p 1
15738 #define elf_backend_default_use_rela_p 1
15739 #define elf_backend_may_use_rela_p 1
15741 #include "elf32-target.h"
15743 #undef ELF_MAXPAGESIZE
15744 #define ELF_MAXPAGESIZE 0x2000
15746 #undef TARGET_BIG_SYM
15747 #define TARGET_BIG_SYM nds32_elf32_linux_be_vec
15748 #undef TARGET_BIG_NAME
15749 #define TARGET_BIG_NAME "elf32-nds32be-linux"
15750 #undef TARGET_LITTLE_SYM
15751 #define TARGET_LITTLE_SYM nds32_elf32_linux_le_vec
15752 #undef TARGET_LITTLE_NAME
15753 #define TARGET_LITTLE_NAME "elf32-nds32le-linux"
15755 #define elf32_bed elf32_nds32_lin_bed
15757 #include "elf32-target.h"