1 /* Ubicom IP2xxx specific support for 32-bit ELF
2 Copyright 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 /* Struct used to pass miscellaneous paramaters which
27 helps to avoid overly long parameter lists. */
30 Elf_Internal_Shdr * symtab_hdr;
31 Elf_Internal_Rela * irelbase;
33 Elf_Internal_Sym * isymbuf;
38 unsigned short opcode;
43 static reloc_howto_type *ip2k_reloc_type_lookup
44 PARAMS ((bfd *, bfd_reloc_code_real_type));
45 static int ip2k_is_opcode
46 PARAMS ((bfd_byte *, const struct ip2k_opcode *));
47 static bfd_vma symbol_value
48 PARAMS ((bfd *, Elf_Internal_Shdr *, Elf_Internal_Sym *,
49 Elf_Internal_Rela *));
50 static void ip2k_get_mem
51 PARAMS ((bfd *, bfd_byte *, int, bfd_byte *));
52 static bfd_vma ip2k_nominal_page_bits
53 PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
54 static bfd_boolean ip2k_test_page_insn
55 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, struct misc *));
56 static bfd_boolean ip2k_delete_page_insn
57 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
58 static int ip2k_is_switch_table_128
59 PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
60 static bfd_boolean ip2k_relax_switch_table_128
61 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
62 static int ip2k_is_switch_table_256
63 PARAMS ((bfd *, asection *, bfd_vma, bfd_byte *));
64 static bfd_boolean ip2k_relax_switch_table_256
65 PARAMS ((bfd *, asection *, Elf_Internal_Rela *, bfd_boolean *, struct misc *));
66 static bfd_boolean ip2k_elf_relax_section
67 PARAMS ((bfd *, asection *, struct bfd_link_info *, bfd_boolean *));
68 static bfd_boolean ip2k_elf_relax_section_page
69 PARAMS ((bfd *, asection *, bfd_boolean *, struct misc *, unsigned long, unsigned long));
70 static void adjust_all_relocations
71 PARAMS ((bfd *, asection *, bfd_vma, bfd_vma, int, int));
72 static bfd_boolean ip2k_elf_relax_delete_bytes
73 PARAMS ((bfd *, asection *, bfd_vma, int));
74 static void ip2k_info_to_howto_rela
75 PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
76 static bfd_reloc_status_type ip2k_final_link_relocate
77 PARAMS ((reloc_howto_type *, bfd *, asection *, bfd_byte *,
78 Elf_Internal_Rela *, bfd_vma));
79 static bfd_boolean ip2k_elf_relocate_section
80 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
81 Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
82 static asection *ip2k_elf_gc_mark_hook
83 PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *,
84 struct elf_link_hash_entry *, Elf_Internal_Sym *));
85 static bfd_boolean ip2k_elf_gc_sweep_hook
86 PARAMS ((bfd *, struct bfd_link_info *, asection *,
87 const Elf_Internal_Rela *));
89 static bfd_boolean ip2k_relaxed = FALSE;
91 static const struct ip2k_opcode ip2k_page_opcode[] =
93 {0x0010, 0xFFF8}, /* page */
97 #define IS_PAGE_OPCODE(code) \
98 ip2k_is_opcode (code, ip2k_page_opcode)
100 static const struct ip2k_opcode ip2k_jmp_opcode[] =
102 {0xE000, 0xE000}, /* jmp */
106 #define IS_JMP_OPCODE(code) \
107 ip2k_is_opcode (code, ip2k_jmp_opcode)
109 static const struct ip2k_opcode ip2k_call_opcode[] =
111 {0xC000, 0xE000}, /* call */
115 #define IS_CALL_OPCODE(code) \
116 ip2k_is_opcode (code, ip2k_call_opcode)
118 static const struct ip2k_opcode ip2k_snc_opcode[] =
120 {0xA00B, 0xFFFF}, /* snc */
124 #define IS_SNC_OPCODE(code) \
125 ip2k_is_opcode (code, ip2k_snc_opcode)
127 static const struct ip2k_opcode ip2k_inc_1sp_opcode[] =
129 {0x2B81, 0xFFFF}, /* inc 1(SP) */
133 #define IS_INC_1SP_OPCODE(code) \
134 ip2k_is_opcode (code, ip2k_inc_1sp_opcode)
136 static const struct ip2k_opcode ip2k_add_2sp_w_opcode[] =
138 {0x1F82, 0xFFFF}, /* add 2(SP),w */
142 #define IS_ADD_2SP_W_OPCODE(code) \
143 ip2k_is_opcode (code, ip2k_add_2sp_w_opcode)
145 static const struct ip2k_opcode ip2k_add_w_wreg_opcode[] =
147 {0x1C0A, 0xFFFF}, /* add w,wreg */
148 {0x1E0A, 0xFFFF}, /* add wreg,w */
152 #define IS_ADD_W_WREG_OPCODE(code) \
153 ip2k_is_opcode (code, ip2k_add_w_wreg_opcode)
155 static const struct ip2k_opcode ip2k_add_pcl_w_opcode[] =
157 {0x1E09, 0xFFFF}, /* add pcl,w */
161 #define IS_ADD_PCL_W_OPCODE(code) \
162 ip2k_is_opcode (code, ip2k_add_pcl_w_opcode)
164 static const struct ip2k_opcode ip2k_skip_opcodes[] =
166 {0xB000, 0xF000}, /* sb */
167 {0xA000, 0xF000}, /* snb */
168 {0x7600, 0xFE00}, /* cse/csne #lit */
169 {0x5800, 0xFC00}, /* incsnz */
170 {0x4C00, 0xFC00}, /* decsnz */
171 {0x4000, 0xFC00}, /* cse/csne */
172 {0x3C00, 0xFC00}, /* incsz */
173 {0x2C00, 0xFC00}, /* decsz */
177 #define IS_SKIP_OPCODE(code) \
178 ip2k_is_opcode (code, ip2k_skip_opcodes)
180 /* Relocation tables. */
181 static reloc_howto_type ip2k_elf_howto_table [] =
183 #define IP2K_HOWTO(t,rs,s,bs,pr,bp,name,sm,dm) \
184 HOWTO(t, /* type */ \
185 rs, /* rightshift */ \
186 s, /* size (0 = byte, 1 = short, 2 = long) */ \
188 pr, /* pc_relative */ \
190 complain_overflow_dont,/* complain_on_overflow */ \
191 bfd_elf_generic_reloc,/* special_function */ \
193 FALSE, /* partial_inplace */ \
196 pr) /* pcrel_offset */
198 /* This reloc does nothing. */
199 IP2K_HOWTO (R_IP2K_NONE, 0,2,32, FALSE, 0, "R_IP2K_NONE", 0, 0),
200 /* A 16 bit absolute relocation. */
201 IP2K_HOWTO (R_IP2K_16, 0,1,16, FALSE, 0, "R_IP2K_16", 0, 0xffff),
202 /* A 32 bit absolute relocation. */
203 IP2K_HOWTO (R_IP2K_32, 0,2,32, FALSE, 0, "R_IP2K_32", 0, 0xffffffff),
204 /* A 8-bit data relocation for the FR9 field. Ninth bit is computed specially. */
205 IP2K_HOWTO (R_IP2K_FR9, 0,1,9, FALSE, 0, "R_IP2K_FR9", 0, 0x00ff),
206 /* A 4-bit data relocation. */
207 IP2K_HOWTO (R_IP2K_BANK, 8,1,4, FALSE, 0, "R_IP2K_BANK", 0, 0x000f),
208 /* A 13-bit insn relocation - word address => right-shift 1 bit extra. */
209 IP2K_HOWTO (R_IP2K_ADDR16CJP, 1,1,13, FALSE, 0, "R_IP2K_ADDR16CJP", 0, 0x1fff),
210 /* A 3-bit insn relocation - word address => right-shift 1 bit extra. */
211 IP2K_HOWTO (R_IP2K_PAGE3, 14,1,3, FALSE, 0, "R_IP2K_PAGE3", 0, 0x0007),
212 /* Two 8-bit data relocations. */
213 IP2K_HOWTO (R_IP2K_LO8DATA, 0,1,8, FALSE, 0, "R_IP2K_LO8DATA", 0, 0x00ff),
214 IP2K_HOWTO (R_IP2K_HI8DATA, 8,1,8, FALSE, 0, "R_IP2K_HI8DATA", 0, 0x00ff),
215 /* Two 8-bit insn relocations. word address => right-shift 1 bit extra. */
216 IP2K_HOWTO (R_IP2K_LO8INSN, 1,1,8, FALSE, 0, "R_IP2K_LO8INSN", 0, 0x00ff),
217 IP2K_HOWTO (R_IP2K_HI8INSN, 9,1,8, FALSE, 0, "R_IP2K_HI8INSN", 0, 0x00ff),
219 /* Special 1 bit relocation for SKIP instructions. */
220 IP2K_HOWTO (R_IP2K_PC_SKIP, 1,1,1, FALSE, 12, "R_IP2K_PC_SKIP", 0xfffe, 0x1000),
221 /* 16 bit word address. */
222 IP2K_HOWTO (R_IP2K_TEXT, 1,1,16, FALSE, 0, "R_IP2K_TEXT", 0, 0xffff),
223 /* A 7-bit offset relocation for the FR9 field. Eigth and ninth bit comes from insn. */
224 IP2K_HOWTO (R_IP2K_FR_OFFSET, 0,1,9, FALSE, 0, "R_IP2K_FR_OFFSET", 0x180, 0x007f),
225 /* Bits 23:16 of an address. */
226 IP2K_HOWTO (R_IP2K_EX8DATA, 16,1,8, FALSE, 0, "R_IP2K_EX8DATA", 0, 0x00ff),
230 /* Map BFD reloc types to IP2K ELF reloc types. */
231 static reloc_howto_type *
232 ip2k_reloc_type_lookup (abfd, code)
233 bfd * abfd ATTRIBUTE_UNUSED;
234 bfd_reloc_code_real_type code;
236 /* Note that the ip2k_elf_howto_table is indxed by the R_
237 constants. Thus, the order that the howto records appear in the
238 table *must* match the order of the relocation types defined in
239 include/elf/ip2k.h. */
244 return &ip2k_elf_howto_table[ (int) R_IP2K_NONE];
246 return &ip2k_elf_howto_table[ (int) R_IP2K_16];
248 return &ip2k_elf_howto_table[ (int) R_IP2K_32];
249 case BFD_RELOC_IP2K_FR9:
250 return &ip2k_elf_howto_table[ (int) R_IP2K_FR9];
251 case BFD_RELOC_IP2K_BANK:
252 return &ip2k_elf_howto_table[ (int) R_IP2K_BANK];
253 case BFD_RELOC_IP2K_ADDR16CJP:
254 return &ip2k_elf_howto_table[ (int) R_IP2K_ADDR16CJP];
255 case BFD_RELOC_IP2K_PAGE3:
256 return &ip2k_elf_howto_table[ (int) R_IP2K_PAGE3];
257 case BFD_RELOC_IP2K_LO8DATA:
258 return &ip2k_elf_howto_table[ (int) R_IP2K_LO8DATA];
259 case BFD_RELOC_IP2K_HI8DATA:
260 return &ip2k_elf_howto_table[ (int) R_IP2K_HI8DATA];
261 case BFD_RELOC_IP2K_LO8INSN:
262 return &ip2k_elf_howto_table[ (int) R_IP2K_LO8INSN];
263 case BFD_RELOC_IP2K_HI8INSN:
264 return &ip2k_elf_howto_table[ (int) R_IP2K_HI8INSN];
265 case BFD_RELOC_IP2K_PC_SKIP:
266 return &ip2k_elf_howto_table[ (int) R_IP2K_PC_SKIP];
267 case BFD_RELOC_IP2K_TEXT:
268 return &ip2k_elf_howto_table[ (int) R_IP2K_TEXT];
269 case BFD_RELOC_IP2K_FR_OFFSET:
270 return &ip2k_elf_howto_table[ (int) R_IP2K_FR_OFFSET];
271 case BFD_RELOC_IP2K_EX8DATA:
272 return &ip2k_elf_howto_table[ (int) R_IP2K_EX8DATA];
274 /* Pacify gcc -Wall. */
281 ip2k_get_mem (abfd, addr, length, ptr)
282 bfd *abfd ATTRIBUTE_UNUSED;
288 * ptr ++ = bfd_get_8 (abfd, addr ++);
292 ip2k_is_opcode (code, opcodes)
294 const struct ip2k_opcode *opcodes;
296 unsigned short insn = (code[0] << 8) | code[1];
298 while (opcodes->mask != 0)
300 if ((insn & opcodes->mask) == opcodes->opcode)
309 #define PAGENO(ABSADDR) ((ABSADDR) & 0xFFFFC000)
310 #define BASEADDR(SEC) ((SEC)->output_section->vma + (SEC)->output_offset)
312 #define UNDEFINED_SYMBOL (~(bfd_vma)0)
314 /* Return the value of the symbol associated with the relocation IREL. */
317 symbol_value (abfd, symtab_hdr, isymbuf, irel)
319 Elf_Internal_Shdr *symtab_hdr;
320 Elf_Internal_Sym *isymbuf;
321 Elf_Internal_Rela *irel;
323 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
325 Elf_Internal_Sym *isym;
328 isym = isymbuf + ELF32_R_SYM (irel->r_info);
329 if (isym->st_shndx == SHN_UNDEF)
330 sym_sec = bfd_und_section_ptr;
331 else if (isym->st_shndx == SHN_ABS)
332 sym_sec = bfd_abs_section_ptr;
333 else if (isym->st_shndx == SHN_COMMON)
334 sym_sec = bfd_com_section_ptr;
336 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
338 return isym->st_value + BASEADDR (sym_sec);
343 struct elf_link_hash_entry *h;
345 indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info;
346 h = elf_sym_hashes (abfd)[indx];
347 BFD_ASSERT (h != NULL);
349 if (h->root.type != bfd_link_hash_defined
350 && h->root.type != bfd_link_hash_defweak)
351 return UNDEFINED_SYMBOL;
353 return (h->root.u.def.value + BASEADDR (h->root.u.def.section));
357 /* Returns the expected page state for the given instruction not including
358 the effect of page instructions. */
361 ip2k_nominal_page_bits (abfd, sec, addr, contents)
362 bfd *abfd ATTRIBUTE_UNUSED;
367 bfd_vma page = PAGENO (BASEADDR (sec) + addr);
369 /* Check if section flows into this page. If not then the page
370 bits are assumed to match the PC. This will be true unless
371 the user has a page instruction without a call/jump, in which
372 case they are on their own. */
373 if (PAGENO (BASEADDR (sec)) == page)
376 /* Section flows across page boundary. The page bits should match
377 the PC unless there is a possible flow from the previous page,
378 in which case it is not possible to determine the value of the
380 while (PAGENO (BASEADDR (sec) + addr - 2) == page)
385 ip2k_get_mem (abfd, contents + addr, 2, code);
386 if (!IS_PAGE_OPCODE (code))
389 /* Found a page instruction, check if jump table. */
390 if (ip2k_is_switch_table_128 (abfd, sec, addr, contents) != -1)
391 /* Jump table => page is conditional. */
394 if (ip2k_is_switch_table_256 (abfd, sec, addr, contents) != -1)
395 /* Jump table => page is conditional. */
398 /* Found a page instruction, check if conditional. */
401 ip2k_get_mem (abfd, contents + addr - 2, 2, code);
402 if (IS_SKIP_OPCODE (code))
403 /* Page is conditional. */
407 /* Unconditional page instruction => page bits should be correct. */
411 /* Flow from previous page => page bits are impossible to determine. */
416 ip2k_test_page_insn (abfd, sec, irel, misc)
417 bfd *abfd ATTRIBUTE_UNUSED;
419 Elf_Internal_Rela *irel;
424 /* Get the value of the symbol referred to by the reloc. */
425 symval = symbol_value (abfd, misc->symtab_hdr, misc->isymbuf, irel);
426 if (symval == UNDEFINED_SYMBOL)
427 /* This appears to be a reference to an undefined
428 symbol. Just ignore it--it will be caught by the
429 regular reloc processing. */
432 /* Test if we can delete this page instruction. */
433 if (PAGENO (symval + irel->r_addend) !=
434 ip2k_nominal_page_bits (abfd, sec, irel->r_offset, misc->contents))
441 ip2k_delete_page_insn (abfd, sec, irel, again, misc)
442 bfd *abfd ATTRIBUTE_UNUSED;
444 Elf_Internal_Rela *irel;
448 /* Note that we've changed the relocs, section contents, etc. */
449 elf_section_data (sec)->relocs = misc->irelbase;
450 elf_section_data (sec)->this_hdr.contents = misc->contents;
451 misc->symtab_hdr->contents = (bfd_byte *) misc->isymbuf;
453 /* Fix the relocation's type. */
454 irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), R_IP2K_NONE);
456 /* Delete the PAGE insn. */
457 if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset, 2))
460 /* Modified => will need to iterate relaxation again. */
466 /* Determine if the instruction sequence matches that for
467 the prologue of a switch dispatch table with fewer than
496 ip2k_is_switch_table_128 (abfd, sec, addr, contents)
497 bfd *abfd ATTRIBUTE_UNUSED;
505 /* Check current page-jmp. */
506 if (addr + 4 > sec->size)
509 ip2k_get_mem (abfd, contents + addr, 4, code);
511 if ((! IS_PAGE_OPCODE (code + 0))
512 || (! IS_JMP_OPCODE (code + 2)))
521 /* Check previous 2 instructions. */
522 ip2k_get_mem (abfd, contents + addr - 4, 4, code);
523 if ((IS_ADD_W_WREG_OPCODE (code + 0))
524 && (IS_ADD_PCL_W_OPCODE (code + 2)))
527 if ((! IS_PAGE_OPCODE (code + 0))
528 || (! IS_JMP_OPCODE (code + 2)))
537 ip2k_relax_switch_table_128 (abfd, sec, irel, again, misc)
538 bfd *abfd ATTRIBUTE_UNUSED;
540 Elf_Internal_Rela *irel;
544 Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
545 Elf_Internal_Rela *ireltest = irel;
549 /* Test all page instructions. */
550 addr = irel->r_offset;
553 if (addr + 4 > sec->size)
556 ip2k_get_mem (abfd, misc->contents + addr, 4, code);
557 if ((! IS_PAGE_OPCODE (code + 0))
558 || (! IS_JMP_OPCODE (code + 2)))
561 /* Validate relocation entry (every entry should have a matching
562 relocation entry). */
563 if (ireltest >= irelend)
565 _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
569 if (ireltest->r_offset != addr)
571 _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
575 if (! ip2k_test_page_insn (abfd, sec, ireltest, misc))
576 /* Un-removable page insn => nothing can be done. */
583 /* Relaxable. Adjust table header. */
584 ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 4, code);
585 if ((! IS_ADD_W_WREG_OPCODE (code + 0))
586 || (! IS_ADD_PCL_W_OPCODE (code + 2)))
588 _bfd_error_handler (_("ip2k relaxer: switch table header corrupt."));
592 if (!ip2k_elf_relax_delete_bytes (abfd, sec, irel->r_offset - 4, 2))
597 /* Delete all page instructions in table. */
598 while (irel < ireltest)
600 if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
608 /* Determine if the instruction sequence matches that for
609 the prologue switch dispatch table with fewer than
610 256 entries but more than 127.
613 push %lo8insn(label) ; Push address of table
615 add w,wreg ; index*2 => offset
617 inc 1(sp) ; Propagate MSB into table address
618 add 2(sp),w ; Add low bits of offset to table address
619 snc ; and handle any carry-out
622 page __indjmp ; Do an indirect jump to that location
624 label: ; case dispatch table starts here
634 push %lo8insn(label) ; Push address of table
636 add 2(sp),w ; Add low bits of offset to table address
637 snc ; and handle any carry-out
640 page __indjmp ; Do an indirect jump to that location
642 label: ; case dispatch table starts here
649 ip2k_is_switch_table_256 (abfd, sec, addr, contents)
650 bfd *abfd ATTRIBUTE_UNUSED;
658 /* Check current page-jmp. */
659 if (addr + 4 > sec->size)
662 ip2k_get_mem (abfd, contents + addr, 4, code);
663 if ((! IS_PAGE_OPCODE (code + 0))
664 || (! IS_JMP_OPCODE (code + 2)))
673 /* Check previous 8 instructions. */
674 ip2k_get_mem (abfd, contents + addr - 16, 16, code);
675 if ((IS_ADD_W_WREG_OPCODE (code + 0))
676 && (IS_SNC_OPCODE (code + 2))
677 && (IS_INC_1SP_OPCODE (code + 4))
678 && (IS_ADD_2SP_W_OPCODE (code + 6))
679 && (IS_SNC_OPCODE (code + 8))
680 && (IS_INC_1SP_OPCODE (code + 10))
681 && (IS_PAGE_OPCODE (code + 12))
682 && (IS_JMP_OPCODE (code + 14)))
685 if ((IS_ADD_W_WREG_OPCODE (code + 2))
686 && (IS_SNC_OPCODE (code + 4))
687 && (IS_INC_1SP_OPCODE (code + 6))
688 && (IS_ADD_2SP_W_OPCODE (code + 8))
689 && (IS_SNC_OPCODE (code + 10))
690 && (IS_INC_1SP_OPCODE (code + 12))
691 && (IS_JMP_OPCODE (code + 14)))
694 if ((! IS_PAGE_OPCODE (code + 0))
695 || (! IS_JMP_OPCODE (code + 2)))
704 ip2k_relax_switch_table_256 (abfd, sec, irel, again, misc)
705 bfd *abfd ATTRIBUTE_UNUSED;
707 Elf_Internal_Rela *irel;
711 Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
712 Elf_Internal_Rela *ireltest = irel;
716 /* Test all page instructions. */
717 addr = irel->r_offset;
721 if (addr + 4 > sec->size)
724 ip2k_get_mem (abfd, misc->contents + addr, 4, code);
726 if ((! IS_PAGE_OPCODE (code + 0))
727 || (! IS_JMP_OPCODE (code + 2)))
730 /* Validate relocation entry (every entry should have a matching
731 relocation entry). */
732 if (ireltest >= irelend)
734 _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
738 if (ireltest->r_offset != addr)
740 _bfd_error_handler (_("ip2k relaxer: switch table without complete matching relocation information."));
744 if (!ip2k_test_page_insn (abfd, sec, ireltest, misc))
745 /* Un-removable page insn => nothing can be done. */
752 /* Relaxable. Adjust table header. */
753 ip2k_get_mem (abfd, misc->contents + irel->r_offset - 4, 2, code);
754 if (IS_PAGE_OPCODE (code))
755 addr = irel->r_offset - 16;
757 addr = irel->r_offset - 14;
759 ip2k_get_mem (abfd, misc->contents + addr, 12, code);
760 if ((!IS_ADD_W_WREG_OPCODE (code + 0))
761 || (!IS_SNC_OPCODE (code + 2))
762 || (!IS_INC_1SP_OPCODE (code + 4))
763 || (!IS_ADD_2SP_W_OPCODE (code + 6))
764 || (!IS_SNC_OPCODE (code + 8))
765 || (!IS_INC_1SP_OPCODE (code + 10)))
767 _bfd_error_handler (_("ip2k relaxer: switch table header corrupt."));
771 /* Delete first 3 opcodes. */
772 if (!ip2k_elf_relax_delete_bytes (abfd, sec, addr + 0, 6))
777 /* Delete all page instructions in table. */
778 while (irel < ireltest)
780 if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
788 /* This function handles relaxing for the ip2k.
790 Principle: Start with the first page and remove page instructions that
791 are not require on this first page. By removing page instructions more
792 code will fit into this page - repeat until nothing more can be achieved
793 for this page. Move on to the next page.
795 Processing the pages one at a time from the lowest page allows a removal
796 only policy to be used - pages can be removed but are never reinserted. */
799 ip2k_elf_relax_section (abfd, sec, link_info, again)
802 struct bfd_link_info *link_info;
805 Elf_Internal_Shdr *symtab_hdr;
806 Elf_Internal_Rela *internal_relocs;
807 bfd_byte *contents = NULL;
808 Elf_Internal_Sym *isymbuf = NULL;
809 static asection * first_section = NULL;
810 static unsigned long search_addr;
811 static unsigned long page_start = 0;
812 static unsigned long page_end = 0;
813 static unsigned int pass = 0;
814 static bfd_boolean new_pass = FALSE;
815 static bfd_boolean changed = FALSE;
819 /* Assume nothing changes. */
822 if (first_section == NULL)
828 if (first_section == sec)
834 /* We don't have to do anything for a relocatable link,
835 if this section does not have relocs, or if this is
836 not a code section. */
837 if (link_info->relocatable
838 || (sec->flags & SEC_RELOC) == 0
839 || sec->reloc_count == 0
840 || (sec->flags & SEC_CODE) == 0)
843 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
845 internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL,
846 (Elf_Internal_Rela *)NULL,
847 link_info->keep_memory);
848 if (internal_relocs == NULL)
851 /* Make sure the stac.rela stuff gets read in. */
852 stab = bfd_get_section_by_name (abfd, ".stab");
856 /* So stab does exits. */
857 Elf_Internal_Rela * irelbase;
859 irelbase = _bfd_elf_link_read_relocs (abfd, stab, NULL,
860 (Elf_Internal_Rela *)NULL,
861 link_info->keep_memory);
864 /* Get section contents cached copy if it exists. */
865 if (contents == NULL)
867 /* Get cached copy if it exists. */
868 if (elf_section_data (sec)->this_hdr.contents != NULL)
869 contents = elf_section_data (sec)->this_hdr.contents;
872 /* Go get them off disk. */
873 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
878 /* Read this BFD's symbols cached copy if it exists. */
879 if (isymbuf == NULL && symtab_hdr->sh_info != 0)
881 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
883 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
884 symtab_hdr->sh_info, 0,
890 misc.symtab_hdr = symtab_hdr;
891 misc.isymbuf = isymbuf;
892 misc.irelbase = internal_relocs;
893 misc.contents = contents;
895 /* This is where all the relaxation actually get done. */
896 if ((pass == 1) || (new_pass && !changed))
898 /* On the first pass we simply search for the lowest page that
899 we havn't relaxed yet. Note that the pass count is reset
900 each time a page is complete in order to move on to the next page.
901 If we can't find any more pages then we are finished. */
906 changed = TRUE; /* Pre-initialize to break out of pass 1. */
907 search_addr = 0xFFFFFFFF;
910 if ((BASEADDR (sec) + sec->size < search_addr)
911 && (BASEADDR (sec) + sec->size > page_end))
913 if (BASEADDR (sec) <= page_end)
914 search_addr = page_end + 1;
916 search_addr = BASEADDR (sec);
918 /* Found a page => more work to do. */
928 page_start = PAGENO (search_addr);
929 page_end = page_start | 0x00003FFF;
932 /* Only process sections in range. */
933 if ((BASEADDR (sec) + sec->size >= page_start)
934 && (BASEADDR (sec) <= page_end))
936 if (!ip2k_elf_relax_section_page (abfd, sec, &changed, &misc, page_start, page_end))
942 /* Perform some house keeping after relaxing the section. */
945 && symtab_hdr->contents != (unsigned char *) isymbuf)
947 if (! link_info->keep_memory)
950 symtab_hdr->contents = (unsigned char *) isymbuf;
954 && elf_section_data (sec)->this_hdr.contents != contents)
956 if (! link_info->keep_memory)
960 /* Cache the section contents for elf_link_input_bfd. */
961 elf_section_data (sec)->this_hdr.contents = contents;
965 if (internal_relocs != NULL
966 && elf_section_data (sec)->relocs != internal_relocs)
967 free (internal_relocs);
973 && symtab_hdr->contents != (unsigned char *) isymbuf)
976 && elf_section_data (sec)->this_hdr.contents != contents)
978 if (internal_relocs != NULL
979 && elf_section_data (sec)->relocs != internal_relocs)
980 free (internal_relocs);
984 /* This function handles relaxation of a section in a specific page. */
987 ip2k_elf_relax_section_page (abfd, sec, again, misc, page_start, page_end)
992 unsigned long page_start;
993 unsigned long page_end;
995 Elf_Internal_Rela *irelend = misc->irelbase + sec->reloc_count;
996 Elf_Internal_Rela *irel;
997 int switch_table_128;
998 int switch_table_256;
1000 /* Walk thru the section looking for relaxation opportunities. */
1001 for (irel = misc->irelbase; irel < irelend; irel++)
1003 if (ELF32_R_TYPE (irel->r_info) != (int) R_IP2K_PAGE3)
1004 /* Ignore non page instructions. */
1007 if (BASEADDR (sec) + irel->r_offset < page_start)
1008 /* Ignore page instructions on earlier page - they have
1009 already been processed. Remember that there is code flow
1010 that crosses a page boundary. */
1013 if (BASEADDR (sec) + irel->r_offset > page_end)
1014 /* Flow beyond end of page => nothing more to do for this page. */
1017 /* Detect switch tables. */
1018 switch_table_128 = ip2k_is_switch_table_128 (abfd, sec, irel->r_offset, misc->contents);
1019 switch_table_256 = ip2k_is_switch_table_256 (abfd, sec, irel->r_offset, misc->contents);
1021 if ((switch_table_128 > 0) || (switch_table_256 > 0))
1022 /* If the index is greater than 0 then it has already been processed. */
1025 if (switch_table_128 == 0)
1027 if (!ip2k_relax_switch_table_128 (abfd, sec, irel, again, misc))
1033 if (switch_table_256 == 0)
1035 if (!ip2k_relax_switch_table_256 (abfd, sec, irel, again, misc))
1042 if (ip2k_test_page_insn (abfd, sec, irel, misc))
1044 if (!ip2k_delete_page_insn (abfd, sec, irel, again, misc))
1054 /* Parts of a Stabs entry. */
1056 #define STRDXOFF (0)
1058 #define OTHEROFF (5)
1061 #define STABSIZE (12)
1063 /* Adjust all the relocations entries after adding or inserting instructions. */
1066 adjust_all_relocations (abfd, sec, addr, endaddr, count, noadj)
1074 Elf_Internal_Shdr *symtab_hdr;
1075 Elf_Internal_Sym *isymbuf, *isym, *isymend;
1078 Elf_Internal_Rela *irel, *irelend, *irelbase;
1079 struct elf_link_hash_entry **sym_hashes;
1080 struct elf_link_hash_entry **end_hashes;
1081 unsigned int symcount;
1084 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1085 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
1087 shndx = _bfd_elf_section_from_bfd_section (abfd, sec);
1089 contents = elf_section_data (sec)->this_hdr.contents;
1091 irelbase = elf_section_data (sec)->relocs;
1092 irelend = irelbase + sec->reloc_count;
1094 for (irel = irelbase; irel < irelend; irel++)
1096 if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE)
1098 /* Get the value of the symbol referred to by the reloc. */
1099 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
1103 /* A local symbol. */
1104 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1105 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1107 if (isym->st_shndx == shndx)
1109 bfd_vma baseaddr = BASEADDR (sec);
1110 bfd_vma symval = BASEADDR (sym_sec) + isym->st_value
1113 if ((baseaddr + addr + noadj) <= symval
1114 && symval < (baseaddr + endaddr))
1115 irel->r_addend += count;
1120 /* Do this only for PC space relocations. */
1121 if (addr <= irel->r_offset && irel->r_offset < endaddr)
1122 irel->r_offset += count;
1125 /* Now fix the stab relocations. */
1126 stab = bfd_get_section_by_name (abfd, ".stab");
1129 bfd_byte *stabcontents, *stabend, *stabp;
1130 bfd_size_type stab_size = stab->rawsize ? stab->rawsize : stab->size;
1132 irelbase = elf_section_data (stab)->relocs;
1133 irelend = irelbase + stab->reloc_count;
1135 /* Pull out the contents of the stab section. */
1136 if (elf_section_data (stab)->this_hdr.contents != NULL)
1137 stabcontents = elf_section_data (stab)->this_hdr.contents;
1140 if (!bfd_malloc_and_get_section (abfd, stab, &stabcontents))
1142 if (stabcontents != NULL)
1143 free (stabcontents);
1147 /* We need to remember this. */
1148 elf_section_data (stab)->this_hdr.contents = stabcontents;
1151 stabend = stabcontents + stab_size;
1153 for (irel = irelbase; irel < irelend; irel++)
1155 if (ELF32_R_TYPE (irel->r_info) != R_IP2K_NONE)
1157 /* Get the value of the symbol referred to by the reloc. */
1158 if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info)
1162 /* A local symbol. */
1163 isym = isymbuf + ELF32_R_SYM (irel->r_info);
1164 sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1170 unsigned char type, other;
1171 unsigned short desc;
1173 bfd_vma baseaddr = BASEADDR (sec);
1174 bfd_vma symval = BASEADDR (sym_sec) + isym->st_value
1177 if ((baseaddr + addr) <= symval
1178 && symval <= (baseaddr + endaddr))
1179 irel->r_addend += count;
1181 /* Go hunt up a function and fix its line info if needed. */
1182 stabp = stabcontents + irel->r_offset - 8;
1184 /* Go pullout the stab entry. */
1185 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
1186 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
1187 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
1188 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
1189 value = bfd_h_get_32 (abfd, stabp + VALOFF);
1191 name = bfd_get_stab_name (type);
1193 if (strcmp (name, "FUN") == 0)
1195 int function_adjusted = 0;
1197 if (symval > (baseaddr + addr))
1198 /* Not in this function. */
1201 /* Hey we got a function hit. */
1203 for (;stabp < stabend; stabp += STABSIZE)
1205 /* Go pullout the stab entry. */
1206 strx = bfd_h_get_32 (abfd, stabp + STRDXOFF);
1207 type = bfd_h_get_8 (abfd, stabp + TYPEOFF);
1208 other = bfd_h_get_8 (abfd, stabp + OTHEROFF);
1209 desc = bfd_h_get_16 (abfd, stabp + DESCOFF);
1210 value = bfd_h_get_32 (abfd, stabp + VALOFF);
1212 name = bfd_get_stab_name (type);
1214 if (strcmp (name, "FUN") == 0)
1216 /* Hit another function entry. */
1217 if (function_adjusted)
1219 /* Adjust the value. */
1222 /* We need to put it back. */
1223 bfd_h_put_32 (abfd, value,stabp + VALOFF);
1226 /* And then bale out. */
1230 if (strcmp (name, "SLINE") == 0)
1232 /* Got a line entry. */
1233 if ((baseaddr + addr) <= (symval + value))
1235 /* Adjust the line entry. */
1238 /* We need to put it back. */
1239 bfd_h_put_32 (abfd, value,stabp + VALOFF);
1240 function_adjusted = 1;
1251 /* When adding an instruction back it is sometimes necessary to move any
1252 global or local symbol that was referencing the first instruction of
1253 the moved block to refer to the first instruction of the inserted block.
1255 For example adding a PAGE instruction before a CALL or JMP requires
1256 that any label on the CALL or JMP is moved to the PAGE insn. */
1259 /* Adjust the local symbols defined in this section. */
1260 isymend = isymbuf + symtab_hdr->sh_info;
1261 for (isym = isymbuf; isym < isymend; isym++)
1263 if (isym->st_shndx == shndx
1264 && addr <= isym->st_value
1265 && isym->st_value < endaddr)
1266 isym->st_value += count;
1269 /* Now adjust the global symbols defined in this section. */
1270 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
1271 - symtab_hdr->sh_info);
1272 sym_hashes = elf_sym_hashes (abfd);
1273 end_hashes = sym_hashes + symcount;
1274 for (; sym_hashes < end_hashes; sym_hashes++)
1276 struct elf_link_hash_entry *sym_hash = *sym_hashes;
1278 if ((sym_hash->root.type == bfd_link_hash_defined
1279 || sym_hash->root.type == bfd_link_hash_defweak)
1280 && sym_hash->root.u.def.section == sec)
1282 if (addr <= sym_hash->root.u.def.value
1283 && sym_hash->root.u.def.value < endaddr)
1284 sym_hash->root.u.def.value += count;
1291 /* Delete some bytes from a section while relaxing. */
1294 ip2k_elf_relax_delete_bytes (abfd, sec, addr, count)
1300 bfd_byte *contents = elf_section_data (sec)->this_hdr.contents;
1301 bfd_vma endaddr = sec->size;
1303 /* Actually delete the bytes. */
1304 memmove (contents + addr, contents + addr + count,
1305 endaddr - addr - count);
1309 adjust_all_relocations (abfd, sec, addr + count, endaddr, -count, 0);
1313 /* -------------------------------------------------------------------- */
1315 /* XXX: The following code is the result of a cut&paste. This unfortunate
1316 practice is very widespread in the various target back-end files. */
1318 /* Set the howto pointer for a IP2K ELF reloc. */
1321 ip2k_info_to_howto_rela (abfd, cache_ptr, dst)
1322 bfd * abfd ATTRIBUTE_UNUSED;
1323 arelent * cache_ptr;
1324 Elf_Internal_Rela * dst;
1326 unsigned int r_type;
1328 r_type = ELF32_R_TYPE (dst->r_info);
1332 cache_ptr->howto = & ip2k_elf_howto_table [r_type];
1337 /* Perform a single relocation.
1338 By default we use the standard BFD routines. */
1340 static bfd_reloc_status_type
1341 ip2k_final_link_relocate (howto, input_bfd, input_section, contents, rel,
1343 reloc_howto_type * howto;
1345 asection * input_section;
1346 bfd_byte * contents;
1347 Elf_Internal_Rela * rel;
1350 static bfd_vma page_addr = 0;
1352 bfd_reloc_status_type r = bfd_reloc_ok;
1353 switch (howto->type)
1355 /* Handle data space relocations. */
1358 if ((relocation & IP2K_DATA_MASK) == IP2K_DATA_VALUE)
1359 relocation &= ~IP2K_DATA_MASK;
1361 r = bfd_reloc_notsupported;
1364 case R_IP2K_LO8DATA:
1365 case R_IP2K_HI8DATA:
1366 case R_IP2K_EX8DATA:
1369 /* Handle insn space relocations. */
1371 page_addr = BASEADDR (input_section) + rel->r_offset;
1372 if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
1373 relocation &= ~IP2K_INSN_MASK;
1375 r = bfd_reloc_notsupported;
1378 case R_IP2K_ADDR16CJP:
1379 if (BASEADDR (input_section) + rel->r_offset != page_addr + 2)
1381 /* No preceding page instruction, verify that it isn't needed. */
1382 if (PAGENO (relocation + rel->r_addend) !=
1383 ip2k_nominal_page_bits (input_bfd, input_section,
1384 rel->r_offset, contents))
1385 _bfd_error_handler (_("ip2k linker: missing page instruction at 0x%08lx (dest = 0x%08lx)."),
1386 BASEADDR (input_section) + rel->r_offset,
1387 relocation + rel->r_addend);
1389 else if (ip2k_relaxed)
1391 /* Preceding page instruction. Verify that the page instruction is
1392 really needed. One reason for the relaxation to miss a page is if
1393 the section is not marked as executable. */
1394 if (!ip2k_is_switch_table_128 (input_bfd, input_section, rel->r_offset - 2, contents) &&
1395 !ip2k_is_switch_table_256 (input_bfd, input_section, rel->r_offset - 2, contents) &&
1396 (PAGENO (relocation + rel->r_addend) ==
1397 ip2k_nominal_page_bits (input_bfd, input_section,
1398 rel->r_offset - 2, contents)))
1399 _bfd_error_handler (_("ip2k linker: redundant page instruction at 0x%08lx (dest = 0x%08lx)."),
1401 relocation + rel->r_addend);
1403 if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
1404 relocation &= ~IP2K_INSN_MASK;
1406 r = bfd_reloc_notsupported;
1409 case R_IP2K_LO8INSN:
1410 case R_IP2K_HI8INSN:
1411 case R_IP2K_PC_SKIP:
1412 if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
1413 relocation &= ~IP2K_INSN_MASK;
1415 r = bfd_reloc_notsupported;
1419 /* If this is a relocation involving a TEXT
1420 symbol, reduce it to a word address. */
1421 if ((relocation & IP2K_INSN_MASK) == IP2K_INSN_VALUE)
1422 howto = &ip2k_elf_howto_table[ (int) R_IP2K_TEXT];
1425 /* Pass others through. */
1430 /* Only install relocation if above tests did not disqualify it. */
1431 if (r == bfd_reloc_ok)
1432 r = _bfd_final_link_relocate (howto, input_bfd, input_section,
1433 contents, rel->r_offset,
1434 relocation, rel->r_addend);
1439 /* Relocate a IP2K ELF section.
1441 The RELOCATE_SECTION function is called by the new ELF backend linker
1442 to handle the relocations for a section.
1444 The relocs are always passed as Rela structures; if the section
1445 actually uses Rel structures, the r_addend field will always be
1448 This function is responsible for adjusting the section contents as
1449 necessary, and (if using Rela relocs and generating a relocatable
1450 output file) adjusting the reloc addend as necessary.
1452 This function does not have to worry about setting the reloc
1453 address or the reloc symbol index.
1455 LOCAL_SYMS is a pointer to the swapped in local symbols.
1457 LOCAL_SECTIONS is an array giving the section in the input file
1458 corresponding to the st_shndx field of each local symbol.
1460 The global hash table entry for the global symbols can be found
1461 via elf_sym_hashes (input_bfd).
1463 When generating relocatable output, this function must handle
1464 STB_LOCAL/STT_SECTION symbols specially. The output symbol is
1465 going to be the section symbol corresponding to the output
1466 section, which means that the addend must be adjusted
1470 ip2k_elf_relocate_section (output_bfd, info, input_bfd, input_section,
1471 contents, relocs, local_syms, local_sections)
1472 bfd *output_bfd ATTRIBUTE_UNUSED;
1473 struct bfd_link_info *info;
1475 asection *input_section;
1477 Elf_Internal_Rela *relocs;
1478 Elf_Internal_Sym *local_syms;
1479 asection **local_sections;
1481 Elf_Internal_Shdr *symtab_hdr;
1482 struct elf_link_hash_entry **sym_hashes;
1483 Elf_Internal_Rela *rel;
1484 Elf_Internal_Rela *relend;
1486 if (info->relocatable)
1489 symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr;
1490 sym_hashes = elf_sym_hashes (input_bfd);
1491 relend = relocs + input_section->reloc_count;
1493 for (rel = relocs; rel < relend; rel ++)
1495 reloc_howto_type * howto;
1496 unsigned long r_symndx;
1497 Elf_Internal_Sym * sym;
1499 struct elf_link_hash_entry * h;
1501 bfd_reloc_status_type r;
1502 const char * name = NULL;
1505 /* This is a final link. */
1506 r_type = ELF32_R_TYPE (rel->r_info);
1507 r_symndx = ELF32_R_SYM (rel->r_info);
1508 howto = ip2k_elf_howto_table + ELF32_R_TYPE (rel->r_info);
1513 if (r_symndx < symtab_hdr->sh_info)
1515 sym = local_syms + r_symndx;
1516 sec = local_sections [r_symndx];
1517 relocation = BASEADDR (sec) + sym->st_value;
1519 name = bfd_elf_string_from_elf_section
1520 (input_bfd, symtab_hdr->sh_link, sym->st_name);
1521 name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name;
1526 bfd_boolean unresolved_reloc;
1528 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
1529 r_symndx, symtab_hdr, sym_hashes,
1531 unresolved_reloc, warned);
1533 name = h->root.root.string;
1536 /* Finally, the sole IP2K-specific part. */
1537 r = ip2k_final_link_relocate (howto, input_bfd, input_section,
1538 contents, rel, relocation);
1540 if (r != bfd_reloc_ok)
1542 const char * msg = (const char *) NULL;
1546 case bfd_reloc_overflow:
1547 r = info->callbacks->reloc_overflow
1548 (info, name, howto->name, (bfd_vma) 0,
1549 input_bfd, input_section, rel->r_offset);
1552 case bfd_reloc_undefined:
1553 r = info->callbacks->undefined_symbol
1554 (info, name, input_bfd, input_section, rel->r_offset, TRUE);
1557 case bfd_reloc_outofrange:
1558 msg = _("internal error: out of range error");
1561 /* This is how ip2k_final_link_relocate tells us of a non-kosher
1562 reference between insn & data address spaces. */
1563 case bfd_reloc_notsupported:
1564 if (sym != NULL) /* Only if it's not an unresolved symbol. */
1565 msg = _("unsupported relocation between data/insn address spaces");
1568 case bfd_reloc_dangerous:
1569 msg = _("internal error: dangerous relocation");
1573 msg = _("internal error: unknown error");
1578 r = info->callbacks->warning
1579 (info, msg, name, input_bfd, input_section, rel->r_offset);
1590 ip2k_elf_gc_mark_hook (sec, info, rel, h, sym)
1592 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1593 Elf_Internal_Rela *rel;
1594 struct elf_link_hash_entry *h;
1595 Elf_Internal_Sym *sym;
1599 switch (ELF32_R_TYPE (rel->r_info))
1602 case R_IP2K_GNU_VTINHERIT:
1603 case R_IP2K_GNU_VTENTRY:
1608 switch (h->root.type)
1610 case bfd_link_hash_defined:
1611 case bfd_link_hash_defweak:
1612 return h->root.u.def.section;
1614 case bfd_link_hash_common:
1615 return h->root.u.c.p->section;
1624 if (!(elf_bad_symtab (sec->owner)
1625 && ELF_ST_BIND (sym->st_info) != STB_LOCAL)
1626 && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE)
1627 && sym->st_shndx != SHN_COMMON))
1628 return bfd_section_from_elf_index (sec->owner, sym->st_shndx);
1634 ip2k_elf_gc_sweep_hook (abfd, info, sec, relocs)
1635 bfd *abfd ATTRIBUTE_UNUSED;
1636 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1637 asection *sec ATTRIBUTE_UNUSED;
1638 const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED;
1640 /* We don't use got and plt entries for ip2k. */
1644 #define TARGET_BIG_SYM bfd_elf32_ip2k_vec
1645 #define TARGET_BIG_NAME "elf32-ip2k"
1647 #define ELF_ARCH bfd_arch_ip2k
1648 #define ELF_MACHINE_CODE EM_IP2K
1649 #define ELF_MACHINE_ALT1 EM_IP2K_OLD
1650 #define ELF_MAXPAGESIZE 1 /* No pages on the IP2K. */
1652 #define elf_info_to_howto_rel NULL
1653 #define elf_info_to_howto ip2k_info_to_howto_rela
1655 #define elf_backend_can_gc_sections 1
1656 #define elf_backend_rela_normal 1
1657 #define elf_backend_gc_mark_hook ip2k_elf_gc_mark_hook
1658 #define elf_backend_gc_sweep_hook ip2k_elf_gc_sweep_hook
1659 #define elf_backend_relocate_section ip2k_elf_relocate_section
1661 #define elf_symbol_leading_char '_'
1662 #define bfd_elf32_bfd_reloc_type_lookup ip2k_reloc_type_lookup
1663 #define bfd_elf32_bfd_relax_section ip2k_elf_relax_section
1665 #include "elf32-target.h"