X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-d10v.c;h=5c0dd95af82a587d03bcc72184b9a0ca7b05f3cb;hb=ec892a0718dc47c2d009532865c353daa749eaa1;hp=293b1419de7c6baf12c95153f8b30ec3d74515f9;hpb=01f0fe5e0450edf168c1f612feb93cf588e4e7ea;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-d10v.c b/bfd/elf32-d10v.c index 293b1419de..5c0dd95af8 100644 --- a/bfd/elf32-d10v.c +++ b/bfd/elf32-d10v.c @@ -1,13 +1,12 @@ /* D10V-specific support for 32-bit ELF - Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 - Free Software Foundation, Inc. + Copyright (C) 1996-2015 Free Software Foundation, Inc. Contributed by Martin Hunt (hunt@cygnus.com). This file is part of BFD, the Binary File Descriptor library. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or + the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, @@ -20,8 +19,8 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" #include "elf-bfd.h" #include "elf/d10v.h" @@ -34,8 +33,8 @@ static reloc_howto_type elf_d10v_howto_table[] = /* This reloc does nothing. */ HOWTO (R_D10V_NONE, /* Type. */ 0, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 32, /* Bitsize. */ + 3, /* Size (0 = byte, 1 = short, 2 = long). */ + 0, /* Bitsize. */ FALSE, /* PC_relative. */ 0, /* Bitpos. */ complain_overflow_dont,/* Complain_on_overflow. */ @@ -203,6 +202,22 @@ bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return NULL; } +static reloc_howto_type * +bfd_elf32_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, + const char *r_name) +{ + unsigned int i; + + for (i = 0; + i < sizeof (elf_d10v_howto_table) / sizeof (elf_d10v_howto_table[0]); + i++) + if (elf_d10v_howto_table[i].name != NULL + && strcasecmp (elf_d10v_howto_table[i].name, r_name) == 0) + return &elf_d10v_howto_table[i]; + + return NULL; +} + /* Set the howto pointer for an D10V ELF reloc. */ static void @@ -213,54 +228,30 @@ d10v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, unsigned int r_type; r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_D10V_max); + if (r_type >= (unsigned int) R_D10V_max) + { + _bfd_error_handler (_("%B: invalid D10V reloc number: %d"), abfd, r_type); + r_type = 0; + } cache_ptr->howto = &elf_d10v_howto_table[r_type]; } static asection * elf32_d10v_gc_mark_hook (asection *sec, - struct bfd_link_info *info ATTRIBUTE_UNUSED, + struct bfd_link_info *info, Elf_Internal_Rela *rel, struct elf_link_hash_entry *h, Elf_Internal_Sym *sym) { if (h != NULL) - { - switch (ELF32_R_TYPE (rel->r_info)) + switch (ELF32_R_TYPE (rel->r_info)) { case R_D10V_GNU_VTINHERIT: case R_D10V_GNU_VTENTRY: - break; - - default: - switch (h->root.type) - { - case bfd_link_hash_defined: - case bfd_link_hash_defweak: - return h->root.u.def.section; - - case bfd_link_hash_common: - return h->root.u.c.p->section; - - default: - break; - } - } - } - else - return bfd_section_from_elf_index (sec->owner, sym->st_shndx); + return NULL; + } - return NULL; -} - -static bfd_boolean -elf32_d10v_gc_sweep_hook (bfd *abfd ATTRIBUTE_UNUSED, - struct bfd_link_info *info ATTRIBUTE_UNUSED, - asection *sec ATTRIBUTE_UNUSED, - const Elf_Internal_Rela *relocs ATTRIBUTE_UNUSED) -{ - /* We don't use got and plt entries for d10v. */ - return TRUE; + return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); } /* Look through the relocs for a section during the first phase. @@ -274,18 +265,15 @@ elf32_d10v_check_relocs (bfd *abfd, const Elf_Internal_Rela *relocs) { Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; + struct elf_link_hash_entry **sym_hashes; const Elf_Internal_Rela *rel; const Elf_Internal_Rela *rel_end; - if (info->relocatable) + if (bfd_link_relocatable (info)) return TRUE; symtab_hdr = &elf_tdata (abfd)->symtab_hdr; sym_hashes = elf_sym_hashes (abfd); - sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); - if (!elf_bad_symtab (abfd)) - sym_hashes_end -= symtab_hdr->sh_info; rel_end = relocs + sec->reloc_count; for (rel = relocs; rel < rel_end; rel++) @@ -302,6 +290,10 @@ elf32_d10v_check_relocs (bfd *abfd, while (h->root.type == bfd_link_hash_indirect || h->root.type == bfd_link_hash_warning) h = (struct elf_link_hash_entry *) h->root.u.i.link; + + /* PR15323, ref flags aren't set for references in the same + object. */ + h->root.non_ir_ref = 1; } switch (ELF32_R_TYPE (rel->r_info)) @@ -316,7 +308,9 @@ elf32_d10v_check_relocs (bfd *abfd, /* This relocation describes which C++ vtable entries are actually used. Record for later use during GC. */ case R_D10V_GNU_VTENTRY: - if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) + BFD_ASSERT (h != NULL); + if (h != NULL + && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) return FALSE; break; } @@ -433,35 +427,6 @@ elf32_d10v_relocate_section (bfd *output_bfd, continue; howto = elf_d10v_howto_table + r_type; - - if (info->relocatable) - { - bfd_vma val; - bfd_byte *where; - - /* This is a relocatable link. We don't have to change - anything, unless the reloc is against a section symbol, - in which case we have to adjust according to where the - section symbol winds up in the output section. */ - if (r_symndx >= symtab_hdr->sh_info) - continue; - - sym = local_syms + r_symndx; - if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) - continue; - - sec = local_sections[r_symndx]; - val = sec->output_offset; - if (val == 0) - continue; - - where = contents + rel->r_offset; - val += extract_rel_addend (input_bfd, where, howto); - insert_rel_addend (input_bfd, where, howto, val); - continue; - } - - /* This is a final link. */ h = NULL; sym = NULL; sec = NULL; @@ -472,31 +437,46 @@ elf32_d10v_relocate_section (bfd *output_bfd, relocation = (sec->output_section->vma + sec->output_offset + sym->st_value); - if ((sec->flags & SEC_MERGE) - && ELF_ST_TYPE (sym->st_info) == STT_SECTION) + if (ELF_ST_TYPE (sym->st_info) == STT_SECTION + && ((sec->flags & SEC_MERGE) != 0 + || (bfd_link_relocatable (info) + && sec->output_offset != 0))) { - asection *msec; bfd_vma addend; bfd_byte *where = contents + rel->r_offset; addend = extract_rel_addend (input_bfd, where, howto); - msec = sec; - addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, addend); - addend -= relocation; - addend += msec->output_section->vma + msec->output_offset; + + if (bfd_link_relocatable (info)) + addend += sec->output_offset; + else + { + asection *msec = sec; + addend = _bfd_elf_rel_local_sym (output_bfd, sym, &msec, + addend); + addend -= relocation; + addend += msec->output_section->vma + msec->output_offset; + } insert_rel_addend (input_bfd, where, howto, addend); } } else { - bfd_boolean unresolved_reloc, warned; + bfd_boolean unresolved_reloc, warned, ignored; RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, r_symndx, symtab_hdr, sym_hashes, h, sec, relocation, - unresolved_reloc, warned); + unresolved_reloc, warned, ignored); } + if (sec != NULL && discarded_section (sec)) + RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, + rel, 1, relend, howto, 0, contents); + + if (bfd_link_relocatable (info)) + continue; + if (h != NULL) name = h->root.root.string; else @@ -565,7 +545,7 @@ elf32_d10v_relocate_section (bfd *output_bfd, #define ELF_MACHINE_ALT1 EM_CYGNUS_D10V #define ELF_MAXPAGESIZE 0x1000 -#define TARGET_BIG_SYM bfd_elf32_d10v_vec +#define TARGET_BIG_SYM d10v_elf32_vec #define TARGET_BIG_NAME "elf32-d10v" #define elf_info_to_howto 0 @@ -573,7 +553,6 @@ elf32_d10v_relocate_section (bfd *output_bfd, #define elf_backend_object_p 0 #define elf_backend_final_write_processing 0 #define elf_backend_gc_mark_hook elf32_d10v_gc_mark_hook -#define elf_backend_gc_sweep_hook elf32_d10v_gc_sweep_hook #define elf_backend_check_relocs elf32_d10v_check_relocs #define elf_backend_relocate_section elf32_d10v_relocate_section #define elf_backend_can_gc_sections 1