diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-d10v.c')
| -rw-r--r-- | binutils-2.24/bfd/elf32-d10v.c | 557 |
1 files changed, 0 insertions, 557 deletions
diff --git a/binutils-2.24/bfd/elf32-d10v.c b/binutils-2.24/bfd/elf32-d10v.c deleted file mode 100644 index f75c16ae..00000000 --- a/binutils-2.24/bfd/elf32-d10v.c +++ /dev/null @@ -1,557 +0,0 @@ -/* D10V-specific support for 32-bit ELF - Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, - 2007, 2010, 2012 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 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, - MA 02110-1301, USA. */ - -#include "sysdep.h" -#include "bfd.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/d10v.h" - -/* Use REL instead of RELA to save space. */ -#define USE_REL 1 - -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. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont,/* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_NONE", /* Name. */ - FALSE, /* Partial_inplace. */ - 0, /* Src_mask. */ - 0, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ - - /* An PC Relative 10-bit relocation, shifted by 2, right container. */ - HOWTO (R_D10V_10_PCREL_R, /* Type. */ - 2, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 8, /* Bitsize. */ - TRUE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_signed, /* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_10_PCREL_R", /* Name. */ - FALSE, /* Partial_inplace. */ - 0xff, /* Src_mask. */ - 0xff, /* Dst_mask. */ - TRUE), /* PCrel_offset. */ - - /* An PC Relative 10-bit relocation, shifted by 2, left container. */ - HOWTO (R_D10V_10_PCREL_L, /* Type. */ - 2, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 8, /* Bitsize. */ - TRUE, /* PC_relative. */ - 15, /* Bitpos. */ - complain_overflow_signed, /* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_10_PCREL_L", /* Name. */ - FALSE, /* Partial_inplace. */ - 0x07f8000, /* Src_mask. */ - 0x07f8000, /* Dst_mask. */ - TRUE), /* PCrel_offset. */ - - /* A 16 bit absolute relocation. */ - HOWTO (R_D10V_16, /* Type. */ - 0, /* Rightshift. */ - 1, /* Size (0 = byte, 1 = short, 2 = long). */ - 16, /* Bitsize. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont,/* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_16", /* Name. */ - FALSE, /* Partial_inplace. */ - 0xffff, /* Src_mask. */ - 0xffff, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ - - /* An 18 bit absolute relocation, right shifted 2. */ - HOWTO (R_D10V_18, /* Type. */ - 2, /* Rightshift. */ - 1, /* Size (0 = byte, 1 = short, 2 = long). */ - 16, /* Bitsize. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont, /* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_18", /* Name. */ - FALSE, /* Partial_inplace. */ - 0xffff, /* Src_mask. */ - 0xffff, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ - - /* A relative 18 bit relocation, right shifted by 2. */ - HOWTO (R_D10V_18_PCREL, /* Type. */ - 2, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 16, /* Bitsize. */ - TRUE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_signed, /* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_18_PCREL", /* Name. */ - FALSE, /* Partial_inplace. */ - 0xffff, /* Src_mask. */ - 0xffff, /* Dst_mask. */ - TRUE), /* PCrel_offset. */ - - /* A 32 bit absolute relocation. */ - HOWTO (R_D10V_32, /* Type. */ - 0, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 32, /* Bitsize. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont,/* Complain_on_overflow. */ - bfd_elf_generic_reloc, /* Special_function. */ - "R_D10V_32", /* Name. */ - FALSE, /* Partial_inplace. */ - 0xffffffff, /* Src_mask. */ - 0xffffffff, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ - - /* GNU extension to record C++ vtable hierarchy. */ - HOWTO (R_D10V_GNU_VTINHERIT, /* Type. */ - 0, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 0, /* Bitsize. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont,/* Complain_on_overflow. */ - NULL, /* Special_function. */ - "R_D10V_GNU_VTINHERIT",/* Name. */ - FALSE, /* Partial_inplace. */ - 0, /* Src_mask. */ - 0, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ - - /* GNU extension to record C++ vtable member usage. */ - HOWTO (R_D10V_GNU_VTENTRY, /* Type. */ - 0, /* Rightshift. */ - 2, /* Size (0 = byte, 1 = short, 2 = long). */ - 0, /* Bitsize. */ - FALSE, /* PC_relative. */ - 0, /* Bitpos. */ - complain_overflow_dont,/* Complain_on_overflow. */ - _bfd_elf_rel_vtable_reloc_fn, /* Special_function. */ - "R_D10V_GNU_VTENTRY", /* Name. */ - FALSE, /* Partial_inplace. */ - 0, /* Src_mask. */ - 0, /* Dst_mask. */ - FALSE), /* PCrel_offset. */ -}; - -/* Map BFD reloc types to D10V ELF reloc types. */ - -struct d10v_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -static const struct d10v_reloc_map d10v_reloc_map[] = -{ - { BFD_RELOC_NONE, R_D10V_NONE, }, - { BFD_RELOC_D10V_10_PCREL_R, R_D10V_10_PCREL_R }, - { BFD_RELOC_D10V_10_PCREL_L, R_D10V_10_PCREL_L }, - { BFD_RELOC_16, R_D10V_16 }, - { BFD_RELOC_D10V_18, R_D10V_18 }, - { BFD_RELOC_D10V_18_PCREL, R_D10V_18_PCREL }, - { BFD_RELOC_32, R_D10V_32 }, - { BFD_RELOC_VTABLE_INHERIT, R_D10V_GNU_VTINHERIT }, - { BFD_RELOC_VTABLE_ENTRY, R_D10V_GNU_VTENTRY }, -}; - -static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - unsigned int i; - - for (i = 0; - i < sizeof (d10v_reloc_map) / sizeof (struct d10v_reloc_map); - i++) - if (d10v_reloc_map[i].bfd_reloc_val == code) - return &elf_d10v_howto_table[d10v_reloc_map[i].elf_reloc_val]; - - 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 -d10v_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, - arelent *cache_ptr, - Elf_Internal_Rela *dst) -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_D10V_max); - cache_ptr->howto = &elf_d10v_howto_table[r_type]; -} - -static asection * -elf32_d10v_gc_mark_hook (asection *sec, - 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)) - { - case R_D10V_GNU_VTINHERIT: - case R_D10V_GNU_VTENTRY: - return NULL; - } - - return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); -} - -/* Look through the relocs for a section during the first phase. - Since we don't do .gots or .plts, we just need to consider the - virtual table relocs for gc. */ - -static bfd_boolean -elf32_d10v_check_relocs (bfd *abfd, - struct bfd_link_info *info, - asection *sec, - const Elf_Internal_Rela *relocs) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - const Elf_Internal_Rela *rel; - const Elf_Internal_Rela *rel_end; - - if (info->relocatable) - return TRUE; - - symtab_hdr = &elf_tdata (abfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (abfd); - - rel_end = relocs + sec->reloc_count; - for (rel = relocs; rel < rel_end; rel++) - { - struct elf_link_hash_entry *h; - unsigned long r_symndx; - - r_symndx = ELF32_R_SYM (rel->r_info); - if (r_symndx < symtab_hdr->sh_info) - h = NULL; - else - { - h = sym_hashes[r_symndx - symtab_hdr->sh_info]; - 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)) - { - /* This relocation describes the C++ object vtable hierarchy. - Reconstruct it for later use during GC. */ - case R_D10V_GNU_VTINHERIT: - if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) - return FALSE; - break; - - /* This relocation describes which C++ vtable entries are actually - used. Record for later use during GC. */ - case R_D10V_GNU_VTENTRY: - BFD_ASSERT (h != NULL); - if (h != NULL - && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_offset)) - return FALSE; - break; - } - } - - return TRUE; -} - -static bfd_vma -extract_rel_addend (bfd *abfd, - bfd_byte *where, - reloc_howto_type *howto) -{ - bfd_vma insn, val; - - switch (howto->size) - { - case 0: - insn = bfd_get_8 (abfd, where); - break; - case 1: - insn = bfd_get_16 (abfd, where); - break; - case 2: - insn = bfd_get_32 (abfd, where); - break; - default: - abort (); - } - - val = (insn & howto->dst_mask) >> howto->bitpos << howto->rightshift; - /* We should really be testing for signed addends here, but we don't - have that info directly in the howto. */ - if (howto->pc_relative) - { - bfd_vma sign; - sign = howto->dst_mask & (~howto->dst_mask >> 1 | ~(-(bfd_vma) 1 >> 1)); - sign = sign >> howto->bitpos << howto->rightshift; - val = (val ^ sign) - sign; - } - return val; -} - -static void -insert_rel_addend (bfd *abfd, - bfd_byte *where, - reloc_howto_type *howto, - bfd_vma addend) -{ - bfd_vma insn; - - addend = (addend >> howto->rightshift << howto->bitpos) & howto->dst_mask; - insn = ~howto->dst_mask; - switch (howto->size) - { - case 0: - insn &= bfd_get_8 (abfd, where); - insn |= addend; - bfd_put_8 (abfd, insn, where); - break; - case 1: - insn &= bfd_get_16 (abfd, where); - insn |= addend; - bfd_put_16 (abfd, insn, where); - break; - case 2: - insn &= bfd_get_32 (abfd, where); - insn |= addend; - bfd_put_32 (abfd, insn, where); - break; - default: - abort (); - } -} - -/* Relocate a D10V ELF section. */ - -static bfd_boolean -elf32_d10v_relocate_section (bfd *output_bfd, - struct bfd_link_info *info, - bfd *input_bfd, - asection *input_section, - bfd_byte *contents, - Elf_Internal_Rela *relocs, - Elf_Internal_Sym *local_syms, - asection **local_sections) -{ - Elf_Internal_Shdr *symtab_hdr; - struct elf_link_hash_entry **sym_hashes; - Elf_Internal_Rela *rel, *relend; - const char *name; - - symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - - rel = relocs; - relend = relocs + input_section->reloc_count; - for (; rel < relend; rel++) - { - int r_type; - reloc_howto_type *howto; - unsigned long r_symndx; - Elf_Internal_Sym *sym; - asection *sec; - struct elf_link_hash_entry *h; - bfd_vma relocation; - bfd_reloc_status_type r; - - r_symndx = ELF32_R_SYM (rel->r_info); - r_type = ELF32_R_TYPE (rel->r_info); - - if (r_type == R_D10V_GNU_VTENTRY - || r_type == R_D10V_GNU_VTINHERIT) - continue; - - howto = elf_d10v_howto_table + r_type; - h = NULL; - sym = NULL; - sec = NULL; - if (r_symndx < symtab_hdr->sh_info) - { - sym = local_syms + r_symndx; - sec = local_sections[r_symndx]; - relocation = (sec->output_section->vma - + sec->output_offset - + sym->st_value); - if (ELF_ST_TYPE (sym->st_info) == STT_SECTION - && ((sec->flags & SEC_MERGE) != 0 - || (info->relocatable - && sec->output_offset != 0))) - { - bfd_vma addend; - bfd_byte *where = contents + rel->r_offset; - - addend = extract_rel_addend (input_bfd, where, howto); - - if (info->relocatable) - 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; - - RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, - r_symndx, symtab_hdr, sym_hashes, - h, sec, relocation, - unresolved_reloc, warned); - } - - if (sec != NULL && discarded_section (sec)) - RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, - rel, 1, relend, howto, 0, contents); - - if (info->relocatable) - continue; - - if (h != NULL) - name = h->root.root.string; - else - { - name = (bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name)); - if (name == NULL || *name == '\0') - name = bfd_section_name (input_bfd, sec); - } - - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, (bfd_vma) 0); - - if (r != bfd_reloc_ok) - { - const char * msg = (const char *) 0; - - switch (r) - { - case bfd_reloc_overflow: - if (!((*info->callbacks->reloc_overflow) - (info, (h ? &h->root : NULL), name, howto->name, - (bfd_vma) 0, input_bfd, input_section, - rel->r_offset))) - return FALSE; - break; - - case bfd_reloc_undefined: - if (!((*info->callbacks->undefined_symbol) - (info, name, input_bfd, input_section, - rel->r_offset, TRUE))) - return FALSE; - break; - - case bfd_reloc_outofrange: - msg = _("internal error: out of range error"); - goto common_error; - - case bfd_reloc_notsupported: - msg = _("internal error: unsupported relocation error"); - goto common_error; - - case bfd_reloc_dangerous: - msg = _("internal error: dangerous error"); - goto common_error; - - default: - msg = _("internal error: unknown error"); - /* fall through */ - - common_error: - if (!((*info->callbacks->warning) - (info, msg, name, input_bfd, input_section, - rel->r_offset))) - return FALSE; - break; - } - } - } - - return TRUE; -} -#define ELF_ARCH bfd_arch_d10v -#define ELF_MACHINE_CODE EM_D10V -#define ELF_MACHINE_ALT1 EM_CYGNUS_D10V -#define ELF_MAXPAGESIZE 0x1000 - -#define TARGET_BIG_SYM bfd_elf32_d10v_vec -#define TARGET_BIG_NAME "elf32-d10v" - -#define elf_info_to_howto 0 -#define elf_info_to_howto_rel d10v_info_to_howto_rel -#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_check_relocs elf32_d10v_check_relocs -#define elf_backend_relocate_section elf32_d10v_relocate_section -#define elf_backend_can_gc_sections 1 - -#include "elf32-target.h" |