diff options
Diffstat (limited to 'binutils-2.24/bfd/elf32-moxie.c')
-rw-r--r-- | binutils-2.24/bfd/elf32-moxie.c | 390 |
1 files changed, 0 insertions, 390 deletions
diff --git a/binutils-2.24/bfd/elf32-moxie.c b/binutils-2.24/bfd/elf32-moxie.c deleted file mode 100644 index d0cbb0fa..00000000 --- a/binutils-2.24/bfd/elf32-moxie.c +++ /dev/null @@ -1,390 +0,0 @@ -/* moxie-specific support for 32-bit ELF. - Copyright 2009, 2010, 2012 Free Software Foundation, Inc. - - Copied from elf32-fr30.c which is.. - Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 - Free Software Foundation, Inc. - - 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/moxie.h" - -/* Forward declarations. */ - -static reloc_howto_type moxie_elf_howto_table [] = -{ - /* This reloc does nothing. */ - HOWTO (R_MOXIE_NONE, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MOXIE_NONE", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 32 bit absolute relocation. */ - HOWTO (R_MOXIE_32, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_MOXIE_32", /* name */ - FALSE, /* partial_inplace */ - 0x00000000, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ - - /* A 10 bit PC-relative relocation. */ - HOWTO (R_MOXIE_PCREL10, /* type. */ - 1, /* rightshift. */ - 1, /* size (0 = byte, 1 = short, 2 = long). */ - 10, /* bitsize. */ - TRUE, /* pc_relative. */ - 0, /* bitpos. */ - complain_overflow_signed, /* complain_on_overflow. */ - bfd_elf_generic_reloc, /* special_function. */ - "R_MOXIE_PCREL10", /* name. */ - FALSE, /* partial_inplace. */ - 0, /* src_mask. */ - 0x000003FF, /* dst_mask. */ - TRUE), /* pcrel_offset. */ -}; - -/* Map BFD reloc types to MOXIE ELF reloc types. */ - -struct moxie_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned int moxie_reloc_val; -}; - -static const struct moxie_reloc_map moxie_reloc_map [] = -{ - { BFD_RELOC_NONE, R_MOXIE_NONE }, - { BFD_RELOC_32, R_MOXIE_32 }, - { BFD_RELOC_MOXIE_10_PCREL, R_MOXIE_PCREL10 }, -}; - -static reloc_howto_type * -moxie_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, - bfd_reloc_code_real_type code) -{ - unsigned int i; - - for (i = sizeof (moxie_reloc_map) / sizeof (moxie_reloc_map[0]); - --i;) - if (moxie_reloc_map [i].bfd_reloc_val == code) - return & moxie_elf_howto_table [moxie_reloc_map[i].moxie_reloc_val]; - - return NULL; -} - -static reloc_howto_type * -moxie_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name) -{ - unsigned int i; - - for (i = 0; - i < sizeof (moxie_elf_howto_table) / sizeof (moxie_elf_howto_table[0]); - i++) - if (moxie_elf_howto_table[i].name != NULL - && strcasecmp (moxie_elf_howto_table[i].name, r_name) == 0) - return &moxie_elf_howto_table[i]; - - return NULL; -} - -/* Set the howto pointer for an MOXIE ELF reloc. */ - -static void -moxie_info_to_howto_rela (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_MOXIE_max); - cache_ptr->howto = & moxie_elf_howto_table [r_type]; -} - -/* Perform a single relocation. By default we use the standard BFD - routines, but a few relocs, we have to do them ourselves. */ - -static bfd_reloc_status_type -moxie_final_link_relocate (reloc_howto_type *howto, - bfd *input_bfd, - asection *input_section, - bfd_byte *contents, - Elf_Internal_Rela *rel, - bfd_vma relocation) -{ - bfd_reloc_status_type r = bfd_reloc_ok; - - switch (howto->type) - { - default: - r = _bfd_final_link_relocate (howto, input_bfd, input_section, - contents, rel->r_offset, - relocation, rel->r_addend); - } - - return r; -} - -/* Relocate an MOXIE ELF section. - - The RELOCATE_SECTION function is called by the new ELF backend linker - to handle the relocations for a section. - - The relocs are always passed as Rela structures; if the section - actually uses Rel structures, the r_addend field will always be - zero. - - This function is responsible for adjusting the section contents as - necessary, and (if using Rela relocs and generating a relocatable - output file) adjusting the reloc addend as necessary. - - This function does not have to worry about setting the reloc - address or the reloc symbol index. - - LOCAL_SYMS is a pointer to the swapped in local symbols. - - LOCAL_SECTIONS is an array giving the section in the input file - corresponding to the st_shndx field of each local symbol. - - The global hash table entry for the global symbols can be found - via elf_sym_hashes (input_bfd). - - When generating relocatable output, this function must handle - STB_LOCAL/STT_SECTION symbols specially. The output symbol is - going to be the section symbol corresponding to the output - section, which means that the addend must be adjusted - accordingly. */ - -static bfd_boolean -moxie_elf_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; - Elf_Internal_Rela *relend; - - symtab_hdr = & elf_tdata (input_bfd)->symtab_hdr; - sym_hashes = elf_sym_hashes (input_bfd); - relend = relocs + input_section->reloc_count; - - for (rel = relocs; rel < relend; rel ++) - { - 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; - const char *name; - int r_type; - - r_type = ELF32_R_TYPE (rel->r_info); - r_symndx = ELF32_R_SYM (rel->r_info); - howto = moxie_elf_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 = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); - - name = bfd_elf_string_from_elf_section - (input_bfd, symtab_hdr->sh_link, sym->st_name); - name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; - } - 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); - - name = h->root.root.string; - } - - 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; - - r = moxie_final_link_relocate (howto, input_bfd, input_section, - contents, rel, relocation); - - if (r != bfd_reloc_ok) - { - const char * msg = NULL; - - switch (r) - { - case bfd_reloc_overflow: - r = info->callbacks->reloc_overflow - (info, (h ? &h->root : NULL), name, howto->name, - (bfd_vma) 0, input_bfd, input_section, rel->r_offset); - break; - - case bfd_reloc_undefined: - r = info->callbacks->undefined_symbol - (info, name, input_bfd, input_section, rel->r_offset, - TRUE); - break; - - case bfd_reloc_outofrange: - msg = _("internal error: out of range error"); - break; - - case bfd_reloc_notsupported: - msg = _("internal error: unsupported relocation error"); - break; - - case bfd_reloc_dangerous: - msg = _("internal error: dangerous relocation"); - break; - - default: - msg = _("internal error: unknown error"); - break; - } - - if (msg) - r = info->callbacks->warning - (info, msg, name, input_bfd, input_section, rel->r_offset); - - if (! r) - return FALSE; - } - } - - return TRUE; -} - -/* Return the section that should be marked against GC for a given - relocation. */ - -static asection * -moxie_elf_gc_mark_hook (asection *sec, - struct bfd_link_info *info, - Elf_Internal_Rela *rel, - struct elf_link_hash_entry *h, - Elf_Internal_Sym *sym) -{ - 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 -moxie_elf_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; - } - } - - return TRUE; -} - -#define ELF_ARCH bfd_arch_moxie -#define ELF_MACHINE_CODE EM_MOXIE -#define ELF_MAXPAGESIZE 0x1 - -#define TARGET_BIG_SYM bfd_elf32_bigmoxie_vec -#define TARGET_BIG_NAME "elf32-bigmoxie" -#define TARGET_LITTLE_SYM bfd_elf32_littlemoxie_vec -#define TARGET_LITTLE_NAME "elf32-littlemoxie" - -#define elf_info_to_howto_rel NULL -#define elf_info_to_howto moxie_info_to_howto_rela -#define elf_backend_relocate_section moxie_elf_relocate_section -#define elf_backend_gc_mark_hook moxie_elf_gc_mark_hook -#define elf_backend_check_relocs moxie_elf_check_relocs - -#define elf_backend_can_gc_sections 1 -#define elf_backend_rela_normal 1 - -#define bfd_elf32_bfd_reloc_type_lookup moxie_reloc_type_lookup -#define bfd_elf32_bfd_reloc_name_lookup moxie_reloc_name_lookup - -#include "elf32-target.h" |