diff options
Diffstat (limited to 'bfd/elf32-arc.c')
| -rw-r--r-- | bfd/elf32-arc.c | 228 |
1 files changed, 0 insertions, 228 deletions
diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c deleted file mode 100644 index 82b610435fa..00000000000 --- a/bfd/elf32-arc.c +++ /dev/null @@ -1,228 +0,0 @@ -/* ARC-specific support for 32-bit ELF - Copyright 1994, 1995, 1997, 1999, 2001 Free Software Foundation, Inc. - Contributed by Doug Evans (dje@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 - (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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -#include "bfd.h" -#include "sysdep.h" -#include "libbfd.h" -#include "elf-bfd.h" -#include "elf/arc.h" - -static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); -static void arc_info_to_howto_rel - PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *)); -static boolean arc_elf_object_p - PARAMS ((bfd *)); -static void arc_elf_final_write_processing - PARAMS ((bfd *, boolean)); - -/* Try to minimize the amount of space occupied by relocation tables - on the ROM (not that the ROM won't be swamped by other ELF overhead). */ - -#define USE_REL - -static reloc_howto_type elf_arc_howto_table[] = -{ - /* This reloc does nothing. */ - HOWTO (R_ARC_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_ARC_NONE", /* name */ - false, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - false), /* pcrel_offset */ - - /* A standard 32 bit relocation. */ - HOWTO (R_ARC_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_ARC_32", /* name */ - false, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A 26 bit absolute branch, right shifted by 2. */ - HOWTO (R_ARC_B26, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - false, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_B26", /* name */ - false, /* partial_inplace */ - 0x00ffffff, /* src_mask */ - 0x00ffffff, /* dst_mask */ - false), /* pcrel_offset */ - - /* A relative 22 bit branch; bits 21-2 are stored in bits 26-7. */ - HOWTO (R_ARC_B22_PCREL, /* type */ - 2, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 22, /* bitsize */ - true, /* pc_relative */ - 7, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - bfd_elf_generic_reloc, /* special_function */ - "R_ARC_B22_PCREL", /* name */ - false, /* partial_inplace */ - 0x07ffff80, /* src_mask */ - 0x07ffff80, /* dst_mask */ - true), /* pcrel_offset */ - -}; - -/* Map BFD reloc types to ARC ELF reloc types. */ - -struct arc_reloc_map -{ - bfd_reloc_code_real_type bfd_reloc_val; - unsigned char elf_reloc_val; -}; - -static const struct arc_reloc_map arc_reloc_map[] = -{ - { BFD_RELOC_NONE, R_ARC_NONE, }, - { BFD_RELOC_32, R_ARC_32 }, - { BFD_RELOC_CTOR, R_ARC_32 }, - { BFD_RELOC_ARC_B26, R_ARC_B26 }, - { BFD_RELOC_ARC_B22_PCREL, R_ARC_B22_PCREL }, -}; - -static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; -{ - unsigned int i; - - for (i = 0; i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map); i++) - { - if (arc_reloc_map[i].bfd_reloc_val == code) - return &elf_arc_howto_table[arc_reloc_map[i].elf_reloc_val]; - } - return NULL; -} - -/* Set the howto pointer for an ARC ELF reloc. */ - -static void -arc_info_to_howto_rel (abfd, cache_ptr, dst) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *cache_ptr; - Elf32_Internal_Rel *dst; -{ - unsigned int r_type; - - r_type = ELF32_R_TYPE (dst->r_info); - BFD_ASSERT (r_type < (unsigned int) R_ARC_max); - cache_ptr->howto = &elf_arc_howto_table[r_type]; -} - -/* Set the right machine number for an ARC ELF file. */ - -static boolean -arc_elf_object_p (abfd) - bfd *abfd; -{ - int mach = bfd_mach_arc_6; - - if (elf_elfheader(abfd)->e_machine == EM_ARC) - { - unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH; - - switch (arch) - { - case E_ARC_MACH_ARC5: - mach = bfd_mach_arc_5; - break; - default: - case E_ARC_MACH_ARC6: - mach = bfd_mach_arc_6; - break; - case E_ARC_MACH_ARC7: - mach = bfd_mach_arc_7; - break; - case E_ARC_MACH_ARC8: - mach = bfd_mach_arc_8; - break; - } - } - return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach); -} - -/* The final processing done just before writing out an ARC ELF object file. - This gets the ARC architecture right based on the machine number. */ - -static void -arc_elf_final_write_processing (abfd, linker) - bfd *abfd; - boolean linker ATTRIBUTE_UNUSED; -{ - unsigned long val; - - switch (bfd_get_mach (abfd)) - { - case bfd_mach_arc_5: - val = E_ARC_MACH_ARC5; - break; - default: - case bfd_mach_arc_6: - val = E_ARC_MACH_ARC6; - break; - case bfd_mach_arc_7: - val = E_ARC_MACH_ARC7; - break; - case bfd_mach_arc_8: - val = E_ARC_MACH_ARC8; - break; - } - elf_elfheader (abfd)->e_machine = EM_ARC; - elf_elfheader (abfd)->e_flags &=~ EF_ARC_MACH; - elf_elfheader (abfd)->e_flags |= val; -} - -#define TARGET_LITTLE_SYM bfd_elf32_littlearc_vec -#define TARGET_LITTLE_NAME "elf32-littlearc" -#define TARGET_BIG_SYM bfd_elf32_bigarc_vec -#define TARGET_BIG_NAME "elf32-bigarc" -#define ELF_ARCH bfd_arch_arc -#define ELF_MACHINE_CODE EM_ARC -#define ELF_MAXPAGESIZE 0x1000 - -#define elf_info_to_howto 0 -#define elf_info_to_howto_rel arc_info_to_howto_rel -#define elf_backend_object_p arc_elf_object_p -#define elf_backend_final_write_processing arc_elf_final_write_processing - -#include "elf32-target.h" |