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1181 |
sfurman |
/* 32-bit ELF support for ARM new abi option.
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Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "elf/arm.h"
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "elf-bfd.h"
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#ifndef NUM_ELEM
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#define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0]))
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#endif
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#define USE_REL
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#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec
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#define TARGET_LITTLE_NAME "elf32-littlearm"
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#define TARGET_BIG_SYM bfd_elf32_bigarm_vec
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#define TARGET_BIG_NAME "elf32-bigarm"
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#define elf_info_to_howto 0
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#define elf_info_to_howto_rel elf32_arm_info_to_howto
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#define ARM_ELF_ABI_VERSION 0
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#define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM
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static reloc_howto_type * elf32_arm_reloc_type_lookup
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PARAMS ((bfd * abfd, bfd_reloc_code_real_type code));
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static boolean elf32_arm_nabi_grok_prstatus
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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static boolean elf32_arm_nabi_grok_psinfo
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PARAMS ((bfd *abfd, Elf_Internal_Note *note));
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/* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g.
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R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO
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in that slot. */
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static reloc_howto_type elf32_arm_howto_table[] =
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{
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/* No relocation */
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HOWTO (R_ARM_NONE, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_NONE", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false), /* pcrel_offset */
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HOWTO (R_ARM_PC24, /* type */
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2, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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24, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_PC24", /* name */
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false, /* partial_inplace */
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0x00ffffff, /* src_mask */
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0x00ffffff, /* dst_mask */
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true), /* pcrel_offset */
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/* 32 bit absolute */
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HOWTO (R_ARM_ABS32, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_ABS32", /* name */
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false, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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false), /* pcrel_offset */
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/* standard 32bit pc-relative reloc */
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HOWTO (R_ARM_REL32, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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32, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_REL32", /* name */
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false, /* partial_inplace */
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0xffffffff, /* src_mask */
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0xffffffff, /* dst_mask */
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true), /* pcrel_offset */
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/* 8 bit absolute */
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HOWTO (R_ARM_PC13, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_PC13", /* name */
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false, /* partial_inplace */
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0x000000ff, /* src_mask */
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0x000000ff, /* dst_mask */
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false), /* pcrel_offset */
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/* 16 bit absolute */
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HOWTO (R_ARM_ABS16, /* type */
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0, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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16, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_ABS16", /* name */
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false, /* partial_inplace */
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0x0000ffff, /* src_mask */
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0x0000ffff, /* dst_mask */
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false), /* pcrel_offset */
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/* 12 bit absolute */
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HOWTO (R_ARM_ABS12, /* type */
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0, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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12, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_ABS12", /* name */
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false, /* partial_inplace */
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0x000008ff, /* src_mask */
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0x000008ff, /* dst_mask */
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false), /* pcrel_offset */
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HOWTO (R_ARM_THM_ABS5, /* type */
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6, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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5, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_THM_ABS5", /* name */
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false, /* partial_inplace */
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0x000007e0, /* src_mask */
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0x000007e0, /* dst_mask */
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false), /* pcrel_offset */
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/* 8 bit absolute */
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HOWTO (R_ARM_ABS8, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_bitfield,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_ABS8", /* name */
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false, /* partial_inplace */
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0x000000ff, /* src_mask */
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0x000000ff, /* dst_mask */
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false), /* pcrel_offset */
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HOWTO (R_ARM_SBREL32, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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0, /* bitsize */
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false, /* pc_relative */
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0, /* bitpos */
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complain_overflow_dont,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_SBREL32", /* name */
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false, /* partial_inplace */
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0, /* src_mask */
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0, /* dst_mask */
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false), /* pcrel_offset */
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HOWTO (R_ARM_THM_PC22, /* type */
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1, /* rightshift */
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2, /* size (0 = byte, 1 = short, 2 = long) */
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23, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_THM_PC22", /* name */
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false, /* partial_inplace */
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0x07ff07ff, /* src_mask */
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0x07ff07ff, /* dst_mask */
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true), /* pcrel_offset */
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HOWTO (R_ARM_THM_PC8, /* type */
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1, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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complain_overflow_signed,/* complain_on_overflow */
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bfd_elf_generic_reloc, /* special_function */
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"R_ARM_THM_PC8", /* name */
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false, /* partial_inplace */
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0x000000ff, /* src_mask */
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0x000000ff, /* dst_mask */
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true), /* pcrel_offset */
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HOWTO (R_ARM_AMP_VCALL9, /* type */
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1, /* rightshift */
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1, /* size (0 = byte, 1 = short, 2 = long) */
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8, /* bitsize */
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true, /* pc_relative */
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0, /* bitpos */
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| 237 |
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complain_overflow_signed,/* complain_on_overflow */
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| 238 |
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bfd_elf_generic_reloc, /* special_function */
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| 239 |
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"R_ARM_AMP_VCALL9", /* name */
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false, /* partial_inplace */
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| 241 |
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0x000000ff, /* src_mask */
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0x000000ff, /* dst_mask */
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true), /* pcrel_offset */
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HOWTO (R_ARM_SWI24, /* type */
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0, /* rightshift */
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0, /* size (0 = byte, 1 = short, 2 = long) */
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| 248 |
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0, /* bitsize */
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| 249 |
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false, /* pc_relative */
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| 250 |
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0, /* bitpos */
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| 251 |
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complain_overflow_signed,/* complain_on_overflow */
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| 252 |
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bfd_elf_generic_reloc, /* special_function */
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| 253 |
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"R_ARM_SWI24", /* name */
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| 254 |
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false, /* partial_inplace */
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| 255 |
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0x00000000, /* src_mask */
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0x00000000, /* dst_mask */
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| 257 |
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false), /* pcrel_offset */
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| 259 |
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HOWTO (R_ARM_THM_SWI8, /* type */
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| 260 |
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0, /* rightshift */
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| 261 |
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0, /* size (0 = byte, 1 = short, 2 = long) */
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| 262 |
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0, /* bitsize */
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| 263 |
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false, /* pc_relative */
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| 264 |
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0, /* bitpos */
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| 265 |
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complain_overflow_signed,/* complain_on_overflow */
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| 266 |
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bfd_elf_generic_reloc, /* special_function */
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| 267 |
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"R_ARM_SWI8", /* name */
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| 268 |
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false, /* partial_inplace */
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| 269 |
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0x00000000, /* src_mask */
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| 270 |
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0x00000000, /* dst_mask */
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| 271 |
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false), /* pcrel_offset */
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| 272 |
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| 273 |
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/* BLX instruction for the ARM. */
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| 274 |
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HOWTO (R_ARM_XPC25, /* type */
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| 275 |
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2, /* rightshift */
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| 276 |
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2, /* size (0 = byte, 1 = short, 2 = long) */
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| 277 |
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25, /* bitsize */
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| 278 |
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true, /* pc_relative */
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| 279 |
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0, /* bitpos */
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| 280 |
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complain_overflow_signed,/* complain_on_overflow */
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| 281 |
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bfd_elf_generic_reloc, /* special_function */
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| 282 |
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"R_ARM_XPC25", /* name */
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| 283 |
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false, /* partial_inplace */
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| 284 |
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0x00ffffff, /* src_mask */
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| 285 |
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0x00ffffff, /* dst_mask */
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| 286 |
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true), /* pcrel_offset */
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| 287 |
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| 288 |
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/* BLX instruction for the Thumb. */
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| 289 |
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HOWTO (R_ARM_THM_XPC22, /* type */
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| 290 |
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2, /* rightshift */
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| 291 |
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2, /* size (0 = byte, 1 = short, 2 = long) */
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| 292 |
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22, /* bitsize */
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| 293 |
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true, /* pc_relative */
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| 294 |
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0, /* bitpos */
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| 295 |
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complain_overflow_signed,/* complain_on_overflow */
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| 296 |
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bfd_elf_generic_reloc, /* special_function */
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| 297 |
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"R_ARM_THM_XPC22", /* name */
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| 298 |
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false, /* partial_inplace */
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| 299 |
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0x07ff07ff, /* src_mask */
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| 300 |
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0x07ff07ff, /* dst_mask */
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| 301 |
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true), /* pcrel_offset */
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| 302 |
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| 303 |
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/* These next three relocs are not defined, but we need to fill the space. */
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| 304 |
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| 305 |
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HOWTO (R_ARM_NONE, /* type */
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| 306 |
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0, /* rightshift */
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| 307 |
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0, /* size (0 = byte, 1 = short, 2 = long) */
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| 308 |
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0, /* bitsize */
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| 309 |
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false, /* pc_relative */
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| 310 |
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0, /* bitpos */
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| 311 |
|
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complain_overflow_dont,/* complain_on_overflow */
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| 312 |
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bfd_elf_generic_reloc, /* special_function */
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| 313 |
|
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"R_ARM_unknown_17", /* name */
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| 314 |
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false, /* partial_inplace */
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| 315 |
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0, /* src_mask */
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| 316 |
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0, /* dst_mask */
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| 317 |
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false), /* pcrel_offset */
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| 318 |
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| 319 |
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HOWTO (R_ARM_NONE, /* type */
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| 320 |
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0, /* rightshift */
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| 321 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 322 |
|
|
0, /* bitsize */
|
| 323 |
|
|
false, /* pc_relative */
|
| 324 |
|
|
0, /* bitpos */
|
| 325 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 326 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 327 |
|
|
"R_ARM_unknown_18", /* name */
|
| 328 |
|
|
false, /* partial_inplace */
|
| 329 |
|
|
0, /* src_mask */
|
| 330 |
|
|
0, /* dst_mask */
|
| 331 |
|
|
false), /* pcrel_offset */
|
| 332 |
|
|
|
| 333 |
|
|
HOWTO (R_ARM_NONE, /* type */
|
| 334 |
|
|
0, /* rightshift */
|
| 335 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 336 |
|
|
0, /* bitsize */
|
| 337 |
|
|
false, /* pc_relative */
|
| 338 |
|
|
0, /* bitpos */
|
| 339 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 340 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 341 |
|
|
"R_ARM_unknown_19", /* name */
|
| 342 |
|
|
false, /* partial_inplace */
|
| 343 |
|
|
0, /* src_mask */
|
| 344 |
|
|
0, /* dst_mask */
|
| 345 |
|
|
false), /* pcrel_offset */
|
| 346 |
|
|
|
| 347 |
|
|
/* Relocs used in ARM Linux */
|
| 348 |
|
|
|
| 349 |
|
|
HOWTO (R_ARM_COPY, /* type */
|
| 350 |
|
|
0, /* rightshift */
|
| 351 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 352 |
|
|
32, /* bitsize */
|
| 353 |
|
|
false, /* pc_relative */
|
| 354 |
|
|
0, /* bitpos */
|
| 355 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 356 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 357 |
|
|
"R_ARM_COPY", /* name */
|
| 358 |
|
|
true, /* partial_inplace */
|
| 359 |
|
|
0xffffffff, /* src_mask */
|
| 360 |
|
|
0xffffffff, /* dst_mask */
|
| 361 |
|
|
false), /* pcrel_offset */
|
| 362 |
|
|
|
| 363 |
|
|
HOWTO (R_ARM_GLOB_DAT, /* type */
|
| 364 |
|
|
0, /* rightshift */
|
| 365 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 366 |
|
|
32, /* bitsize */
|
| 367 |
|
|
false, /* pc_relative */
|
| 368 |
|
|
0, /* bitpos */
|
| 369 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 370 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 371 |
|
|
"R_ARM_GLOB_DAT", /* name */
|
| 372 |
|
|
true, /* partial_inplace */
|
| 373 |
|
|
0xffffffff, /* src_mask */
|
| 374 |
|
|
0xffffffff, /* dst_mask */
|
| 375 |
|
|
false), /* pcrel_offset */
|
| 376 |
|
|
|
| 377 |
|
|
HOWTO (R_ARM_JUMP_SLOT, /* type */
|
| 378 |
|
|
0, /* rightshift */
|
| 379 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 380 |
|
|
32, /* bitsize */
|
| 381 |
|
|
false, /* pc_relative */
|
| 382 |
|
|
0, /* bitpos */
|
| 383 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 384 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 385 |
|
|
"R_ARM_JUMP_SLOT", /* name */
|
| 386 |
|
|
true, /* partial_inplace */
|
| 387 |
|
|
0xffffffff, /* src_mask */
|
| 388 |
|
|
0xffffffff, /* dst_mask */
|
| 389 |
|
|
false), /* pcrel_offset */
|
| 390 |
|
|
|
| 391 |
|
|
HOWTO (R_ARM_RELATIVE, /* type */
|
| 392 |
|
|
0, /* rightshift */
|
| 393 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 394 |
|
|
32, /* bitsize */
|
| 395 |
|
|
false, /* pc_relative */
|
| 396 |
|
|
0, /* bitpos */
|
| 397 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 398 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 399 |
|
|
"R_ARM_RELATIVE", /* name */
|
| 400 |
|
|
true, /* partial_inplace */
|
| 401 |
|
|
0xffffffff, /* src_mask */
|
| 402 |
|
|
0xffffffff, /* dst_mask */
|
| 403 |
|
|
false), /* pcrel_offset */
|
| 404 |
|
|
|
| 405 |
|
|
HOWTO (R_ARM_GOTOFF, /* type */
|
| 406 |
|
|
0, /* rightshift */
|
| 407 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 408 |
|
|
32, /* bitsize */
|
| 409 |
|
|
false, /* pc_relative */
|
| 410 |
|
|
0, /* bitpos */
|
| 411 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 412 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 413 |
|
|
"R_ARM_GOTOFF", /* name */
|
| 414 |
|
|
true, /* partial_inplace */
|
| 415 |
|
|
0xffffffff, /* src_mask */
|
| 416 |
|
|
0xffffffff, /* dst_mask */
|
| 417 |
|
|
false), /* pcrel_offset */
|
| 418 |
|
|
|
| 419 |
|
|
HOWTO (R_ARM_GOTPC, /* type */
|
| 420 |
|
|
0, /* rightshift */
|
| 421 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 422 |
|
|
32, /* bitsize */
|
| 423 |
|
|
true, /* pc_relative */
|
| 424 |
|
|
0, /* bitpos */
|
| 425 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 426 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 427 |
|
|
"R_ARM_GOTPC", /* name */
|
| 428 |
|
|
true, /* partial_inplace */
|
| 429 |
|
|
0xffffffff, /* src_mask */
|
| 430 |
|
|
0xffffffff, /* dst_mask */
|
| 431 |
|
|
true), /* pcrel_offset */
|
| 432 |
|
|
|
| 433 |
|
|
HOWTO (R_ARM_GOT32, /* type */
|
| 434 |
|
|
0, /* rightshift */
|
| 435 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 436 |
|
|
32, /* bitsize */
|
| 437 |
|
|
false, /* pc_relative */
|
| 438 |
|
|
0, /* bitpos */
|
| 439 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 440 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 441 |
|
|
"R_ARM_GOT32", /* name */
|
| 442 |
|
|
true, /* partial_inplace */
|
| 443 |
|
|
0xffffffff, /* src_mask */
|
| 444 |
|
|
0xffffffff, /* dst_mask */
|
| 445 |
|
|
false), /* pcrel_offset */
|
| 446 |
|
|
|
| 447 |
|
|
HOWTO (R_ARM_PLT32, /* type */
|
| 448 |
|
|
2, /* rightshift */
|
| 449 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 450 |
|
|
26, /* bitsize */
|
| 451 |
|
|
true, /* pc_relative */
|
| 452 |
|
|
0, /* bitpos */
|
| 453 |
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
| 454 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 455 |
|
|
"R_ARM_PLT32", /* name */
|
| 456 |
|
|
true, /* partial_inplace */
|
| 457 |
|
|
0x00ffffff, /* src_mask */
|
| 458 |
|
|
0x00ffffff, /* dst_mask */
|
| 459 |
|
|
true), /* pcrel_offset */
|
| 460 |
|
|
|
| 461 |
|
|
/* End of relocs used in ARM Linux */
|
| 462 |
|
|
|
| 463 |
|
|
HOWTO (R_ARM_RREL32, /* type */
|
| 464 |
|
|
0, /* rightshift */
|
| 465 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 466 |
|
|
0, /* bitsize */
|
| 467 |
|
|
false, /* pc_relative */
|
| 468 |
|
|
0, /* bitpos */
|
| 469 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 470 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 471 |
|
|
"R_ARM_RREL32", /* name */
|
| 472 |
|
|
false, /* partial_inplace */
|
| 473 |
|
|
0, /* src_mask */
|
| 474 |
|
|
0, /* dst_mask */
|
| 475 |
|
|
false), /* pcrel_offset */
|
| 476 |
|
|
|
| 477 |
|
|
HOWTO (R_ARM_RABS32, /* type */
|
| 478 |
|
|
0, /* rightshift */
|
| 479 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 480 |
|
|
0, /* bitsize */
|
| 481 |
|
|
false, /* pc_relative */
|
| 482 |
|
|
0, /* bitpos */
|
| 483 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 484 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 485 |
|
|
"R_ARM_RABS32", /* name */
|
| 486 |
|
|
false, /* partial_inplace */
|
| 487 |
|
|
0, /* src_mask */
|
| 488 |
|
|
0, /* dst_mask */
|
| 489 |
|
|
false), /* pcrel_offset */
|
| 490 |
|
|
|
| 491 |
|
|
HOWTO (R_ARM_RPC24, /* type */
|
| 492 |
|
|
0, /* rightshift */
|
| 493 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 494 |
|
|
0, /* bitsize */
|
| 495 |
|
|
false, /* pc_relative */
|
| 496 |
|
|
0, /* bitpos */
|
| 497 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 498 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 499 |
|
|
"R_ARM_RPC24", /* name */
|
| 500 |
|
|
false, /* partial_inplace */
|
| 501 |
|
|
0, /* src_mask */
|
| 502 |
|
|
0, /* dst_mask */
|
| 503 |
|
|
false), /* pcrel_offset */
|
| 504 |
|
|
|
| 505 |
|
|
HOWTO (R_ARM_RBASE, /* type */
|
| 506 |
|
|
0, /* rightshift */
|
| 507 |
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
| 508 |
|
|
0, /* bitsize */
|
| 509 |
|
|
false, /* pc_relative */
|
| 510 |
|
|
0, /* bitpos */
|
| 511 |
|
|
complain_overflow_dont,/* complain_on_overflow */
|
| 512 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 513 |
|
|
"R_ARM_RBASE", /* name */
|
| 514 |
|
|
false, /* partial_inplace */
|
| 515 |
|
|
0, /* src_mask */
|
| 516 |
|
|
0, /* dst_mask */
|
| 517 |
|
|
false), /* pcrel_offset */
|
| 518 |
|
|
|
| 519 |
|
|
};
|
| 520 |
|
|
|
| 521 |
|
|
/* GNU extension to record C++ vtable hierarchy */
|
| 522 |
|
|
static reloc_howto_type elf32_arm_vtinherit_howto =
|
| 523 |
|
|
HOWTO (R_ARM_GNU_VTINHERIT, /* type */
|
| 524 |
|
|
0, /* rightshift */
|
| 525 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 526 |
|
|
0, /* bitsize */
|
| 527 |
|
|
false, /* pc_relative */
|
| 528 |
|
|
0, /* bitpos */
|
| 529 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 530 |
|
|
NULL, /* special_function */
|
| 531 |
|
|
"R_ARM_GNU_VTINHERIT", /* name */
|
| 532 |
|
|
false, /* partial_inplace */
|
| 533 |
|
|
0, /* src_mask */
|
| 534 |
|
|
0, /* dst_mask */
|
| 535 |
|
|
false); /* pcrel_offset */
|
| 536 |
|
|
|
| 537 |
|
|
/* GNU extension to record C++ vtable member usage */
|
| 538 |
|
|
static reloc_howto_type elf32_arm_vtentry_howto =
|
| 539 |
|
|
HOWTO (R_ARM_GNU_VTENTRY, /* type */
|
| 540 |
|
|
0, /* rightshift */
|
| 541 |
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
| 542 |
|
|
0, /* bitsize */
|
| 543 |
|
|
false, /* pc_relative */
|
| 544 |
|
|
0, /* bitpos */
|
| 545 |
|
|
complain_overflow_dont, /* complain_on_overflow */
|
| 546 |
|
|
_bfd_elf_rel_vtable_reloc_fn, /* special_function */
|
| 547 |
|
|
"R_ARM_GNU_VTENTRY", /* name */
|
| 548 |
|
|
false, /* partial_inplace */
|
| 549 |
|
|
0, /* src_mask */
|
| 550 |
|
|
0, /* dst_mask */
|
| 551 |
|
|
false); /* pcrel_offset */
|
| 552 |
|
|
|
| 553 |
|
|
/* 12 bit pc relative */
|
| 554 |
|
|
static reloc_howto_type elf32_arm_thm_pc11_howto =
|
| 555 |
|
|
HOWTO (R_ARM_THM_PC11, /* type */
|
| 556 |
|
|
1, /* rightshift */
|
| 557 |
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
| 558 |
|
|
11, /* bitsize */
|
| 559 |
|
|
true, /* pc_relative */
|
| 560 |
|
|
0, /* bitpos */
|
| 561 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 562 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 563 |
|
|
"R_ARM_THM_PC11", /* name */
|
| 564 |
|
|
false, /* partial_inplace */
|
| 565 |
|
|
0x000007ff, /* src_mask */
|
| 566 |
|
|
0x000007ff, /* dst_mask */
|
| 567 |
|
|
true); /* pcrel_offset */
|
| 568 |
|
|
|
| 569 |
|
|
/* 12 bit pc relative */
|
| 570 |
|
|
static reloc_howto_type elf32_arm_thm_pc9_howto =
|
| 571 |
|
|
HOWTO (R_ARM_THM_PC9, /* type */
|
| 572 |
|
|
1, /* rightshift */
|
| 573 |
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
| 574 |
|
|
8, /* bitsize */
|
| 575 |
|
|
true, /* pc_relative */
|
| 576 |
|
|
0, /* bitpos */
|
| 577 |
|
|
complain_overflow_signed, /* complain_on_overflow */
|
| 578 |
|
|
bfd_elf_generic_reloc, /* special_function */
|
| 579 |
|
|
"R_ARM_THM_PC9", /* name */
|
| 580 |
|
|
false, /* partial_inplace */
|
| 581 |
|
|
0x000000ff, /* src_mask */
|
| 582 |
|
|
0x000000ff, /* dst_mask */
|
| 583 |
|
|
true); /* pcrel_offset */
|
| 584 |
|
|
|
| 585 |
|
|
static void elf32_arm_info_to_howto
|
| 586 |
|
|
PARAMS ((bfd *, arelent *, Elf32_Internal_Rel *));
|
| 587 |
|
|
|
| 588 |
|
|
static void
|
| 589 |
|
|
elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
|
| 590 |
|
|
bfd * abfd ATTRIBUTE_UNUSED;
|
| 591 |
|
|
arelent * bfd_reloc;
|
| 592 |
|
|
Elf32_Internal_Rel * elf_reloc;
|
| 593 |
|
|
{
|
| 594 |
|
|
unsigned int r_type;
|
| 595 |
|
|
|
| 596 |
|
|
r_type = ELF32_R_TYPE (elf_reloc->r_info);
|
| 597 |
|
|
|
| 598 |
|
|
switch (r_type)
|
| 599 |
|
|
{
|
| 600 |
|
|
case R_ARM_GNU_VTINHERIT:
|
| 601 |
|
|
bfd_reloc->howto = & elf32_arm_vtinherit_howto;
|
| 602 |
|
|
break;
|
| 603 |
|
|
|
| 604 |
|
|
case R_ARM_GNU_VTENTRY:
|
| 605 |
|
|
bfd_reloc->howto = & elf32_arm_vtentry_howto;
|
| 606 |
|
|
break;
|
| 607 |
|
|
|
| 608 |
|
|
case R_ARM_THM_PC11:
|
| 609 |
|
|
bfd_reloc->howto = & elf32_arm_thm_pc11_howto;
|
| 610 |
|
|
break;
|
| 611 |
|
|
|
| 612 |
|
|
case R_ARM_THM_PC9:
|
| 613 |
|
|
bfd_reloc->howto = & elf32_arm_thm_pc9_howto;
|
| 614 |
|
|
break;
|
| 615 |
|
|
|
| 616 |
|
|
default:
|
| 617 |
|
|
if (r_type >= NUM_ELEM (elf32_arm_howto_table))
|
| 618 |
|
|
bfd_reloc->howto = NULL;
|
| 619 |
|
|
else
|
| 620 |
|
|
bfd_reloc->howto = & elf32_arm_howto_table[r_type];
|
| 621 |
|
|
break;
|
| 622 |
|
|
}
|
| 623 |
|
|
}
|
| 624 |
|
|
|
| 625 |
|
|
struct elf32_arm_reloc_map
|
| 626 |
|
|
{
|
| 627 |
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
| 628 |
|
|
unsigned char elf_reloc_val;
|
| 629 |
|
|
};
|
| 630 |
|
|
|
| 631 |
|
|
static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
|
| 632 |
|
|
{
|
| 633 |
|
|
{BFD_RELOC_NONE, R_ARM_NONE},
|
| 634 |
|
|
{BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
|
| 635 |
|
|
{BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
|
| 636 |
|
|
{BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
|
| 637 |
|
|
{BFD_RELOC_32, R_ARM_ABS32},
|
| 638 |
|
|
{BFD_RELOC_32_PCREL, R_ARM_REL32},
|
| 639 |
|
|
{BFD_RELOC_8, R_ARM_ABS8},
|
| 640 |
|
|
{BFD_RELOC_16, R_ARM_ABS16},
|
| 641 |
|
|
{BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
|
| 642 |
|
|
{BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
|
| 643 |
|
|
{BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
|
| 644 |
|
|
{BFD_RELOC_ARM_COPY, R_ARM_COPY},
|
| 645 |
|
|
{BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
|
| 646 |
|
|
{BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
|
| 647 |
|
|
{BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
|
| 648 |
|
|
{BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF},
|
| 649 |
|
|
{BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
|
| 650 |
|
|
{BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
|
| 651 |
|
|
{BFD_RELOC_ARM_PLT32, R_ARM_PLT32}
|
| 652 |
|
|
};
|
| 653 |
|
|
|
| 654 |
|
|
static reloc_howto_type *
|
| 655 |
|
|
elf32_arm_reloc_type_lookup (abfd, code)
|
| 656 |
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
| 657 |
|
|
bfd_reloc_code_real_type code;
|
| 658 |
|
|
{
|
| 659 |
|
|
unsigned int i;
|
| 660 |
|
|
|
| 661 |
|
|
switch (code)
|
| 662 |
|
|
{
|
| 663 |
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
| 664 |
|
|
return & elf32_arm_vtinherit_howto;
|
| 665 |
|
|
|
| 666 |
|
|
case BFD_RELOC_VTABLE_ENTRY:
|
| 667 |
|
|
return & elf32_arm_vtentry_howto;
|
| 668 |
|
|
|
| 669 |
|
|
case BFD_RELOC_THUMB_PCREL_BRANCH12:
|
| 670 |
|
|
return & elf32_arm_thm_pc11_howto;
|
| 671 |
|
|
|
| 672 |
|
|
case BFD_RELOC_THUMB_PCREL_BRANCH9:
|
| 673 |
|
|
return & elf32_arm_thm_pc9_howto;
|
| 674 |
|
|
|
| 675 |
|
|
default:
|
| 676 |
|
|
for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
|
| 677 |
|
|
if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
|
| 678 |
|
|
return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
|
| 679 |
|
|
|
| 680 |
|
|
return NULL;
|
| 681 |
|
|
}
|
| 682 |
|
|
}
|
| 683 |
|
|
|
| 684 |
|
|
/* Support for core dump NOTE sections */
|
| 685 |
|
|
static boolean
|
| 686 |
|
|
elf32_arm_nabi_grok_prstatus (abfd, note)
|
| 687 |
|
|
bfd *abfd;
|
| 688 |
|
|
Elf_Internal_Note *note;
|
| 689 |
|
|
{
|
| 690 |
|
|
int offset;
|
| 691 |
|
|
size_t raw_size;
|
| 692 |
|
|
|
| 693 |
|
|
switch (note->descsz)
|
| 694 |
|
|
{
|
| 695 |
|
|
default:
|
| 696 |
|
|
return false;
|
| 697 |
|
|
|
| 698 |
|
|
case 148: /* Linux/ARM 32-bit*/
|
| 699 |
|
|
/* pr_cursig */
|
| 700 |
|
|
elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
|
| 701 |
|
|
|
| 702 |
|
|
/* pr_pid */
|
| 703 |
|
|
elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
|
| 704 |
|
|
|
| 705 |
|
|
/* pr_reg */
|
| 706 |
|
|
offset = 72;
|
| 707 |
|
|
raw_size = 72;
|
| 708 |
|
|
|
| 709 |
|
|
break;
|
| 710 |
|
|
}
|
| 711 |
|
|
|
| 712 |
|
|
/* Make a ".reg/999" section. */
|
| 713 |
|
|
return _bfd_elfcore_make_pseudosection (abfd, ".reg",
|
| 714 |
|
|
raw_size, note->descpos + offset);
|
| 715 |
|
|
}
|
| 716 |
|
|
|
| 717 |
|
|
static boolean
|
| 718 |
|
|
elf32_arm_nabi_grok_psinfo (abfd, note)
|
| 719 |
|
|
bfd *abfd;
|
| 720 |
|
|
Elf_Internal_Note *note;
|
| 721 |
|
|
{
|
| 722 |
|
|
switch (note->descsz)
|
| 723 |
|
|
{
|
| 724 |
|
|
default:
|
| 725 |
|
|
return false;
|
| 726 |
|
|
|
| 727 |
|
|
case 124: /* Linux/ARM elf_prpsinfo */
|
| 728 |
|
|
elf_tdata (abfd)->core_program
|
| 729 |
|
|
= _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
|
| 730 |
|
|
elf_tdata (abfd)->core_command
|
| 731 |
|
|
= _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
|
| 732 |
|
|
}
|
| 733 |
|
|
|
| 734 |
|
|
/* Note that for some reason, a spurious space is tacked
|
| 735 |
|
|
onto the end of the args in some (at least one anyway)
|
| 736 |
|
|
implementations, so strip it off if it exists. */
|
| 737 |
|
|
|
| 738 |
|
|
{
|
| 739 |
|
|
char *command = elf_tdata (abfd)->core_command;
|
| 740 |
|
|
int n = strlen (command);
|
| 741 |
|
|
|
| 742 |
|
|
if (0 < n && command[n - 1] == ' ')
|
| 743 |
|
|
command[n - 1] = '\0';
|
| 744 |
|
|
}
|
| 745 |
|
|
|
| 746 |
|
|
return true;
|
| 747 |
|
|
}
|
| 748 |
|
|
|
| 749 |
|
|
#define elf_backend_grok_prstatus elf32_arm_nabi_grok_prstatus
|
| 750 |
|
|
#define elf_backend_grok_psinfo elf32_arm_nabi_grok_psinfo
|
| 751 |
|
|
|
| 752 |
|
|
#ifndef ELFARM_NABI_C_INCLUDED
|
| 753 |
|
|
#include "elf32-arm.h"
|
| 754 |
|
|
#endif
|
