mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-27 20:14:06 +08:00
678 lines
22 KiB
C
678 lines
22 KiB
C
/* 32-bit ELF support for ARM new abi option.
|
|
Copyright 1999, 2000, 2001 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 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 "elf/arm.h"
|
|
#include "bfd.h"
|
|
#include "sysdep.h"
|
|
#include "libbfd.h"
|
|
#include "elf-bfd.h"
|
|
|
|
#ifndef NUM_ELEM
|
|
#define NUM_ELEM(a) (sizeof (a) / (sizeof (a)[0]))
|
|
#endif
|
|
|
|
#define USE_REL
|
|
|
|
#define TARGET_LITTLE_SYM bfd_elf32_littlearm_vec
|
|
#define TARGET_LITTLE_NAME "elf32-littlearm"
|
|
#define TARGET_BIG_SYM bfd_elf32_bigarm_vec
|
|
#define TARGET_BIG_NAME "elf32-bigarm"
|
|
|
|
#define elf_info_to_howto 0
|
|
#define elf_info_to_howto_rel elf32_arm_info_to_howto
|
|
|
|
#define ARM_ELF_ABI_VERSION 0
|
|
#define ARM_ELF_OS_ABI_VERSION ELFOSABI_ARM
|
|
|
|
static reloc_howto_type * elf32_arm_reloc_type_lookup
|
|
PARAMS ((bfd * abfd, bfd_reloc_code_real_type code));
|
|
|
|
/* Note: code such as elf32_arm_reloc_type_lookup expect to use e.g.
|
|
R_ARM_PC24 as an index into this, and find the R_ARM_PC24 HOWTO
|
|
in that slot. */
|
|
|
|
static reloc_howto_type elf32_arm_howto_table[] =
|
|
{
|
|
/* No relocation */
|
|
HOWTO (R_ARM_NONE, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_NONE", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_PC24, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
24, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_PC24", /* name */
|
|
false, /* partial_inplace */
|
|
0x00ffffff, /* src_mask */
|
|
0x00ffffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* 32 bit absolute */
|
|
HOWTO (R_ARM_ABS32, /* 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_ARM_ABS32", /* name */
|
|
false, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* standard 32bit pc-relative reloc */
|
|
HOWTO (R_ARM_REL32, /* type */
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
32, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_REL32", /* name */
|
|
false, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* 8 bit absolute */
|
|
HOWTO (R_ARM_PC13, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_PC13", /* name */
|
|
false, /* partial_inplace */
|
|
0x000000ff, /* src_mask */
|
|
0x000000ff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* 16 bit absolute */
|
|
HOWTO (R_ARM_ABS16, /* type */
|
|
0, /* rightshift */
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
|
16, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_ABS16", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* 12 bit absolute */
|
|
HOWTO (R_ARM_ABS12, /* type */
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
12, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_ABS12", /* name */
|
|
false, /* partial_inplace */
|
|
0x000008ff, /* src_mask */
|
|
0x000008ff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_THM_ABS5, /* type */
|
|
6, /* rightshift */
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
|
5, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_THM_ABS5", /* name */
|
|
false, /* partial_inplace */
|
|
0x000007e0, /* src_mask */
|
|
0x000007e0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* 8 bit absolute */
|
|
HOWTO (R_ARM_ABS8, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
8, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_ABS8", /* name */
|
|
false, /* partial_inplace */
|
|
0x000000ff, /* src_mask */
|
|
0x000000ff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_SBREL32, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_SBREL32", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_THM_PC22, /* type */
|
|
1, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
23, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_THM_PC22", /* name */
|
|
false, /* partial_inplace */
|
|
0x07ff07ff, /* src_mask */
|
|
0x07ff07ff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_THM_PC8, /* type */
|
|
1, /* rightshift */
|
|
1, /* 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_ARM_THM_PC8", /* name */
|
|
false, /* partial_inplace */
|
|
0x000000ff, /* src_mask */
|
|
0x000000ff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_AMP_VCALL9, /* type */
|
|
1, /* rightshift */
|
|
1, /* 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_ARM_AMP_VCALL9", /* name */
|
|
false, /* partial_inplace */
|
|
0x000000ff, /* src_mask */
|
|
0x000000ff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_SWI24, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_SWI24", /* name */
|
|
false, /* partial_inplace */
|
|
0x00000000, /* src_mask */
|
|
0x00000000, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_THM_SWI8, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_SWI8", /* name */
|
|
false, /* partial_inplace */
|
|
0x00000000, /* src_mask */
|
|
0x00000000, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* BLX instruction for the ARM. */
|
|
HOWTO (R_ARM_XPC25, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
25, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_XPC25", /* name */
|
|
false, /* partial_inplace */
|
|
0x00ffffff, /* src_mask */
|
|
0x00ffffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* BLX instruction for the Thumb. */
|
|
HOWTO (R_ARM_THM_XPC22, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
22, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_THM_XPC22", /* name */
|
|
false, /* partial_inplace */
|
|
0x07ff07ff, /* src_mask */
|
|
0x07ff07ff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* These next three relocs are not defined, but we need to fill the space. */
|
|
|
|
HOWTO (R_ARM_NONE, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_unknown_17", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_NONE, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_unknown_18", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_NONE, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_unknown_19", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
/* Relocs used in ARM Linux */
|
|
|
|
HOWTO (R_ARM_COPY, /* 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_ARM_COPY", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_GLOB_DAT, /* 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_ARM_GLOB_DAT", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_JUMP_SLOT, /* 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_ARM_JUMP_SLOT", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_RELATIVE, /* 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_ARM_RELATIVE", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_GOTOFF, /* 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_ARM_GOTOFF", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_GOTPC, /* type */
|
|
0, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
32, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_GOTPC", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_GOT32, /* 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_ARM_GOT32", /* name */
|
|
true, /* partial_inplace */
|
|
0xffffffff, /* src_mask */
|
|
0xffffffff, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_PLT32, /* type */
|
|
2, /* rightshift */
|
|
2, /* size (0 = byte, 1 = short, 2 = long) */
|
|
26, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_bitfield,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_PLT32", /* name */
|
|
true, /* partial_inplace */
|
|
0x00ffffff, /* src_mask */
|
|
0x00ffffff, /* dst_mask */
|
|
true), /* pcrel_offset */
|
|
|
|
/* End of relocs used in ARM Linux */
|
|
|
|
HOWTO (R_ARM_RREL32, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_RREL32", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_RABS32, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_RABS32", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_RPC24, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_RPC24", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
HOWTO (R_ARM_RBASE, /* type */
|
|
0, /* rightshift */
|
|
0, /* size (0 = byte, 1 = short, 2 = long) */
|
|
0, /* bitsize */
|
|
false, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_dont,/* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_RBASE", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false), /* pcrel_offset */
|
|
|
|
};
|
|
|
|
/* GNU extension to record C++ vtable hierarchy */
|
|
static reloc_howto_type elf32_arm_vtinherit_howto =
|
|
HOWTO (R_ARM_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_ARM_GNU_VTINHERIT", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false); /* pcrel_offset */
|
|
|
|
/* GNU extension to record C++ vtable member usage */
|
|
static reloc_howto_type elf32_arm_vtentry_howto =
|
|
HOWTO (R_ARM_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_ARM_GNU_VTENTRY", /* name */
|
|
false, /* partial_inplace */
|
|
0, /* src_mask */
|
|
0, /* dst_mask */
|
|
false); /* pcrel_offset */
|
|
|
|
/* 12 bit pc relative */
|
|
static reloc_howto_type elf32_arm_thm_pc11_howto =
|
|
HOWTO (R_ARM_THM_PC11, /* type */
|
|
1, /* rightshift */
|
|
1, /* size (0 = byte, 1 = short, 2 = long) */
|
|
11, /* bitsize */
|
|
true, /* pc_relative */
|
|
0, /* bitpos */
|
|
complain_overflow_signed, /* complain_on_overflow */
|
|
bfd_elf_generic_reloc, /* special_function */
|
|
"R_ARM_THM_PC11", /* name */
|
|
false, /* partial_inplace */
|
|
0x000007ff, /* src_mask */
|
|
0x000007ff, /* dst_mask */
|
|
true); /* pcrel_offset */
|
|
|
|
/* 12 bit pc relative */
|
|
static reloc_howto_type elf32_arm_thm_pc9_howto =
|
|
HOWTO (R_ARM_THM_PC9, /* type */
|
|
1, /* rightshift */
|
|
1, /* 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_ARM_THM_PC9", /* name */
|
|
false, /* partial_inplace */
|
|
0x000000ff, /* src_mask */
|
|
0x000000ff, /* dst_mask */
|
|
true); /* pcrel_offset */
|
|
|
|
static void
|
|
elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc)
|
|
bfd * abfd ATTRIBUTE_UNUSED;
|
|
arelent * bfd_reloc;
|
|
Elf32_Internal_Rel * elf_reloc;
|
|
{
|
|
unsigned int r_type;
|
|
|
|
r_type = ELF32_R_TYPE (elf_reloc->r_info);
|
|
|
|
switch (r_type)
|
|
{
|
|
case R_ARM_GNU_VTINHERIT:
|
|
bfd_reloc->howto = & elf32_arm_vtinherit_howto;
|
|
break;
|
|
|
|
case R_ARM_GNU_VTENTRY:
|
|
bfd_reloc->howto = & elf32_arm_vtentry_howto;
|
|
break;
|
|
|
|
case R_ARM_THM_PC11:
|
|
bfd_reloc->howto = & elf32_arm_thm_pc11_howto;
|
|
break;
|
|
|
|
case R_ARM_THM_PC9:
|
|
bfd_reloc->howto = & elf32_arm_thm_pc9_howto;
|
|
break;
|
|
|
|
default:
|
|
if (r_type >= NUM_ELEM (elf32_arm_howto_table))
|
|
bfd_reloc->howto = NULL;
|
|
else
|
|
bfd_reloc->howto = & elf32_arm_howto_table[r_type];
|
|
break;
|
|
}
|
|
}
|
|
|
|
struct elf32_arm_reloc_map
|
|
{
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
|
unsigned char elf_reloc_val;
|
|
};
|
|
|
|
static const struct elf32_arm_reloc_map elf32_arm_reloc_map[] =
|
|
{
|
|
{BFD_RELOC_NONE, R_ARM_NONE},
|
|
{BFD_RELOC_ARM_PCREL_BRANCH, R_ARM_PC24},
|
|
{BFD_RELOC_ARM_PCREL_BLX, R_ARM_XPC25},
|
|
{BFD_RELOC_THUMB_PCREL_BLX, R_ARM_THM_XPC22},
|
|
{BFD_RELOC_32, R_ARM_ABS32},
|
|
{BFD_RELOC_32_PCREL, R_ARM_REL32},
|
|
{BFD_RELOC_8, R_ARM_ABS8},
|
|
{BFD_RELOC_16, R_ARM_ABS16},
|
|
{BFD_RELOC_ARM_OFFSET_IMM, R_ARM_ABS12},
|
|
{BFD_RELOC_ARM_THUMB_OFFSET, R_ARM_THM_ABS5},
|
|
{BFD_RELOC_THUMB_PCREL_BRANCH23, R_ARM_THM_PC22},
|
|
{BFD_RELOC_ARM_COPY, R_ARM_COPY},
|
|
{BFD_RELOC_ARM_GLOB_DAT, R_ARM_GLOB_DAT},
|
|
{BFD_RELOC_ARM_JUMP_SLOT, R_ARM_JUMP_SLOT},
|
|
{BFD_RELOC_ARM_RELATIVE, R_ARM_RELATIVE},
|
|
{BFD_RELOC_ARM_GOTOFF, R_ARM_GOTOFF},
|
|
{BFD_RELOC_ARM_GOTPC, R_ARM_GOTPC},
|
|
{BFD_RELOC_ARM_GOT32, R_ARM_GOT32},
|
|
{BFD_RELOC_ARM_PLT32, R_ARM_PLT32}
|
|
};
|
|
|
|
static reloc_howto_type *
|
|
elf32_arm_reloc_type_lookup (abfd, code)
|
|
bfd *abfd ATTRIBUTE_UNUSED;
|
|
bfd_reloc_code_real_type code;
|
|
{
|
|
unsigned int i;
|
|
|
|
switch (code)
|
|
{
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
|
return & elf32_arm_vtinherit_howto;
|
|
|
|
case BFD_RELOC_VTABLE_ENTRY:
|
|
return & elf32_arm_vtentry_howto;
|
|
|
|
case BFD_RELOC_THUMB_PCREL_BRANCH12:
|
|
return & elf32_arm_thm_pc11_howto;
|
|
|
|
case BFD_RELOC_THUMB_PCREL_BRANCH9:
|
|
return & elf32_arm_thm_pc9_howto;
|
|
|
|
default:
|
|
for (i = 0; i < NUM_ELEM (elf32_arm_reloc_map); i ++)
|
|
if (elf32_arm_reloc_map[i].bfd_reloc_val == code)
|
|
return & elf32_arm_howto_table[elf32_arm_reloc_map[i].elf_reloc_val];
|
|
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
#include "elf32-arm.h"
|