diff options
Diffstat (limited to 'bfd/elfarm-oabi.c')
| -rw-r--r-- | bfd/elfarm-oabi.c | 381 |
1 files changed, 381 insertions, 0 deletions
diff --git a/bfd/elfarm-oabi.c b/bfd/elfarm-oabi.c new file mode 100644 index 00000000000..f219b92ea7b --- /dev/null +++ b/bfd/elfarm-oabi.c @@ -0,0 +1,381 @@ +/* 32-bit ELF support for ARM old abi option. + Copyright 1999 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-oabi.h" +#include "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "elf-bfd.h" + +#define USE_RELA + +#define TARGET_LITTLE_SYM bfd_elf32_littlearm_oabi_vec +#define TARGET_LITTLE_NAME "elf32-littlearm-oabi" +#define TARGET_BIG_SYM bfd_elf32_bigarm_oabi_vec +#define TARGET_BIG_NAME "elf32-bigarm-oabi" + +#define elf_info_to_howto elf32_arm_info_to_howto +#define elf_info_to_howto_rel 0 + +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_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 */ + + /* 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 */ + + 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_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_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 */ + + /* 12 bit pc relative */ + 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 */ + 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 */ + + /* GNU extension to record C++ vtable hierarchy */ + 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 */ + 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 */ + + + 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 */ + +}; + +static void +elf32_arm_info_to_howto (abfd, bfd_reloc, elf_reloc) + bfd *abfd; + arelent *bfd_reloc; + Elf32_Internal_Rela *elf_reloc; +{ + unsigned int r_type; + + r_type = ELF32_R_TYPE (elf_reloc->r_info); + /* fixme: need range test */ + /* BFD_ASSERT (r_type < (unsigned int) R_ELF32_ARM_MAX); */ + bfd_reloc->howto = &elf32_arm_howto_table[r_type]; +} + +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_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_VTABLE_INHERIT, R_ARM_GNU_VTINHERIT }, + {BFD_RELOC_VTABLE_ENTRY, R_ARM_GNU_VTENTRY }, + {BFD_RELOC_NONE, R_ARM_SBREL32,}, + {BFD_RELOC_NONE, R_ARM_AMP_VCALL9,}, + {BFD_RELOC_THUMB_PCREL_BRANCH12, R_ARM_THM_PC11,}, + {BFD_RELOC_THUMB_PCREL_BRANCH9, R_ARM_THM_PC9,} +}; + +static reloc_howto_type * +elf32_arm_reloc_type_lookup (abfd, code) + bfd * abfd; + bfd_reloc_code_real_type code; +{ + unsigned int i; + + for (i = 0; + i < sizeof (elf32_arm_reloc_map) / sizeof (struct 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; +} + +#define bfd_elf32_arm_allocate_interworking_sections \ + bfd_elf32_arm_oabi_allocate_interworking_sections +#define bfd_elf32_arm_get_bfd_for_interworking \ + bfd_elf32_arm_oabi_get_bfd_for_interworking +#define bfd_elf32_arm_process_before_allocation \ + bfd_elf32_arm_oabi_process_before_allocation + +#include "elf32-arm.h" |