diff options
Diffstat (limited to 'bfd/elf32-h8300.c')
| -rw-r--r-- | bfd/elf32-h8300.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/bfd/elf32-h8300.c b/bfd/elf32-h8300.c new file mode 100644 index 0000000..c2474dd --- /dev/null +++ b/bfd/elf32-h8300.c @@ -0,0 +1,250 @@ +/* Generic support for 32-bit ELF + Copyright 1993, 1995, 1998, 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 "bfd.h" +#include "sysdep.h" +#include "libbfd.h" +#include "elf-bfd.h" +#include "elf/h8.h" + +static reloc_howto_type *elf32_h8_reloc_type_lookup + PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); +static void elf32_h8_info_to_howto + PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); + +/* This does not include any relocation information, but should be + good enough for GDB or objdump to read the file. */ + +static reloc_howto_type h8_elf_howto_table[] = +{ +#define R_H8_NONE_X 0 + HOWTO (R_H8_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 */ + NULL, /* special_function */ + "R_H8_NONE", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR32_X (R_H8_NONE_X + 1) + HOWTO (R_H8_DIR32, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR32", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR16_X (R_H8_DIR32_X + 1) + HOWTO (R_H8_DIR16, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR16", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR8_X (R_H8_DIR16_X + 1) + HOWTO (R_H8_DIR8, /* type */ + 0, /* rightshift */ + 0, /* size (0 = byte, 1 = short, 2 = long) */ + 8, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR16", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x000000ff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR16A8_X (R_H8_DIR8_X + 1) + HOWTO (R_H8_DIR16A8, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR16A8", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR16R8_X (R_H8_DIR16A8_X + 1) + HOWTO (R_H8_DIR16R8, /* type */ + 0, /* rightshift */ + 1, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR16R8", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0x0000ffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR24A8_X (R_H8_DIR16R8_X + 1) + HOWTO (R_H8_DIR24A8, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 24, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR24A8", /* name */ + true, /* partial_inplace */ + 0xff000000, /* src_mask */ + 0x00ffffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR24R8_X (R_H8_DIR24A8_X + 1) + HOWTO (R_H8_DIR24R8, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 24, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR24R8", /* name */ + true, /* partial_inplace */ + 0xff000000, /* src_mask */ + 0x00ffffff, /* dst_mask */ + false), /* pcrel_offset */ +#define R_H8_DIR32A16_X (R_H8_DIR24R8_X + 1) + HOWTO (R_H8_DIR32A16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 32, /* bitsize */ + false, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + NULL, /* special_function */ + "R_H8_DIR32", /* name */ + false, /* partial_inplace */ + 0, /* src_mask */ + 0xffffffff, /* dst_mask */ + false), /* pcrel_offset */ +}; + +/* This structure is used to map BFD reloc codes to H8 ELF relocs. */ + +struct elf_reloc_map +{ + bfd_reloc_code_real_type bfd_reloc_val; + unsigned char howto_index; +}; + +/* An array mapping BFD reloc codes to SH ELF relocs. */ + +static const struct elf_reloc_map h8_reloc_map[] = +{ + { BFD_RELOC_NONE, R_H8_NONE_X }, + { BFD_RELOC_32, R_H8_DIR32_X }, + { BFD_RELOC_16, R_H8_DIR16_X }, + { BFD_RELOC_8, R_H8_DIR8_X }, + { BFD_RELOC_H8_DIR16A8, R_H8_DIR16A8_X }, + { BFD_RELOC_H8_DIR16R8, R_H8_DIR16R8_X }, + { BFD_RELOC_H8_DIR24A8, R_H8_DIR24A8_X }, + { BFD_RELOC_H8_DIR24R8, R_H8_DIR24R8_X }, + { BFD_RELOC_H8_DIR32A16, R_H8_DIR32A16_X }, +}; + +static reloc_howto_type * +elf32_h8_reloc_type_lookup (abfd, code) + bfd *abfd ATTRIBUTE_UNUSED; + bfd_reloc_code_real_type code; +{ + unsigned int i; + + for (i = 0; i < sizeof (h8_reloc_map) / sizeof (struct elf_reloc_map); i++) + { + if (h8_reloc_map[i].bfd_reloc_val == code) + return &h8_elf_howto_table[(int) h8_reloc_map[i].howto_index]; + } + return NULL; +} + +static void +elf32_h8_info_to_howto (abfd, bfd_reloc, elf_reloc) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *bfd_reloc; + Elf32_Internal_Rela *elf_reloc ATTRIBUTE_UNUSED; +{ + unsigned int r; + unsigned int i; + + r = ELF32_R_TYPE (elf_reloc->r_info); + for (i = 0; i < sizeof (h8_elf_howto_table) / sizeof (reloc_howto_type); i++) + if (h8_elf_howto_table[i].type== r) + { + bfd_reloc->howto = &h8_elf_howto_table[i]; + return; + } + abort (); +} + +static void +elf32_h8_info_to_howto_rel (abfd, bfd_reloc, elf_reloc) + bfd *abfd ATTRIBUTE_UNUSED; + arelent *bfd_reloc; + Elf32_Internal_Rel *elf_reloc ATTRIBUTE_UNUSED; +{ + unsigned int r; + + abort (); + r = ELF32_R_TYPE (elf_reloc->r_info); + bfd_reloc->howto = &h8_elf_howto_table[r]; +} + +#define TARGET_BIG_SYM bfd_elf32_h8300_vec +#define TARGET_BIG_NAME "elf32-h8300" +#define ELF_ARCH bfd_arch_h8300 +#define ELF_MACHINE_CODE EM_H8_300 +#define ELF_MAXPAGESIZE 0x1 +#define bfd_elf32_bfd_reloc_type_lookup elf32_h8_reloc_type_lookup +#define elf_info_to_howto elf32_h8_info_to_howto +#define elf_info_to_howto_rel elf32_h8_info_to_howto_rel + +/* ??? when elf_backend_relocate_section is not defined, elf32-target.h + defaults to using _bfd_generic_link_hash_table_create, but + elflink.h:bfd_elf32_size_dynamic_sections uses + dynobj = elf_hash_table (info)->dynobj; + and thus requires an elf hash table. */ +#define bfd_elf32_bfd_link_hash_table_create _bfd_elf_link_hash_table_create + +#include "elf32-target.h" |