diff options
Diffstat (limited to 'bfd/elf32-arc.c')
| -rw-r--r-- | bfd/elf32-arc.c | 223 |
1 files changed, 119 insertions, 104 deletions
diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c index 318dc70..254b346 100644 --- a/bfd/elf32-arc.c +++ b/bfd/elf32-arc.c @@ -1,22 +1,22 @@ /* ARC-specific support for 32-bit ELF - Copyright (C) 1994, 1995, 1997, 1999 Free Software Foundation, Inc. + Copyright (C) 1994, 1995, 1997, 1999, 2000 Free Software Foundation, Inc. Contributed by Doug Evans (dje@cygnus.com). -This file is part of BFD, the Binary File Descriptor library. + 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 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. + 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. */ + 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" @@ -25,77 +25,80 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "elf/arc.h" static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); + 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)); +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 */ + 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 */ + 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 */ + 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 */ + 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 */ }; @@ -123,14 +126,11 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code) { unsigned int i; - for (i = 0; - i < sizeof (arc_reloc_map) / sizeof (struct arc_reloc_map); - 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; } @@ -155,21 +155,30 @@ static boolean arc_elf_object_p (abfd) bfd *abfd; { - int mach; - unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH; + int mach = bfd_mach_arc_5; - switch (arch) + if (elf_elfheader(abfd)->e_machine == EM_ARC) { - case E_ARC_MACH_BASE: - mach = bfd_mach_arc_base; - break; - default: - /* Unknown cpu type. ??? What to do? */ - return false; + unsigned long arch = elf_elfheader (abfd)->e_flags & EF_ARC_MACH; + + switch (arch) + { + default: + case E_ARC_MACH_ARC5: + mach = bfd_mach_arc_5; + break; + 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; + } } - - (void) bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach); - return true; + return bfd_default_set_arch_mach (abfd, bfd_arch_arc, mach); } /* The final processing done just before writing out an ARC ELF object file. @@ -180,34 +189,40 @@ arc_elf_final_write_processing (abfd, linker) bfd *abfd; boolean linker ATTRIBUTE_UNUSED; { - int mach; unsigned long val; - switch (mach = bfd_get_mach (abfd)) + switch (bfd_get_mach (abfd)) { - case bfd_mach_arc_base: - val = E_ARC_MACH_BASE; - break; default: - return; + case bfd_mach_arc_5: + val = E_ARC_MACH_ARC5; + break; + 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_CYGNUS_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 +#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" |