diff options
Diffstat (limited to 'bfd/elf32-arc.c')
| -rw-r--r-- | bfd/elf32-arc.c | 210 |
1 files changed, 97 insertions, 113 deletions
diff --git a/bfd/elf32-arc.c b/bfd/elf32-arc.c index 4643e71..a6011bd 100644 --- a/bfd/elf32-arc.c +++ b/bfd/elf32-arc.c @@ -1,5 +1,5 @@ /* ARC-specific support for 32-bit ELF - Copyright 1994, 1995, 1997, 1999, 2001, 2002 + Copyright 1994, 1995, 1997, 1999, 2001, 2002, 2005 Free Software Foundation, Inc. Contributed by Doug Evans (dje@cygnus.com). @@ -17,7 +17,8 @@ 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ #include "bfd.h" #include "sysdep.h" @@ -26,83 +27,94 @@ #include "elf/arc.h" #include "libiberty.h" -static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup - PARAMS ((bfd *abfd, bfd_reloc_code_real_type code)); -static void arc_info_to_howto_rel - PARAMS ((bfd *, arelent *, Elf_Internal_Rela *)); -static bfd_boolean arc_elf_object_p - PARAMS ((bfd *)); -static void arc_elf_final_write_processing - PARAMS ((bfd *, bfd_boolean)); -static bfd_reloc_status_type arc_elf_b22_pcrel - PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); - /* 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 1 +static bfd_reloc_status_type +arc_elf_b22_pcrel (bfd * abfd, + arelent * reloc_entry, + asymbol * symbol, + void * data, + asection * input_section, + bfd * output_bfd, + char ** error_message) +{ + /* If linking, back up the final symbol address by the address of the + reloc. This cannot be accomplished by setting the pcrel_offset + field to TRUE, as bfd_install_relocation will detect this and refuse + to install the offset in the first place, but bfd_perform_relocation + will still insist on removing it. */ + if (output_bfd == NULL) + reloc_entry->addend -= reloc_entry->address; + + /* Fall through to the default elf reloc handler. */ + return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, + input_section, output_bfd, error_message); +} + 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 */ - TRUE, /* 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. */ + TRUE, /* 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 */ - TRUE, /* 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. */ + TRUE, /* 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 */ - TRUE, /* 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. */ + TRUE, /* 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 */ - arc_elf_b22_pcrel, /* special_function */ - "R_ARC_B22_PCREL", /* name */ - TRUE, /* partial_inplace */ - 0x07ffff80, /* src_mask */ - 0x07ffff80, /* dst_mask */ - FALSE), /* 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. */ + arc_elf_b22_pcrel, /* Special_function. */ + "R_ARC_B22_PCREL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0x07ffff80, /* Src_mask. */ + 0x07ffff80, /* Dst_mask. */ + FALSE), /* PCrel_offset. */ }; /* Map BFD reloc types to ARC ELF reloc types. */ @@ -123,9 +135,8 @@ static const struct arc_reloc_map arc_reloc_map[] = }; static reloc_howto_type * -bfd_elf32_bfd_reloc_type_lookup (abfd, code) - bfd *abfd ATTRIBUTE_UNUSED; - bfd_reloc_code_real_type code; +bfd_elf32_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, + bfd_reloc_code_real_type code) { unsigned int i; @@ -139,10 +150,9 @@ bfd_elf32_bfd_reloc_type_lookup (abfd, code) /* Set the howto pointer for an ARC ELF reloc. */ static void -arc_info_to_howto_rel (abfd, cache_ptr, dst) - bfd *abfd ATTRIBUTE_UNUSED; - arelent *cache_ptr; - Elf_Internal_Rela *dst; +arc_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, + arelent *cache_ptr, + Elf_Internal_Rela *dst) { unsigned int r_type; @@ -154,8 +164,7 @@ arc_info_to_howto_rel (abfd, cache_ptr, dst) /* Set the right machine number for an ARC ELF file. */ static bfd_boolean -arc_elf_object_p (abfd) - bfd *abfd; +arc_elf_object_p (bfd *abfd) { unsigned int mach = bfd_mach_arc_6; @@ -187,9 +196,8 @@ arc_elf_object_p (abfd) This gets the ARC architecture right based on the machine number. */ static void -arc_elf_final_write_processing (abfd, linker) - bfd *abfd; - bfd_boolean linker ATTRIBUTE_UNUSED; +arc_elf_final_write_processing (bfd *abfd, + bfd_boolean linker ATTRIBUTE_UNUSED) { unsigned long val; @@ -213,41 +221,17 @@ arc_elf_final_write_processing (abfd, linker) elf_elfheader (abfd)->e_flags |= val; } -bfd_reloc_status_type -arc_elf_b22_pcrel (abfd, reloc_entry, symbol, data, input_section, - output_bfd, error_message) - bfd * abfd; - arelent * reloc_entry; - asymbol * symbol; - PTR data; - asection * input_section; - bfd * output_bfd; - char ** error_message; -{ - /* If linking, back up the final symbol address by the address of the - reloc. This cannot be accomplished by setting the pcrel_offset - field to TRUE, as bfd_install_relocation will detect this and refuse - to install the offset in the first place, but bfd_perform_relocation - will still insist on removing it. */ - if (output_bfd == (bfd *) NULL) - reloc_entry->addend -= reloc_entry->address; - - /* Fall through to the default elf reloc handler. */ - return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, - input_section, output_bfd, error_message); -} - -#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 +#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" |