X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf64-mips.c;h=ad00a3db19b4a36e646080904fc3365f03b8a4e7;hb=e9e0a58e87c33963dda1800900c0e43b7c0213c0;hp=e64b50caed017f2d5274fd0084408862aaf9f51b;hpb=741d6ea85b096ca043859a71ae022ad160a64eec;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf64-mips.c b/bfd/elf64-mips.c index e64b50caed..ad00a3db19 100644 --- a/bfd/elf64-mips.c +++ b/bfd/elf64-mips.c @@ -5,21 +5,23 @@ Linker support added by Mark Mitchell, CodeSourcery, LLC. -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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ /* This file supports the 64-bit MIPS ELF ABI. @@ -1501,11 +1503,35 @@ static reloc_howto_type mips16_elf64_howto_table_rel[] = 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 reference to global offset table. */ - EMPTY_HOWTO (R_MIPS16_GOT16), + /* A MIPS16 reference to the global offset table. */ + HOWTO (R_MIPS16_GOT16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_got16_reloc, /* special_function */ + "R_MIPS16_GOT16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 16 bit call through global offset table. */ - EMPTY_HOWTO (R_MIPS16_CALL16), + /* A MIPS16 call through the global offset table. */ + HOWTO (R_MIPS16_CALL16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS16_CALL16", /* name */ + TRUE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ /* MIPS16 high 16 bits of symbol value. */ HOWTO (R_MIPS16_HI16, /* type */ @@ -1573,11 +1599,35 @@ static reloc_howto_type mips16_elf64_howto_table_rela[] = 0x0000ffff, /* dst_mask */ FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 reference to global offset table. */ - EMPTY_HOWTO (R_MIPS16_GOT16), + /* A MIPS16 reference to the global offset table. */ + HOWTO (R_MIPS16_GOT16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_got16_reloc, /* special_function */ + "R_MIPS16_GOT16", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ - /* A placeholder for MIPS16 16 bit call through global offset table. */ - EMPTY_HOWTO (R_MIPS16_CALL16), + /* A MIPS16 call through the global offset table. */ + HOWTO (R_MIPS16_CALL16, /* type */ + 0, /* rightshift */ + 2, /* size (0 = byte, 1 = short, 2 = long) */ + 16, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_dont, /* complain_on_overflow */ + _bfd_mips_elf_generic_reloc, /* special_function */ + "R_MIPS16_CALL16", /* name */ + FALSE, /* partial_inplace */ + 0x0000ffff, /* src_mask */ + 0x0000ffff, /* dst_mask */ + FALSE), /* pcrel_offset */ /* MIPS16 high 16 bits of symbol value. */ HOWTO (R_MIPS16_HI16, /* type */ @@ -1674,6 +1724,38 @@ static reloc_howto_type elf_mips_gnu_rela16_s2 = 0x0000ffff, /* dst_mask */ TRUE); /* pcrel_offset */ +/* Originally a VxWorks extension, but now used for other systems too. */ +static reloc_howto_type elf_mips_copy_howto = + HOWTO (R_MIPS_COPY, /* type */ + 0, /* rightshift */ + 0, /* this one is variable size */ + 0, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MIPS_COPY", /* name */ + FALSE, /* partial_inplace */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ + FALSE); /* pcrel_offset */ + +/* Originally a VxWorks extension, but now used for other systems too. */ +static reloc_howto_type elf_mips_jump_slot_howto = + HOWTO (R_MIPS_JUMP_SLOT, /* type */ + 0, /* rightshift */ + 4, /* size (0 = byte, 1 = short, 2 = long) */ + 64, /* bitsize */ + FALSE, /* pc_relative */ + 0, /* bitpos */ + complain_overflow_bitfield, /* complain_on_overflow */ + bfd_elf_generic_reloc, /* special_function */ + "R_MIPS_JUMP_SLOT", /* name */ + FALSE, /* partial_inplace */ + 0x0, /* src_mask */ + 0x0, /* dst_mask */ + FALSE); /* pcrel_offset */ + /* Swap in a MIPS 64-bit Rel reloc. */ static void @@ -2195,6 +2277,8 @@ static const struct elf_reloc_map mips16_reloc_map[] = { { BFD_RELOC_MIPS16_JMP, R_MIPS16_26 - R_MIPS16_min }, { BFD_RELOC_MIPS16_GPREL, R_MIPS16_GPREL - R_MIPS16_min }, + { BFD_RELOC_MIPS16_GOT16, R_MIPS16_GOT16 - R_MIPS16_min }, + { BFD_RELOC_MIPS16_CALL16, R_MIPS16_CALL16 - R_MIPS16_min }, { BFD_RELOC_MIPS16_HI16_S, R_MIPS16_HI16 - R_MIPS16_min }, { BFD_RELOC_MIPS16_LO16, R_MIPS16_LO16 - R_MIPS16_min }, }; @@ -2231,6 +2315,10 @@ bfd_elf64_bfd_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_vtinherit_howto; case BFD_RELOC_VTABLE_ENTRY: return &elf_mips_gnu_vtentry_howto; + case BFD_RELOC_MIPS_COPY: + return &elf_mips_copy_howto; + case BFD_RELOC_MIPS_JUMP_SLOT: + return &elf_mips_jump_slot_howto; default: bfd_set_error (bfd_error_bad_value); return NULL; @@ -2266,6 +2354,10 @@ bfd_elf64_bfd_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, return &elf_mips_gnu_rel16_s2; if (strcasecmp (elf_mips_gnu_rela16_s2.name, r_name) == 0) return &elf_mips_gnu_rela16_s2; + if (strcasecmp (elf_mips_copy_howto.name, r_name) == 0) + return &elf_mips_copy_howto; + if (strcasecmp (elf_mips_jump_slot_howto.name, r_name) == 0) + return &elf_mips_jump_slot_howto; return NULL; } @@ -2286,6 +2378,10 @@ mips_elf64_rtype_to_howto (unsigned int r_type, bfd_boolean rela_p) return &elf_mips_gnu_rela16_s2; else return &elf_mips_gnu_rel16_s2; + case R_MIPS_COPY: + return &elf_mips_copy_howto; + case R_MIPS_JUMP_SLOT: + return &elf_mips_jump_slot_howto; default: if (r_type >= R_MIPS16_min && r_type < R_MIPS16_max) { @@ -3068,6 +3164,7 @@ const struct elf_size_info mips_elf64_size_info = EV_CURRENT, bfd_elf64_write_out_phdrs, bfd_elf64_write_shdrs_and_ehdr, + bfd_elf64_checksum_contents, mips_elf64_write_relocs, bfd_elf64_swap_symbol_in, bfd_elf64_swap_symbol_out, @@ -3104,6 +3201,7 @@ const struct elf_size_info mips_elf64_size_info = #define elf_backend_check_relocs _bfd_mips_elf_check_relocs #define elf_backend_merge_symbol_attribute \ _bfd_mips_elf_merge_symbol_attribute +#define elf_backend_get_target_dtag _bfd_mips_elf_get_target_dtag #define elf_backend_adjust_dynamic_symbol \ _bfd_mips_elf_adjust_dynamic_symbol #define elf_backend_always_size_sections \ @@ -3125,7 +3223,6 @@ const struct elf_size_info mips_elf64_size_info = #define elf_backend_gc_sweep_hook _bfd_mips_elf_gc_sweep_hook #define elf_backend_copy_indirect_symbol \ _bfd_mips_elf_copy_indirect_symbol -#define elf_backend_hide_symbol _bfd_mips_elf_hide_symbol #define elf_backend_ignore_discarded_relocs \ _bfd_mips_elf_ignore_discarded_relocs #define elf_backend_mips_irix_compat elf64_mips_irix_compat @@ -3143,6 +3240,11 @@ const struct elf_size_info mips_elf64_size_info = #define elf_backend_may_use_rel_p 1 #define elf_backend_may_use_rela_p 1 #define elf_backend_default_use_rela_p 1 +#define elf_backend_rela_plts_and_copies_p 0 +#define elf_backend_plt_readonly 1 +#define elf_backend_plt_sym_val _bfd_mips_elf_plt_sym_val + +#define elf_backend_sign_extend_vma TRUE #define elf_backend_write_section _bfd_mips_elf_write_section @@ -3155,6 +3257,7 @@ const struct elf_size_info mips_elf64_size_info = #define bfd_elf64_set_section_contents _bfd_mips_elf_set_section_contents #define bfd_elf64_bfd_get_relocated_section_contents \ _bfd_elf_mips_get_relocated_section_contents +#define bfd_elf64_mkobject _bfd_mips_elf_mkobject #define bfd_elf64_bfd_link_hash_table_create \ _bfd_mips_elf_link_hash_table_create #define bfd_elf64_bfd_final_link _bfd_mips_elf_final_link