1  /* LoongArch-specific backend routines.
       2     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       3     Contributed by Loongson Ltd.
       4  
       5     This file is part of BFD, the Binary File Descriptor library.
       6  
       7     This program is free software; you can redistribute it and/or modify
       8     it under the terms of the GNU General Public License as published by
       9     the Free Software Foundation; either version 3 of the License, or
      10     (at your option) any later version.
      11  
      12     This program is distributed in the hope that it will be useful,
      13     but WITHOUT ANY WARRANTY; without even the implied warranty of
      14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      15     GNU General Public License for more details.
      16  
      17     You should have received a copy of the GNU General Public License
      18     along with this program; see the file COPYING3.  If not,
      19     see <http://www.gnu.org/licenses/>.  */
      20  
      21  #include "elf/common.h"
      22  #include "elf/internal.h"
      23  
      24  extern reloc_howto_type *
      25  loongarch_elf_rtype_to_howto (bfd *abfd, unsigned int r_type);
      26  
      27  extern reloc_howto_type *
      28  loongarch_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code);
      29  
      30  extern reloc_howto_type *
      31  loongarch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, const char *r_name);
      32  
      33  extern bfd_reloc_code_real_type
      34  loongarch_larch_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
      35  				   const char *l_r_name);
      36  
      37  bool
      38  loongarch_adjust_reloc_bitsfield (bfd *, reloc_howto_type *, bfd_vma *);
      39  void
      40  bfd_elf32_loongarch_set_data_segment_info (struct bfd_link_info *, int *);
      41  void
      42  bfd_elf64_loongarch_set_data_segment_info (struct bfd_link_info *, int *);
      43  
      44  bfd_byte *
      45  loongarch_write_unsigned_leb128 (bfd_byte *p, unsigned int len, bfd_vma value);
      46  
      47  int loongarch_get_uleb128_length (bfd_byte *buf);
      48  
      49  /* TRUE if this is a PLT reference to a local IFUNC.  */
      50  #define PLT_LOCAL_IFUNC_P(INFO, H) \
      51    ((H)->dynindx == -1 \
      52     || ((bfd_link_executable (INFO) \
      53  	|| ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT) \
      54  	&& (H)->def_regular \
      55  	&& (H)->type == STT_GNU_IFUNC))