bfd/libelf.h

   1 /* BFD back-end data structures for ELF files.
   2    Copyright (C) 1992, 1993 Free Software Foundation, Inc.
   3    Written by Cygnus Support.
   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 2 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; if not, write to the Free Software
  19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  20
  21 #ifndef _LIBELF_H_
  22 #define _LIBELF_H_ 1
  23
  24 #include "elf/common.h"
  25 #include "elf/internal.h"
  26 #include "elf/external.h"
  27
  28 typedef struct
  29 {
  30   asymbol symbol;
  31   Elf_Internal_Sym internal_elf_sym;
  32   Elf_External_Sym native_elf_sym;
  33   /* these are used for the generation of .stabX symbols (?) */
  34   short desc;
  35   unsigned char type;
  36   char other;
  37 } elf_symbol_type;
  38
  39 struct elf_backend_data {
  40   void (*elf_info_to_howto) PARAMS ((bfd *, arelent *, Elf_Internal_Rela *));
  41   enum bfd_architecture arch;
  42
  43   /* @@ I really don't think this should be here.  I don't know what
  44      global_sym is supposed to be used for, but I doubt it's something
  45      that would be considered global, e.g., if you've got a program
  46      reading and writing many BFDs.  My hunch is that it's specific to
  47      the output BFD.  If not, put a comment here explaining why.  */
  48   elf_symbol_type *global_sym;
  49 };
  50
  51 extern bfd_target *elf_object_p PARAMS ((bfd *));
  52 extern bfd_target *elf_core_file_p PARAMS ((bfd *));
  53 extern boolean elf_mkobject PARAMS ((bfd *));
  54 extern boolean elf_write_object_contents PARAMS ((bfd *));
  55 extern char *elf_core_file_failing_command PARAMS ((bfd *));
  56 extern int elf_core_file_failing_signal PARAMS ((bfd *));
  57 extern boolean elf_core_file_matches_executable_p PARAMS ((bfd *, bfd *));
  58 extern boolean elf_set_section_contents PARAMS ((bfd *, sec_ptr, PTR,
  59                                                  file_ptr, bfd_size_type));
  60 extern unsigned int elf_get_symtab_upper_bound PARAMS ((bfd *));
  61 extern unsigned int elf_get_symtab PARAMS ((bfd *, asymbol **));
  62 extern unsigned int elf_get_reloc_upper_bound PARAMS ((bfd *, sec_ptr));
  63 extern unsigned int elf_canonicalize_reloc PARAMS ((bfd *, sec_ptr,
  64                                                     arelent **, asymbol **));
  65 extern asymbol *elf_make_empty_symbol PARAMS ((bfd *));
  66 extern void elf_print_symbol PARAMS ((bfd *, PTR, asymbol *,
  67                                       bfd_print_symbol_type));
  68 extern void elf_get_symbol_info PARAMS ((bfd *, asymbol *,
  69                                          symbol_info *));
  70 extern alent *elf_get_lineno PARAMS ((bfd *, asymbol *));
  71 extern boolean elf_set_arch_mach PARAMS ((bfd *, enum bfd_architecture,
  72                                           unsigned long));
  73 extern boolean elf_find_nearest_line PARAMS ((bfd *, asection *, asymbol **,
  74                                               bfd_vma, CONST char **,
  75                                               CONST char **, unsigned int *));
  76 extern int elf_sizeof_headers PARAMS ((bfd *, boolean));
  77
  78 /* If the target doesn't have reloc handling written yet:  */
  79 extern void elf_no_info_to_howto PARAMS ((bfd *, arelent *,
  80                                           Elf_Internal_Rela *));
  81
  82 #endif /* _LIBELF_H_ */