gdb/solib-null.c

   1 /* Definitions for targets without shared libraries for GDB, the GNU Debugger.
   2
   3    Copyright (C) 2004, 2007 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   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.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "solist.h"
  22
  23 static struct so_list *
  24 null_current_sos (void)
  25 {
  26   return NULL;
  27 }
  28
  29 static void
  30 null_special_symbol_handling (void)
  31 {
  32 }
  33
  34 static void
  35 null_solib_create_inferior_hook (void)
  36 {
  37 }
  38
  39 static void
  40 null_clear_solib (void)
  41 {
  42 }
  43
  44 static void
  45 null_free_so (struct so_list *so)
  46 {
  47   xfree (so->lm_info);
  48 }
  49
  50
  51 static void
  52 null_relocate_section_addresses (struct so_list *so,
  53                                  struct section_table *sec)
  54 {
  55 }
  56
  57 static int
  58 null_open_symbol_file_object (void *from_ttyp)
  59 {
  60   return 0;
  61 }
  62
  63 static int
  64 null_in_dynsym_resolve_code (CORE_ADDR pc)
  65 {
  66   return 0;
  67 }
  68
  69 static struct target_so_ops null_so_ops;
  70
  71 extern initialize_file_ftype _initialize_null_solib; /* -Wmissing-prototypes */
  72
  73 void
  74 _initialize_null_solib (void)
  75 {
  76   null_so_ops.relocate_section_addresses = null_relocate_section_addresses;
  77   null_so_ops.free_so = null_free_so;
  78   null_so_ops.clear_solib = null_clear_solib;
  79   null_so_ops.solib_create_inferior_hook = null_solib_create_inferior_hook;
  80   null_so_ops.special_symbol_handling = null_special_symbol_handling;
  81   null_so_ops.current_sos = null_current_sos;
  82   null_so_ops.open_symbol_file_object = null_open_symbol_file_object;
  83   null_so_ops.in_dynsym_resolve_code = null_in_dynsym_resolve_code;
  84
  85   /* Set current_target_so_ops to null_so_ops if not already set.  */
  86   if (current_target_so_ops == 0)
  87     current_target_so_ops = &null_so_ops;
  88 }