gdbsupport/gdb-hashtab.cc

   1 /* Hash table wrappers for gdb.
   2    Copyright (C) 2021-2023 Free Software Foundation, Inc.
   3
   4    This file is part of GDB.
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include "common-defs.h"
  20 #include "gdb-hashtab.h"
  21
  22 /* Allocation function for the libiberty hash table which uses an
  23    obstack.  The obstack is passed as DATA.  */
  24
  25 void *
  26 hashtab_obstack_allocate (void *data, size_t size, size_t count)
  27 {
  28   size_t total = size * count;
  29   void *ptr = obstack_alloc ((struct obstack *) data, total);
  30
  31   memset (ptr, 0, total);
  32   return ptr;
  33 }
  34
  35 /* Trivial deallocation function for the libiberty splay tree and hash
  36    table - don't deallocate anything.  Rely on later deletion of the
  37    obstack.  DATA will be the obstack, although it is not needed
  38    here.  */
  39
  40 void
  41 dummy_obstack_deallocate (void *object, void *data)
  42 {
  43   return;
  44 }