sdcc/support/cpp/gcc/ggc-none.cc

   1 /* Null garbage collection for the GNU compiler.
   2    Copyright (C) 1998-2022 Free Software Foundation, Inc.
   3
   4    This file is part of GCC.
   5
   6    GCC is free software; you can redistribute it and/or modify it
   7    under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    GCC is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with GCC; see the file COPYING3.  If not see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 /* This version is used by the gen* programs and certain language-specific
  21    targets (such as java), where we don't really need GC at all.
  22    This prevents problems with pulling in all the tree stuff.  */
  23
  24 #ifdef GENERATOR_FILE
  25 #include "bconfig.h"
  26 #else
  27 #include "config.h"
  28 #endif
  29
  30 #include "system.h"
  31 #include "coretypes.h"
  32 #include "hash-table.h"
  33 #include <cassert>
  34
  35 /* For a given size of memory requested for allocation, return the
  36    actual size that is going to be allocated.  */
  37
  38 size_t
  39 ggc_round_alloc_size (size_t requested_size)
  40 {
  41   return requested_size;
  42 }
  43
  44 void *
  45 ggc_internal_alloc (size_t size, void (*f)(void *), size_t, size_t
  46                     MEM_STAT_DECL)
  47 {
  48         assert(!f);
  49   gcc_assert (!f); // ggc-none doesn't support finalizers
  50   return xmalloc (size);
  51 }
  52
  53 void *
  54 ggc_internal_cleared_alloc (size_t size, void (*f)(void *), size_t, size_t
  55                             MEM_STAT_DECL)
  56 {
  57   gcc_assert (!f); // ggc-none doesn't support finalizers
  58   return xcalloc (size, 1);
  59 }
  60
  61 void *
  62 ggc_realloc_stat (void *x, size_t size MEM_STAT_DECL)
  63 {
  64   return xrealloc (x, size);
  65 }
  66
  67 void
  68 ggc_free (void *p)
  69 {
  70   free (p);
  71 }
  72
  73 void
  74 ggc_grow (void)
  75 {
  76 }
  77
  78 void
  79 ggc_trim (void)
  80 {
  81 }