/* Memory management routines.
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/* Memory management routines.
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Copyright 2002, 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
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Copyright 2002, 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
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Contributed by Paul Brook <paul@nowt.org>
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Contributed by Paul Brook <paul@nowt.org>
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This file is part of the GNU Fortran runtime library (libgfortran).
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This file is part of the GNU Fortran runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or
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Libgfortran is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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version 3 of the License, or (at your option) any later version.
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Libgfortran is distributed in the hope that it will be useful,
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#include "libgfortran.h"
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#include "libgfortran.h"
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#include <stdlib.h>
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#include <stdlib.h>
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/* If GFC_CLEAR_MEMORY is defined, the memory allocation routines will
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/* If GFC_CLEAR_MEMORY is defined, the memory allocation routines will
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return memory that is guaranteed to be set to zero. This can have
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return memory that is guaranteed to be set to zero. This can have
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a severe efficiency penalty, so it should never be set if good
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a severe efficiency penalty, so it should never be set if good
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performance is desired, but it can help when you're debugging code. */
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performance is desired, but it can help when you're debugging code. */
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/* #define GFC_CLEAR_MEMORY */
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/* #define GFC_CLEAR_MEMORY */
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void *
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void *
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get_mem (size_t n)
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get_mem (size_t n)
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{
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{
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void *p;
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void *p;
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#ifdef GFC_CLEAR_MEMORY
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#ifdef GFC_CLEAR_MEMORY
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p = (void *) calloc (1, n);
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p = (void *) calloc (1, n);
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#else
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#else
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p = (void *) malloc (n);
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p = (void *) malloc (n);
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#endif
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#endif
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if (p == NULL)
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if (p == NULL)
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os_error ("Memory allocation failed");
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os_error ("Memory allocation failed");
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return p;
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return p;
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}
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}
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/* Allocate memory for internal (compiler generated) use. */
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/* Allocate memory for internal (compiler generated) use. */
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void *
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void *
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internal_malloc_size (size_t size)
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internal_malloc_size (size_t size)
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{
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{
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if (unlikely (size == 0))
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if (unlikely (size == 0))
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size = 1;
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size = 1;
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return get_mem (size);
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return get_mem (size);
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}
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}
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