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/* Shared allocation functions for GDB, the GNU debugger.
Copyright (C) 1986-2024 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* This file is unusual.
Because both libiberty and readline define xmalloc and friends, the
functions in this file can't appear in a library -- that will cause
link errors.
And, because we want to turn the common code into a library, this
file can't live there.
So, it lives in gdb and is built separately by gdb and gdbserver.
Please be aware of this when modifying it. */
#include "libiberty.h"
#include "gdbsupport/errors.h"
/* The xmalloc() (libiberty.h) family of memory management routines.
These are like the ISO-C malloc() family except that they implement
consistent semantics and guard against typical memory management
problems. */
void *
xmalloc (size_t size)
{
void *val;
/* See libiberty/xmalloc.c. This function need's to match that's
semantics. It never returns NULL. */
if (size == 0)
size = 1;
val = malloc (size); /* ARI: malloc */
if (val == NULL)
malloc_failure (size);
return val;
}
void *
xrealloc (void *ptr, size_t size)
{
void *val;
/* See libiberty/xmalloc.c. This function need's to match that's
semantics. It never returns NULL. */
if (size == 0)
size = 1;
if (ptr != NULL)
val = realloc (ptr, size); /* ARI: realloc */
else
val = malloc (size); /* ARI: malloc */
if (val == NULL)
malloc_failure (size);
return val;
}
void *
xcalloc (size_t number, size_t size)
{
void *mem;
/* See libiberty/xmalloc.c. This function need's to match that's
semantics. It never returns NULL. */
if (number == 0 || size == 0)
{
number = 1;
size = 1;
}
mem = calloc (number, size); /* ARI: xcalloc */
if (mem == NULL)
malloc_failure (number * size);
return mem;
}
void
xmalloc_failed (size_t size)
{
malloc_failure (size);
}
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