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- /* Shared allocation functions for GDB, the GNU debugger.
- Copyright (C) 1986-2022 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.
- This also explains why this file includes common-defs.h and not
- defs.h or server.h -- we'd prefer to avoid depending on the
- GDBSERVER define when possible, and for this file it seemed
- simple to do so. */
- #include "gdbsupport/common-defs.h"
- #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. */
- /* NOTE: These are declared using PTR to ensure consistency with
- "libiberty.h". xfree() is GDB local. */
- PTR /* ARI: PTR */
- 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;
- }
- PTR /* ARI: PTR */
- xrealloc (PTR ptr, size_t size) /* ARI: PTR */
- {
- 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;
- }
- PTR /* ARI: PTR */
- 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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