1 /* Shared general utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986-2014 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
26 #include "gdb_assert.h"
29 /* The xmalloc() (libiberty.h) family of memory management routines.
31 These are like the ISO-C malloc() family except that they implement
32 consistent semantics and guard against typical memory management
35 /* NOTE: These are declared using PTR to ensure consistency with
36 "libiberty.h". xfree() is GDB local. */
43 /* See libiberty/xmalloc.c. This function need's to match that's
44 semantics. It never returns NULL. */
48 val = malloc (size); /* ARI: malloc */
50 malloc_failure (size);
56 xrealloc (PTR ptr, size_t size) /* ARI: PTR */
60 /* See libiberty/xmalloc.c. This function need's to match that's
61 semantics. It never returns NULL. */
66 val = realloc (ptr, size); /* ARI: realloc */
68 val = malloc (size); /* ARI: malloc */
70 malloc_failure (size);
76 xcalloc (size_t number, size_t size)
80 /* See libiberty/xmalloc.c. This function need's to match that's
81 semantics. It never returns NULL. */
82 if (number == 0 || size == 0)
88 mem = calloc (number, size); /* ARI: xcalloc */
90 malloc_failure (number * size);
98 return xcalloc (1, size);
105 free (ptr); /* ARI: free */
108 /* Like asprintf/vasprintf but get an internal_error if the call
112 xstrprintf (const char *format, ...)
117 va_start (args, format);
118 ret = xstrvprintf (format, args);
124 xstrvprintf (const char *format, va_list ap)
127 int status = vasprintf (&ret, format, ap);
129 /* NULL is returned when there was a memory allocation problem, or
130 any other error (for instance, a bad format string). A negative
131 status (the printed length) with a non-NULL buffer should never
132 happen, but just to be sure. */
133 if (ret == NULL || status < 0)
134 internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
139 xsnprintf (char *str, size_t size, const char *format, ...)
144 va_start (args, format);
145 ret = vsnprintf (str, size, format, args);
146 gdb_assert (ret < size);
153 savestring (const char *ptr, size_t len)
155 char *p = (char *) xmalloc (len + 1);
157 memcpy (p, ptr, len);