1 /* Shared general utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
5 2009, 2010, 2011 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
28 #include "gdb_assert.h"
33 /* The xmalloc() (libiberty.h) family of memory management routines.
35 These are like the ISO-C malloc() family except that they implement
36 consistent semantics and guard against typical memory management
39 /* NOTE: These are declared using PTR to ensure consistency with
40 "libiberty.h". xfree() is GDB local. */
47 /* See libiberty/xmalloc.c. This function need's to match that's
48 semantics. It never returns NULL. */
52 val
= malloc (size
); /* ARI: malloc */
54 malloc_failure (size
);
60 xrealloc (PTR ptr
, size_t size
) /* ARI: PTR */
64 /* See libiberty/xmalloc.c. This function need's to match that's
65 semantics. It never returns NULL. */
70 val
= realloc (ptr
, size
); /* ARI: realloc */
72 val
= malloc (size
); /* ARI: malloc */
74 malloc_failure (size
);
80 xcalloc (size_t number
, size_t size
)
84 /* See libiberty/xmalloc.c. This function need's to match that's
85 semantics. It never returns NULL. */
86 if (number
== 0 || size
== 0)
92 mem
= calloc (number
, size
); /* ARI: xcalloc */
94 malloc_failure (number
* size
);
100 xzalloc (size_t size
)
102 return xcalloc (1, size
);
109 free (ptr
); /* ARI: free */
112 /* Like asprintf/vasprintf but get an internal_error if the call
116 xstrprintf (const char *format
, ...)
121 va_start (args
, format
);
122 ret
= xstrvprintf (format
, args
);
128 xstrvprintf (const char *format
, va_list ap
)
131 int status
= vasprintf (&ret
, format
, ap
);
133 /* NULL is returned when there was a memory allocation problem, or
134 any other error (for instance, a bad format string). A negative
135 status (the printed length) with a non-NULL buffer should never
136 happen, but just to be sure. */
137 if (ret
== NULL
|| status
< 0)
138 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
143 xasprintf (char **ret
, const char *format
, ...)
147 va_start (args
, format
);
148 (*ret
) = xstrvprintf (format
, args
);
153 xvasprintf (char **ret
, const char *format
, va_list ap
)
155 (*ret
) = xstrvprintf (format
, ap
);
159 xsnprintf (char *str
, size_t size
, const char *format
, ...)
164 va_start (args
, format
);
165 ret
= vsnprintf (str
, size
, format
, args
);
166 gdb_assert (ret
< size
);