1 /* Obstack wrapper for GDB.
3 Copyright (C) 2002-2017 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/>. */
20 #if !defined (GDB_OBSTACK_H)
21 #define GDB_OBSTACK_H 1
25 /* Utility macros - wrap obstack alloc into something more robust. */
27 #define OBSTACK_ZALLOC(OBSTACK,TYPE) \
28 ((TYPE *) memset (obstack_alloc ((OBSTACK), sizeof (TYPE)), 0, sizeof (TYPE)))
30 #define OBSTACK_CALLOC(OBSTACK,NUMBER,TYPE) \
31 ((TYPE *) memset (obstack_alloc ((OBSTACK), (NUMBER) * sizeof (TYPE)), \
32 0, (NUMBER) * sizeof (TYPE)))
34 /* Unless explicitly specified, GDB obstacks always use xmalloc() and
36 /* Note: ezannoni 2004-02-09: One could also specify the allocation
37 functions using a special init function for each obstack,
38 obstack_specify_allocation. However we just use obstack_init and
39 let these defines here do the job. While one could argue the
40 superiority of one approach over the other, we just chose one
43 #define obstack_chunk_alloc xmalloc
44 #define obstack_chunk_free xfree
46 #define obstack_grow_str(OBSTACK,STRING) \
47 obstack_grow (OBSTACK, STRING, strlen (STRING))
48 #define obstack_grow_str0(OBSTACK,STRING) \
49 obstack_grow0 (OBSTACK, STRING, strlen (STRING))
51 #define obstack_grow_wstr(OBSTACK, WSTRING) \
52 obstack_grow (OBSTACK, WSTRING, sizeof (gdb_wchar_t) * gdb_wcslen (WSTRING))
54 /* Concatenate NULL terminated variable argument list of `const char
55 *' strings; return the new string. Space is found in the OBSTACKP.
56 Argument list must be terminated by a sentinel expression `(char *)
59 extern char *obconcat (struct obstack
*obstackp
, ...) ATTRIBUTE_SENTINEL
;
61 /* Duplicate STRING, returning an equivalent string that's allocated on the
64 extern char *obstack_strdup (struct obstack
*obstackp
, const char *string
);
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