xref: /titanic_41/usr/src/lib/libast/common/vmalloc/vmregion.c (revision da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968)
1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *           Copyright (c) 1985-2007 AT&T Knowledge Ventures            *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                      by AT&T Knowledge Ventures                      *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                  David Korn <dgk@research.att.com>                   *
19 *                   Phong Vo <kpv@research.att.com>                    *
20 *                                                                      *
21 ***********************************************************************/
22 #if defined(_UWIN) && defined(_BLD_ast)
23 
24 void _STUB_vmregion(){}
25 
26 #else
27 
28 #include	"vmhdr.h"
29 
30 /*	Return the containing region of an allocated piece of memory.
31 **	Beware: this only works with Vmbest and Vmtrace.
32 **
33 **	Written by Kiem-Phong Vo, kpv@research.att.com, 01/16/94.
34 */
35 #if __STD_C
36 Vmalloc_t* vmregion(reg Void_t* addr)
37 #else
38 Vmalloc_t* vmregion(addr)
39 reg Void_t*	addr;
40 #endif
41 {	return addr ? VM(BLOCK(addr)) : NIL(Vmalloc_t*);
42 }
43 
44 #endif
45