1
2/*--------------------------------------------------------------------*/
3/*--- Services layered on top of m_aspacemgr.         m_aspacehl.c ---*/
4/*--------------------------------------------------------------------*/
5
6/*
7   This file is part of Valgrind, a dynamic binary instrumentation
8   framework.
9
10   Copyright (C) 2006-2011 Julian Seward
11      jseward@acm.org
12
13   This program is free software; you can redistribute it and/or
14   modify it under the terms of the GNU General Public License as
15   published by the Free Software Foundation; either version 2 of the
16   License, or (at your option) any later version.
17
18   This program is distributed in the hope that it will be useful, but
19   WITHOUT ANY WARRANTY; without even the implied warranty of
20   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21   General Public License for more details.
22
23   You should have received a copy of the GNU General Public License
24   along with this program; if not, write to the Free Software
25   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
26   02111-1307, USA.
27
28   The GNU General Public License is contained in the file COPYING.
29*/
30
31#include "pub_core_basics.h"
32#include "pub_core_aspacemgr.h"
33#include "pub_core_mallocfree.h"
34
35#include "pub_core_aspacehl.h"
36
37// Extract from aspacem a vector of the current segment start
38// addresses.  The vector is dynamically allocated and should be freed
39// by the caller when done.  REQUIRES m_mallocfree to be running.
40// Writes the number of addresses required into *n_acquired.
41Addr* VG_(get_segment_starts) ( /*OUT*/Int* n_acquired )
42{
43   Addr* starts;
44   Int   n_starts, r = 0;
45
46   n_starts = 1;
47   while (True) {
48      starts = VG_(malloc)( "main.gss.1", n_starts * sizeof(Addr) );
49      if (starts == NULL)
50         break;
51      r = VG_(am_get_segment_starts)( starts, n_starts );
52      if (r >= 0)
53         break;
54      VG_(free)(starts);
55      n_starts *= 2;
56   }
57
58   if (starts == NULL) {
59     *n_acquired = 0;
60     return NULL;
61   }
62
63   *n_acquired = r;
64   return starts;
65}
66
67/*--------------------------------------------------------------------*/
68/*--- end                                                          ---*/
69/*--------------------------------------------------------------------*/
70