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) 2006-2017 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.
41 // Only those segments are considered whose kind matches any of the kinds
42 // given in KIND_MASK.
VG_(get_segment_starts)43 Addr* VG_(get_segment_starts) ( UInt kind_mask, /*OUT*/Int* n_acquired )
44 {
45 Addr* starts;
46 Int n_starts, r = 0;
47
48 n_starts = 1;
49 while (True) {
50 starts = VG_(malloc)( "main.gss.1", n_starts * sizeof(Addr) );
51 r = VG_(am_get_segment_starts)( kind_mask, starts, n_starts );
52 if (r >= 0)
53 break;
54 VG_(free)(starts);
55 n_starts *= 2;
56 }
57
58 *n_acquired = r;
59 return starts;
60 }
61
62 /*--------------------------------------------------------------------*/
63 /*--- end ---*/
64 /*--------------------------------------------------------------------*/
65