| njn | ac1e033 | 2009-05-08 00:39:31 +0000 | [diff] [blame^] | 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) 2006-2009 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 | Addr* 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 | |
| 69 | /*--------------------------------------------------------------------*/ |
| 70 | /*--- end ---*/ |
| 71 | /*--------------------------------------------------------------------*/ |