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) 2006-2012 Julian Seward 11 jseward (at) 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 /*--- end ---*/ 69 /*--------------------------------------------------------------------*/ 70
