Home | History | Annotate | Download | only in coregrind
      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