blob: dfac89ed8265e64e4870a3ddbc387391bb2b3e9a [file] [log] [blame]
/*--------------------------------------------------------------------*/
/*--- Services layered on top of m_aspacemgr. m_aspacehl.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2006-2011 Julian Seward
jseward@acm.org
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#include "pub_core_basics.h"
#include "pub_core_aspacemgr.h"
#include "pub_core_mallocfree.h"
#include "pub_core_aspacehl.h"
// Extract from aspacem a vector of the current segment start
// addresses. The vector is dynamically allocated and should be freed
// by the caller when done. REQUIRES m_mallocfree to be running.
// Writes the number of addresses required into *n_acquired.
Addr* VG_(get_segment_starts) ( /*OUT*/Int* n_acquired )
{
Addr* starts;
Int n_starts, r = 0;
n_starts = 1;
while (True) {
starts = VG_(malloc)( "main.gss.1", n_starts * sizeof(Addr) );
if (starts == NULL)
break;
r = VG_(am_get_segment_starts)( starts, n_starts );
if (r >= 0)
break;
VG_(free)(starts);
n_starts *= 2;
}
if (starts == NULL) {
*n_acquired = 0;
return NULL;
}
*n_acquired = r;
return starts;
}
/*--------------------------------------------------------------------*/
/*--- end ---*/
/*--------------------------------------------------------------------*/