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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- Stack management.                                 m_stacks.c ---*/
      4 /*--------------------------------------------------------------------*/
      5 
      6 /*
      7    This file is part of Valgrind, a dynamic binary instrumentation
      8    framework.
      9 
     10    Copyright (C) 2000-2017 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 #ifndef __PUB_CORE_STACKS_H
     32 #define __PUB_CORE_STACKS_H
     33 
     34 #include "pub_core_basics.h"    // VG_ macro
     35 
     36 //--------------------------------------------------------------------
     37 // PURPOSE: This module deals with the registration of stacks for the
     38 // purposes of detecting stack switches.
     39 //--------------------------------------------------------------------
     40 
     41 /* Convention for start and end:
     42    'start' is the lowest address, 'end' is the highest address.
     43    'start' and 'end' bytes are included in the stack.
     44    In other words, the stack is the byte interval ['start', 'end']
     45    (both bounds are included).
     46 
     47    Note: for compatibility reasons, VG_(register_stack) accepts
     48    'start' bigger than 'end' and will (transparently) swap 'start/end'
     49    to register the stack. */
     50 extern UWord VG_(register_stack)   ( Addr start, Addr end );
     51 extern void  VG_(deregister_stack) ( UWord id );
     52 extern void  VG_(change_stack)     ( UWord id, Addr start, Addr end );
     53 extern void  VG_(stack_limits)     ( Addr SP, Addr *start, Addr *end );
     54 
     55 extern VG_REGPARM(3)
     56        void VG_(unknown_SP_update_w_ECU)
     57                                    ( Addr old_SP, Addr new_SP, UInt ecu );
     58 extern VG_REGPARM(2)
     59        void VG_(unknown_SP_update) ( Addr old_SP, Addr new_SP );
     60 
     61 #endif   // __PUB_CORE_STACKS_H
     62 
     63 /*--------------------------------------------------------------------*/
     64 /*--- end                                                          ---*/
     65 /*--------------------------------------------------------------------*/
     66 
     67