coregrind/pub_core_stacks.h

   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@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, see <http://www.gnu.org/licenses/>.
  25
  26    The GNU General Public License is contained in the file COPYING.
  27 */
  28
  29 #ifndef __PUB_CORE_STACKS_H
  30 #define __PUB_CORE_STACKS_H
  31
  32 #include "pub_core_basics.h"    // VG_ macro
  33
  34 //--------------------------------------------------------------------
  35 // PURPOSE: This module deals with the registration of stacks for the
  36 // purposes of detecting stack switches.
  37 //--------------------------------------------------------------------
  38
  39 /* Convention for start and end:
  40    'start' is the lowest address, 'end' is the highest address.
  41    'start' and 'end' bytes are included in the stack.
  42    In other words, the stack is the byte interval ['start', 'end']
  43    (both bounds are included).
  44
  45    Note: for compatibility reasons, VG_(register_stack) accepts
  46    'start' bigger than 'end' and will (transparently) swap 'start/end'
  47    to register the stack. */
  48 extern UWord VG_(register_stack)   ( Addr start, Addr end );
  49 extern void  VG_(deregister_stack) ( UWord id );
  50 extern void  VG_(change_stack)     ( UWord id, Addr start, Addr end );
  51 extern void  VG_(stack_limits)     ( Addr SP, Addr *start, Addr *end );
  52
  53 extern VG_REGPARM(3)
  54        void VG_(unknown_SP_update_w_ECU)
  55                                    ( Addr old_SP, Addr new_SP, UInt ecu );
  56 extern VG_REGPARM(2)
  57        void VG_(unknown_SP_update) ( Addr old_SP, Addr new_SP );
  58
  59 #endif   // __PUB_CORE_STACKS_H
  60
  61 /*--------------------------------------------------------------------*/
  62 /*--- end                                                          ---*/
  63 /*--------------------------------------------------------------------*/
  64