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      1 
      2 /*--------------------------------------------------------------------*/
      3 /*--- ExeContexts: long-lived, non-dup'd stack traces.             ---*/
      4 /*---                                        pub_core_execontext.h ---*/
      5 /*--------------------------------------------------------------------*/
      6 
      7 /*
      8    This file is part of Valgrind, a dynamic binary instrumentation
      9    framework.
     10 
     11    Copyright (C) 2000-2017 Julian Seward
     12       jseward (at) acm.org
     13 
     14    This program is free software; you can redistribute it and/or
     15    modify it under the terms of the GNU General Public License as
     16    published by the Free Software Foundation; either version 2 of the
     17    License, or (at your option) any later version.
     18 
     19    This program is distributed in the hope that it will be useful, but
     20    WITHOUT ANY WARRANTY; without even the implied warranty of
     21    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     22    General Public License for more details.
     23 
     24    You should have received a copy of the GNU General Public License
     25    along with this program; if not, write to the Free Software
     26    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     27    02111-1307, USA.
     28 
     29    The GNU General Public License is contained in the file COPYING.
     30 */
     31 
     32 #ifndef __PUB_CORE_EXECONTEXT_H
     33 #define __PUB_CORE_EXECONTEXT_H
     34 
     35 //--------------------------------------------------------------------
     36 // PURPOSE: This module provides an abstract data type, ExeContext,
     37 // which is a stack trace stored in such a way that duplicates are
     38 // avoided.  This also facilitates fast comparisons if necessary.
     39 //--------------------------------------------------------------------
     40 
     41 #include "pub_tool_execontext.h"
     42 
     43 /* The maximum number of calls we're prepared to save in an ExeContext. */
     44 #define VG_DEEPEST_BACKTRACE 500
     45 
     46 // Print stats (informational only).
     47 // If with_stacktraces, outputs all the recorded stacktraces.
     48 extern void VG_(print_ExeContext_stats) ( Bool with_stacktraces );
     49 
     50 // Extract the StackTrace from an ExeContext.
     51 // (Minor hack: we use Addr* as the return type instead of StackTrace so
     52 // that modules #including this file don't also have to #include
     53 // pub_core_stacktrace.h also.)
     54 extern
     55 /*StackTrace*/Addr* VG_(get_ExeContext_StackTrace) ( ExeContext* e );
     56 
     57 
     58 #endif   // __PUB_CORE_EXECONTEXT_H
     59 
     60 /*--------------------------------------------------------------------*/
     61 /*--- end                                                          ---*/
     62 /*--------------------------------------------------------------------*/
     63