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) 2000-2013 Julian Seward
12      jseward@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.
48extern 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.)
54extern
55/*StackTrace*/Addr* VG_(get_ExeContext_StackTrace) ( ExeContext* e );
56
57
58#endif   // __PUB_CORE_EXECONTEXT_H
59
60/*--------------------------------------------------------------------*/
61/*--- end                                                          ---*/
62/*--------------------------------------------------------------------*/
63