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/*--------------------------------------------------------------------*/
/*--- ExeContexts: long-lived stack traces. pub_tool_execontext.h ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Valgrind, a dynamic binary instrumentation
framework.
Copyright (C) 2000-2005 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.
*/
#ifndef __PUB_TOOL_EXECONTEXT_H
#define __PUB_TOOL_EXECONTEXT_H
// It's an abstract type.
typedef
struct _ExeContext
ExeContext;
// Resolution type used to decide how closely to compare two errors for
// equality.
typedef
enum { Vg_LowRes, Vg_MedRes, Vg_HighRes }
VgRes;
// Take a snapshot of the client's stack. Search our collection of
// ExeContexts to see if we already have it, and if not, allocate a
// new one. Either way, return a pointer to the context. Context size
// controlled by --num-callers option.
//
// This should only be used for long-lived stack traces. If you want a
// short-lived stack trace, use VG_(get_StackTrace)().
//
// If called from generated code, use VG_(get_running_tid)() to get the
// current ThreadId. If called from non-generated code, the current
// ThreadId should be passed in by the core.
extern ExeContext* VG_(record_ExeContext) ( ThreadId tid );
// Apply a function to every element in the ExeContext. The parameter 'n'
// gives the index of the passed ip. Doesn't go below main() unless
// --show-below-main=yes is set.
extern void VG_(apply_ExeContext)( void(*action)(UInt n, Addr ip),
ExeContext* ec, UInt n_ips );
// Compare two ExeContexts. Number of callers considered depends on `res':
// Vg_LowRes: 2
// Vg_MedRes: 4
// Vg_HighRes: all
extern Bool VG_(eq_ExeContext) ( VgRes res, ExeContext* e1, ExeContext* e2 );
// Print an ExeContext.
extern void VG_(pp_ExeContext) ( ExeContext* ec );
#endif // __PUB_TOOL_EXECONTEXT_H
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/*--- end ---*/
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