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https://github.com/Zenithsiz/ftmemsim-valgrind.git
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f474d2e51a
two halves: stacktrace.c, which deals with getting, traversing and printing stack traces; and execontext.c, which deals with storing stack traces permanently in a way that avoids duplicates, and comparing them. One nice outcome: previously we were often creating ExeContexts, which live forever, even when they were only needed temporarily. Ie. this was a memory leak, which has been removed. As part of this, new headers have been created, carved off core.h and tool.h. Lots of function names have changed, too. In Massif, I also changed a lot of "eip" names to "ip" to make them less x86-specific. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3429
77 lines
2.9 KiB
C
77 lines
2.9 KiB
C
/*--------------------------------------------------------------------*/
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/*--- ExeContexts: long-lived stack traces. pub_tool_execontext.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Valgrind, a dynamic binary instrumentation
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framework.
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Copyright (C) 2000-2005 Julian Seward
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jseward@acm.org
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307, USA.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __PUB_TOOL_EXECONTEXT_H
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#define __PUB_TOOL_EXECONTEXT_H
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// It's an abstract type.
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typedef
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struct _ExeContext
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ExeContext;
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// Resolution type used to decide how closely to compare two errors for
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// equality.
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typedef
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enum { Vg_LowRes, Vg_MedRes, Vg_HighRes }
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VgRes;
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// Take a snapshot of the client's stack. Search our collection of
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// ExeContexts to see if we already have it, and if not, allocate a
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// new one. Either way, return a pointer to the context. Context size
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// controlled by --num-callers option.
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//
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// This should only be used for long-lived stack traces. If you want a
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// short-lived stack trace, use VG_(get_StackTrace)().
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//
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// If called from generated code, use VG_(get_running_tid)() to get the
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// current ThreadId. If called from non-generated code, the current
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// ThreadId should be passed in by the core.
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extern ExeContext* VG_(record_ExeContext) ( ThreadId tid );
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// Apply a function to every element in the ExeContext. The parameter 'n'
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// gives the index of the passed ip. Doesn't go below main() unless
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// --show-below-main=yes is set.
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extern void VG_(apply_ExeContext)( void(*action)(UInt n, Addr ip),
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ExeContext* ec, UInt n_ips );
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// Compare two ExeContexts. Number of callers considered depends on `res':
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// Vg_LowRes: 2
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// Vg_MedRes: 4
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// Vg_HighRes: all
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extern Bool VG_(eq_ExeContext) ( VgRes res, ExeContext* e1, ExeContext* e2 );
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// Print an ExeContext.
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extern void VG_(pp_ExeContext) ( ExeContext* ec );
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#endif // __PUB_TOOL_EXECONTEXT_H
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/*--------------------------------------------------------------------*/
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/*--- end ---*/
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/*--------------------------------------------------------------------*/
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