mirror of
https://github.com/Zenithsiz/ftmemsim-valgrind.git
synced 2026-02-06 11:41:34 +00:00
6334c4c3f9
* rename many functions to do with shadow memory handling, to
more clearly differentiate reads and writes directly of the
shadow state from client reads and writes, each of which
generate both a read and a write of the client state. It was
getting confusing (== hard to verify) in there.
* use idempotency of memory state machine transition rules to
speed up long sequential sections, speedups in range 0% to 28%
* remove 4-way Pord (EQ, LT, GT, UN) and associated machinery,
and replace it with something that merely computes LEQ in the
partial ordering, since that's all that is necessary, and
this simplifies some fast-case paths.
* add optional approx history mechanism a la DRD (start/end stack
of conflicting segment), much faster if you don't need exact
conflicting-access details
* libhb_so_recv: tick the VTS in the receiving thread; don't just
join with the VC in the SO. It's probably correct without this
modification, but that correctness is fragile and depends on
complex properties of how SOs are used/created. Much better to
be completely safe. (Needs cache-isation).
* get rid of unnecessary shadow memory state "SVal_NOACCESS"
and simplify associated fast-case paths in msmc{read,write}
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10589
74 lines
3.2 KiB
C
74 lines
3.2 KiB
C
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/*--------------------------------------------------------------------*/
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/*--- Error management for Helgrind. ---*/
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/*--- hg_errors.h ---*/
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/*--------------------------------------------------------------------*/
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/*
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This file is part of Helgrind, a Valgrind tool for detecting errors
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in threaded programs.
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Copyright (C) 2007-2009 OpenWorks Ltd
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info@open-works.co.uk
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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 __HG_ERRORS_H
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#define __HG_ERRORS_H
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/* The standard bundle of error management functions that we are
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required to present to the core/tool interface at startup. */
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Bool HG_(eq_Error) ( VgRes not_used, Error* e1, Error* e2 );
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void HG_(before_pp_Error) ( Error* err );
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void HG_(pp_Error) ( Error* err );
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UInt HG_(update_extra) ( Error* err );
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Bool HG_(recognised_suppression) ( Char* name, Supp *su );
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Bool HG_(read_extra_suppression_info) ( Int fd, Char** bufpp, SizeT* nBufp,
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Supp* su );
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Bool HG_(error_matches_suppression) ( Error* err, Supp* su );
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Char* HG_(get_error_name) ( Error* err );
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void HG_(print_extra_suppression_info) ( Error* err );
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/* Functions for recording various kinds of errors. */
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void HG_(record_error_Race) ( Thread* thr,
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Addr data_addr, Int szB, Bool isWrite,
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Thread* h1_confthr,
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ExeContext* h1_ct_segstart,
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ExeContext* h1_ct_mbsegend );
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void HG_(record_error_UnlockUnlocked) ( Thread*, Lock* );
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void HG_(record_error_UnlockForeign) ( Thread*, Thread*, Lock* );
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void HG_(record_error_UnlockBogus) ( Thread*, Addr );
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void HG_(record_error_PthAPIerror) ( Thread*, HChar*, Word, HChar* );
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void HG_(record_error_LockOrder) ( Thread*, Addr, Addr,
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ExeContext*, ExeContext* );
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void HG_(record_error_Misc) ( Thread*, HChar* );
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/* Statistics pertaining to error management. */
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extern ULong HG_(stats__LockN_to_P_queries);
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extern ULong HG_(stats__LockN_to_P_get_map_size) ( void );
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extern ULong HG_(stats__string_table_queries);
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extern ULong HG_(stats__string_table_get_map_size) ( void );
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#endif /* ! __HG_ERRORS_H */
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/*--------------------------------------------------------------------*/
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/*--- end hg_errors.h ---*/
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/*--------------------------------------------------------------------*/
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