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3392155359
- Update COPYING and VEX/LICENSE.GPL to version 3. - Update README, NEWS, docs/manual license and contributing text. - Update file headers to say either version 3 of the License, or (at your option) any later version. - Leave tests and perf file headers as is, unless the code is derived from Valgrind/VEX. - Leave valgrind.h, cachegrind.h, callgrind.h, drd.h, helgrind.h, memcheck.h and dhat.h Hybrid-BSD licensed.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/*
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This file is part of drd, a thread error detector.
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Copyright (C) 2006-2020 Bart Van Assche <bvanassche@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 3 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, see <http://www.gnu.org/licenses/>.
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The GNU General Public License is contained in the file COPYING.
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*/
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#ifndef __SEGMENT_H
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#define __SEGMENT_H
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/*
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* Segments and segment lists. A segment represents information about
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* a contiguous group of statements of a specific thread. There is a vector
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* clock associated with each segment.
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*/
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#include "drd_vc.h"
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#include "pub_drd_bitmap.h"
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#include "pub_tool_execontext.h" // ExeContext
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#include "pub_tool_stacktrace.h" // StackTrace
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typedef struct segment
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{
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struct segment* g_next;
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struct segment* g_prev;
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/** Pointers to next and previous segments executed by the same thread. */
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struct segment* thr_next;
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struct segment* thr_prev;
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DrdThreadId tid;
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/** Reference count: number of pointers that point to this segment. */
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int refcnt;
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/** Stack trace of the first instruction of the segment. */
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ExeContext* stacktrace;
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/** Vector clock associated with the segment. */
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VectorClock vc;
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/**
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* Bitmap representing the memory accesses by the instructions associated
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* with the segment.
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*/
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struct bitmap bm;
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} Segment;
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extern Segment* DRD_(g_sg_list);
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Segment* DRD_(sg_new)(const DrdThreadId creator, const DrdThreadId created);
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static int DRD_(sg_get_refcnt)(const Segment* const sg);
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Segment* DRD_(sg_get)(Segment* const sg);
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void DRD_(sg_put)(Segment* const sg);
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static struct bitmap* DRD_(sg_bm)(Segment* const sg);
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void DRD_(sg_merge)(Segment* const sg1, Segment* const sg2);
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void DRD_(sg_print)(Segment* const sg);
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Bool DRD_(sg_get_trace)(void);
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void DRD_(sg_set_trace)(const Bool trace_segment);
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ULong DRD_(sg_get_segments_created_count)(void);
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ULong DRD_(sg_get_segments_alive_count)(void);
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ULong DRD_(sg_get_max_segments_alive_count)(void);
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ULong DRD_(sg_get_segment_merge_count)(void);
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/** Query the reference count of the specified segment. */
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static __inline__ int DRD_(sg_get_refcnt)(const Segment* const sg)
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{
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#ifdef ENABLE_DRD_CONSISTENCY_CHECKS
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tl_assert(sg);
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#endif
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return sg->refcnt;
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}
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/** Return the pointer to the bitmap of the segment. */
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static __inline__ struct bitmap* DRD_(sg_bm)(Segment* const sg)
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{
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#ifdef ENABLE_DRD_CONSISTENCY_CHECKS
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tl_assert(sg);
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#endif
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return &sg->bm;
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}
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#endif // __SEGMENT_H
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