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Sync VEX/LICENSE.GPL with top-level COPYING file. We used 3 different addresses for writing to the FSF to receive a copy of the GPL. Replace all different variants with an URL <http://www.gnu.org/licenses/>. The following files might still have some slightly different (L)GPL copyright notice because they were derived from other programs: - files under coregrind/m_demangle which come from libiberty: cplus-dem.c, d-demangle.c, demangle.h, rust-demangle.c, safe-ctype.c and safe-ctype.h - coregrind/m_demangle/dyn-string.[hc] derived from GCC. - coregrind/m_demangle/ansidecl.h derived from glibc. - VEX files for FMA detived from glibc: host_generic_maddf.h and host_generic_maddf.c - files under coregrin/m_debuginfo derived from LZO: lzoconf.h, lzodefs.h, minilzo-inl.c and minilzo.h - files under coregrind/m_gdbserver detived from GDB: gdb/signals.h, inferiors.c, regcache.c, regcache.h, regdef.h, remote-utils.c, server.c, server.h, signals.c, target.c, target.h and utils.c Plus the following test files: - none/tests/ppc32/testVMX.c derived from testVMX. - ppc tests derived from QEMU: jm-insns.c, ppc64_helpers.h and test_isa_3_0.c - tests derived from bzip2 (with embedded GPL text in code): hackedbz2.c, origin5-bz2.c, varinfo6.c - tests detived from glibc: str_tester.c, pth_atfork1.c - test detived from GCC libgomp: tc17_sembar.c - performance tests derived from bzip2 or tinycc (with embedded GPL text in code): bz2.c, test_input_for_tinycc.c and tinycc.c
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) 2006-2017 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 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, 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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