mirror of
https://github.com/VectorCamp/vectorscan.git
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130 lines
4.3 KiB
C++
130 lines
4.3 KiB
C++
/*
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* Copyright (c) 2016-2017, Intel Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Intel Corporation nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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* \brief Rose build: code for constructing literal tables.
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*/
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#ifndef ROSE_BUILD_MATCHERS_H
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#define ROSE_BUILD_MATCHERS_H
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#include "rose_build_impl.h"
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#include "rose_build_lit_accel.h"
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#include "hwlm/hwlm_build.h"
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#include "util/bytecode_ptr.h"
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#include "util/ue2string.h"
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#include <vector>
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struct Grey;
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struct HWLM;
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namespace ue2 {
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static constexpr u32 INVALID_FRAG_ID = ~0U;
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struct LitFragment {
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LitFragment(u32 fragment_id_in, ue2_literal s_in,
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rose_group groups_in, u32 lit_id)
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: fragment_id(fragment_id_in), s(s_in), groups(groups_in),
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lit_ids({lit_id}) {}
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LitFragment(u32 fragment_id_in, ue2_literal s_in,
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rose_group groups_in, std::vector<u32> lit_ids_in)
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: fragment_id(fragment_id_in), s(s_in), groups(groups_in),
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lit_ids(std::move(lit_ids_in)) {}
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u32 fragment_id;
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/**
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* \brief literal fragment.
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*/
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ue2_literal s;
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/**
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* \brief FDR confirm squash mask for included literals.
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*/
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u8 squash = 0;
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/**
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* \brief FDR confirm squash mask for included literals (Delayed
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* literals only).
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*/
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u8 delay_squash = 0;
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/**
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* \brief Fragment id of included literal.
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*/
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u32 included_frag_id = INVALID_FRAG_ID;
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/**
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* \brief Fragment Id of included literal (Delayed literals only).
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*/
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u32 included_delay_frag_id = INVALID_FRAG_ID;
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rose_group groups;
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std::vector<u32> lit_ids;
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u32 lit_program_offset = ROSE_INVALID_PROG_OFFSET;
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u32 delay_program_offset = ROSE_INVALID_PROG_OFFSET;
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};
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struct LitProto {
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LitProto(std::unique_ptr<HWLMProto> hwlmProto_in,
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std::vector<AccelString> &accel_lits_in)
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: hwlmProto(std::move(hwlmProto_in)), accel_lits(accel_lits_in) {}
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std::unique_ptr<HWLMProto> hwlmProto;
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std::vector<AccelString> accel_lits;
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};
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bytecode_ptr<HWLM>
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buildHWLMMatcher(const RoseBuildImpl &build, LitProto *proto);
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std::unique_ptr<LitProto>
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buildFloatingMatcherProto(const RoseBuildImpl &build,
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const std::vector<LitFragment> &fragments,
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size_t longLitLengthThreshold,
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rose_group *fgroups,
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size_t *historyRequired);
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std::unique_ptr<LitProto>
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buildDelayRebuildMatcherProto(const RoseBuildImpl &build,
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const std::vector<LitFragment> &fragments,
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size_t longLitLengthThreshold);
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std::unique_ptr<LitProto>
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buildSmallBlockMatcherProto(const RoseBuildImpl &build,
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const std::vector<LitFragment> &fragments);
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std::unique_ptr<LitProto>
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buildEodAnchoredMatcherProto(const RoseBuildImpl &build,
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const std::vector<LitFragment> &fragments);
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void findMoreLiteralMasks(RoseBuildImpl &build);
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} // namespace ue2
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#endif // ROSE_BUILD_MATCHERS_H
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