98 lines
3.4 KiB
C++
98 lines
3.4 KiB
C++
/*******************************************************************************
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* Copyright (C) 2017 - 2023, MINRES Technologies GmbH
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* All rights reserved.
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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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* 1. 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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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder 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 HOLDER 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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* Contributors:
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* eyck@minres.com - initial API and implementation
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******************************************************************************/
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#ifndef _ISS_PLUGIN_CYCLE_ESTIMATE_H_
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#define _ISS_PLUGIN_CYCLE_ESTIMATE_H_
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#include "iss/instrumentation_if.h"
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#include "iss/vm_plugin.h"
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#include <functional>
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#include <string>
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#include <unordered_map>
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#include <vector>
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namespace iss {
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namespace plugin {
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class cycle_estimate : public vm_plugin {
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struct instr_desc {
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size_t size{0};
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bool is_branch{false};
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unsigned not_taken{1};
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unsigned taken{1};
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std::function<unsigned(uint64_t)> f;
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};
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public:
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cycle_estimate() = delete;
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cycle_estimate(const cycle_estimate&) = delete;
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cycle_estimate(const cycle_estimate&&) = delete;
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cycle_estimate(std::string const& config_file_name);
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virtual ~cycle_estimate();
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cycle_estimate& operator=(const cycle_estimate&) = delete;
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cycle_estimate& operator=(const cycle_estimate&&) = delete;
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bool registration(const char* const version, vm_if& arch) override;
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sync_type get_sync() override { return ALL_SYNC; };
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void callback(instr_info_t instr_info) override;
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private:
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iss::instrumentation_if* instr_if{nullptr};
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uint32_t* reg_base_ptr{nullptr};
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instr_desc illegal_desc{};
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std::vector<instr_desc> delays;
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unsigned current_delay{0};
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struct pair_hash {
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size_t operator()(const std::pair<uint64_t, uint64_t>& p) const {
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std::hash<uint64_t> hash;
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return hash(p.first) + hash(p.second);
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}
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};
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std::unordered_map<std::pair<uint64_t, uint64_t>, uint64_t, pair_hash> blocks;
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std::string config_file_name;
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};
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} // namespace plugin
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} // namespace iss
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#endif /* _ISS_PLUGIN_CYCLE_ESTIMATE_H_ */
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