107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*******************************************************************************
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* Copyright (C) 2021 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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*******************************************************************************/
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#ifndef _ISS_FACTORY_H_
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#define _ISS_FACTORY_H_
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#include <algorithm>
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#include <functional>
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#include <iss/iss.h>
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#include <memory>
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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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using cpu_ptr = std::unique_ptr<iss::arch_if>;
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using vm_ptr = std::unique_ptr<iss::vm_if>;
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template <typename PLAT> std::tuple<cpu_ptr, vm_ptr> create_cpu(std::string const& backend, unsigned gdb_port) {
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using core_type = typename PLAT::core;
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core_type* lcpu = new PLAT();
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if(backend == "interp")
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return {cpu_ptr{lcpu}, vm_ptr{iss::interp::create(lcpu, gdb_port)}};
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#ifdef WITH_LLVM
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if(backend == "llvm")
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return {cpu_ptr{lcpu}, vm_ptr{iss::llvm::create(lcpu, gdb_port)}};
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#endif
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#ifdef WITH_TCC
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if(backend == "tcc")
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return {cpu_ptr{lcpu}, vm_ptr{iss::tcc::create(lcpu, gdb_port)}};
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#endif
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return {nullptr, nullptr};
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}
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class core_factory {
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using cpu_ptr = std::unique_ptr<iss::arch_if>;
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using vm_ptr = std::unique_ptr<iss::vm_if>;
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using base_t = std::tuple<cpu_ptr, vm_ptr>;
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using create_fn = std::function<base_t(unsigned, void*)>;
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using registry_t = std::unordered_map<std::string, create_fn>;
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registry_t registry;
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core_factory() = default;
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core_factory(const core_factory&) = delete;
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core_factory& operator=(const core_factory&) = delete;
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public:
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static core_factory& instance() {
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static core_factory bf;
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return bf;
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}
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bool register_creator(const std::string& className, create_fn const& fn) {
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registry[className] = fn;
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return true;
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}
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base_t create(std::string const& className, unsigned gdb_port = 0, void* init_data = nullptr) const {
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registry_t::const_iterator regEntry = registry.find(className);
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if(regEntry != registry.end())
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return regEntry->second(gdb_port, init_data);
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return {nullptr, nullptr};
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}
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std::vector<std::string> get_names() {
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std::vector<std::string> keys{registry.size()};
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std::transform(std::begin(registry), std::end(registry), std::begin(keys),
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[](std::pair<std::string, create_fn> const& p) { return p.first; });
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return keys;
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}
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};
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} // namespace iss
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#endif /* _ISS_FACTORY_H_ */
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