| /* |
| * Copyright (c) 2015 PLUMgrid, Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| |
| #include "table_storage.h" |
| |
| namespace llvm { |
| class Module; |
| class LLVMContext; |
| class MemoryBuffer; |
| } |
| |
| namespace ebpf { |
| |
| class FuncSource { |
| class SourceCode { |
| public: |
| SourceCode(const std::string& s1 = "", const std::string& s2 = ""): src_(s1), src_rewritten_(s2) {} |
| std::string src_; |
| std::string src_rewritten_; |
| }; |
| std::map<std::string, SourceCode> funcs_; |
| public: |
| FuncSource() {} |
| void clear() { funcs_.clear(); } |
| const char * src(const std::string& name); |
| const char * src_rewritten(const std::string& name); |
| void set_src(const std::string& name, const std::string& src); |
| void set_src_rewritten(const std::string& name, const std::string& src); |
| }; |
| |
| class ClangLoader { |
| public: |
| explicit ClangLoader(llvm::LLVMContext *ctx, unsigned flags); |
| ~ClangLoader(); |
| int parse(std::unique_ptr<llvm::Module> *mod, TableStorage &ts, |
| const std::string &file, bool in_memory, const char *cflags[], |
| int ncflags, const std::string &id, FuncSource &func_src, |
| std::string &mod_src); |
| |
| private: |
| int do_compile(std::unique_ptr<llvm::Module> *mod, TableStorage &ts, |
| bool in_memory, const std::vector<const char *> &flags_cstr_in, |
| const std::vector<const char *> &flags_cstr_rem, |
| const std::string &main_path, |
| const std::unique_ptr<llvm::MemoryBuffer> &main_buf, |
| const std::string &id, FuncSource &func_src, |
| std::string &mod_src, bool use_internal_bpfh); |
| |
| private: |
| std::map<std::string, std::unique_ptr<llvm::MemoryBuffer>> remapped_headers_; |
| std::map<std::string, std::unique_ptr<llvm::MemoryBuffer>> remapped_footers_; |
| llvm::LLVMContext *ctx_; |
| unsigned flags_; |
| }; |
| |
| } // namespace ebpf |