| /* |
| * Copyright 2021 WebAssembly Community Group participants |
| * |
| * 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. |
| */ |
| |
| #ifndef wasm_tools_wasm_split_instrumenter_h |
| #define wasm_tools_wasm_split_instrumenter_h |
| |
| #include "pass.h" |
| #include "split-options.h" |
| #include "wasm.h" |
| |
| namespace wasm { |
| |
| // Add a global monotonic counter and a timestamp global for each function, code |
| // at the beginning of each function to set its timestamp, and a new exported |
| // function for dumping the profile data. |
| struct Instrumenter : public Pass { |
| PassRunner* runner = nullptr; |
| Module* wasm = nullptr; |
| |
| const WasmSplitOptions& options; |
| uint64_t moduleHash; |
| |
| Name counterGlobal; |
| std::vector<Name> functionGlobals; |
| |
| Name instrumentMemory; |
| |
| Instrumenter(const WasmSplitOptions& options, uint64_t moduleHash); |
| void run(PassRunner* runner, Module* wasm) override; |
| |
| private: |
| void addGlobals(size_t numFuncs); |
| void addMemory(size_t profileSize); |
| void instrumentFuncs(); |
| void addProfileExport(size_t numFuncs, size_t profileSize); |
| }; |
| |
| } // namespace wasm |
| |
| #endif // wasm_tools_wasm_split_instrumenter_h |