| #include <iostream> |
| #include <fstream> |
| #include <cstdlib> |
| #include <string> |
| #include <cinttypes> |
| |
| #include "wasm.hh" |
| |
| |
| void print_frame(const wasm::Frame* frame) { |
| std::cout << "> " << frame->instance(); |
| std::cout << " @ 0x" << std::hex << frame->module_offset(); |
| std::cout << " = " << frame->func_index(); |
| std::cout << ".0x" << std::hex << frame->func_offset() << std::endl; |
| } |
| |
| |
| void run() { |
| // Initialize. |
| std::cout << "Initializing..." << std::endl; |
| auto engine = wasm::Engine::make(); |
| auto store_ = wasm::Store::make(engine.get()); |
| auto store = store_.get(); |
| |
| // Load binary. |
| std::cout << "Loading binary..." << std::endl; |
| std::ifstream file("start.wasm"); |
| file.seekg(0, std::ios_base::end); |
| auto file_size = file.tellg(); |
| file.seekg(0); |
| auto binary = wasm::vec<byte_t>::make_uninitialized(file_size); |
| file.read(binary.get(), file_size); |
| file.close(); |
| if (file.fail()) { |
| std::cout << "> Error loading module!" << std::endl; |
| exit(1); |
| } |
| |
| // Compile. |
| std::cout << "Compiling module..." << std::endl; |
| auto module = wasm::Module::make(store, binary); |
| if (!module) { |
| std::cout << "> Error compiling module!" << std::endl; |
| exit(1); |
| } |
| |
| // Instantiate. |
| std::cout << "Instantiating module..." << std::endl; |
| wasm::own<wasm::Trap> trap; |
| auto instance = wasm::Instance::make(store, module.get(), nullptr, &trap); |
| if (instance || !trap) { |
| std::cout << "> Error instantiating module, expected trap!" << std::endl; |
| exit(1); |
| } |
| |
| // Print result. |
| std::cout << "Printing message..." << std::endl; |
| std::cout << "> " << trap->message().get() << std::endl; |
| |
| std::cout << "Printing origin..." << std::endl; |
| auto frame = trap->origin(); |
| if (frame) { |
| print_frame(frame.get()); |
| } else { |
| std::cout << "> Empty origin." << std::endl; |
| } |
| |
| std::cout << "Printing trace..." << std::endl; |
| auto trace = trap->trace(); |
| if (trace.size() > 0) { |
| for (size_t i = 0; i < trace.size(); ++i) { |
| print_frame(trace[i].get()); |
| } |
| } else { |
| std::cout << "> Empty trace." << std::endl; |
| } |
| |
| // Shut down. |
| std::cout << "Shutting down..." << std::endl; |
| } |
| |
| |
| int main(int argc, const char* argv[]) { |
| run(); |
| std::cout << "Done." << std::endl; |
| return 0; |
| } |
| |