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https://github.com/bytecodealliance/wasm-micro-runtime.git
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50b6474f54
Refer to https://github.com/WebAssembly/WASI/blob/main/design/application-abi.md to check the WASI ABI compatibility: - Command (main module) may export _start function with signature "()" - Reactor (sub module) may export _initialize function with signature "()" - _start and _initialize can not be exported at the same time - Reactor cannot export _start function - Command and Reactor must export memory And - Rename module->is_wasi_module to module->import_wasi_api - Refactor wasm_loader_find_export() - Remove MULTI_MODULE related codes from mini_loader - Update multi-module samples - Fix a "use-after-free" issue. Since we reuse the memory instance of sub module, just to protect it from freeing an imported memory instance
75 lines
1.2 KiB
C++
75 lines
1.2 KiB
C++
#include <cstdlib>
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#include <cstdio>
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#include <iostream>
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static void
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bye_main()
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{
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std::cout << "mD " << __FUNCTION__ << std::endl;
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}
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static void
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bye_setup()
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{
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std::cout << "mD " << __FUNCTION__ << std::endl;
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}
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static void
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bye_func()
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{
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std::cout << "mD " << __FUNCTION__ << std::endl;
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}
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void
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func3() __attribute__((__import_module__("mE"), __import_name__("func1")));
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void
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func4() __attribute__((__import_module__("mE"), __import_name__("func2")));
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void
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func1()
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{
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std::printf("mD %s\n", __FUNCTION__);
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if (std::atexit(bye_func) != 0) {
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std::perror("register an atexit handler failed");
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}
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func3();
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}
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void
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func2()
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{
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std::printf("mD %s\n", __FUNCTION__);
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func4();
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}
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__attribute__((constructor)) void
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setup()
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{
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std::cout << "mD " << __FUNCTION__ << std::endl;
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if (std::atexit(bye_setup) != 0) {
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std::perror("register an atexit handler failed");
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}
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}
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__attribute__((destructor)) void
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teardown()
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{
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std::cout << "mD " << __FUNCTION__ << std::endl;
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}
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int
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main()
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{
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std::printf("mD %s\n", __FUNCTION__);
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if (std::atexit(bye_main) != 0) {
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std::perror("register an atexit handler failed");
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return EXIT_FAILURE;
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}
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func1();
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func2();
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return EXIT_SUCCESS;
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}
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