差異處
這裏顯示兩個版本的差異處。
| Both sides previous revision 前次修改 下次修改 | 前次修改 | ||
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java:jna:c_so的undefined_symbol問題 [2017/03/16 11:25] tony [How to resolve?] |
java:jna:c_so的undefined_symbol問題 [2023/06/25 09:48] (目前版本) |
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| 行 1: | 行 1: | ||
| + | {{tag>jna cpp mangling}} | ||
| ====== c++ so的undefined symbol問題 ====== | ====== c++ so的undefined symbol問題 ====== | ||
| ===== Problem ===== | ===== Problem ===== | ||
| 行 52: | 行 53: | ||
| 為了避免這個問題，我們可以透過在function宣告extern "C": | 為了避免這個問題，我們可以透過在function宣告extern "C": | ||
| <file cpp test.c> | <file cpp test.c> | ||
| + | extern "C" int test() | ||
| + | { | ||
| + | return 0; | ||
| + | } | ||
| </file> | </file> | ||
| + | 此時可以透過nm -D指令去確認編譯出來的so檔，是否保有原本的symbol名稱，與確認JNA已可正常使用。 | ||
| ===== Reference ===== | ===== Reference ===== | ||
| * [[http://stackoverflow.com/questions/31541451/create-shared-library-from-cpp-files-and-static-library-with-g|Create shared library from cpp files and static library with g++]] | * [[http://stackoverflow.com/questions/31541451/create-shared-library-from-cpp-files-and-static-library-with-g|Create shared library from cpp files and static library with g++]] | ||
