dlsym_key 225 syscallsreal.c static pthread_key_t dlsym_key = -1; dlsym_key 229 syscallsreal.c if (dlsym_key == -1) { dlsym_key 230 syscallsreal.c dlsym_key = key; dlsym_key 232 syscallsreal.c if (dlsym_key != key) {