1 2 #include <stdio.h> 3 #include <stdlib.h> 4 5 #ifdef DLOPEN_FUNC_DIR 6 #include <dlfcn.h> 7 #else 8 void func(int K); 9 void func2(int K); 10 #endif 11 12 int main(int argc, char *argv[]) { 13 #ifdef DLOPEN_FUNC_DIR 14 dlerror(); 15 void *f1_handle = dlopen(DLOPEN_FUNC_DIR"/func.shared", DLOPEN_FLAGS); 16 if (f1_handle == NULL) { 17 fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func.shared': %s\n", 18 dlerror()); 19 return EXIT_FAILURE; 20 } 21 22 void (*func)(int) = (void (*)(int))dlsym(f1_handle, "func"); 23 if (func == NULL) { 24 fprintf(stderr, "unable to lookup symbol 'func': %s\n", dlerror()); 25 return EXIT_FAILURE; 26 } 27 28 void *f2_handle = dlopen(DLOPEN_FUNC_DIR"/func2.shared", DLOPEN_FLAGS); 29 if (f2_handle == NULL) { 30 fprintf(stderr, "unable to open '" DLOPEN_FUNC_DIR "/func2.shared': %s\n", 31 dlerror()); 32 return EXIT_FAILURE; 33 } 34 35 void (*func2)(int) = (void (*)(int))dlsym(f2_handle, "func2"); 36 if (func2 == NULL) { 37 fprintf(stderr, "unable to lookup symbol 'func2': %s\n", dlerror()); 38 return EXIT_FAILURE; 39 } 40 #endif 41 42 func(1); 43 func2(0); 44 45 return EXIT_SUCCESS; 46 } 47 48
