compiler-rt/test/profile/Inputs/instrprof-dlopen-main.c

   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