src/tests/system/runtime_loader/test_suite/dlopen_resolve_basic1

   1 #!/bin/sh
   2
   3 # program
   4 #
   5 # dlopen():
   6 # liba.so
   7 #
   8 # Expected: Undefined symbol in liba.so resolve to symbol in program.
   9
  10
  11 . ./test_setup
  12
  13
  14 # create liba.so
  15 cat > liba.c << EOI
  16 extern int b();
  17 int a() { return b(); }
  18 EOI
  19
  20 # build
  21 compile_lib -o liba.so liba.c
  22
  23
  24 # create program
  25 cat > program.c << EOI
  26 #include <dlfcn.h>
  27 #include <stdio.h>
  28 #include <stdlib.h>
  29
  30 int b() { return 1; }
  31
  32 int
  33 main()
  34 {
  35         void* liba;
  36         int (*a)();
  37
  38         liba = dlopen("./liba.so", RTLD_NOW | RTLD_GLOBAL);
  39         if (liba == NULL) {
  40                 /* Fails expectedly. */
  41                 /* fprintf(stderr, "Error opening liba.so: %s\n", dlerror()); */
  42                 exit(117);
  43         }
  44
  45         a = (int (*)())dlsym(liba, "a");
  46         if (a == NULL) {
  47                 fprintf(stderr, "Error getting symbol a: %s\n", dlerror());
  48                 exit(116);
  49         }
  50
  51         return a();
  52 }
  53 EOI
  54
  55 # build
  56 compile_program_dl -o program program.c
  57
  58 # run
  59 test_run_ok ./program 1