src/tests/system/runtime_loader/test_suite/dlopen_resolve_basic3

   1 #!/bin/sh
   2
   3 # program
   4 #
   5 # dlopen():
   6 # liba.so
   7 # <- libb.so
   8 #    <- libb_dependency.so
   9 #
  10 # Expected: Undefined symbol in liba.so resolves to symbol in
  11 # libb_dependency.so.
  12
  13
  14 . ./test_setup
  15
  16
  17 # create libb_dependency.so
  18 cat > libb_dependency.c << EOI
  19 int c() { return 1; }
  20 EOI
  21
  22 # build
  23 compile_lib -o libb_dependency.so libb_dependency.c
  24
  25
  26 # create libb.so
  27 cat > libb.c << EOI
  28 int b() { return 1; }
  29 EOI
  30
  31 # build
  32 compile_lib -o libb.so libb.c ./libb_dependency.so
  33
  34
  35 # create liba.so
  36 cat > liba.c << EOI
  37 extern int c();
  38 int a() { return c(); }
  39 EOI
  40
  41 # build
  42 compile_lib -o liba.so liba.c ./libb.so
  43
  44
  45 # create program
  46 cat > program.c << EOI
  47 #include <dlfcn.h>
  48 #include <stdio.h>
  49 #include <stdlib.h>
  50 int
  51 main()
  52 {
  53         void* liba;
  54         int (*a)();
  55
  56         liba = dlopen("./liba.so", RTLD_NOW | RTLD_GLOBAL);
  57         if (liba == NULL) {
  58                 fprintf(stderr, "Error opening liba.so: %s\n", dlerror());
  59                 exit(117);
  60         }
  61
  62         a = (int (*)())dlsym(liba, "a");
  63         if (a == NULL) {
  64                 fprintf(stderr, "Error getting symbol a: %s\n", dlerror());
  65                 exit(116);
  66         }
  67
  68         return a();
  69 }
  70 EOI
  71
  72 # build
  73 compile_program_dl -o program program.c
  74
  75 # run
  76 test_run_ok ./program 1
  77