src/tests/system/runtime_loader/test_suite/dlopen_resolve_order6

   1 #!/bin/sh
   2
   3 # program
   4 #
   5 # dlopen():
   6 # liba.so
   7 # <- libb.so
   8 #    <- libb_dependency.so
   9 # libd.so
  10 # libe.so
  11 #
  12 # Expected: Undefined symbol in libe.so resolves to symbol in
  13 # libb_dependency.so, not to symbol in libd.so.
  14
  15
  16 . ./test_setup
  17
  18
  19 # create libb_dependency.so
  20 cat > libb_dependency.c << EOI
  21 int c() { return 1; }
  22 EOI
  23
  24 # build
  25 compile_lib -o libb_dependency.so libb_dependency.c
  26
  27
  28 # create libb.so
  29 cat > libb.c << EOI
  30 int b() { return 1; }
  31 EOI
  32
  33 # build
  34 compile_lib -o libb.so libb.c ./libb_dependency.so
  35
  36
  37 # create libd.so
  38 cat > libd.c << EOI
  39 int c() { return 2; }
  40 EOI
  41
  42 # build
  43 compile_lib -o libd.so libd.c
  44
  45
  46 # create liba.so
  47 cat > liba.c << EOI
  48 extern int c();
  49 int e() { return 0; }
  50 EOI
  51
  52 # build
  53 compile_lib -o liba.so liba.c ./libb.so
  54
  55
  56 # create libe.so
  57 cat > libe.c << EOI
  58 extern int c();
  59 int a() { return c(); }
  60 EOI
  61
  62 # build
  63 compile_lib -o libe.so libe.c
  64
  65
  66 # create program
  67 cat > program.c << EOI
  68 #include <dlfcn.h>
  69 #include <stdio.h>
  70 #include <stdlib.h>
  71 int
  72 main()
  73 {
  74         void* liba;
  75         void* libd;
  76         void* libe;
  77         int (*a)();
  78
  79         liba = dlopen("./liba.so", RTLD_NOW | RTLD_GLOBAL);
  80         if (liba == NULL) {
  81                 fprintf(stderr, "Error opening liba.so: %s\n", dlerror());
  82                 exit(117);
  83         }
  84
  85         libd = dlopen("./libd.so", RTLD_NOW | RTLD_GLOBAL);
  86         if (libd == NULL) {
  87                 fprintf(stderr, "Error opening libd.so: %s\n", dlerror());
  88                 exit(117);
  89         }
  90
  91         libe = dlopen("./libe.so", RTLD_NOW | RTLD_GLOBAL);
  92         if (libe == NULL) {
  93                 fprintf(stderr, "Error opening libe.so: %s\n", dlerror());
  94                 exit(117);
  95         }
  96
  97         a = (int (*)())dlsym(libe, "a");
  98         if (a == NULL) {
  99                 fprintf(stderr, "Error getting symbol a: %s\n", dlerror());
 100                 exit(116);
 101         }
 102
 103         return a();
 104 }
 105 EOI
 106
 107 # build
 108 compile_program_dl -o program program.c
 109
 110 # run
 111 test_run_ok ./program 1