src/tests/system/runtime_loader/test_suite/dlopen_resolve_order5

   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 # libd.so, not to symbol in libb_dependency.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 int e() { return 0; }
  49 EOI
  50
  51 # build
  52 compile_lib -o liba.so liba.c ./libb.so ./libd.so
  53
  54
  55 # create libe.so
  56 cat > libe.c << EOI
  57 extern int c();
  58 int a() { return c(); }
  59 EOI
  60
  61 # build
  62 compile_lib -o libe.so libe.c
  63
  64
  65 # create program
  66 cat > program.c << EOI
  67 #include <dlfcn.h>
  68 #include <stdio.h>
  69 #include <stdlib.h>
  70 int
  71 main()
  72 {
  73         void* liba;
  74         void* libe;
  75         int (*a)();
  76
  77         liba = dlopen("./liba.so", RTLD_NOW | RTLD_GLOBAL);
  78         if (liba == NULL) {
  79                 fprintf(stderr, "Error opening liba.so: %s\n", dlerror());
  80                 exit(117);
  81         }
  82
  83         libe = dlopen("./libe.so", RTLD_NOW | RTLD_GLOBAL);
  84         if (libe == NULL) {
  85                 fprintf(stderr, "Error opening libe.so: %s\n", dlerror());
  86                 exit(117);
  87         }
  88
  89         a = (int (*)())dlsym(libe, "a");
  90         if (a == NULL) {
  91                 fprintf(stderr, "Error getting symbol a: %s\n", dlerror());
  92                 exit(116);
  93         }
  94
  95         return a();
  96 }
  97 EOI
  98
  99 # build
 100 compile_program_dl -o program program.c
 101
 102 # run
 103 test_run_ok ./program 2
 104