testing/test-cases/dladdr-dylib.dtest/foo.c

   1
   2
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6 #include <dlfcn.h>
   7 #include <mach-o/dyld_priv.h>
   8
   9 extern void* __dso_handle;
  10
  11 int dylib_bar()
  12 {
  13     return 2;
  14 }
  15
  16 static int dylib_foo()
  17 {
  18     return 3;
  19 }
  20
  21 __attribute__((visibility("hidden"))) int dylib_hide()
  22 {
  23     return 4;
  24 }
  25
  26 // checks global symbol
  27 static void verifybar()
  28 {
  29     Dl_info info;
  30     if ( dladdr(&dylib_bar, &info) == 0 ) {
  31         printf("[FAIL] dladdr(&dylib_bar, xx) failed\n");
  32         exit(0);
  33     }
  34     if ( strcmp(info.dli_sname, "dylib_bar") != 0 ) {
  35         printf("[FAIL] dladdr()->dli_sname is \"%s\" instead of \"dylib_bar\"\n", info.dli_sname);
  36         exit(0);
  37     }
  38     if ( info.dli_saddr != &dylib_bar) {
  39         printf("[FAIL] dladdr()->dli_saddr is not &dylib_bar\n");
  40         exit(0);
  41     }
  42     if ( info.dli_fbase != &__dso_handle ) {
  43         printf("[FAIL] dladdr()->dli_fbase is not image that contains &dylib_bar\n");
  44         exit(0);
  45     }
  46 }
  47
  48 // checks local symbol
  49 static void verifyfoo()
  50 {
  51     Dl_info info;
  52     if ( dladdr(&dylib_foo, &info) == 0 ) {
  53         printf("[FAIL] dladdr(&dylib_foo, xx) failed\n");
  54         exit(0);
  55     }
  56     if ( strcmp(info.dli_sname, "dylib_foo") != 0 ) {
  57         printf("[FAIL] dladdr()->dli_sname is \"%s\" instead of \"dylib_foo\"\n", info.dli_sname);
  58         exit(0);
  59     }
  60     if ( info.dli_saddr != &dylib_foo) {
  61         printf("[FAIL] dladdr()->dli_saddr is not &dylib_foo\n");
  62         exit(0);
  63     }
  64     if ( info.dli_fbase != &__dso_handle ) {
  65         printf("[FAIL] dladdr()->dli_fbase is not image that contains &dylib_foo\n");
  66         exit(0);
  67     }
  68 }
  69
  70 // checks hidden symbol
  71 static void verifyhide()
  72 {
  73     Dl_info info;
  74     if ( dladdr(&dylib_hide, &info) == 0 ) {
  75         printf("[FAIL] dladdr(&dylib_hide, xx) failed\n");
  76         exit(0);
  77     }
  78     if ( strcmp(info.dli_sname, "dylib_hide") != 0 ) {
  79         printf("[FAIL] dladdr()->dli_sname is \"%s\" instead of \"dylib_hide\"\n", info.dli_sname);
  80         exit(0);
  81     }
  82     if ( info.dli_saddr != &dylib_hide) {
  83         printf("[FAIL] dladdr()->dli_saddr is not &dylib_hide\n");
  84         exit(0);
  85     }
  86     if ( info.dli_fbase != &__dso_handle ) {
  87         printf("[FAIL] dladdr()->dli_fbase is not image that contains &dylib_hide\n");
  88         exit(0);
  89     }
  90 }
  91
  92
  93 void verifyDylib()
  94 {
  95     verifybar();
  96     verifyfoo();
  97     verifyhide();
  98 }
  99