test/tls/tst-tls8.c

   1 #include <dlfcn.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 #include <tls.h>
   6 #include <link.h>
   7 #ifdef __UCLIBC__
   8 #include "dl-elf.h"
   9 #include "dl-hash.h"
  10 #endif
  11
  12
  13 #define TEST_FUNCTION do_test ()
  14 static int
  15 do_test (void)
  16 {
  17 #ifdef USE_TLS
  18   static const char modname1[] = "tst-tlsmod3.so";
  19   static const char modname2[] = "tst-tlsmod4.so";
  20   int result = 0;
  21   int (*fp1) (void);
  22   int (*fp2) (int, int *);
  23   void *h1;
  24   void *h2;
  25   int i;
  26   size_t modid1 = (size_t) -1;
  27   size_t modid2 = (size_t) -1;
  28   int *bazp;
  29
  30   for (i = 0; i < 10; ++i)
  31     {
  32       h1 = dlopen (modname1, RTLD_LAZY);
  33       if (h1 == NULL)
  34         {
  35           printf ("cannot open '%s': %s\n", modname1, dlerror ());
  36           exit (1);
  37         }
  38
  39       /* Dirty test code here: we peek into a private data structure.
  40          We make sure that the module gets assigned the same ID every
  41          time.  The value of the first round is used.  */
  42 #ifdef __UCLIBC__
  43       if (modid1 == (size_t) -1)
  44         modid1 = ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid;
  45       else if (((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid
  46         != (size_t) modid1)
  47         {
  48           printf ("round %d: modid now %zd, initially %zd\n",
  49                   i,
  50                   ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid,
  51                   modid1);
  52           result = 1;
  53         }
  54 #else
  55       if (modid1 == (size_t) -1)
  56         modid1 = ((struct link_map *) h1)->l_tls_modid;
  57       else if (((struct link_map *) h1)->l_tls_modid != modid1)
  58         {
  59           printf ("round %d: modid now %zd, initially %zd\n",
  60                   i, ((struct link_map *) h1)->l_tls_modid, modid1);
  61           result = 1;
  62         }
  63 #endif
  64
  65       fp1 = dlsym (h1, "in_dso2");
  66       if (fp1 == NULL)
  67         {
  68           printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
  69           exit (1);
  70         }
  71
  72       result |= fp1 ();
  73
  74
  75
  76       h2 = dlopen (modname2, RTLD_LAZY);
  77       if (h2 == NULL)
  78         {
  79           printf ("cannot open '%s': %s\n", modname2, dlerror ());
  80           exit (1);
  81         }
  82
  83       /* Dirty test code here: we peek into a private data structure.
  84          We make sure that the module gets assigned the same ID every
  85          time.  The value of the first round is used.  */
  86 #ifdef __UCLIBC__
  87       if (modid2 == (size_t) -1)
  88         modid2 = ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid;
  89       else if (((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid
  90         != (size_t) modid2)
  91         {
  92           printf ("round %d: modid now %zd, initially %zd\n",
  93                   i,
  94                   ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid,
  95                   modid2);
  96           result = 1;
  97         }
  98 #else
  99       if (modid2 == (size_t) -1)
 100         modid2 = ((struct link_map *) h1)->l_tls_modid;
 101       else if (((struct link_map *) h1)->l_tls_modid != modid2)
 102         {
 103           printf ("round %d: modid now %zd, initially %zd\n",
 104                   i, ((struct link_map *) h1)->l_tls_modid, modid2);
 105           result = 1;
 106         }
 107 #endif
 108
 109       bazp = dlsym (h2, "baz");
 110       if (bazp == NULL)
 111         {
 112           printf ("cannot get symbol 'baz' in %s\n", modname2);
 113           exit (1);
 114         }
 115
 116       *bazp = 42 + i;
 117
 118       fp2 = dlsym (h2, "in_dso");
 119       if (fp2 == NULL)
 120         {
 121           printf ("cannot get symbol 'in_dso' in %s\n", modname2);
 122           exit (1);
 123         }
 124
 125       result |= fp2 (42 + i, bazp);
 126
 127       dlclose (h1);
 128       dlclose (h2);
 129
 130
 131       h1 = dlopen (modname1, RTLD_LAZY);
 132       if (h1 == NULL)
 133         {
 134           printf ("cannot open '%s': %s\n", modname1, dlerror ());
 135           exit (1);
 136         }
 137
 138       /* Dirty test code here: we peek into a private data structure.
 139          We make sure that the module gets assigned the same ID every
 140          time.  The value of the first round is used.  */
 141 #ifdef __UCLIBC__
 142       if (((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid
 143         != modid1)
 144         {
 145           printf ("round %d: modid now %zd, initially %zd\n",
 146                   i,
 147                   ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid,
 148                   modid1);
 149           result = 1;
 150         }
 151 #else
 152       if (((struct link_map *) h1)->l_tls_modid != modid1)
 153         {
 154           printf ("round %d: modid now %zd, initially %zd\n",
 155                   i, ((struct link_map *) h1)->l_tls_modid, modid1);
 156           result = 1;
 157         }
 158 #endif
 159
 160       fp1 = dlsym (h1, "in_dso2");
 161       if (fp1 == NULL)
 162         {
 163           printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
 164           exit (1);
 165         }
 166
 167       result |= fp1 ();
 168
 169
 170
 171       h2 = dlopen (modname2, RTLD_LAZY);
 172       if (h2 == NULL)
 173         {
 174           printf ("cannot open '%s': %s\n", modname2, dlerror ());
 175           exit (1);
 176         }
 177
 178       /* Dirty test code here: we peek into a private data structure.
 179          We make sure that the module gets assigned the same ID every
 180          time.  The value of the first round is used.  */
 181 #ifdef __UCLIBC__
 182       if (((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid
 183         != modid2)
 184         {
 185           printf ("round %d: modid now %zd, initially %zd\n",
 186                   i,
 187                   ((struct link_map *)((struct dyn_elf *)h1)->dyn)->l_tls_modid,
 188                   modid2);
 189           result = 1;
 190         }
 191 #else
 192       if (((struct link_map *) h1)->l_tls_modid != modid2)
 193         {
 194           printf ("round %d: modid now %zd, initially %zd\n",
 195                   i, ((struct link_map *) h1)->l_tls_modid, modid2);
 196           result = 1;
 197         }
 198 #endif
 199
 200       bazp = dlsym (h2, "baz");
 201       if (bazp == NULL)
 202         {
 203           printf ("cannot get symbol 'baz' in %s\n", modname2);
 204           exit (1);
 205         }
 206
 207       *bazp = 62 + i;
 208
 209       fp2 = dlsym (h2, "in_dso");
 210       if (fp2 == NULL)
 211         {
 212           printf ("cannot get symbol 'in_dso' in %s\n", modname2);
 213           exit (1);
 214         }
 215
 216       result |= fp2 (62 + i, bazp);
 217
 218       /* This time the dlclose calls are in reverse order.  */
 219       dlclose (h2);
 220       dlclose (h1);
 221     }
 222
 223   return result;
 224 #else
 225   return 0;
 226 #endif
 227 }
 228
 229
 230 #include "../test-skeleton.c"