168 lines
3.8 KiB
C
168 lines
3.8 KiB
C
#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <link.h>
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static int
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do_test (void)
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{
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static const char modname1[] = "$ORIGIN/tst-tlsmod3.so";
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static const char modname2[] = "$ORIGIN/tst-tlsmod4.so";
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int result = 0;
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int (*fp1) (void);
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int (*fp2) (int, int *);
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void *h1;
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void *h2;
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int i;
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size_t modid1 = (size_t) -1;
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size_t modid2 = (size_t) -1;
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int *bazp;
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for (i = 0; i < 10; ++i)
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{
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h1 = dlopen (modname1, RTLD_LAZY);
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if (h1 == NULL)
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{
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printf ("cannot open '%s': %s\n", modname1, dlerror ());
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exit (1);
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}
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/* Dirty test code here: we peek into a private data structure.
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We make sure that the module gets assigned the same ID every
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time. The value of the first round is used. */
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if (modid1 == (size_t) -1)
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modid1 = ((struct link_map *) h1)->l_tls_modid;
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else if (((struct link_map *) h1)->l_tls_modid != modid1)
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{
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printf ("round %d: modid now %zd, initially %zd\n",
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i, ((struct link_map *) h1)->l_tls_modid, modid1);
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result = 1;
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}
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fp1 = dlsym (h1, "in_dso2");
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if (fp1 == NULL)
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{
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printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
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exit (1);
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}
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result |= fp1 ();
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h2 = dlopen (modname2, RTLD_LAZY);
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if (h2 == NULL)
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{
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printf ("cannot open '%s': %s\n", modname2, dlerror ());
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exit (1);
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}
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/* Dirty test code here: we peek into a private data structure.
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We make sure that the module gets assigned the same ID every
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time. The value of the first round is used. */
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if (modid2 == (size_t) -1)
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modid2 = ((struct link_map *) h1)->l_tls_modid;
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else if (((struct link_map *) h1)->l_tls_modid != modid2)
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{
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printf ("round %d: modid now %zd, initially %zd\n",
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i, ((struct link_map *) h1)->l_tls_modid, modid2);
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result = 1;
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}
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bazp = dlsym (h2, "baz");
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if (bazp == NULL)
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{
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printf ("cannot get symbol 'baz' in %s\n", modname2);
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exit (1);
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}
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*bazp = 42 + i;
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fp2 = dlsym (h2, "in_dso");
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if (fp2 == NULL)
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{
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printf ("cannot get symbol 'in_dso' in %s\n", modname2);
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exit (1);
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}
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result |= fp2 (42 + i, bazp);
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dlclose (h1);
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dlclose (h2);
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h1 = dlopen (modname1, RTLD_LAZY);
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if (h1 == NULL)
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{
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printf ("cannot open '%s': %s\n", modname1, dlerror ());
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exit (1);
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}
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/* Dirty test code here: we peek into a private data structure.
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We make sure that the module gets assigned the same ID every
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time. The value of the first round is used. */
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if (((struct link_map *) h1)->l_tls_modid != modid1)
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{
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printf ("round %d: modid now %zd, initially %zd\n",
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i, ((struct link_map *) h1)->l_tls_modid, modid1);
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result = 1;
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}
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fp1 = dlsym (h1, "in_dso2");
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if (fp1 == NULL)
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{
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printf ("cannot get symbol 'in_dso2' in %s\n", modname1);
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exit (1);
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}
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result |= fp1 ();
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h2 = dlopen (modname2, RTLD_LAZY);
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if (h2 == NULL)
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{
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printf ("cannot open '%s': %s\n", modname2, dlerror ());
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exit (1);
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}
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/* Dirty test code here: we peek into a private data structure.
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We make sure that the module gets assigned the same ID every
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time. The value of the first round is used. */
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if (((struct link_map *) h1)->l_tls_modid != modid2)
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{
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printf ("round %d: modid now %zd, initially %zd\n",
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i, ((struct link_map *) h1)->l_tls_modid, modid2);
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result = 1;
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}
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bazp = dlsym (h2, "baz");
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if (bazp == NULL)
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{
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printf ("cannot get symbol 'baz' in %s\n", modname2);
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exit (1);
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}
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*bazp = 62 + i;
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fp2 = dlsym (h2, "in_dso");
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if (fp2 == NULL)
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{
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printf ("cannot get symbol 'in_dso' in %s\n", modname2);
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exit (1);
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}
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result |= fp2 (62 + i, bazp);
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/* This time the dlclose calls are in reverse order. */
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dlclose (h2);
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dlclose (h1);
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}
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return result;
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}
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#include <support/test-driver.c>
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