86 lines
1.7 KiB
C
86 lines
1.7 KiB
C
#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.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 modname[] = "tst-tlsmod2.so";
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int result = 0;
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int *foop;
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int (*fp) (int, int *);
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void *h;
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h = dlopen (modname, RTLD_LAZY);
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if (h == NULL)
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{
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printf ("cannot open '%s': %s\n", modname, dlerror ());
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exit (1);
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}
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fp = dlsym (h, "in_dso");
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if (fp == NULL)
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{
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printf ("cannot get symbol 'in_dso': %s\n", dlerror ());
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exit (1);
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}
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size_t modid = -1;
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if (dlinfo (h, RTLD_DI_TLS_MODID, &modid))
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{
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printf ("dlinfo RTLD_DI_TLS_MODID failed: %s\n", dlerror ());
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result = 1;
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}
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else
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printf ("dlinfo says TLS module ID %Zu\n", modid);
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void *block;
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if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
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{
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printf ("dlinfo RTLD_DI_TLS_DATA failed: %s\n", dlerror ());
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result = 1;
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}
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else if (block != NULL)
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{
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printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be unallocated\n",
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block);
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result = 1;
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}
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result |= fp (0, NULL);
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foop = dlsym (h, "foo");
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if (foop == NULL)
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{
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printf ("cannot get symbol 'foo' the second time: %s\n", dlerror ());
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exit (1);
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}
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if (*foop != 16)
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{
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puts ("foo != 16");
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result = 1;
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}
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/* Now the module's TLS block has been used and should appear. */
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if (dlinfo (h, RTLD_DI_TLS_DATA, &block))
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{
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printf ("dlinfo RTLD_DI_TLS_DATA failed the second time: %s\n",
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dlerror ());
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result = 1;
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}
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else if (block != foop)
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{
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printf ("dlinfo RTLD_DI_TLS_DATA says %p but should be %p\n",
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block, foop);
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result = 1;
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}
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dlclose (h);
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return result;
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}
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#include <support/test-driver.c>
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