53 lines
1.3 KiB
C
53 lines
1.3 KiB
C
#include <dlfcn.h>
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#include <stdlib.h>
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#include <stdio.h>
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static int
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do_test (void)
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{
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void *h = dlopen ("tst-tlsmod16a.so", RTLD_LAZY | RTLD_GLOBAL);
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if (h == NULL)
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{
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puts ("unexpectedly failed to open tst-tlsmod16a.so");
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exit (1);
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}
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void *p = dlsym (h, "tlsvar");
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/* This dlopen should indeed fail, because tlsvar was assigned to
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dynamic TLS, and the new module requests it to be in static TLS.
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However, there's a possibility that dlopen succeeds if the
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variable is, for whatever reason, assigned to static TLS, or if
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the module fails to require static TLS, or even if TLS is not
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supported. */
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h = dlopen ("tst-tlsmod16b.so", RTLD_NOW | RTLD_GLOBAL);
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if (h == NULL)
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{
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return 0;
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}
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puts ("unexpectedly succeeded to open tst-tlsmod16b.so");
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void *(*fp) (void) = (void *(*) (void)) dlsym (h, "in_dso");
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if (fp == NULL)
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{
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puts ("cannot find in_dso");
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exit (1);
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}
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/* If the dlopen passes, at least make sure the address returned by
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dlsym is the same as that returned by the initial-exec access.
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If the variable was assigned to dynamic TLS during dlsym, this
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portion will fail. */
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if (fp () != p)
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{
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puts ("returned values do not match");
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exit (1);
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}
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return 0;
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}
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#include <support/test-driver.c>
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