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415ac3df9b
Some symbols have to be identified process-wide by their name. This is particularly important for some C++ features (e.g., class local static data and static variables in inline functions). This cannot completely be implemented with ELF functionality so far. The STB_GNU_UNIQUE binding helps by ensuring the dynamic linker will always use the same definition for all symbols with the same name and this binding.
41 lines
791 B
C
41 lines
791 B
C
#include <config.h>
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#include <dlfcn.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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#ifdef HAVE_ASM_UNIQUE_OBJECT
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void *h1 = dlopen ("tst-unique1mod1.so", RTLD_LAZY);
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if (h1 == NULL)
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{
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puts ("cannot load tst-unique1mod1");
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return 1;
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}
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int *(*f1) (void) = dlsym (h1, "f");
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if (f1 == NULL)
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{
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puts ("cannot locate f in tst-unique1mod1");
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return 1;
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}
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void *h2 = dlopen ("tst-unique1mod2.so", RTLD_LAZY);
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if (h2 == NULL)
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{
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puts ("cannot load tst-unique1mod2");
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return 1;
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}
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int (*f2) (int *) = dlsym (h2, "f");
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if (f2 == NULL)
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{
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puts ("cannot locate f in tst-unique1mod2");
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return 1;
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}
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return f2 (f1 ());
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#else
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return 0;
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#endif
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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