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/* Test STT_GNU_IFUNC symbols in PIE:
1. Direct function call.
2. Function pointer.
3. Reference from a shared library.
*/
#include <stdlib.h>
typedef int (*foo_p) (void);
extern foo_p foo_ptr;
static int
one (void)
{
return -30;
}
void * foo_ifunc (void) __asm__ ("foo");
__asm__(".type foo, %gnu_indirect_function");
void *
foo_ifunc (void)
{
return one;
}
extern int foo (void);
extern foo_p get_foo (void);
extern foo_p get_foo_p (void);
foo_p my_foo_ptr = foo;
int
main (void)
{
foo_p p;
p = get_foo ();
if (p != foo)
abort ();
if ((*p) () != -30)
abort ();
p = get_foo_p ();
if (p != foo)
abort ();
if ((*p) () != -30)
abort ();
if (foo_ptr != foo)
abort ();
if (my_foo_ptr != foo)
abort ();
if ((*foo_ptr) () != -30)
abort ();
if ((*my_foo_ptr) () != -30)
abort ();
if (foo () != -30)
abort ();
return 0;
}
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