mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
48 lines
765 B
C
48 lines
765 B
C
/* Test STT_GNU_IFUNC symbols with dynamic function pointer only. */
|
|
|
|
#include <stdlib.h>
|
|
|
|
extern int foo (void);
|
|
extern int foo_protected (void);
|
|
|
|
typedef int (*foo_p) (void);
|
|
|
|
foo_p
|
|
__attribute__ ((noinline))
|
|
get_foo (void)
|
|
{
|
|
return foo;
|
|
}
|
|
|
|
|
|
/* Address-significant access to protected symbols is not supported in
|
|
position-dependent mode on several architectures because GCC
|
|
generates relocations that assume that the address is local to the
|
|
main program. */
|
|
#ifdef __PIE__
|
|
foo_p
|
|
__attribute__ ((noinline))
|
|
get_foo_protected (void)
|
|
{
|
|
return foo_protected;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
foo_p p;
|
|
|
|
p = get_foo ();
|
|
if ((*p) () != -1)
|
|
abort ();
|
|
|
|
#ifdef __PIE__
|
|
p = get_foo_protected ();
|
|
if ((*p) () != 0)
|
|
abort ();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|