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glibc/elf/ifuncmain7.c
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/* Test local STT_GNU_IFUNC symbols: | |
1. Direct function call. | |
2. Function pointer. | |
*/ | |
#include <stdlib.h> | |
#include "ifunc-sel.h" | |
extern int foo (void); | |
static int | |
one (void) | |
{ | |
return -30; | |
} | |
static void * foo_ifunc (void) __asm__ ("foo"); | |
__asm__(".type foo, %gnu_indirect_function"); | |
static void * | |
__attribute__ ((used)) | |
foo_ifunc (void) | |
{ | |
return ifunc_one (one); | |
} | |
typedef int (*foo_p) (void); | |
foo_p foo_ptr = foo; | |
foo_p | |
__attribute__ ((noinline)) | |
get_foo_p (void) | |
{ | |
return foo_ptr; | |
} | |
foo_p | |
__attribute__ ((noinline)) | |
get_foo (void) | |
{ | |
return 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 ((*foo_ptr) () != -30) | |
abort (); | |
if (foo () != -30) | |
abort (); | |
return 0; | |
} |