1 /* Test R_*_IRELATIVE resolver with second argument.
2 Copyright (C) 2019-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <stdint.h>
20 #include <sys/auxv.h>
21 #include <sys/ifunc.h>
22 #include <support/check.h>
23
24 static int
one(void)25 one (void)
26 {
27 return 1;
28 }
29
30 static uint64_t saved_arg1;
31 static __ifunc_arg_t saved_arg2;
32
33 /* local ifunc symbol. */
34 int
35 __attribute__ ((visibility ("hidden")))
36 foo (void);
37
38 static void *
39 __attribute__ ((used))
40 foo_ifunc (uint64_t, const __ifunc_arg_t *) __asm__ ("foo");
41 __asm__(".type foo, %gnu_indirect_function");
42
43 static void *
44 __attribute__ ((used))
45 inhibit_stack_protector
foo_ifunc(uint64_t arg1,const __ifunc_arg_t * arg2)46 foo_ifunc (uint64_t arg1, const __ifunc_arg_t *arg2)
47 {
48 saved_arg1 = arg1;
49 if (arg1 & _IFUNC_ARG_HWCAP)
50 saved_arg2 = *arg2;
51 return (void *) one;
52 }
53
54 static int
do_test(void)55 do_test (void)
56 {
57 TEST_VERIFY (foo () == 1);
58 TEST_VERIFY (saved_arg1 & _IFUNC_ARG_HWCAP);
59 TEST_COMPARE ((uint32_t)saved_arg1, (uint32_t)getauxval (AT_HWCAP));
60 TEST_COMPARE (saved_arg2._size, sizeof (__ifunc_arg_t));
61 TEST_COMPARE (saved_arg2._hwcap, getauxval (AT_HWCAP));
62 TEST_COMPARE (saved_arg2._hwcap2, getauxval (AT_HWCAP2));
63 return 0;
64 }
65
66 #include <support/test-driver.c>
67