1/* Hardware capability support for run-time dynamic loader.
2 Copyright (C) 2017-2020 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 <elf/dl-tunables.h>
20
21#if HAVE_TUNABLES
22# define GET_HWCAP_MASK() TUNABLE_GET (glibc, cpu, hwcap_mask, uint64_t, NULL)
23#else
24# ifdef SHARED
25# define GET_HWCAP_MASK() GLRO(dl_hwcap_mask)
26# else
27/* HWCAP_MASK is ignored in static binaries when built without tunables. */
28# define GET_HWCAP_MASK() (0)
29# endif
30#endif
31