1/* IFUNC resolver function for CPU specific functions.
2 32/64 bit S/390 version.
3 Copyright (C) 2015-2024 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <unistd.h>
21#include <dl-procinfo.h>
22#include <cpu-features.h>
23
24#define s390_libc_ifunc_expr_stfle_init() \
25 const unsigned long long *stfle_bits = features->stfle_bits;
26
27#define s390_libc_ifunc_expr_init() \
28 const struct cpu_features *features = &GLRO(dl_s390_cpu_features); \
29 /* The hwcap from kernel is passed as argument, but we \
30 explicitly use the hwcaps from cpu-features struct. */ \
31 hwcap = features->hwcap;
32
33#define s390_libc_ifunc_expr(TYPE_FUNC, FUNC, EXPR) \
34 __ifunc (TYPE_FUNC, FUNC, EXPR, unsigned long int hwcap, \
35 s390_libc_ifunc_expr_init);
36

source code of glibc/sysdeps/s390/multiarch/ifunc-resolve.h