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d337345c 1/* Check for hardware capabilities after HWCAP parsing. powerpc64le version.
581c785b 2 Copyright (C) 2021-2022 Free Software Foundation, Inc.
d337345c
FW
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#ifndef _DL_HWCAP_CHECK_H
20#define _DL_HWCAP_CHECK_H
21
22#include <ldsodefs.h>
23
24static inline void
25dl_hwcap_check (void)
26{
27#ifdef _ARCH_PWR9
28 if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_00) == 0)
29 _dl_fatal_printf ("\
30Fatal glibc error: CPU lacks ISA 3.00 support (POWER9 or later required)\n");
31#endif
32#ifdef __FLOAT128_HARDWARE__
33 if ((GLRO (dl_hwcap2) & PPC_FEATURE2_HAS_IEEE128) == 0)
34 _dl_fatal_printf ("\
35Fatal glibc error: CPU lacks float128 support (POWER 9 or later required)\n");
36#endif
37 /* This check is not actually reached when building for POWER10 and
38 running on POWER9 because there are faulting PCREL instructions
39 before this point. */
40#if defined _ARCH_PWR10 || defined __PCREL__
41 if ((GLRO (dl_hwcap2) & PPC_FEATURE2_ARCH_3_1) == 0)
42 _dl_fatal_printf ("\
43Fatal glibc error: CPU lacks ISA 3.10 support (POWER10 or later required)\n");
44#endif
45#ifdef __MMA__
46 if ((GLRO (dl_hwcap2) & PPC_FEATURE2_MMA) == 0)
47 _dl_fatal_printf ("\
48Fatal glibc error: CPU lacks MMA support (POWER10 or later required)\n");
49#endif
50}
51
52#endif /* _DL_HWCAP_CHECK_H */