1 /* Architecture-specific glibc-hwcaps subdirectories. powerpc64le version.
2 Copyright (C) 2020-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <dl-hwcaps.h>
22 const char _dl_hwcaps_subdirs
[] = "power10:power9";
23 enum { subdirs_count
= 2 }; /* Number of components in _dl_hwcaps_subdirs. */
26 _dl_hwcaps_subdirs_active (void)
30 /* Test in reverse preference order. Altivec and VSX are implied by
31 the powerpc64le ABI definition. */
33 /* POWER9. GCC enables float128 hardware support for -mcpu=power9. */
34 if ((GLRO (dl_hwcap2
) & PPC_FEATURE2_ARCH_3_00
) == 0
35 || (GLRO (dl_hwcap2
) & PPC_FEATURE2_HAS_IEEE128
) == 0)
36 return _dl_hwcaps_subdirs_build_bitmask (subdirs_count
, active
);
39 /* POWER10. GCC defines __MMA__ for -mcpu=power10. */
40 if ((GLRO (dl_hwcap2
) & PPC_FEATURE2_ARCH_3_1
) == 0
41 || (GLRO (dl_hwcap2
) & PPC_FEATURE2_MMA
) == 0)
42 return _dl_hwcaps_subdirs_build_bitmask (subdirs_count
, active
);
45 return _dl_hwcaps_subdirs_build_bitmask (subdirs_count
, active
);