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0c03cb54c8
The new IBM z16 is added to platform string array.
The macro _DL_PLATFORMS_COUNT is incremented.
_dl_hwcaps_subdir is extended by "z16" if HWCAP_S390_VXRS_PDE2
is set. HWCAP_S390_NNPA is not tested in _dl_hwcaps_subdirs_active
as those instructions may be replaced or removed in future.
tst-glibc-hwcaps.c is extended in order to test z16 via new marker5.
A fatal glibc error is dumped if glibc was build with architecture
level set for z16, but run on an older machine. (See dl-hwcap-check.h)
(cherry picked from commit 2376944b9e)
45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
/* Check for hardware capabilities after HWCAP parsing. S390 version.
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Copyright (C) 2021 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _DL_HWCAP_CHECK_H
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#define _DL_HWCAP_CHECK_H
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#include <ldsodefs.h>
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static inline void
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dl_hwcap_check (void)
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{
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#if defined __ARCH__
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# if __ARCH__ >= 14
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if (!(GLRO(dl_hwcap) & HWCAP_S390_VXRS_PDE2))
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_dl_fatal_printf ("\
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Fatal glibc error: CPU lacks VXRS_PDE2 support (z16 or later required)\n");
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# elif __ARCH__ >= 13
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if (!(GLRO(dl_hwcap) & HWCAP_S390_VXRS_EXT2))
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_dl_fatal_printf ("\
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Fatal glibc error: CPU lacks VXRS_EXT2 support (z15 or later required)\n");
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# elif __ARCH__ >= 12
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if (!(GLRO(dl_hwcap) & HWCAP_S390_VXE))
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_dl_fatal_printf ("\
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Fatal glibc error: CPU lacks VXE support (z14 or later required)\n");
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# endif
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#endif /* __ARCH__ */
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}
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#endif /* _DL_HWCAP_CHECK_H */
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