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e4ca6de1bc
We use PPC_FEATURE_HAS_VSX to select a number of POWER7 optimised functions. These functions don't use any VSX instructions, so PPC_FEATURE_ARCH_2_06 seems like a better fit. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
/* Multiple versions of stpncpy. PowerPC64 version.
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Copyright (C) 2014-2021 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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#if IS_IN (libc)
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# define stpncpy __redirect_stpncpy
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# define __stpncpy __redirect___stpncpy
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# include <string.h>
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# include <shlib-compat.h>
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# include "init-arch.h"
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extern __typeof (__stpncpy) __stpncpy_ppc attribute_hidden;
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extern __typeof (__stpncpy) __stpncpy_power7 attribute_hidden;
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extern __typeof (__stpncpy) __stpncpy_power8 attribute_hidden;
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# ifdef __LITTLE_ENDIAN__
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extern __typeof (__stpncpy) __stpncpy_power9 attribute_hidden;
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# endif
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# undef stpncpy
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# undef __stpncpy
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libc_ifunc_redirected (__redirect___stpncpy, __stpncpy,
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# ifdef __LITTLE_ENDIAN__
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(hwcap2 & PPC_FEATURE2_ARCH_3_00) &&
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(hwcap & PPC_FEATURE_HAS_VSX)
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? __stpncpy_power9 :
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# endif
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(hwcap2 & PPC_FEATURE2_ARCH_2_07)
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? __stpncpy_power8
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: (hwcap & PPC_FEATURE_ARCH_2_06)
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? __stpncpy_power7
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: __stpncpy_ppc);
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weak_alias (__stpncpy, stpncpy)
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#endif
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