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a46bb1523d
The default, power4, and power7 implementation just adds word aligned access when inputs have the same aligment. The unaligned case is still done by byte operations. This is already covered by the generic implementation, which also add the unaligned input optimization. Checked on powerpc-linux-gnu built without multi-arch for powerpc, power4, and power7. Reviewed-by: Rajalakshmi Srinivasaraghavan <rajis@linux.ibm.com>
171 lines
6.5 KiB
C
171 lines
6.5 KiB
C
/* Enumerate available IFUNC implementations of a function. PowerPC32 version.
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Copyright (C) 2013-2023 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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#include <assert.h>
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#include <string.h>
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#include <wchar.h>
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#include <ldsodefs.h>
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#include <ifunc-impl-list.h>
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size_t
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__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
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size_t max)
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{
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size_t i = max;
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unsigned long int hwcap = GLRO(dl_hwcap);
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/* hwcap contains only the latest supported ISA, the code checks which is
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and fills the previous supported ones. */
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if (hwcap & PPC_FEATURE_ARCH_2_06)
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hwcap |= PPC_FEATURE_ARCH_2_05 | PPC_FEATURE_POWER5_PLUS |
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PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_ARCH_2_05)
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hwcap |= PPC_FEATURE_POWER5_PLUS | PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_POWER5_PLUS)
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hwcap |= PPC_FEATURE_POWER5 | PPC_FEATURE_POWER4;
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else if (hwcap & PPC_FEATURE_POWER5)
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hwcap |= PPC_FEATURE_POWER4;
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#ifdef SHARED
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c. */
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IFUNC_IMPL (i, name, memcpy,
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_HAS_VSX,
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__memcpy_power7)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_06,
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__memcpy_a2)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_ARCH_2_05,
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__memcpy_power6)
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IFUNC_IMPL_ADD (array, i, memcpy, hwcap & PPC_FEATURE_CELL_BE,
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__memcpy_cell)
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IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c. */
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IFUNC_IMPL (i, name, memmove,
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IFUNC_IMPL_ADD (array, i, memmove, hwcap & PPC_FEATURE_HAS_VSX,
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__memmove_power7)
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IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memset.c. */
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IFUNC_IMPL (i, name, memset,
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IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_HAS_VSX,
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__memset_power7)
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IFUNC_IMPL_ADD (array, i, memset, hwcap & PPC_FEATURE_ARCH_2_05,
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__memset_power6)
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IFUNC_IMPL_ADD (array, i, memset, 1, __memset_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c. */
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IFUNC_IMPL (i, name, strlen,
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IFUNC_IMPL_ADD (array, i, strlen, hwcap & PPC_FEATURE_HAS_VSX,
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__strlen_power7)
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IFUNC_IMPL_ADD (array, i, strlen, 1,
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__strlen_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c. */
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IFUNC_IMPL (i, name, strnlen,
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IFUNC_IMPL_ADD (array, i, strnlen, hwcap & PPC_FEATURE_HAS_VSX,
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__strnlen_power7)
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IFUNC_IMPL_ADD (array, i, strnlen, 1,
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__strnlen_ppc))
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#endif
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c. */
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IFUNC_IMPL (i, name, memcmp,
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IFUNC_IMPL_ADD (array, i, memcmp, hwcap & PPC_FEATURE_HAS_VSX,
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__memcmp_power7)
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IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c. */
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IFUNC_IMPL (i, name, mempcpy,
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IFUNC_IMPL_ADD (array, i, mempcpy,
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hwcap & PPC_FEATURE_HAS_VSX,
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__mempcpy_power7)
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IFUNC_IMPL_ADD (array, i, mempcpy, 1,
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__mempcpy_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c. */
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IFUNC_IMPL (i, name, memchr,
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IFUNC_IMPL_ADD (array, i, memchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__memchr_power7)
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IFUNC_IMPL_ADD (array, i, memchr, 1,
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__memchr_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c. */
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IFUNC_IMPL (i, name, memrchr,
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IFUNC_IMPL_ADD (array, i, memrchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__memrchr_power7)
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IFUNC_IMPL_ADD (array, i, memrchr, 1,
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__memrchr_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c. */
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IFUNC_IMPL (i, name, rawmemchr,
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IFUNC_IMPL_ADD (array, i, rawmemchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__rawmemchr_power7)
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IFUNC_IMPL_ADD (array, i, rawmemchr, 1,
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__rawmemchr_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp.c. */
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IFUNC_IMPL (i, name, strcasecmp,
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IFUNC_IMPL_ADD (array, i, strcasecmp,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strcasecmp_power7)
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IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp_l.c. */
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IFUNC_IMPL (i, name, strcasecmp_l,
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IFUNC_IMPL_ADD (array, i, strcasecmp_l,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strcasecmp_l_power7)
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IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
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__strcasecmp_l_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase.c. */
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IFUNC_IMPL (i, name, strncasecmp,
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IFUNC_IMPL_ADD (array, i, strncasecmp,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strncasecmp_power7)
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IFUNC_IMPL_ADD (array, i, strncasecmp, 1, __strncasecmp_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strncase_l.c. */
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IFUNC_IMPL (i, name, strncasecmp_l,
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IFUNC_IMPL_ADD (array, i, strncasecmp_l,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strncasecmp_l_power7)
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IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
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__strncasecmp_l_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul.c. */
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IFUNC_IMPL (i, name, strchrnul,
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IFUNC_IMPL_ADD (array, i, strchrnul,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strchrnul_power7)
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IFUNC_IMPL_ADD (array, i, strchrnul, 1,
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__strchrnul_ppc))
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/* Support sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c. */
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IFUNC_IMPL (i, name, strchr,
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IFUNC_IMPL_ADD (array, i, strchr,
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hwcap & PPC_FEATURE_HAS_VSX,
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__strchr_power7)
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IFUNC_IMPL_ADD (array, i, strchr, 1,
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__strchr_ppc))
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return 0;
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}
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