--- /dev/null
+/* Enumerate available IFUNC implementations of a function. x86-64 version.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <assert.h>
+#include <string.h>
+#include <wchar.h>
+#include <ifunc-impl-list.h>
+#include "init-arch.h"
+
+/* Maximum number of IFUNC implementations. */
+#define MAX_IFUNC 4
+
+/* Fill ARRAY of MAX elements with IFUNC implementations for function
+ NAME supported on target machine and return the number of valid
+ entries. */
+
+size_t
+__libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
+ size_t max)
+{
+ assert (max >= MAX_IFUNC);
+
+ size_t i = 0;
+
+ /* Support sysdeps/x86_64/multiarch/memcmp.S. */
+ IFUNC_IMPL (i, name, memcmp,
+ IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSE4_1,
+ __memcmp_sse4_1)
+ IFUNC_IMPL_ADD (array, i, memcmp, HAS_SSSE3, __memcmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/memmove_chk.S. */
+ IFUNC_IMPL (i, name, __memmove_chk,
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
+ __memmove_chk_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, HAS_SSSE3,
+ __memmove_chk_ssse3)
+ IFUNC_IMPL_ADD (array, i, __memmove_chk, 1,
+ __memmove_chk_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/memmove.S. */
+ IFUNC_IMPL (i, name, memmove,
+ IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
+ __memmove_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, memmove, HAS_SSSE3,
+ __memmove_ssse3)
+ IFUNC_IMPL_ADD (array, i, memmove, 1, __memmove_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/memset_chk.S. */
+ IFUNC_IMPL (i, name, __memset_chk,
+ IFUNC_IMPL_ADD (array, i, __memset_chk, 1, __memset_chk_sse2)
+ IFUNC_IMPL_ADD (array, i, __memset_chk, 1,
+ __memset_chk_x86_64))
+
+ /* Support sysdeps/x86_64/multiarch/memset.S. */
+ IFUNC_IMPL (i, name, memset,
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_sse2)
+ IFUNC_IMPL_ADD (array, i, memset, 1, __memset_x86_64))
+
+ /* Support sysdeps/x86_64/multiarch/rawmemchr.S. */
+ IFUNC_IMPL (i, name, rawmemchr,
+ IFUNC_IMPL_ADD (array, i, rawmemchr, HAS_SSE4_2,
+ __rawmemchr_sse42)
+ IFUNC_IMPL_ADD (array, i, rawmemchr, 1, __rawmemchr_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/stpncpy.S. */
+ IFUNC_IMPL (i, name, stpncpy,
+ IFUNC_IMPL_ADD (array, i, stpncpy, HAS_SSSE3,
+ __stpncpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, stpncpy, 1,
+ __stpncpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, stpncpy, 1, __stpncpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/stpcpy.S. */
+ IFUNC_IMPL (i, name, stpcpy,
+ IFUNC_IMPL_ADD (array, i, stpcpy, HAS_SSSE3, __stpcpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, stpcpy, 1, __stpcpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcasecmp_l.S. */
+ IFUNC_IMPL (i, name, strcasecmp,
+ IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_AVX,
+ __strcasecmp_avx)
+ IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_SSE4_2,
+ __strcasecmp_sse42)
+ IFUNC_IMPL_ADD (array, i, strcasecmp, HAS_SSSE3,
+ __strcasecmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, strcasecmp, 1, __strcasecmp_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcasecmp_l.S. */
+ IFUNC_IMPL (i, name, strcasecmp_l,
+ IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_AVX,
+ __strcasecmp_l_avx)
+ IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_SSE4_2,
+ __strcasecmp_l_sse42)
+ IFUNC_IMPL_ADD (array, i, strcasecmp_l, HAS_SSSE3,
+ __strcasecmp_l_ssse3)
+ IFUNC_IMPL_ADD (array, i, strcasecmp_l, 1,
+ __strcasecmp_l_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcasestr.c. */
+ IFUNC_IMPL (i, name, strcasestr,
+ IFUNC_IMPL_ADD (array, i, strcasestr, HAS_SSE4_2,
+ __strcasestr_sse42)
+ IFUNC_IMPL_ADD (array, i, strcasestr, 1, __strcasestr_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcat.S. */
+ IFUNC_IMPL (i, name, strcat,
+ IFUNC_IMPL_ADD (array, i, strcat, HAS_SSSE3, __strcat_ssse3)
+ IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, strcat, 1, __strcat_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strchr.S. */
+ IFUNC_IMPL (i, name, strchr,
+ IFUNC_IMPL_ADD (array, i, strchr, HAS_SSE4_2, __strchr_sse42)
+ IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2_no_bsf)
+ IFUNC_IMPL_ADD (array, i, strchr, 1, __strchr_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcmp.S. */
+ IFUNC_IMPL (i, name, strcmp,
+ IFUNC_IMPL_ADD (array, i, strcmp, HAS_SSE4_2, __strcmp_sse42)
+ IFUNC_IMPL_ADD (array, i, strcmp, HAS_SSSE3, __strcmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, strcmp, 1, __strcmp_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcpy.S. */
+ IFUNC_IMPL (i, name, strcpy,
+ IFUNC_IMPL_ADD (array, i, strcpy, HAS_SSSE3, __strcpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, strcpy, 1, __strcpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strcspn.S. */
+ IFUNC_IMPL (i, name, strcspn,
+ IFUNC_IMPL_ADD (array, i, strcspn, HAS_SSE4_2,
+ __strcspn_sse42)
+ IFUNC_IMPL_ADD (array, i, strcspn, 1, __strcspn_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strncase_l.S. */
+ IFUNC_IMPL (i, name, strncasecmp,
+ IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_AVX,
+ __strncasecmp_avx)
+ IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_SSE4_2,
+ __strncasecmp_sse42)
+ IFUNC_IMPL_ADD (array, i, strncasecmp, HAS_SSSE3,
+ __strncasecmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, strncasecmp, 1,
+ __strncasecmp_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strncase_l.S. */
+ IFUNC_IMPL (i, name, strncasecmp_l,
+ IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_AVX,
+ __strncasecmp_l_avx)
+ IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_SSE4_2,
+ __strncasecmp_l_sse42)
+ IFUNC_IMPL_ADD (array, i, strncasecmp_l, HAS_SSSE3,
+ __strncasecmp_l_ssse3)
+ IFUNC_IMPL_ADD (array, i, strncasecmp_l, 1,
+ __strncasecmp_l_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strncat.S. */
+ IFUNC_IMPL (i, name, strncat,
+ IFUNC_IMPL_ADD (array, i, strncat, HAS_SSSE3,
+ __strncat_ssse3)
+ IFUNC_IMPL_ADD (array, i, strncat, 1,
+ __strncat_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, strncat, 1, __strncat_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strncpy.S. */
+ IFUNC_IMPL (i, name, strncpy,
+ IFUNC_IMPL_ADD (array, i, strncpy, HAS_SSSE3,
+ __strncpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, strncpy, 1,
+ __strncpy_sse2_unaligned)
+ IFUNC_IMPL_ADD (array, i, strncpy, 1, __strncpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strnlen.S. */
+ IFUNC_IMPL (i, name, strnlen,
+ IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2_no_bsf)
+ IFUNC_IMPL_ADD (array, i, strnlen, 1, __strnlen_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strpbrk.S. */
+ IFUNC_IMPL (i, name, strpbrk,
+ IFUNC_IMPL_ADD (array, i, strpbrk, HAS_SSE4_2,
+ __strpbrk_sse42)
+ IFUNC_IMPL_ADD (array, i, strpbrk, 1, __strpbrk_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strrchr.S. */
+ IFUNC_IMPL (i, name, strrchr,
+ IFUNC_IMPL_ADD (array, i, strrchr, HAS_SSE4_2,
+ __strrchr_sse42)
+ IFUNC_IMPL_ADD (array, i, strrchr, 1, __strrchr_sse2_no_bsf)
+ IFUNC_IMPL_ADD (array, i, strrchr, 1, __strrchr_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strspn.S. */
+ IFUNC_IMPL (i, name, strspn,
+ IFUNC_IMPL_ADD (array, i, strspn, HAS_SSE4_2, __strspn_sse42)
+ IFUNC_IMPL_ADD (array, i, strspn, 1, __strspn_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strstr-c.c. */
+ IFUNC_IMPL (i, name, strstr,
+ IFUNC_IMPL_ADD (array, i, strstr, HAS_SSE4_2, __strstr_sse42)
+ IFUNC_IMPL_ADD (array, i, strstr, 1, __strstr_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/wcscpy.S. */
+ IFUNC_IMPL (i, name, wcscpy,
+ IFUNC_IMPL_ADD (array, i, wcscpy, HAS_SSSE3, __wcscpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, wcscpy, 1, __wcscpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/wmemcmp.S. */
+ IFUNC_IMPL (i, name, wmemcmp,
+ IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_SSE4_1,
+ __wmemcmp_sse4_1)
+ IFUNC_IMPL_ADD (array, i, wmemcmp, HAS_SSSE3,
+ __wmemcmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, wmemcmp, 1, __wmemcmp_sse2))
+
+#ifdef SHARED
+ /* Support sysdeps/x86_64/multiarch/memcpy_chk.S. */
+ IFUNC_IMPL (i, name, __memcpy_chk,
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
+ __memcpy_chk_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, HAS_SSSE3,
+ __memcpy_chk_ssse3)
+ IFUNC_IMPL_ADD (array, i, __memcpy_chk, 1,
+ __memcpy_chk_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/memcpy.S. */
+ IFUNC_IMPL (i, name, memcpy,
+ IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3,
+ __memcpy_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, memcpy, HAS_SSSE3, __memcpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/mempcpy_chk.S. */
+ IFUNC_IMPL (i, name, __mempcpy_chk,
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
+ __mempcpy_chk_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, HAS_SSSE3,
+ __mempcpy_chk_ssse3)
+ IFUNC_IMPL_ADD (array, i, __mempcpy_chk, 1,
+ __mempcpy_chk_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/mempcpy.S. */
+ IFUNC_IMPL (i, name, mempcpy,
+ IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
+ __mempcpy_ssse3_back)
+ IFUNC_IMPL_ADD (array, i, mempcpy, HAS_SSSE3,
+ __mempcpy_ssse3)
+ IFUNC_IMPL_ADD (array, i, mempcpy, 1, __mempcpy_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strlen.S. */
+ IFUNC_IMPL (i, name, strlen,
+ IFUNC_IMPL_ADD (array, i, strlen, HAS_SSE4_2, __strlen_sse42)
+ IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2_pminub)
+ IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2_no_bsf)
+ IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2)
+ IFUNC_IMPL_ADD (array, i, strlen, 1, __strlen_sse2))
+
+ /* Support sysdeps/x86_64/multiarch/strncmp.S. */
+ IFUNC_IMPL (i, name, strncmp,
+ IFUNC_IMPL_ADD (array, i, strncmp, HAS_SSE4_2,
+ __strncmp_sse42)
+ IFUNC_IMPL_ADD (array, i, strncmp, HAS_SSSE3,
+ __strncmp_ssse3)
+ IFUNC_IMPL_ADD (array, i, strncmp, 1, __strncmp_sse2))
+#endif
+
+ return i;
+}
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