From b1e4d6cabd3c11088eda61cfe0fe9956629baa9d Mon Sep 17 00:00:00 2001 From: Packit Service Date: Dec 15 2020 07:38:46 +0000 Subject: Apply patch glibc-rh1659438-45.patch patch_name: glibc-rh1659438-45.patch present_in_specfile: true location_in_specfile: 138 --- diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile index fb104af..9146b32 100644 --- a/sysdeps/s390/Makefile +++ b/sysdeps/s390/Makefile @@ -68,5 +68,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \ wcpncpy wcpncpy-vx wcpncpy-c \ wcscat wcscat-vx wcscat-c \ wcsncat wcsncat-vx wcsncat-c \ - wcscmp wcscmp-vx wcscmp-c + wcscmp wcscmp-vx wcscmp-c \ + wcsncmp wcsncmp-vx wcsncmp-c endif diff --git a/sysdeps/s390/ifunc-wcsncmp.h b/sysdeps/s390/ifunc-wcsncmp.h new file mode 100644 index 0000000..3a22bc9 --- /dev/null +++ b/sysdeps/s390/ifunc-wcsncmp.h @@ -0,0 +1,52 @@ +/* wcsncmp variant information on S/390 version. + Copyright (C) 2018 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 + . */ + +#if defined USE_MULTIARCH && IS_IN (libc) \ + && ! defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT +# define HAVE_WCSNCMP_IFUNC 1 +#else +# define HAVE_WCSNCMP_IFUNC 0 +#endif + +#ifdef HAVE_S390_VX_ASM_SUPPORT +# define HAVE_WCSNCMP_IFUNC_AND_VX_SUPPORT HAVE_WCSNCMP_IFUNC +#else +# define HAVE_WCSNCMP_IFUNC_AND_VX_SUPPORT 0 +#endif + +#if defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT +# define WCSNCMP_DEFAULT WCSNCMP_Z13 +# define HAVE_WCSNCMP_C 0 +# define HAVE_WCSNCMP_Z13 1 +#else +# define WCSNCMP_DEFAULT WCSNCMP_C +# define HAVE_WCSNCMP_C 1 +# define HAVE_WCSNCMP_Z13 HAVE_WCSNCMP_IFUNC_AND_VX_SUPPORT +#endif + +#if HAVE_WCSNCMP_C +# define WCSNCMP_C __wcsncmp_c +#else +# define WCSNCMP_C NULL +#endif + +#if HAVE_WCSNCMP_Z13 +# define WCSNCMP_Z13 __wcsncmp_vx +#else +# define WCSNCMP_Z13 NULL +#endif diff --git a/sysdeps/s390/multiarch/Makefile b/sysdeps/s390/multiarch/Makefile index 70162d0..d1740fa 100644 --- a/sysdeps/s390/multiarch/Makefile +++ b/sysdeps/s390/multiarch/Makefile @@ -1,6 +1,5 @@ ifeq ($(subdir),wcsmbs) -sysdep_routines += wcsncmp wcsncmp-vx wcsncmp-c \ - wcschr wcschr-vx wcschr-c \ +sysdep_routines += wcschr wcschr-vx wcschr-c \ wcschrnul wcschrnul-vx wcschrnul-c \ wcsrchr wcsrchr-vx wcsrchr-c \ wcsspn wcsspn-vx wcsspn-c \ diff --git a/sysdeps/s390/multiarch/ifunc-impl-list.c b/sysdeps/s390/multiarch/ifunc-impl-list.c index f461063..8c9e788 100644 --- a/sysdeps/s390/multiarch/ifunc-impl-list.c +++ b/sysdeps/s390/multiarch/ifunc-impl-list.c @@ -55,6 +55,7 @@ #include #include #include +#include /* Maximum number of IFUNC implementations. */ #define MAX_IFUNC 3 @@ -541,6 +542,18 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, ) #endif /* HAVE_WCSCMP_IFUNC */ +#if HAVE_WCSNCMP_IFUNC + IFUNC_IMPL (i, name, wcsncmp, +# if HAVE_WCSNCMP_Z13 + IFUNC_IMPL_ADD (array, i, wcsncmp, + dl_hwcap & HWCAP_S390_VX, WCSNCMP_Z13) +# endif +# if HAVE_WCSNCMP_C + IFUNC_IMPL_ADD (array, i, wcsncmp, 1, WCSNCMP_C) +# endif + ) +#endif /* HAVE_WCSNCMP_IFUNC */ + #ifdef HAVE_S390_VX_ASM_SUPPORT # define IFUNC_VX_IMPL(FUNC) \ @@ -549,8 +562,6 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array, __##FUNC##_vx) \ IFUNC_IMPL_ADD (array, i, FUNC, 1, __##FUNC##_c)) - IFUNC_VX_IMPL (wcsncmp); - IFUNC_VX_IMPL (wcschr); IFUNC_VX_IMPL (wcschrnul); diff --git a/sysdeps/s390/multiarch/wcsncmp-c.c b/sysdeps/s390/multiarch/wcsncmp-c.c deleted file mode 100644 index 92ab5e8..0000000 --- a/sysdeps/s390/multiarch/wcsncmp-c.c +++ /dev/null @@ -1,25 +0,0 @@ -/* Default wcsncmp implementation for S/390. - Copyright (C) 2015-2018 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 - . */ - -#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) -# define WCSNCMP __wcsncmp_c - -# include -extern __typeof (wcsncmp) __wcsncmp_c; -# include -#endif diff --git a/sysdeps/s390/multiarch/wcsncmp-vx.S b/sysdeps/s390/multiarch/wcsncmp-vx.S deleted file mode 100644 index 34c203b..0000000 --- a/sysdeps/s390/multiarch/wcsncmp-vx.S +++ /dev/null @@ -1,177 +0,0 @@ -/* Vector optimized 32/64 bit S/390 version of wcsncmp. - Copyright (C) 2015-2018 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 - . */ - -#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) - -# include "sysdep.h" -# include "asm-syntax.h" - - .text - -/* int wcsncmp (const wchar_t *s1, const wchar_t *s2, size_t n) - Compare at most n characters of two strings. - - Register usage: - -r0=tmp - -r1=tmp - -r2=s1 - -r3=s2 - -r4=n - -r5=current_len - -v16=part of s1 - -v17=part of s2 - -v18=index of unequal -*/ -ENTRY(__wcsncmp_vx) - .machine "z13" - .machinemode "zarch_nohighgprs" - -# if !defined __s390x__ - llgfr %r4,%r4 -# endif /* !defined __s390x__ */ - - clgije %r4,0,.Lend_equal /* Nothing to do if n == 0. */ - - /* Check range of n and convert to byte-count. */ -# ifdef __s390x__ - tmhh %r4,49152 /* Test bit 0 or 1 of maxlen. */ - lghi %r1,-4 /* Max byte-count is 18446744073709551612. */ -# else - tmlh %r4,49152 /* Test bit 0 or 1 of maxlen. */ - llilf %r1,4294967292 /* Max byte-count is 4294967292. */ -# endif /* !__s390x__ */ - sllg %r4,%r4,2 /* Convert character-count to byte-count. */ - locgrne %r4,%r1 /* Use max byte-count, if bit 0/1 was one. */ - - /* Check first character without vector load. */ - lghi %r5,4 /* current_len = 4 bytes. */ - /* Check s1/2[0]. */ - lt %r0,0(%r2) - l %r1,0(%r3) - je .Lend_cmp_one_char - crjne %r0,%r1,.Lend_cmp_one_char - -.Lloop: - vlbb %v17,0(%r5,%r3),6 /* Load s2 to block boundary. */ - vlbb %v16,0(%r5,%r2),6 /* Load s1 to block boundary. */ - lcbb %r0,0(%r5,%r2),6 /* Get loaded byte count of s1. */ - jo .Llt16_1 /* Jump away if vector not fully loaded. */ - lcbb %r1,0(%r5,%r3),6 /* Get loaded byte count of s2. */ - jo .Llt16_2 /* Jump away if vector not fully loaded. */ - aghi %r5,16 /* Both vectors are fully loaded. */ - vfenezfs %v18,%v16,%v17 /* Compare not equal with zero search. */ - clgrjhe %r5,%r4,.Llastcmp /* If current_len >= n ->last compare. */ - jno .Lfound - - vlbb %v17,0(%r5,%r3),6 - vlbb %v16,0(%r5,%r2),6 - lcbb %r0,0(%r5,%r2),6 - jo .Llt16_1 - lcbb %r1,0(%r5,%r3),6 - jo .Llt16_2 - aghi %r5,16 - vfenezfs %v18,%v16,%v17 - clgrjhe %r5,%r4,.Llastcmp - jno .Lfound - - vlbb %v17,0(%r5,%r3),6 - vlbb %v16,0(%r5,%r2),6 - lcbb %r0,0(%r5,%r2),6 - jo .Llt16_1 - lcbb %r1,0(%r5,%r3),6 - jo .Llt16_2 - aghi %r5,16 - vfenezfs %v18,%v16,%v17 - clgrjhe %r5,%r4,.Llastcmp - jno .Lfound - - vlbb %v17,0(%r5,%r3),6 - vlbb %v16,0(%r5,%r2),6 - lcbb %r0,0(%r5,%r2),6 - jo .Llt16_1 - lcbb %r1,0(%r5,%r3),6 - jo .Llt16_2 - aghi %r5,16 - vfenezfs %v18,%v16,%v17 - clgrjhe %r5,%r4,.Llastcmp - jno .Lfound - - j .Lloop - -.Llt16_1: - lcbb %r1,0(%r5,%r3),6 /* Get loaded byte count of s2. */ -.Llt16_2: - clr %r0,%r1 /* Compare logical. */ - locrh %r0,%r1 /* Compute minimum of bytes loaded. */ - nill %r0,65532 /* Align bytes loaded to full characters. */ - jz .Lcmp_one_char /* Jump away if no full char is available. */ -.Llt_cmp: - algfr %r5,%r0 /* Add smallest loaded bytes to current_len. */ - vfenezfs %v18,%v16,%v17 /* Compare not equal with zero search. */ - clgrj %r5,%r4,10,.Llastcmp /* If current_len >= n -> last compare */ - vlgvb %r1,%v18,7 /* Get not equal index or 16 if all equal. */ - clrjl %r1,%r0,.Lfound /* Jump away if miscompare is within - loaded bytes; (index < loaded-bytes) */ - j .Lloop - -.Lcmp_one_char: - /* At least one of both strings is not 4-byte aligned - and there is no full character before next block-boundary. - Compare one character to get over the boundary and - proceed with normal loop! */ - vlef %v16,0(%r5,%r2),0 /* Load one character. */ - lghi %r0,4 /* Loaded byte count is 4. */ - vlef %v17,0(%r5,%r3),0 - j .Llt_cmp /* Proceed with comparision. */ - -.Llastcmp: - /* Use comparision result only if located within first n characters. - %r0: loaded byte count in vreg; - %r5: current_len; - %r4: n; - (current_len - n): [0...16[ - First ignored match index: loaded bytes - (current_len-n): ]0...16] - */ - slgr %r5,%r4 /* %r5 = current_len - n. */ - slr %r0,%r5 /* %r0 = first ignored match index. */ - vlgvb %r4,%v18,7 /* Get not equal index or 16 if all equal. */ - clrjl %r4,%r0,.Lfound2 /* Jump away if miscompare is within - loaded bytes and below n bytes. */ -.Lend_equal: - lghi %r2,0 - br %r14 - -.Lfound: - /* Difference or end of string. */ - /* vfenezf found an unequal element or zero. - This instruction compares unsigned words, but wchar_t is signed. - Thus we have to compare the found element again. */ - vlgvb %r4,%v18,7 /* Extract not equal byte-index. */ -.Lfound2: - srl %r4,2 /* And convert it to character-index. */ - vlgvf %r0,%v16,0(%r4) /* Load character-values. */ - vlgvf %r1,%v17,0(%r4) -.Lend_cmp_one_char: - cr %r0,%r1 - je .Lend_equal - lghi %r2,1 - lghi %r1,-1 - locgrl %r2,%r1 - br %r14 -END(__wcsncmp_vx) -#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */ diff --git a/sysdeps/s390/multiarch/wcsncmp.c b/sysdeps/s390/multiarch/wcsncmp.c deleted file mode 100644 index ee5f08c..0000000 --- a/sysdeps/s390/multiarch/wcsncmp.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Multiple versions of wcsncmp. - Copyright (C) 2015-2018 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 - . */ - -#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) -# include -# include - -s390_vx_libc_ifunc2 (__wcsncmp, wcsncmp) - -#else -# include -#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */ diff --git a/sysdeps/s390/wcsncmp-c.c b/sysdeps/s390/wcsncmp-c.c new file mode 100644 index 0000000..a9ccb8d --- /dev/null +++ b/sysdeps/s390/wcsncmp-c.c @@ -0,0 +1,27 @@ +/* Default wcsncmp implementation for S/390. + Copyright (C) 2015-2018 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 + . */ + +#include + +#if HAVE_WCSNCMP_C +# if HAVE_WCSNCMP_IFUNC +# define WCSNCMP WCSNCMP_C +# endif + +# include +#endif diff --git a/sysdeps/s390/wcsncmp-vx.S b/sysdeps/s390/wcsncmp-vx.S new file mode 100644 index 0000000..9bdd21a --- /dev/null +++ b/sysdeps/s390/wcsncmp-vx.S @@ -0,0 +1,182 @@ +/* Vector optimized 32/64 bit S/390 version of wcsncmp. + Copyright (C) 2015-2018 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 + . */ + +#include +#if HAVE_WCSNCMP_Z13 + +# include "sysdep.h" +# include "asm-syntax.h" + + .text + +/* int wcsncmp (const wchar_t *s1, const wchar_t *s2, size_t n) + Compare at most n characters of two strings. + + Register usage: + -r0=tmp + -r1=tmp + -r2=s1 + -r3=s2 + -r4=n + -r5=current_len + -v16=part of s1 + -v17=part of s2 + -v18=index of unequal +*/ +ENTRY(WCSNCMP_Z13) + .machine "z13" + .machinemode "zarch_nohighgprs" + +# if !defined __s390x__ + llgfr %r4,%r4 +# endif /* !defined __s390x__ */ + + clgije %r4,0,.Lend_equal /* Nothing to do if n == 0. */ + + /* Check range of n and convert to byte-count. */ +# ifdef __s390x__ + tmhh %r4,49152 /* Test bit 0 or 1 of maxlen. */ + lghi %r1,-4 /* Max byte-count is 18446744073709551612. */ +# else + tmlh %r4,49152 /* Test bit 0 or 1 of maxlen. */ + llilf %r1,4294967292 /* Max byte-count is 4294967292. */ +# endif /* !__s390x__ */ + sllg %r4,%r4,2 /* Convert character-count to byte-count. */ + locgrne %r4,%r1 /* Use max byte-count, if bit 0/1 was one. */ + + /* Check first character without vector load. */ + lghi %r5,4 /* current_len = 4 bytes. */ + /* Check s1/2[0]. */ + lt %r0,0(%r2) + l %r1,0(%r3) + je .Lend_cmp_one_char + crjne %r0,%r1,.Lend_cmp_one_char + +.Lloop: + vlbb %v17,0(%r5,%r3),6 /* Load s2 to block boundary. */ + vlbb %v16,0(%r5,%r2),6 /* Load s1 to block boundary. */ + lcbb %r0,0(%r5,%r2),6 /* Get loaded byte count of s1. */ + jo .Llt16_1 /* Jump away if vector not fully loaded. */ + lcbb %r1,0(%r5,%r3),6 /* Get loaded byte count of s2. */ + jo .Llt16_2 /* Jump away if vector not fully loaded. */ + aghi %r5,16 /* Both vectors are fully loaded. */ + vfenezfs %v18,%v16,%v17 /* Compare not equal with zero search. */ + clgrjhe %r5,%r4,.Llastcmp /* If current_len >= n ->last compare. */ + jno .Lfound + + vlbb %v17,0(%r5,%r3),6 + vlbb %v16,0(%r5,%r2),6 + lcbb %r0,0(%r5,%r2),6 + jo .Llt16_1 + lcbb %r1,0(%r5,%r3),6 + jo .Llt16_2 + aghi %r5,16 + vfenezfs %v18,%v16,%v17 + clgrjhe %r5,%r4,.Llastcmp + jno .Lfound + + vlbb %v17,0(%r5,%r3),6 + vlbb %v16,0(%r5,%r2),6 + lcbb %r0,0(%r5,%r2),6 + jo .Llt16_1 + lcbb %r1,0(%r5,%r3),6 + jo .Llt16_2 + aghi %r5,16 + vfenezfs %v18,%v16,%v17 + clgrjhe %r5,%r4,.Llastcmp + jno .Lfound + + vlbb %v17,0(%r5,%r3),6 + vlbb %v16,0(%r5,%r2),6 + lcbb %r0,0(%r5,%r2),6 + jo .Llt16_1 + lcbb %r1,0(%r5,%r3),6 + jo .Llt16_2 + aghi %r5,16 + vfenezfs %v18,%v16,%v17 + clgrjhe %r5,%r4,.Llastcmp + jno .Lfound + + j .Lloop + +.Llt16_1: + lcbb %r1,0(%r5,%r3),6 /* Get loaded byte count of s2. */ +.Llt16_2: + clr %r0,%r1 /* Compare logical. */ + locrh %r0,%r1 /* Compute minimum of bytes loaded. */ + nill %r0,65532 /* Align bytes loaded to full characters. */ + jz .Lcmp_one_char /* Jump away if no full char is available. */ +.Llt_cmp: + algfr %r5,%r0 /* Add smallest loaded bytes to current_len. */ + vfenezfs %v18,%v16,%v17 /* Compare not equal with zero search. */ + clgrj %r5,%r4,10,.Llastcmp /* If current_len >= n -> last compare */ + vlgvb %r1,%v18,7 /* Get not equal index or 16 if all equal. */ + clrjl %r1,%r0,.Lfound /* Jump away if miscompare is within + loaded bytes; (index < loaded-bytes) */ + j .Lloop + +.Lcmp_one_char: + /* At least one of both strings is not 4-byte aligned + and there is no full character before next block-boundary. + Compare one character to get over the boundary and + proceed with normal loop! */ + vlef %v16,0(%r5,%r2),0 /* Load one character. */ + lghi %r0,4 /* Loaded byte count is 4. */ + vlef %v17,0(%r5,%r3),0 + j .Llt_cmp /* Proceed with comparision. */ + +.Llastcmp: + /* Use comparision result only if located within first n characters. + %r0: loaded byte count in vreg; + %r5: current_len; + %r4: n; + (current_len - n): [0...16[ + First ignored match index: loaded bytes - (current_len-n): ]0...16] + */ + slgr %r5,%r4 /* %r5 = current_len - n. */ + slr %r0,%r5 /* %r0 = first ignored match index. */ + vlgvb %r4,%v18,7 /* Get not equal index or 16 if all equal. */ + clrjl %r4,%r0,.Lfound2 /* Jump away if miscompare is within + loaded bytes and below n bytes. */ +.Lend_equal: + lghi %r2,0 + br %r14 + +.Lfound: + /* Difference or end of string. */ + /* vfenezf found an unequal element or zero. + This instruction compares unsigned words, but wchar_t is signed. + Thus we have to compare the found element again. */ + vlgvb %r4,%v18,7 /* Extract not equal byte-index. */ +.Lfound2: + srl %r4,2 /* And convert it to character-index. */ + vlgvf %r0,%v16,0(%r4) /* Load character-values. */ + vlgvf %r1,%v17,0(%r4) +.Lend_cmp_one_char: + cr %r0,%r1 + je .Lend_equal + lghi %r2,1 + lghi %r1,-1 + locgrl %r2,%r1 + br %r14 +END(WCSNCMP_Z13) + +# if ! HAVE_WCSNCMP_IFUNC +strong_alias (WCSNCMP_Z13, wcsncmp) +# endif +#endif diff --git a/sysdeps/s390/wcsncmp.c b/sysdeps/s390/wcsncmp.c new file mode 100644 index 0000000..101db44 --- /dev/null +++ b/sysdeps/s390/wcsncmp.c @@ -0,0 +1,38 @@ +/* Multiple versions of wcsncmp. + Copyright (C) 2015-2018 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 + . */ + +#include + +#if HAVE_WCSNCMP_IFUNC +# include +# include + +# if HAVE_WCSNCMP_C +extern __typeof (wcsncmp) WCSNCMP_C attribute_hidden; +# endif + +# if HAVE_WCSNCMP_Z13 +extern __typeof (wcsncmp) WCSNCMP_Z13 attribute_hidden; +# endif + +s390_libc_ifunc_expr (wcsncmp, wcsncmp, + (HAVE_WCSNCMP_Z13 && (hwcap & HWCAP_S390_VX)) + ? WCSNCMP_Z13 + : WCSNCMP_DEFAULT + ) +#endif