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glibc-utils
0040-S390-Refactor-memcpy-mempcpy-ifunc-handlin...
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File 0040-S390-Refactor-memcpy-mempcpy-ifunc-handling.patch of Package glibc-utils
2018-12-18 Stefan Liebler <stli@linux.ibm.com> * sysdeps/s390/ifunc-memcpy.h: New File. * sysdeps/s390/memcpy.S: Move to ... * sysdeps/s390/memcpy-z900.S ... here. Move implementations from memcpy-s390x.s to here. * sysdeps/s390/multiarch/memcpy-s390x.S: Delete File. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Remove memcpy/mempcpy variants. * sysdeps/s390/Makefile (sysdep_routines): Add memcpy/mempcpy variants. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Adjust ifunc variants for memcpy and mempcpy. * sysdeps/s390/multiarch/memcpy.c: Move ifunc resolver to ... * sysdeps/s390/memcpy.c: ... here. Adjust ifunc variants for memcpy. * sysdeps/s390/multiarch/mempcpy.c: Move to ... * sysdeps/s390/mempcpy.c: ... here. Adjust ifunc variants for mempcpy. * sysdeps/s390/mempcpy.S: Delete file. Index: glibc-2.22/sysdeps/s390/Makefile =================================================================== --- glibc-2.22.orig/sysdeps/s390/Makefile +++ glibc-2.22/sysdeps/s390/Makefile @@ -29,3 +29,7 @@ $(inst_gconvdir)/%.so: $(objpfx)%.so $(+ sysdeps-gconv-modules = ../sysdeps/s390/gconv-modules endif + +ifeq ($(subdir),string) +sysdep_routines += mempcpy memcpy memcpy-z900 +endif Index: glibc-2.22/sysdeps/s390/ifunc-memcpy.h =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/ifunc-memcpy.h @@ -0,0 +1,68 @@ +/* memcpy 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 + <http://www.gnu.org/licenses/>. */ + +#if defined SHARED && defined USE_MULTIARCH && IS_IN (libc) \ + && ! defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +# define HAVE_MEMCPY_IFUNC 1 +#else +# define HAVE_MEMCPY_IFUNC 0 +#endif + +#if defined HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT +# define MEMCPY_DEFAULT MEMCPY_Z196 +# define MEMPCPY_DEFAULT MEMPCPY_Z196 +# define HAVE_MEMCPY_Z900_G5 0 +# define HAVE_MEMCPY_Z10 0 +# define HAVE_MEMCPY_Z196 1 +#elif defined HAVE_S390_MIN_Z10_ZARCH_ASM_SUPPORT +# define MEMCPY_DEFAULT MEMCPY_Z10 +# define MEMPCPY_DEFAULT MEMPCPY_Z10 +# define HAVE_MEMCPY_Z900_G5 0 +# define HAVE_MEMCPY_Z10 1 +# define HAVE_MEMCPY_Z196 HAVE_MEMCPY_IFUNC +#else +# define MEMCPY_DEFAULT MEMCPY_Z900_G5 +# define MEMPCPY_DEFAULT MEMPCPY_Z900_G5 +# define HAVE_MEMCPY_Z900_G5 1 +# define HAVE_MEMCPY_Z10 HAVE_MEMCPY_IFUNC +# define HAVE_MEMCPY_Z196 HAVE_MEMCPY_IFUNC +#endif + +#if HAVE_MEMCPY_Z900_G5 +# define MEMCPY_Z900_G5 __memcpy_default +# define MEMPCPY_Z900_G5 __mempcpy_default +#else +# define MEMCPY_Z900_G5 NULL +# define MEMPCPY_Z900_G5 NULL +#endif + +#if HAVE_MEMCPY_Z10 +# define MEMCPY_Z10 __memcpy_z10 +# define MEMPCPY_Z10 __mempcpy_z10 +#else +# define MEMCPY_Z10 NULL +# define MEMPCPY_Z10 NULL +#endif + +#if HAVE_MEMCPY_Z196 +# define MEMCPY_Z196 __memcpy_z196 +# define MEMPCPY_Z196 __mempcpy_z196 +#else +# define MEMCPY_Z196 NULL +# define MEMPCPY_Z196 NULL +#endif Index: glibc-2.22/sysdeps/s390/memcpy-z900.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/memcpy-z900.S @@ -0,0 +1,224 @@ +/* memcpy - copy a block from source to destination. 31/64 bit S/390 version. + Copyright (C) 2012-2018 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 + <http://www.gnu.org/licenses/>. */ + + +#include <sysdep.h> +#include "asm-syntax.h" +#include <ifunc-memcpy.h> + +/* INPUT PARAMETERS + %r2 = address of destination memory area + %r3 = address of source memory area + %r4 = number of bytes to copy. */ + + .text + +#if defined __s390x__ +# define LTGR ltgr +# define CGHI cghi +# define LGR lgr +# define AGHI aghi +# define BRCTG brctg +#else +# define LTGR ltr +# define CGHI chi +# define LGR lr +# define AGHI ahi +# define BRCTG brct +#endif /* ! defined __s390x__ */ + +#if HAVE_MEMCPY_Z900_G5 +ENTRY(MEMPCPY_Z900_G5) +# if defined __s390x__ + .machine "z900" +# else + .machine "g5" +# endif /* ! defined __s390x__ */ + LGR %r1,%r2 # Use as dest + la %r2,0(%r4,%r2) # Return dest + n + j .L_Z900_G5_start +END(MEMPCPY_Z900_G5) + +ENTRY(MEMCPY_Z900_G5) +# if defined __s390x__ + .machine "z900" +# else + .machine "g5" +# endif /* ! defined __s390x__ */ + LGR %r1,%r2 # r1: Use as dest ; r2: Return dest +.L_Z900_G5_start: + LTGR %r4,%r4 + je .L_Z900_G5_4 + AGHI %r4,-1 +# if defined __s390x__ + srlg %r5,%r4,8 +# else + lr %r5,%r4 + srl %r5,8 +# endif /* ! defined __s390x__ */ + LTGR %r5,%r5 + jne .L_Z900_G5_13 +.L_Z900_G5_3: +# if defined __s390x__ + larl %r5,.L_Z900_G5_15 +# define Z900_G5_EX_D 0 +# else + basr %r5,0 +.L_Z900_G5_14: +# define Z900_G5_EX_D .L_Z900_G5_15-.L_Z900_G5_14 +# endif /* ! defined __s390x__ */ + ex %r4,Z900_G5_EX_D(%r5) +.L_Z900_G5_4: + br %r14 +.L_Z900_G5_13: + CGHI %r5,4096 # Switch to mvcle for copies >1MB + jh __memcpy_mvcle +.L_Z900_G5_12: + mvc 0(256,%r1),0(%r3) + la %r1,256(%r1) + la %r3,256(%r3) + BRCTG %r5,.L_Z900_G5_12 + j .L_Z900_G5_3 +.L_Z900_G5_15: + mvc 0(1,%r1),0(%r3) +END(MEMCPY_Z900_G5) +#endif /* HAVE_MEMCPY_Z900_G5 */ + +ENTRY(__memcpy_mvcle) + # Using as standalone function will result in unexpected + # results since the length field is incremented by 1 in order to + # compensate the changes already done in the functions above. + LGR %r0,%r2 # backup return dest [ + n ] + AGHI %r4,1 # length + 1 + LGR %r5,%r4 # source length + LGR %r4,%r3 # source address + LGR %r2,%r1 # destination address + LGR %r3,%r5 # destination length = source length +.L_MVCLE_1: + mvcle %r2,%r4,0 # thats it, MVCLE is your friend + jo .L_MVCLE_1 + LGR %r2,%r0 # return destination address + br %r14 +END(__memcpy_mvcle) + +#undef LTGR +#undef CGHI +#undef LGR +#undef AGHI +#undef BRCTG + +#if HAVE_MEMCPY_Z10 +ENTRY(MEMPCPY_Z10) + .machine "z10" + .machinemode "zarch_nohighgprs" + lgr %r1,%r2 # Use as dest + la %r2,0(%r4,%r2) # Return dest + n + j .L_Z10_start +END(MEMPCPY_Z10) + +ENTRY(MEMCPY_Z10) + .machine "z10" + .machinemode "zarch_nohighgprs" + lgr %r1,%r2 # r1: Use as dest ; r2: Return dest +.L_Z10_start: +# if !defined __s390x__ + llgfr %r4,%r4 +# endif /* !defined __s390x__ */ + cgije %r4,0,.L_Z10_4 + aghi %r4,-1 + srlg %r5,%r4,8 + cgijlh %r5,0,.L_Z10_13 +.L_Z10_3: + exrl %r4,.L_Z10_15 +.L_Z10_4: + br %r14 +.L_Z10_13: + cgfi %r5,65535 # Switch to mvcle for copies >16MB + jh __memcpy_mvcle +.L_Z10_12: + pfd 1,768(%r3) + pfd 2,768(%r1) + mvc 0(256,%r1),0(%r3) + la %r1,256(%r1) + la %r3,256(%r3) + brctg %r5,.L_Z10_12 + j .L_Z10_3 +.L_Z10_15: + mvc 0(1,%r1),0(%r3) +END(MEMCPY_Z10) +#endif /* HAVE_MEMCPY_Z10 */ + +#if HAVE_MEMCPY_Z196 +ENTRY(MEMPCPY_Z196) + .machine "z196" + .machinemode "zarch_nohighgprs" + lgr %r1,%r2 # Use as dest + la %r2,0(%r4,%r2) # Return dest + n + j .L_Z196_start +END(MEMPCPY_Z196) + +ENTRY(MEMCPY_Z196) + .machine "z196" + .machinemode "zarch_nohighgprs" + lgr %r1,%r2 # r1: Use as dest ; r2: Return dest +.L_Z196_start: +# if !defined __s390x__ + llgfr %r4,%r4 +# endif /* !defined __s390x__ */ + ltgr %r4,%r4 + je .L_Z196_4 + aghi %r4,-1 + srlg %r5,%r4,8 + ltgr %r5,%r5 + jne .L_Z196_5 +.L_Z196_3: + exrl %r4,.L_Z196_14 +.L_Z196_4: + br %r14 +.L_Z196_5: + cgfi %r5,262144 # Switch to mvcle for copies >64MB + jh __memcpy_mvcle +.L_Z196_2: + pfd 1,768(%r3) + pfd 2,768(%r1) + mvc 0(256,%r1),0(%r3) + aghi %r5,-1 + la %r1,256(%r1) + la %r3,256(%r3) + jne .L_Z196_2 + j .L_Z196_3 +.L_Z196_14: + mvc 0(1,%r1),0(%r3) +END(MEMCPY_Z196) +#endif /* HAVE_MEMCPY_Z196 */ + +#if ! HAVE_MEMCPY_IFUNC +/* If we don't use ifunc, define an alias for mem[p]cpy here. + Otherwise see sysdeps/s390/mem[p]cpy.c. */ +strong_alias (MEMCPY_DEFAULT, memcpy) +strong_alias (MEMPCPY_DEFAULT, __mempcpy) +weak_alias (__mempcpy, mempcpy) +#endif + +#if defined SHARED && IS_IN (libc) +/* Defines the internal symbols. + Compare to libc_hidden_[builtin_]def (mem[p]cpy) in string/mem[p]cpy.c. */ +strong_alias (MEMCPY_DEFAULT, __GI_memcpy) +strong_alias (MEMPCPY_DEFAULT, __GI_mempcpy) +strong_alias (MEMPCPY_DEFAULT, __GI___mempcpy) +#endif Index: glibc-2.22/sysdeps/s390/memcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/memcpy.S +++ /dev/null @@ -1,128 +0,0 @@ -/* memcpy - copy a block from source to destination. 31/64 bit S/390 version. - Copyright (C) 2012-2018 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 - <http://www.gnu.org/licenses/>. */ - - -#include <sysdep.h> -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = address of destination memory area - %r3 = address of source memory area - %r4 = number of bytes to copy. */ - - .text - -#if defined __s390x__ -# define LTGR ltgr -# define CGHI cghi -# define LGR lgr -# define AGHI aghi -# define BRCTG brctg -#else -# define LTGR ltr -# define CGHI chi -# define LGR lr -# define AGHI ahi -# define BRCTG brct -#endif /* ! defined __s390x__ */ - -ENTRY(__mempcpy) -#if defined __s390x__ - .machine "z900" -#else - .machine "g5" -#endif /* ! defined __s390x__ */ - LGR %r1,%r2 # Use as dest - la %r2,0(%r4,%r2) # Return dest + n - j .L_Z900_G5_start -END(__mempcpy) -#ifndef USE_MULTIARCH -libc_hidden_def (__mempcpy) -weak_alias (__mempcpy, mempcpy) -libc_hidden_builtin_def (mempcpy) -#endif - -ENTRY(memcpy) -#if defined __s390x__ - .machine "z900" -#else - .machine "g5" -#endif /* ! defined __s390x__ */ - LGR %r1,%r2 # r1: Use as dest ; r2: Return dest -.L_Z900_G5_start: - LTGR %r4,%r4 - je .L_Z900_G5_4 - AGHI %r4,-1 -#if defined __s390x__ - srlg %r5,%r4,8 -#else - lr %r5,%r4 - srl %r5,8 -#endif /* ! defined __s390x__ */ - LTGR %r5,%r5 - jne .L_Z900_G5_13 -.L_Z900_G5_3: -#if defined __s390x__ - larl %r5,.L_Z900_G5_15 -# define Z900_G5_EX_D 0 -#else - basr %r5,0 -.L_Z900_G5_14: -# define Z900_G5_EX_D .L_Z900_G5_15-.L_Z900_G5_14 -#endif /* ! defined __s390x__ */ - ex %r4,Z900_G5_EX_D(%r5) -.L_Z900_G5_4: - br %r14 -.L_Z900_G5_13: - CGHI %r5,4096 # Switch to mvcle for copies >1MB - jh __memcpy_mvcle -.L_Z900_G5_12: - mvc 0(256,%r1),0(%r3) - la %r1,256(%r1) - la %r3,256(%r3) - BRCTG %r5,.L_Z900_G5_12 - j .L_Z900_G5_3 -.L_Z900_G5_15: - mvc 0(1,%r1),0(%r3) -END(memcpy) -#ifndef USE_MULTIARCH -libc_hidden_builtin_def (memcpy) -#endif - -ENTRY(__memcpy_mvcle) - # Using as standalone function will result in unexpected - # results since the length field is incremented by 1 in order to - # compensate the changes already done in the functions above. - LGR %r0,%r2 # backup return dest [ + n ] - AGHI %r4,1 # length + 1 - LGR %r5,%r4 # source length - LGR %r4,%r3 # source address - LGR %r2,%r1 # destination address - LGR %r3,%r5 # destination length = source length -.L_MVCLE_1: - mvcle %r2,%r4,0 # thats it, MVCLE is your friend - jo .L_MVCLE_1 - LGR %r2,%r0 # return destination address - br %r14 -END(__memcpy_mvcle) - -#undef LTGR -#undef CGHI -#undef LGR -#undef AGHI -#undef BRCTG Index: glibc-2.22/sysdeps/s390/memcpy.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/memcpy.c @@ -0,0 +1,49 @@ +/* Multiple versions of memcpy. + Copyright (C) 2015 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 <ifunc-memcpy.h> + +#if HAVE_MEMCPY_IFUNC +# define memcpy __redirect_memcpy +# include <string.h> +# undef memcpy +# include <ifunc-resolve.h> + +# if HAVE_MEMCPY_Z900_G5 +extern __typeof (__redirect_memcpy) MEMCPY_Z900_G5 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z10 +extern __typeof (__redirect_memcpy) MEMCPY_Z10 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z196 +extern __typeof (__redirect_memcpy) MEMCPY_Z196 attribute_hidden; +# endif + +s390_libc_ifunc_expr (__redirect_memcpy, memcpy, + ({ + s390_libc_ifunc_init (); + (HAVE_MEMCPY_Z196 && S390_IS_Z196 (stfle_bits)) + ? MEMCPY_Z196 + : (HAVE_MEMCPY_Z10 && S390_IS_Z10 (stfle_bits)) + ? MEMCPY_Z10 + : MEMCPY_DEFAULT; + }) + ) +#endif Index: glibc-2.22/sysdeps/s390/mempcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/mempcpy.S +++ /dev/null @@ -1,19 +0,0 @@ -/* CPU specific mempcpy without multiarch - 32/64 bit S/390 version. - Copyright (C) 2016 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/>. */ - -/* mempcpy is implemented in memcpy.S. */ Index: glibc-2.22/sysdeps/s390/mempcpy.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/mempcpy.c @@ -0,0 +1,54 @@ +/* Multiple versions of mempcpy. + Copyright (C) 2016 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 <ifunc-memcpy.h> + +#if HAVE_MEMCPY_IFUNC +# define mempcpy __redirect_mempcpy +# define __mempcpy __redirect___mempcpy +/* Omit the mempcpy inline definitions because it would redefine mempcpy. */ +# define _HAVE_STRING_ARCH_mempcpy 1 +# include <string.h> +# undef mempcpy +# undef __mempcpy +# include <ifunc-resolve.h> + +# if HAVE_MEMCPY_Z900_G5 +extern __typeof (__redirect___mempcpy) MEMPCPY_Z900_G5 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z10 +extern __typeof (__redirect___mempcpy) MEMPCPY_Z10 attribute_hidden; +# endif + +# if HAVE_MEMCPY_Z196 +extern __typeof (__redirect___mempcpy) MEMPCPY_Z196 attribute_hidden; +# endif + +s390_libc_ifunc_expr (__redirect___mempcpy, __mempcpy, + ({ + s390_libc_ifunc_init (); + (HAVE_MEMCPY_Z196 && S390_IS_Z196 (stfle_bits)) + ? MEMPCPY_Z196 + : (HAVE_MEMCPY_Z10 && S390_IS_Z10 (stfle_bits)) + ? MEMPCPY_Z10 + : MEMPCPY_DEFAULT; + }) + ) +weak_alias (__mempcpy, mempcpy); +#endif Index: glibc-2.22/sysdeps/s390/multiarch/Makefile =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/Makefile +++ glibc-2.22/sysdeps/s390/multiarch/Makefile @@ -18,8 +18,7 @@ sysdep_routines += strlen strlen-vx strl memchr memchr-vx \ rawmemchr rawmemchr-vx rawmemchr-c \ memccpy memccpy-vx memccpy-c \ - memrchr memrchr-vx memrchr-c \ - mempcpy memcpy memcpy-s390x + memrchr memrchr-vx memrchr-c endif ifeq ($(subdir),wcsmbs) Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/ifunc-impl-list.c +++ glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c @@ -21,6 +21,7 @@ #include <wchar.h> #include <ifunc-impl-list.h> #include <ifunc-resolve.h> +#include <ifunc-memcpy.h> /* Maximum number of IFUNC implementations. */ #define MAX_IFUNC 3 @@ -60,23 +61,35 @@ __libc_ifunc_impl_list (const char *name S390_IS_Z10 (stfle_bits), __memcmp_z10) IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_default)) -#ifdef SHARED - +#if HAVE_MEMCPY_IFUNC IFUNC_IMPL (i, name, memcpy, +# if HAVE_MEMCPY_Z196 IFUNC_IMPL_ADD (array, i, memcpy, - S390_IS_Z196 (stfle_bits), __memcpy_z196) + S390_IS_Z196 (stfle_bits), MEMCPY_Z196) +# endif +# if HAVE_MEMCPY_Z10 IFUNC_IMPL_ADD (array, i, memcpy, - S390_IS_Z10 (stfle_bits), __memcpy_z10) - IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_default)) + S390_IS_Z10 (stfle_bits), MEMCPY_Z10) +# endif +# if HAVE_MEMCPY_Z900_G5 + IFUNC_IMPL_ADD (array, i, memcpy, 1, MEMCPY_Z900_G5) +# endif + ) IFUNC_IMPL (i, name, mempcpy, +# if HAVE_MEMCPY_Z196 IFUNC_IMPL_ADD (array, i, mempcpy, - S390_IS_Z196 (stfle_bits), ____mempcpy_z196) + S390_IS_Z196 (stfle_bits), MEMPCPY_Z196) +# endif +# if HAVE_MEMCPY_Z10 IFUNC_IMPL_ADD (array, i, mempcpy, - S390_IS_Z10 (stfle_bits), ____mempcpy_z10) - IFUNC_IMPL_ADD (array, i, mempcpy, 1, ____mempcpy_default)) - -#endif /* SHARED */ + S390_IS_Z10 (stfle_bits), MEMPCPY_Z10) +# endif +# if HAVE_MEMCPY_Z900_G5 + IFUNC_IMPL_ADD (array, i, mempcpy, 1, MEMPCPY_Z900_G5) +# endif + ) +#endif /* HAVE_MEMCPY_IFUNC */ #ifdef HAVE_S390_VX_ASM_SUPPORT Index: glibc-2.22/sysdeps/s390/multiarch/memcpy-s390x.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/memcpy-s390x.S +++ /dev/null @@ -1,132 +0,0 @@ -/* CPU specific memcpy implementations. 31/64 bit S/390 version. - Copyright (C) 2012-2018 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 - <http://www.gnu.org/licenses/>. */ - - -#include "sysdep.h" -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = target operands address - %r3 = source operands address - %r4 = number of bytes to copy. */ - - .text - -#if defined SHARED && IS_IN (libc) - -ENTRY(____mempcpy_z196) - .machine "z196" - .machinemode "zarch_nohighgprs" - lgr %r1,%r2 # Use as dest - la %r2,0(%r4,%r2) # Return dest + n - j .L_Z196_start -END(____mempcpy_z196) - -ENTRY(__memcpy_z196) - .machine "z196" - .machinemode "zarch_nohighgprs" - lgr %r1,%r2 # r1: Use as dest ; r2: Return dest -.L_Z196_start: -# if !defined __s390x__ - llgfr %r4,%r4 -# endif /* !defined __s390x__ */ - ltgr %r4,%r4 - je .L_Z196_4 - aghi %r4,-1 - srlg %r5,%r4,8 - ltgr %r5,%r5 - jne .L_Z196_5 -.L_Z196_3: - exrl %r4,.L_Z196_14 -.L_Z196_4: - br %r14 -.L_Z196_5: - cgfi %r5,262144 # Switch to mvcle for copies >64MB - jh __memcpy_mvcle -.L_Z196_2: - pfd 1,768(%r3) - pfd 2,768(%r1) - mvc 0(256,%r1),0(%r3) - aghi %r5,-1 - la %r1,256(%r1) - la %r3,256(%r3) - jne .L_Z196_2 - j .L_Z196_3 -.L_Z196_14: - mvc 0(1,%r1),0(%r3) -END(__memcpy_z196) - -ENTRY(____mempcpy_z10) - .machine "z10" - .machinemode "zarch_nohighgprs" - lgr %r1,%r2 # Use as dest - la %r2,0(%r4,%r2) # Return dest + n - j .L_Z10_start -END(____mempcpy_z10) - -ENTRY(__memcpy_z10) - .machine "z10" - .machinemode "zarch_nohighgprs" - lgr %r1,%r2 # r1: Use as dest ; r2: Return dest -.L_Z10_start: -# if !defined __s390x__ - llgfr %r4,%r4 -# endif /* !defined __s390x__ */ - cgije %r4,0,.L_Z10_4 - aghi %r4,-1 - srlg %r5,%r4,8 - cgijlh %r5,0,.L_Z10_13 -.L_Z10_3: - exrl %r4,.L_Z10_15 -.L_Z10_4: - br %r14 -.L_Z10_13: - cgfi %r5,65535 # Switch to mvcle for copies >16MB - jh __memcpy_mvcle -.L_Z10_12: - pfd 1,768(%r3) - pfd 2,768(%r1) - mvc 0(256,%r1),0(%r3) - la %r1,256(%r1) - la %r3,256(%r3) - brctg %r5,.L_Z10_12 - j .L_Z10_3 -.L_Z10_15: - mvc 0(1,%r1),0(%r3) -END(__memcpy_z10) - -# define __mempcpy ____mempcpy_default -#endif /* SHARED && IS_IN (libc) */ - -#define memcpy __memcpy_default -#include "../memcpy.S" -#undef memcpy - -#if defined SHARED && IS_IN (libc) -.globl __GI_memcpy -.set __GI_memcpy,__memcpy_default -.globl __GI_mempcpy -.set __GI_mempcpy,____mempcpy_default -.globl __GI___mempcpy -.set __GI___mempcpy,____mempcpy_default -#else -.globl memcpy -.set memcpy,__memcpy_default -.weak mempcpy -.set mempcpy,__mempcpy -#endif Index: glibc-2.22/sysdeps/s390/multiarch/memcpy.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/memcpy.c +++ /dev/null @@ -1,27 +0,0 @@ -/* Multiple versions of memcpy. - Copyright (C) 2015 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/>. */ - -/* In the static lib memcpy is needed before the reloc is resolved. */ -#if defined SHARED && IS_IN (libc) -# define memcpy __redirect_memcpy -# include <string.h> -# undef memcpy -# include <ifunc-resolve.h> - -s390_libc_ifunc (__redirect_memcpy, __memcpy, memcpy) -#endif Index: glibc-2.22/sysdeps/s390/multiarch/mempcpy.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/multiarch/mempcpy.c +++ /dev/null @@ -1,32 +0,0 @@ -/* Multiple versions of mempcpy. - Copyright (C) 2016 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/>. */ - - -#if defined SHARED && IS_IN (libc) -# define mempcpy __redirect_mempcpy -# define __mempcpy __redirect___mempcpy -/* Omit the mempcpy inline definitions because it would redefine mempcpy. */ -# define _HAVE_STRING_ARCH_mempcpy 1 -# include <string.h> -# undef mempcpy -# undef __mempcpy -# include <ifunc-resolve.h> - -s390_libc_ifunc (__redirect___mempcpy, ____mempcpy, __mempcpy) -weak_alias (__mempcpy, mempcpy); -#endif
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