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SUSE:SLE-12-SP3:GA
glibc.23256
0005-S390-Refactor-ifunc-implementations-and-en...
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File 0005-S390-Refactor-ifunc-implementations-and-enable-ifunc.patch of Package glibc.23256
2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com> * sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines): Remove ifunc-resolve, add memset-s390, memcpy-s390, memcmp-s390. * sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Delete File. * sysdeps/s390/s390-32/multiarch/memcmp.S: Move to ... * sysdeps/s390/s390-32/multiarch/memcmp-s390.S: ... here. (memcmp, bcmp): Use __memcmp_default as alias source. * sysdeps/s390/s390-32/multiarch/memcmp.c: New File. * sysdeps/s390/s390-32/memcmp.S (__memcmp_g5): Rename to __memcmp_default. * sysdeps/s390/s390-32/multiarch/memcpy.S: Move to ... * sysdeps/s390/s390-32/multiarch/memcpy-s390.S: ... here. (memcpy): Use __memcpy_default as alias source. * sysdeps/s390/s390-32/multiarch/memcpy.c: New File. * sysdeps/s390/s390-32/memcpy.S (__memcpy_g5): Rename to __memcpy_default. * sysdeps/s390/s390-32/multiarch/memset.S: Move to ... * sysdeps/s390/s390-32/multiarch/memset-s390.S: ... here. (memset): Use __memset_default as alias source. * sysdeps/s390/s390-32/multiarch/memset.c: New File. * sysdeps/s390/s390-32/memset.S (__memset_g5): Rename to __memset_default. * sysdeps/s390/s390-64/multiarch/Makefile (sysdep_routines): Remove ifunc-resolve, add memset-s390x, memcpy-s390x, memcmp-s390x. * sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Delete File. * sysdeps/s390/s390-64/multiarch/memcmp.S: Move to ... * sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: ... here. (memcmp, bcmp): Use __memcmp_default as alias source. * sysdeps/s390/s390-64/multiarch/memcmp.c: New File. * sysdeps/s390/s390-64/memcmp.S (__memcmp_z900): Rename to __memcmp_default. * sysdeps/s390/s390-64/multiarch/memcpy.S: Move to ... * sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: ... here. (memcpy): Use __memcpy_default as alias source. * sysdeps/s390/s390-64/multiarch/memcpy.c: New File. * sysdeps/s390/s390-64/memcpy.S (__memcpy_z900): Rename to __memcpy_default. * sysdeps/s390/s390-64/multiarch/memset.S: Move to ... * sysdeps/s390/s390-64/multiarch/memset-s390x.S: ... here. (memset): Use __memset_default as alias source. * sysdeps/s390/s390-64/multiarch/memset.c: New File. * sysdeps/s390/s390-64/memset.S (__memset_z900): Rename to __memset_default. * sysdeps/s390/multiarch/ifunc-resolve.h: New File. * sysdeps/s390/multiarch/ifunc-impl-list.c: New File. Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/ifunc-impl-list.c @@ -0,0 +1,74 @@ +/* Enumerate available IFUNC implementations of a function. s390/s390x version. + 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 <assert.h> +#include <string.h> +#include <ifunc-impl-list.h> +#include <ifunc-resolve.h> + +/* Maximum number of IFUNC implementations. */ +#define MAX_IFUNC 3 + +/* 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; + + /* Get hardware information. */ + unsigned long int dl_hwcap = GLRO (dl_hwcap); + unsigned long long stfle_bits = 0ULL; + if ((dl_hwcap & HWCAP_S390_STFLE) + && (dl_hwcap & HWCAP_S390_ZARCH) + && (dl_hwcap & HWCAP_S390_HIGH_GPRS)) + { + S390_STORE_STFLE (stfle_bits); + } + + IFUNC_IMPL (i, name, memset, + IFUNC_IMPL_ADD (array, i, memset, + S390_IS_Z196 (stfle_bits), __memset_z196) + IFUNC_IMPL_ADD (array, i, memset, + S390_IS_Z10 (stfle_bits), __memset_z10) + IFUNC_IMPL_ADD (array, i, memset, 1, __memset_default)) + + IFUNC_IMPL (i, name, memcmp, + IFUNC_IMPL_ADD (array, i, memcmp, + S390_IS_Z196 (stfle_bits), __memcmp_z196) + IFUNC_IMPL_ADD (array, i, memcmp, + S390_IS_Z10 (stfle_bits), __memcmp_z10) + IFUNC_IMPL_ADD (array, i, memcmp, 1, __memcmp_default)) + +#ifdef SHARED + + IFUNC_IMPL (i, name, memcpy, + IFUNC_IMPL_ADD (array, i, memcpy, + S390_IS_Z196 (stfle_bits), __memcpy_z196) + IFUNC_IMPL_ADD (array, i, memcpy, + S390_IS_Z10 (stfle_bits), __memcpy_z10) + IFUNC_IMPL_ADD (array, i, memcpy, 1, __memcpy_default)) + +#endif /* SHARED */ + + return i; +} Index: glibc-2.22/sysdeps/s390/multiarch/ifunc-resolve.h =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/multiarch/ifunc-resolve.h @@ -0,0 +1,75 @@ +/* IFUNC resolver function for CPU specific functions. + 32/64 bit S/390 version. + 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 <unistd.h> +#include <dl-procinfo.h> + +#define S390_STFLE_BITS_Z10 34 /* General instructions extension */ +#define S390_STFLE_BITS_Z196 45 /* Distinct operands, pop ... */ + +#define S390_IS_Z196(STFLE_BITS) \ + ((STFLE_BITS & (1ULL << (63 - S390_STFLE_BITS_Z196))) != 0) + +#define S390_IS_Z10(STFLE_BITS) \ + ((STFLE_BITS & (1ULL << (63 - S390_STFLE_BITS_Z10))) != 0) + +#define S390_STORE_STFLE(STFLE_BITS) \ + /* We want just 1 double word to be returned. */ \ + register unsigned long reg0 asm("0") = 0; \ + \ + asm volatile(".machine push" "\n\t" \ + ".machine \"z9-109\"" "\n\t" \ + ".machinemode \"zarch_nohighgprs\"\n\t" \ + "stfle %0" "\n\t" \ + ".machine pop" "\n" \ + : "=QS" (STFLE_BITS), "+d" (reg0) \ + : : "cc"); + +#define s390_libc_ifunc(FUNC) \ + asm (".globl " #FUNC "\n\t" \ + ".type " #FUNC ",@gnu_indirect_function\n\t" \ + ".set " #FUNC ",__resolve_" #FUNC "\n\t" \ + ".globl __GI_" #FUNC "\n\t" \ + ".set __GI_" #FUNC "," #FUNC "\n"); \ + \ + /* Make the declarations of the optimized functions hidden in order + to prevent GOT slots being generated for them. */ \ + extern void *__##FUNC##_z196 attribute_hidden; \ + extern void *__##FUNC##_z10 attribute_hidden; \ + extern void *__##FUNC##_default attribute_hidden; \ + \ + void *__resolve_##FUNC (unsigned long int dl_hwcap) \ + { \ + if ((dl_hwcap & HWCAP_S390_STFLE) \ + && (dl_hwcap & HWCAP_S390_ZARCH) \ + && (dl_hwcap & HWCAP_S390_HIGH_GPRS)) \ + { \ + unsigned long long stfle_bits; \ + S390_STORE_STFLE (stfle_bits); \ + \ + if (S390_IS_Z196 (stfle_bits)) \ + return &__##FUNC##_z196; \ + else if (S390_IS_Z10 (stfle_bits)) \ + return &__##FUNC##_z10; \ + else \ + return &__##FUNC##_default; \ + } \ + else \ + return &__##FUNC##_default; \ + } Index: glibc-2.22/sysdeps/s390/s390-32/memcmp.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/memcmp.S +++ glibc-2.22/sysdeps/s390/s390-32/memcmp.S @@ -27,38 +27,38 @@ .text #ifdef USE_MULTIARCH -ENTRY(__memcmp_g5) +ENTRY(__memcmp_default) #else ENTRY(memcmp) #endif .machine "g5" - basr %r5,0 + basr %r5,0 .L_G5_16: - ltr %r4,%r4 - je .L_G5_4 - ahi %r4,-1 - lr %r1,%r4 - srl %r1,8 - ltr %r1,%r1 - jne .L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r5) + ltr %r4,%r4 + je .L_G5_4 + ahi %r4,-1 + lr %r1,%r4 + srl %r1,8 + ltr %r1,%r1 + jne .L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r5) .L_G5_4: - ipm %r2 - sll %r2,2 - sra %r2,30 - br %r14 + ipm %r2 + sll %r2,2 + sra %r2,30 + br %r14 .L_G5_12: - clc 0(256,%r3),0(%r2) - jne .L_G5_4 - la %r3,256(%r3) - la %r2,256(%r2) - brct %r1,.L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r5) - j .L_G5_4 + clc 0(256,%r3),0(%r2) + jne .L_G5_4 + la %r3,256(%r3) + la %r2,256(%r2) + brct %r1,.L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r5) + j .L_G5_4 .L_G5_17: - clc 0(1,%r3),0(%r2) + clc 0(1,%r3),0(%r2) #ifdef USE_MULTIARCH -END(__memcmp_g5) +END(__memcmp_default) #else END(memcmp) libc_hidden_builtin_def (memcmp) Index: glibc-2.22/sysdeps/s390/s390-32/memcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/memcpy.S +++ glibc-2.22/sysdeps/s390/s390-32/memcpy.S @@ -26,41 +26,41 @@ %r4 = number of bytes to copy. */ #ifdef USE_MULTIARCH -ENTRY(__memcpy_g5) +ENTRY(__memcpy_default) #else ENTRY(memcpy) #endif .machine "g5" - st %r13,52(%r15) - .cfi_offset 13, -44 - basr %r13,0 + st %r13,52(%r15) + .cfi_offset 13, -44 + basr %r13,0 .L_G5_16: - ltr %r4,%r4 - je .L_G5_4 - ahi %r4,-1 - lr %r5,%r4 - srl %r5,8 - ltr %r5,%r5 - lr %r1,%r2 - jne .L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r13) + ltr %r4,%r4 + je .L_G5_4 + ahi %r4,-1 + lr %r5,%r4 + srl %r5,8 + ltr %r5,%r5 + lr %r1,%r2 + jne .L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r13) .L_G5_4: - l %r13,52(%r15) - br %r14 + l %r13,52(%r15) + br %r14 .L_G5_13: - chi %r5,4096 # Switch to mvcle for copies >1MB - jh __memcpy_mvcle + chi %r5,4096 # Switch to mvcle for copies >1MB + jh __memcpy_mvcle .L_G5_12: - mvc 0(256,%r1),0(%r3) - la %r1,256(%r1) - la %r3,256(%r3) - brct %r5,.L_G5_12 - ex %r4,.L_G5_17-.L_G5_16(%r13) - j .L_G5_4 + mvc 0(256,%r1),0(%r3) + la %r1,256(%r1) + la %r3,256(%r3) + brct %r5,.L_G5_12 + ex %r4,.L_G5_17-.L_G5_16(%r13) + j .L_G5_4 .L_G5_17: - mvc 0(1,%r1),0(%r3) + mvc 0(1,%r1),0(%r3) #ifdef USE_MULTIARCH -END(__memcpy_g5) +END(__memcpy_default) #else END(memcpy) libc_hidden_builtin_def (memcpy) Index: glibc-2.22/sysdeps/s390/s390-32/memset.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/memset.S +++ glibc-2.22/sysdeps/s390/s390-32/memset.S @@ -28,37 +28,37 @@ .text #ifdef USE_MULTIARCH -ENTRY(__memset_g5) +ENTRY(__memset_default) #else ENTRY(memset) #endif .machine "g5" - basr %r5,0 + basr %r5,0 .L_G5_19: - ltr %r4,%r4 - je .L_G5_4 - stc %r3,0(%r2) - chi %r4,1 - lr %r1,%r2 - je .L_G5_4 - ahi %r4,-2 - lr %r3,%r4 - srl %r3,8 - ltr %r3,%r3 - jne .L_G5_14 - ex %r4,.L_G5_20-.L_G5_19(%r5) + ltr %r4,%r4 + je .L_G5_4 + stc %r3,0(%r2) + chi %r4,1 + lr %r1,%r2 + je .L_G5_4 + ahi %r4,-2 + lr %r3,%r4 + srl %r3,8 + ltr %r3,%r3 + jne .L_G5_14 + ex %r4,.L_G5_20-.L_G5_19(%r5) .L_G5_4: - br %r14 + br %r14 .L_G5_14: - mvc 1(256,%r1),0(%r1) - la %r1,256(%r1) - brct %r3,.L_G5_14 - ex %r4,.L_G5_20-.L_G5_19(%r5) - j .L_G5_4 + mvc 1(256,%r1),0(%r1) + la %r1,256(%r1) + brct %r3,.L_G5_14 + ex %r4,.L_G5_20-.L_G5_19(%r5) + j .L_G5_4 .L_G5_20: - mvc 1(1,%r1),0(%r1) + mvc 1(1,%r1),0(%r1) #ifdef USE_MULTIARCH -END(__memset_g5) +END(__memset_default) #else END(memset) libc_hidden_builtin_def (memset) Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/Makefile =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/Makefile +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/Makefile @@ -1,3 +1,4 @@ ifeq ($(subdir),string) -sysdep_routines += ifunc-resolve memset memcpy memcmp +sysdep_routines += memset memset-s390 memcpy memcpy-s390 \ + memcmp memcmp-s390 endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c +++ /dev/null @@ -1,72 +0,0 @@ -/* IFUNC resolver function for CPU specific functions. - 32 bit S/390 version. - Copyright (C) 2012-2015 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 <unistd.h> -#include <dl-procinfo.h> - -#define STFLE_BITS_Z10 34 /* General instructions extension */ -#define STFLE_BITS_Z196 45 /* Distinct operands, pop ... */ - -#if IS_IN (libc) - -#define IFUNC_RESOLVE(FUNC) \ - asm (".globl " #FUNC "\n\t" \ - ".type " #FUNC ",@gnu_indirect_function\n\t" \ - ".set " #FUNC ",__resolve_" #FUNC "\n\t" \ - ".globl __GI_" #FUNC "\n\t" \ - ".set __GI_" #FUNC "," #FUNC "\n"); \ - \ - /* Make the declarations of the optimized functions hidden in order - to prevent GOT slots being generated for them. */ \ - extern void *__##FUNC##_z196 attribute_hidden; \ - extern void *__##FUNC##_z10 attribute_hidden; \ - extern void *__##FUNC##_g5 attribute_hidden; \ - \ - void *__resolve_##FUNC (unsigned long int dl_hwcap) \ - { \ - if ((dl_hwcap & HWCAP_S390_STFLE) \ - && (dl_hwcap & HWCAP_S390_ZARCH) \ - && (dl_hwcap & HWCAP_S390_HIGH_GPRS)) \ - { \ - /* We want just 1 double word to be returned. */ \ - register unsigned long reg0 asm("0") = 0; \ - unsigned long long stfle_bits; \ - \ - asm volatile(".insn s,0xb2b00000,%0" "\n\t" /* stfle */ \ - : "=QS" (stfle_bits), "+d" (reg0) \ - : : "cc"); \ - \ - if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z196))) != 0) \ - return &__##FUNC##_z196; \ - else if ((stfle_bits & (1ULL << (63 - STFLE_BITS_Z10))) != 0) \ - return &__##FUNC##_z10; \ - } \ - return &__##FUNC##_g5; \ - } - -IFUNC_RESOLVE(memset) -IFUNC_RESOLVE(memcmp) -asm(".weak bcmp ; bcmp = memcmp"); - -/* In the static lib memcpy is needed before the reloc is resolved. */ -#ifdef SHARED -IFUNC_RESOLVE(memcpy) -#endif - -#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp-s390.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp-s390.S @@ -0,0 +1,104 @@ +/* CPU specific memcmp implementations. 32 bit S/390 version. + Copyright (C) 2012-2015 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 "sysdep.h" +#include "asm-syntax.h" + +/* INPUT PARAMETERS + %r2 = address of first memory area + %r3 = address of second memory area + %r4 = number of bytes to compare. */ + + .text + +#if IS_IN (libc) + +ENTRY(__memcmp_z196) + .machine "z196" + .machinemode "zarch_nohighgprs" + ltr %r4,%r4 + je .L_Z196_4 + ahi %r4,-1 + srlk %r1,%r4,8 + ltr %r1,%r1 + jne .L_Z196_2 +.L_Z196_3: + exrl %r4,.L_Z196_14 +.L_Z196_4: + ipm %r2 + sll %r2,2 + sra %r2,30 + br %r14 +.L_Z196_17: + la %r3,256(%r3) + la %r2,256(%r2) + ahi %r1,-1 + je .L_Z196_3 +.L_Z196_2: + pfd 1,512(%r3) + pfd 1,512(%r2) + clc 0(256,%r3),0(%r2) + je .L_Z196_17 + ipm %r2 + sll %r2,2 + sra %r2,30 + br %r14 +.L_Z196_14: + clc 0(1,%r3),0(%r2) +END(__memcmp_z196) + +ENTRY(__memcmp_z10) + .machine "z10" + .machinemode "zarch_nohighgprs" + ltr %r4,%r4 + je .L_Z10_4 + ahi %r4,-1 + lr %r1,%r4 + srl %r1,8 + cijlh %r1,0,.L_Z10_12 +.L_Z10_3: + exrl %r4,.L_Z10_15 +.L_Z10_4: + ipm %r2 + sll %r2,2 + sra %r2,30 + br %r14 +.L_Z10_12: + pfd 1,512(%r3) + pfd 1,512(%r2) + clc 0(256,%r3),0(%r2) + jne .L_Z10_4 + la %r3,256(%r3) + la %r2,256(%r2) + brct %r1,.L_Z10_12 + j .L_Z10_3 +.L_Z10_15: + clc 0(1,%r3),0(%r2) +END(__memcmp_z10) + +#endif /* IS_IN (libc) */ + +#include "../memcmp.S" + +#if !IS_IN (libc) +.globl memcmp +.set memcmp,__memcmp_default +.weak bcmp +.set bcmp,__memcmp_default +#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memcmp.S +++ /dev/null @@ -1,104 +0,0 @@ -/* CPU specific memcmp implementations. 32 bit S/390 version. - Copyright (C) 2012-2015 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 "sysdep.h" -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = address of first memory area - %r3 = address of second memory area - %r4 = number of bytes to compare. */ - - .text - -#if IS_IN (libc) - -ENTRY(__memcmp_z196) - .machine "z196" - .machinemode "zarch_nohighgprs" - ltr %r4,%r4 - je .L_Z196_4 - ahi %r4,-1 - srlk %r1,%r4,8 - ltr %r1,%r1 - jne .L_Z196_2 -.L_Z196_3: - exrl %r4,.L_Z196_14 -.L_Z196_4: - ipm %r2 - sll %r2,2 - sra %r2,30 - br %r14 -.L_Z196_17: - la %r3,256(%r3) - la %r2,256(%r2) - ahi %r1,-1 - je .L_Z196_3 -.L_Z196_2: - pfd 1,512(%r3) - pfd 1,512(%r2) - clc 0(256,%r3),0(%r2) - je .L_Z196_17 - ipm %r2 - sll %r2,2 - sra %r2,30 - br %r14 -.L_Z196_14: - clc 0(1,%r3),0(%r2) -END(__memcmp_z196) - -ENTRY(__memcmp_z10) - .machine "z10" - .machinemode "zarch_nohighgprs" - ltr %r4,%r4 - je .L_Z10_4 - ahi %r4,-1 - lr %r1,%r4 - srl %r1,8 - cijlh %r1,0,.L_Z10_12 -.L_Z10_3: - exrl %r4,.L_Z10_15 -.L_Z10_4: - ipm %r2 - sll %r2,2 - sra %r2,30 - br %r14 -.L_Z10_12: - pfd 1,512(%r3) - pfd 1,512(%r2) - clc 0(256,%r3),0(%r2) - jne .L_Z10_4 - la %r3,256(%r3) - la %r2,256(%r2) - brct %r1,.L_Z10_12 - j .L_Z10_3 -.L_Z10_15: - clc 0(1,%r3),0(%r2) -END(__memcmp_z10) - -#endif - -#include "../memcmp.S" - -#if !IS_IN (libc) -.globl memcmp -.set memcmp,__memcmp_g5 -.weak bcmp -.set bcmp,__memcmp_g5 -#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcmp.c @@ -0,0 +1,24 @@ +/* Multiple versions of memcmp. + 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/>. */ + +#if IS_IN (libc) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memcmp) +asm(".weak bcmp ; bcmp = memcmp"); +#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy-s390.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy-s390.S @@ -0,0 +1,98 @@ +/* CPU specific memcpy implementations. 32 bit S/390 version. + Copyright (C) 2012-2015 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 "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(__memcpy_z196) + .machine "z196" + .machinemode "zarch_nohighgprs" + llgfr %r4,%r4 + ltgr %r4,%r4 + je .L_Z196_4 + aghi %r4,-1 + lr %r1,%r2 + 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(__memcpy_z10) + .machine "z10" + .machinemode "zarch_nohighgprs" + llgfr %r4,%r4 + cgije %r4,0,.L_Z10_4 + aghi %r4,-1 + lr %r1,%r2 + 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 /* SHARED && IS_IN (libc) */ + +#include "../memcpy.S" + +#if !defined SHARED || !IS_IN (libc) +.globl memcpy +.set memcpy,__memcpy_default +#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memcpy.S +++ /dev/null @@ -1,98 +0,0 @@ -/* CPU specific memcpy implementations. 32 bit S/390 version. - Copyright (C) 2012-2015 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 "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(__memcpy_z196) - .machine "z196" - .machinemode "zarch_nohighgprs" - llgfr %r4,%r4 - ltgr %r4,%r4 - je .L_Z196_4 - aghi %r4,-1 - lr %r1,%r2 - 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(__memcpy_z10) - .machine "z10" - .machinemode "zarch_nohighgprs" - llgfr %r4,%r4 - cgije %r4,0,.L_Z10_4 - aghi %r4,-1 - lr %r1,%r2 - 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 - -#include "../memcpy.S" - -#if !defined SHARED || !IS_IN (libc) -.globl memcpy -.set memcpy,__memcpy_g5 -#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memcpy.c @@ -0,0 +1,24 @@ +/* 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) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memcpy) +#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset-s390.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memset-s390.S @@ -0,0 +1,113 @@ +/* Set a block of memory to some byte value. 32 bit S/390 version. + Copyright (C) 2012-2015 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 "sysdep.h" +#include "asm-syntax.h" + +/* INPUT PARAMETERS + %r2 = address of memory area + %r3 = byte to fill memory with + %r4 = number of bytes to fill. */ + + .text + +#if IS_IN (libc) + +ENTRY(__memset_z196) + .machine "z196" + .machinemode "zarch_nohighgprs" + llgfr %r4,%r4 + ltgr %r4,%r4 + je .L_Z196_4 + stc %r3,0(%r2) + lr %r1,%r2 + cghi %r4,1 + je .L_Z196_4 + aghi %r4,-2 + srlg %r5,%r4,8 + ltgr %r5,%r5 + jne .L_Z196_1 +.L_Z196_3: + exrl %r4,.L_Z196_17 +.L_Z196_4: + br %r14 +.L_Z196_1: + cgfi %r5,1048576 + jh __memset_mvcle # Switch to mvcle for >256MB +.L_Z196_2: + pfd 2,1024(%r1) + mvc 1(256,%r1),0(%r1) + aghi %r5,-1 + la %r1,256(%r1) + jne .L_Z196_2 + j .L_Z196_3 +.L_Z196_17: + mvc 1(1,%r1),0(%r1) +END(__memset_z196) + +ENTRY(__memset_z10) + .machine "z10" + .machinemode "zarch_nohighgprs" + llgfr %r4,%r4 + cgije %r4,0,.L_Z10_4 + stc %r3,0(%r2) + lr %r1,%r2 + cgije %r4,1,.L_Z10_4 + aghi %r4,-2 + srlg %r5,%r4,8 + cgijlh %r5,0,.L_Z10_15 +.L_Z10_3: + exrl %r4,.L_Z10_18 +.L_Z10_4: + br %r14 +.L_Z10_15: + cgfi %r5,163840 # Switch to mvcle for >40MB + jh __memset_mvcle +.L_Z10_14: + pfd 2,1024(%r1) + mvc 1(256,%r1),0(%r1) + la %r1,256(%r1) + brctg %r5,.L_Z10_14 + j .L_Z10_3 +.L_Z10_18: + mvc 1(1,%r1),0(%r1) +END(__memset_z10) + +ENTRY(__memset_mvcle) + ahi %r4,2 # take back the change done by the caller + lr %r0,%r2 # save source address + lr %r1,%r3 # move pad byte to R1 + lr %r3,%r4 + sr %r4,%r4 # no source for MVCLE, only a pad byte + sr %r5,%r5 +.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend + jo .L0 + lr %r2,%r0 # return value is source address +.L1: + br %r14 +END(__memset_mvcle) + +#endif /* IS_IN (libc) */ + +#include "../memset.S" + +#if !IS_IN (libc) +.globl memset +.set memset,__memset_default +#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-32/multiarch/memset.S +++ /dev/null @@ -1,113 +0,0 @@ -/* Set a block of memory to some byte value. 32 bit S/390 version. - Copyright (C) 2012-2015 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 "sysdep.h" -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = address of memory area - %r3 = byte to fill memory with - %r4 = number of bytes to fill. */ - - .text - -#if IS_IN (libc) - -ENTRY(__memset_z196) - .machine "z196" - .machinemode "zarch_nohighgprs" - llgfr %r4,%r4 - ltgr %r4,%r4 - je .L_Z196_4 - stc %r3,0(%r2) - lr %r1,%r2 - cghi %r4,1 - je .L_Z196_4 - aghi %r4,-2 - srlg %r5,%r4,8 - ltgr %r5,%r5 - jne .L_Z196_1 -.L_Z196_3: - exrl %r4,.L_Z196_17 -.L_Z196_4: - br %r14 -.L_Z196_1: - cgfi %r5,1048576 - jh __memset_mvcle # Switch to mvcle for >256MB -.L_Z196_2: - pfd 2,1024(%r1) - mvc 1(256,%r1),0(%r1) - aghi %r5,-1 - la %r1,256(%r1) - jne .L_Z196_2 - j .L_Z196_3 -.L_Z196_17: - mvc 1(1,%r1),0(%r1) -END(__memset_z196) - -ENTRY(__memset_z10) - .machine "z10" - .machinemode "zarch_nohighgprs" - llgfr %r4,%r4 - cgije %r4,0,.L_Z10_4 - stc %r3,0(%r2) - lr %r1,%r2 - cgije %r4,1,.L_Z10_4 - aghi %r4,-2 - srlg %r5,%r4,8 - cgijlh %r5,0,.L_Z10_15 -.L_Z10_3: - exrl %r4,.L_Z10_18 -.L_Z10_4: - br %r14 -.L_Z10_15: - cgfi %r5,163840 # Switch to mvcle for >40MB - jh __memset_mvcle -.L_Z10_14: - pfd 2,1024(%r1) - mvc 1(256,%r1),0(%r1) - la %r1,256(%r1) - brctg %r5,.L_Z10_14 - j .L_Z10_3 -.L_Z10_18: - mvc 1(1,%r1),0(%r1) -END(__memset_z10) - -ENTRY(__memset_mvcle) - ahi %r4,2 # take back the change done by the caller - lr %r0,%r2 # save source address - lr %r1,%r3 # move pad byte to R1 - lr %r3,%r4 - sr %r4,%r4 # no source for MVCLE, only a pad byte - sr %r5,%r5 -.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend - jo .L0 - lr %r2,%r0 # return value is source address -.L1: - br %r14 -END(__memset_mvcle) - -#endif - -#include "../memset.S" - -#if !IS_IN (libc) -.globl memset -.set memset,__memset_g5 -#endif Index: glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-32/multiarch/memset.c @@ -0,0 +1,23 @@ +/* Multiple versions of memset. + 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/>. */ + +#if IS_IN (libc) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memset) +#endif Index: glibc-2.22/sysdeps/s390/s390-64/memcmp.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/memcmp.S +++ glibc-2.22/sysdeps/s390/s390-64/memcmp.S @@ -27,36 +27,36 @@ .text #ifdef USE_MULTIARCH -ENTRY(__memcmp_z900) +ENTRY(__memcmp_default) #else ENTRY(memcmp) #endif .machine "z900" - ltgr %r4,%r4 - je .L_Z900_4 - aghi %r4,-1 - srlg %r1,%r4,8 - ltgr %r1,%r1 - jne .L_Z900_12 + ltgr %r4,%r4 + je .L_Z900_4 + aghi %r4,-1 + srlg %r1,%r4,8 + ltgr %r1,%r1 + jne .L_Z900_12 .L_Z900_3: - larl %r1,.L_Z900_15 - ex %r4,0(%r1) + larl %r1,.L_Z900_15 + ex %r4,0(%r1) .L_Z900_4: - ipm %r2 - sllg %r2,%r2,34 - srag %r2,%r2,62 - br %r14 + ipm %r2 + sllg %r2,%r2,34 + srag %r2,%r2,62 + br %r14 .L_Z900_12: - clc 0(256,%r3),0(%r2) - jne .L_Z900_4 - la %r3,256(%r3) - la %r2,256(%r2) - brctg %r1,.L_Z900_12 - j .L_Z900_3 + clc 0(256,%r3),0(%r2) + jne .L_Z900_4 + la %r3,256(%r3) + la %r2,256(%r2) + brctg %r1,.L_Z900_12 + j .L_Z900_3 .L_Z900_15: - clc 0(1,%r3),0(%r2) + clc 0(1,%r3),0(%r2) #ifdef USE_MULTIARCH -END(__memcmp_z900) +END(__memcmp_default) #else END(memcmp) libc_hidden_builtin_def (memcmp) Index: glibc-2.22/sysdeps/s390/s390-64/memcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/memcpy.S +++ glibc-2.22/sysdeps/s390/s390-64/memcpy.S @@ -29,37 +29,37 @@ .text #ifdef USE_MULTIARCH -ENTRY(__memcpy_z900) +ENTRY(__memcpy_default) #else ENTRY(memcpy) #endif .machine "z900" - ltgr %r4,%r4 - je .L_Z900_4 - aghi %r4,-1 - srlg %r5,%r4,8 - ltgr %r5,%r5 - lgr %r1,%r2 - jne .L_Z900_13 + ltgr %r4,%r4 + je .L_Z900_4 + aghi %r4,-1 + srlg %r5,%r4,8 + ltgr %r5,%r5 + lgr %r1,%r2 + jne .L_Z900_13 .L_Z900_3: - larl %r5,.L_Z900_15 - ex %r4,0(%r5) + larl %r5,.L_Z900_15 + ex %r4,0(%r5) .L_Z900_4: - br %r14 + br %r14 .L_Z900_13: - chi %r5,4096 # Switch to mvcle for copies >1MB - jh __memcpy_mvcle + chi %r5,4096 # Switch to mvcle for copies >1MB + jh __memcpy_mvcle .L_Z900_12: - mvc 0(256,%r1),0(%r3) - la %r1,256(%r1) - la %r3,256(%r3) - brctg %r5,.L_Z900_12 - j .L_Z900_3 + mvc 0(256,%r1),0(%r3) + la %r1,256(%r1) + la %r3,256(%r3) + brctg %r5,.L_Z900_12 + j .L_Z900_3 .L_Z900_15: - mvc 0(1,%r1),0(%r3) + mvc 0(1,%r1),0(%r3) #ifdef USE_MULTIARCH -END(__memcpy_z900) +END(__memcpy_default) #else END(memcpy) libc_hidden_builtin_def (memcpy) Index: glibc-2.22/sysdeps/s390/s390-64/memset.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/memset.S +++ glibc-2.22/sysdeps/s390/s390-64/memset.S @@ -29,35 +29,35 @@ .text #ifdef USE_MULTIARCH -ENTRY(__memset_z900) +ENTRY(__memset_default) #else ENTRY(memset) #endif .machine "z900" - ltgr %r4,%r4 - je .L_Z900_4 - stc %r3,0(%r2) - cghi %r4,1 - lgr %r1,%r2 - je .L_Z900_4 - aghi %r4,-2 - srlg %r3,%r4,8 - ltgr %r3,%r3 - jne .L_Z900_14 + ltgr %r4,%r4 + je .L_Z900_4 + stc %r3,0(%r2) + cghi %r4,1 + lgr %r1,%r2 + je .L_Z900_4 + aghi %r4,-2 + srlg %r3,%r4,8 + ltgr %r3,%r3 + jne .L_Z900_14 .L_Z900_3: - larl %r3,.L_Z900_18 - ex %r4,0(%r3) + larl %r3,.L_Z900_18 + ex %r4,0(%r3) .L_Z900_4: - br %r14 + br %r14 .L_Z900_14: - mvc 1(256,%r1),0(%r1) - la %r1,256(%r1) - brctg %r3,.L_Z900_14 - j .L_Z900_3 + mvc 1(256,%r1),0(%r1) + la %r1,256(%r1) + brctg %r3,.L_Z900_14 + j .L_Z900_3 .L_Z900_18: - mvc 1(1,%r1),0(%r1) + mvc 1(1,%r1),0(%r1) #ifdef USE_MULTIARCH -END(__memset_z900) +END(__memset_default) #else END(memset) libc_hidden_builtin_def (memset) Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/Makefile =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/Makefile +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/Makefile @@ -1,3 +1,4 @@ ifeq ($(subdir),string) -sysdep_routines += ifunc-resolve memset memcpy memcmp +sysdep_routines += memset memset-s390x memcpy memcpy-s390x \ + memcmp memcmp-s390x endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/ifunc-resolve.c +++ /dev/null @@ -1,76 +0,0 @@ -/* IFUNC resolver function for CPU specific functions. - 64 bit S/390 version. - Copyright (C) 2012-2015 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 <unistd.h> -#include <dl-procinfo.h> - -#define STFLE_BITS_Z10 34 /* General instructions extension */ -#define STFLE_BITS_Z196 45 /* Distinct operands, pop ... */ - -#if IS_IN (libc) - -#define IFUNC_RESOLVE(FUNC) \ - asm (".globl " #FUNC "\n\t" \ - ".type " #FUNC ",@gnu_indirect_function\n\t" \ - ".set " #FUNC ",__resolve_" #FUNC "\n\t" \ - ".globl __GI_" #FUNC "\n\t" \ - ".set __GI_" #FUNC "," #FUNC "\n"); \ - \ - /* Make the declarations of the optimized functions hidden in order - to prevent GOT slots being generated for them. */ \ - extern void *__##FUNC##_z196 attribute_hidden; \ - extern void *__##FUNC##_z10 attribute_hidden; \ - extern void *__##FUNC##_z900 attribute_hidden; \ - \ - void *__resolve_##FUNC (unsigned long int dl_hwcap) \ - { \ - if (dl_hwcap & HWCAP_S390_STFLE) \ - { \ - /* We want just 1 double word to be returned. */ \ - register unsigned long reg0 asm("0") = 0; \ - unsigned long stfle_bits; \ - \ - asm volatile(".machine push" "\n\t" \ - ".machine \"z9-109\"" "\n\t" \ - "stfle %0" "\n\t" \ - ".machine pop" "\n" \ - : "=QS" (stfle_bits), "+d" (reg0) \ - : : "cc"); \ - \ - if ((stfle_bits & (1UL << (63 - STFLE_BITS_Z196))) != 0) \ - return &__##FUNC##_z196; \ - else if ((stfle_bits & (1UL << (63 - STFLE_BITS_Z10))) != 0) \ - return &__##FUNC##_z10; \ - else \ - return &__##FUNC##_z900; \ - } \ - else \ - return &__##FUNC##_z900; \ - } - -IFUNC_RESOLVE(memset) -IFUNC_RESOLVE(memcmp) -asm(".weak bcmp ; bcmp = memcmp"); - -/* In the static lib memcpy is needed before the reloc is resolved. */ -#ifdef SHARED -IFUNC_RESOLVE(memcpy) -#endif - -#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp-s390x.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp-s390x.S @@ -0,0 +1,101 @@ +/* CPU specific memcmp implementations. 64 bit S/390 version. + Copyright (C) 2012-2015 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 "sysdep.h" +#include "asm-syntax.h" + +/* INPUT PARAMETERS + %r2 = address of first memory area + %r3 = address of second memory area + %r4 = number of bytes to compare. */ + + .text + +#if IS_IN (libc) + +ENTRY(__memcmp_z196) + .machine "z196" + ltgr %r4,%r4 + je .L_Z196_4 + aghi %r4,-1 + srlg %r1,%r4,8 + ltgr %r1,%r1 + jne .L_Z196_2 +.L_Z196_3: + exrl %r4,.L_Z196_14 +.L_Z196_4: + ipm %r2 + sllg %r2,%r2,34 + srag %r2,%r2,62 + br %r14 +.L_Z196_17: + la %r3,256(%r3) + la %r2,256(%r2) + aghi %r1,-1 + je .L_Z196_3 +.L_Z196_2: + pfd 1,512(%r3) + pfd 1,512(%r2) + clc 0(256,%r3),0(%r2) + je .L_Z196_17 + ipm %r2 + sllg %r2,%r2,34 + srag %r2,%r2,62 + br %r14 +.L_Z196_14: + clc 0(1,%r3),0(%r2) +END(__memcmp_z196) + +ENTRY(__memcmp_z10) + .machine "z10" + ltgr %r4,%r4 + je .L_Z10_4 + aghi %r4,-1 + srlg %r1,%r4,8 + cgijlh %r1,0,.L_Z10_12 +.L_Z10_3: + exrl %r4,.L_Z10_15 +.L_Z10_4: + ipm %r2 + sllg %r2,%r2,34 + srag %r2,%r2,62 + br %r14 +.L_Z10_12: + pfd 1,512(%r3) + pfd 1,512(%r2) + clc 0(256,%r3),0(%r2) + jne .L_Z10_4 + la %r3,256(%r3) + la %r2,256(%r2) + brctg %r1,.L_Z10_12 + j .L_Z10_3 +.L_Z10_15: + clc 0(1,%r3),0(%r2) +END(__memcmp_z10) + +#endif /* IS_IN (libc) */ + +#include "../memcmp.S" + +#if !IS_IN (libc) +.globl memcmp +.set memcmp,__memcmp_default +.weak bcmp +.set bcmp,__memcmp_default +#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memcmp.S +++ /dev/null @@ -1,101 +0,0 @@ -/* CPU specific memcmp implementations. 64 bit S/390 version. - Copyright (C) 2012-2015 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 "sysdep.h" -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = address of first memory area - %r3 = address of second memory area - %r4 = number of bytes to compare. */ - - .text - -#if IS_IN (libc) - -ENTRY(__memcmp_z196) - .machine "z196" - ltgr %r4,%r4 - je .L_Z196_4 - aghi %r4,-1 - srlg %r1,%r4,8 - ltgr %r1,%r1 - jne .L_Z196_2 -.L_Z196_3: - exrl %r4,.L_Z196_14 -.L_Z196_4: - ipm %r2 - sllg %r2,%r2,34 - srag %r2,%r2,62 - br %r14 -.L_Z196_17: - la %r3,256(%r3) - la %r2,256(%r2) - aghi %r1,-1 - je .L_Z196_3 -.L_Z196_2: - pfd 1,512(%r3) - pfd 1,512(%r2) - clc 0(256,%r3),0(%r2) - je .L_Z196_17 - ipm %r2 - sllg %r2,%r2,34 - srag %r2,%r2,62 - br %r14 -.L_Z196_14: - clc 0(1,%r3),0(%r2) -END(__memcmp_z196) - -ENTRY(__memcmp_z10) - .machine "z10" - ltgr %r4,%r4 - je .L_Z10_4 - aghi %r4,-1 - srlg %r1,%r4,8 - cgijlh %r1,0,.L_Z10_12 -.L_Z10_3: - exrl %r4,.L_Z10_15 -.L_Z10_4: - ipm %r2 - sllg %r2,%r2,34 - srag %r2,%r2,62 - br %r14 -.L_Z10_12: - pfd 1,512(%r3) - pfd 1,512(%r2) - clc 0(256,%r3),0(%r2) - jne .L_Z10_4 - la %r3,256(%r3) - la %r2,256(%r2) - brctg %r1,.L_Z10_12 - j .L_Z10_3 -.L_Z10_15: - clc 0(1,%r3),0(%r2) -END(__memcmp_z10) - -#endif - -#include "../memcmp.S" - -#if !IS_IN (libc) -.globl memcmp -.set memcmp,__memcmp_z900 -.weak bcmp -.set bcmp,__memcmp_z900 -#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcmp.c @@ -0,0 +1,24 @@ +/* Multiple versions of memcmp. + 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/>. */ + +#if IS_IN (libc) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memcmp) +asm(".weak bcmp ; bcmp = memcmp"); +#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy-s390x.S @@ -0,0 +1,94 @@ +/* CPU specific memcpy implementations. 64 bit S/390 version. + Copyright (C) 2012-2015 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 "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(__memcpy_z196) + .machine "z196" + ltgr %r4,%r4 + je .L_Z196_4 + aghi %r4,-1 + lgr %r1,%r2 + 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(__memcpy_z10) + .machine "z10" + cgije %r4,0,.L_Z10_4 + aghi %r4,-1 + lgr %r1,%r2 + 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 /* SHARED && IS_IN (libc) */ + +#include "../memcpy.S" + +#if !defined SHARED || !IS_IN (libc) +.globl memcpy +.set memcpy,__memcpy_default +#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memcpy.S +++ /dev/null @@ -1,94 +0,0 @@ -/* CPU specific memcpy implementations. 64 bit S/390 version. - Copyright (C) 2012-2015 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 "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(__memcpy_z196) - .machine "z196" - ltgr %r4,%r4 - je .L_Z196_4 - aghi %r4,-1 - lgr %r1,%r2 - 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(__memcpy_z10) - .machine "z10" - cgije %r4,0,.L_Z10_4 - aghi %r4,-1 - lgr %r1,%r2 - 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 - -#include "../memcpy.S" - -#if !defined SHARED || !IS_IN (libc) -.globl memcpy -.set memcpy,__memcpy_z900 -#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memcpy.c @@ -0,0 +1,24 @@ +/* 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) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memcpy) +#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset-s390x.S =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memset-s390x.S @@ -0,0 +1,109 @@ +/* Set a block of memory to some byte value. 64 bit S/390 version. + Copyright (C) 2012-2015 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 "sysdep.h" +#include "asm-syntax.h" + +/* INPUT PARAMETERS + %r2 = address of memory area + %r3 = byte to fill memory with + %r4 = number of bytes to fill. */ + + .text + +#if IS_IN (libc) + +ENTRY(__memset_z196) + .machine "z196" + ltgr %r4,%r4 + je .L_Z196_4 + stc %r3,0(%r2) + lgr %r1,%r2 + cghi %r4,1 + je .L_Z196_4 + aghi %r4,-2 + srlg %r5,%r4,8 + ltgr %r5,%r5 + jne .L_Z196_1 +.L_Z196_3: + exrl %r4,.L_Z196_17 +.L_Z196_4: + br %r14 +.L_Z196_1: + cgfi %r5,1048576 + jh __memset_mvcle # Switch to mvcle for >256MB +.L_Z196_2: + pfd 2,1024(%r1) + mvc 1(256,%r1),0(%r1) + aghi %r5,-1 + la %r1,256(%r1) + jne .L_Z196_2 + j .L_Z196_3 +.L_Z196_17: + mvc 1(1,%r1),0(%r1) +END(__memset_z196) + +ENTRY(__memset_z10) + .machine "z10" + cgije %r4,0,.L_Z10_4 + stc %r3,0(%r2) + lgr %r1,%r2 + cgije %r4,1,.L_Z10_4 + aghi %r4,-2 + srlg %r5,%r4,8 + cgijlh %r5,0,.L_Z10_15 +.L_Z10_3: + exrl %r4,.L_Z10_18 +.L_Z10_4: + br %r14 +.L_Z10_15: + cgfi %r5,163840 # Switch to mvcle for >40MB + jh __memset_mvcle +.L_Z10_14: + pfd 2,1024(%r1) + mvc 1(256,%r1),0(%r1) + la %r1,256(%r1) + brctg %r5,.L_Z10_14 + j .L_Z10_3 +.L_Z10_18: + mvc 1(1,%r1),0(%r1) +END(__memset_z10) + +ENTRY(__memset_mvcle) + aghi %r4,2 # take back the change done by the caller + lgr %r0,%r2 # save source address + lgr %r1,%r3 # move pad byte to R1 + lgr %r3,%r4 # move length to r3 + sgr %r4,%r4 # no source for MVCLE, only a pad byte + sgr %r5,%r5 +.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend + jo .L0 + lgr %r2,%r0 # return value is source address +.L1: + br %r14 +END(__memset_mvcle) + +#endif /* IS_IN (libc) */ + +#include "../memset.S" + +#if !IS_IN (libc) +.globl memset +.set memset,__memset_default +#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.S =================================================================== --- glibc-2.22.orig/sysdeps/s390/s390-64/multiarch/memset.S +++ /dev/null @@ -1,109 +0,0 @@ -/* Set a block of memory to some byte value. 64 bit S/390 version. - Copyright (C) 2012-2015 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 "sysdep.h" -#include "asm-syntax.h" - -/* INPUT PARAMETERS - %r2 = address of memory area - %r3 = byte to fill memory with - %r4 = number of bytes to fill. */ - - .text - -#if IS_IN (libc) - -ENTRY(__memset_z196) - .machine "z196" - ltgr %r4,%r4 - je .L_Z196_4 - stc %r3,0(%r2) - lgr %r1,%r2 - cghi %r4,1 - je .L_Z196_4 - aghi %r4,-2 - srlg %r5,%r4,8 - ltgr %r5,%r5 - jne .L_Z196_1 -.L_Z196_3: - exrl %r4,.L_Z196_17 -.L_Z196_4: - br %r14 -.L_Z196_1: - cgfi %r5,1048576 - jh __memset_mvcle # Switch to mvcle for >256MB -.L_Z196_2: - pfd 2,1024(%r1) - mvc 1(256,%r1),0(%r1) - aghi %r5,-1 - la %r1,256(%r1) - jne .L_Z196_2 - j .L_Z196_3 -.L_Z196_17: - mvc 1(1,%r1),0(%r1) -END(__memset_z196) - -ENTRY(__memset_z10) - .machine "z10" - cgije %r4,0,.L_Z10_4 - stc %r3,0(%r2) - lgr %r1,%r2 - cgije %r4,1,.L_Z10_4 - aghi %r4,-2 - srlg %r5,%r4,8 - cgijlh %r5,0,.L_Z10_15 -.L_Z10_3: - exrl %r4,.L_Z10_18 -.L_Z10_4: - br %r14 -.L_Z10_15: - cgfi %r5,163840 # Switch to mvcle for >40MB - jh __memset_mvcle -.L_Z10_14: - pfd 2,1024(%r1) - mvc 1(256,%r1),0(%r1) - la %r1,256(%r1) - brctg %r5,.L_Z10_14 - j .L_Z10_3 -.L_Z10_18: - mvc 1(1,%r1),0(%r1) -END(__memset_z10) - -ENTRY(__memset_mvcle) - aghi %r4,2 # take back the change done by the caller - lgr %r0,%r2 # save source address - lgr %r1,%r3 # move pad byte to R1 - lgr %r3,%r4 # move length to r3 - sgr %r4,%r4 # no source for MVCLE, only a pad byte - sgr %r5,%r5 -.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend - jo .L0 - lgr %r2,%r0 # return value is source address -.L1: - br %r14 -END(__memset_mvcle) - -#endif - -#include "../memset.S" - -#if !IS_IN (libc) -.globl memset -.set memset,__memset_z900 -#endif Index: glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.c =================================================================== --- /dev/null +++ glibc-2.22/sysdeps/s390/s390-64/multiarch/memset.c @@ -0,0 +1,23 @@ +/* Multiple versions of memset. + 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/>. */ + +#if IS_IN (libc) +# include <ifunc-resolve.h> + +s390_libc_ifunc (memset) +#endif
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