diff options
Diffstat (limited to 'sysdeps/s390/s390-32/multiarch/ifunc-resolve.c')
| -rw-r--r-- | sysdeps/s390/s390-32/multiarch/ifunc-resolve.c | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c b/sysdeps/s390/s390-32/multiarch/ifunc-resolve.c deleted file mode 100644 index 8e0cdd5df1..0000000000 --- a/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 |