mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
61 lines
2.4 KiB
C
61 lines
2.4 KiB
C
/* IFUNC resolver function for CPU specific functions.
|
|
32/64 bit S/390 version.
|
|
Copyright (C) 2015-2022 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
|
|
<https://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_STFLE_BITS_ARCH13_MIE3 61 /* Miscellaneous-Instruction-Extensions
|
|
Facility 3, e.g. mvcrl. */
|
|
|
|
#define S390_IS_ARCH13_MIE3(STFLE_BITS) \
|
|
((STFLE_BITS & (1ULL << (63 - S390_STFLE_BITS_ARCH13_MIE3))) != 0)
|
|
|
|
#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_expr_stfle_init() \
|
|
unsigned long long stfle_bits = 0ULL; \
|
|
if (__glibc_likely ((hwcap & HWCAP_S390_STFLE) \
|
|
&& (hwcap & HWCAP_S390_ZARCH) \
|
|
&& (hwcap & HWCAP_S390_HIGH_GPRS))) \
|
|
{ \
|
|
S390_STORE_STFLE (stfle_bits); \
|
|
}
|
|
|
|
#define s390_libc_ifunc_expr_init()
|
|
#define s390_libc_ifunc_expr(TYPE_FUNC, FUNC, EXPR) \
|
|
__ifunc (TYPE_FUNC, FUNC, EXPR, unsigned long int hwcap, \
|
|
s390_libc_ifunc_expr_init);
|