From: Raphael Moreira Zinsly Date: Thu, 25 Feb 2021 13:42:27 +0000 (-0300) Subject: powerpc: Add log IFUNC multiarch support for POWER10 X-Git-Tag: upstream/2.34~561 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=25cb72820ac40e73acf130edf97c895cf9b0b43a;p=platform%2Fupstream%2Fglibc.git powerpc: Add log IFUNC multiarch support for POWER10 Checked on ppc64le built without --with-cpu, with --with-cpu=power9 and with --disable-multi-arch. Reviewed-by: Matheus Castanho --- diff --git a/config.h.in b/config.h.in index 96a08c7..ea56e5b 100644 --- a/config.h.in +++ b/config.h.in @@ -23,6 +23,9 @@ /* On powerpc64, use @notoc. */ #undef USE_PPC64_NOTOC +/* On powerpc64, define if the compiler supports -mcpu=power10. */ +#undef USE_PPC64_MCPU_POWER10 + /* Define if _Unwind_Find_FDE should be exported from glibc. */ #undef EXPORT_UNWIND_FIND_FDE diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile index 22252d9..cc073b5 100644 --- a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile @@ -208,4 +208,12 @@ object-suffixes-left := $(all-object-suffixes) include $(o-iterator) endif # do_f128_multiarch + +libm-sysdep_routines += e_log-ppc64 + +ifeq ($(mcpu-power10), yes) +libm-sysdep_routines += e_log-power10 +CFLAGS-e_log-power10.c += -mcpu=power10 +endif + endif diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure new file mode 100644 index 0000000..4ca1d15 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure @@ -0,0 +1,33 @@ +# This file is generated from configure.ac by Autoconf. DO NOT EDIT! + +OLD_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -mcpu=power10" + +{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -mcpu=power10" >&5 +$as_echo_n "checking if the compiler supports -mcpu=power10... " >&6; } +if ${libc_cv_mcpu_power10+:} false; then : + $as_echo_n "(cached) " >&6 +else + +cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ + + +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + libc_cv_mcpu_power10=yes +else + libc_cv_mcpu_power10=no +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext +fi +{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_mcpu_power10" >&5 +$as_echo "$libc_cv_mcpu_power10" >&6; } +config_vars="$config_vars +mcpu-power10 = $libc_cv_mcpu_power10" +if test "$libc_cv_mcpu_power10" == "yes"; then : + + $as_echo "#define USE_PPC64_MCPU_POWER10 1" >>confdefs.h + +fi +CFLAGS="$OLD_CFLAGS" diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac new file mode 100644 index 0000000..ceb578c --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/configure.ac @@ -0,0 +1,14 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. + +OLD_CFLAGS="$CFLAGS" +CFLAGS="$CFLAGS -mcpu=power10" +AC_CACHE_CHECK([if the compiler supports -mcpu=power10], + libc_cv_mcpu_power10, [ +AC_COMPILE_IFELSE([AC_LANG_SOURCE([[ +]])], + [libc_cv_mcpu_power10=yes], + [libc_cv_mcpu_power10=no])]) +LIBC_CONFIG_VAR([mcpu-power10], [$libc_cv_mcpu_power10]) +AS_IF([[test "$libc_cv_mcpu_power10" == "yes"]],[ + AC_DEFINE(USE_PPC64_MCPU_POWER10)]) +CFLAGS="$OLD_CFLAGS" diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-power10.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-power10.c new file mode 100644 index 0000000..4226e07 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-power10.c @@ -0,0 +1,4 @@ +#include + +#define __log __log_power10 +#include diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-ppc64.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-ppc64.c new file mode 100644 index 0000000..cb902d7 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log-ppc64.c @@ -0,0 +1,4 @@ +#include +#define __log __log_ppc64 + +#include diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log.c new file mode 100644 index 0000000..b796109 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/e_log.c @@ -0,0 +1,37 @@ +/* Multiple versions of IEEE 754 log. + Copyright (C) 2021 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 +#include "init-arch.h" +#include + +extern double __redirect_ieee754_log (double); + +extern __typeof (log) __log_ppc64 attribute_hidden; +#ifdef USE_PPC64_MCPU_POWER10 +extern __typeof (log) __log_power10 attribute_hidden; +#endif + +libc_ifunc_redirected (__redirect_ieee754_log, __ieee754_log, +#ifdef USE_PPC64_MCPU_POWER10 + (hwcap2 & PPC_FEATURE2_ARCH_3_1) + ? __log_power10 : +#endif + __log_ppc64); + +libm_alias_finite (__ieee754_log, __log) diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_log.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_log.c new file mode 100644 index 0000000..9b2b018 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_log.c @@ -0,0 +1 @@ +#include