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From 7560c8b2254c082f754f1e8fd390d4b50146dcdd Mon Sep 17 00:00:00 2001
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From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
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Date: Wed, 30 Jul 2014 11:30:28 -0500
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Subject: [PATCH] PowerPC: multiarch copysign/copysignf for PowerPC64
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commit 2568f3fa69bbf70d0bea457cb7cbbf3bee45bfe5
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Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
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Date: Fri Dec 13 15:32:58 2013 -0500
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---
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sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile | 6 ++-
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.../powerpc64/fpu/multiarch/s_copysign-power6.S | 33 ++++++++++++++
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.../powerpc64/fpu/multiarch/s_copysign-ppc64.S | 35 +++++++++++++++
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.../powerpc/powerpc64/fpu/multiarch/s_copysign.c | 51 ++++++++++++++++++++++
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.../powerpc/powerpc64/fpu/multiarch/s_copysignf.c | 32 ++++++++++++++
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5 files changed, 155 insertions(+), 2 deletions(-)
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create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
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create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
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create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
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create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
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index 4cdb383..3af4ac3 100644
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--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
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@@ -1,6 +1,7 @@
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ifeq ($(subdir),math)
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sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
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- s_isnan-power5 s_isnan-ppc64
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+ s_isnan-power5 s_isnan-ppc64 s_copysign-power6 \
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+ s_copysign-ppc64
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libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
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s_isnan-power5 s_isnan-ppc64 s_llround-power6x \
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@@ -9,5 +10,6 @@ libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
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s_floor-power5+ s_floor-ppc64 s_floorf-power5+ \
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s_floorf-ppc64 s_round-power5+ s_round-ppc64 \
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s_roundf-power5+ s_roundf-ppc64 s_trunc-power5+ \
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- s_trunc-ppc64 s_truncf-power5+ s_truncf-ppc64
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+ s_trunc-ppc64 s_truncf-power5+ s_truncf-ppc64 \
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+ s_copysign-power6 s_copysign-ppc64
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endif
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
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new file mode 100644
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index 0000000..4fa34a6
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
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@@ -0,0 +1,33 @@
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+/* copysign(). PowerPC64 default version.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+#include <math_ldbl_opt.h>
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+
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+#undef weak_alias
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+#define weak_alias(a,b)
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+#undef strong_alias
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+#define strong_alias(a,b)
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+#undef compat_symbol
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+#define compat_symbol(a, b, c, d)
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+#undef hidden_def
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+#define hidden_def(name)
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+
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+#define __copysign __copysign_power6
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+
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+#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
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new file mode 100644
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index 0000000..a5cdfc2
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
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@@ -0,0 +1,35 @@
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+/* copysign(). PowerPC64 default version.
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+ Copyright (C) 2010-2014 Free Software Foundation, Inc.
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+ Contributed by Luis Machado <luisgpm@br.ibm.com>.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <sysdep.h>
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+#include <math_ldbl_opt.h>
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+
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+#undef weak_alias
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+#define weak_alias(a,b)
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+#undef strong_alias
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+#define strong_alias(a,b)
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+#undef compat_symbol
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+#define compat_symbol(a, b, c, d)
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+
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+#define __copysign __copysign_ppc64
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+#undef hidden_def
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+#define hidden_def(name) \
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+ strong_alias (__copysign_ppc64, __GI___copysign)
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+
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+#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
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new file mode 100644
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index 0000000..f3e6b3a
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
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@@ -0,0 +1,51 @@
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+/* Multiple versions of copysign.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+/* Redefine copysign so that the compiler won't complain about the type
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+ mismatch with the IFUNC selector in strong_alias below. */
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+#undef __copysign
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+#define __copysign __redirect_copysign
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+#include <math.h>
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+#include <math_ldbl_opt.h>
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+#undef __copysign
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+#include <shlib-compat.h>
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+#include "init-arch.h"
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+
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+extern __typeof (__redirect_copysign) __copysign_ppc64 attribute_hidden;
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+extern __typeof (__redirect_copysign) __copysign_power6 attribute_hidden;
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+
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+extern __typeof (__redirect_copysign) __libm_copysign;
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+libc_ifunc (__libm_copysign,
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+ (hwcap & PPC_FEATURE_ARCH_2_05)
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+ ? __copysign_power6
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+ : __copysign_ppc64);
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+
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+strong_alias (__libm_copysign, __copysign)
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+weak_alias (__copysign, copysign)
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+
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+#ifdef NO_LONG_DOUBLE
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+weak_alias (__copysign,copysignl)
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+strong_alias(__copysign,__copysignl)
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+#endif
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+#ifdef IS_IN_libm
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+# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
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+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0);
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+# endif
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+#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
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+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
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+#endif
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diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
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new file mode 100644
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index 0000000..55cc272
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--- /dev/null
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+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
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@@ -0,0 +1,32 @@
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+/* Multiple versions of copysignf.
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+ Copyright (C) 2013-2014 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <http://www.gnu.org/licenses/>. */
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+
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+#include <math.h>
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+#include <shlib-compat.h>
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+#include "init-arch.h"
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+
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+/* It's safe to use double-precision implementation for single-precision. */
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+extern __typeof (__copysignf) __copysign_ppc64 attribute_hidden;
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+extern __typeof (__copysignf) __copysign_power6 attribute_hidden;
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+
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+libc_ifunc (__copysignf,
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+ (hwcap & PPC_FEATURE_ARCH_2_05)
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+ ? __copysign_power6
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+ : __copysign_ppc64);
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+
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+weak_alias (__copysignf, copysignf)
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--
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1.8.3.1
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