From 7560c8b2254c082f754f1e8fd390d4b50146dcdd Mon Sep 17 00:00:00 2001
From: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com>
Date: Wed, 30 Jul 2014 11:30:28 -0500
Subject: [PATCH] PowerPC: multiarch copysign/copysignf for PowerPC64
commit 2568f3fa69bbf70d0bea457cb7cbbf3bee45bfe5
Author: Adhemerval Zanella <azanella@linux.vnet.ibm.com>
Date: Fri Dec 13 15:32:58 2013 -0500
---
sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile | 6 ++-
.../powerpc64/fpu/multiarch/s_copysign-power6.S | 33 ++++++++++++++
.../powerpc64/fpu/multiarch/s_copysign-ppc64.S | 35 +++++++++++++++
.../powerpc/powerpc64/fpu/multiarch/s_copysign.c | 51 ++++++++++++++++++++++
.../powerpc/powerpc64/fpu/multiarch/s_copysignf.c | 32 ++++++++++++++
5 files changed, 155 insertions(+), 2 deletions(-)
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
create mode 100644 sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
diff --git glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
index 4cdb383..3af4ac3 100644
--- glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile
@@ -1,6 +1,7 @@
ifeq ($(subdir),math)
sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
- s_isnan-power5 s_isnan-ppc64
+ s_isnan-power5 s_isnan-ppc64 s_copysign-power6 \
+ s_copysign-ppc64
libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
s_isnan-power5 s_isnan-ppc64 s_llround-power6x \
@@ -9,5 +10,6 @@ libm-sysdep_routines += s_isnan-power7 s_isnan-power6x s_isnan-power6 \
s_floor-power5+ s_floor-ppc64 s_floorf-power5+ \
s_floorf-ppc64 s_round-power5+ s_round-ppc64 \
s_roundf-power5+ s_roundf-ppc64 s_trunc-power5+ \
- s_trunc-ppc64 s_truncf-power5+ s_truncf-ppc64
+ s_trunc-ppc64 s_truncf-power5+ s_truncf-ppc64 \
+ s_copysign-power6 s_copysign-ppc64
endif
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
new file mode 100644
index 0000000..4fa34a6
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-power6.S
@@ -0,0 +1,33 @@
+/* copysign(). PowerPC64 default version.
+ Copyright (C) 2013-2014 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 <math_ldbl_opt.h>
+
+#undef weak_alias
+#define weak_alias(a,b)
+#undef strong_alias
+#define strong_alias(a,b)
+#undef compat_symbol
+#define compat_symbol(a, b, c, d)
+#undef hidden_def
+#define hidden_def(name)
+
+#define __copysign __copysign_power6
+
+#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
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
new file mode 100644
index 0000000..a5cdfc2
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign-ppc64.S
@@ -0,0 +1,35 @@
+/* copysign(). PowerPC64 default version.
+ Copyright (C) 2010-2014 Free Software Foundation, Inc.
+ Contributed by Luis Machado <luisgpm@br.ibm.com>.
+ 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 <math_ldbl_opt.h>
+
+#undef weak_alias
+#define weak_alias(a,b)
+#undef strong_alias
+#define strong_alias(a,b)
+#undef compat_symbol
+#define compat_symbol(a, b, c, d)
+
+#define __copysign __copysign_ppc64
+#undef hidden_def
+#define hidden_def(name) \
+ strong_alias (__copysign_ppc64, __GI___copysign)
+
+#include <sysdeps/powerpc/powerpc64/fpu/s_copysign.S>
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
new file mode 100644
index 0000000..f3e6b3a
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
@@ -0,0 +1,51 @@
+/* Multiple versions of copysign.
+ Copyright (C) 2013-2014 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/>. */
+
+/* Redefine copysign so that the compiler won't complain about the type
+ mismatch with the IFUNC selector in strong_alias below. */
+#undef __copysign
+#define __copysign __redirect_copysign
+#include <math.h>
+#include <math_ldbl_opt.h>
+#undef __copysign
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+extern __typeof (__redirect_copysign) __copysign_ppc64 attribute_hidden;
+extern __typeof (__redirect_copysign) __copysign_power6 attribute_hidden;
+
+extern __typeof (__redirect_copysign) __libm_copysign;
+libc_ifunc (__libm_copysign,
+ (hwcap & PPC_FEATURE_ARCH_2_05)
+ ? __copysign_power6
+ : __copysign_ppc64);
+
+strong_alias (__libm_copysign, __copysign)
+weak_alias (__copysign, copysign)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__copysign,copysignl)
+strong_alias(__copysign,__copysignl)
+#endif
+#ifdef IS_IN_libm
+# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
+compat_symbol (libm, __copysign, copysignl, GLIBC_2_0);
+# endif
+#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __copysign, copysignl, GLIBC_2_0);
+#endif
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
new file mode 100644
index 0000000..55cc272
--- /dev/null
+++ glibc-2.17-c758a686/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysignf.c
@@ -0,0 +1,32 @@
+/* Multiple versions of copysignf.
+ Copyright (C) 2013-2014 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 <math.h>
+#include <shlib-compat.h>
+#include "init-arch.h"
+
+/* It's safe to use double-precision implementation for single-precision. */
+extern __typeof (__copysignf) __copysign_ppc64 attribute_hidden;
+extern __typeof (__copysignf) __copysign_power6 attribute_hidden;
+
+libc_ifunc (__copysignf,
+ (hwcap & PPC_FEATURE_ARCH_2_05)
+ ? __copysign_power6
+ : __copysign_ppc64);
+
+weak_alias (__copysignf, copysignf)
--
1.8.3.1