PowerPC: multiarch copysign/copysignf for PowerPC64

1 files changed, 51 insertions, 0 deletions

diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
new file mode 100644
index 0000000000..ee7ce0a886
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_copysign.c
@@ -0,0 +1,51 @@
+/* Multiple versions of copysign.
+   Copyright (C) 2013 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