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Define and use libm_alias_ldouble.
Continuing the process of setting up common macros for libm function aliases, with a view to using them to define _FloatN / _FloatNx aliases in future, this patch adds a libm_alias_ldouble macro and uses it in the type-generic templates. Since math-type-macros-ldouble.h already did the appropriate thing for each symbol (weak_alias or long_double_symbol), this is just a straightforward rearrangement of code, to make the required logic available in a place that can also be used outside of the type-generic templates in future (in particular, to eliminate various wrappers for functions in ldbl-opt and ldbl-64-128). Tested for x86_64. Also tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch. * sysdeps/generic/libm-alias-ldouble.h: New file. * sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h: Likewise. * sysdeps/ieee754/ldbl-opt/math-type-macros-ldouble.h: Remove. * sysdeps/generic/math-type-macros-ldouble.h: Include <libm-alias-ldouble.h>. [!declare_mgen_alias] (declare_mgen_alias): Define to use libm_alias_ldouble.
This commit is contained in:
Joseph Myers
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ChangeLog
10
ChangeLog
@ -1,3 +1,13 @@
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2017-09-13 Joseph Myers <joseph@codesourcery.com>
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* sysdeps/generic/libm-alias-ldouble.h: New file.
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* sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h: Likewise.
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* sysdeps/ieee754/ldbl-opt/math-type-macros-ldouble.h: Remove.
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* sysdeps/generic/math-type-macros-ldouble.h: Include
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<libm-alias-ldouble.h>.
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[!declare_mgen_alias] (declare_mgen_alias): Define to use
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libm_alias_ldouble.
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2017-09-13 Szabolcs Nagy <szabolcs.nagy@arm.com>
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* sysdeps/ieee754/dbl-64/w_exp_compat.c: Move to...
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36
sysdeps/generic/libm-alias-ldouble.h
Normal file
36
sysdeps/generic/libm-alias-ldouble.h
Normal file
@ -0,0 +1,36 @@
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/* Define aliases for libm long double functions.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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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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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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#ifndef _LIBM_ALIAS_LDOUBLE_H
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#define _LIBM_ALIAS_LDOUBLE_H
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/* Define aliases for a long double libm function that has internal
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name FROM ## l ## R and public names TO ## suffix ## R for each
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suffix of a supported floating-point type with the same format as
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long double. This should only be used for functions where such
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public names exist for _FloatN types, not for
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implementation-namespace exported names (where there is one name
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per format, not per type) or for obsolescent functions not provided
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for _FloatN types. */
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#define libm_alias_ldouble_r(from, to, r) \
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weak_alias (from ## l ## r, to ## l ## r)
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/* Likewise, but without the R suffix. */
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#define libm_alias_ldouble(from, to) libm_alias_ldouble_r (from, to, )
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#endif
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@ -27,6 +27,12 @@
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#define CFLOAT _Complex long double
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#define M_STRTO_NAN __strtold_nan
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#include <libm-alias-ldouble.h>
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#ifndef declare_mgen_alias
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# define declare_mgen_alias(from, to) libm_alias_ldouble (from, to)
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#endif
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/* Supply the generic macros. */
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#include <math-type-macros.h>
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41
sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h
Normal file
41
sysdeps/ieee754/ldbl-opt/libm-alias-ldouble.h
Normal file
@ -0,0 +1,41 @@
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/* Define aliases for libm long double functions. ldbl-opt version.
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Copyright (C) 2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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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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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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#ifndef _LIBM_ALIAS_LDOUBLE_H
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#define _LIBM_ALIAS_LDOUBLE_H
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#include <math_ldbl_opt.h>
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#include <ldbl-compat-choose.h>
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/* Define aliases for a long double libm function that has internal
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name FROM ## l ## R and public names TO ## suffix ## R for each
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suffix of a supported floating-point type with the same format as
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long double. This should only be used for functions where such
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public names exist for _FloatN types, not for
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implementation-namespace exported names (where there is one name
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per format, not per type) or for obsolescent functions not provided
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for _FloatN types. */
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#define libm_alias_ldouble_r(from, to, r) \
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LONG_DOUBLE_COMPAT_CHOOSE_libm_ ## to ## l ## r \
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(long_double_symbol (libm, from ## l ## r, to ## l ## r), \
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weak_alias (from ## l ## r, to ## l ## r));
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/* Likewise, but without the R suffix. */
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#define libm_alias_ldouble(from, to) libm_alias_ldouble_r (from, to, )
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#endif
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@ -1,38 +0,0 @@
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/* Overrides for ldbl-opt versioning for long double types.
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Copyright (C) 2016-2017 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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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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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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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#ifndef _MATH_TYPE_MACROS_LDOUBLE
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#include <math_ldbl_opt.h>
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#include <ldbl-compat-choose.h>
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#define maybe_long_double_symbol(lib, from, to) \
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LONG_DOUBLE_COMPAT_CHOOSE_ ## lib ## _ ## to (long_double_symbol (lib, \
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from, \
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to), \
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weak_alias (from, to))
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/* Use properly versioned symbols for long double on platforms where
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it was not always a distinct type. */
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#if !defined declare_mgen_alias
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# define declare_mgen_alias(from, to) \
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maybe_long_double_symbol (libm, from ## l, to ## l);
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#endif
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#include_next <math-type-macros-ldouble.h>
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#endif
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