From: Joseph Myers Date: Thu, 14 Sep 2017 01:11:46 +0000 (+0000) Subject: Define and use libm_alias_float128. X-Git-Tag: upstream/2.30~2596 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=02093e62226ca5ce04a2f69c0682eea828a6f9ee;p=platform%2Fupstream%2Fglibc.git Define and use libm_alias_float128. 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_float128 macro and uses it in the type-generic templates. (_Float128 functions will end up with _Float64x aliases on powerpc64le, but not on x86_64/x86/ia64 because _Float64x has long double format there, and the macro will provide a single place for the conditionals for that choice, as well as for once ldbl-128 functions always build *f128 and need conditionals for whether to have *l aliases.) 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-float128.h: New file. * sysdeps/generic/math-type-macros-float128.h: Include . [!declare_mgen_alias] (declare_mgen_alias): Define macro. --- diff --git a/ChangeLog b/ChangeLog index 3f2e355..564c7e0 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,10 @@ +2017-09-14 Joseph Myers + + * sysdeps/generic/libm-alias-float128.h: New file. + * sysdeps/generic/math-type-macros-float128.h: Include + . + [!declare_mgen_alias] (declare_mgen_alias): Define macro. + 2017-09-13 Joseph Myers * sysdeps/generic/libm-alias-ldouble.h: New file. diff --git a/sysdeps/generic/libm-alias-float128.h b/sysdeps/generic/libm-alias-float128.h new file mode 100644 index 0000000..6bb1cb1 --- /dev/null +++ b/sysdeps/generic/libm-alias-float128.h @@ -0,0 +1,36 @@ +/* Define aliases for libm _Float128 functions. + Copyright (C) 2017 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 + . */ + +#ifndef _LIBM_ALIAS_FLOAT128_H +#define _LIBM_ALIAS_FLOAT128_H + +/* Define aliases for a _Float128 libm function that has internal name + FROM ## f128 ## R and public names TO ## suffix ## R for each + suffix of a supported floating-point type with the same format as + _Float128. This should only be used for functions where such + public names exist for _FloatN types, not for + implementation-namespace exported names (where there is one name + per format, not per type) or for obsolescent functions not provided + for _FloatN types. */ +#define libm_alias_float128_r(from, to, r) \ + weak_alias (from ## f128 ## r, to ## f128 ## r) + +/* Likewise, but without the R suffix. */ +#define libm_alias_float128(from, to) libm_alias_float128_r (from, to, ) + +#endif diff --git a/sysdeps/generic/math-type-macros-float128.h b/sysdeps/generic/math-type-macros-float128.h index 5d734db..3e69c17 100644 --- a/sysdeps/generic/math-type-macros-float128.h +++ b/sysdeps/generic/math-type-macros-float128.h @@ -32,6 +32,11 @@ #define M_MLIT(c) c ## f128 +#include + +#ifndef declare_mgen_alias +# define declare_mgen_alias(from, to) libm_alias_float128 (from, to) +#endif /* Supply the generic macros. */ #include