From 209ae17c60a905f2b6e951d6609a898f4b9891f6 Mon Sep 17 00:00:00 2001 From: Tulio Magno Quites Machado Filho Date: Wed, 20 Jun 2018 18:35:35 -0300 Subject: ldbl-128ibm-compat: Create libm-alias-float128.h Add a new libm-alias-float128.h in order to provide the __*ieee128 aliases for the existing *f128 that do not have a globally exported symbol. * sysdeps/ieee754/ldbl-128ibm-compat/Versions: New file. * sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h: New file. --- .../ldbl-128ibm-compat/libm-alias-float128.h | 64 ++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h (limited to 'sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h') diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h b/sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h new file mode 100644 index 0000000000..a21dfcaea5 --- /dev/null +++ b/sysdeps/ieee754/ldbl-128ibm-compat/libm-alias-float128.h @@ -0,0 +1,64 @@ +/* Define aliases for libm _Float128 functions. + Copyright (C) 2018 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 + +#include +#include + +/* This macro should be used on all long double functions that are not part of + the _Float128 API in order to provide *ieee128 symbols without exposing + internal *f128 symbols. */ +#define libm_alias_float128_other_r_ldbl(from, to, r) \ + strong_alias (from ## f128 ## r, __ ## to ## ieee128 ## r) + +/* Define _FloatN / _FloatNx aliases (other than that for _Float128) + for a _Float128 libm function that has internal name FROM ## f128 + ## R and public names TO ## suffix ## R for each suffix of a + supported _FloatN / _FloatNx floating-point type with the same + format as _Float128. */ +#if __HAVE_FLOAT64X && !__HAVE_FLOAT64X_LONG_DOUBLE +# define libm_alias_float128_other_r(from, to, r) \ + weak_alias (from ## f128 ## r, to ## f64x ## r); \ + libm_alias_float128_other_r_ldbl(from, to, r) +#else +# define libm_alias_float128_other_r(from, to, r) \ + libm_alias_float128_other_r_ldbl(from, to, r) +#endif + +/* Likewise, but without the R suffix. */ +#define libm_alias_float128_other(from, to) \ + libm_alias_float128_other_r (from, to, ) + +/* 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); \ + libm_alias_float128_other_r (from, to, r) + +/* Likewise, but without the R suffix. */ +#define libm_alias_float128(from, to) libm_alias_float128_r (from, to, ) + +#endif -- cgit 1.4.1