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5b6d26e97b
Before this commit, glibc headers did the following mapping: * (zig) mipsel-linux-gnu => (glibc) mipsel-linux-gnu * (zig) mipsel-linux-gnu-soft => (glibc) (none) * (zig) mips-linux-gnu => (glibc) mips-linux-gnu * (zig) mips-linux-gnu-soft => (glibc) (none) While the glibc ABI stubs used the (zig) gnueabi and gnueabihf ABIs, and the stage2 available_libcs array listed: * (zig) mipsel-linux-gnu * (zig) mips-linux-gnu The problem is the mismatch between the ABI component of the headers and the stubs. This commit makes the following clarifications: * (zig) mips-linux-gnueabi means soft-float * (zig) mipsel-linux-gnueabi means soft-float * (zig) mips-linux-gnueabihf means hard-float * (zig) mipsel-linux-gnueabihf means hard-float Consequently, the glibc headers now do this mapping: * (zig) mips-linux-gnueabihf => (glibc) mips-linux-gnu * (zig) mipsel-linux-gnueabihf => (glibc) mipsel-linux-gnu * (zig) mips-linux-gnueabi => (glibc) mips-linux-gnu-soft * (zig) mipsel-linux-gnueabi => (glibc) mipsel-linux-gnu-soft The glibc ABI stubs are unchanged, and the stage2 available_libcs array's 2 entries are modified and it gains 2 more: * (zig) mipsel-linux-gnueabi * (zig) mipsel-linux-gnueabihf * (zig) mips-linux-gnueabi * (zig) mips-linux-gnueabihf Now everything is consistent. Zig no longer recognizes a `mips-linux-gnu` triple; one must use `mips-linux-gnueabi` (soft float) or `mips-linux-gnueabihf` (hard float).
97 lines
3.3 KiB
C
Vendored
97 lines
3.3 KiB
C
Vendored
/* Macros to control TS 18661-3 glibc features on MIPS platforms.
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Copyright (C) 2017-2021 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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<https://www.gnu.org/licenses/>. */
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#ifndef _BITS_FLOATN_H
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#define _BITS_FLOATN_H
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#include <features.h>
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#include <bits/long-double.h>
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/* Defined to 1 if the current compiler invocation provides a
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floating-point type with the IEEE 754 binary128 format, and this
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glibc includes corresponding *f128 interfaces for it. */
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#ifndef __NO_LONG_DOUBLE_MATH
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# define __HAVE_FLOAT128 1
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#else
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/* glibc does not support _Float128 for platforms where long double is
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normally binary128 when building with long double as binary64.
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GCC's default for supported scalar modes does not support it either
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in that case. */
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# define __HAVE_FLOAT128 0
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#endif
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/* Defined to 1 if __HAVE_FLOAT128 is 1 and the type is ABI-distinct
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from the default float, double and long double types in this glibc. */
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#define __HAVE_DISTINCT_FLOAT128 0
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/* Defined to 1 if the current compiler invocation provides a
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floating-point type with the right format for _Float64x, and this
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glibc includes corresponding *f64x interfaces for it. */
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#define __HAVE_FLOAT64X __HAVE_FLOAT128
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/* Defined to 1 if __HAVE_FLOAT64X is 1 and _Float64x has the format
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of long double. Otherwise, if __HAVE_FLOAT64X is 1, _Float64x has
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the format of _Float128, which must be different from that of long
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double. */
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#define __HAVE_FLOAT64X_LONG_DOUBLE __HAVE_FLOAT128
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#ifndef __ASSEMBLER__
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/* Defined to concatenate the literal suffix to be used with _Float128
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types, if __HAVE_FLOAT128 is 1. */
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# if __HAVE_FLOAT128
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# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
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/* The literal suffix f128 exists only since GCC 7.0. */
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# define __f128(x) x##l
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# else
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# define __f128(x) x##f128
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# endif
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# endif
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/* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1. */
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# if __HAVE_FLOAT128
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# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
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# define __CFLOAT128 _Complex long double
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# else
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# define __CFLOAT128 _Complex _Float128
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# endif
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# endif
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/* The remaining of this file provides support for older compilers. */
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# if __HAVE_FLOAT128
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/* The type _Float128 exists only since GCC 7.0. */
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# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
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typedef long double _Float128;
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# endif
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/* Various built-in functions do not exist before GCC 7.0. */
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# if !__GNUC_PREREQ (7, 0)
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# define __builtin_huge_valf128() (__builtin_huge_vall ())
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# define __builtin_inff128() (__builtin_infl ())
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# define __builtin_nanf128(x) (__builtin_nanl (x))
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# define __builtin_nansf128(x) (__builtin_nansl (x))
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# endif
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# endif
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#endif /* !__ASSEMBLER__. */
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#include <bits/floatn-common.h>
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#endif /* _BITS_FLOATN_H */ |