vasilito
068a1ca63e
Bootloader fork rebase:
- Base changed from 0.1.0 pre-patched archive to upstream 1.0.0 tag (c7eeb9f)
- Applied 0001-redbear-local-forks.patch (Cargo.toml crate path redirects)
- Applied fix-uefi-alloc-panic.patch equivalents (4 panic!() -> graceful
error handling in src/main.rs)
- Applied P5-live-preload-cap-1gib.patch (1 GiB cap on live image preload)
- Skipped: P0 GPT partition scan (requires new module + integration),
P1 timeout/default-resolution, P2 live preload guard (subsumed by
panic fixes + cap), P3 live image safe read, P4 large ISO boot,
redox.patch — to be applied in dedicated rebase session.
firmware-loader/Cargo.toml: version 0.1.0 -> 0.3.0 (sync with other
Red Bear custom crates which are at 0.3.0).
fork-upstream-map.toml: bootloader back from PENDING_REBASE to 1.0.0
since the partial rebase matches upstream 1.0.0 content.
fork-upstream-map.toml: base restored to 'main' tracked (was correctly
tracked by build-redbear.sh).
151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/* Macros for signalling not-a-number.
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Copyright (C) 2023-2025 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _SIGNED_SNAN_H
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#define _SIGNED_SNAN_H
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#include "signed-nan.h"
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#include "snan.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if HAVE_SNANF
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/* Returns a signalling 'float' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_float
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memory_positive_SNaNf ()
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{
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return construct_memory_SNaNf (positive_NaNf ());
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}
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/* Returns a signalling 'float' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_float
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memory_negative_SNaNf ()
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{
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return construct_memory_SNaNf (negative_NaNf ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", the following functions may return a quiet NaN
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instead. Use the functions with 'memory_' prefix if you need to avoid this.
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See <https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'float' NaN with sign bit == 0. */
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_GL_UNUSED static float
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positive_SNaNf ()
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{
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return memory_positive_SNaNf ().value;
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}
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/* Returns a signalling 'float' NaN with sign bit == 1. */
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_GL_UNUSED static float
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negative_SNaNf ()
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{
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return memory_negative_SNaNf ().value;
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}
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#endif
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#if HAVE_SNAND
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/* Returns a signalling 'double' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_double
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memory_positive_SNaNd ()
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{
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return construct_memory_SNaNd (positive_NaNd ());
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}
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/* Returns a signalling 'double' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_double
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memory_negative_SNaNd ()
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{
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return construct_memory_SNaNd (negative_NaNd ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", the following functions may return a quiet NaN
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instead. Use the functions with 'memory_' prefix if you need to avoid this.
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See <https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'double' NaN with sign bit == 0. */
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_GL_UNUSED static double
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positive_SNaNd ()
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{
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return memory_positive_SNaNd ().value;
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}
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/* Returns a signalling 'double' NaN with sign bit == 1. */
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_GL_UNUSED static double
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negative_SNaNd ()
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{
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return memory_negative_SNaNd ().value;
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}
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#endif
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#if HAVE_SNANL
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/* Returns a signalling 'long double' NaN with sign bit == 0 in memory. */
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_GL_UNUSED static memory_long_double
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memory_positive_SNaNl ()
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{
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return construct_memory_SNaNl (positive_NaNl ());
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}
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/* Returns a signalling 'long double' NaN with sign bit == 1 in memory. */
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_GL_UNUSED static memory_long_double
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memory_negative_SNaNl ()
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{
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return construct_memory_SNaNl (negative_NaNl ());
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}
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/* Note: On 32-bit x86 processors, as well as on x86_64 processors with
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CC="gcc -mfpmath=387", if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE is 1, the
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following functions may return a quiet NaN instead. Use the functions
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with 'memory_' prefix if you need to avoid this. See
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<https://lists.gnu.org/archive/html/bug-gnulib/2023-10/msg00060.html>
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for details. */
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/* Returns a signalling 'long double' NaN with sign bit == 0. */
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_GL_UNUSED static long double
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positive_SNaNl ()
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{
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return memory_positive_SNaNl ().value;
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}
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/* Returns a signalling 'long double' NaN with sign bit == 1. */
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_GL_UNUSED static long double
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negative_SNaNl ()
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{
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return memory_negative_SNaNl ().value;
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}
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SIGNED_SNAN_H */
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