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).
106 lines
3.0 KiB
C
106 lines
3.0 KiB
C
/* Macros for quiet not-a-number.
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Copyright (C) 2007-2025 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 _GL_NAN_H
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#define _GL_NAN_H
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/* IBM z/OS supports both hexadecimal and IEEE floating-point formats. The
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former does not support NaN and its isnan() implementation returns zero
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for all values. */
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#if defined __MVS__ && defined __IBMC__ && !defined __BFP__
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# error "NaN is not supported with IBM's hexadecimal floating-point format; please re-compile with -qfloat=ieee"
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* NaNf () returns a 'float' not-a-number. */
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/* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler choke
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on the expression 0.0 / 0.0. The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains. clang 13 on mips64 does incorrect constant-folding. */
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#if (defined __DECC || defined _MSC_VER \
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|| (defined __MVS__ && defined __IBMC__) \
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|| defined __PGI \
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|| defined __mips__)
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static float
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NaNf ()
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{
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static float volatile zero = 0.0f;
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return zero / zero;
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}
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#else
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# define NaNf() (0.0f / 0.0f)
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#endif
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/* NaNd () returns a 'double' not-a-number. */
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/* The Compaq (ex-DEC) C 6.4 compiler and the Microsoft MSVC 9 compiler choke
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on the expression 0.0 / 0.0. The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains. clang 13 on mips64 does incorrect constant-folding. */
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#if (defined __DECC || defined _MSC_VER \
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|| (defined __MVS__ && defined __IBMC__) \
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|| defined __PGI \
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|| defined __mips__)
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static double
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NaNd ()
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{
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static double volatile zero = 0.0;
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return zero / zero;
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}
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#else
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# define NaNd() (0.0 / 0.0)
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#endif
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/* NaNl () returns a 'long double' not-a-number. */
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/* On Irix 6.5, gcc 3.4.3 can't compute compile-time NaN, and needs the
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runtime type conversion.
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The Microsoft MSVC 9 compiler chokes on the expression 0.0L / 0.0L.
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The IBM XL C compiler on z/OS complains.
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PGI 16.10 complains.
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Avoid possible incorrect constant-folding on mips. */
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#ifdef __sgi
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static long double NaNl ()
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{
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double zero = 0.0;
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return zero / zero;
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}
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#elif (defined _MSC_VER \
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|| (defined __MVS__ && defined __IBMC__) \
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|| defined __PGI \
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|| defined __mips__)
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static long double
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NaNl ()
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{
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static long double volatile zero = 0.0L;
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return zero / zero;
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}
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#else
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# define NaNl() (0.0L / 0.0L)
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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 /* _GL_NAN_H */
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