c6bfe5c4d7
I've moved the ARM port from ports to the main sysdeps hierarchy. Beyond the README update, the move of the files was simply git mv ports/sysdeps/arm sysdeps/arm git mv ports/sysdeps/unix/arm sysdeps/unix/arm git mv ports/sysdeps/unix/sysv/linux/arm sysdeps/unix/sysv/linux/arm and in addition to the ChangeLog entries here, I put a note at the top of ports/ChangeLog.arm similar to that at the top of ChangeLog.powerpc. There is deliberately no NEWS change, as I think it makes the most sense to put in a general note above all ports having moved if we can achieve that for 2.20. Tested that disassembly of installed shared libraries for arm is the same before and after this patch, except for data (not instructions) in ld.so (there are assertions in sysdeps/arm/dl-machine.h, and the path by which that file is found, and so by which it appears in the assertion message, changes as a result of the move). * sysdeps/arm: Move directory from ports/sysdeps/arm. * sysdeps/unix/arm: Move directory from ports/sysdeps/unix/arm. * sysdeps/unix/sysv/linux/arm: Move directory from ports/sysdeps/unix/sysv/linux/arm. * README: Update listing for arm-*-linux-gnueabi. ports/ChangeLog.arm: * sysdeps/arm: Move directory to ../sysdeps/arm. * sysdeps/unix/arm: Move directory to ../sysdeps.arm. * sysdeps/unix/sysv/linux/arm: Move directory to ../sysdeps/unix/sysv/linux/arm.
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/* Copyright (C) 2004-2014 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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<http://www.gnu.org/licenses/>. */
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#ifndef _FENV_H
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# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
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#endif
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/* Define bits representing exceptions in the FPU status word. */
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enum
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{
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FE_INVALID =
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#define FE_INVALID 1
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FE_INVALID,
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FE_DIVBYZERO =
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#define FE_DIVBYZERO 2
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FE_DIVBYZERO,
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FE_OVERFLOW =
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#define FE_OVERFLOW 4
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FE_OVERFLOW,
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FE_UNDERFLOW =
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#define FE_UNDERFLOW 8
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FE_UNDERFLOW,
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FE_INEXACT =
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#define FE_INEXACT 16
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FE_INEXACT,
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};
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/* Amount to shift by to convert an exception to a mask bit. */
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#define FE_EXCEPT_SHIFT 8
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/* All supported exceptions. */
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#define FE_ALL_EXCEPT \
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(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
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/* VFP supports all of the four defined rounding modes. */
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enum
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{
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FE_TONEAREST =
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#define FE_TONEAREST 0
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FE_TONEAREST,
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FE_UPWARD =
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#define FE_UPWARD 0x400000
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FE_UPWARD,
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FE_DOWNWARD =
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#define FE_DOWNWARD 0x800000
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FE_DOWNWARD,
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FE_TOWARDZERO =
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#define FE_TOWARDZERO 0xc00000
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FE_TOWARDZERO
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};
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/* Type representing exception flags. */
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typedef unsigned int fexcept_t;
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/* Type representing floating-point environment. */
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typedef struct
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{
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unsigned int __cw;
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}
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fenv_t;
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/* If the default argument is used we use this value. */
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#define FE_DFL_ENV ((const fenv_t *) -1l)
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#ifdef __USE_GNU
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/* Floating-point environment where none of the exceptions are masked. */
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# define FE_NOMASK_ENV ((const fenv_t *) -2)
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#endif
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