Many of these typedefs are the same across all architectures or can be set based on an architecture-independent compiler-provided macro (e.g. __SIZEOF_SIZE_T__). These macros have been available since GCC 4.6 and Clang sometime before 3.0 (godbolt.org does not have any older clang versions installed). I originally considered using the compiler-provided `__FOO_TYPE__` directly. However, in order to do so we have to check that those match the previous typedef exactly (not just that they have the same size) since any change would be an ABI break. For example, changing `long` to `long long` results in different C++ name mangling. Additionally, Clang and GCC disagree on the underlying type for some of (u)int*_fast_t types, so this change only moves the definitions that are identical across all architectures and does not touch those types. This de-deduplication will allow us to have a smaller diff downstream in CheriBSD: we only have to only change the (u)intptr_t definition in sys/_types.h in CheriBSD instead of having to change machine/_types.h for all CHERI-enabled architectures (currently RISC-V, AArch64 and MIPS). Reviewed By: imp, kib Differential Revision: https://reviews.freebsd.org/D29895
70 lines
2.7 KiB
C
70 lines
2.7 KiB
C
/*-
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* Copyright (c) 2002 Mike Barcroft <mike@FreeBSD.org>
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* From: @(#)ansi.h 8.2 (Berkeley) 1/4/94
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* From: @(#)types.h 8.3 (Berkeley) 1/5/94
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* $FreeBSD$
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*/
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#ifndef _MACHINE__TYPES_H_
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#define _MACHINE__TYPES_H_
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#ifndef _SYS__TYPES_H_
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#error do not include this header, use sys/_types.h
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#endif
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/*
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* Standard type definitions.
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*/
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typedef __int32_t __clock_t; /* clock()... */
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typedef __int64_t __critical_t;
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#ifndef _STANDALONE
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typedef double __double_t;
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typedef float __float_t;
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#endif
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typedef __int32_t __int_fast8_t;
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typedef __int32_t __int_fast16_t;
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typedef __int32_t __int_fast32_t;
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typedef __int64_t __int_fast64_t;
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typedef __int64_t __register_t;
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typedef __int64_t __segsz_t; /* segment size (in pages) */
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typedef __int64_t __time_t; /* time()... */
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typedef __uint32_t __uint_fast8_t;
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typedef __uint32_t __uint_fast16_t;
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typedef __uint32_t __uint_fast32_t;
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typedef __uint64_t __uint_fast64_t;
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typedef __uint64_t __u_register_t;
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typedef __uint64_t __vm_paddr_t;
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typedef unsigned int ___wchar_t;
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#define __WCHAR_MIN 0 /* min value for a wchar_t */
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#define __WCHAR_MAX __UINT_MAX /* max value for a wchar_t */
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#endif /* !_MACHINE__TYPES_H_ */
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