freebsd: simplify MD isa_defs.h
Most of this file was a pile of defines, apparently from Solaris that controlled nothing in the source tree. A few things controlled the definition of unused types or macros which I have removed. Considerable further cleanup is possible including removal of architectures FreeBSD never supported. This file should likely converge with the Linux version to the extent possible. Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Brooks Davis <brooks.davis@sri.com> Closes #14127
This commit is contained in:
Brooks Davis
Brian Behlendorf
parent
e3ba8eb12e
commit
ecbf02791f
@ -41,59 +41,6 @@
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* The natural byte order of the processor. A pointer to an int points
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* to the least/most significant byte of that int.
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*
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* _STACK_GROWS_UPWARD / _STACK_GROWS_DOWNWARD:
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* The processor specific direction of stack growth. A push onto the
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* stack increases/decreases the stack pointer, so it stores data at
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* successively higher/lower addresses. (Stackless machines ignored
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* without regrets).
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*
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* _LONG_LONG_HTOL / _LONG_LONG_LTOH:
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* A pointer to a long long points to the most/least significant long
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* within that long long.
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*
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* _BIT_FIELDS_HTOL / _BIT_FIELDS_LTOH:
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* The C compiler assigns bit fields from the high/low to the low/high end
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* of an int (most to least significant vs. least to most significant).
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*
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* _IEEE_754:
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* The processor (or supported implementations of the processor)
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* supports the ieee-754 floating point standard. No other floating
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* point standards are supported (or significant). Any other supported
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* floating point formats are expected to be cased on the ISA processor
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* symbol.
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*
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* _CHAR_IS_UNSIGNED / _CHAR_IS_SIGNED:
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* The C Compiler implements objects of type `char' as `unsigned' or
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* `signed' respectively. This is really an implementation choice of
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* the compiler writer, but it is specified in the ABI and tends to
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* be uniform across compilers for an instruction set architecture.
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* Hence, it has the properties of a processor characteristic.
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*
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* _CHAR_ALIGNMENT / _SHORT_ALIGNMENT / _INT_ALIGNMENT / _LONG_ALIGNMENT /
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* _LONG_LONG_ALIGNMENT / _DOUBLE_ALIGNMENT / _LONG_DOUBLE_ALIGNMENT /
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* _POINTER_ALIGNMENT / _FLOAT_ALIGNMENT:
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* The ABI defines alignment requirements of each of the primitive
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* object types. Some, if not all, may be hardware requirements as
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* well. The values are expressed in "byte-alignment" units.
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*
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* _MAX_ALIGNMENT:
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* The most stringent alignment requirement as specified by the ABI.
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* Equal to the maximum of all the above _XXX_ALIGNMENT values.
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*
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* _ALIGNMENT_REQUIRED:
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* True or false (1 or 0) whether or not the hardware requires the ABI
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* alignment.
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*
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* _LONG_LONG_ALIGNMENT_32
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* The 32-bit ABI supported by a 64-bit kernel may have different
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* alignment requirements for primitive object types. The value of this
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* identifier is expressed in "byte-alignment" units.
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*
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* _HAVE_CPUID_INSN
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* This indicates that the architecture supports the 'cpuid'
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* instruction as defined by Intel. (Intel allows other vendors
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* to extend the instruction for their own purposes.)
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*
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*
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* Implementation Choices:
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*
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@ -112,10 +59,6 @@
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* Long/Pointer are 64 bits, Int is 32 bits. This is the chosen
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* implementation for 64-bit ABIs such as SPARC V9.
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*
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* _I32LPx:
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* A compilation environment where 'int' is 32-bit, and
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* longs and pointers are simply the same size.
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*
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* In all cases, Char is 8 bits and Short is 16 bits.
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*
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* _SUNOS_VTOC_8 / _SUNOS_VTOC_16 / _SVR4_VTOC_16:
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@ -141,78 +84,10 @@
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* 16 partitions per disk.
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*
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*
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* _DMA_USES_PHYSADDR / _DMA_USES_VIRTADDR
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* This describes the type of addresses used by system DMA:
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*
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* _DMA_USES_PHYSADDR:
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* This type of DMA, used in the x86 implementation,
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* requires physical addresses for DMA buffers. The 24-bit
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* addresses used by some legacy boards is the source of the
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* "low-memory" (<16MB) requirement for some devices using DMA.
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*
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* _DMA_USES_VIRTADDR:
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* This method of DMA allows the use of virtual addresses for
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* DMA transfers.
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*
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* _FIRMWARE_NEEDS_FDISK / _NO_FDISK_PRESENT
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* This indicates the presence/absence of an fdisk table.
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*
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* _FIRMWARE_NEEDS_FDISK
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* The fdisk table is required by system firmware. If present,
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* it allows a disk to be subdivided into multiple fdisk
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* partitions, each of which is equivalent to a separate,
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* virtual disk. This enables the co-existence of multiple
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* operating systems on a shared hard disk.
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*
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* _NO_FDISK_PRESENT
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* If the fdisk table is absent, it is assumed that the entire
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* media is allocated for a single operating system.
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*
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* _HAVE_TEM_FIRMWARE
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* Defined if this architecture has the (fallback) option of
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* using prom_* calls for doing I/O if a suitable kernel driver
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* is not available to do it.
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*
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* _DONT_USE_1275_GENERIC_NAMES
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* Controls whether or not device tree node names should
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* comply with the IEEE 1275 "Generic Names" Recommended
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* Practice. With _DONT_USE_GENERIC_NAMES, device-specific
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* names identifying the particular device will be used.
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*
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* __i386_COMPAT
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* This indicates whether the i386 ABI is supported as a *non-native*
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* mode for the platform. When this symbol is defined:
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* - 32-bit xstat-style system calls are enabled
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* - 32-bit xmknod-style system calls are enabled
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* - 32-bit system calls use i386 sizes -and- alignments
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*
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* Note that this is NOT defined for the i386 native environment!
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*
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* __x86
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* This is ONLY a synonym for defined(__i386) || defined(__amd64)
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* which is useful only insofar as these two architectures share
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* common attributes. Analogous to __sparc.
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*
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* _PSM_MODULES
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* This indicates whether or not the implementation uses PSM
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* modules for processor support, reading /etc/mach from inside
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* the kernel to extract a list.
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*
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* _RTC_CONFIG
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* This indicates whether or not the implementation uses /etc/rtc_config
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* to configure the real-time clock in the kernel.
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*
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* _UNIX_KRTLD
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* This indicates that the implementation uses a dynamically
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* linked unix + krtld to form the core kernel image at boot
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* time, or (in the absence of this symbol) a prelinked kernel image.
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*
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* _OBP
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* This indicates the firmware interface is OBP.
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*
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* _SOFT_HOSTID
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* This indicates that the implementation obtains the hostid
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* from the file /etc/hostid, rather than from hardware.
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*/
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#ifdef __cplusplus
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@ -233,54 +108,13 @@ extern "C" {
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#define __x86
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#endif
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_SIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#define _LONG_ALIGNMENT 8
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#define _LONG_LONG_ALIGNMENT 8
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#define _DOUBLE_ALIGNMENT 8
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#define _DOUBLE_COMPLEX_ALIGNMENT 8
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#define _LONG_DOUBLE_ALIGNMENT 16
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
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#define _POINTER_ALIGNMENT 8
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#define _MAX_ALIGNMENT 16
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#define _ALIGNMENT_REQUIRED 1
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/*
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* Different alignment constraints for the i386 ABI in compatibility mode
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*/
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#define _LONG_LONG_ALIGNMENT_32 4
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/*
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* Define the appropriate "implementation choices".
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*/
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#if !defined(_LP64)
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#error "_LP64 not defined"
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#endif
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#if !defined(_I32LPx)
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#define _I32LPx
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#endif
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#define _MULTI_DATAMODEL
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define __i386_COMPAT
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _SOFT_HOSTID
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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/*
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* The feature test macro __i386 is generic for all processors implementing
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@ -297,78 +131,16 @@ extern "C" {
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#define __x86
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#endif
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_SIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#define _LONG_ALIGNMENT 4
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#define _LONG_LONG_ALIGNMENT 4
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#define _DOUBLE_ALIGNMENT 4
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#define _DOUBLE_COMPLEX_ALIGNMENT 4
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#define _LONG_DOUBLE_ALIGNMENT 4
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
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#define _POINTER_ALIGNMENT 4
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#define _MAX_ALIGNMENT 4
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#define _ALIGNMENT_REQUIRED 0
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#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
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/*
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* Define the appropriate "implementation choices".
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*/
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#if !defined(_ILP32)
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#define _ILP32
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#endif
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#if !defined(_I32LPx)
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#define _I32LPx
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#endif
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _SOFT_HOSTID
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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#elif defined(__aarch64__)
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_UNSIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#define _LONG_ALIGNMENT 8
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#define _LONG_LONG_ALIGNMENT 8
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#define _DOUBLE_ALIGNMENT 8
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#define _DOUBLE_COMPLEX_ALIGNMENT 8
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#define _LONG_DOUBLE_ALIGNMENT 16
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
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#define _POINTER_ALIGNMENT 8
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#define _MAX_ALIGNMENT 16
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#define _ALIGNMENT_REQUIRED 1
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#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
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/*
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* Define the appropriate "implementation choices"
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*/
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@ -376,41 +148,9 @@ extern "C" {
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#error "_LP64 not defined"
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#endif
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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#elif defined(__riscv)
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_UNSIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#define _LONG_ALIGNMENT 8
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#define _LONG_LONG_ALIGNMENT 8
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#define _DOUBLE_ALIGNMENT 8
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#define _DOUBLE_COMPLEX_ALIGNMENT 8
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#define _LONG_DOUBLE_ALIGNMENT 16
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
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#define _POINTER_ALIGNMENT 8
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#define _MAX_ALIGNMENT 16
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#define _ALIGNMENT_REQUIRED 1
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#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
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/*
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* Define the appropriate "implementation choices"
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*/
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@ -418,86 +158,20 @@ extern "C" {
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#define _LP64
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#endif
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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#elif defined(__arm__)
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_SIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#define _LONG_ALIGNMENT 4
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#define _LONG_LONG_ALIGNMENT 4
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#define _DOUBLE_ALIGNMENT 4
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#define _DOUBLE_COMPLEX_ALIGNMENT 4
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#define _LONG_DOUBLE_ALIGNMENT 4
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
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#define _POINTER_ALIGNMENT 4
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#define _MAX_ALIGNMENT 4
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#define _ALIGNMENT_REQUIRED 0
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#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
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/*
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* Define the appropriate "implementation choices".
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*/
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#if !defined(_ILP32)
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#define _ILP32
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#endif
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#if !defined(_I32LPx)
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#define _I32LPx
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#endif
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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#elif defined(__mips__)
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/*
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* Define the appropriate "processor characteristics"
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*/
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#define _STACK_GROWS_DOWNWARD
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#define _LONG_LONG_LTOH
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#define _BIT_FIELDS_LTOH
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#define _IEEE_754
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#define _CHAR_IS_SIGNED
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#define _BOOL_ALIGNMENT 1
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#define _CHAR_ALIGNMENT 1
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#define _SHORT_ALIGNMENT 2
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#define _INT_ALIGNMENT 4
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#define _FLOAT_ALIGNMENT 4
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#define _FLOAT_COMPLEX_ALIGNMENT 4
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#if defined(__mips_n64)
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#define _LONG_ALIGNMENT 8
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#define _LONG_LONG_ALIGNMENT 8
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#define _DOUBLE_ALIGNMENT 8
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#define _DOUBLE_COMPLEX_ALIGNMENT 8
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#define _LONG_DOUBLE_ALIGNMENT 8
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 8
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#define _POINTER_ALIGNMENT 8
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#define _MAX_ALIGNMENT 8
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#define _ALIGNMENT_REQUIRED 0
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#define _LONG_LONG_ALIGNMENT_32 _INT_ALIGNMENT
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/*
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* Define the appropriate "implementation choices".
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*/
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@ -505,57 +179,21 @@ extern "C" {
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#error "_LP64 not defined"
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#endif
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#else
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#define _LONG_ALIGNMENT 4
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#define _LONG_LONG_ALIGNMENT 4
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#define _DOUBLE_ALIGNMENT 4
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#define _DOUBLE_COMPLEX_ALIGNMENT 4
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#define _LONG_DOUBLE_ALIGNMENT 4
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#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 4
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#define _POINTER_ALIGNMENT 4
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#define _MAX_ALIGNMENT 4
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#define _ALIGNMENT_REQUIRED 0
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#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
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/*
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* Define the appropriate "implementation choices".
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*/
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#if !defined(_ILP32)
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#define _ILP32
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#endif
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#if !defined(_I32LPx)
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#define _I32LPx
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#endif
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#endif
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#define _SUNOS_VTOC_16
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#define _DMA_USES_PHYSADDR
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#define _FIRMWARE_NEEDS_FDISK
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#define _PSM_MODULES
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#define _RTC_CONFIG
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#define _DONT_USE_1275_GENERIC_NAMES
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#define _HAVE_CPUID_INSN
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#elif defined(__powerpc__)
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#if defined(__BIG_ENDIAN__)
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#define _BIT_FIELDS_HTOL
|
||||
#else
|
||||
#define _BIT_FIELDS_LTOH
|
||||
#endif
|
||||
|
||||
#if !defined(__powerpc)
|
||||
#define __powerpc
|
||||
#endif
|
||||
|
||||
#if defined(__powerpc64__)
|
||||
#define _LONG_LONG_ALIGNMENT 8
|
||||
#define _MULTI_DATAMODEL
|
||||
#else
|
||||
#define _LONG_LONG_ALIGNMENT 4
|
||||
#endif
|
||||
#define _LONG_LONG_ALIGNMENT_32 4
|
||||
#define _ALIGNMENT_REQUIRED 1
|
||||
|
||||
#define _SUNOS_VTOC_16 1
|
||||
|
||||
/*
|
||||
@ -600,34 +238,10 @@ extern "C" {
|
||||
#define __sparcv8
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Define the appropriate "processor characteristics" shared between
|
||||
* all Solaris on SPARC systems.
|
||||
*/
|
||||
#define _STACK_GROWS_DOWNWARD
|
||||
#define _LONG_LONG_HTOL
|
||||
#define _BIT_FIELDS_HTOL
|
||||
#define _IEEE_754
|
||||
#define _CHAR_IS_SIGNED
|
||||
#define _BOOL_ALIGNMENT 1
|
||||
#define _CHAR_ALIGNMENT 1
|
||||
#define _SHORT_ALIGNMENT 2
|
||||
#define _INT_ALIGNMENT 4
|
||||
#define _FLOAT_ALIGNMENT 4
|
||||
#define _FLOAT_COMPLEX_ALIGNMENT 4
|
||||
#define _LONG_LONG_ALIGNMENT 8
|
||||
#define _DOUBLE_ALIGNMENT 8
|
||||
#define _DOUBLE_COMPLEX_ALIGNMENT 8
|
||||
#define _ALIGNMENT_REQUIRED 1
|
||||
|
||||
/*
|
||||
* Define the appropriate "implementation choices" shared between versions.
|
||||
*/
|
||||
#define _SUNOS_VTOC_8
|
||||
#define _DMA_USES_VIRTADDR
|
||||
#define _NO_FDISK_PRESENT
|
||||
#define _HAVE_TEM_FIRMWARE
|
||||
#define _OBP
|
||||
|
||||
/*
|
||||
* The following set of definitions characterize the implementation of
|
||||
@ -635,24 +249,10 @@ extern "C" {
|
||||
*/
|
||||
#if defined(__sparcv8)
|
||||
|
||||
/*
|
||||
* Define the appropriate "processor characteristics"
|
||||
*/
|
||||
#define _LONG_ALIGNMENT 4
|
||||
#define _LONG_DOUBLE_ALIGNMENT 8
|
||||
#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 8
|
||||
#define _POINTER_ALIGNMENT 4
|
||||
#define _MAX_ALIGNMENT 8
|
||||
|
||||
#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
|
||||
|
||||
/*
|
||||
* Define the appropriate "implementation choices"
|
||||
*/
|
||||
#define _ILP32
|
||||
#if !defined(_I32LPx)
|
||||
#define _I32LPx
|
||||
#endif
|
||||
|
||||
/*
|
||||
* The following set of definitions characterize the implementation of
|
||||
@ -660,27 +260,12 @@ extern "C" {
|
||||
*/
|
||||
#elif defined(__sparcv9)
|
||||
|
||||
/*
|
||||
* Define the appropriate "processor characteristics"
|
||||
*/
|
||||
#define _LONG_ALIGNMENT 8
|
||||
#define _LONG_DOUBLE_ALIGNMENT 16
|
||||
#define _LONG_DOUBLE_COMPLEX_ALIGNMENT 16
|
||||
#define _POINTER_ALIGNMENT 8
|
||||
#define _MAX_ALIGNMENT 16
|
||||
|
||||
#define _LONG_LONG_ALIGNMENT_32 _LONG_LONG_ALIGNMENT
|
||||
|
||||
/*
|
||||
* Define the appropriate "implementation choices"
|
||||
*/
|
||||
#if !defined(_LP64)
|
||||
#error "_LP64 not defined"
|
||||
#endif
|
||||
#if !defined(_I32LPx)
|
||||
#define _I32LPx
|
||||
#endif
|
||||
#define _MULTI_DATAMODEL
|
||||
|
||||
#else
|
||||
#error "unknown SPARC version"
|
||||
|
||||
@ -281,46 +281,6 @@ extern unsigned char bcd_to_byte[256];
|
||||
#define INCR_COUNT(var, mutex) mutex_enter(mutex), (*(var))++, mutex_exit(mutex)
|
||||
#define DECR_COUNT(var, mutex) mutex_enter(mutex), (*(var))--, mutex_exit(mutex)
|
||||
|
||||
/*
|
||||
* Macros to declare bitfields - the order in the parameter list is
|
||||
* Low to High - that is, declare bit 0 first. We only support 8-bit bitfields
|
||||
* because if a field crosses a byte boundary it's not likely to be meaningful
|
||||
* without reassembly in its nonnative endianness.
|
||||
*/
|
||||
#if defined(_BIT_FIELDS_LTOH)
|
||||
#define DECL_BITFIELD2(_a, _b) \
|
||||
uint8_t _a, _b
|
||||
#define DECL_BITFIELD3(_a, _b, _c) \
|
||||
uint8_t _a, _b, _c
|
||||
#define DECL_BITFIELD4(_a, _b, _c, _d) \
|
||||
uint8_t _a, _b, _c, _d
|
||||
#define DECL_BITFIELD5(_a, _b, _c, _d, _e) \
|
||||
uint8_t _a, _b, _c, _d, _e
|
||||
#define DECL_BITFIELD6(_a, _b, _c, _d, _e, _f) \
|
||||
uint8_t _a, _b, _c, _d, _e, _f
|
||||
#define DECL_BITFIELD7(_a, _b, _c, _d, _e, _f, _g) \
|
||||
uint8_t _a, _b, _c, _d, _e, _f, _g
|
||||
#define DECL_BITFIELD8(_a, _b, _c, _d, _e, _f, _g, _h) \
|
||||
uint8_t _a, _b, _c, _d, _e, _f, _g, _h
|
||||
#elif defined(_BIT_FIELDS_HTOL)
|
||||
#define DECL_BITFIELD2(_a, _b) \
|
||||
uint8_t _b, _a
|
||||
#define DECL_BITFIELD3(_a, _b, _c) \
|
||||
uint8_t _c, _b, _a
|
||||
#define DECL_BITFIELD4(_a, _b, _c, _d) \
|
||||
uint8_t _d, _c, _b, _a
|
||||
#define DECL_BITFIELD5(_a, _b, _c, _d, _e) \
|
||||
uint8_t _e, _d, _c, _b, _a
|
||||
#define DECL_BITFIELD6(_a, _b, _c, _d, _e, _f) \
|
||||
uint8_t _f, _e, _d, _c, _b, _a
|
||||
#define DECL_BITFIELD7(_a, _b, _c, _d, _e, _f, _g) \
|
||||
uint8_t _g, _f, _e, _d, _c, _b, _a
|
||||
#define DECL_BITFIELD8(_a, _b, _c, _d, _e, _f, _g, _h) \
|
||||
uint8_t _h, _g, _f, _e, _d, _c, _b, _a
|
||||
#else
|
||||
#error One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined
|
||||
#endif /* _BIT_FIELDS_LTOH */
|
||||
|
||||
#if !defined(_KMEMUSER) && !defined(offsetof)
|
||||
|
||||
/* avoid any possibility of clashing with <stddef.h> version */
|
||||
|
||||
@ -47,31 +47,6 @@
|
||||
typedef uint_t zoneid_t;
|
||||
typedef int projid_t;
|
||||
|
||||
/*
|
||||
* Definitions remaining from previous partial support for 64-bit file
|
||||
* offsets. This partial support for devices greater than 2gb requires
|
||||
* compiler support for long long.
|
||||
*/
|
||||
#ifdef _LONG_LONG_LTOH
|
||||
typedef union {
|
||||
offset_t _f; /* Full 64 bit offset value */
|
||||
struct {
|
||||
int32_t _l; /* lower 32 bits of offset value */
|
||||
int32_t _u; /* upper 32 bits of offset value */
|
||||
} _p;
|
||||
} lloff_t;
|
||||
#endif
|
||||
|
||||
#ifdef _LONG_LONG_HTOL
|
||||
typedef union {
|
||||
offset_t _f; /* Full 64 bit offset value */
|
||||
struct {
|
||||
int32_t _u; /* upper 32 bits of offset value */
|
||||
int32_t _l; /* lower 32 bits of offset value */
|
||||
} _p;
|
||||
} lloff_t;
|
||||
#endif
|
||||
|
||||
#include <sys/param.h> /* for NBBY */
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user