802cb57e34
When copying big structures, LLVM generates calls to memmove(), because it may not be able to figure out whether structures overlap. This caused linker errors to occur. memmove() is now implemented using bcopy(). Ideally it would be the other way around, but that can be solved in the future. On ARM we don't do add anything, because it already has memmove(). Discussed on: arch@ Reviewed by: rdivacky
178 lines
3.3 KiB
C
178 lines
3.3 KiB
C
#ifndef __XFS_COMPAT_H__
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#define __XFS_COMPAT_H__
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#include <sys/param.h>
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#include <sys/libkern.h>
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#include <sys/limits.h>
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#include <sys/uuid.h>
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#include <sys/conf.h>
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#include <sys/sbuf.h>
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#include <sys/stat.h>
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#include <sys/ioccom.h>
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#include <sys/fcntl.h>
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#include <sys/dirent.h>
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#include <sys/ktr.h>
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#include <sys/kdb.h>
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#ifdef _KERNEL
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#define __KERNEL__
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#endif
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#define printk printf
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#define MAJOR(x) major(x)
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#define MINOR(x) minor(x)
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/*
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* SYSV compatibility types missing in FreeBSD.
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*/
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typedef unsigned long ulong;
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typedef unsigned int uint;
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typedef unsigned short ushort;
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/*
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* Additional type declarations for XFS.
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*/
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typedef signed char __s8;
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typedef unsigned char __u8;
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typedef signed short int __s16;
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typedef unsigned short int __u16;
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typedef signed int __s32;
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typedef unsigned int __u32;
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typedef signed long long int __s64;
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typedef unsigned long long int __u64;
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/* linus now has sparse which expects big endian or little endian */
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typedef __u16 __be16;
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typedef __u32 __be32;
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typedef __u64 __be64;
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/*
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* Linux types with direct FreeBSD conterparts
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*/
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typedef off_t loff_t;
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typedef struct timespec timespec_t;
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typedef struct uuid uuid_t;
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typedef struct fid fid_t;
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typedef dev_t os_dev_t;
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/*
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* Linux block devices are device vnodes in FreeBSD.
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*/
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#define block_device vnode
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/*
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* Get the current CPU ID.
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*/
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#define smp_processor_id() PCPU_GET(cpuid)
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/*
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* FreeBSD does not have BITS_PER_LONG defined.
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*/
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#if defined(LONG_BIT)
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#define BITS_PER_LONG LONG_BIT
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#elif defined(__i386__)
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#define BITS_PER_LONG 32
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#endif
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#define rol32(x, y) (((x)<<(y))|((x)>>(32-(y))))
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/*
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* boolean_t is enum on Linux, int on FreeBSD.
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* Provide value defines.
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*/
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#define B_FALSE 0
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#define B_TRUE 1
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/*
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* GCC 3.x static branch prediction hints
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*/
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#if __GNUC__ < 3
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#define __builtin_expect(x, expected_value) (x)
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#endif
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#ifndef likely
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#define likely(x) __builtin_expect((x), 1)
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#endif
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#ifndef unlikely
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#define unlikely(x) __builtin_expect((x), 0)
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#endif
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/*
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* ANSI and GCC extension keywords compatibity
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*/
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#ifndef inline
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#define inline __inline__
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#endif
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#ifndef asm
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#define asm __asm
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#endif
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#ifndef typeof
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#define typeof __typeof
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#endif
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/*
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* Miscellaneous limit constants
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*/
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#define MAX_LFS_FILESIZE 0x7fffffffffffffffLL
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/*
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* Map simple functions to their FreeBSD kernel equivalents
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*/
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#ifndef copy_to_user
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#define copy_to_user(dst, src, len) copyout((src), (dst), (len))
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#endif
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#ifndef copy_from_user
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#define copy_from_user(dst, src, len) copyin((src), (dst), (len))
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#endif
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#ifndef barrier
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#define barrier() __asm__ __volatile__("": : :"memory")
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#endif
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/*
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* Map simple global vairables to FreeBSD kernel equivalents
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*/
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#if !defined(xfs_physmem)
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#define xfs_physmem physmem
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#endif
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#ifndef HZ
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#define HZ hz
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#endif
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/*
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* These should be implemented properly for all architectures
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* we want to support.
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*/
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#define get_unaligned(ptr) (*(ptr))
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#define put_unaligned(val, ptr) ((void)( *(ptr) = (val) ))
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/*
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* Linux type-safe min/max macros.
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*/
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#define min_t(type,x,y) MIN((x),(y))
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#define max_t(type,x,y) MAX((x),(y))
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typedef struct mtx xfs_mutex_t;
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/*
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* Cedentials manipulation.
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*/
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#define current_fsuid(credp) (credp)->cr_uid
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#define current_fsgid(credp) (credp)->cr_groups[0]
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#define PAGE_CACHE_SIZE PAGE_SIZE
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#define IS_ERR(err) (err)
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static inline unsigned long ffz(unsigned long val)
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{
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return ffsl(~val);
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}
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#endif /* __XFS_COMPAT_H__ */
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