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TOMOYO Linux Cross Reference
Linux/arch/xtensa/include/asm/posix_types.h

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  1 /*
  2  * include/asm-xtensa/posix_types.h
  3  *
  4  * This file is subject to the terms and conditions of the GNU General Public
  5  * License.  See the file "COPYING" in the main directory of this archive
  6  * for more details.
  7  *
  8  * Largely copied from include/asm-ppc/posix_types.h
  9  *
 10  * Copyright (C) 2001 - 2005 Tensilica Inc.
 11  */
 12 
 13 #ifndef _XTENSA_POSIX_TYPES_H
 14 #define _XTENSA_POSIX_TYPES_H
 15 
 16 /*
 17  * This file is generally used by user-level software, so you need to
 18  * be a little careful about namespace pollution etc.  Also, we cannot
 19  * assume GCC is being used.
 20  */
 21 
 22 typedef unsigned long   __kernel_ino_t;
 23 typedef unsigned int    __kernel_mode_t;
 24 typedef unsigned long   __kernel_nlink_t;
 25 typedef long            __kernel_off_t;
 26 typedef int             __kernel_pid_t;
 27 typedef unsigned short  __kernel_ipc_pid_t;
 28 typedef unsigned int    __kernel_uid_t;
 29 typedef unsigned int    __kernel_gid_t;
 30 typedef unsigned int    __kernel_size_t;
 31 typedef int             __kernel_ssize_t;
 32 typedef long            __kernel_ptrdiff_t;
 33 typedef long            __kernel_time_t;
 34 typedef long            __kernel_suseconds_t;
 35 typedef long            __kernel_clock_t;
 36 typedef int             __kernel_timer_t;
 37 typedef int             __kernel_clockid_t;
 38 typedef int             __kernel_daddr_t;
 39 typedef char *          __kernel_caddr_t;
 40 typedef unsigned short  __kernel_uid16_t;
 41 typedef unsigned short  __kernel_gid16_t;
 42 typedef unsigned int    __kernel_uid32_t;
 43 typedef unsigned int    __kernel_gid32_t;
 44 
 45 typedef unsigned short  __kernel_old_uid_t;
 46 typedef unsigned short  __kernel_old_gid_t;
 47 typedef unsigned short  __kernel_old_dev_t;
 48 
 49 #ifdef __GNUC__
 50 typedef long long       __kernel_loff_t;
 51 #endif
 52 
 53 typedef struct {
 54         int     val[2];
 55 } __kernel_fsid_t;
 56 
 57 #ifndef __GNUC__
 58 
 59 #define __FD_SET(d, set)        ((set)->fds_bits[__FDELT(d)] |= __FDMASK(d))
 60 #define __FD_CLR(d, set)        ((set)->fds_bits[__FDELT(d)] &= ~__FDMASK(d))
 61 #define __FD_ISSET(d, set)      ((set)->fds_bits[__FDELT(d)] & __FDMASK(d))
 62 #define __FD_ZERO(set)  \
 63   ((void) memset ((void *) (set), 0, sizeof (__kernel_fd_set)))
 64 
 65 #else /* __GNUC__ */
 66 
 67 #if defined(__KERNEL__)
 68 /* With GNU C, use inline functions instead so args are evaluated only once: */
 69 
 70 #undef __FD_SET
 71 static __inline__ void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
 72 {
 73         unsigned long _tmp = fd / __NFDBITS;
 74         unsigned long _rem = fd % __NFDBITS;
 75         fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
 76 }
 77 
 78 #undef __FD_CLR
 79 static __inline__ void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
 80 {
 81         unsigned long _tmp = fd / __NFDBITS;
 82         unsigned long _rem = fd % __NFDBITS;
 83         fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
 84 }
 85 
 86 #undef __FD_ISSET
 87 static __inline__ int __FD_ISSET(unsigned long fd, __kernel_fd_set *p)
 88 {
 89         unsigned long _tmp = fd / __NFDBITS;
 90         unsigned long _rem = fd % __NFDBITS;
 91         return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
 92 }
 93 
 94 /*
 95  * This will unroll the loop for the normal constant case (8 ints,
 96  * for a 256-bit fd_set)
 97  */
 98 #undef __FD_ZERO
 99 static __inline__ void __FD_ZERO(__kernel_fd_set *p)
100 {
101         unsigned int *tmp = (unsigned int *)p->fds_bits;
102         int i;
103 
104         if (__builtin_constant_p(__FDSET_LONGS)) {
105                 switch (__FDSET_LONGS) {
106                         case 8:
107                                 tmp[0] = 0; tmp[1] = 0; tmp[2] = 0; tmp[3] = 0;
108                                 tmp[4] = 0; tmp[5] = 0; tmp[6] = 0; tmp[7] = 0;
109                                 return;
110                 }
111         }
112         i = __FDSET_LONGS;
113         while (i) {
114                 i--;
115                 *tmp = 0;
116                 tmp++;
117         }
118 }
119 
120 #endif /* defined(__KERNEL__) */
121 #endif /* __GNUC__ */
122 #endif /* _XTENSA_POSIX_TYPES_H */
123 

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