1 /* 2 * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> 3 * 4 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. 5 */ 6 7 #ifndef _SYS_STATFS_H 8 # error "Never include <bits/statfs.h> directly; use <sys/statfs.h> instead." 9 #endif 10 11 #include <endian.h> 12 #include <bits/align64bit.h> 13 #include <bits/types.h> 14 #include <bits/wordsize.h> 15 16 /* 64-bit libc uses the kernel's 'struct statfs', accessed via the 17 statfs() syscall; 32-bit libc uses the kernel's 'struct statfs64' 18 and accesses it via the statfs64() syscall. All the various 19 APIs offered by libc use the kernel shape for their struct statfs 20 structure; the only difference is that 32-bit programs not 21 using __USE_FILE_OFFSET64 only see the low 32 bits of some 22 of the fields (the __fsblkcnt_t and __fsfilcnt_t fields). */ 23 24 #if defined __USE_FILE_OFFSET64 25 # define __field64(type, type64, name) type64 name 26 #elif __WORDSIZE == 64 27 # define __field64(type, type64, name) type name 28 #elif __BYTE_ORDER == __LITTLE_ENDIAN 29 # define __field64(type, type64, name) \ 30 type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad 31 #else 32 # define __field64(type, type64, name) \ 33 int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name 34 #endif 35 36 struct statfs 37 { 38 __SWORD_TYPE f_type; 39 __SWORD_TYPE f_bsize; 40 __field64(__fsblkcnt_t, __fsblkcnt64_t, f_blocks); 41 __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bfree); 42 __field64(__fsblkcnt_t, __fsblkcnt64_t, f_bavail); 43 __field64(__fsfilcnt_t, __fsfilcnt64_t, f_files); 44 __field64(__fsfilcnt_t, __fsfilcnt64_t, f_ffree); 45 __fsid_t f_fsid; 46 __SWORD_TYPE f_namelen; 47 __SWORD_TYPE f_frsize; 48 __SWORD_TYPE f_flags; 49 __SWORD_TYPE f_spare[4]; 50 }; 51 52 #undef __field64 53 54 #ifdef __USE_LARGEFILE64 55 struct statfs64 56 { 57 __SWORD_TYPE f_type; 58 __SWORD_TYPE f_bsize; 59 __U64_TYPE f_blocks; 60 __U64_TYPE f_bfree; 61 __U64_TYPE f_bavail; 62 __U64_TYPE f_files; 63 __U64_TYPE f_ffree; 64 __fsid_t f_fsid; 65 __SWORD_TYPE f_namelen; 66 __SWORD_TYPE f_frsize; 67 __SWORD_TYPE f_flags; 68 __SWORD_TYPE f_spare[4]; 69 }; 70 #endif 71 72 /* Tell code we have these members. */ 73 #define _STATFS_F_NAMELEN 74 #define _STATFS_F_FRSIZE 75