8529f613b6
Admittedly this is something that the compiler should be able to just do for us, but gcc just isn't that smart. And trying to use a structure initializer (which would get us the right semantics) ends up resulting in gcc allocating stack space for _two_ 'struct stat', and then copying one into the other. So do it by hand - just have a per-architecture macro that initializes the padding fields. And if the architecture doesn't provide one, fall back to the old behavior of just doing the whole memset() first. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
135 lines
2.9 KiB
C
135 lines
2.9 KiB
C
#ifndef _ASM_X86_STAT_H
|
|
#define _ASM_X86_STAT_H
|
|
|
|
#define STAT_HAVE_NSEC 1
|
|
|
|
#ifdef __i386__
|
|
struct stat {
|
|
unsigned long st_dev;
|
|
unsigned long st_ino;
|
|
unsigned short st_mode;
|
|
unsigned short st_nlink;
|
|
unsigned short st_uid;
|
|
unsigned short st_gid;
|
|
unsigned long st_rdev;
|
|
unsigned long st_size;
|
|
unsigned long st_blksize;
|
|
unsigned long st_blocks;
|
|
unsigned long st_atime;
|
|
unsigned long st_atime_nsec;
|
|
unsigned long st_mtime;
|
|
unsigned long st_mtime_nsec;
|
|
unsigned long st_ctime;
|
|
unsigned long st_ctime_nsec;
|
|
unsigned long __unused4;
|
|
unsigned long __unused5;
|
|
};
|
|
|
|
/* We don't need to memset the whole thing just to initialize the padding */
|
|
#define INIT_STRUCT_STAT_PADDING(st) do { \
|
|
st.__unused4 = 0; \
|
|
st.__unused5 = 0; \
|
|
} while (0)
|
|
|
|
#define STAT64_HAS_BROKEN_ST_INO 1
|
|
|
|
/* This matches struct stat64 in glibc2.1, hence the absolutely
|
|
* insane amounts of padding around dev_t's.
|
|
*/
|
|
struct stat64 {
|
|
unsigned long long st_dev;
|
|
unsigned char __pad0[4];
|
|
|
|
unsigned long __st_ino;
|
|
|
|
unsigned int st_mode;
|
|
unsigned int st_nlink;
|
|
|
|
unsigned long st_uid;
|
|
unsigned long st_gid;
|
|
|
|
unsigned long long st_rdev;
|
|
unsigned char __pad3[4];
|
|
|
|
long long st_size;
|
|
unsigned long st_blksize;
|
|
|
|
/* Number 512-byte blocks allocated. */
|
|
unsigned long long st_blocks;
|
|
|
|
unsigned long st_atime;
|
|
unsigned long st_atime_nsec;
|
|
|
|
unsigned long st_mtime;
|
|
unsigned int st_mtime_nsec;
|
|
|
|
unsigned long st_ctime;
|
|
unsigned long st_ctime_nsec;
|
|
|
|
unsigned long long st_ino;
|
|
};
|
|
|
|
/* We don't need to memset the whole thing just to initialize the padding */
|
|
#define INIT_STRUCT_STAT64_PADDING(st) do { \
|
|
memset(&st.__pad0, 0, sizeof(st.__pad0)); \
|
|
memset(&st.__pad3, 0, sizeof(st.__pad3)); \
|
|
} while (0)
|
|
|
|
#else /* __i386__ */
|
|
|
|
struct stat {
|
|
unsigned long st_dev;
|
|
unsigned long st_ino;
|
|
unsigned long st_nlink;
|
|
|
|
unsigned int st_mode;
|
|
unsigned int st_uid;
|
|
unsigned int st_gid;
|
|
unsigned int __pad0;
|
|
unsigned long st_rdev;
|
|
long st_size;
|
|
long st_blksize;
|
|
long st_blocks; /* Number 512-byte blocks allocated. */
|
|
|
|
unsigned long st_atime;
|
|
unsigned long st_atime_nsec;
|
|
unsigned long st_mtime;
|
|
unsigned long st_mtime_nsec;
|
|
unsigned long st_ctime;
|
|
unsigned long st_ctime_nsec;
|
|
long __unused[3];
|
|
};
|
|
|
|
/* We don't need to memset the whole thing just to initialize the padding */
|
|
#define INIT_STRUCT_STAT_PADDING(st) do { \
|
|
st.__pad0 = 0; \
|
|
st.__unused[0] = 0; \
|
|
st.__unused[1] = 0; \
|
|
st.__unused[2] = 0; \
|
|
} while (0)
|
|
|
|
#endif
|
|
|
|
/* for 32bit emulation and 32 bit kernels */
|
|
struct __old_kernel_stat {
|
|
unsigned short st_dev;
|
|
unsigned short st_ino;
|
|
unsigned short st_mode;
|
|
unsigned short st_nlink;
|
|
unsigned short st_uid;
|
|
unsigned short st_gid;
|
|
unsigned short st_rdev;
|
|
#ifdef __i386__
|
|
unsigned long st_size;
|
|
unsigned long st_atime;
|
|
unsigned long st_mtime;
|
|
unsigned long st_ctime;
|
|
#else
|
|
unsigned int st_size;
|
|
unsigned int st_atime;
|
|
unsigned int st_mtime;
|
|
unsigned int st_ctime;
|
|
#endif
|
|
};
|
|
|
|
#endif /* _ASM_X86_STAT_H */
|