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linux-generic: fix alignment of struct stat/statfs for nios2

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The hard alignment of 8 was appropriate for most platforms for
which 8-byte values are 8-byte aligned, but this is not true
for the nios2 platform, so only align to the alignment of the
8-byte type on the platform.

Remove the explicit alignment of struct statfs as it's redundant.
This commit is contained in:
Chung-Lin Tang 2013-11-20 16:12:18 -05:00 committed by Chris Metcalf
parent 4b98b2dcdd
commit 7cf8ac4c31
3 changed files with 15 additions and 6 deletions
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9
ports/ChangeLog.linux-generic
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@ -1,3 +1,12 @@
2013-11-13 Chung-Lin Tang <cltang@codesourcery.com>
* sysdeps/unix/sysv/linux/generic/bits/stat.h (__field64): Use
__alignof__(type64) in alignment attribute instead of 8.
* sysdeps/unix/sysv/linux/generic/bits/statfs.h (__field64): Use
__alignof__(type64) in alignment attribute instead of 8.
(struct statfs): Remove alignment attribute.
(struct statfs64): Likewise.
2013-06-05 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/generic/wordsize-32/syscalls.list:

4
ports/sysdeps/unix/sysv/linux/generic/bits/stat.h
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@ -46,10 +46,10 @@
# define __field64(type, type64, name) type name
#elif __BYTE_ORDER == __LITTLE_ENDIAN
# define __field64(type, type64, name) \
type name __attribute__((__aligned__(8))); int __##name##_pad
type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
#else
# define __field64(type, type64, name) \
int __##name##_pad __attribute__((__aligned__(8))); type name
int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
#endif
struct stat

8
ports/sysdeps/unix/sysv/linux/generic/bits/statfs.h
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@ -38,10 +38,10 @@
# define __field64(type, type64, name) type name
#elif __BYTE_ORDER == __LITTLE_ENDIAN
# define __field64(type, type64, name) \
type name __attribute__((__aligned__(8))); int __##name##_pad
type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
#else
# define __field64(type, type64, name) \
int __##name##_pad __attribute__((__aligned__(8))); type name
int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
#endif
struct statfs
@ -58,7 +58,7 @@ struct statfs
__SWORD_TYPE f_frsize;
__SWORD_TYPE f_flags;
__SWORD_TYPE f_spare[4];
} __attribute__((__aligned__(8)));
};
#undef __field64
@ -77,7 +77,7 @@ struct statfs64
__SWORD_TYPE f_frsize;
__SWORD_TYPE f_flags;
__SWORD_TYPE f_spare[4];
} __attribute__((__aligned__(8)));
};
#endif
/* Tell code we have these members. */